ZA706171B - Frequency-selective signal receiver - Google Patents

Frequency-selective signal receiver

Info

Publication number
ZA706171B
ZA706171B ZA706171A ZA706171A ZA706171B ZA 706171 B ZA706171 B ZA 706171B ZA 706171 A ZA706171 A ZA 706171A ZA 706171 A ZA706171 A ZA 706171A ZA 706171 B ZA706171 B ZA 706171B
Authority
ZA
South Africa
Prior art keywords
frequency
signal receiver
selective signal
selective
receiver
Prior art date
Application number
ZA706171A
Inventor
L Gasser
Original Assignee
Standard Telephones Cables Ltd
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 Standard Telephones Cables Ltd filed Critical Standard Telephones Cables Ltd
Publication of ZA706171B publication Critical patent/ZA706171B/en

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)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
ZA706171A 1969-09-18 1970-09-10 Frequency-selective signal receiver ZA706171B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691947316 DE1947316A1 (en) 1969-09-18 1969-09-18 Frequency selective signal receiver

Publications (1)

Publication Number Publication Date
ZA706171B true ZA706171B (en) 1971-05-27

Family

ID=5745869

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA706171A ZA706171B (en) 1969-09-18 1970-09-10 Frequency-selective signal receiver

Country Status (6)

Country Link
BE (1) BE756310A (en)
CH (1) CH530140A (en)
DE (1) DE1947316A1 (en)
FR (1) FR2061795B1 (en)
GB (1) GB1291516A (en)
ZA (1) ZA706171B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140739A (en) * 1983-01-31 1984-08-13 Sony Corp Control signal detecting circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267272B (en) * 1966-03-25 1968-05-02 Siemens Ag Frequency selective signal receiver

Also Published As

Publication number Publication date
BE756310A (en) 1971-03-18
DE1947316A1 (en) 1971-04-01
GB1291516A (en) 1972-10-04
FR2061795B1 (en) 1975-02-21
FR2061795A1 (en) 1971-06-25
CH530140A (en) 1972-10-31

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