CN100512401C - TV set sound processing device and TV set - Google Patents
TV set sound processing device and TV set Download PDFInfo
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- CN100512401C CN100512401C CNB2005100753242A CN200510075324A CN100512401C CN 100512401 C CN100512401 C CN 100512401C CN B2005100753242 A CNB2005100753242 A CN B2005100753242A CN 200510075324 A CN200510075324 A CN 200510075324A CN 100512401 C CN100512401 C CN 100512401C
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Abstract
The invention relates to a voice processing device of television, wherein it comprises: receiving the voice signal from the sound processing circuit of television; outputting the solid voice sound; mixing the left and right sound channels, into the middle signal and left and right loop sound signal; amplifying it via the loop amplifier, base amplifier and middle amplifier to be output; using the power amplify control unit to realize the communication with the processor of main board and the control of power amplification of sound processor; as best, the sound processor can receive the external sound signal to be processed and output. In the disclosed television, the main sound output by the sound processing circuit, via main power amplifier, is used as the output channel of main loudspeaker; the output base sound and left and right sound signals via the sound processing device is transformed into the output of 5.1 sound channel.
Description
Technical field
The present invention relates to the television sound treatment technology, particularly relate to a kind of sound processing apparatus of television set and adopt the television set of this device.
Background technology
Along with society and scientific and technological progress, various consumption electronic products are universal day by day, and for example, television set is quite high in the popularity rate of family, school and amusement place and other places; Competition between each manufacturer and the distributors is also fierce day by day.
Along with people's level of consumption and growth in the living standard, also more and more higher to the requirement of television set, for example people wish to enjoy the sound effect of the grace of bringing the tv audio processing section.
But the efficient of traditional class AB power amplifier that common television set adopts is lower, needs big toroidal transformer and good radiating condition, and this kind power amplifier can not be applied in the frivolous panel TV of fuselage.And panel TV set has become the trend of television set industry development day by day.
The digital power amplifier that the panel TV of prior art adopts can not satisfy the requirement of 5.1 power amplifiers: the power that generally can only reach 5～10W owing to have following defective; Power amplification efficiency is low, and radiating condition can not satisfy; Structure is too little, and assembled conditions such as transformer, radiator can not satisfy.
In view of this, need the sound processing apparatus of a kind of television set of exploitation, to adapt to the demand of panel TV set.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of sound processing apparatus and television set of television set, makes that adding 5.1 power amplifiers in panel TV becomes possibility.
For this reason, the technical scheme of technical solution problem of the present invention is: a kind of sound processing apparatus of television set is provided, comprises:
The internal audio frequency input interface is used to import the audio signal from the television audio treatment circuit;
Sound out-put circuit connects this internal audio frequency input interface, is used to export the stereo sound signal;
Mid-treatment circuit connects this internal audio frequency input interface, is used for left and right acoustic channels is carried out mixed processing, becomes center signal and right and left rings is put voice signal;
Around power amplifier, middle bass power amplifier and mid-power amplifier, be respectively applied for the processing and amplifying voice signal corresponding with it;
Around mid-supper bass output, connect describedly around power amplifier, middle bass power amplifier and mid-power amplifier, be used for output sound signal;
The power amplifier control unit is used to realize with the communication of TV SKD processor and realizes control to the power amplifier of described sound processing apparatus;
The sound control unit connects this power amplifier control unit, around power amplifier, middle bass power amplifier and mid-power amplifier, is used to receive the instruction of this power amplifier control unit, and the volume around power amplifier, middle bass power amplifier and mid-power amplifier is controlled.
Preferably, also comprise: the external audio input interface is used to import the audio signal from the television set outside; The sound selected cell, connect this internal audio frequency input interface, external audio input interface and power amplifier control unit, be used to receive the instruction of this power amplifier control unit, selectivity is communicated to this internal audio frequency input interface or external audio input interface around power amplifier, middle bass power amplifier and mid-power amplifier.
Preferably, described sound selected cell is a multi-channel electronic switch.
Preferably, also comprise program indicator light group, connect this power amplifier control unit, be used to show current volume.
Preferably, also comprise temperature regulation circuit, connect this power amplifier control unit, the temperature that is used to regulate this sound processing apparatus.
Preferably, described temperature regulation circuit comprises fan, temperature sensor and fan drive circuit.
Preferably, also comprise standby input/output port, connect this power amplifier control unit.
The present invention also provides a kind of television set that comprises aforesaid sound processing apparatus, and it also comprises sound accompaniment treatment circuit, main power amplifier and primary processor; The master voice of this sound accompaniment treatment circuit output is by the output channel of described main power amplifier as main loudspeaker; The supper bass signal and the left and right sides voice signal of the output of this sound accompaniment treatment circuit are converted into the output of 5.1 sound channels by described sound processing apparatus.
With respect to prior art, the invention has the beneficial effects as follows: because sound processing apparatus of the present invention (5.1 power amplifier) less demanding to power supply, do not need toroidal transformer, as long as one+18V voltage just can reach the power output of 50W, maximum can reach 100W; Efficient height, power supply transformation efficiency can reach more than 85%, do not need very big radiator, and structure is little, do not take too big space, make to add 5.1 power amplifiers become possibility in panel TV.
In addition, the present invention adopts modularized design, and 5.1 sound channel power amplifiers are relatively independent, and can be used as module increases, and does not add, and television set also is a complete system.
Description of drawings
Fig. 1 is the schematic diagram of television set of the present invention;
Fig. 2 is the block diagram of sound processing apparatus of the present invention.
Embodiment
See also Fig. 1, television set of the present invention comprises sound accompaniment treatment circuit 100, main power amplifier 200 and sound processing apparatus (5.1 power amplifier) 300.
Wherein, the master voice of sound accompaniment treatment circuit 110 outputs is by the output channel of main power amplifier 120 as main loudspeaker; The supper bass signal and the left and right sides voice signal of sound accompaniment treatment circuit 110 output are converted into the output of 5.1 sound channels by 5.1 power amplifiers 130.
In addition, 5.1 power amplifiers 130 also receive the sound of television set outside (figure does not show) input and carry out processing and amplifying.
Seeing also Fig. 2, is the block diagram of television voice processing apparatus of the present invention (5.1 power amplifier).
This 5.1 power amplifier 300 comprises that audio input interface part, power amplifier and output, control section, temperature control part divide and amplifier power supply 5.
Wherein, audio input interface partly comprises internal audio frequency input interface (J3) 1, external audio input interface (RCA) 2.
Power amplifier and output comprise penetrate grade follow circuit 7, stereo audio output (RC1-1) 8, mid-treatment circuit 6, sound selected cell 9, around power amplifier 10, mid-power amplifier 11, supper bass power amplifier 12, around mid-supper bass output (RC1-2) 13.
Control section comprises power amplifier control unit (MCU) 17, sound control circuit 15, memory 16 and data/address bus socket (J5) 3, standby IO (input and output) mouthful (J4) 4 and program indicator light group 14.
The temperature regulation section branch comprises temperature sensor 18, fan drive circuit 19 and fan 20.
Introduce the operation principle of 5.1 power amplifiers of the present invention below.
The audio signal that this 5.1 power amplifier 300 is handled comprises the signal that pass through 1 input of internal audio frequency input interface that obtains from the TV inner decoding, the signal of importing from external audio input interface 2 (as the input of DVD5 sound channel etc.).
Data/address bus socket 3 is the data/address buss that link to each other with TV SKD (figure does not show), 5.1 the power amplifier control unit 17 on the power amplifier 300 receives the instruction of (figure does not show) from mainboard processor CPU by this data/address bus socket 3, realizes functions such as quiet, sound amplification.Standby IO mouth 4 also is a socket.
Amplifier power supply 5 is used for to power amplifier control unit 17 and the power supply of all kinds of power amplifier.
The TV signal sound accompaniment is a stereophonic signal, and mid-treatment circuit 6 is used for left and right acoustic channels is carried out mixed processing, becomes center signal and right and left rings is put voice signal.
Penetrate grade follow circuit 7, stereo audio output 8 formation sound out-put circuits.
Sound selected cell 9 can adopt multi-channel electronic switch, is used for sound source is switched selection, and sound is divided into television set internal sound and outside sound import.
Digital power amplifier (around power amplifier 10, mid-power amplifier 11, supper bass power amplifier 12) carries out processing and amplifying to each road signal, offers around mid-supper bass output 13 and exports.
Power amplifier control unit (MCU) 17 is responsible for the communication of mainboard processor CPU and to the control of power amplifier.
Program indicator light group 14 can show current volume.
The signal that sound control circuit 15 receives from power amplifier control unit (MCU) 17, the size of control volume.
Memory 16 stores power amplifier control unit (MCU) 17 register informations.
Temperature sensor 18, fan drive circuit 19 and fan 20 formation temperature regulating circuits, under the control of power amplifier control unit 17, when temperature surpassed certain limit value, fan can start automatically.
In sum, in the television set of the present invention, 5.1 the sound source of power amplifier 300 is from sound accompaniment treatment circuit (chip) 100 or the external sound source of TV movement, main sound channel uses existing sound accompaniment master power amplifier (200) in the television set, power amplifier on other use 5.1 power boards 300,5.1 the MCU17 on the power amplifier 300 links to each other with host CPU, volume is by total line traffic control, can control switch, volume and the function such as quiet of sound.
Those skilled in the art will appreciate that 5.1 power amplifiers of the present invention have following characteristics:
1. less demanding to power supply do not need toroidal transformer, as long as one+18V voltage just can reach the power output of 50W, maximum can reach 100W.
2. efficient height, the power supply transformation efficiency can reach more than 85%, does not need very big radiator, and structure is little, does not take too big space, makes to add 5.1 power amplifiers become possibility in panel TV.
3. employing modularized design, 5.1 sound channel power amplifiers are relatively independent, and can be used as module increases, and does not add, and television set also is a complete system.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the sound processing apparatus of a television set is characterized in that, comprising:
The internal audio frequency input interface is used to import the audio signal from the television audio treatment circuit;
Sound out-put circuit connects this internal audio frequency input interface, is used to export the stereo sound signal;
Mid-treatment circuit connects this internal audio frequency input interface, is used for left and right acoustic channels is carried out mixed processing, becomes center signal and right and left rings is put voice signal;
Around power amplifier, middle bass power amplifier and mid-power amplifier, be respectively applied for the processing and amplifying voice signal corresponding with it;
Around mid-supper bass output, connect describedly around power amplifier, middle bass power amplifier and mid-power amplifier, be used for output sound signal;
The power amplifier control unit is used to realize with the communication of TV SKD processor and realizes control to the power amplifier of described sound processing apparatus;
The sound control unit connects this power amplifier control unit, around power amplifier, middle bass power amplifier and mid-power amplifier, is used to receive the instruction of this power amplifier control unit, and the volume around power amplifier, middle bass power amplifier and mid-power amplifier is controlled.
2. the sound processing apparatus of television set according to claim 1 is characterized in that, also comprises:
The external audio input interface is used to import the audio signal from the television set outside;
The sound selected cell, connect this internal audio frequency input interface, external audio input interface and power amplifier control unit, be used to receive the instruction of this power amplifier control unit, selectivity is communicated to this internal audio frequency input interface or external audio input interface around power amplifier, middle bass power amplifier and mid-power amplifier.
3. the sound processing apparatus of television set according to claim 2 is characterized in that, described sound selected cell is a multi-channel electronic switch.
4. the sound processing apparatus of television set according to claim 1 and 2 is characterized in that, also comprises program indicator light group, connects this power amplifier control unit, is used to show current volume.
5. the sound processing apparatus of television set according to claim 1 and 2 is characterized in that, also comprises temperature regulation circuit, connects this power amplifier control unit, the temperature that is used to regulate this sound processing apparatus.
6. the sound processing apparatus of television set according to claim 4 is characterized in that, described temperature regulation circuit comprises fan, temperature sensor and fan drive circuit.
7. the sound processing apparatus of television set according to claim 1 and 2 is characterized in that, also comprises standby input/output port, connects this power amplifier control unit.
8. a television set that comprises sound processing apparatus as claimed in claim 1 also comprises sound accompaniment treatment circuit, main power amplifier and primary processor; The master voice of this sound accompaniment treatment circuit output is by the output channel of described main power amplifier as main loudspeaker; The supper bass signal and the left and right sides voice signal of the output of this sound accompaniment treatment circuit are converted into the output of 5.1 sound channels by described sound processing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100753242A CN100512401C (en) | 2005-06-15 | 2005-06-15 | TV set sound processing device and TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100753242A CN100512401C (en) | 2005-06-15 | 2005-06-15 | TV set sound processing device and TV set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1882062A CN1882062A (en) | 2006-12-20 |
| CN100512401C true CN100512401C (en) | 2009-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100753242A Active CN100512401C (en) | 2005-06-15 | 2005-06-15 | TV set sound processing device and TV set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100512401C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3373595A1 (en) * | 2017-03-07 | 2018-09-12 | Thomson Licensing | Sound rendering with home cinema system and television |
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2005
- 2005-06-15 CN CNB2005100753242A patent/CN100512401C/en active Active
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| Publication number | Publication date |
|---|---|
| CN1882062A (en) | 2006-12-20 |
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Effective date of registration: 20151208 Address after: 266101 Haier Industrial Park, 1 Haier Road, Shandong, Qingdao Patentee after: haier group corporation Patentee after: Qingdao Haier Electric Appliance Co., Ltd. Patentee after: QINGDAO HAIER MULTI-MEDIA CO., LTD. Address before: 266101 Haier Industrial Park, 1 Haier Road, Shandong, Qingdao Patentee before: haier group corporation Patentee before: Qingdao Haier Electric Appliance Co., Ltd. |