BE786256A - Dispositif de commutation commande par des signaux - Google Patents

Dispositif de commutation commande par des signaux

Info

Publication number
BE786256A
BE786256A BE786256DA BE786256A BE 786256 A BE786256 A BE 786256A BE 786256D A BE786256D A BE 786256DA BE 786256 A BE786256 A BE 786256A
Authority
BE
Belgium
Prior art keywords
switching device
controlled switching
signal controlled
signal
switching
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Philips Nv
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.)
Publication date
Publication of BE786256A publication Critical patent/BE786256A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/085—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using digital techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transceivers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
BE786256D 1971-07-15 Dispositif de commutation commande par des signaux BE786256A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7109806.A NL162274C (nl) 1971-07-15 1971-07-15 Spraakgestuurde schakelinrichting.

Publications (1)

Publication Number Publication Date
BE786256A true BE786256A (fr) 1973-01-15

Family

ID=19813622

Family Applications (1)

Application Number Title Priority Date Filing Date
BE786256D BE786256A (fr) 1971-07-15 Dispositif de commutation commande par des signaux

Country Status (12)

Country Link
US (1) US3794763A (xx)
JP (1) JPS5740696B1 (xx)
AT (1) AT342660B (xx)
AU (1) AU470286B2 (xx)
BE (1) BE786256A (xx)
CA (1) CA957076A (xx)
CH (1) CH550515A (xx)
DK (1) DK133220C (xx)
FR (1) FR2145728B1 (xx)
GB (1) GB1403217A (xx)
NL (1) NL162274C (xx)
SE (1) SE372681B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615380A (en) * 1969-11-24 1997-03-25 Hyatt; Gilbert P. Integrated circuit computer system having a keyboard input and a sound output
US4028506A (en) * 1973-12-12 1977-06-07 Nippon Electric Company, Ltd. Maximum value tracing circuit for digitized voice signals
US3944743A (en) * 1974-01-07 1976-03-16 Plantronics, Inc. Method and apparatus for feedback suppression
US3931480A (en) * 1974-09-04 1976-01-06 Gte Sylvania Incorporated Time compression receiver
NO134477C (xx) * 1974-10-29 1976-10-13 Manus Max
US3953676A (en) * 1974-12-12 1976-04-27 Northern Electric Company, Limited Digital control of a loudspeaking telephone system
JPS5263165U (xx) * 1975-11-06 1977-05-10
US4052568A (en) * 1976-04-23 1977-10-04 Communications Satellite Corporation Digital voice switch
US4110560A (en) * 1977-11-23 1978-08-29 Gte Sylvania Incorporated Communication apparatus
DE3137314C2 (de) * 1981-09-16 1984-03-29 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung für sprachgesteuerte Freisprechgeräte
JP2800779B2 (ja) * 1996-05-31 1998-09-21 日本電気株式会社 患者監視システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524929A (en) * 1967-06-29 1970-08-18 Automatic Elect Lab Telephone conference circuit
US3530247A (en) * 1967-08-29 1970-09-22 Bell Telephone Labor Inc Digital vocoder conference system
US3712959A (en) * 1969-07-14 1973-01-23 Communications Satellite Corp Method and apparatus for detecting speech signals in the presence of noise
US3674936A (en) * 1970-02-26 1972-07-04 Burroughs Corp Voice conference system

Also Published As

Publication number Publication date
NL162274B (nl) 1979-11-15
AU4437572A (en) 1974-01-17
CH550515A (de) 1974-06-14
DE2232358B2 (de) 1976-12-02
NL162274C (nl) 1980-04-15
ATA603372A (de) 1977-08-15
DK133220B (da) 1976-04-05
DK133220C (da) 1976-09-06
AU470286B2 (en) 1976-03-11
AT342660B (de) 1978-04-10
CA957076A (en) 1974-10-29
FR2145728A1 (xx) 1973-02-23
JPS4820405A (xx) 1973-03-14
SE372681B (xx) 1974-12-23
US3794763A (en) 1974-02-26
NL7109806A (xx) 1973-01-17
GB1403217A (en) 1975-08-28
DE2232358A1 (de) 1973-01-18
FR2145728B1 (xx) 1980-02-15
JPS5740696B1 (xx) 1982-08-30

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: N.V. PHILIPS GLOEIAMPENFABRIEKEN

Effective date: 19910731