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
Application number
DE8686201957T
Other languages
English (en)
Inventor
Rooy Johannes Henricus Joz Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3678904D1 publication Critical patent/DE3678904D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G7/00Volume compression or expansion in amplifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/14Picture signal circuitry for video frequency region
    • H04N5/20Circuitry for controlling amplitude response
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/64Circuits for processing colour signals
    • H04N9/68Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
DE8686201957T 1985-11-14 1986-11-10 Mit einer adaptiver signalkompression arbeitende verstaerkerschaltung. Expired - Lifetime DE3678904D1 (de)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

Similar Documents

Publication Publication Date Title
FI853410A0 (fi) Kopplingsanordning.
DE3776226D1 (de) Verstaerkerschaltung.
DE3768655D1 (de) Verstaerker mit einer konstantstromvorspannungsschaltung.
FI850868A0 (fi) Elektroniskt stroe-system.
DE3576026D1 (de) Adaptives elektronisches pufferverstaerkersystem.
DE68919383T2 (de) Verstärkerschaltung.
DE3581553D1 (de) Verstaerkerschaltung.
DE3863040D1 (de) Verstaerkerschaltung.
DE3585819D1 (de) Verstaerker mit verbessertem frequenzgang.
DE3668739D1 (de) Komparatorschaltung mit verbesserten ausgangseigenschaften.
NO852920L (no) Spenneanordning.
DE3585050D1 (de) Verstaerkerschaltung.
DE3678904D1 (de) Mit einer adaptiver signalkompression arbeitende verstaerkerschaltung.
FI852164L (fi) Kopplingsanordning.
DE68921502T2 (de) Verstärkerschaltung.
DE3687047T2 (de) Uebertragungsschaltung.
DE69023725D1 (de) Verstärkerschaltung.
DE3584720D1 (de) Majoritaetsschaltung.
NO164498C (no) Spenneanordning.
DE3676835D1 (de) Kompensationsschaltung.
IT8619722A0 (it) Disposizione circuitale.
DE3683949D1 (de) Verstaerkerschaltung.
FI853102L (fi) Kopplingsanordning.
DE3579757D1 (de) Rufsignaluebertragungsanordnung.
DE69023704D1 (de) Verstärkerschaltung.

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