JPS5426610A - Howling prevention unit - Google Patents

Howling prevention unit

Info

Publication number
JPS5426610A
JPS5426610A JP9196277A JP9196277A JPS5426610A JP S5426610 A JPS5426610 A JP S5426610A JP 9196277 A JP9196277 A JP 9196277A JP 9196277 A JP9196277 A JP 9196277A JP S5426610 A JPS5426610 A JP S5426610A
Authority
JP
Japan
Prior art keywords
prevention unit
howling prevention
audio signal
howling
waverectifying
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.)
Granted
Application number
JP9196277A
Other languages
Japanese (ja)
Other versions
JPS5952876B2 (en
Inventor
Yuzo Fuse
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP9196277A priority Critical patent/JPS5952876B2/en
Publication of JPS5426610A publication Critical patent/JPS5426610A/en
Publication of JPS5952876B2 publication Critical patent/JPS5952876B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/20—Arrangements for preventing acoustic feed-back

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To enable to prevent howling surely even with the audio signal having greater variation, by obtaining the gain control signal from the output full-waverectifying the audio signal in the amplifying circuit system.
JP9196277A 1977-07-29 1977-07-29 Howling prevention device Expired JPS5952876B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9196277A JPS5952876B2 (en) 1977-07-29 1977-07-29 Howling prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9196277A JPS5952876B2 (en) 1977-07-29 1977-07-29 Howling prevention device

Publications (2)

Publication Number Publication Date
JPS5426610A true JPS5426610A (en) 1979-02-28
JPS5952876B2 JPS5952876B2 (en) 1984-12-21

Family

ID=14041174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9196277A Expired JPS5952876B2 (en) 1977-07-29 1977-07-29 Howling prevention device

Country Status (1)

Country Link
JP (1) JPS5952876B2 (en)

Also Published As

Publication number Publication date
JPS5952876B2 (en) 1984-12-21

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