CN106803867A - A kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit - Google Patents
A kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit Download PDFInfo
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- CN106803867A CN106803867A CN201710087822.1A CN201710087822A CN106803867A CN 106803867 A CN106803867 A CN 106803867A CN 201710087822 A CN201710087822 A CN 201710087822A CN 106803867 A CN106803867 A CN 106803867A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
Abstract
The invention discloses a kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit of electronic technology field, including：Central processing element, signal input amplifying unit, constant-current source circuit unit, image acquisition device, electromagnetism Dolby circuit unit, signal filtering unit and display unit, this kind is based on the constant current high-definition image signal processing system of electromagnetism Dolby circuit, the interference signal being entrained in picture signal can be filtered, improve the quality of picture signal, image is avoided sonwflake phenomenon occur in display, using APW7120 integrated chips as process chip, make structure of the invention simpler, electromagnetic noise signal produced by system itself is suppressed, make the present invention when processing picture signal from the influence of electromagnetic noise, improve stability of the invention, input current is processed, avoid it that electromagnetic interference signal is produced during work, greatly improve stability of the invention.
Description
Technical field
The present invention relates to electronic technology field, at specially a kind of constant current high-definition image signal based on electromagnetism Dolby circuit
Reason system.
Background technology
With the development of society, image processing system has been widely used in the fields such as recognition of face, photography and vedio recording；So
And, there is very big defect in current image-signal processing system, i.e., existing image-signal processing system cannot be thoroughly right
The interference signal being entrained in picture signal is filtered, and makes its effect on driving birds is not good to picture signal treatment, causes image to show
Effect cannot meet the demand of people.In view of problem mentioned above, a kind of perseverance based on electromagnetism Dolby circuit of present invention design
Stream high-definition image signal processing system, it is mentioned above to solve the problems, such as.
The content of the invention
It is an object of the invention to provide a kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit, with
There is very big defect, i.e., existing picture signal in the current image-signal processing system for solving to be proposed in above-mentioned background technology
Processing system cannot be thoroughly to being entrained in picture signal interference signal filter, make its to picture signal treatment effect
Fruit is not good, causes image display effect to meet the problem of demand of people.
To achieve the above object, the present invention provides following technical scheme：A kind of constant current high definition based on electromagnetism Dolby circuit
Image-signal processing system, including：Central processing element, signal input amplifying unit, constant-current source circuit unit, IMAQ
Device, electromagnetism Dolby circuit unit, signal filtering unit and display unit；
Described image collector includes image frame acquisitions unit, image frame processing unit, image frame analysis unit, picture frame
Memory cell, image signal conversion cell and signal transmitter unit, image frame acquisitions unit carry out image frame acquisitions to image, so
The picture frame for gathering is processed and analyzed by image frame processing unit and image frame analysis unit afterwards, picture frame storage is single
Unit can store the picture frame after treatment, and the picture frame after treatment then is carried out into signal conversion by image signal conversion cell,
And the signal after conversion is launched by signal transmitter unit；
Picture frame after treatment is carried out signal conversion, the letter by described image collector by image signal conversion cell
Number transmitter unit is launched the signal after conversion, and the signal input amplifying unit inputs a signal into enhanced processing, described
Signal input amplifying unit connects constant-current source circuit unit, and the central processing element passes through electromagnetism Dolby circuit unit and signal
Filter unit exports the picture signal after filtering to outside display unit；
The constant-current source circuit unit includes load R, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity
C1, electric capacity C2, amplifier P1, diode D1, the negative pole of triode VT1 and FET MOSFET, the electric capacity C1 with amplify
The positive pole of device P1 is connected, and the positive pole of the electric capacity C1 is by the input after resistance R1 as constant-current source circuit, the electric capacity
The negative pole of C2 is connected with the output end of amplifier P1, the positive pole of the electric capacity C2 by resistance R2 and diode D1 P poles phase
Connection, the N poles of the diode D1 are connected with the base stage of triode VT1, output end and the triode VT1 of the amplifier P1
Colelctor electrode be connected, the negative pole of the amplifier P1 is by resistance R3 grounding connections, the grounded emitter of the triode VT1
Connection, the output end of the amplifier P1 is connected grid with FET MOSFET and connects by resistance R4, the FET
As the output end of constant-current source circuit after overload R, the FET MOSFET connections source electrode passes through for the drain electrode of MOSFET
Resistance R5 grounding connections；
The electromagnetism Dolby circuit unit include resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11,
Resistance R12, electric capacity C3, electric capacity C4, diode D2, diode D3 and triode VT2, the positive pole of the electric capacity C3 and electric capacity C4
Input with electromagnetism Dolby circuit is connected, the negative pole of the electric capacity C3 and electric capacity C4 respectively with the P poles of diode D2 and two
The N poles connection of pole pipe D3, the base stage of the N poles of the diode D2 and the P of diode D3 extremely with triode VT2 is connected, described
The colelctor electrode of diode VT2 is connected with the output end of electromagnetism Dolby circuit, and the colelctor electrode of the diode VT2 is by resistance
R12 is connected with power supply, power supply by resistance R6 and resistance R8 grounding connections, power supply by resistance R7 and resistance R9 grounding connections and
Power supply is connected by resistance R10 and resistance R11 grounding connections, the grounded emitter of the triode VT2.
Preferably, the central processing element is APW7120 integrated chips.
Preferably, the display unit is liquid crystal display or mobile phone display screen.
Preferably, the signal filtering unit is electronic filter.
Compared with prior art, the beneficial effects of the invention are as follows：This kind is based on the constant current high-definition image of electromagnetism Dolby circuit
Signal processing system, can filter to the interference signal being entrained in picture signal, improve the quality of picture signal, keep away
Exempt from image and sonwflake phenomenon occur in display, using APW7120 integrated chips as process chip, make structure of the invention more
Simply, electromagnetic noise signal produced by system itself is suppressed, make the present invention when processing picture signal from
The influence of electromagnetic noise, improves stability of the invention, input current is processed, so that it is guaranteed that the present invention possesses constant
Operating current, it is to avoid it produces electromagnetic interference signal during work, greatly improves stability of the invention.
Brief description of the drawings
Fig. 1 is present system theory diagram；
Fig. 2 is constant-current source circuit element circuit figure of the present invention；
Fig. 3 is electromagnetism Dolby circuit element circuit figure of the present invention.
In figure：1 central processing element, 2 signal input amplifying units, 3 constant-current source circuit units, 4 image acquisition devices, 5 electricity
Magnetic Dolby circuit unit, 6 signal filtering units, 7 display units.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of constant current high-definition image based on electromagnetism Dolby circuit
Signal processing system, including：Central processing element 1, signal input amplifying unit 2, constant-current source circuit unit 3, image acquisition device
4th, electromagnetism Dolby circuit unit 5, signal filtering unit 6 and display unit 7；
Described image collector 4 includes image frame acquisitions unit, image frame processing unit, image frame analysis unit, image
Frame memory cell, image signal conversion cell and signal transmitter unit, image frame acquisitions unit carry out image frame acquisitions to image,
Then the picture frame for gathering is processed and is analyzed by image frame processing unit and image frame analysis unit, picture frame storage
Unit can store the picture frame after treatment, and the picture frame after treatment then is carried out into signal by image signal conversion cell turns
Change, and the signal after conversion is launched by signal transmitter unit；
Picture frame after treatment is carried out signal conversion by described image collector 4 by image signal conversion cell, described
Signal transmitter unit is launched the signal after conversion, and the signal input amplifying unit 2 inputs a signal into enhanced processing, institute
The connection constant-current source circuit of signal input amplifying unit 2 unit 3 is stated, the central processing element 1 passes through electromagnetism Dolby circuit unit 5
The picture signal after filtering is exported to outside display unit 7 with signal filtering unit 6；
The constant-current source circuit unit 3 includes load R, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity
C1, electric capacity C2, amplifier P1, diode D1, the negative pole of triode VT1 and FET MOSFET, the electric capacity C1 with amplify
The positive pole of device P1 is connected, and the positive pole of the electric capacity C1 is by the input after resistance R1 as constant-current source circuit, the electric capacity
The negative pole of C2 is connected with the output end of amplifier P1, the positive pole of the electric capacity C2 by resistance R2 and diode D1 P poles phase
Connection, the N poles of the diode D1 are connected with the base stage of triode VT1, output end and the triode VT1 of the amplifier P1
Colelctor electrode be connected, the negative pole of the amplifier P1 is by resistance R3 grounding connections, the grounded emitter of the triode VT1
Connection, the output end of the amplifier P1 is connected grid with FET MOSFET and connects by resistance R4, the FET
As the output end of constant-current source circuit after overload R, the FET MOSFET connections source electrode passes through for the drain electrode of MOSFET
Resistance R5 grounding connections；
The electromagnetism Dolby circuit unit 5 include resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11,
Resistance R12, electric capacity C3, electric capacity C4, diode D2, diode D3 and triode VT2, the positive pole of the electric capacity C3 and electric capacity C4
Input with electromagnetism Dolby circuit is connected, the negative pole of the electric capacity C3 and electric capacity C4 respectively with the P poles of diode D2 and two
The N poles connection of pole pipe D3, the base stage of the N poles of the diode D2 and the P of diode D3 extremely with triode VT2 is connected, described
The colelctor electrode of diode VT2 is connected with the output end of electromagnetism Dolby circuit, and the colelctor electrode of the diode VT2 is by resistance
R12 is connected with power supply, power supply by resistance R6 and resistance R8 grounding connections, power supply by resistance R7 and resistance R9 grounding connections and
Power supply is connected by resistance R10 and resistance R11 grounding connections, the grounded emitter of the triode VT2.
Wherein, the central processing element 1 be APW7120 integrated chips, the display unit 7 be liquid crystal display or
Mobile phone display screen, the signal filtering unit 6 is electronic filter.
Operation principle：Image acquisition device 4 carries out image frame acquisitions by image frame acquisitions unit to image, then by figure
As frame processing unit and image frame analysis unit are processed and analyzed to the picture frame for gathering, picture frame memory cell can be stored
Picture frame after treatment, then carries out signal conversion by image signal conversion cell by the picture frame after treatment, and by letter
Number transmitter unit is launched the signal after conversion, and enhanced processing, signal are input a signal into by signal input amplifying unit 2
The input connection constant-current source circuit of amplifying unit 2 unit 3, it is ensured that the present invention possesses constant operating current, it is to avoid it is in work
During produce electromagnetic interference signal, greatly improve stability of the invention, to be input into picture signal carry out it is undistorted
Amplification, central processing element 1 pressed down by electromagnetism Dolby circuit unit 5 to electromagnetic noise signal produced by system itself
System, exported after then being filtered by the interference signal in the doping of signal filtering unit 6 pairs picture signals after amplification to
Outside display unit 7, so can then improve the quality of picture signal, image is become apparent from display, make the present invention
When processing picture signal from the influence of electromagnetic noise, stability of the invention is improved.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit, it is characterised in that including：Center treatment
Chip (1), signal input amplifying unit (2), constant-current source circuit unit (3), image acquisition device (4), electromagnetism Dolby circuit unit
(5), signal filtering unit (6) and display unit (7)；
Described image collector (4) includes image frame acquisitions unit, image frame processing unit, image frame analysis unit, picture frame
Memory cell, image signal conversion cell and signal transmitter unit, image frame acquisitions unit carry out image frame acquisitions to image, so
The picture frame for gathering is processed and analyzed by image frame processing unit and image frame analysis unit afterwards, picture frame storage is single
Unit can store the picture frame after treatment, and the picture frame after treatment then is carried out into signal conversion by image signal conversion cell,
And the signal after conversion is launched by signal transmitter unit；
Picture frame after treatment is carried out signal conversion, the letter by described image collector (4) by image signal conversion cell
Number transmitter unit is launched the signal after conversion, and the signal input amplifying unit (2) inputs a signal into enhanced processing, institute
State signal input amplifying unit (2) and connect constant-current source circuit unit (3), the central processing element (1) is by electromagnetism noise reduction electricity
Road unit (5) and signal filtering unit (6) export the picture signal after filtering to outside display unit (7)；
The constant-current source circuit unit (3) including load R, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity C1,
Electric capacity C2, amplifier P1, diode D1, the negative pole of triode VT1 and FET MOSFET, the electric capacity C1 and amplifier P1
Positive pole be connected, the positive pole of the electric capacity C1 by the input after resistance R1 as constant-current source circuit, the electric capacity C2's
Negative pole is connected with the output end of amplifier P1, and the positive pole of the electric capacity C2 is connected by resistance R2 with the P poles of diode D1,
The N poles of the diode D1 are connected with the base stage of triode VT1, the output end of the amplifier P1 and the collection of triode VT1
Electrode is connected, and by resistance R3 grounding connections, the grounded emitter of the triode VT1 connects the negative pole of the amplifier P1
Connect, the output end of the amplifier P1 is connected grid with FET MOSFET and connects by resistance R4, the FET
As the output end of constant-current source circuit after overload R, the FET MOSFET connections source electrode passes through for the drain electrode of MOSFET
Resistance R5 grounding connections；
The electromagnetism Dolby circuit unit (5) includes resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electricity
Resistance R12, electric capacity C3, electric capacity C4, diode D2, diode D3 and triode VT2, the positive pole of the electric capacity C3 and electric capacity C4 are equal
Input with electromagnetism Dolby circuit is connected, the negative pole of the electric capacity C3 and electric capacity C4 respectively with the P poles and two poles of diode D2
The N poles connection of pipe D3, the base stage of the N poles of the diode D2 and the P of diode D3 extremely with triode VT2 is connected, and described two
The colelctor electrode of pole pipe VT2 is connected with the output end of electromagnetism Dolby circuit, and the colelctor electrode of the diode VT2 is by resistance
R12 is connected with power supply, power supply by resistance R6 and resistance R8 grounding connections, power supply by resistance R7 and resistance R9 grounding connections and
Power supply is connected by resistance R10 and resistance R11 grounding connections, the grounded emitter of the triode VT2.
2. a kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit according to claim 1, it is special
Levy and be：The central processing element (1) is APW7120 integrated chips.
3. a kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit according to claim 1, it is special
Levy and be：The display unit (7) is liquid crystal display or mobile phone display screen.
4. a kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit according to claim 1, it is special
Levy and be：The signal filtering unit (6) is electronic filter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087822.1A CN106803867B (en) | 2017-02-18 | 2017-02-18 | A kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087822.1A CN106803867B (en) | 2017-02-18 | 2017-02-18 | A kind of constant current high-definition image signal processing system based on electromagnetism Dolby circuit |
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| CN106803867A true CN106803867A (en) | 2017-06-06 |
| CN106803867B CN106803867B (en) | 2019-09-20 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076853A (en) * | 2014-05-29 | 2014-10-01 | 北京航天自动控制研究所 | Constant-current source circuit |
| CN105323422A (en) * | 2015-11-27 | 2016-02-10 | 成都思博特科技有限公司 | High-definition image processing system based on coupling circuit |
| CN105847716A (en) * | 2016-05-31 | 2016-08-10 | 成都白描网络科技有限公司 | Signal amplification type high-definition image signal processing system based on current-constant source circuit |
| CN105872312A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | High-definition image signal processing system based on electromagnetic noise reducing circuit |
| CN105872412A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | Constant-current high-definition image signal processing system based on electromagnetic noise reducing circuit |
| CN105872417A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | Signal amplification type high-definition image signal processing system based on electromagnetic noise reduction circuit |
| CN105872416A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | High-definition image signal processing system based on low-frequency amplifying circuit |
| CN105872316A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | High-definition image signal processing system based on constant-current source circuit |
-
2017
- 2017-02-18 CN CN201710087822.1A patent/CN106803867B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076853A (en) * | 2014-05-29 | 2014-10-01 | 北京航天自动控制研究所 | Constant-current source circuit |
| CN105323422A (en) * | 2015-11-27 | 2016-02-10 | 成都思博特科技有限公司 | High-definition image processing system based on coupling circuit |
| CN105847716A (en) * | 2016-05-31 | 2016-08-10 | 成都白描网络科技有限公司 | Signal amplification type high-definition image signal processing system based on current-constant source circuit |
| CN105872312A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | High-definition image signal processing system based on electromagnetic noise reducing circuit |
| CN105872412A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | Constant-current high-definition image signal processing system based on electromagnetic noise reducing circuit |
| CN105872417A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | Signal amplification type high-definition image signal processing system based on electromagnetic noise reduction circuit |
| CN105872416A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | High-definition image signal processing system based on low-frequency amplifying circuit |
| CN105872316A (en) * | 2016-05-31 | 2016-08-17 | 成都白描网络科技有限公司 | High-definition image signal processing system based on constant-current source circuit |
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