GB1393323A - Multifrequency receivers - Google Patents

Multifrequency receivers

Info

Publication number
GB1393323A
GB1393323A GB4317773A GB4317773A GB1393323A GB 1393323 A GB1393323 A GB 1393323A GB 4317773 A GB4317773 A GB 4317773A GB 4317773 A GB4317773 A GB 4317773A GB 1393323 A GB1393323 A GB 1393323A
Authority
GB
United Kingdom
Prior art keywords
channel
frequency
frequencies
binary signal
majority
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
GB4317773A
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 Business Machines Corp
Original Assignee
International Business Machines 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 Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1393323A publication Critical patent/GB1393323A/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)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
GB4317773A 1972-10-25 1973-09-13 Multifrequency receivers Expired GB1393323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238481A FR2207626A6 (cg-RX-API-DMAC7.html) 1972-10-25 1972-10-25

Publications (1)

Publication Number Publication Date
GB1393323A true GB1393323A (en) 1975-05-07

Family

ID=9106431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4317773A Expired GB1393323A (en) 1972-10-25 1973-09-13 Multifrequency receivers

Country Status (4)

Country Link
JP (1) JPS4975209A (cg-RX-API-DMAC7.html)
DE (1) DE2347589A1 (cg-RX-API-DMAC7.html)
FR (1) FR2207626A6 (cg-RX-API-DMAC7.html)
GB (1) GB1393323A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1200964A4 (en) * 1999-07-23 2004-08-25 Micron Technology Inc METHOD AND CIRCUIT FOR TIMELY ADJUSTING THE CONTROL SIGNALS IN A MEMORY BLOCK

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936801A (en) * 1974-09-12 1976-02-03 Bell Telephone Laboratories, Incorporated Multifrequency signal receiver timing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1200964A4 (en) * 1999-07-23 2004-08-25 Micron Technology Inc METHOD AND CIRCUIT FOR TIMELY ADJUSTING THE CONTROL SIGNALS IN A MEMORY BLOCK

Also Published As

Publication number Publication date
JPS4975209A (cg-RX-API-DMAC7.html) 1974-07-19
FR2207626A6 (cg-RX-API-DMAC7.html) 1974-06-14
DE2347589A1 (de) 1974-05-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee