CN201066885Y - Digital/analog integrated machine - Google Patents
Digital/analog integrated machine Download PDFInfo
- Publication number
- CN201066885Y CN201066885Y CNU2007200212087U CN200720021208U CN201066885Y CN 201066885 Y CN201066885 Y CN 201066885Y CN U2007200212087 U CNU2007200212087 U CN U2007200212087U CN 200720021208 U CN200720021208 U CN 200720021208U CN 201066885 Y CN201066885 Y CN 201066885Y
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Abstract
The utility model discloses an analog-digital integrated machine. A digital number signal treatment mode of a machine body is to output digital signals out of TS data stream by a channel demodulation module. The TS data stream is sent to an analog to digital conversion module by a circuit connection line. The analog to digital conversion module converts the digital signals into analog signals which are sent into an analog signal treatment unit. The analog signals are sent to a kinescope to be displayed after being treated by the analog signal treatment unit. Televisions adopting the scheme can receive both analog radio frequency signals, YCBCR signals and AV signals and DVB-T digital signals. Additional circuits are improved, and the manufacturing cost is lowered to the maximum extent. The utility model is a real analog-digital integrated machine.
Description
Technical field
The utility model relates to a kind of analogue digital integrated television, particularly the D/A converting circuit of this type of television set.
Background technology
Advantage such as that the TV signal that digital technology provides has is stable, fidelity, processing mode are simple can guarantee the high definition of television image and the high-fidelity of sound of television; Digital signal is owing to adopted advanced coding, compression and transmission technology, have many advantages such as the program of transmission is many, program interaction, information service, but because anolog TV signals do not stop in the area that has transmitting as yet at present, TV processing scheme that can only receiving digital signals and the TV processing scheme that can only receive analog signal all have limitation, can not satisfy the demand in current market.Simulated television is accepted the solution of many Applied Digitals of digital signal set-top box, and incorporate product mostly is the high-end TV product, does not still have towards the low-cost CRT class integrated analog/digital equipment solution of low side is domestic.
The utility model content
The utility model is at deficiency of the prior art, the D/A converting circuit that is applied on the simulated television is provided, digital signal directly enters the digital circuit processing unit, change numeral into analog signal through this cell signal processing, be sent in the analog circuit by Y/C output and handle, realizing the demonstration of digital signal on simulated television, is real integrated analog/digital equipment solution.
The technical scheme in the invention for solving the above technical problem is:
Integrated analog/digital equipment, it comprises: digital signal processing unit, analogy signal processing unit, picture tube, analogy signal processing unit has analog signal main processing block, image processing circuit and sound treatment circuit, and digital signal processing unit is connected with the analog signal main processing block.
Above-mentioned digital signal processing unit has tuner, channel demodulation module, D/A converter module, and tuner, channel demodulation module, D/A converter module circuit successively connect, and signal incoming analog signal main processing block the most at last.
Above-mentioned tuner incoming digital signal, through channel demodulation module output TS code stream, by circuit connection the TS code stream is sent to D/A converter module, D/A converter module is converted to analog signal with digital signal, send into the analog signal main processing block, by the analog signal main processing block signal is delivered to image processing circuit then.
Above-mentioned analog signal is sent into the analog signal main processing block by Y/C.
Above-mentioned analog signal main processing block is handled back generation rgb signal and is delivered to image processing circuit, and this rgb signal send picture tube to show under the effect of drive circuit and deflection circuit.
Above-mentioned digital signal processing unit is provided with audio-frequency power amplifier, and D/A converter module is connected with audio-frequency power amplifier, and voice signal is passed to the sound treatment circuit of analogy signal processing unit by audio-frequency power amplifier.
The tut signal is sent to the sound effect processor of analogy signal processing unit.
Above-mentioned digital signal processing unit setting program memory and exchanges data memory, D/A converter module are connected with two memories respectively.
It is decoding chip that above-mentioned analog signal main processing block is selected the super single-chip of Sanyo for use.
Above-mentioned analog signal main processing block is selected the LA76952 chip of Sanyo for use, and the channel demodulation module is selected the STV0360 chip of ST company for use, and D/A converter module is selected the STV5105 chip of ST company for use.
The beneficial effects of the utility model are:
Adopt the television set of this programme can receive analog radio-frequency signal, YCBCR signal, AV signal and can receive the DVB-T digital signal again.Artificial circuit part adopts the high and STV5105 chip integration of the super single-chip functional integration of Sanyo, and maximum to the greatest extent may reduce manufacturing cost; The super single product chip power supply voltage of Sanyo is identical with the digital circuit supply power voltage, realize that numerical portion and simulation part adopt same power supply power supply, being different from other top box of digital machine part is directly inserted simply dealt solution in the television set, is real integrated analog/digital equipment.
Description of drawings
Fig. 1 is the system block diagram of the utility model application scenarios.
Below in conjunction with accompanying drawing the utility model is described:
Embodiment
Execution mode 1
In conjunction with Fig. 1, integrated analog/digital equipment, its structure comprises: digital signal processing unit, analogy signal processing unit.Digital signal processing unit has tuner, channel demodulation module, D/A converter module, and analogy signal processing unit has analog signal main processing block, image processing circuit and sound treatment circuit.The channel demodulation module is selected the STV0360 chip of ST company for use, and D/A converter module is selected the STV5105 chip of ST company for use, and the analog signal main processing block is selected the LA76952 chip of Sanyo for use.The tuner of digital signal processing unit, STV0360 chip, STV5105 chip circuit successively connect, and signal inserts the LA76952 chip the most at last.
The tuner of signal from digital signal processing unit inserts, through STV0360 chip demodulation output TS code stream, by circuit connection the TS code stream is sent to the STV5105 chip, this chip major function is that digital signal is converted to analog signal, analog signal is sent to the LA76952 chip of analogy signal processing unit by Y/C output, handle back generation rgb signal through this chip and deliver to image processing circuit, this rgb signal shows on picture tube under the effect of drive circuit and deflection circuit.So far finished the demonstration of digital signal on CRT class television set.
The decoding of analog signal and send and show process and adopt prior art is that analog signal is produced rgb signal by the decoding of LA76952 chip, and this rgb signal shows on picture tube under the effect of drive circuit and deflection circuit.So far finished the demonstration of analog signal on CRT class television set.
Execution mode 2
In conjunction with Fig. 1, integrated analog/digital equipment, its structure comprises: digital signal processing unit, analogy signal processing unit.Digital signal processing unit has tuner, channel demodulation module, D/A converter module and audio-frequency power amplifier, and analogy signal processing unit has analog signal main processing block, image processing circuit and sound treatment circuit.The channel demodulation module is selected the STV0360 chip of ST company for use, and D/A converter module is selected the STV5105 chip of ST company for use, and the analog signal main processing block is selected the LA76952 chip of Sanyo for use.The tuner of digital signal processing unit, STV0360 chip, STV5105 chip circuit successively connect, and image signal receiving is gone into the LA76952 chip the most at last, the STV5105 chip is connected with audio-frequency power amplifier, and voice signal is passed to the sound treatment circuit of analogy signal processing unit by audio-frequency power amplifier.
The tuner of signal from digital signal processing unit inserts, through STV0360 chip demodulation output TS code stream, by circuit connection the TS code stream is sent to the STV5105 chip, this chip major function is that digital signal is converted to analog signal, analog signal is sent to the LA76952 chip of analogy signal processing unit by Y/C output, handle back generation rgb signal through this chip and deliver to image processing circuit, this rgb signal shows on picture tube under the effect of drive circuit and deflection circuit.The STV5105 chip is connected with audio-frequency power amplifier, and by audio-frequency power amplifier voice signal is passed to the sound effect processor of sound treatment circuit, and sound effect processor connects audio power amplifier and drives the loud speaker sounding.So far finished the demonstration and the sounding of digital signal on CRT class television set.
The decoding of analog signal, send and show and voiced process adopts prior art, be analog signal is produced rgb signal by the decoding of LA76952 chip that this rgb signal shows under the effect of drive circuit and deflection circuit on picture tube.Simultaneously, the LA76952 chip is delivered to voice signal sound treatment circuit and is driven the loud speaker sounding.So far finished the demonstration and the sounding of analog signal on CRT class television set.
Execution mode 3
In conjunction with Fig. 1, integrated analog/digital equipment, its structure comprises: digital signal processing unit, analogy signal processing unit.Digital signal processing unit has tuner, channel demodulation module, D/A converter module, audio-frequency power amplifier, program storage and exchanges data memory, and analogy signal processing unit has analog signal main processing block, image processing circuit and sound treatment circuit.The channel demodulation module is selected the STV0360 chip of ST company for use, and D/A converter module is selected the STV5105 chip of ST company for use, and the analog signal main processing block is selected the LA76952 chip of Sanyo for use.The tuner of digital signal processing unit, STV0360 chip, STV5105 chip circuit successively connect, and image signal receiving is gone into the LA76952 chip the most at last, the STV5105 chip is connected with audio-frequency power amplifier, and voice signal is passed to the sound treatment circuit of analogy signal processing unit by audio-frequency power amplifier, the STV5105 chip is connected with the exchanges data memory with program storage respectively, program storage is selected the FLASH memory for use, and the exchanges data memory is selected the DDR internal memory for use.
The tuner of signal from digital signal processing unit inserts, through STV0360 chip demodulation output TS code stream, by circuit connection the TS code stream is sent to the STV5105 chip, this chip cooperates FLASH memory and DDR internal memory to finish the conversion of digital signal to analog signal, analog signal is sent to the LA76952 chip of analogy signal processing unit by Y/C output, handle back generation rgb signal through this chip and deliver to image processing circuit, this rgb signal shows on picture tube under the effect of drive circuit and deflection circuit.The STV5105 chip is connected with audio-frequency power amplifier, and by audio-frequency power amplifier voice signal is passed to the sound effect processor of sound treatment circuit, and sound effect processor connects audio power amplifier and drives the loud speaker sounding.So far finished the demonstration and the sounding of digital signal on CRT class television set.
The decoding of analog signal and send and show process and adopt prior art is that analog signal is produced rgb signal by the decoding of LA76952 chip, and this rgb signal shows on picture tube under the effect of drive circuit and deflection circuit.Simultaneously, the LA76952 chip is delivered to sound treatment circuit with voice signal and is driven the loud speaker sounding.So far finished the demonstration and the sounding of analog signal on CRT class television set.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection range of the present utility model.
Claims (10)
1. integrated analog/digital equipment, it comprises: digital signal processing unit, analogy signal processing unit, picture tube, analogy signal processing unit has analog signal main processing block, image processing circuit and sound treatment circuit, it is characterized in that: digital signal processing unit is connected with the analog signal main processing block.
2. integrated analog/digital equipment according to claim 1, it is characterized in that: described digital signal processing unit has tuner, channel demodulation module, D/A converter module, tuner, channel demodulation module, D/A converter module circuit successively connect, and signal incoming analog signal main processing block the most at last.
3. integrated analog/digital equipment according to claim 2, it is characterized in that: described tuner incoming digital signal, through channel demodulation module output TS code stream, by circuit connection the TS code stream is sent to D/A converter module, D/A converter module is converted to analog signal with digital signal, send into the analog signal main processing block, by the analog signal main processing block signal is delivered to image processing circuit then.
4. integrated analog/digital equipment according to claim 3 is characterized in that: described analog signal is sent into the analog signal main processing block by Y/C.
5. integrated analog/digital equipment according to claim 3 is characterized in that: described analog signal main processing block is handled back generation rgb signal and is delivered to image processing circuit, and this rgb signal send picture tube to show under the effect of drive circuit and deflection circuit.
6. integrated analog/digital equipment according to claim 1 and 2, it is characterized in that: described digital signal processing unit is provided with audio-frequency power amplifier, D/A converter module is connected with audio-frequency power amplifier, and voice signal is passed to the sound treatment circuit of analogy signal processing unit by audio-frequency power amplifier.
7. integrated analog/digital equipment according to claim 6 is characterized in that: described voice signal is sent to the sound effect processor of analogy signal processing unit.
8. integrated analog/digital equipment according to claim 1 and 2 is characterized in that: described digital signal processing unit setting program memory and exchanges data memory, D/A converter module are connected with two memories respectively.
9. integrated analog/digital equipment according to claim 1 and 2 is characterized in that: it is decoding chip that described analog signal main processing block is selected the super single-chip of Sanyo for use.
10. integrated analog/digital equipment according to claim 2, it is characterized in that: described analog signal main processing block is selected the LA76952 chip of Sanyo for use, the channel demodulation module is selected the STV0360 chip of ST company for use, and D/A converter module is selected the STV5105 chip of ST company for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200212087U CN201066885Y (en) | 2007-04-20 | 2007-04-20 | Digital/analog integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200212087U CN201066885Y (en) | 2007-04-20 | 2007-04-20 | Digital/analog integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066885Y true CN201066885Y (en) | 2008-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200212087U Expired - Fee Related CN201066885Y (en) | 2007-04-20 | 2007-04-20 | Digital/analog integrated machine |
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| Country | Link |
|---|---|
| CN (1) | CN201066885Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529922A (en) * | 2013-10-29 | 2014-01-22 | 曙光信息产业(北京)有限公司 | Server power supply unit and server |
-
2007
- 2007-04-20 CN CNU2007200212087U patent/CN201066885Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529922A (en) * | 2013-10-29 | 2014-01-22 | 曙光信息产业(北京)有限公司 | Server power supply unit and server |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080528 Termination date: 20110420 |