ATE145311T1 - Verfahren und anordnung für multiplexübertragung von dtmf-signalen - Google Patents

Verfahren und anordnung für multiplexübertragung von dtmf-signalen

Info

Publication number
ATE145311T1
ATE145311T1 AT92402619T AT92402619T ATE145311T1 AT E145311 T1 ATE145311 T1 AT E145311T1 AT 92402619 T AT92402619 T AT 92402619T AT 92402619 T AT92402619 T AT 92402619T AT E145311 T1 ATE145311 T1 AT E145311T1
Authority
AT
Austria
Prior art keywords
frequency
numerical
speech
voice
frames
Prior art date
Application number
AT92402619T
Other languages
English (en)
Inventor
Michel Mouly
Original Assignee
Matra Communication
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 Matra Communication filed Critical Matra Communication
Application granted granted Critical
Publication of ATE145311T1 publication Critical patent/ATE145311T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Telephonic Communication Services (AREA)
AT92402619T 1991-09-27 1992-09-24 Verfahren und anordnung für multiplexübertragung von dtmf-signalen ATE145311T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9111924A FR2682002B1 (fr) 1991-09-27 1991-09-27 Procede et dispositif de transmission de signaux a frequences vocales.

Publications (1)

Publication Number Publication Date
ATE145311T1 true ATE145311T1 (de) 1996-11-15

Family

ID=9417367

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92402619T ATE145311T1 (de) 1991-09-27 1992-09-24 Verfahren und anordnung für multiplexübertragung von dtmf-signalen

Country Status (7)

Country Link
EP (1) EP0534852B1 (de)
AT (1) ATE145311T1 (de)
DE (1) DE69215183T2 (de)
DK (1) DK0534852T3 (de)
ES (1) ES2093807T3 (de)
FR (1) FR2682002B1 (de)
GR (1) GR3021779T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI100932B (fi) * 1995-04-12 1998-03-13 Nokia Telecommunications Oy Äänitaajuussignaalien lähetys radiopuhelinjärjestelmässä
CA2187832A1 (en) * 1995-12-21 1997-06-22 Jari Hagqvist Dtmf for downlink channel in a cellular/mobile/pcs telephone system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837800A (en) * 1988-03-18 1989-06-06 Motorola, Inc. Cellular data telephone system and cellular data telephone therefor

Also Published As

Publication number Publication date
DE69215183D1 (de) 1996-12-19
EP0534852A1 (de) 1993-03-31
FR2682002A1 (fr) 1993-04-02
GR3021779T3 (en) 1997-02-28
ES2093807T3 (es) 1997-01-01
EP0534852B1 (de) 1996-11-13
FR2682002B1 (fr) 1993-12-24
DK0534852T3 (de) 1997-01-20
DE69215183T2 (de) 1997-05-15

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee