MXPA03004265A - Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system. - Google Patents

Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system.

Info

Publication number
MXPA03004265A
MXPA03004265A MXPA03004265A MXPA03004265A MXPA03004265A MX PA03004265 A MXPA03004265 A MX PA03004265A MX PA03004265 A MXPA03004265 A MX PA03004265A MX PA03004265 A MXPA03004265 A MX PA03004265A MX PA03004265 A MXPA03004265 A MX PA03004265A
Authority
MX
Mexico
Prior art keywords
signal
analog
data
cordless telephone
digital
Prior art date
Application number
MXPA03004265A
Other languages
Spanish (es)
Inventor
Thomas Charles Clifford
Original Assignee
Atlinks Usa Inc
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
Priority to US24894000P priority Critical
Priority to US09/955,882 priority patent/US20030054842A1/en
Application filed by Atlinks Usa Inc filed Critical Atlinks Usa Inc
Priority to PCT/US2001/045498 priority patent/WO2002041617A2/en
Publication of MXPA03004265A publication Critical patent/MXPA03004265A/en

Links

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.
MXPA03004265A 2000-11-16 2001-11-15 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system. MXPA03004265A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US24894000P true 2000-11-16 2000-11-16
US09/955,882 US20030054842A1 (en) 2001-09-19 2001-09-19 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system
PCT/US2001/045498 WO2002041617A2 (en) 2000-11-16 2001-11-15 Method and apparatus for simultaneously communicating voice and data in an analog cordless telephone system

Publications (1)

Publication Number Publication Date
MXPA03004265A true MXPA03004265A (en) 2004-12-03

Family

ID=26939698

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03004265A MXPA03004265A (en) 2000-11-16 2001-11-15 Methods and apparatus for simultaneously communicating voice and data in an analog cordless telephone system.

Country Status (8)

Country Link
EP (1) EP1400098A2 (en)
JP (1) JP2004527141A (en)
KR (1) KR20030070031A (en)
CN (1) CN1539235A (en)
AU (1) AU2582502A (en)
CA (1) CA2428926A1 (en)
MX (1) MXPA03004265A (en)
WO (1) WO2002041617A2 (en)

Families Citing this family (6)

* 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
AU2003260610A1 (en) * 2003-06-19 2005-02-04 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
CN107295207A (en) * 2017-06-27 2017-10-24 四川赛科安全技术有限公司 The method for realizing data signal and audio signal simultaneous transmission in fire telephone system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW327488U (en) * 1991-05-29 1998-02-21 Video Tech Eng 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
US5581599A (en) * 1993-12-30 1996-12-03 Northern Telecom Limited Cordless telephone terminal
US6289213B1 (en) * 1996-02-14 2001-09-11 International Business Machines Corporation Computers integrated with a cordless telephone

Also Published As

Publication number Publication date
JP2004527141A (en) 2004-09-02
CA2428926A1 (en) 2002-05-23
EP1400098A2 (en) 2004-03-24
AU2582502A (en) 2002-05-27
WO2002041617A3 (en) 2004-01-08
CN1539235A (en) 2004-10-20
WO2002041617A2 (en) 2002-05-23
KR20030070031A (en) 2003-08-27

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