IT7847825A0 - Trico dispositivo di identificazione di una componente in un segnale elet - Google Patents

Trico dispositivo di identificazione di una componente in un segnale elet

Info

Publication number
IT7847825A0
IT7847825A0 IT7847825A IT4782578A IT7847825A0 IT 7847825 A0 IT7847825 A0 IT 7847825A0 IT 7847825 A IT7847825 A IT 7847825A IT 4782578 A IT4782578 A IT 4782578A IT 7847825 A0 IT7847825 A0 IT 7847825A0
Authority
IT
Italy
Prior art keywords
identification
component
electric signal
tric device
tric
Prior art date
Application number
IT7847825A
Other languages
English (en)
Other versions
IT1102025B (it
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Publication of IT7847825A0 publication Critical patent/IT7847825A0/it
Application granted granted Critical
Publication of IT1102025B publication Critical patent/IT1102025B/it

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Telephonic Communication Services (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
IT47825/78A 1977-01-28 1978-01-27 Dispositivo di identificazione di una componente in un segnale elettrico IT1102025B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702453A FR2379218A1 (fr) 1977-01-28 1977-01-28 Dispositif d'identification d'une composante dans un signal electrique et recepteur de numerotation telephonique utilisant un tel dispositif

Publications (2)

Publication Number Publication Date
IT7847825A0 true IT7847825A0 (it) 1978-01-27
IT1102025B IT1102025B (it) 1985-10-07

Family

ID=9186031

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47825/78A IT1102025B (it) 1977-01-28 1978-01-27 Dispositivo di identificazione di una componente in un segnale elettrico

Country Status (7)

Country Link
BE (1) BE863348A (it)
DE (1) DE2803641A1 (it)
FR (1) FR2379218A1 (it)
GB (1) GB1562168A (it)
IT (1) IT1102025B (it)
NL (1) NL7800883A (it)
SE (1) SE7800867L (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339711A (en) 1979-07-10 1982-07-13 Victor Company Of Japan, Ltd. Spectrum displaying apparatus for multichannel signals
CH655819A5 (de) * 1981-11-26 1986-05-15 Autophon Ag Auswerter fuer das erkennen eines signals einer bestimmten frequenz.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215934A (en) * 1960-10-21 1965-11-02 Sylvania Electric Prod System for quantizing intelligence according to ratio of outputs of adjacent band-pass filters
DE2361925A1 (de) * 1973-12-13 1975-06-26 Licentia Gmbh Schaltungsanordnung zur frequenzselektion mit einer der anzahl der frequenzen entsprechenden zahl von resonanzkreisen

Also Published As

Publication number Publication date
BE863348A (fr) 1978-05-16
NL7800883A (nl) 1978-08-01
SE7800867L (sv) 1978-07-29
FR2379218B1 (it) 1982-02-12
IT1102025B (it) 1985-10-07
DE2803641A1 (de) 1978-08-24
GB1562168A (en) 1980-03-05
FR2379218A1 (fr) 1978-08-25

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