WO2010070526A1 - A location estimation and data transmission method - Google Patents

A location estimation and data transmission method Download PDF

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Publication number
WO2010070526A1
WO2010070526A1 PCT/IB2009/055564 IB2009055564W WO2010070526A1 WO 2010070526 A1 WO2010070526 A1 WO 2010070526A1 IB 2009055564 W IB2009055564 W IB 2009055564W WO 2010070526 A1 WO2010070526 A1 WO 2010070526A1
Authority
WO
WIPO (PCT)
Prior art keywords
location
information
transmission method
server
data transmission
Prior art date
Application number
PCT/IB2009/055564
Other languages
French (fr)
Inventor
Gunes Kurt
Coskun Sahin
Original Assignee
Turkcell Iletisim Hizmetleri Anonim Sirketi
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 Turkcell Iletisim Hizmetleri Anonim Sirketi filed Critical Turkcell Iletisim Hizmetleri Anonim Sirketi
Priority to SE1150714A priority Critical patent/SE1150714A1/en
Publication of WO2010070526A1 publication Critical patent/WO2010070526A1/en
Priority to FI20115760A priority patent/FI123398B/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/024—Guidance services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Definitions

  • the present invention relates to a location estimation and data transmission method enabling to embed location and various information in the audio output from an audio broadcasting device and then to use this information in different areas.
  • Audio watermarking is a data hiding technique that enables embedding data into the audio signal. Information can be embedded into and extracted from the host signal.
  • the cover signal is the primary communication signal and may be binary, multi valued, analog waveform, or in the form of any other type of primary communication signal.
  • security strength indication, location tracking, intrusion detection and transmission of non-security information are carried out.
  • watermarks are embedded into the data output from the receiver unit in order to perform location estimation. For this, a sensor is incorporated into the receiver unit.
  • location estimation systems usually methods based on motion parameters of radio waves are employed. For example, location of the user is estimated by computing the angle of incidence or amplitude of the signal. Level of complexity increases in these types of methods since it is required to find the values of the mentioned parameters.
  • the objective of the present invention is to realize a location estimation and data transmission method in a wireless system wherein locations of the points of interest (POI) are determined by the watermarks incorporated to the audio signal in the transmitter without requiring an additional hardware and various applications are offered to the user according to the determined location.
  • Another objective of the invention is to realize a location estimation and data transmission method wherein various news such as campaign information are communicated to the subscribers who are in the vicinity of the point of interest.
  • a further objective of the present invention is to realize a location estimation and data transmission method allowing to monitor customer profiles of the subscribers at the points of interest in order to improve the wireless services provided by the service provider.
  • Figure 1 is the schematic block diagram of the location estimation and data transmission method.
  • At least one transmitter (1), at least one subscriber station (5) comprising a receiver (2) and at least one server (3) are used in the inventive location estimation and data transmission method. Communication between the server (3) and the receiver (2) is provided by means of a wireless network (4).
  • the transmitter (1) is located at the points of interest (POI). Points of interest are the places or regions where location estimation will be carried out. Points of interest are for example museums, restaurant chains, hospitals, cinemas or locations with specific functions that enable audio broadcast, such as vicinity of a television or radio. In order for a place or region to be a point of interest, it is sufficient to have a device like a speaker at that place or region that is capable of audio broadcasting. Thus, points of interest can be fixed or mobile.
  • the receiver (2) is a sensor capable of detecting audio and it is located in a mobile subscriber station (5).
  • the mobile subscriber station (5) is a mobile telephone or any device comprising an audio sensor such as a microphone, a watermark decoder, a controller and a screen.
  • the server (3) includes various application information such as service provider's campaigns and services offered and the user information of the subscriber of the service provider.
  • the location information of the points of interest is integrated as a watermark into an audio signal to be output from a speaker or similar audio source broadcasting at the point of interest (POI).
  • the subscriber stations (5) in turn estimate the location of the points of interest (POI) by decoding the watermarks by means of the audio watermark decoders.
  • data reception process is automatically triggered, and when the transmitter (1) starts to broadcast, the receiver (2) automatically detects the transmitted data. In case the data reception process starts automatically, the user can turn off the receiver (2) if she/he desires.
  • the receiver (2) when the transmitter (1) starts to broadcast, the receiver (2) automatically detects the transmitted data, but an alert is given in the user screen prompting user confirmation to display the said information.
  • an alert is given in the user's mobile subscriber station (5) screen informing that the point of interest (POI) information are received, the data reception process begins if the user accepts the transmitted information.
  • POI point of interest
  • the receiver (2) receives the audio comprising the watermark message and transmits it to the controller in the subscriber station (5).
  • the watermark message is decoded by means of the decoder and the location information is sorted.
  • the subscriber station (5) sends this information to the wireless network (4).
  • the location information is transmitted to the server (3) by the wireless access network (4).
  • the server (3) stores the said location information.
  • the said location information can then be used in instant position location services concerning the points of interest (POI) such as social networking, mapping or navigation services.
  • POI points of interest
  • the server (3) keeps the statistics of the times that the users are present at the same location within a specific period of time, in accordance with the location information received from the subscriber stations (5), whereby discovering social tendencies and habits of the users.
  • the service provider organizes campaigns according to the user habits.
  • the application can also be used in location estimation applications such as in home or area security or disaster relief efforts. For example, following a disaster, when a mobile transmitter (1) starts broadcasting, the receivers (2) in the vicinity of the transmitter (1) automatically detect the transmitted data. If this data is transmitted to the server (3), information related to the number of receivers affected by the disaster and the locations of these receivers are attained.
  • the server (3) when the location information is transmitted to the server (3), the server (3) sends various information to the subscriber station (5) related to the location information.
  • the information is output from the server (3) and transmitted to the subscriber station (5) through the wireless network (4).
  • the location information when the location information is delivered to the server (3), the current campaign information provided by the service provider concerning the location at which the user is located or about which the user seeks to find out information can be transferred to the user's subscriber station (5).
  • the user can inform the server (3) of her/his location and request information from the server (3) related to the restaurant or cinema, shopping mall, etc. near her/his location and the server (3) transmits these information to the subscriber station (5).
  • the point of interest (POI) is the vicinity of a television set or radio.
  • the time information is also transmitted to the server (3) when transmitting the location information of the point of interest (POI).
  • time information is also incorporated to the audio signal as a watermark.
  • a media content sample such as music, video is sent to the subscriber station (5) providing the user with options such as purchasing the entire media content sent to him or using it for trial purposes.
  • the audio segment comprising the location and audio information recorded.
  • the information related to the times that the said segment e.g. a video or audio file
  • the server (3) Thereby areas of interest of the subscriber are discovered.
  • the location estimation resolution in the invention is directly proportionate to the number of transmitters to be used in the system. Due to this feature, the resolution can be enhanced or decreased in line with the system and application requirements.
  • determining and processing the parameter information of the audio wave as carried out in the prior art is not required and information can be accessed by the help of only a single watermark sensor.
  • the inventive location estimation and data transmission method enables to embed location and various information output from any audio broadcasting device and then to use these information in different fields.
  • the mobile station used in the invention is a device accompanying the user and comprising an audio receiver (2).
  • An additional hardware is incorporated to the mobile station or transmitter (1) in order to carry out location estimation and to send information to the user. This has provided cost reduction when forming location tracking systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The present invention relates to a location estimation and data transmission method wherein the location information of the points of interest (POI) is embedded as a watermark into an audio signal to be output from a speaker or similar audio source broadcasting at the point of interest (POI), and the subscriber stations (5) estimate the location of the points of interest (POI) by decoding the watermarks by means of the audio watermark decoders.

Description

A LOCATION ESTIMATION AND DATA TRANSMISSION METHOD
Field of the Invention
The present invention relates to a location estimation and data transmission method enabling to embed location and various information in the audio output from an audio broadcasting device and then to use this information in different areas.
Prior Art
There is a wide variety of methods in the state of the art for location estimation of a person or a place. Some of these methods are RF (radio frequency) based systems or applications carried out via various sensors.
One of the applications that are carried out via sensors is embedding the audio watermark into the audio and then detecting of this watermark by means of the sensor. Audio watermarking is a data hiding technique that enables embedding data into the audio signal. Information can be embedded into and extracted from the host signal.
One of the state of the art watermarking applications is disclosed in the international patent document WO2004077699. In this application, location of a mobile station is detected by the help of watermarking. A connection transmission signal is watermarked in the system via the repeater fast frequency modulation. A mobile station identifies this fast frequency watermark. In this application, location information is calculated from the time difference in the data added to the repeater, by using A-GPS (Assisted Global Positioning System) or AFTL (Advanced Forward Link Trilateration). Another audio watermarking application in the state of the art is disclosed in the United States patent document US2005/0226421. The watermarks used in the said application are small amounts of auxiliary data embedded in the cover signal. The cover signal is the primary communication signal and may be binary, multi valued, analog waveform, or in the form of any other type of primary communication signal. In this application, security strength indication, location tracking, intrusion detection and transmission of non-security information are carried out. In the said application, watermarks are embedded into the data output from the receiver unit in order to perform location estimation. For this, a sensor is incorporated into the receiver unit.
In the state of the art applications, when a watermark is added into any communication signal, hardware such as sensors are incorporated to the receiver units or software changes are made in the receiver units for detection of these watermarks. This causes increase in cost.
Moreover, in the said location estimation systems, usually methods based on motion parameters of radio waves are employed. For example, location of the user is estimated by computing the angle of incidence or amplitude of the signal. Level of complexity increases in these types of methods since it is required to find the values of the mentioned parameters.
Summary of the Invention
The objective of the present invention is to realize a location estimation and data transmission method in a wireless system wherein locations of the points of interest (POI) are determined by the watermarks incorporated to the audio signal in the transmitter without requiring an additional hardware and various applications are offered to the user according to the determined location. Another objective of the invention is to realize a location estimation and data transmission method wherein various news such as campaign information are communicated to the subscribers who are in the vicinity of the point of interest.
A further objective of the present invention is to realize a location estimation and data transmission method allowing to monitor customer profiles of the subscribers at the points of interest in order to improve the wireless services provided by the service provider.
Detailed Description of the Invention
The location estimation and data transmission method realized to fulfill the objective of the present invention is illustrated in the accompanying figure wherein,
Figure 1 is the schematic block diagram of the location estimation and data transmission method.
The parts in the figure are each given a reference numeral where the numerals refer to the following:
1. Transmitter
2. Receiver
3. Server 4. Wireless network
5. Subscriber station
At least one transmitter (1), at least one subscriber station (5) comprising a receiver (2) and at least one server (3) are used in the inventive location estimation and data transmission method. Communication between the server (3) and the receiver (2) is provided by means of a wireless network (4). The transmitter (1) is located at the points of interest (POI). Points of interest are the places or regions where location estimation will be carried out. Points of interest are for example museums, restaurant chains, hospitals, cinemas or locations with specific functions that enable audio broadcast, such as vicinity of a television or radio. In order for a place or region to be a point of interest, it is sufficient to have a device like a speaker at that place or region that is capable of audio broadcasting. Thus, points of interest can be fixed or mobile.
The receiver (2) is a sensor capable of detecting audio and it is located in a mobile subscriber station (5). The mobile subscriber station (5) is a mobile telephone or any device comprising an audio sensor such as a microphone, a watermark decoder, a controller and a screen.
The server (3) includes various application information such as service provider's campaigns and services offered and the user information of the subscriber of the service provider.
In the present invention, the location information of the points of interest (POI) is integrated as a watermark into an audio signal to be output from a speaker or similar audio source broadcasting at the point of interest (POI). The subscriber stations (5) in turn estimate the location of the points of interest (POI) by decoding the watermarks by means of the audio watermark decoders.
When the user desires to find out the location of the point of interest (POI) which she/he is in the vicinity of and/or the location of the other points of interest (POI), she/he commences the data reception process by turning on the receiver (2) and prompts for the location based service information provided by the transmitter (1).
In one embodiment of the invention, data reception process is automatically triggered, and when the transmitter (1) starts to broadcast, the receiver (2) automatically detects the transmitted data. In case the data reception process starts automatically, the user can turn off the receiver (2) if she/he desires.
In another embodiment of the invention, when the transmitter (1) starts to broadcast, the receiver (2) automatically detects the transmitted data, but an alert is given in the user screen prompting user confirmation to display the said information. When an alert is given in the user's mobile subscriber station (5) screen informing that the point of interest (POI) information are received, the data reception process begins if the user accepts the transmitted information.
The receiver (2) receives the audio comprising the watermark message and transmits it to the controller in the subscriber station (5). In the controller, the watermark message is decoded by means of the decoder and the location information is sorted. Then the subscriber station (5) sends this information to the wireless network (4). The location information is transmitted to the server (3) by the wireless access network (4).
The server (3) stores the said location information. The said location information can then be used in instant position location services concerning the points of interest (POI) such as social networking, mapping or navigation services. In one embodiment, the server (3) keeps the statistics of the times that the users are present at the same location within a specific period of time, in accordance with the location information received from the subscriber stations (5), whereby discovering social tendencies and habits of the users. The service provider organizes campaigns according to the user habits.
The application can also be used in location estimation applications such as in home or area security or disaster relief efforts. For example, following a disaster, when a mobile transmitter (1) starts broadcasting, the receivers (2) in the vicinity of the transmitter (1) automatically detect the transmitted data. If this data is transmitted to the server (3), information related to the number of receivers affected by the disaster and the locations of these receivers are attained.
In a further embodiment of the invention, when the location information is transmitted to the server (3), the server (3) sends various information to the subscriber station (5) related to the location information. The information is output from the server (3) and transmitted to the subscriber station (5) through the wireless network (4). For example, when the location information is delivered to the server (3), the current campaign information provided by the service provider concerning the location at which the user is located or about which the user seeks to find out information can be transferred to the user's subscriber station (5). As another alternative, the user can inform the server (3) of her/his location and request information from the server (3) related to the restaurant or cinema, shopping mall, etc. near her/his location and the server (3) transmits these information to the subscriber station (5).
In another embodiment of the invention, the point of interest (POI) is the vicinity of a television set or radio. In this embodiment, after the location information of the point of interest (POI) is obtained, the time information is also transmitted to the server (3) when transmitting the location information of the point of interest (POI). In this type of application, in addition to the location information, time information is also incorporated to the audio signal as a watermark. In this embodiment, a media content sample such as music, video is sent to the subscriber station (5) providing the user with options such as purchasing the entire media content sent to him or using it for trial purposes. In this embodiment, in addition to the capability of receiving the transmitted signals in real time, it is also possible to have the audio segment comprising the location and audio information recorded. In this type of cases, the information related to the times that the said segment (e.g. a video or audio file) is listened to or played can be collected in the server (3). Thereby areas of interest of the subscriber are discovered. The location estimation resolution in the invention is directly proportionate to the number of transmitters to be used in the system. Due to this feature, the resolution can be enhanced or decreased in line with the system and application requirements.
With the present invention, determining and processing the parameter information of the audio wave as carried out in the prior art is not required and information can be accessed by the help of only a single watermark sensor.
The inventive location estimation and data transmission method enables to embed location and various information output from any audio broadcasting device and then to use these information in different fields. The mobile station used in the invention is a device accompanying the user and comprising an audio receiver (2). An additional hardware is incorporated to the mobile station or transmitter (1) in order to carry out location estimation and to send information to the user. This has provided cost reduction when forming location tracking systems.
It is possible to develop a wide variety of embodiments of the inventive location estimation and data transmission method. The invention cannot be limited to the examples described herein and it is essentially according to the claims.

Claims

1. A location estimation and data transmission method in which at least one transmitter (1), at least one subscriber station (5) comprising a receiver (2) and at least one server (3) are used, and the communication between the server (3) and the receiver (2) is provided by means of a wireless network (4); and wherein the location information of the points of interest (POI) is integrated as a watermark into an audio signal to be output from a speaker or similar audio source broadcasting at the point of interest (POI), the subscriber stations (5) estimate the location of the points of interest (POI) by decoding the watermarks by means of the audio watermark decoders.
2. A location estimation and data transmission method according to
Claim 1, wherein when the user desires to find out the location of the point of interest (POI) which she/he is in the vicinity of and/or the location of the other points of interest (POI), she/he commences the data reception process by turning on the receiver (2) and prompts for the location based service information provided by the transmitter (1).
3. A location estimation and data transmission method according to Claim 1, wherein, when the transmitter (1) starts to broadcast, the receiver (2) automatically detects the transmitted data and displays them on the subscriber station (5) screen.
4. A location estimation and data transmission method according to Claim 1, wherein, when the transmitter (1) starts to broadcast, the receiver (2) automatically detects the transmitted data and an alert is given in the user screen prompting user confirmation to display the said information.
5. A location estimation and data transmission method according to any of the preceding claims, wherein, after the location information is detected by the subscriber station (5), the subscriber station (5) transmits this information to the server (3) through the wireless network (4) and the server (3) stores the location information.
6. A location estimation and data transmission method according to Claim 5, wherein, the location information in the server is used in instant position location services concerning the points of interest
(POI) such as social networking, mapping or navigation services, and the information related to the concerned service is transferred to the user's subscriber station (5).
7. A location estimation and data transmission method according to
Claim 6, wherein the server (3) keeps the statistics of the times that the users are present at the same location within a specific period of time, in accordance with the location information received from the subscriber stations (5).
8. A location estimation and data transmission method according to Claim 6 or 7, wherein, when the location information is transmitted to the server (3), the current campaign information provided by the service provider concerning the location at which the user is located or about which the user seeks to find out information is sent to the user's subscriber station (5).
9. A location estimation and data transmission method according to Claim 6, wherein, when the location information is transmitted to the server (3), information related to places such as restaurant, cinema or shopping mall near the location of the user is sent to the user's subscriber station (5).
10. A location estimation and data transmission method according to any of Claims 1 to 4, wherein, after the location information of the point of interest (POI) is detected at the subscriber station (5), in addition to the location information of the point of interest (POI), time information is also transmitted to the server (3) as a watermark, and wherein the server (3) sends data to the subscriber station (5) screen depending on the time and location information.
11. A location estimation and data transmission method according to Claim 10, characterized in that the audio segment comprising the location, time and audio information is recorded in the server (3) and a statistics is kept related to the times that the said segment is listened to or played by the concerned subscriber.
I O
PCT/IB2009/055564 2008-12-19 2009-12-08 A location estimation and data transmission method WO2010070526A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE1150714A SE1150714A1 (en) 2008-12-19 2009-12-08 Method for location estimation and data transfer
FI20115760A FI123398B (en) 2008-12-19 2011-07-19 Location estimation and data transfer method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2008/09675 2008-12-19
TR2008/09675A TR200809675A1 (en) 2008-12-19 2008-12-19 Location detection and information transmission method

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SE (1) SE1150714A1 (en)
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US10254383B2 (en) 2013-12-06 2019-04-09 Digimarc Corporation Mobile device indoor navigation
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FI20115760A (en) 2011-07-19
SE1150714A1 (en) 2011-09-15
FI123398B (en) 2013-03-28
TR200809675A1 (en) 2010-07-21

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