DE3678904D1 - Mit einer adaptiver signalkompression arbeitende verstaerkerschaltung. - Google Patents
Mit einer adaptiver signalkompression arbeitende verstaerkerschaltung.Info
- Publication number
- DE3678904D1 DE3678904D1 DE8686201957T DE3678904T DE3678904D1 DE 3678904 D1 DE3678904 D1 DE 3678904D1 DE 8686201957 T DE8686201957 T DE 8686201957T DE 3678904 T DE3678904 T DE 3678904T DE 3678904 D1 DE3678904 D1 DE 3678904D1
- Authority
- DE
- Germany
- Prior art keywords
- amplifier circuit
- signal compression
- circuit working
- adaptive signal
- adaptive
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
-
- 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
- H04N5/20—Circuitry for controlling amplitude response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8503129 | 1985-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3678904D1 true DE3678904D1 (de) | 1991-05-29 |
Family
ID=19846864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686201957T Expired - Lifetime DE3678904D1 (de) | 1985-11-14 | 1986-11-10 | Mit einer adaptiver signalkompression arbeitende verstaerkerschaltung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4757373A (de) |
EP (1) | EP0223295B1 (de) |
JP (1) | JPH07105900B2 (de) |
DE (1) | DE3678904D1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099154A (en) * | 1989-08-25 | 1992-03-24 | Thomson Consumer Electronics, Inc. | Amplifier arrangement for producing a controllable non-linear transfer characteristic useful for improving the contrast of an image |
US5168375A (en) * | 1991-09-18 | 1992-12-01 | Polaroid Corporation | Image reconstruction by use of discrete cosine and related transforms |
DE4203092A1 (de) * | 1992-02-04 | 1993-08-05 | Philips Patentverwaltung | Verfahren zur kontrastkorrektur |
DE4203717A1 (de) * | 1992-02-08 | 1993-08-12 | Philips Patentverwaltung | Schaltung zur adaptiven weisskompression von videosignalen |
US5274439A (en) * | 1992-03-31 | 1993-12-28 | Panasonic Technologies, Inc. | Apparatus for clipping or limiting color signals to maintain color balance |
BE1007590A3 (nl) * | 1993-10-01 | 1995-08-16 | Philips Electronics Nv | Videosignaalverwerkingsschakeling. |
US5850357A (en) * | 1994-05-30 | 1998-12-15 | Shefer; Mordechai | Signal processing device |
IL109824A (en) * | 1994-05-30 | 1999-12-31 | Shefer Mordechai | Signal processing device |
SG64404A1 (en) * | 1996-11-06 | 1999-04-27 | Sgs Thomson Microelectric Asia | A method & apparatus for correcting colour difference signals |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3835243A (en) * | 1972-04-07 | 1974-09-10 | Matsushita Electric Ind Co Ltd | Circuitry for reducing effects of noise on color image |
US4057828A (en) * | 1975-11-17 | 1977-11-08 | Harris Corporation | Contrast compression circuits |
US4245237A (en) * | 1979-05-11 | 1981-01-13 | Rca Corporation | Controllable non-linear processing of video signals |
JPS6322765Y2 (de) * | 1980-12-27 | 1988-06-22 | ||
US4394744A (en) * | 1981-02-12 | 1983-07-19 | The United States Of America As Represented By The Secretary Of The Navy | Real-time amplitude histogram shaper |
US4388647A (en) * | 1981-10-09 | 1983-06-14 | Rca Corporation | Predictably biased DC coupled video signal peaking control system |
US4639781A (en) * | 1985-02-19 | 1987-01-27 | At&T Information Systems | Dynamic gain adjuster for an image scanner |
US4623924A (en) * | 1985-02-19 | 1986-11-18 | Rca Corporation | Video signal auto peaking circuitry |
-
1986
- 1986-11-07 US US06/928,339 patent/US4757373A/en not_active Expired - Fee Related
- 1986-11-10 EP EP86201957A patent/EP0223295B1/de not_active Expired
- 1986-11-10 DE DE8686201957T patent/DE3678904D1/de not_active Expired - Lifetime
- 1986-11-14 JP JP61269976A patent/JPH07105900B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0223295B1 (de) | 1991-04-24 |
JPS62118677A (ja) | 1987-05-30 |
EP0223295A1 (de) | 1987-05-27 |
JPH07105900B2 (ja) | 1995-11-13 |
US4757373A (en) | 1988-07-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
|
8339 | Ceased/non-payment of the annual fee |