CA1021458A - Timing system for optically scanned documents - Google Patents

Timing system for optically scanned documents

Info

Publication number
CA1021458A
CA1021458A CA204,872A CA204872A CA1021458A CA 1021458 A CA1021458 A CA 1021458A CA 204872 A CA204872 A CA 204872A CA 1021458 A CA1021458 A CA 1021458A
Authority
CA
Canada
Prior art keywords
timing system
optically scanned
scanned documents
documents
optically
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA204,872A
Other versions
CA204872S (en
Inventor
John V. Mcmillin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Learning Corp
Original Assignee
Westinghouse Learning Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Learning Corp filed Critical Westinghouse Learning Corp
Application granted granted Critical
Publication of CA1021458A publication Critical patent/CA1021458A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0163—Synchronisation of sensing process by means of additional timing marks on the record-carrier
CA204,872A 1973-08-03 1974-07-16 Timing system for optically scanned documents Expired CA1021458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00385393A US3831009A (en) 1973-08-03 1973-08-03 Timing system for optically scanned documents

Publications (1)

Publication Number Publication Date
CA1021458A true CA1021458A (en) 1977-11-22

Family

ID=23521204

Family Applications (1)

Application Number Title Priority Date Filing Date
CA204,872A Expired CA1021458A (en) 1973-08-03 1974-07-16 Timing system for optically scanned documents

Country Status (4)

Country Link
US (1) US3831009A (en)
JP (1) JPS5046048A (en)
CA (1) CA1021458A (en)
GB (1) GB1481973A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143355A (en) * 1977-08-29 1979-03-06 Signature Guardian Systems, Inc. Character recognition system
US4442347A (en) * 1981-08-31 1984-04-10 Bell & Howell Company Indicia reading method and apparatus
US4479050A (en) * 1981-12-28 1984-10-23 Bell And Howell Company Sensor alignment circuit and method of operation
US4809351A (en) * 1985-06-07 1989-02-28 Saba Technologies, Inc. Optical character reader
US5023922A (en) * 1985-06-07 1991-06-11 Soricon Corporation Optical character reader
US5184003A (en) * 1989-12-04 1993-02-02 National Computer Systems, Inc. Scannable form having a control mark column with encoded data marks
US5367581A (en) * 1993-03-31 1994-11-22 Direct Data Systems Magnetic reader with read head biased against document by resilient deflection of circuit board
US5479532A (en) * 1993-03-31 1995-12-26 Direct Data Systems Apparatus for reading magnetic information from a document having a read head mounted on a circuit board portion permitting resilient deflection
US5517577A (en) * 1994-02-25 1996-05-14 Soricon Corporation Self aligning, low power character reading apparatus
US5524063A (en) * 1994-02-25 1996-06-04 Soricon, Inc. Character reading apparatus
US5665974A (en) * 1995-11-16 1997-09-09 The Boeing Company Self-monitoring optical encoder for wavelength division multiplexing optical sensors
JP4210372B2 (en) * 1998-11-13 2009-01-14 エヌシーアール インターナショナル インコーポレイテッド Magnetic code reader and magnetic code reading method
US20040202992A1 (en) * 2003-04-14 2004-10-14 Scott Moulthrop Electronic test answer record quality assurance system and method
CN112861713B (en) * 2021-02-06 2022-10-25 贵州博汇云技术开发有限公司 Large-scale drawing multi-piece local amplification contrast analysis system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627990A (en) * 1960-02-29 1971-12-14 Addressograph Multigraph Sensing mechanisms
US3474232A (en) * 1965-06-30 1969-10-21 Honeywell Inc Data processing device and method
US3496342A (en) * 1966-08-30 1970-02-17 Gen Electric Card reader logic
US3752961A (en) * 1971-02-05 1973-08-14 B Torrey Circular track coded pattern reader
US3708655A (en) * 1971-04-30 1973-01-02 Rca Corp Article identification apparatus
JPS5325213B2 (en) * 1971-10-29 1978-07-25
JPS5248772B2 (en) * 1971-11-05 1977-12-12

Also Published As

Publication number Publication date
JPS5046048A (en) 1975-04-24
GB1481973A (en) 1977-08-03
US3831009A (en) 1974-08-20
AU7139274A (en) 1976-01-22

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