CN106878585A - The full HD FHD of high definition HD/ may be selected video filtering driver - Google Patents
The full HD FHD of high definition HD/ may be selected video filtering driver Download PDFInfo
- Publication number
- CN106878585A CN106878585A CN201710043803.9A CN201710043803A CN106878585A CN 106878585 A CN106878585 A CN 106878585A CN 201710043803 A CN201710043803 A CN 201710043803A CN 106878585 A CN106878585 A CN 106878585A
- Authority
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- China
- Prior art keywords
- wave filter
- input
- video filtering
- output end
- filtering driver
- 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.)
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 37
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
Abstract
Video filtering driver may be selected the invention discloses a kind of full HD FHD of high definition HD/, including：Input clamp module, its input as this video filtering driver input；First wave filter, the output end of its input connection input clamp module；Second wave filter, the output end of its input connection input clamp module；6dB output driving modules, its input connects the output end of the first wave filter and the second wave filter, its output end as this video filtering driver output end；Alternative controlling switch, used as this video filtering driver control end, its output end connects the control end of the first wave filter and the second wave filter to its input respectively, and the output signal of input clamp module is only capable of by the first wave filter or the second wave filter.The beneficial effects of the invention are as follows：Reduces cost, can be applicable high definition HD or full HD FHD video filterings, the flexibility of raising circuit, increasing the selectivity of circuit.
Description
Technical field
The present invention relates to a kind of video filtering driver, the video filtering driver can be applied to the video amplifier, machine top
Box and consumer video player etc..
Background technology
In the prior art, video filtering driver uses the filtering selection without bandwidth simultaneously of 6 ranks.Its general principle
It is that vision signal makes its bias level clamp in a fixed level, afterwards by being coupled into driver, input clamp module
The signal and noise outside bandwidth are filtered out by 6 rank filtration modules, vision signal is completed finally by the output driving module of 6dB
Transmission.The video amplitude on certain Frequency point is required in some applications no more than limit value, and the filtering of 6 ranks will not
Meet this application；No bandwidth selection can be caused using unification or to pursue function so that application layout is complicated simultaneously
Change.
The content of the invention
Deficiency of the present invention according to more than, there is provided a kind of full HD FHD of high definition HD/ may be selected video filtering driver,
The driver uses the high definition HD/ selectable patterns of full HD FHD, makes using variation is become, and 10 rank butterworth are filtered
Device meets more applications in the case where performance is not influenceed.
The solution of the present invention is：
A kind of full HD FHD of high definition HD/ may be selected video filtering driver, it is characterised in that including：
Input clamp module, its input as this video filtering driver input；
First wave filter, the output end of its input connection input clamp module；
Second wave filter, the output end of its input connection input clamp module；
6dB output driving modules, its input connects the output end of the first wave filter and the second wave filter, and its output end is used as this
The output end of video filtering driver；
Preferably, alternative controlling switch, its input connects respectively as this video filtering driver control end, its output end
Connect the control end of the first wave filter and the second wave filter, the output signal of input clamp module is only capable of by the first wave filter or the
Two wave filters.
Preferably, the first wave filter and the second wave filter can select butterworth wave filters, it is respectively used to full HD
FHD and HD video-signal filters, for the vision signal decayed outside selected bandwidth, it has decay intensity higher.
First wave filter and the second wave filter be 6 rank wave filters, 7 rank wave filters, 8 rank wave filters, 9 rank wave filters or
10 rank wave filters, preferably 10 rank wave filters.
Preferably, the alternative controlling switch is not gate, the input of not gate drives as this video filtering all the way
Device control end, another road connect the control end of the second wave filter, and the output end of not gate connects the control end of first wave filter.
Preferably, the bandwidth frequency of first wave filter is 56MHz.
Preferably, the bandwidth frequency of second wave filter is 35MHz.
The 6dB output drivings module can drive direct current or the Ω of the Ω of AC coupled list 150 or double 75 to load.
Basic functional principle of the invention：
Vision signal passes through the input for being coupled into this video filtering driver, and input clamps module by the biasing of vision signal
Voltage clamp had both caused that its monochrome information is not lost, and reduced the DC current of load again in a low fixed level.
Select the pattern that needs to use or select high definition by providing low and high level at this video filtering driver control end
HD selects full HD FHD, the vision signal that 10 rank butterworth wave filters will decay outside selected bandwidth, and it is strong to decay
Degree can be far longer than 6 rank wave filters, and the vision signal in bandwidth is unaffected.
The filtered filtered vision signal of device amplifies 6dB by 6dB output driving modules, by vision signal can drive simultaneously
The single Ω of 150 Ω or double 75 loads of dynamic direct current or AC coupled.
The beneficial effects of the invention are as follows：Reduces cost, can be applicable high definition HD or full HD FHD video filterings, improve circuit
Flexibility, increase circuit selectivity.
Brief description of the drawings
Fig. 1 is electric theory diagram of the invention.
Specific embodiment
In conjunction with accompanying drawing, the present invention is further illustrated：
As illustrated, a kind of full HD FHD of high definition HD/ may be selected video filtering driver, it is characterised in that including：
Input clamp module, its input as this video filtering driver input IN；
First wave filter, the output end of its input connection input clamp module；
Second wave filter, the output end of its input connection input clamp module；
6dB output driving modules, its input connects the output end of the first wave filter and the second wave filter, and its output end is used as this
The output end OUT of video filtering driver；
Alternative controlling switch, its input connects the first filter respectively as this video filtering driver control end, its output end
The control end of ripple device and the second wave filter, the output signal of input clamp module is only capable of being filtered by the first wave filter or second
Device.
First wave filter and the second wave filter are 6 rank wave filters, 7 rank wave filters, 8 rank wave filters, 9 rank wave filters or 10 ranks
Wave filter.
Alternative controlling switch is not gate, and the input of not gate is all the way as this video filtering driver control end SEL, another
The control end of the second wave filter is connected all the way, and the output end of not gate connects the control end of the first wave filter.
The bandwidth frequency of the first wave filter is 56MHz.
The bandwidth frequency of the second wave filter is 35MHz.
6dB output drivings module can drive direct current or single Ω of 150 Ω or double 75 of AC coupled to load.
Claims (6)
1. a kind of full HD FHD of high definition HD/ may be selected video filtering driver, it is characterised in that including：
Input clamp module, its input as this video filtering driver input；
First wave filter, the output end of its input connection input clamp module；
Second wave filter, the output end of its input connection input clamp module；
6dB output driving modules, its input connects the output end of the first wave filter and the second wave filter, and its output end is used as this
The output end of video filtering driver；
Alternative controlling switch, its input connects the first filter respectively as this video filtering driver control end, its output end
The control end of ripple device and the second wave filter, the output signal of input clamp module is only capable of being filtered by the first wave filter or second
Device.
2. a kind of full HD FHD of high definition HD/ as claimed in claim 1 may be selected video filtering driver, it is characterized in that, it is described
First wave filter and the second wave filter are 6 rank wave filters, 7 rank wave filters, 8 rank wave filters, 9 rank wave filters or 10 rank wave filters.
3. a kind of full HD FHD of high definition HD/ as claimed in claim 2 may be selected video filtering driver, it is characterized in that, it is described
Alternative controlling switch is not gate, and the input of not gate is all the way as this video filtering driver control end, another road connection the
The control end of two wave filters, the output end of not gate connects the control end of first wave filter.
4. a kind of full HD FHD of high definition HD/ as claimed in claim 3 may be selected video filtering driver, it is characterized in that, it is described
The bandwidth frequency of the first wave filter is 56MHz.
5. a kind of full HD FHD of high definition HD/ as claimed in claim 3 may be selected video filtering driver, it is characterized in that, it is described
The bandwidth frequency of the second wave filter is 35MHz.
6. a kind of full HD FHD of high definition HD/ as claimed in claim 3 may be selected video filtering driver, it is characterized in that, it is described
6dB output drivings module can drive direct current or single Ω of 150 Ω or double 75 of AC coupled to load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043803.9A CN106878585B (en) | 2017-01-19 | 2017-01-19 | High-definition HD/full-definition FHD selectable video filter driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043803.9A CN106878585B (en) | 2017-01-19 | 2017-01-19 | High-definition HD/full-definition FHD selectable video filter driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106878585A true CN106878585A (en) | 2017-06-20 |
| CN106878585B CN106878585B (en) | 2024-02-06 |
Family
ID=59157980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710043803.9A Active CN106878585B (en) | 2017-01-19 | 2017-01-19 | High-definition HD/full-definition FHD selectable video filter driver |
Country Status (1)
| Country | Link |
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| CN (1) | CN106878585B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642696A (en) * | 1985-07-25 | 1987-02-10 | Rca Corporation | Kinescope driver with kinescope current sensing circuit |
| US6130719A (en) * | 1998-09-04 | 2000-10-10 | Telecruz Technology, Inc. | Method and apparatus for accurately recovering the synchronization signals contained in composite video signals |
| CN1635702A (en) * | 2003-12-30 | 2005-07-06 | 上海贝岭股份有限公司 | A brushless motor controller having overload switching and adjusting function |
| US20060170638A1 (en) * | 2002-12-20 | 2006-08-03 | Koninklijke Philips Electronics N.V. | Video driver with integrated sample-and-hold amplifier and column buffer |
| US20070165122A1 (en) * | 2006-01-19 | 2007-07-19 | Keiichi Tsumura | Video signal clamping circuit |
| US20080002057A1 (en) * | 2004-07-23 | 2008-01-03 | Rohm Co., Ltd. | Video Signal Output Circuit and Electronic Device Using the Same |
| CN101841228A (en) * | 2009-03-20 | 2010-09-22 | 辉芒微电子（深圳）有限公司 | Clamping protection circuit and PFC control circuit utilizing same |
| US20100253410A1 (en) * | 2009-04-02 | 2010-10-07 | Evergreen Micro Devices Co., Ltd. | Clamp protection circuit and a pfc control circuit employing such clamp protection circuit |
| US20120098973A1 (en) * | 2010-10-20 | 2012-04-26 | Stmicroelectronics Asia Pacific Pte Ltd. | Automatic frequency selection for peaking |
| CN102497493A (en) * | 2011-12-06 | 2012-06-13 | 中国科学院半导体研究所 | Full high definition video signal processing circuit and method |
| CN104459317A (en) * | 2013-09-17 | 2015-03-25 | 苏州普源精电科技有限公司 | Frequency spectrum analyzer capable of inhibiting mirror image frequency |
| JP2015095708A (en) * | 2013-11-11 | 2015-05-18 | 株式会社村田製作所 | Power amplification module |
| CN105163003A (en) * | 2015-07-21 | 2015-12-16 | 无锡思泰迪半导体有限公司 | Integrated filter module equipped with video signal pre-amplifying circuit |
| CN204928972U (en) * | 2015-07-21 | 2015-12-30 | 无锡思泰迪半导体有限公司 | Contains video signal amplifier circuit's integrated filter module in advance |
| CN105871180A (en) * | 2016-04-08 | 2016-08-17 | 厦门大学 | High-current CMOS push-pull driving circuit and control method thereof |
| CN206413071U (en) * | 2017-01-19 | 2017-08-15 | 杭州瑞盟科技有限公司 | Video filtering driver may be selected in the full HD FHD of high definition HD/ |
-
2017
- 2017-01-19 CN CN201710043803.9A patent/CN106878585B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642696A (en) * | 1985-07-25 | 1987-02-10 | Rca Corporation | Kinescope driver with kinescope current sensing circuit |
| US6130719A (en) * | 1998-09-04 | 2000-10-10 | Telecruz Technology, Inc. | Method and apparatus for accurately recovering the synchronization signals contained in composite video signals |
| US20060170638A1 (en) * | 2002-12-20 | 2006-08-03 | Koninklijke Philips Electronics N.V. | Video driver with integrated sample-and-hold amplifier and column buffer |
| CN1635702A (en) * | 2003-12-30 | 2005-07-06 | 上海贝岭股份有限公司 | A brushless motor controller having overload switching and adjusting function |
| US20080002057A1 (en) * | 2004-07-23 | 2008-01-03 | Rohm Co., Ltd. | Video Signal Output Circuit and Electronic Device Using the Same |
| US20070165122A1 (en) * | 2006-01-19 | 2007-07-19 | Keiichi Tsumura | Video signal clamping circuit |
| CN101841228A (en) * | 2009-03-20 | 2010-09-22 | 辉芒微电子（深圳）有限公司 | Clamping protection circuit and PFC control circuit utilizing same |
| US20100253410A1 (en) * | 2009-04-02 | 2010-10-07 | Evergreen Micro Devices Co., Ltd. | Clamp protection circuit and a pfc control circuit employing such clamp protection circuit |
| US20120098973A1 (en) * | 2010-10-20 | 2012-04-26 | Stmicroelectronics Asia Pacific Pte Ltd. | Automatic frequency selection for peaking |
| CN102497493A (en) * | 2011-12-06 | 2012-06-13 | 中国科学院半导体研究所 | Full high definition video signal processing circuit and method |
| CN104459317A (en) * | 2013-09-17 | 2015-03-25 | 苏州普源精电科技有限公司 | Frequency spectrum analyzer capable of inhibiting mirror image frequency |
| JP2015095708A (en) * | 2013-11-11 | 2015-05-18 | 株式会社村田製作所 | Power amplification module |
| CN105163003A (en) * | 2015-07-21 | 2015-12-16 | 无锡思泰迪半导体有限公司 | Integrated filter module equipped with video signal pre-amplifying circuit |
| CN204928972U (en) * | 2015-07-21 | 2015-12-30 | 无锡思泰迪半导体有限公司 | Contains video signal amplifier circuit's integrated filter module in advance |
| CN105871180A (en) * | 2016-04-08 | 2016-08-17 | 厦门大学 | High-current CMOS push-pull driving circuit and control method thereof |
| CN206413071U (en) * | 2017-01-19 | 2017-08-15 | 杭州瑞盟科技有限公司 | Video filtering driver may be selected in the full HD FHD of high definition HD/ |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106878585B (en) | 2024-02-06 |
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Address after: 310053 room 701, building 9, No.1 Weiye Road, Puyan street, Binjiang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou ruimeng Technology Co.,Ltd. Address before: 310053 floor 7, building 9, No. 1, Weiye Road, Binjiang District, Hangzhou, Zhejiang Applicant before: HANGZHOU RUIMENG TECHNOLOGY Co.,Ltd. |
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