JPS5426610A - Howling prevention unit - Google Patents
Howling prevention unitInfo
- 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
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.
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) |
-
1977
- 1977-07-29 JP JP9196277A patent/JPS5952876B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5952876B2 (en) | 1984-12-21 |
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