CN100435207C - Circuit structure to deal with popping of flat display device - Google Patents
Circuit structure to deal with popping of flat display device Download PDFInfo
- Publication number
- CN100435207C CN100435207C CNB2005101162165A CN200510116216A CN100435207C CN 100435207 C CN100435207 C CN 100435207C CN B2005101162165 A CNB2005101162165 A CN B2005101162165A CN 200510116216 A CN200510116216 A CN 200510116216A CN 100435207 C CN100435207 C CN 100435207C
- Authority
- CN
- China
- Prior art keywords
- unit
- circuit structure
- processing unit
- signal
- processing
- 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
Images
Abstract
This invention relates to a sound exposure process circuit structure for one output device, wherein, the output device is one plane display device; the sound exposure process circuit comprises one first process unit, one second process unit, one amplifying unit and one sound exposure process unit; the first process unit is to provide one sound source signal to amplifying unit and the second unit is to provide one system signal to sound exposure process unit to provide one static signal to amplifying unit.
Description
Technical field
The relevant a kind of flat display apparatus of the present invention, the output unit of relevant a kind of flat display apparatus specifically.
Background technology
Liquid crystal flat panel display is to be equipped with one of concerned by the industry industry in the opto-electronics, also be that development in recent years is the fastest, its product has been deep in the middle of our daily life, and be acknowledged as the industry that has development potentiality in the new century, along with the arriving of digital times life, the related application product must appear on the scene one by one along with the change of people's consumption pattern of low-income groups attitude and propensity to consume.Because LCD TV possesses advantages such as large scale, plane, ultra-thin, light, radiationless, wide screen, high definition and power saving, be best suited for the display of following digital home, yet liquid crystal flat panel display exists relatively poor message quality, and after this problem will be specified in.
See also Fig. 1, this figure is an existing output unit calcspar.Among the figure, output unit 10 also is a flat display apparatus or a LCD TV.Output unit 10 comprises one first processing unit 11, one second processing unit 12, a magnification processing 13 and a loudspeaker unit 14 at least.Wherein, first processing unit 11 provides a sound source signal to magnification processing 13, and magnification processing 13 is then amplified sound source signal.12 of second processing units provide system's mute signal to magnification processing 13, and then, the sound source signal after 13 of magnification processing are responsible for amplifying is sent to loudspeaker unit 14.Wherein, first processing unit 11 also is an audio treatment unit, and second processing unit 12 also is a system's microcontroller or a video processing unit.
See also Fig. 2, this figure is an existing output unit structural drawing.Among the figure, output unit 10 also is a flat display apparatus or a LCD TV.Fig. 2 illustrates that sound source signal 111 comprises the situation of a high pressure surging 19.And by output unit 10 structural drawing, first processing unit 11 and second processing unit 12 in a flash the shutdown or silent mode under, when switch 18 cuts out (OFF), because system's mute signal 121 of second processing unit 12 magnification processing that is issued to 13 gets slowly than the sound source signal 111 of first processing unit 11, and cause first processing unit 11 under moment shutdown or silent mode, the high pressure surging 19 that is produced directly amplifies sound source signal 111 by magnification processing 13, also be about to source of sound amplifying signal 131 and be sent to loudspeaker unit 14, this moment, 14 of loudspeaker units can send a sonic boom sound, and allowed the user that not good quality impression is arranged.
According to studies show that most mankind can be from frequency 20Hz to the 20KHz for the reaction of sound, so if the pulse wave Cycle Length is less than the words of 50ms, people's ear can not be heard any sound, and relative to frequency during greater than 20KHz, what reaction people's ear also can't have.Therefore, if be enough to less than 20Hz and more than greater than 20KHz, also this sonic boom sound can be ignored at the high pressure surging 19 that produces under moment shutdown or the silent mode according to described first processing unit 11 of Fig. 2.Yet the modern functional characteristic that is subject to first processing unit 11, the high pressure surging 19 that is produced under system's moment shutdown or silent mode still can allow magnification processing 13 high pressure surging 19 is amplified in the human reaction range to sound, and the sonic boom sound that output unit produced can't be neglected.
Whereby, be to solve the sonic boom sound that output unit produced,,, develop a kind of circuit structure to deal with popping that is used for output unit, with as above-mentioned problem settling mode and foundation so the inventor study in many ways and designs to improve the approval of its quality.
Summary of the invention
The purpose of this invention is to provide a kind of circuit structure to deal with popping that is used for an output unit, eliminating under moment shutdown or silent mode, the sonic boom that produces because of the circuit structure to deal with popping characteristic.
According to circuit structure to deal with popping of the present invention, be used for an output unit, this circuit structure comprises at least: one first processing unit, it provides at least one sound source signal; One second processing unit, it provides at least one system signal; One magnification processing, it receives this sound source signal; An and sonic boom processing unit, it receives this system signal and provides a mute signal to this magnification processing according to this system signal, and this sonic boom processing unit has the circuit design characteristic that makes this mute signal arrive at this magnification processing in advance than this sound source signal.This sonic boom processing unit comprises at least: one or the gate logic unit; One Sheffer stroke gate logic circuit unit, its connection is somebody's turn to do or the gate logic unit; One reverser logic circuit unit, it connects this Sheffer stroke gate logic circuit unit; And a bleeder circuit unit, it provides a dividing voltage supply of this reverser logical block.
Circuit structure to deal with popping of the present invention, be used for an output unit, and this output unit also is a flat display apparatus or a LCD TV, and this circuit structure to deal with popping can solve output unit under moment shutdown or silent mode, so the characteristic of output unit and the high pressure surging problem that produces.This high pressure surging is included in the sound source signal, is sent to loudspeaker via amplification again, promptly produces the sonic boom sound.System accepts system's mute signal when magnification processing, and when output unit desires to enter shutdown in a flash or silent mode, the high pressure surging that comes from first processing unit arrives magnification processing in advance than its system's mute signal, continuous be sent to loudspeaker unit, and produce above-mentioned sonic boom via its amplification.Therefore, circuit structure to deal with popping of the present invention more will be set up a sonic boom processing unit between its second processing unit and magnification processing except that comprising existing one first processing unit, one second processing unit, a magnification processing and a loudspeaker unit.
The circuit design characteristic of this sonic boom processing unit makes mute signal that magnification processing received come to such an extent that arrive its magnification processing in advance than the sound source signal of being exported by first processing unit, so, after magnification processing receives mute signal in advance, promptly can't export the source of sound amplifying signal by the sound source signal that first processing unit is exported, so promptly reach and suppress the effect that sonic boom produces by magnification processing.
Whereby, the sonic boom processing unit that the present invention is mentioned, after system's mute signal that output unit is produced passes through the sonic boom processing unit processes, produce a mute signal and can be sent to magnification processing ahead of time, so magnification processing just can be reached the quiet effect of system, and loudspeaker unit has been also because of having eliminated the sonic boom that is produced under moment shutdown or silent mode, more and then promote the approval of user to its quality.
Further understand and understanding for enabling technical characterictic of the present invention and the effect reached had, preferred embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is an existing output unit calcspar;
Fig. 2 is an existing output unit structural drawing;
Fig. 3 is according to an output unit calcspar of the present invention;
Fig. 4 is according to an output unit structural drawing of the present invention; And
Fig. 5 is according to a sonic boom processing unit circuit structure diagram of the present invention.
Embodiment
See also Fig. 3, be an output unit calcspar of the present invention.Among the figure, output unit 10 also is a flat display apparatus or a LCD TV.By finding output unit 10 among Fig. 3 except that comprising one first processing unit 11, one second processing unit 12, a magnification processing 13 and a loudspeaker unit 14, and sonic boom processing unit 21 is set up between second processing unit 12 and magnification processing 13.And this sonic boom processing unit 21 also provides the mute signal after sonic boom processing unit 21 is handled to be sent to magnification processing 13 except integrating the various system signals that sent by second processing unit 12.And first processing unit 11 transmits a sound source signal to magnification processing 13, and magnification processing 13 is amplified sound source signal.Wherein, first processing unit 11 also is an audio treatment unit, and second processing unit 12 also is a system's microcontroller or a video processing unit.
See also Fig. 4, it is an output unit structural drawing of the present invention.Among the figure, output unit 10 also is a flat display apparatus or a LCD TV.Wherein, Fig. 4 understands various system signals among Fig. 3 specifically, and this system signal is respectively system's mute signal 121, source of sound detection signal 211 and video mute control signal 212.And first processing unit 11 is an audio treatment unit, and audio treatment unit provides a decoding function of an external audio signal 112.Second processing unit 12 is a video processing unit or system's microcontroller, and video processing unit or system's microcontroller provide a decoding function of an outer video signal 113.First processing unit 11 and second processing unit 12 in a flash the shutdown or silent mode under, when switch 18 cuts out (OFF), the sound source signal 111 that first processing unit 11 is produced can comprise a high pressure surging 19, at this moment, sonic boom processing unit 21 is integrated system's mute signal 121 and the source of sound detection signal of being exported by second processing unit 12 211 and video mute control signal 212, and sends a mute signal 213 immediately to magnification processing 13.Because of the circuit design characteristic of sonic boom processing unit 21 makes mute signal 213 must arrive at magnification processing 13 in advance than the sound source signal of being exported by first processing unit 11 111, and after receiving mute signal 213 by magnification processing 13, the sound source signal 111 that first processing unit 11 is exported just can't so promptly reach and suppress the effect that sonic boom produces by magnification processing 13 output source of sound amplifying signals 131 to loudspeaker unit 14.
For more clearly demonstrating the described principle of Fig. 4, see also Fig. 5, this figure is according to a sonic boom processing unit circuit structure diagram of the present invention.And can specifically implement the circuit characteristic of this sonic boom processing unit 21 according to the signal connected mode of Fig. 5, wherein, sonic boom processing unit 21 comprises one group of carbon resister, 311,312 dc voltage divider circuits of being formed 31, one or gate logic unit 32, a Sheffer stroke gate logic circuit unit 33, a reverser logic circuit unit 34, one first operating voltage 15, one second operating voltage 16 and a shared pick-up point 17.Carbon resister 311 and 312 dc voltage divider circuits of being formed 31, with of the connection of the good metal material of electrical conductivity as two carbon resisters 311 and 312, and with second operating voltage 16 and the working voltage source of shared pick-up point 17 as dc voltage divider circuit 31.Relend by after dc voltage divider circuit 31 voltage division processing, can obtain the voltage 161 of a dividing point, provide the working voltage source of this reverser logic circuit unit 34 with this.
Please continue with reference to figure 5, or the input end 321 of gate logic unit 32 and 322 is connected with source of sound detection signal 211 and video mute control signal 212 that upper level second processing unit is exported, and or the output terminal 323 of gate logic unit 32 is connected with the input end 331 of next stage Sheffer stroke gate logic circuit unit 33, in addition, another input end 332 of Sheffer stroke gate logic circuit unit 33 is connected with system's mute signal 121 that upper level second processing unit is exported, and the output terminal 333 of Sheffer stroke gate logic circuit unit 33 is connected with the input end 341 of next stage reverser logic circuit unit 34, and 342 of the output terminals of its reverser logic circuit unit 34 are connected with the mute signal 213 of next stage magnification processing.
Wherein, illustrated among Fig. 5 when output unit desires to enter shutdown in a flash or silent mode, sonic boom processing unit 21 is the principles that must close in advance by second operating voltage, 16 to the first operating voltage 15 of output unit, and the dc voltage divider circuit in the sonic boom processing unit 21 31 is connected to second operating voltage 16, whereby, mute signal 213 arrives at magnification processing than sound source signal in advance, and then reaches the generation that suppresses sonic boom.
The above only is an illustrative, but not is restrictive.Anyly do not break away from spirit of the present invention and scope and, all should be contained in accompanying the application's claim scope the modification or the replacement of its equivalence of carrying out.
Claims (15)
1. a circuit structure to deal with popping is used for an output unit, and this circuit structure comprises at least:
One first processing unit, it provides at least one sound source signal;
One second processing unit, it provides at least one system signal;
One magnification processing, it receives this sound source signal; And
One sonic boom processing unit, it receives this system signal and provides a mute signal to this magnification processing according to this system signal, this sonic boom processing unit has makes this mute signal arrive at the circuit design characteristic of this magnification processing in advance than this sound source signal, and this sonic boom processing unit comprises at least:
One or the gate logic unit;
One Sheffer stroke gate logic circuit unit, its connection is somebody's turn to do or the gate logic unit;
One reverser logic circuit unit, it connects this Sheffer stroke gate logic circuit unit; And
One bleeder circuit unit, it provides a dividing voltage supply of this reverser logical block.
2, circuit structure as claimed in claim 1 is characterized in that this output unit is a flat display apparatus.
3, circuit structure as claimed in claim 1 is characterized in that this flat display apparatus is a LCD TV.
4, circuit structure as claimed in claim 1 is characterized in that this first processing unit is an audio treatment unit.
5, circuit structure as claimed in claim 4 is characterized in that this audio treatment unit provides a decoding function of an external audio signal.
6, circuit structure as claimed in claim 5 is characterized in that this audio treatment unit connects one first operating voltage.
7, circuit structure as claimed in claim 1 is characterized in that this second processing unit is system's microcontroller.
8, circuit structure as claimed in claim 7 is characterized in that this system's microcontroller is a video processing unit.
9, circuit structure as claimed in claim 8 is characterized in that this video processing unit provides another decoding function of an outer video signal.
10, circuit structure as claimed in claim 9 is characterized in that this video processing unit connects one first operating voltage.
11, circuit structure as claimed in claim 1 is characterized in that this magnification processing is an audio frequency magnification processing.
12, circuit structure as claimed in claim 11 is characterized in that this audio frequency magnification processing connects a loudspeaker unit.
13, circuit structure as claimed in claim 12 is characterized in that this audio frequency magnification processing connects one second operating voltage.
14, circuit structure as claimed in claim 1 is characterized in that the system mute signal of this mute signal for this output unit.
15, circuit structure as claimed in claim 1 is characterized in that this bleeder circuit unit connects one second operating voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101162165A CN100435207C (en) | 2005-10-21 | 2005-10-21 | Circuit structure to deal with popping of flat display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101162165A CN100435207C (en) | 2005-10-21 | 2005-10-21 | Circuit structure to deal with popping of flat display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1953031A CN1953031A (en) | 2007-04-25 |
| CN100435207C true CN100435207C (en) | 2008-11-19 |
Family
ID=38059341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101162165A Expired - Fee Related CN100435207C (en) | 2005-10-21 | 2005-10-21 | Circuit structure to deal with popping of flat display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100435207C (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439107A (en) * | 1987-08-03 | 1989-02-09 | Rohm Co Ltd | Amplifier circuit |
| JPH07274387A (en) * | 1994-03-25 | 1995-10-20 | Sony Tektronix Corp | Voltage supply apparatus |
| JPH1084226A (en) * | 1996-09-10 | 1998-03-31 | Matsushita Electric Ind Co Ltd | Power amplifier |
| CN1181679A (en) * | 1996-10-31 | 1998-05-13 | 三星电子株式会社 | Audio volume control circuit using pulse width modulation signal |
| CN1192083A (en) * | 1997-02-26 | 1998-09-02 | 汤姆森多媒体公司 | Anti-pop for power off |
| US6091292A (en) * | 1998-03-31 | 2000-07-18 | Matsushita Electric Industrial Co., Ltd. | High efficiency power amplifying apparatus |
| CN1567985A (en) * | 2003-06-30 | 2005-01-19 | 台达电子工业股份有限公司 | Method for turning down sound volume of audio-visual apparatus |
| CN1610393A (en) * | 2004-10-27 | 2005-04-27 | 海信集团有限公司 | Graded silencing method for TV set |
-
2005
- 2005-10-21 CN CNB2005101162165A patent/CN100435207C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439107A (en) * | 1987-08-03 | 1989-02-09 | Rohm Co Ltd | Amplifier circuit |
| JPH07274387A (en) * | 1994-03-25 | 1995-10-20 | Sony Tektronix Corp | Voltage supply apparatus |
| JPH1084226A (en) * | 1996-09-10 | 1998-03-31 | Matsushita Electric Ind Co Ltd | Power amplifier |
| CN1181679A (en) * | 1996-10-31 | 1998-05-13 | 三星电子株式会社 | Audio volume control circuit using pulse width modulation signal |
| CN1192083A (en) * | 1997-02-26 | 1998-09-02 | 汤姆森多媒体公司 | Anti-pop for power off |
| US6091292A (en) * | 1998-03-31 | 2000-07-18 | Matsushita Electric Industrial Co., Ltd. | High efficiency power amplifying apparatus |
| CN1567985A (en) * | 2003-06-30 | 2005-01-19 | 台达电子工业股份有限公司 | Method for turning down sound volume of audio-visual apparatus |
| CN1610393A (en) * | 2004-10-27 | 2005-04-27 | 海信集团有限公司 | Graded silencing method for TV set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1953031A (en) | 2007-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9065414B2 (en) | Automatic volume reduction | |
| CN100435207C (en) | Circuit structure to deal with popping of flat display device | |
| US8073482B2 (en) | Mobile phone with optional audio output function | |
| US20080188208A1 (en) | Volume control process of a mobile device | |
| CN205622755U (en) | Split TV set | |
| CN111383632B (en) | Electronic equipment | |
| CN1770791A (en) | Mobile communication terminal with hearing-aid function and its method for realizing hearing-aid | |
| CN206149367U (en) | Mobile phone motherboard with luminance and volume self -adaptation adjustment function | |
| CN202261181U (en) | Terminal using two-in-one loudspeaker | |
| CN204948314U (en) | A kind of repeater and bluetooth HIFI earphone being applicable to earphone | |
| CN205365640U (en) | Be listed as tail control box | |
| CN1929511A (en) | Mobile phone baseband chip audio frequency switching device | |
| CN208798146U (en) | A kind of multi-mode radio microphone apparatus | |
| CN200962659Y (en) | Mobile phone | |
| CN1949904A (en) | TD SCDMA music cell phone | |
| CN207070307U (en) | A kind of DSP processing modules for gathering multifunctional intellectual sound equipment | |
| KR100455161B1 (en) | Low power lcd display method for terminal using dual processor | |
| CN201414159Y (en) | Multimedia terminal machine | |
| CN106936976B (en) | Electronic device | |
| CN218679315U (en) | Microphone | |
| CN101969492B (en) | Method for high-volume output of mobile phone and high-volume mobile phone | |
| CN108899018A (en) | automatic translation device and method | |
| CN211240070U (en) | Audio power amplifier switching circuit | |
| CN111355982B (en) | Low-power-consumption product real-time pushing system | |
| CN202679472U (en) | Set-top box and phone integrated machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20121021 |