CA2401939A1 - Improved in-band signaling for data communications over digital wireless telecommunications networks - Google Patents

Improved in-band signaling for data communications over digital wireless telecommunications networks Download PDF

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Publication number
CA2401939A1
CA2401939A1 CA002401939A CA2401939A CA2401939A1 CA 2401939 A1 CA2401939 A1 CA 2401939A1 CA 002401939 A CA002401939 A CA 002401939A CA 2401939 A CA2401939 A CA 2401939A CA 2401939 A1 CA2401939 A1 CA 2401939A1
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Canada
Prior art keywords
tones
voice
digital
digital data
synthesized
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.)
Granted
Application number
CA002401939A
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French (fr)
Other versions
CA2401939C (en
Inventor
Dan A. Preston
Joseph Preston
Robert Leyendecker
Wayne Eatherly
Rod L. Proctor
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Airbiquity Inc
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Individual
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Priority claimed from US09/531,367 external-priority patent/US6690681B1/en
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Publication of CA2401939A1 publication Critical patent/CA2401939A1/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
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0018—Transmission from mobile station to base station
    • G01S5/0027—Transmission from mobile station to base station of actual mobile position, i.e. position determined on mobile
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/10—Details of telephonic subscriber devices including a GPS signal receiver

Abstract

An inband modem for communicating digital data over a voice channel of a telecommunications network comprises:an input for receiving digital data;an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; andan output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;    wherein the synthesized tones are transmitted to avoid interference with actual voice signals transmitted over the same voice channel.

Claims (59)

  1. Claims
  2. 2. An inband modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;
    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; and an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;
    wherein the synthesized tones are transmitted to avoid interference with actual voice signals transmitted over the same voice channel.
  3. 3. An inband signaling modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;
    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; and an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;
    wherein the encoder includes:
    a packet formatter for formatting the digital data into inband signaling packets; and a modulator for converting bits in the inband signaling packets into the synthesized tones.
  4. 4. An inband modem according to claim 3 wherein the packet formatter appends a preamble of bits to the digital data for sacrificing to any encoding circuitry that corrupts initial tones in the inband signaling packets.
  5. 5. An inband modem according to claim 4 wherein the packet formatter appends a postamble of bits to the ends of the inband signaling packets for sacrificing to any encoding circuitry that corrupts the synthesized tones.
  6. 6. An inband modem according to claim 3 wherein the packet formatter appends a sequence of bits at the fronts of the inband signaling packets that precondition the encoding circuitry by simulating generally the sequence of synthesized tones representing the digital data.
  7. 7. An inband signaling modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;
    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; and an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;
    wherein the encoder converts binary "1" bits in the digital data to a first tone having a first frequency within a human voice range and converts binary "0" bits in the digital data to a second tone having a second frequency within the human voice range.
  8. 8. An inband modem according to claim 7 wherein the first and second frequency are both between 400 and 1000 Hertz.
  9. 9. An inband signaling modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;
    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; and an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;
    wherein the encoder generates samples of the digital data at about 8000 samples per second and outputs the encoded audio tones representing the bits of the digital data at a rate of about 100 bits per second.
  10. 10. An inband modem according to claim 9 wherein the sequence of first and second frequencies as a continuous signal with from 5 to 15 milliseconds time periods for each binary bit in the digital data.
  11. 11. An inband modem according to claim 9 wherein the amplitude of the first and second frequencies are about 25 millivolts.
  12. 12. An inband signaling modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;
    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; and an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;
    wherein the encoder is located in a battery pack detachably coupled to a cellular telephone.
  13. 13. An inband modem according to claim 12 including a digital to analog converter located in the battery back that is coupled to the encoder and that outputs analog signals representing the synthesized tones to the cellular telephone.
  14. 14. An inband modem according to claim 13 wherein the analog signals are fed into a same analog to digital converter in the cell phone that processes human voice signals.
  15. 15. An inband signaling modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;
    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones; and an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network;
    wherein the encoder is implemented as software in a cellular telephone processor that also operates as a voice coder.
  16. 16. An inband signaling modem for communicating digital data over a voice channel of a telecommunications network comprising:
    an input for receiving digital data;

    an encoder for converting the digital data into audible tones that synthesize frequency characteristics of human speech and prevent voice encoding circuitry in the telecommunications network from corrupting the digital data represented by the synthesized audio tones;
    an output for outputting the synthesized audio tones to a voice channel of a digital wireless telecommunications network; and a decoder for decoding the synthesized tones transmitted over the voice channel of the telecommunications network.
  17. 17. An inband modem according to claim 16 wherein the decoder includes:
    a first inband filter for detecting signals outside of a synthesized tone frequency band;
    a second out of band filter for detecting signals inside the synthesized tone frequency band; and a comparator that compares the signals detected outside the synthesized tone frequency band with the signals detected inside the synthesized tone frequency band and identifies signals as synthesized tones when the compared value is greater than a selected value.
  18. 18. A modem according to claim 17 wherein the decoder includes an active state that correlates detected synthesized tones with a first audio tone representing a binary "1"
    value and a second audio tone representing a binary "0" value.
  19. 19. A modem according to claim 16 wherein the decoder synchronizes decoding of the synthesized tones by shifting samples of the simulated tones until a maximum power ratio is detected for a digital synchronization pattern transmitted with in the simulated voice data.
  20. 20. A cellular telephone, comprising:
    an audio microphone for converting voice signals into electrical voice signals;
    an analog to digital converter for converting the electrical voice signals into digital voice samples;
    a voice coder for converting the digital voice samples into encoded digital voice signals;
    a transceiver that transmits the encoded digital voice signals over a digital voice channel of a wireless communications network; and an inband signaling modem that converts a digital bit stream into synthesized tones and outputs the synthesized tones to the voice coder, the voice coder encoding the synthesized tone in the same manner as the electrical voice signals before being transmitted over the digital voice channel.
  21. 21. A cellular telephone according to claim 20 including a digital to analog converter coupled between the inband signaling modem and the analog to digital converter.
  22. 22. A cellular telephone according to claim 21 wherein the inband signaling modem and the digital to analog converter are located in a device detachably coupled to the cellular telephone.
  23. 23. A cellular telephone according to claim 20 including a packet formatter that converts the digital bit stream into inband signaling packets that include sacrifice bits that can be corrupted without losing any of the content of the digital bit stream.
  24. 24. A cellular telephone according to claim 23 wherein the sacrifice bits are located at the beginning and at the end of the inband signaling packets.
  25. 25. A cellular telephone according to claim 23 wherein the packet formatter attaches a sequence of preconditioning bits to the inband signaling packets that enable the voice coder to adapt to the frequencies, bit rate and sequence of synthesized tones that represent the digital bit stream.
  26. 26. A cellular telephone according to claim 25 wherein the preconditioning bits area random sequence of "1" and "0" binary bits.
  27. 27. A cellular telephone according to claim 20 including a decoder (16) coupled to the voice coder for detecting and decoding synthesized tones received over the digital voice channel.
  28. 28. A cellular telephone according to claim 27 wherein the decoder includes:
    a first inband filter for filtering signals outside of a synthesized tone frequency band;
    a second out of band filter for filtering signals inside the synthesized tone frequency band; and a comparator that compares the signals outside the synthesized tone frequency band with the signals inside the synthesized audio tone frequency band and identifies signals as synthesized tones when the compared value is greater than a selected value.
  29. 29. A cellular telephone according to claim 28 wherein the decoder includes:
    an active state that correlates detected synthesized tones with a first transform representing a binary "1" value and a second transform representing a binary "0" value;

    a clock recovery state that synchronizes the decoder to the synthesized tones by first shifting samples of the synthesized tones until a maximum power ratio is detected in a digital synchronization pattern in the simulated voice data; and a demodulation state where synthesized audio tones are demodulated back into digital data.
  30. 30. A cellular telephone according to claim 20 wherein the synthesized tones are generated at a first audible frequency to represent binary "1" values and at a second audible frequency to represent binary "0" values, the first and second frequencies being about 100
  31. Hertz apart, each extending for a duration of about 10 milliseconds and generated as one continuous signal.
  32. 32. An inband signaling modem for communicating digital data over a digital voice channel of a wireless communications network, comprising:
    an input that receives voice signals over the voice channel of the wireless communications network;
    a filter that detects synthesized tones representing the digital data and is interleaved with the voice signals transmitted over the digital voice channel, the synthesized tones synthesizing frequency characteristics of human speech and preventing voice encoding circuitry in the wireless telecommunications network from corrupting the digital data represented by the synthesized audio tones; and a demodulator that converts the detected synthesized tones back into the represented digital data;
    wherein the filter includes:
    a first inband filter for detecting signals outside of a synthesized tone frequency band;
    a second out of band filter for detecting signals inside the synthesized tone frequency band; and a comparator that compares the signals detected outside the synthesized tone frequency band with the signals detected inside the synthesized tone frequency band and identifies signals as synthesized tones when the compared value is greater than a selected value.
  33. 33. A modem according to claim 32 wherein the demodulator decoder includes an active state that correlates detected synthesized tones with a first audio tone representing a binary "1" value and a second audio tone representing a binary "0" value.
  34. 34. A modem according to claim 33 wherein the demodulator synchronizes decoding of the synthesized tones by shifting samples of the simulated tones until a maximum power ratio is detected for a digital synchronization pattern transmitted with in the simulated voice data.
  35. 35. A modem according to claim 34 wherein the modem includes an analog to digital converter for receiving signals from an digital to analog converter in a cellular telephone.
  36. 36. A modem according to claim 35 including an encoder for converting the digital bit stream into synthesized tones and outputting the synthesized tones to a voice coder in the cellular telephone.
  37. 37. Software code for communicating digital data over a voice channel of a digital wireless telecommunications network comprising:
    code for forming the digital data into a packet payload in an inband signaling packet;
    code for attaching preconditioning bits to the inband signaling packet that prevent circuitry in the wireless telecommunications network from corrupting the digital data;
    code for converting the bits in the inband signaling packet into a series of voice frequencies that simulate characteristics of human speech; and code for converting the simulated voice frequencies into encoded data transmitted over the digital voice channel of a wireless telecommunications network.
  38. 38. Software code according to claim 37 including code for generating a sequence of bits in a preamble of the inband signaling packet that preview the sequence of bits in the packet payload.
  39. 39. Software according to claim 37 including code that converts the synthesized voice frequencies into analog signals before sending the synthesized voice signals to a voice coder for transmission over the wire telecommunications network.
  40. 40. A method for communicating digital data over the voice channel of a digital wireless telecommunications network comprising:
    receiving a digital bitstream;
    encoding the digital bitstream into a continuous audio signal having different frequency tones for different bit values;
    selecting the frequency tones to represent speech signals that will pass through a voice coder without being corrupted;

    encoding the audio signal into encoded values with a voice coder for transmitting over the digital wireless telecommunications network; and transmitting the encoded values over the digital wireless telecommunications network.
  41. 41. A method according to claim 40 including:
    segmenting the digital bitstream into packet payloads in inband signaling packets;
    and attaching preconditioning bits to the inband signaling packets that prevent circuitry in the digital wireless telecommunications network from corrupting the bits from the digital bitstream.
  42. 42. A cellular telephone, comprising:
    a microphone for converting audio data into analog audio signals;
    voice channel circuitry for encoding signals for transmission over a digital voice channel of a communications network;
    a modem for converting digital data into analog digital data tones; and a switching circuit that selectively connects the microphone to the voice channel circuitry for converting the analog audio signals into encoded audio signals or selectively connecting the modem to the voice channel circuitry for converting the analog digital data tones into encoded digital data tones.
  43. 43. A cellular telephone according to claim 42 including a button that activates the switching circuit to switch between the modem and the microphone.
  44. 44. A cellular telephone according to claim 43 wherein the button and the modem are located on a cell phone battery pack.
  45. 45. A cellular telephone according to claim 44 including a hands free port extending out of the cellular telephone, the hands free port connecting the modem in the battery pack to the switching circuit in the cellular telephone.
  46. 46. A cellular telephone according to claim 43 wherein the button comprises a key on a cellular telephone key pad.
  47. 47. A cellular telephone according to claim 43 including a GPS receiver, the button when pressed connecting the modem to the voice channel circuitry and enabling the GPS receiver in the cellular telephone to collect GPS data, the modem converting the collected GPS data into GPS digital data tones and sending the GPS digital data tones to the voice channel circuitry.
  48. 48. A cellular telephone according to claim 42 including a menu selection screen on the cellular telephone that controls the switching circuit.
  49. 49. A cellular telephone according to claim 42 wherein the voice channel circuitry comprises a voice coder and a transceiver.
  50. 50. A method for transmitting data with a cellular telephone, comprising:
    calling a number with the cellular telephone;
    establishing a voice connection with the called number over a voice channel in the cellular telephone;
    activating a modem in the cellular telephone to convert digital data into data tones;
    and activating a switching circuit in the cellular telephone to connect the modem to the voice channel for transmission of the data tones to the called number.
  51. 51. A method according to claim 50 including depressing a button on the cellular telephone that automatically activates both the modem and activates the switching circuit to connect the activated modem to the voice channel.
  52. 52. A method according to claim 51 including locating the button and the modem in a cellular telephone battery pack.
  53. 53. A method according to claim 52 wherein depressing the button enables a global positioning receiver in the cellular telephone to supply the digital data to the modem.
  54. 54. A method according to claim 50 including selecting a menu option on the cellular telephone to activate the modem and activate the switching circuit to connect the activated modem to the voice channel.
  55. 55. A mobile communication device, comprising:
    means for converting voice data into voice signals;
    means for encoding the voice signals for transmission over a digital audio channel of a communications network;
    means for converting digital data into digital data tones; and means for selectively connecting the voice signals to digital audio channel circuitry for converting the voice signals into encoded voice signals for transmission over the digital audio channel or selectively connecting the digital data tones to the digital audio channel circuitry for converting the digital data tones into encoded digital data tones for transmission over the digital audio channel.
  56. 56. A device according to claim 55 including means for activating the connecting means.
  57. 57. A device according to claim 56 wherein the activating means and the means for converting digital data into digital data tones are located in an external device.
  58. 58. A device according to claim 57 including means for mechanically attaching the external device to the mobile communications device while at the same time electrically coupling the means for converting digital data into digital data tones to the connecting means.
  59. 59. A device according to claim 58 including means for supplying GPS data to the converting means.
CA2401939A 2000-03-21 2000-05-15 Improved in-band signaling for data communications over digital wireless telecommunications networks Expired - Lifetime CA2401939C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/531,367 2000-03-21
US09/531,367 US6690681B1 (en) 1997-05-19 2000-03-21 In-band signaling for data communications over digital wireless telecommunications network
PCT/US2000/013288 WO2001072067A1 (en) 2000-03-21 2000-05-15 Voiceband modem for data communications over digital wireless networks

Publications (2)

Publication Number Publication Date
CA2401939A1 true CA2401939A1 (en) 2001-09-27
CA2401939C CA2401939C (en) 2011-06-21

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CA2401939A Expired - Lifetime CA2401939C (en) 2000-03-21 2000-05-15 Improved in-band signaling for data communications over digital wireless telecommunications networks

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US (1) US6681121B1 (en)
EP (2) EP1273190B1 (en)
JP (1) JP2003533908A (en)
KR (1) KR100726107B1 (en)
CN (1) CN1189050C (en)
AT (1) ATE468726T1 (en)
AU (3) AU5015700A (en)
BR (1) BR0017179A (en)
CA (1) CA2401939C (en)
CY (1) CY1110710T1 (en)
DE (1) DE60044440D1 (en)
DK (1) DK1273190T3 (en)
ES (1) ES2362506T3 (en)
MX (1) MXPA02009179A (en)
PT (1) PT1273190E (en)
WO (1) WO2001072067A1 (en)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US7387253B1 (en) * 1996-09-03 2008-06-17 Hand Held Products, Inc. Optical reader system comprising local host processor and optical reader
US6690681B1 (en) * 1997-05-19 2004-02-10 Airbiquity Inc. In-band signaling for data communications over digital wireless telecommunications network
US6493338B1 (en) * 1997-05-19 2002-12-10 Airbiquity Inc. Multichannel in-band signaling for data communications over digital wireless telecommunications networks
US6560461B1 (en) 1997-08-04 2003-05-06 Mundi Fomukong Authorized location reporting paging system
US7966078B2 (en) 1999-02-01 2011-06-21 Steven Hoffberg Network media appliance system and method
KR100382478B1 (en) * 2000-03-13 2003-05-01 엘지전자 주식회사 Method for data service in communication system
JP2001312326A (en) * 2000-04-28 2001-11-09 Fujitsu Ltd Portable electronic device and battery pack for portable electronic device
GB0011797D0 (en) 2000-05-16 2000-07-05 Yeoman Group Plc Improved vehicle routeing
US6928301B2 (en) * 2000-08-11 2005-08-09 Novatel Wireless, Inc. Distributed architecture wireless RF modem
GB2371945A (en) * 2000-11-17 2002-08-07 Infotech Software Ltd Connection of position determining device and a hand held computer to a radio modem
EP1225742A1 (en) * 2001-01-22 2002-07-24 Inventec Appliances Corp. Internet phone using USB interface to transmit signals
US10298735B2 (en) 2001-04-24 2019-05-21 Northwater Intellectual Property Fund L.P. 2 Method and apparatus for dynamic configuration of a multiprocessor health data system
US7146260B2 (en) 2001-04-24 2006-12-05 Medius, Inc. Method and apparatus for dynamic configuration of multiprocessor system
US7111787B2 (en) 2001-05-15 2006-09-26 Hand Held Products, Inc. Multimode image capturing and decoding optical reader
US7215965B2 (en) 2001-11-01 2007-05-08 Airbiquity Inc. Facility and method for wireless transmission of location data in a voice channel of a digital wireless telecommunications network
GB0203834D0 (en) * 2002-02-19 2002-04-03 Univ Surrey Data transmission
US7178049B2 (en) 2002-04-24 2007-02-13 Medius, Inc. Method for multi-tasking multiple Java virtual machines in a secure environment
US6915145B2 (en) * 2002-06-07 2005-07-05 Sunyen Co., Ltd. Self-rechargeable portable telephone
US7117001B2 (en) * 2003-11-04 2006-10-03 Motorola, Inc. Simultaneous voice and data communication over a wireless network
US20050201419A1 (en) * 2004-03-10 2005-09-15 Nokia Corporation System and associated terminal, method and computer program product for synchronizing distributively presented multimedia objects
KR100621571B1 (en) * 2004-06-25 2006-09-14 삼성전자주식회사 Apparatus and method for interconnecting networks using different protocols
US7337650B1 (en) 2004-11-09 2008-03-04 Medius Inc. System and method for aligning sensors on a vehicle
US7508810B2 (en) 2005-01-31 2009-03-24 Airbiquity Inc. Voice channel control of wireless packet data communications
US8054924B2 (en) * 2005-05-17 2011-11-08 General Motors Llc Data transmission method with phase shift error correction
US8194526B2 (en) * 2005-10-24 2012-06-05 General Motors Llc Method for data communication via a voice channel of a wireless communication network
US8259840B2 (en) * 2005-10-24 2012-09-04 General Motors Llc Data communication via a voice channel of a wireless communication network using discontinuities
US8194779B2 (en) * 2005-10-24 2012-06-05 General Motors Llc Method for data communication via a voice channel of a wireless communication network
US7864717B2 (en) 2006-01-09 2011-01-04 Flextronics Automotive Inc. Modem for communicating data over a voice channel of a communications system
US20070190950A1 (en) * 2006-02-15 2007-08-16 General Motors Corporation Method of configuring voice and data communication over a voice channel
US7924934B2 (en) 2006-04-07 2011-04-12 Airbiquity, Inc. Time diversity voice channel data communications
US8391775B2 (en) * 2007-03-09 2013-03-05 Airbiquity Inc. Mobile digital radio playlist system
US9048784B2 (en) * 2007-04-03 2015-06-02 General Motors Llc Method for data communication via a voice channel of a wireless communication network using continuous signal modulation
US20080259551A1 (en) * 2007-04-20 2008-10-23 Gotive A.S. Modular computing device
US7912149B2 (en) * 2007-05-03 2011-03-22 General Motors Llc Synchronization and segment type detection method for data transmission via an audio communication system
AU2008311749B2 (en) 2007-10-20 2013-01-17 Airbiquity Inc. Wireless in-band signaling with in-vehicle systems
US8369799B2 (en) 2007-10-25 2013-02-05 Echostar Technologies L.L.C. Apparatus, systems and methods to communicate received commands from a receiving device to a mobile device
US8717971B2 (en) 2008-03-31 2014-05-06 Echostar Technologies L.L.C. Systems, methods and apparatus for transmitting data over a voice channel of a wireless telephone network using multiple frequency shift-keying modulation
CN103888473B (en) * 2008-03-31 2017-10-24 艾科星科技公司 For launching the system of data, method and apparatus via the voice channel of wireless telephony network
US8200482B2 (en) 2008-03-31 2012-06-12 Echostar Technologies L.L.C. Systems, methods and apparatus for transmitting data over a voice channel of a telephone network using linear predictive coding based modulation
US8867571B2 (en) 2008-03-31 2014-10-21 Echostar Technologies L.L.C. Systems, methods and apparatus for transmitting data over a voice channel of a wireless telephone network
US20090270110A1 (en) * 2008-05-17 2009-10-29 Sasan Ardalan Portable wireless communication systems
US8958441B2 (en) * 2008-06-05 2015-02-17 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8725502B2 (en) * 2008-06-05 2014-05-13 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8825480B2 (en) 2008-06-05 2014-09-02 Qualcomm Incorporated Apparatus and method of obtaining non-speech data embedded in vocoder packet
US8964788B2 (en) 2008-06-05 2015-02-24 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8503517B2 (en) 2008-06-05 2013-08-06 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US9083521B2 (en) * 2008-06-05 2015-07-14 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
CN102239663A (en) * 2008-08-18 2011-11-09 兰吉特·苏迪埃·瓦德卡尔 A system for monitoring, managing and controlling dispersed networks
US7983310B2 (en) 2008-09-15 2011-07-19 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US8594138B2 (en) 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
WO2010053803A1 (en) * 2008-10-28 2010-05-14 Airbiquity Inc. Purchase of a piece of music being played on a radio in a vehicle
ES2709675T3 (en) * 2009-03-03 2019-04-17 Airbiquity Inc On-board system control (IVS) for emergency data communications
KR101047706B1 (en) * 2009-04-21 2011-07-08 현대자동차주식회사 How to send and receive data through voice channel
US8073440B2 (en) 2009-04-27 2011-12-06 Airbiquity, Inc. Automatic gain control in a personal navigation device
US9358924B1 (en) 2009-05-08 2016-06-07 Eagle Harbor Holdings, Llc System and method for modeling advanced automotive safety systems
US8417490B1 (en) 2009-05-11 2013-04-09 Eagle Harbor Holdings, Llc System and method for the configuration of an automotive vehicle with modeled sensors
US8855100B2 (en) 2009-06-16 2014-10-07 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US8743864B2 (en) 2009-06-16 2014-06-03 Qualcomm Incorporated System and method for supporting higher-layer protocol messaging in an in-band modem
US8418039B2 (en) 2009-08-03 2013-04-09 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
KR101534866B1 (en) * 2009-09-18 2015-07-07 현대자동차주식회사 Method for communicating data over voice channel
US8340656B2 (en) 2009-10-07 2012-12-25 Echostar Technologies L.L.C. Systems and methods for synchronizing data transmission over a voice channel of a telephone network
US8838332B2 (en) 2009-10-15 2014-09-16 Airbiquity Inc. Centralized management of motor vehicle software applications and services
US8831823B2 (en) 2009-10-15 2014-09-09 Airbiquity Inc. Centralized management of motor vehicle software applications and services
US9370029B2 (en) 2009-10-15 2016-06-14 Airbiquity Inc. Efficient headunit communication integration
US8942888B2 (en) 2009-10-15 2015-01-27 Airbiquity Inc. Extensible scheme for operating vehicle head unit as extended interface for mobile device
US9002574B2 (en) 2009-10-15 2015-04-07 Airbiquity Inc. Mobile integration platform (MIP) integrated handset application proxy (HAP)
US8249865B2 (en) 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
DE102009058175A1 (en) * 2009-12-15 2011-06-16 Deutsche Telekom Ag Method for transmission of auxiliary information e.g. position of telephoner within mobile radio network, involves modifying protocol that is relevant to used services such that information is transmitted within utilized services
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem
US8886392B1 (en) 2011-12-21 2014-11-11 Intellectual Ventures Fund 79 Llc Methods, devices, and mediums associated with managing vehicle maintenance activities
CN102625074B (en) * 2012-03-19 2014-11-19 北京汉邦高科数字技术股份有限公司 Method for transmitting intelligent analyzed data by aid of HD-SDI (high-definition serial digital interface) camera
EP2859464B1 (en) 2012-06-08 2020-09-16 Airbiquity, Inc. Assessment of electronic sensor data to remotely identify a motor vehicle and monitor driver behavior
US8924611B2 (en) 2012-06-26 2014-12-30 Intel Corporation Providing a serial protocol for a bidirectional serial interconnect
US9710406B2 (en) 2014-12-15 2017-07-18 Intel Corporation Data transmission using PCIe protocol via USB port
KR102141497B1 (en) * 2018-07-30 2020-08-05 엘아이지넥스원 주식회사 Transmitting/receiving apparatus using wireless communications and voice signal processing system using the same
RU210735U1 (en) * 2020-10-02 2022-04-28 Общество с ограниченной ответственностью «ПРОМИНВЕСТ» RADIO MODEM ROUTER
CN114401474B (en) * 2022-01-13 2024-03-01 北京中电慧声科技有限公司 Digital network audio processor

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8814456D0 (en) 1988-06-17 1988-08-17 Cleveland Innovative Technolog Road vehicle locating system
US5726984A (en) 1989-01-31 1998-03-10 Norand Corporation Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
US5043736B1 (en) 1990-07-27 1994-09-06 Cae Link Corp Cellular position location system
US5201071A (en) 1990-09-26 1993-04-06 Rockwell International Corporation Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power
US5225842A (en) 1991-05-09 1993-07-06 Navsys Corporation Vehicle tracking system employing global positioning system (gps) satellites
FR2684507B1 (en) * 1991-11-29 1994-09-30 Sagem SEMI-DUPLEX MODEM FOR GSM RADIO TELEPHONE NETWORK.
US5235633A (en) 1991-12-26 1993-08-10 Everett Dennison Cellular telephone system that uses position of a mobile unit to make call management decisions
US5546445A (en) 1991-12-26 1996-08-13 Dennison; Everett Cellular telephone system that uses position of a mobile unit to make call management decisions
US5539810A (en) * 1992-01-27 1996-07-23 Highwaymaster Communications, Inc. Data messaging in a communications network
US5410739A (en) 1992-09-29 1995-04-25 The Titan Corporation Variable data message communication over voice communication channel
US5726893A (en) * 1992-12-17 1998-03-10 Stanford Telecommunications, Inc. Cellular telephone with voice-in-data modem
US5365450A (en) 1992-12-17 1994-11-15 Stanford Telecommunications, Inc. Hybrid GPS/data line unit for rapid, precise, and robust position determination
US5587715A (en) 1993-03-19 1996-12-24 Gps Mobile, Inc. Method and apparatus for tracking a moving object
US5825820A (en) 1993-06-25 1998-10-20 Matsushita Electric Industrial Co., Ltd. Waveform shaping method and equipment
US5388147A (en) 1993-08-30 1995-02-07 At&T Corp. Cellular telecommunication switching system for providing public emergency call location information
US5519403A (en) 1993-11-29 1996-05-21 Motorola, Inc. Global positioning system communications multi-interface
US5479480A (en) * 1993-12-30 1995-12-26 At&T Corp. Dual mode cellular modem
US5555286A (en) 1994-01-31 1996-09-10 Tendler Technologies, Inc. Cellular phone based automatic emergency vessel/vehicle location system
AU2114895A (en) 1994-02-07 1995-08-21 Harold Ii Pace Mobile location reporting apparatus and methods
US5422816A (en) 1994-02-22 1995-06-06 Trimble Navigation Limited Portable personal navigation tracking system
US5483549A (en) 1994-03-04 1996-01-09 Stanford Telecommunications, Inc. Receiver having for charge-coupled-device based receiver signal processing
JPH088983A (en) 1994-06-15 1996-01-12 Fujitsu Ltd Inter-device digital signal transmitting method, digital signal transmitter/receiver, digital signal transmitter and digital signal receiver
US5630206A (en) 1994-08-11 1997-05-13 Stanford Telecommunications, Inc. Position enhanced cellular telephone system
US5786789A (en) * 1994-11-14 1998-07-28 Trimble Navigation Limited GPS and cellphone unit having add-on modules
US6226529B1 (en) * 1994-12-08 2001-05-01 Itt Manufacturing Enterprises, Inc. System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS)
US5517683A (en) * 1995-01-18 1996-05-14 Cycomm Corporation Conformant compact portable cellular phone case system and connector
US5797091A (en) 1995-03-07 1998-08-18 Xypoint Corporation Personal communication system and method of use
US5572204A (en) 1995-04-10 1996-11-05 Ford Motor Company Vehicular emergency message system
US5686910A (en) 1995-04-10 1997-11-11 Ford Motor Company Vehicular emergency message system with automatic periodic call-in
US5687215A (en) 1995-04-10 1997-11-11 Ford Motor Company Vehicular emergency message system
US6002363A (en) 1996-03-08 1999-12-14 Snaptrack, Inc. Combined GPS positioning system and communications system utilizing shared circuitry
US5945944A (en) 1996-03-08 1999-08-31 Snaptrack, Inc. Method and apparatus for determining time for GPS receivers
US5978676A (en) * 1996-11-15 1999-11-02 Telefonaktiebolaget L/M Ericsson (Publ) Inband signal converter, and associated method, for a digital communication system
US5812087A (en) 1997-02-03 1998-09-22 Snaptrack, Inc. Method and apparatus for satellite positioning system based time measurement
US5970130A (en) 1997-02-26 1999-10-19 Dynamic Telcom Engineering, L.L.C. Independent central office which provides local and long distance calling services to new residential and commercial developments
CA2260762C (en) * 1997-05-19 2002-08-06 Integrated Data Communications, Inc. System and method to communicate time stamped, 3-axis geo-position data within telecommunication networks
US6140956A (en) 1997-06-25 2000-10-31 Cellutrac, Inc. Vehicle tracking and security system incorporating simultaneous voice and data communication
US6044257A (en) * 1998-03-19 2000-03-28 American Secure Care, Llc Panic button phone
US6112084A (en) * 1998-03-24 2000-08-29 Telefonaktiebolaget Lm Ericsson Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork
BRPI9913197B1 (en) * 1998-08-21 2015-10-20 Motorola Mobility Llc Method and apparatus for controlling vocoder bypass operation using band signaling

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