AT353852B - CIRCUIT ARRANGEMENT FOR A SELECTIVE SIGN RECEIVER, IN PARTICULAR FOR TELEPHONE SYSTEMS - Google Patents

CIRCUIT ARRANGEMENT FOR A SELECTIVE SIGN RECEIVER, IN PARTICULAR FOR TELEPHONE SYSTEMS

Info

Publication number
AT353852B
AT353852B AT675776A AT675776A AT353852B AT 353852 B AT353852 B AT 353852B AT 675776 A AT675776 A AT 675776A AT 675776 A AT675776 A AT 675776A AT 353852 B AT353852 B AT 353852B
Authority
AT
Austria
Prior art keywords
circuit arrangement
telephone systems
sign receiver
selective sign
selective
Prior art date
Application number
AT675776A
Other languages
German (de)
Other versions
ATA675776A (en
Original Assignee
Int 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of ATA675776A publication Critical patent/ATA675776A/en
Application granted granted Critical
Publication of AT353852B publication Critical patent/AT353852B/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
    • H04Q1/457—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)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Radar Systems Or Details Thereof (AREA)
AT675776A 1975-09-13 1976-09-13 CIRCUIT ARRANGEMENT FOR A SELECTIVE SIGN RECEIVER, IN PARTICULAR FOR TELEPHONE SYSTEMS AT353852B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2540859A DE2540859C2 (en) 1975-09-13 1975-09-13 Circuit arrangement for a selective character receiver, in particular for telephone systems

Publications (2)

Publication Number Publication Date
ATA675776A ATA675776A (en) 1979-05-15
AT353852B true AT353852B (en) 1979-12-10

Family

ID=5956376

Family Applications (1)

Application Number Title Priority Date Filing Date
AT675776A AT353852B (en) 1975-09-13 1976-09-13 CIRCUIT ARRANGEMENT FOR A SELECTIVE SIGN RECEIVER, IN PARTICULAR FOR TELEPHONE SYSTEMS

Country Status (11)

Country Link
AT (1) AT353852B (en)
BE (1) BE846033R (en)
CH (1) CH625925A5 (en)
DE (1) DE2540859C2 (en)
DK (1) DK412176A (en)
ES (1) ES451494A1 (en)
FR (1) FR2324182A1 (en)
GB (1) GB1529758A (en)
NL (1) NL7609996A (en)
NO (1) NO763089L (en)
SE (1) SE7610009L (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2334426A1 (en) * 1973-07-06 1975-01-23 Telefonbau & Normalzeit Gmbh EVALUATOR FOR VOICE-PROTECTED FREQUENCY SELECTIVE SIGN RECEIVERS ACCORDING TO THE MULTI-FREQUENCY METHOD
DE2341224C3 (en) * 1973-08-16 1982-01-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Method for frequency recognition in selective character receivers for telecommunication systems, in particular telephone systems
DE2341225B2 (en) * 1973-08-16 1976-10-28 Standard Elektrik Lorenz Ag, 7000 Stuttgart SELECTIVE SIGN RECEIVER FOR REMOTE INDICATORS, IN PARTICULAR TELEPHONE SYSTEMS

Also Published As

Publication number Publication date
FR2324182A1 (en) 1977-04-08
DE2540859C2 (en) 1984-01-12
SE7610009L (en) 1977-03-14
DK412176A (en) 1977-03-14
BE846033R (en) 1977-03-10
NO763089L (en) 1977-03-15
GB1529758A (en) 1978-10-25
DE2540859A1 (en) 1977-03-17
CH625925A5 (en) 1981-10-15
NL7609996A (en) 1977-03-15
ES451494A1 (en) 1977-10-01
ATA675776A (en) 1979-05-15

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Legal Events

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