TW200726242A - Mute circuit used to eliminate noise generated when liquid crystal TV is turned on - Google Patents
Mute circuit used to eliminate noise generated when liquid crystal TV is turned onInfo
- Publication number
- TW200726242A TW200726242A TW094146918A TW94146918A TW200726242A TW 200726242 A TW200726242 A TW 200726242A TW 094146918 A TW094146918 A TW 094146918A TW 94146918 A TW94146918 A TW 94146918A TW 200726242 A TW200726242 A TW 200726242A
- Authority
- TW
- Taiwan
- Prior art keywords
- liquid crystal
- turned
- mute
- mute circuit
- circuit used
- Prior art date
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
A mute circuit used to eliminate a noise when a liquid crystal TV is turned on is disclosed, which is used to automatically generate a mute signal when the liquid crystal TV is turned on, so as to enable an audio device of the liquid crystal TV to generate a mute effect. In this invention, when the liquid crystal TV is turned on, a standby voltage is generated to conduct on a transistor so as to automatically generate a mute signal. After the liquid crystal TV is turned on completely, a high voltage of 24VB and a voltage-divider circuit are then used to set the transistor in an off status, so that the mute circuit of this invention no longer generates the mute signal automatically to allow the liquid crystal TV to be free from interference with normal operation thereof. The liquid crystal TV can use the mute circuit of this invention to eliminate the foreign sound generated by a noise signal at the time when the liquid crystal TV is turned on.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094146918A TW200726242A (en) | 2005-12-28 | 2005-12-28 | Mute circuit used to eliminate noise generated when liquid crystal TV is turned on |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094146918A TW200726242A (en) | 2005-12-28 | 2005-12-28 | Mute circuit used to eliminate noise generated when liquid crystal TV is turned on |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200726242A true TW200726242A (en) | 2007-07-01 |
TWI302800B TWI302800B (en) | 2008-11-01 |
Family
ID=45070565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094146918A TW200726242A (en) | 2005-12-28 | 2005-12-28 | Mute circuit used to eliminate noise generated when liquid crystal TV is turned on |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200726242A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110290446A (en) * | 2019-06-11 | 2019-09-27 | 晶晨半导体(上海)股份有限公司 | A kind of high-speed switch machine prevents the mute circuit of sonic boom |
-
2005
- 2005-12-28 TW TW094146918A patent/TW200726242A/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110290446A (en) * | 2019-06-11 | 2019-09-27 | 晶晨半导体(上海)股份有限公司 | A kind of high-speed switch machine prevents the mute circuit of sonic boom |
Also Published As
Publication number | Publication date |
---|---|
TWI302800B (en) | 2008-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |