WO1997050055A9 - Shopping cart mounted portable data collection device with tethered dataform reader - Google Patents
Shopping cart mounted portable data collection device with tethered dataform readerInfo
- Publication number
- WO1997050055A9 WO1997050055A9 PCT/US1997/011207 US9711207W WO9750055A9 WO 1997050055 A9 WO1997050055 A9 WO 1997050055A9 US 9711207 W US9711207 W US 9711207W WO 9750055 A9 WO9750055 A9 WO 9750055A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- data collection
- collection device
- portable data
- item
- Prior art date
Links
Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/02—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by keys or other credit registering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
- B62B3/1408—Display devices mounted on it, e.g. advertisement displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
- B62B3/1408—Display devices mounted on it, e.g. advertisement displays
- B62B3/1416—Display devices mounted on it, e.g. advertisement displays mounted on the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
- B62B3/1408—Display devices mounted on it, e.g. advertisement displays
- B62B3/1424—Electronic display devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0004—Hybrid readers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
- G06K7/084—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/0036—Checkout procedures
- G07G1/0045—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/0036—Checkout procedures
- G07G1/0045—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
- G07G1/0081—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader the reader being a portable scanner or data reader
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- This invention relates to a portable data collection device adapted for mounting on a shopping cart and, more particularly, a portable data collection device adapted for mounting on a shopping cart and including a retractable, tethered selectively actuatable dataform reader attached to a housing of the portable data collection device.
- the cash register/data terminal typically includes a hand held and/or fix mounted dataform reading and decoding assembly ("dataform reader"). If a fix mounted dataform reader is being used, a store clerk presents each item's bar code dataform to the dataform reader, that is, the dataform is moved along an upper surface of a glass window under which the dataform reader is mounted. If a hand held dataform reader is being used, the clerk "aims" the reader at each item's dataform as the item moves past the terminal.
- dataform reader a hand held and/or fix mounted dataform reading and decoding assembly
- a "good read and decode" signal will be actuated after each successful dataform read and decode to notify the clerk that the item's dataform was successfully read and decoded.
- the signal may be an audible tone or "beep". If no "beep" is heard, the clerk will repeat the reading process for the item until successful.
- Each item's dataform includes a product identifier which is used to retrieve a product description and price of the item from a remote database.
- a visual display on the terminal displays the item's product description and price for each item upon reading and decoding the dataform.
- the terminal When all the items being purchased by a customer have been presented to the reader, the terminal provides a total price for all the customer's items and prints a register receipt listing a product description for each item and its price, a subtotal for all items, a tax amount and a total amount due.
- the amount tendered by the customer is input by the clerk using a terminal keypad.
- the amount tendered and change due are also printed on the register receipt. The clerk collects payment from the customer and dispenses any change.
- a number of problems are associated with such a cash register/data terminal system including: (1) inconvenience for customers waiting in long check-out lines; (2) use of valuable floor space for the check-out area when a number of cash register /data terminals are utilized; and (3) product prices have to be either printed on labels affixed to each item or marked on shelving adjacent the item's shelf space so a customer knows the price of a selected item.
- a customer is presented with a portable hand held data terminal including a hand held dataform reader when he or she enters the store.
- the customer uses the reader to read a bar code dataform on each item prior to or concurrently with placing the item into his or her shopping cart.
- a memory in the portable data terminal stores a retrieved product description and price for each selected item.
- a store clerk merely prints a register receipt based on the data stored in the dataform reader and collects payment from the customer.
- the customer must carry the data collection device during the shopping session.
- the device represents another item which must be handled by the customer in addition to the shopping cart, items being purchased and possibly children. This is inconvenient for the customer and can lead to the device being damaged through mishandling or dropping of the device by a hurried customer.
- the retailer must dedicate floor space to the entrance area where the devices are presented to and collected from customers.
- the device is susceptible to being stolen.
- What is needed is a more convenient system for providing customers with a portable data collection device including a dataform reader which can be used by a customer to read dataforms of items selected for purchase during a shopping session.
- a portable data collection device including a hand held dataform reader includes a housing having a clamping mechanism for securely clamping the housing to a pushing bar of a shopping cart.
- the housing defines an interior region in which electrical circuitry of the device is disposed.
- the device further includes a hand held dataform reader which is tethered with a retractable electrical cable to the housing.
- the reader operates in two modes; a presentation mode and a hand held mode.
- the reader's imaging and illumination assemblies are continuously actuated to read a dataform of an item presented to the reader. This is referred to as the presentation mode.
- the reader is pulled from the opening in housing.
- the imaging and illumination assemblies are deactivated.
- the customer moves the reader so as to "aim" it at a selected items dataform.
- a trigger on the reader is depressed to actuate the reader's imaging and illumination assemblies.
- the illumination assembly includes a targeting assembly to aid in aiming the reader at the target dataform.
- decoding circuitry disposed in the housing decodes the imaged dataform.
- a speaker mounted in the housing emits an audible tone or "beep" to indicate to the customer that the item's dataform has been read and decoded.
- the reader is then returned to its position in the housing opening.
- the cable connecting the reader and electrical circuitry in the housing is automatically recoiled by a recoil mechanism in the housing.
- the reader includes the illumination assembly for illuminating a selected item's dataform with a plurality of illumination LEDs and also includes targeting LEDs which generate a "crosshair" pattern for properly aiming the device at the target dataform.
- the crosshair pattern size substantially corresponds to the field of view or target area of the imaging assembly.
- the illumination assembly also includes a lens array for properly focusing the light emitted by the illumination and targeting LEDs over an area substantially corresponding to the field of view or target area of the imaging assembly.
- the imaging assembly is preferably a two dimensional charge coupled device imaging assembly including a board camera assembly with a two dimensional photosensor array.
- the imaging assembly further includes a control and decoder printed circuit board on which circuitry is mounted including a microprocessor for controlling operations of the device and image processing and decoding circuitry for processing and decoding the dataform image from a composite analog video signal generated by the board camera assembly.
- the imaging assembly of the present invention may be used to read both one and two dimensional bar code dataforms as well as matrix dataforms (MaxiCode, Data Matrix, Code 1, etc.).
- a one dimensional bar code comprises one horizontal line of alternating vertically oriented black and white bars of varying widths, e.g., UPC bar code while a two dimensional bar code consists of a plurality of horizontal lines of bar code, e.g., PDF-417, Supercode, etc.
- the electrical circuitry of the portable data collection device includes the microprocessor for controlling operations of the device.
- the circuitry also includes the image processing and decoding circuitry for decoding a dataform read by the dataform reader and communications circuitry for sending data to and receiving data from remote devices.
- the housing also supports a visual display screen with a touch sensitive overlying layer providing for user interface with the microprocessor.
- the communications circuitry including a radio frequency (rf) transceiver module, retrieves the item's price and product description via a cellular communications network of which the device is a part.
- rf radio frequency
- the device display screen displays a number of screen menus and associated touch sensitive response blocks and/or virtual keypads and keyboards for user input of data and commands to the device.
- Menu driven options presented to a customer include selecting recipes for an item whose dataform was read and ordering prepared items from the store's delicatessen, meat department, etc.
- the communications circuitry permits a location of the device to be monitored for security purposes.
- Figure 1 is a perspective view of a portable data collection device of the present invention as mounted on a shopping cart with a dataform reader of the device being employed in a hand held mode;
- Figure 2 is another perspective view of the portable data collection device of Figure 1 as mounted on the shopping cart with the dataform reader of the device being employed in a presentation mode;
- Figure 3 is a view, partly in section and partly in elevation, of the portable data collection device of Figure 1 ;
- Figure 4 is a view, partially in section and partly in top plan, of the retractable, tethered dataform reader of the portable data collection device of Figure 1 ;
- Figure 5 is a schematic representation of selected electronic modules and circuitry of the portable data collection device of Figure 1 ;
- Figure 6 is a flow chart representing processing steps of the portable data collection device of Figure 1 in connection with a shopping session at a retail store using the device;
- Figure 7 is a representative welcoming display displayed on a touch sensitive display screen of the portable data collection device of Figure 1 ;
- Figure 8 is a representative introductory menu displayed on the touch sensitive display screen of the portable data collection device of Figure 1 in connection with a shopping session;
- Figure 9 is a representative menu displayed on the touch sensitive display screen of the portable data collection device of Figure 1 after an item's bar code dataform has been read;
- Figure 10 is a flow chart representing processing steps of the portable data collection device of Figure 2 in connection with a routine for checking out items selected for purchase;
- Figure 11 is a representative screen layout displayed on the touch sensitive display screen of the portable data collection device of Figure 1 in connection with a routine for checking out items selected for purchase;
- Figure 12 is a flow chart representing processing steps of the portable data collection device of Figure 1 in connection with a help routine for aiding a customer
- Figure 13 is a representative screen layout displayed on the touch sensitive display screen of the portable data collection device of Figure 1 in connection with a help routine for aiding a customer find a desired item;
- Figure 14 is a flow chart representing processing steps of the portable data collection device of Figure 1 in connection with a routine for providing a recipe using a selected food item;
- Figure 15 is a representative screen layout displayed on the touch sensitive display screen of the portable data collection device of Figure 1 in connection with a routine for providing a recipe using a selected food item;
- Figure 16 is a flow chart representing processing steps of the portable data collection device of Figure 1 in connection with a routine for displaying a layout of the retail store the portable data collection device of Figure 1 is used in;
- Figure 17 is a flow chart representing processing steps of the portable data collection device of Figure 1 in connection with a routine for permitting a customer to order a prepared item during a shopping session
- Figure 18 is a representative screen layout displayed on the touch sensitive display screen of the portable data collection device of Figure 1 in connection with a routine for permitting a customer to order a prepared item during a shopping session;
- Figure 19 is a schematic representation of communication cells of a cellular communications system utilized by a spread spectrum communications circuitry of the portable data collection device of Figure 1 ;
- Figure 20 is a flow chart representing processing steps of the portable data collection device of Figure 1 in connection with a routine for providing customer assistance and monitoring a location of the shopping cart;
- Figure 21 is an alternate embodiment a portable data collection device of the present invention mounted on a shopping cart.
- Figure 22 is another alternate embodiment of a portable data collection device of the present invention mounted on a shopping cart.
- a portable data collection device of the present invention is shown generally in Figures 1 and 2.
- the device 10 includes a housing 12 supporting an interactive touch sensitive display screen 14.
- the housing 12 is mounted on a pushing handle 16 of a shopping cart 18.
- the interactive touch display screen 14 is mounted to be visible through an opening in an inclined front surface 20 of the housing 12.
- the display screen 14 is at a proper angle for easy viewing by a customer having his or her hands on the shopping cart handle 16.
- a dataform reading assembly including a hand held bar code dataform reader 22 is retractively tethered or attached to the housing 12 with an electrical cable 24.
- the cable 24 includes a plurality of conductors 140 ( Figure 4) for supplying power to the reader 22, coupling a composite analog video signal 28 (Figure 5) representing a bar code dataform 30 (shown in phantom in Figure 1 and in top plan in Figure 4) to a processor 32 mounted on a control and decoder printed circuit board 33 ( Figure 3 and schematically in Figure 5) in the housing 12.
- the circuitry on the control and decoder board 33 and die dataform reader 22 comprise a dataform reading and decoding assembly.
- the dataform reader 22 operates in two modes: a) a hand held mode; and b) a presentation mode.
- the hand held mode of operation is represented in Figure 1 wherein the reader 22 is removed by the customer from an opening 36 in a side 38 of the housing 12.
- the reader 22 When supported in the opening 36, the reader 22 extends slightly beyond the side 38 so that the customer can easily grasp a front portion of the reader and slide it out of the opening.
- the customer moves the reader 22 to a dataform 30 of an item so desired to be purchases or priced by the customer.
- the customer depresses a trigger 40 to actuate an imaging assembly 42 and an illumination assembly 44 of the reader 22.
- the illumination assembly 44 provides a uniform illumination pattern that substantially corresponds to an imaging area or field of view 46 of the imaging assembly 42 and additionally generates a more intense crosshair illumination pattern 48 to aid the customer in positioning the reader 22 so that the dataform 30 of an item 50 is properly within the imaging area of the reader.
- the uniform illumination pattern and crosshair aiming pattern are rapidly alternated between off and on states, such that one is off while the other is on.
- This alternation of illumination pattern avoids the difficulty of having to decode a captured dataform image which has an intense crosshair illumination pattern imposed thereon.
- the alternation of the illumination and crosshair patterns is rapid enough that it appears to the customer that the crosshair aiming pattern is continuously on. While keeping the trigger 40 depressed, the customer aims the crosshair pattern
- the reader 22 is disposed in the housing
- reader 22 is turned on by a magnet 160 positioned in the opening 36 when the reader
- the hand held mode is advantageously used when an item on a shelf
- the presentation mode is too large or too clumsy to move from the shelf or if the customer just wishes to check a price without removing the item from the shelf.
- a magnetic stripe reader 60 is molded into an upper surface 125 of the housing
- the stripe reader 60 includes a slotted opening 61a in the upper surface and
- Appropriate magnetic stripe decoding circuitry ( Figure 5) is mounted on the control and decoder board 33.
- the magnetic stripe reader 60 is used in connection with a customer identification subroutine to be discussed below.
- the housing 12 also supports a thermal printing assembly 62 ( Figure 3) which functions to print out a paper receipt 63 for the customer at the completion of shopping session or a recipe for an item.
- the printing assembly 62 discharges the receipt or recipe printout through a slot shaped opening 64 in an upright front surface 66 of the housing 12.
- An assistance request button 68 extending through an opening in the inclined front surface 20 of the housing 12 is activated by a shopper to request assistance from store personnel as will be discussed below in connection with Figure 20.
- the device 10 also includes a high capacity battery 70 (Figure 2) which is mounted in a case disposed on a bottom rack 72 of the shopping cart 18.
- the battery 70 preferably uses lead-acid technology because of its low cost, high energy capacity and lack of memory effect.
- the weight associated with a lead-acid battery is not a concern because it is mounted on me cart 18.
- a typical 6 volt, three cell lead-acid battery such as the type used on a motorcycle, has an energy capacity sufficient to power the device 10 for a time period in excess of 24 hours.
- a power lead 74 connects the battery 70 to power circuitry 76 (shown schematically in Figure 5) in the housing
- Figure 3 is a view, partly in section and partly in elevation, of the housing 12.
- the device 10 is secured to the shopping cart handle 16 by a clamping assembly which clamps the housing 12 to the cart pushing handle 16.
- the clamping assembly includes adjustable clamp 80 and an arcuate clamping surface 82 of the housing 12.
- Two sets of two threaded bolts 84, 86 extend between the clamp 82 and threaded openings in the housing 12 to secure the adjustable clamp 82 to the housing 12.
- the two sets of threaded bolts 84, 86 are tightened, the housing 12 is secured to the pushing handle 16 of the cart 18.
- the thermal printer assembly 62 includes a thermal printhead 90 and an opposing platen 92 to position the paper 63 against the printhead 90.
- a motor 94 drives a feed roller 96.
- the feed roller 96 operates in conjunction with an idler roller 98 to draw paper 63 from a paper roll 100 past the printhead 90 and feed the receipt or recipe printout 63 out of the slot shaped opening 64 in the housing 12.
- Printer driver circuitry 101 for operating the printer assembly components is mounted on the control and decoder printed circuit board 33 disposed in the housing 12. At least a portion of the circuitry 101 may be embodied in code stored in a memory 106 represented by a memory chip on the control and decoder printed circuit board 33 and executed by the processor 32, both on printed circuitry board 102.
- the user interactive display screen 14 includes a liquid crystal display (LCD) display panel 110 and an overlying touch sensitive resistive contact panel 112.
- LCD liquid crystal display
- Circuitry for operating the screen 14 and the panel 112 includes LCD driver circuitry 114 and contact panel driver circuitry 116. Additionally, the circuitry 114, 116 for operating the LCD display and contact panels 110, 112 may, at least in part, be implemented in software stored in the memory 106 and executed by the processor 32.
- the spread spectrum radio communications circuitry 118 may be embodied in one or more IC chips mounted on the printed circuit board 33. Alternatively, the spread spectrum communications circuitry 18 may be implemented on a separate printed circuit board with a PCMCIA interface and secured to the printed circuit board 102 through a PCMCIA standard slot interface.
- An antenna lead 122 connects the communications circuitry to an antenna mast 124 extending through an opening in the upper surface 125 of the housing 12.
- the communications circuitry 118 includes a radio frequency (rf) radio transceiver module which communicates decoded bar code data to a host computer 1260 (schematically shown in Figure 19) utilizing a spread spectrum cellular radio network (also shown schematically in Figure 19).
- the decoded data includes a product identifier encoded in the item's dataform.
- the transceiver module receives data relating to the item from the host computer 1260, e.g., a product name or description for the item, the price of the item, etc.
- the host computer 1260 retrieves the data from a database containing product information which includes the product identifier as a search key.
- power to operate the device 10 is supplied by the battery 70 disposed on the bottom rack 72 of the shopping cart 18.
- the power lead 74 interconnects the battery 70 to power supply circuitry 76 mounted on the control and decoder board 33 within the housing 12.
- the housing 12 also includes a power supply port 128 where an external power source may be connected for charging the battery 70.
- the power supply circuitry 76 controls charging and controls converting the battery power supply to appropriate electrical parameters for use by various circuitry and
- the housing 12 also supports the speaker 130 which is mounted behind a grated opening 132 in the housing 12.
- the speaker 130 is driven by audio indicator driver circuitry 134 mounted on the control and decoder board 33 and provides audio feedback in the form of a l h second "beep" to the customer to indicate a successful bar code dataform read and decode.
- Figure 4 is a cut-away view of the reader 22 and a portion of the device 10 in the region of the opening 36 showing details of a recoil or cable retraction mechanism
- the reader 22 is connected to the housing 12 with the cable 24.
- the cable 24 includes the plurality of conductors 140 for: a) coupling operating power 26 to the reader 22; b) coupling the composite video signal 28 from the reader 22 to the processor 32; and c) coupling control signals from the processor 32 to the reader 22.
- the cable 24 is secured to a housing 142 of the reader with a clamping grommet 144 to prevent the reader 22 from being physically separated from the cable 24.
- the reader housing 142 is a modular unit that includes a top half and a mating bottom half. Only the bottom half of the reader housing is shown in Figure 4 so that the internal components of the reader 22 are visible in the Figure. To further secure the reader 22 to the cable 24, a knot (not shown) may be tied in the cable just inside the reader housing 142.
- the plurality of conductors 140 are electrically coupled to a printed circuit board 146 within die reader housing 142 by a connector 148.
- the cable 24 is wrapped around a recoil spool 150.
- the recoil spool 150 spins about a center pin 152 of the spool.
- the pin 152 is a hollow cylinder such that the cable 24 may be threaded through the pin 152 and connected to circuitry within the housing 12.
- a spirally wound bias spring 154 is secured to the pin 152 at die center of the recoil spool 150 and to the spring tab 156 at the perimeter of the re-coil spool 150 to bias the spool in a counter clockwise direction (as viewed in Figure 4). This arrangement keeps the cable 24 under tension when die reader 22 is removed from the housing opening 20.
- the reader 22 includes a user trigger 40 (shown in Figure 1) which is depressed by the customer to initiate a bar code reading session when the reader is being used in the hand held mode.
- the trigger 40 prevents the reading of unintended dataforms.
- the reader 22 is being moved to and aimed at a desired dataform.
- the trigger 40 is not accessible.
- the reader 22 is intended to be used to read a dataform of any item presented to the reader, a manually activated read button is impractical.
- a magnetic switch 158 in the reader housing 142 is "tripped" to an on state by a magnet 160 mounted just inside of the housing wall 162 defining the opening 36 when the reader 22 is positioned in the opening.
- the magnetic switch 158 causes the imaging assembly 42 and the illumination assembly 44 of the reader 22 to be actuated.
- the edge formed by the housing wall 162 and the side wall 38 is rounded ( Figure 4) to avoid wearing an outer surface of the cable 24.
- the reader 22 is preferably utilizes a two-dimensional imaging assembly.
- the imaging assembly 42 includes a two-dimensional photosensor array 170 ( Figure 4) and an optic assembly supported in a lens housing or shroud 172 for focusing an image of the dataform 30 in the target area 46 onto the photosensor array 170.
- Circuitry on printed circuit boards 174, 176 and 146 operate to sequentially read out charges accumulating on photosensors of the photosensor array 104 and generate the analog composite video signal 28 representative of consecutive frames of the imaged dataform 30.
- the video signal 28 is coupled to image processing circuitry 178 disposed on the control and decoder printed circuit board 33 which converts a portion of the composite video signal representing a captured image frame into a series of gray scale values whose magnitudes represent the relative reflectivity of portions of the imaged dataform
- the image processing circuitry 178 then performs cell extraction analysis to reconfigure the imaged dataform in me memory 106.
- the decoding circuitry 34 then decodes the representation of the imaged dataform stored in the memory 106. At least a portion of the image processing and decoding circuitry may be implemented in code executed by the processor 32.
- the illumination assembly 44 of the reader 22 includes four sets of four surface mount illumination LEDs 180 positioned on a printed circuit board 182 (only two sets of the four sets of four illumination LEDs are seen in Figure 4).
- the illumination LEDs direct illumination through corresponding aligned lens 181 of a lens array 184 towards the imaging target area 46.
- Two targeting LEDs 186, 188 operate to direct illumination through aligned lens 189 in me lens array 184 and generate die crosshair illumination pattern in the target area 46 to assist the operator in relatively positioning the reader 22 and d e dataform 30.
- the crosshair illumination pattern is only generated when the reader 22 is used in the hand held mode.
- the targeting LEDs 186, 188 are not energized when the reader 22 is used in die presentation mode.
- Aligned openings in the board 182 permit illumination from the targeting LEDs to be directed through the lens 189.
- a more detailed description of the components of a suitable two dimensional imaging assembly for a hand held dataform reader and its operation can be found in U.S. Patent Application Serial No. 08/609,344, filed March 1, 1996, and entitled PORTABLE DATA COLLECTION DEVICE WITH LED TARGETING AND ILLUMINATION ASSEMBLY, the contents of which are incorporated herein in the entirety by reference.
- FIG. 6 is a flowchart of an operational routine of the portable data collection device 10 in accordance with the present invention.
- an introductory message 200 is displayed on the screen 14.
- a typical introductory message is shown in Figure 7.
- the message 200 includes a brief welcome message, which could include promotional advertising, and instructions to enter a customer identification number.
- the customer identification number may be entered by touching the interactive touch sensitive display screen 14 at appropriate areas or blocks of the screen where a virtual keypad 210 is displayed on the screen.
- the customer identification number may be entered into the device by using the dataform reader 22 to read a bar code dataform on a customer ID card (not shown) or by swiping the magnetic stripe of the customer ID card through die magnetic stripe reader 60. After entry of the customer identification number, the customer will be prompted to enter a personal identification number (PIN number). After the customer has entered an ID number and a PIN number, me identification routine proceeds to step 302 where the customer ID and PIN numbers are validated. Validation includes transmitting the customer ID number and PIN to the host computer 1260 using the communication circuitry 118 where the numbers are compared to a list valid numbers. The host computer 1260 transmits a valid or invalid
- the customer ID number and PIN number may be
- menu 202 of services offered is shown in Figure 8.
- the menu includes a message 204
- the operator may press an area of the screen 14 corresponding to the appropriate virtual buttons 206,
- Step 306 of Figure 6 represents the customer
- step 308 a confirmation screen display 202 is displayed to the customer.
- a sample confirmation screen display 220 is shown in Figure 9.
- confirmation screen display 220 includes an information area 222 in which a product
- This information associated with the item is obtained from a database
- the item's dataform includes a product identifier
- the processor 32 Upon decoding the item's dataform, the processor 32, in cooperation with the communications circuitry radio transceiver module and utilizing a spread spectrum cellular communications system, causes the product identifier to be transmitted via rf communications to the host computer 1260, which also has a transceiver and is part of the cellular communications system.
- the host computer 1260 accesses a database (not shown) to find a product name, product size, and price associated widi the product identifier.
- the host computer 1260 transmits the retrieved data associated with the item in packets along with suitable control, error checking and protocol data.
- the radio transceiver module of die device 10 receives the transmission of the retrieved data and the processor 32 causes some or all of the retrieved data to be displayed in the information area 222.
- the customer may confirm his or her desire to purchase the item by pressing an area of the screen 14 corresponding to virtual button 224 (the product name of die item is inserted in the space labeled "PRODUCT X" in button 224). If the customer does not wish to purchase the item whose dataform was read, me customer presses an area of the screen 14 corresponding to virtual button 226 (assuming the item had previously been selected for purchase). If the customer wishes to simply ignore the dataform read just completed, an area of the screen 14 corresponding to virtual button 228 is touched.
- the confirmation screen display 220 may also include a message area 230 where other information about the product may be displayed. For example, if die product is a tobacco product, the Surgeon General's warning may be displayed. If die product contains alcohol, the message area may indicate mat the age of the purchaser will be confirmed upon leaving the store.
- the confirmation screen display 220 may advantageously include a menu listing categories of information available to the customer. For example, if there is a coupon or rebate offered by the store for a particular product, a menu selection represented be virtual selection button 232 will, if an area of the screen 14 is touched corresponding to the button 232, cause die printing assembly 62 to print die coupon or rebate. If the store has alternative products and wants to give the customer a greater selection, the display 220 may provide an optional menu selection which, if an area of the screen 14 is touched corresponding to the button 234, will cause the screen to display a list of alternative products, a description of each and the price per
- the confirmation screen display 220 may also provide an optional menu selection which, if an area of the screen 14 is touched corresponding to a virtual button 236, will cause the screen 14 to display of additional information such as nutritional information for the selected product.
- Another optional menu selection of the display 22 is shown as virtual button 238 which provides the customer with recipes for use of the selected product. If the virtual selection button 238 is selected, the display 14 would show the names of all recipes from the store's recipe data base which use the product an one or more of the recipes may be selected for printing by the printing assembly 62.
- d e program for the block will be executed by the processor 32 as a separate subroutine at step 312 and, when finished, will return the customer to the confirmation screen display 220 at step 308. If a subroutine is not selected, the routine waits for operator confirmation at step 314. If the customer selects to purchase the item by pressing virtual button 224 to purchase the item, the routine advances from step 314 to step 316 where the item is added to the customer's running total list of purchases stored in die memory 106. The routine then returns to the menu of services available at step 304.
- step 318 If the customer wishes to delete the item whose dataform was previously read and confirmed for purchase, an area of the screen 14 corresponding to virtual button 226 is touched and die routine advances from step 314 to step 318. This option is chosen where the item was previously confirmed for purchase using virtual button 224 earlier in the shopping session and later in the session the customer has changed his or her mind about purchasing the item and wants to return the item to the shelf and delete the item from the running list of purchases in die memory 106. At step 318, the item is removed from the customer's running list of purchases. After deletion, the routine returns to the menu of services available at step 304.
- step 306 the routine advances to step 320 where it checks whether the customer has selected the checkout routine. If an area of the screen 14 corresponding to virtual button 214 has been pressed, the selected service is checkout and the routine advances to step 322 where d e checkout routine ( Figure 10) is run and then the process ends.
- die routine advances to step 324 where it determines if another subroutine corresponding to virtual buttons 206 (help find an item subroutine - Figure 12), 208 (display store map subroutine - Figure 16), 210 (obtain a recipe subroutine - Figure 14), 212 (order a prepared item subroutine - Figure 17). If another subroutine has not been selected, the routine loops back to step 304 where the screen layout 202 of menu services is displayed to the customer. However, if at step 324, a subroutine has been selected, the routine advances to step 326 where the service subroutine is run.
- the routine Upon completion of the subroutine, the routine again returns to step 304 where the menu services screen layout 202 is displayed.
- the checkout subroutine is shown in Figure 10.
- the subroutine displays a checkout screen to the customer.
- Figure 11 is an example screen display 250 for checking out.
- the display 250 includes a receipt area 252 where an image of the customer's receipt appears.
- Two virtual scroll arrows 254, 256 are used by the customer to scroll a lengthy receipt.
- the customer has finished reviewing the receipt, he or she must confirm the checkout by pressing an area of the screen 14 correspond to a virtual confirmation button 258 and select a payment mediod at step 402.
- a payment method is selected by touching an area of the screen 14 corresponding to a cash payment virtual button 260, a debit card payment virtual button 262, a credit card payment virtual button 264 or a check payment virtual button 264.
- a printout of the receipt is printed by die printing assembly 62 and the checkout subroutine ends.
- Figure 12 is a flowchart of the help find subroutine associated with block 206 of the introductory menu 202 (figure 8).
- a help find screen is displayed to the customer.
- a sample screen display 270 is shown at Figure 13.
- An alphabetical list of products is displayed in a scroll box 272.
- virtual arrow buttons 274, 276 are used to scroll a highlight bar 278 through die list.
- the virtual keyboard 280 may be used to input a product name by sequentially pressing areas of the screen 14 to spell out a product name. As me product name is spelled out, d e typed letters will appear in block 281 and die scroll list will move to e products which fit the partially typed description.
- a virtual select button 282 is used to confirm the highlighted choice, the help find subroutine advances to step 504 where the location of the selected item is displayed to the customer.
- Figure 14 is the subroutine for finding a recipe associated with a product.
- the first step 600 displays a recipe screen display 790 (shown at Figure 15) to the customer.
- the customer uses a virtual keyboard 792 to enter a search word which appears in block 794.
- the reader 22 can be used to read a dataform of an item, upon decoding the item's dataform, the name of the product will automatically be entered in block 794 as the search term.
- the customer will use virtual keys 796, 798 to select to search the word entered in block 794 by title (virtual key 794) or by ingredient (virtual key 796).
- Customer search word entry is represented by step 702.
- the list of matches is shown in scroll box 800.
- Virtual scroll arrows 802, 804 are used to move a highlight bar 806 over the list.
- a virtual select button 808 is used to select a recipe.
- User selection of a desired item with the highlight bar 806 and the select key 808 is indicated by step 706.
- the selected recipe is printed by die printing assembly 62.
- Figure 16 is a flowchart of the subroutine to display a store map. This routine is associated with block 208 of the introductory menu 202. The subroutine has only a single step 900 which is display a store map on the display screen 14.
- FIG 17 is a flowchart for a subroutine which enables the shopper to order prepared food such as a deli order or a cake order during the course of a shopping session.
- This routine is associated witii selection of block 212 of the introductory menu screen layout 202.
- an order screen menu 1100 is displayed on the display screen 14.
- the menu 1100 includes virtual buttons corresponding to a listing of departments from which custom ordered items can be ordered.
- the departments which produce custom ordered items include the bakery department (virtual button 1102), the florist department (virtual button 1104), the delicatessen department (virtual button 1106) and d e butcher or meat department (virtual button 1108).
- Step 1002 of me subroutine represents obtaining shopper input.
- step 1002 may represent electronically paging through several screens to select the appropriate cake and frosting design and entering the recipient's name and age.
- step 1004 me routine advances to step 1004, where the order is confirmed.
- the customer may be alerted by a tone emitted from the speaker 130 or a message (not shown) flashed on the display screen 14 alerting the customer that the custom ordered item may be picked up from the appropriate department.
- Figure 19 is a schematic diagram of access point coverage of the spread spectrum cellular communication network in a parking lot 1200.
- me device's communication circuitry 118 utilizes the spread spectrum cellular communication network for communicating with the host computer 1260.
- Access points 1238, 1240 and 1242 represent interior access points of the network. Interior access points have omni-directional antennas and therefore approximately circular areas of communications coverage or cells.
- Access points 1244, 1246, 1248 and 1250 are perimeter access points of the network. Each has a directed antenna for forming coverage areas or cells as indicated by the two ellipses drawn around each of the points.
- the portable data collection device 10 mounted on the shopping cart 18 which is pushed to a customer's car in the shopping parking lot 1200 may roam from cell to cell and maintain radio contact with the host computer 1260, which also functions as an access point and has a coverage area substantially equal to the boundaries of the store 1202. Therefore, the device 10 provides an assistance call and anti-dieft routine.
- Figure 20 is a flowchart of the operation of the assistance call and anti-dieft subroutine.
- the subroutine monitors whether the assistance button 68 has been depressed. If die button has be depressed, the device 10 emits a loud beeping noise from the speaker 130 at step 1302 and store personnel are notified through a message displayed on a visual display screen of the host computer 1260 at step 1304.
- the message includes a location of which cell the cart 18 is in. Appropriate store personnel can then assist die customer.
- die subroutine at step 1306, checks whedier the cart 18 has been pushed out of range of its current cell, if the cart 18 is out of its current cell, the subroutine determines, at step 1308, if it can reregister the devices communications circuitry 118 with anod er access point. If the cart 18 has roamed out of range of the device's current cell and cannot be reregistered with another access point, then the shopping cart 18 has left the bounds of the store and the parking lot.
- the speaker 130 on the cart is continuously sounded and a message is continuously flashed on the display screen 14 which requests that the cart 18 be returned to die store.
- an appropriate message is displayed on die display screen of ie host computer 1260 to alert store personnel that the cart 18 has been taken from store property and providing information setting forth ie last cell die cart 18 was in.
- An appropriate wireless local area network system including access points and communications circuitry for the device is available from Aironet Wireless
- FIG 21 is an alternate embodiment of the portable data collection device of the present invention.
- the device 1400 includes a housing 1410 which has an inverted "L" shape in cross-section and is releasably mounted on a pushing handle 1416 of a shopping cart 1414. A larger portion of the housing 1410 extends below the pushing handle 1416 than the housing of the first embodiment. A similar clamping mechanism as mat disclosed in die first embodiment secures the housing to the cart handle 1416.
- a battery (not shown) is supported in a casing on a lower rack of the cart powers d e device's electrical circuitry and modules as in the first embodiment.
- the device 1400 includes electrical circuitry in the housing 1410 and a retractable dataform reader 1422 which is similar to the circuitry described in connection with the device 10 described in die first embodiment and includes a display screen 1414 with an interactive touch sensitive overlay, similar to the display screen 14 in the first embodiment.
- the device 1400 further includes the retractable dataform reader 1422, which is similar to the reader 22 described in die first embodiment and includes a cable recoil mechanism which is similar to the cable recoil mechanism 138 described in die first embodiment.
- a front surface 1490 of the housing includes four outer depressible buttons 1491 , 1492, 1493, 1494 surrounding a central depressible button 1495.
- the top and bottom buttons 1491, 1492 function as up and down directional arrow keys when a highlight bar is displayed on the display screen 1414 and the right and left buttons 1493, 1494 function as right and left directional arrow keys when a cursor is displayed on the display screen.
- FIG 22 is another alternate embodiment of me portable data collection device of the present invention.
- the device 1500 includes a housing 1510 which is "L" shaped in cross section and is releasably mounted on a pushing handle 1516 of a shopping cart 1514.
- a larger portion of die housing 1510 extends below die pushing handle 1516 than the housing of the first embodiment.
- a similar clamping mechanism as that disclosed in the first embodiment secures the housing to the cart handle 1516.
- a battery (not shown) is supported in a casing on a lower rack of the cart powers the device's electrical circuifry and modules as in the first embodiment.
- the device 1500 includes electrical circuitry disposed in die housing 1510 and a retractable dataform reader 1422 which has electrical circuitry which is similar to the electrical circuitry described in the first embodiment and includes a display screen 1514 with an interactive touch sensitive overlay, similar to the display screen 14 in the first embodiment.
- the device 10 furmer includes the retractable dataform reader 1522, which similar to the reader 22 described in die first embodiment and includes a cable recoil mechanism similar to the cable recoil mechanism 138 described in the first embodiment.
- a front surface 1590 of the housing includes a keypad 1591 comprising a plurality of depressible keys. The keys of the keypad function to permit numeric input to the device processor in lieu of the virtual numeric keypad display on the display screen 14 set fordi in the first embodiment.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002258733A CA2258733C (en) | 1996-06-26 | 1997-06-24 | Shopping cart mounted portable data collection device with tethered dataform reader |
AU39580/97A AU716877B2 (en) | 1996-06-26 | 1997-06-24 | Shopping cart mounted portable data collection device with tethered dataform reader |
EP97936941A EP1023689B1 (en) | 1996-06-26 | 1997-06-24 | Shopping cart mounted portable data collection device with tethered dataform reader |
DE69738403T DE69738403T2 (en) | 1996-06-26 | 1997-06-24 | DATA COLLECTION APPARATUS ASSEMBLED ON A PURCHASED VEHICLE ASSOCIATED WITH A DATA CARRIER READER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US08/668,343 US5821512A (en) | 1996-06-26 | 1996-06-26 | Shopping cart mounted portable data collection device with tethered dataform reader |
US08/668,343 | 1996-06-26 |
Publications (2)
Publication Number | Publication Date |
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WO1997050055A1 WO1997050055A1 (en) | 1997-12-31 |
WO1997050055A9 true WO1997050055A9 (en) | 2000-01-06 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/US1997/011207 WO1997050055A1 (en) | 1996-06-26 | 1997-06-24 | Shopping cart mounted portable data collection device with tethered dataform reader |
Country Status (6)
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US (1) | US5821512A (en) |
EP (3) | EP1023689B1 (en) |
AU (1) | AU716877B2 (en) |
CA (1) | CA2258733C (en) |
DE (1) | DE69738403T2 (en) |
WO (1) | WO1997050055A1 (en) |
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- 1997-06-24 EP EP02022518A patent/EP1278166A3/en not_active Withdrawn
- 1997-06-24 EP EP07122550A patent/EP1903517A1/en not_active Withdrawn
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EP1278166A2 (en) | 2003-01-22 |
CA2258733C (en) | 2007-07-31 |
DE69738403T2 (en) | 2008-12-04 |
EP1278166A3 (en) | 2005-04-20 |
AU3958097A (en) | 1998-01-14 |
CA2258733A1 (en) | 1997-12-31 |
EP1903517A1 (en) | 2008-03-26 |
AU716877B2 (en) | 2000-03-09 |
EP1023689B1 (en) | 2007-12-19 |
WO1997050055A1 (en) | 1997-12-31 |
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