FR1253719A - Système électroacoustique - Google Patents

Système électroacoustique

Info

Publication number
FR1253719A
FR1253719A FR823891A FR823891A FR1253719A FR 1253719 A FR1253719 A FR 1253719A FR 823891 A FR823891 A FR 823891A FR 823891 A FR823891 A FR 823891A FR 1253719 A FR1253719 A FR 1253719A
Authority
FR
France
Prior art keywords
electroacoustic system
electroacoustic
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
FR823891A
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.)
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
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to FR823891A priority Critical patent/FR1253719A/fr
Application granted granted Critical
Publication of FR1253719A publication Critical patent/FR1253719A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/087—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using different frequency bands for transmitting and receiving paths ; using phase shifting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR823891A 1960-04-08 1960-04-08 Système électroacoustique Expired FR1253719A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR823891A FR1253719A (fr) 1960-04-08 1960-04-08 Système électroacoustique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR823891A FR1253719A (fr) 1960-04-08 1960-04-08 Système électroacoustique

Publications (1)

Publication Number Publication Date
FR1253719A true FR1253719A (fr) 1961-02-10

Family

ID=8728984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR823891A Expired FR1253719A (fr) 1960-04-08 1960-04-08 Système électroacoustique

Country Status (1)

Country Link
FR (1) FR1253719A (fr)

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