FR1300624A - Control circuit operated by voice frequency signals - Google Patents

Control circuit operated by voice frequency signals

Info

Publication number
FR1300624A
FR1300624A FR873458A FR873458A FR1300624A FR 1300624 A FR1300624 A FR 1300624A FR 873458 A FR873458 A FR 873458A FR 873458 A FR873458 A FR 873458A FR 1300624 A FR1300624 A FR 1300624A
Authority
FR
France
Prior art keywords
control circuit
frequency signals
voice frequency
circuit operated
operated
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
FR873458A
Other languages
French (fr)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority claimed from US59272A external-priority patent/US3170994A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to FR873458A priority Critical patent/FR1300624A/en
Application granted granted Critical
Publication of FR1300624A publication Critical patent/FR1300624A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR873458A 1960-09-29 1961-09-18 Control circuit operated by voice frequency signals Expired FR1300624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR873458A FR1300624A (en) 1960-09-29 1961-09-18 Control circuit operated by voice frequency signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59272A US3170994A (en) 1960-09-29 1960-09-29 Tone operated echo suppressor control circuit
FR873458A FR1300624A (en) 1960-09-29 1961-09-18 Control circuit operated by voice frequency signals

Publications (1)

Publication Number Publication Date
FR1300624A true FR1300624A (en) 1962-08-03

Family

ID=26192325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR873458A Expired FR1300624A (en) 1960-09-29 1961-09-18 Control circuit operated by voice frequency signals

Country Status (1)

Country Link
FR (1) FR1300624A (en)

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