GB2237463B - Automatic volume control system - Google Patents
Automatic volume control systemInfo
- Publication number
- GB2237463B GB2237463B GB8923298A GB8923298A GB2237463B GB 2237463 B GB2237463 B GB 2237463B GB 8923298 A GB8923298 A GB 8923298A GB 8923298 A GB8923298 A GB 8923298A GB 2237463 B GB2237463 B GB 2237463B
- Authority
- GB
- United Kingdom
- Prior art keywords
- control system
- volume control
- automatic volume
- automatic
- volume
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8923298A GB2237463B (en) | 1989-10-16 | 1989-10-16 | Automatic volume control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8923298A GB2237463B (en) | 1989-10-16 | 1989-10-16 | Automatic volume control system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8923298D0 GB8923298D0 (en) | 1989-12-06 |
GB2237463A GB2237463A (en) | 1991-05-01 |
GB2237463B true GB2237463B (en) | 1994-01-05 |
Family
ID=10664664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8923298A Expired - Fee Related GB2237463B (en) | 1989-10-16 | 1989-10-16 | Automatic volume control system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2237463B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2256102A (en) * | 1991-05-24 | 1992-11-25 | Robin Middlemass Howie | Automatic level controller for in-vehicle sound system |
GB2257317A (en) * | 1991-06-26 | 1993-01-06 | Damian Rupert Lindley | Automatic volume control for car stereo |
JP3186412B2 (en) * | 1994-04-01 | 2001-07-11 | ソニー株式会社 | Information encoding method, information decoding method, and information transmission method |
AUPM900594A0 (en) * | 1994-10-24 | 1994-11-17 | Cochlear Pty. Limited | Automatic sensitivity control |
GB2306086A (en) * | 1995-10-06 | 1997-04-23 | Richard Morris Trim | Improved adaptive audio systems |
KR100187194B1 (en) * | 1995-12-30 | 1999-05-15 | 김광호 | Volume control method for a cell phone |
US6298247B1 (en) | 1999-12-30 | 2001-10-02 | Telefonaktiebolaget L.M. Ericsson (Publ) | Method and apparatus for automatic volume control |
CN103686339B (en) * | 2013-11-14 | 2018-02-02 | 乐视致新电子科技(天津)有限公司 | A kind of self-adapting volume control method and device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934084A (en) * | 1974-03-27 | 1976-01-20 | Television Research Limited | Variable gain amplifier controlled by ambient noise level |
GB1518574A (en) * | 1976-06-02 | 1978-07-19 | Mueller U | Sound reproducing system |
GB2051510A (en) * | 1979-06-15 | 1981-01-14 | Communications Patents Ltd | Gain controlled audio amplifier system |
GB1586441A (en) * | 1977-12-06 | 1981-03-18 | Marconi Co Ltd | Loudspeaker systems |
GB1603644A (en) * | 1978-05-19 | 1981-11-25 | Music Hire Group Ltd | Sound broadcasting equipment |
-
1989
- 1989-10-16 GB GB8923298A patent/GB2237463B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934084A (en) * | 1974-03-27 | 1976-01-20 | Television Research Limited | Variable gain amplifier controlled by ambient noise level |
GB1518574A (en) * | 1976-06-02 | 1978-07-19 | Mueller U | Sound reproducing system |
GB1586441A (en) * | 1977-12-06 | 1981-03-18 | Marconi Co Ltd | Loudspeaker systems |
GB1603644A (en) * | 1978-05-19 | 1981-11-25 | Music Hire Group Ltd | Sound broadcasting equipment |
GB2051510A (en) * | 1979-06-15 | 1981-01-14 | Communications Patents Ltd | Gain controlled audio amplifier system |
Also Published As
Publication number | Publication date |
---|---|
GB8923298D0 (en) | 1989-12-06 |
GB2237463A (en) | 1991-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940405 |