AU1290076A - Frequency selective signal receiver - Google Patents

Frequency selective signal receiver

Info

Publication number
AU1290076A
AU1290076A AU12900/76A AU1290076A AU1290076A AU 1290076 A AU1290076 A AU 1290076A AU 12900/76 A AU12900/76 A AU 12900/76A AU 1290076 A AU1290076 A AU 1290076A AU 1290076 A AU1290076 A AU 1290076A
Authority
AU
Australia
Prior art keywords
signal receiver
frequency selective
selective signal
frequency
receiver
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.)
Expired
Application number
AU12900/76A
Inventor
Lorenz Gasser
Dietrich Illi
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of AU1290076A publication Critical patent/AU1290076A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
AU12900/76A 1975-04-10 1976-04-12 Frequency selective signal receiver Expired AU1290076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752515769 DE2515769A1 (en) 1975-04-10 1975-04-10 FREQUENCY SELECTIVE SIGNAL RECEIVER

Publications (1)

Publication Number Publication Date
AU1290076A true AU1290076A (en) 1977-10-20

Family

ID=5943564

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12900/76A Expired AU1290076A (en) 1975-04-10 1976-04-12 Frequency selective signal receiver

Country Status (5)

Country Link
AU (1) AU1290076A (en)
BE (1) BE841906R (en)
DE (1) DE2515769A1 (en)
FR (1) FR2307402A1 (en)
GB (1) GB1518006A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7511707A (en) * 1975-10-06 1977-04-12 Philips Nv CROSS-CORRELATION DEVICE.
IT1072242B (en) * 1976-12-17 1985-04-10 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR THE RECOGNITION OF TELEPHONE SIGNALS IN MULTIFREQUENCY CODE CONVERTED IN NUMERICAL FORM
GB2032737A (en) * 1978-10-24 1980-05-08 Standard Telephones Cables Ltd Radio receiver for tone modulated signals
FR2451691A1 (en) * 1979-03-16 1980-10-10 Thomson Csf FREQUENCY COMPARATOR CIRCUIT AND SELECTIVE CALLING DEVICE COMPRISING SUCH A CIRCUIT
US4783845A (en) * 1985-12-20 1988-11-08 Itt Aerospace Optical Digital tone squelch detector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422839A1 (en) * 1974-05-10 1975-12-11 Standard Elektrik Lorenz Ag FREQUENCY SELECTIVE SIGNAL RECEIVER

Also Published As

Publication number Publication date
GB1518006A (en) 1978-07-19
BE841906R (en) 1976-11-17
FR2307402A1 (en) 1976-11-05
DE2515769A1 (en) 1976-10-21

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