GB1189164A - Signal Receiver - Google Patents

Signal Receiver

Info

Publication number
GB1189164A
GB1189164A GB20925/67A GB2092567A GB1189164A GB 1189164 A GB1189164 A GB 1189164A GB 20925/67 A GB20925/67 A GB 20925/67A GB 2092567 A GB2092567 A GB 2092567A GB 1189164 A GB1189164 A GB 1189164A
Authority
GB
United Kingdom
Prior art keywords
limiter
input
gates
signal receiver
level
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
GB20925/67A
Other languages
English (en)
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 GB1189164A publication Critical patent/GB1189164A/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
    • H04Q1/453—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)
  • Amplifiers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Electronic Switches (AREA)
GB20925/67A 1966-05-12 1967-05-05 Signal Receiver Expired GB1189164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST025382 1966-05-12

Publications (1)

Publication Number Publication Date
GB1189164A true GB1189164A (en) 1970-04-22

Family

ID=7460525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20925/67A Expired GB1189164A (en) 1966-05-12 1967-05-05 Signal Receiver

Country Status (7)

Country Link
US (1) US3501703A (enExample)
AT (1) AT299329B (enExample)
BE (1) BE698389A (enExample)
DE (1) DE1487973B2 (enExample)
GB (1) GB1189164A (enExample)
NL (1) NL6706645A (enExample)
NO (1) NO122318B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE388100B (sv) * 1975-10-03 1976-09-20 Ericsson Telefon Ab L M Anordning for detektering av en tonsignal med bestemd frekvens
SE397763B (sv) * 1976-03-09 1977-11-14 Ericsson Telefon Ab L M Mottagaranordning for storningskenslig detektering av atminstone tva tonfrekvenser i en inkommande tonsignal
US5410541A (en) * 1992-05-04 1995-04-25 Ivon International, Inc. System for simultaneous analog and digital communications over an analog channel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE431048A (enExample) * 1937-11-12
US2319306A (en) * 1941-10-31 1943-05-18 Bell Telephone Labor Inc Signaling system
FR996042A (fr) * 1945-04-14 1951-12-12 Perfectionnement aux signaleurs d'impulsions
FR928242A (fr) * 1946-05-18 1947-11-21 Materiel Telephonique Systèmes de signalisation électrique
DE1146137B (de) * 1961-11-16 1963-03-28 Standard Elektrik Lorenz Ag Tonfrequenzsignalempfaenger mit Sprachsperre

Also Published As

Publication number Publication date
NL6706645A (enExample) 1967-11-13
NO122318B (enExample) 1971-06-14
BE698389A (enExample) 1967-11-13
US3501703A (en) 1970-03-17
DE1487973A1 (de) 1969-03-20
DE1487973B2 (de) 1970-10-08
AT299329B (de) 1972-06-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees