IT1061114B - Dispositivo per riconoscere criteri di codice a una o piu frequenze in una sequenza di segnali pcm - Google Patents

Dispositivo per riconoscere criteri di codice a una o piu frequenze in una sequenza di segnali pcm

Info

Publication number
IT1061114B
IT1061114B IT24533/76A IT2453376A IT1061114B IT 1061114 B IT1061114 B IT 1061114B IT 24533/76 A IT24533/76 A IT 24533/76A IT 2453376 A IT2453376 A IT 2453376A IT 1061114 B IT1061114 B IT 1061114B
Authority
IT
Italy
Prior art keywords
frequencies
signal sequence
pcm signal
code criteria
recognize code
Prior art date
Application number
IT24533/76A
Other languages
English (en)
Italian (it)
Original Assignee
Siemens Ag Albis
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 Siemens Ag Albis filed Critical Siemens Ag Albis
Application granted granted Critical
Publication of IT1061114B publication Critical patent/IT1061114B/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
    • H04Q1/457—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Dc Digital Transmission (AREA)
IT24533/76A 1975-06-27 1976-06-22 Dispositivo per riconoscere criteri di codice a una o piu frequenze in una sequenza di segnali pcm IT1061114B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH835075A CH601954A5 (zh) 1975-06-27 1975-06-27

Publications (1)

Publication Number Publication Date
IT1061114B true IT1061114B (it) 1982-10-20

Family

ID=4338983

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24533/76A IT1061114B (it) 1975-06-27 1976-06-22 Dispositivo per riconoscere criteri di codice a una o piu frequenze in una sequenza di segnali pcm

Country Status (8)

Country Link
BE (1) BE843439A (zh)
CH (1) CH601954A5 (zh)
DE (1) DE2621085C3 (zh)
ES (1) ES449293A1 (zh)
IL (1) IL49898A (zh)
IT (1) IT1061114B (zh)
NL (1) NL179103C (zh)
SE (1) SE426535B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1137632A (en) * 1980-09-25 1982-12-14 Claude J.J. Champagne Pulse code demodulator for frequency shift keyed data
DD266253A3 (de) * 1987-06-22 1989-03-29 Leipzig Rft Nachrichtenelekt Universeller digitaler mfc-empfaenger
CH678782A5 (zh) * 1989-05-31 1991-10-31 Siemens Ag Albis

Also Published As

Publication number Publication date
SE426535B (sv) 1983-01-24
NL179103C (nl) 1986-07-01
IL49898A0 (en) 1976-08-31
SE7607161L (sv) 1976-12-28
IL49898A (en) 1978-06-15
DE2621085B2 (de) 1978-06-01
DE2621085C3 (de) 1979-02-01
BE843439A (fr) 1976-10-18
NL179103B (nl) 1986-02-03
CH601954A5 (zh) 1978-07-14
NL7606786A (nl) 1976-12-29
ES449293A1 (es) 1977-08-16
DE2621085A1 (de) 1977-01-20

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