WO2002041617A3 - Method and apparatus for simultaneously communicating voice and data in an analog cordless telephone system - Google Patents

Method and apparatus for simultaneously communicating voice and data in an analog cordless telephone system Download PDF

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Publication number
WO2002041617A3
WO2002041617A3 PCT/US2001/045498 US0145498W WO0241617A3 WO 2002041617 A3 WO2002041617 A3 WO 2002041617A3 US 0145498 W US0145498 W US 0145498W WO 0241617 A3 WO0241617 A3 WO 0241617A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
signal
analog
data
digital
cordless telephone
Prior art date
Application number
PCT/US2001/045498
Other languages
French (fr)
Other versions
WO2002041617A2 (en )
Inventor
Wilhelm Ernst Riedl
Hung Chi Lai
Kenneth Russell Mills
Thomas Charles Clifford
Original Assignee
Atlinks Usa Inc
Wilhelm Ernst Riedl
Hung Chi Lai
Kenneth Russell Mills
Thomas Charles Clifford
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

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3483Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72502Cordless telephones with one base station connected to a single line
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems adapted for combination with other electrical systems
    • H04M11/06Simultaneous speech and telegraphic or other data transmission over the same conductors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/57Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Abstract

A method of simultaneously communicating voice and data on the same channel in an analog cordless telephone system involves generating an analog signal from an audible voice signal during a cordless telephone call; generating a frequency shift keying (FSK) signal from digital data having a nominal frequency of about 20 KHz; summing the analog signal and the FSK signal to produce a composite analog and digital signal; modulating a radio frequency (RF) carrier with the composite analog and digital signal to produce a modulated RF carrier; and transmitting the modulated RF carrier. On the receiving end, the method involves receiving hte modulated RF carrier during the call; demodulating the modulated RF carrier to reproduce the composite analog and digital signal; bandpass filtering the composite analog and digital signal to separate the analog signal and the FSK signal from one another; reproducing the audible voice signal from the analog signal; and detecting the digital data from the FSK signal and processing the digital data for display and control.
PCT/US2001/045498 2000-11-16 2001-11-15 Method and apparatus for simultaneously communicating voice and data in an analog cordless telephone system WO2002041617A3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US24894000 true 2000-11-16 2000-11-16
US60/248,940 2000-11-16
US09/955,882 2001-09-19
US09955882 US20030054842A1 (en) 2001-09-19 2001-09-19 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20037006606A KR20030070031A (en) 2000-11-16 2001-11-15 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system
EP20010995310 EP1400098A2 (en) 2000-11-16 2001-11-15 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system
JP2002543215A JP2004527141A (en) 2000-11-16 2001-11-15 Method and apparatus for simultaneously communicating the voice and data in an analog cordless telephone system
CA 2428926 CA2428926A1 (en) 2000-11-16 2001-11-15 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system

Publications (2)

Publication Number Publication Date
WO2002041617A2 true WO2002041617A2 (en) 2002-05-23
WO2002041617A3 true true WO2002041617A3 (en) 2004-01-08

Family

ID=26939698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/045498 WO2002041617A3 (en) 2000-11-16 2001-11-15 Method and apparatus for simultaneously communicating voice and data in an analog cordless telephone system

Country Status (6)

Country Link
EP (1) EP1400098A2 (en)
JP (1) JP2004527141A (en)
KR (1) KR20030070031A (en)
CN (1) CN1539235A (en)
CA (1) CA2428926A1 (en)
WO (1) WO2002041617A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498924B1 (en) * 2002-02-01 2005-07-04 삼성전자주식회사 Method for message transfer service during telephone call service in pstn
US7349365B2 (en) * 2002-10-22 2008-03-25 Mitsubishi Electric Research Laboratories, Inc. Mobile telephone messaging by baseband envelope modulation
WO2005009016A1 (en) * 2003-06-19 2005-01-27 France Telecom Method and device for activating transfer of at least one short message
KR100695089B1 (en) * 2005-06-17 2007-03-14 에스케이 텔레콤주식회사 Method for Mobile Messenger Using SVD and Mobile Communication Terminal Therefor
CN102098378A (en) * 2010-12-14 2011-06-15 深圳桑菲消费通信有限公司 System for realizing point-to-point wireless data transmission of mobile phone, and method therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297203A (en) * 1991-05-29 1994-03-22 Video Technology Engineering, Ltd. Digital cordless telephone apparatus
US5410541A (en) * 1992-05-04 1995-04-25 Ivon International, Inc. System for simultaneous analog and digital communications over an analog channel
EP0790732A2 (en) * 1996-02-14 1997-08-20 International Business Machines Corporation Wireless computer system
US5752195A (en) * 1993-12-30 1998-05-12 Northern Telecom Limited Cordless telephone terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297203A (en) * 1991-05-29 1994-03-22 Video Technology Engineering, Ltd. Digital cordless telephone apparatus
US5410541A (en) * 1992-05-04 1995-04-25 Ivon International, Inc. System for simultaneous analog and digital communications over an analog channel
US5752195A (en) * 1993-12-30 1998-05-12 Northern Telecom Limited Cordless telephone terminal
EP0790732A2 (en) * 1996-02-14 1997-08-20 International Business Machines Corporation Wireless computer system

Also Published As

Publication number Publication date Type
EP1400098A2 (en) 2004-03-24 application
JP2004527141A (en) 2004-09-02 application
KR20030070031A (en) 2003-08-27 application
CN1539235A (en) 2004-10-20 application
WO2002041617A2 (en) 2002-05-23 application
CA2428926A1 (en) 2002-05-23 application

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