JPS5519108B2 - - Google Patents

Info

Publication number
JPS5519108B2
JPS5519108B2 JP12342476A JP12342476A JPS5519108B2 JP S5519108 B2 JPS5519108 B2 JP S5519108B2 JP 12342476 A JP12342476 A JP 12342476A JP 12342476 A JP12342476 A JP 12342476A JP S5519108 B2 JPS5519108 B2 JP S5519108B2
Authority
JP
Japan
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
JP12342476A
Other languages
Japanese (ja)
Other versions
JPS5348601A (en
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 filed Critical
Priority to JP12342476A priority Critical patent/JPS5348601A/ja
Publication of JPS5348601A publication Critical patent/JPS5348601A/ja
Publication of JPS5519108B2 publication Critical patent/JPS5519108B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Noise Elimination (AREA)
JP12342476A 1976-10-16 1976-10-16 Noise control system Granted JPS5348601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12342476A JPS5348601A (en) 1976-10-16 1976-10-16 Noise control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12342476A JPS5348601A (en) 1976-10-16 1976-10-16 Noise control system

Publications (2)

Publication Number Publication Date
JPS5348601A JPS5348601A (en) 1978-05-02
JPS5519108B2 true JPS5519108B2 (enrdf_load_stackoverflow) 1980-05-23

Family

ID=14860205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12342476A Granted JPS5348601A (en) 1976-10-16 1976-10-16 Noise control system

Country Status (1)

Country Link
JP (1) JPS5348601A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164951A (en) * 1980-05-23 1981-12-18 Babcock Hitachi Kk Ae measuring device
JPS5852695A (ja) * 1981-09-25 1983-03-28 日産自動車株式会社 車両用音声検出装置
FR2582885B1 (fr) * 1985-05-31 1988-03-18 Zurcher Frederic Circuit de transmission a double sens muni de moyens de reglage automatique du gain selon le sens de transmission.
JP2659358B2 (ja) * 1985-12-02 1997-09-30 ローム 株式会社 ハンドフリー型電話機

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751602A (en) * 1971-08-13 1973-08-07 Bell Telephone Labor Inc Loudspeaking telephone
JPS5121709A (ja) * 1974-08-19 1976-02-21 Tokyo Shibaura Electric Co Kakuseidenwakiseigyokairo

Also Published As

Publication number Publication date
JPS5348601A (en) 1978-05-02

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