JPS57155854A - Digital device for identifying digital speech-to-data signal - Google Patents

Digital device for identifying digital speech-to-data signal

Info

Publication number
JPS57155854A
JPS57155854A JP57019863A JP1986382A JPS57155854A JP S57155854 A JPS57155854 A JP S57155854A JP 57019863 A JP57019863 A JP 57019863A JP 1986382 A JP1986382 A JP 1986382A JP S57155854 A JPS57155854 A JP S57155854A
Authority
JP
Japan
Prior art keywords
digital
data signal
identifying
speech
digital device
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.)
Pending
Application number
JP57019863A
Other languages
English (en)
Inventor
Kasuteriino Paoro
Rushiina Furubuio
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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of JPS57155854A publication Critical patent/JPS57155854A/ja
Priority to AU11802/83A priority Critical patent/AU543295B2/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/175—Speech activity or inactivity detectors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0614—Non-recursive filters using Delta-modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
JP57019863A 1981-02-24 1982-02-12 Digital device for identifying digital speech-to-data signal Pending JPS57155854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11802/83A AU543295B2 (en) 1982-02-12 1983-02-24 Ophthalmic lens having a progressively variable focal power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67251/81A IT1144551B (it) 1981-02-24 1981-02-24 Dispositivo numerico per la discriminazione di segnali vocali e segnali dati entrambi numerizzati

Publications (1)

Publication Number Publication Date
JPS57155854A true JPS57155854A (en) 1982-09-27

Family

ID=11300846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57019863A Pending JPS57155854A (en) 1981-02-24 1982-02-12 Digital device for identifying digital speech-to-data signal

Country Status (12)

Country Link
US (1) US4457013A (ja)
EP (1) EP0058982B1 (ja)
JP (1) JPS57155854A (ja)
BR (1) BR8200803A (ja)
CA (1) CA1163686A (ja)
DE (2) DE3261659D1 (ja)
DK (1) DK56282A (ja)
ES (1) ES8303856A1 (ja)
IN (1) IN152773B (ja)
IT (1) IT1144551B (ja)
MX (1) MX151046A (ja)
NO (1) NO152530C (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3270212D1 (en) * 1982-04-30 1986-05-07 Ibm Digital coding method and device for carrying out the method
US4903261A (en) * 1984-10-29 1990-02-20 Stratacom, Inc. Synchronous packet voice/data communication system
US4771425A (en) * 1984-10-29 1988-09-13 Stratacom, Inc. Synchoronous packet voice/data communication system
US4912765A (en) * 1988-09-28 1990-03-27 Communications Satellite Corporation Voice band data rate detector
FR2643523A1 (fr) * 1989-02-22 1990-08-24 Applic Electro Tech Avance Discriminateur pour transmissions numeriques
US5105464A (en) * 1989-05-18 1992-04-14 General Electric Company Means for improving the speech quality in multi-pulse excited linear predictive coding
US5060269A (en) * 1989-05-18 1991-10-22 General Electric Company Hybrid switched multi-pulse/stochastic speech coding technique
CA1290868C (en) * 1989-09-28 1991-10-15 Maurizio Cecarelli Voice data discriminator
JP2643593B2 (ja) * 1989-11-28 1997-08-20 日本電気株式会社 音声・モデム信号識別回路
JPH04208742A (ja) * 1990-12-04 1992-07-30 Canon Inc 通話レベル調整装置
DE4243635C2 (de) * 1992-12-22 1994-10-06 Siemens Nixdorf Inf Syst Überwachung von Fernsprech-Datenverbindungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708746A (en) * 1971-11-08 1973-01-02 Univ Iowa State Res Found Inc System for spectrum analysis including digital filter with variable sampling rate
FR2321219A1 (fr) * 1975-08-14 1977-03-11 Cit Alcatel Discriminateur de signaux vocaux et de signaux numeriques
JPS5523603A (en) * 1978-06-22 1980-02-20 Nec Corp Method and apparatus for coding and decoding of telephone signal
US4303803A (en) * 1978-08-31 1981-12-01 Kokusai Denshin Denwa Co., Ltd. Digital speech interpolation system

Also Published As

Publication number Publication date
US4457013A (en) 1984-06-26
ES509486A0 (es) 1983-02-01
EP0058982B1 (en) 1984-12-27
IT1144551B (it) 1986-10-29
DE3261659D1 (en) 1985-02-07
DK56282A (da) 1982-08-25
NO152530B (no) 1985-07-01
IT8167251A0 (it) 1981-02-24
EP0058982A1 (en) 1982-09-01
CA1163686A (en) 1984-03-13
ES8303856A1 (es) 1983-02-01
NO152530C (no) 1985-10-09
MX151046A (es) 1984-09-17
BR8200803A (pt) 1982-12-21
DE58982T1 (de) 1983-03-03
NO820556L (no) 1982-08-25
IN152773B (ja) 1984-03-31

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