FR2138791B1 - - Google Patents

Info

Publication number
FR2138791B1
FR2138791B1 FR727218059A FR7218059A FR2138791B1 FR 2138791 B1 FR2138791 B1 FR 2138791B1 FR 727218059 A FR727218059 A FR 727218059A FR 7218059 A FR7218059 A FR 7218059A FR 2138791 B1 FR2138791 B1 FR 2138791B1
Authority
FR
France
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
FR727218059A
Other versions
FR2138791A1 (fr
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2138791A1 publication Critical patent/FR2138791A1/fr
Application granted granted Critical
Publication of FR2138791B1 publication Critical patent/FR2138791B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/04—Channels characterised by the type of signal the signals being represented by different amplitudes or polarities, e.g. quadriplex

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
FR727218059A 1971-05-20 1972-05-19 Expired FR2138791B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14513871A 1971-05-20 1971-05-20

Publications (2)

Publication Number Publication Date
FR2138791A1 FR2138791A1 (fr) 1973-01-05
FR2138791B1 true FR2138791B1 (fr) 1973-07-13

Family

ID=22511761

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727218059A Expired FR2138791B1 (fr) 1971-05-20 1972-05-19

Country Status (9)

Country Link
US (1) US3718767A (fr)
AU (1) AU460693B2 (fr)
BE (1) BE783683A (fr)
CA (1) CA964779A (fr)
DE (1) DE2224353C3 (fr)
ES (1) ES402984A1 (fr)
FR (1) FR2138791B1 (fr)
IT (1) IT955530B (fr)
NL (1) NL7206925A (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869577A (en) * 1972-04-24 1975-03-04 Gen Datacomm Ind Inc Method and apparatus for control signaling in fdm system
US4020289A (en) * 1972-05-15 1977-04-26 Teleplex, Inc. Random access, multiple station communication system
US4009336A (en) * 1975-04-07 1977-02-22 Paradyne Corporation Digital signaling device
USRE31510E (en) 1978-07-20 1984-01-24 Bell Telephone Laboratories, Incorporated Signal multiplexing circuit
US4191857A (en) * 1978-09-28 1980-03-04 Gte Automatic Electric Laboratories Incorporated Digital trunk supervisory decoder multiplexor for ground start or E&M signalling on a common T1 span
JPS57500957A (fr) * 1980-06-25 1982-05-27
US4442540A (en) * 1981-06-04 1984-04-10 Bell Telephone Laboratories, Incorporated Data over voice transmission arrangement
CA1175964A (fr) * 1982-02-22 1984-10-09 John A. Barsellotti Boucle d'abonne a deux fils pour la transmission des paroles et des donnees
US4523311A (en) * 1983-04-11 1985-06-11 At&T Bell Laboratories Simultaneous transmission of speech and data over an analog channel
US4512013A (en) * 1983-04-11 1985-04-16 At&T Bell Laboratories Simultaneous transmission of speech and data over an analog channel
EP0138975A4 (fr) * 1983-04-11 1988-03-30 American Telephone & Telegraph Transmission simultanee de la parole et d'informations par un canal analogique.
FR2574201B1 (fr) * 1984-11-30 1987-04-24 Cit Alcatel Procede et dispositif de telesignalisation pour une liaison de transmission numerique
US6330334B1 (en) 1993-03-15 2001-12-11 Command Audio Corporation Method and system for information dissemination using television signals
JPH09130289A (ja) * 1995-10-31 1997-05-16 Mitsubishi Electric Corp アナログ携帯通信機
US5809472A (en) * 1996-04-03 1998-09-15 Command Audio Corporation Digital audio data transmission system based on the information content of an audio signal
US5815671A (en) * 1996-06-11 1998-09-29 Command Audio Corporation Method and apparatus for encoding and storing audio/video information for subsequent predetermined retrieval
US5956629A (en) * 1996-08-14 1999-09-21 Command Audio Corporation Method and apparatus for transmitter identification and selection for mobile information signal services
US6236675B1 (en) * 1997-03-05 2001-05-22 Paradyne Corporation Pilot tone system and method to allow continuous synchronization in multipoint networks
JP2000224146A (ja) * 1999-02-03 2000-08-11 Oki Electric Ind Co Ltd 多重装置、多重分離装置及び多重通信システム
US7729698B2 (en) * 2001-09-27 2010-06-01 Qualcomm Incorporated Communication system receiver and method for concurrent receiving of multiple channels
US7443915B2 (en) * 2004-11-30 2008-10-28 Tyco Electronics Corporation Method and apparatus for providing out of band communications over structured cabling
JP2009511951A (ja) * 2005-10-05 2009-03-19 エルジー エレクトロニクス インコーポレイティド 信号処理方法及び装置、エンコーディング及びデコーディング方法並びにそのための装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485886A (en) * 1946-02-21 1949-10-25 Us Navy Triple gate
US3261922A (en) * 1962-12-28 1966-07-19 Bell Telephone Labor Inc Fdm data trunking system having a common tdm supervisory channel

Also Published As

Publication number Publication date
DE2224353A1 (de) 1972-11-30
FR2138791A1 (fr) 1973-01-05
CA964779A (en) 1975-03-18
BE783683A (nl) 1972-11-20
AU4170572A (en) 1973-11-08
US3718767A (en) 1973-02-27
AU460693B2 (en) 1975-05-01
DE2224353B2 (de) 1975-02-13
NL7206925A (fr) 1972-11-22
IT955530B (it) 1973-09-29
DE2224353C3 (de) 1975-09-18
ES402984A1 (es) 1975-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse