FR95984E - Improvements to AC electrical signal receptors. - Google Patents

Improvements to AC electrical signal receptors.

Info

Publication number
FR95984E
FR95984E FR95984DA FR95984E FR 95984 E FR95984 E FR 95984E FR 95984D A FR95984D A FR 95984DA FR 95984 E FR95984 E FR 95984E
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
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.)
Publication date
Application granted granted Critical
Publication of FR95984E publication Critical patent/FR95984E/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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/448—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency with conversion of a single frequency signal into a digital signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
FR95984D 1967-10-07 Improvements to AC electrical signal receptors. Expired FR95984E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1537706 1967-10-07

Publications (1)

Publication Number Publication Date
FR95984E true FR95984E (en) 1972-05-19

Family

ID=5675947

Family Applications (1)

Application Number Title Priority Date Filing Date
FR95984D Expired FR95984E (en) 1967-10-07 Improvements to AC electrical signal receptors.

Country Status (5)

Country Link
BE (1) BE721905A (en)
ES (1) ES358911A2 (en)
FR (1) FR95984E (en)
GB (1) GB1224817A (en)
NL (1) NL6814206A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519072A (en) * 1982-11-10 1985-05-21 Rockwell International Corporation Answer supervision system

Also Published As

Publication number Publication date
NL6814206A (en) 1969-04-09
ES358911A2 (en) 1970-05-16
BE721905A (en) 1969-04-08
GB1224817A (en) 1971-03-10

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