FR1536854A - Improvements to AC electrical signal receptors - Google Patents

Improvements to AC electrical signal receptors

Info

Publication number
FR1536854A
FR1536854A FR121144A FR121144A FR1536854A FR 1536854 A FR1536854 A FR 1536854A FR 121144 A FR121144 A FR 121144A FR 121144 A FR121144 A FR 121144A FR 1536854 A FR1536854 A FR 1536854A
Authority
FR
France
Prior art keywords
electrical signal
signal receptors
receptors
electrical
signal
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
FR121144A
Other languages
French (fr)
Inventor
Heinz Roos
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
Application granted granted Critical
Publication of FR1536854A publication Critical patent/FR1536854A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR121144A 1966-09-17 1967-09-15 Improvements to AC electrical signal receptors Expired FR1536854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST025888 1966-09-17

Publications (1)

Publication Number Publication Date
FR1536854A true FR1536854A (en) 1968-08-16

Family

ID=32184728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR121144A Expired FR1536854A (en) 1966-09-17 1967-09-15 Improvements to AC electrical signal receptors

Country Status (1)

Country Link
FR (1) FR1536854A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118046A1 (en) * 1970-12-18 1972-07-28 Western Electric Co

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118046A1 (en) * 1970-12-18 1972-07-28 Western Electric Co

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