FR1282838A - Montage émetteur et récepteur de signaux de code - Google Patents

Montage émetteur et récepteur de signaux de code

Info

Publication number
FR1282838A
FR1282838A FR852957A FR852957A FR1282838A FR 1282838 A FR1282838 A FR 1282838A FR 852957 A FR852957 A FR 852957A FR 852957 A FR852957 A FR 852957A FR 1282838 A FR1282838 A FR 1282838A
Authority
FR
France
Prior art keywords
signal transmitter
code signal
receiver assembly
receiver
assembly
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
FR852957A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to FR852957A priority Critical patent/FR1282838A/fr
Application granted granted Critical
Publication of FR1282838A publication Critical patent/FR1282838A/fr
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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR852957A 1960-02-16 1961-02-16 Montage émetteur et récepteur de signaux de code Expired FR1282838A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR852957A FR1282838A (fr) 1960-02-16 1961-02-16 Montage émetteur et récepteur de signaux de code

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE152160 1960-02-16
FR852957A FR1282838A (fr) 1960-02-16 1961-02-16 Montage émetteur et récepteur de signaux de code

Publications (1)

Publication Number Publication Date
FR1282838A true FR1282838A (fr) 1962-01-27

Family

ID=26189325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852957A Expired FR1282838A (fr) 1960-02-16 1961-02-16 Montage émetteur et récepteur de signaux de code

Country Status (1)

Country Link
FR (1) FR1282838A (fr)

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