PT95106A - Aparelho para produzir uma caracteristica de transferencia nao-linear para melhorar o contraste de uma imagem - Google Patents

Aparelho para produzir uma caracteristica de transferencia nao-linear para melhorar o contraste de uma imagem

Info

Publication number
PT95106A
PT95106A PT95106A PT9510690A PT95106A PT 95106 A PT95106 A PT 95106A PT 95106 A PT95106 A PT 95106A PT 9510690 A PT9510690 A PT 9510690A PT 95106 A PT95106 A PT 95106A
Authority
PT
Portugal
Prior art keywords
amplifier
linear
coupled
resistor
voltage divider
Prior art date
Application number
PT95106A
Other languages
English (en)
Other versions
PT95106B (pt
Inventor
William Adamson Lagoni
Original Assignee
Thomson Consumer Electronics
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 Thomson Consumer Electronics filed Critical Thomson Consumer Electronics
Publication of PT95106A publication Critical patent/PT95106A/pt
Publication of PT95106B publication Critical patent/PT95106B/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers

Landscapes

  • Multimedia (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Signal Processing (AREA)
  • Organic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Networks Using Active Elements (AREA)
  • Picture Signal Circuits (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Receiver Circuits (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Communication Control (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
PT95106A 1989-08-25 1990-08-24 Aparelho para produzir uma caracteristica de transferencia nao-linear para melhorar o contraste de uma imagem PT95106B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/398,847 US5099154A (en) 1989-08-25 1989-08-25 Amplifier arrangement for producing a controllable non-linear transfer characteristic useful for improving the contrast of an image

Publications (2)

Publication Number Publication Date
PT95106A true PT95106A (pt) 1992-03-31
PT95106B PT95106B (pt) 1998-08-31

Family

ID=23577025

Family Applications (1)

Application Number Title Priority Date Filing Date
PT95106A PT95106B (pt) 1989-08-25 1990-08-24 Aparelho para produzir uma caracteristica de transferencia nao-linear para melhorar o contraste de uma imagem

Country Status (17)

Country Link
US (1) US5099154A (pt)
EP (1) EP0414159B1 (pt)
JP (1) JPH0642728B2 (pt)
KR (2) KR910004658A (pt)
CN (1) CN1023181C (pt)
AT (1) ATE145771T1 (pt)
CA (1) CA2023851C (pt)
DE (1) DE69029233T2 (pt)
DK (1) DK0414159T3 (pt)
ES (1) ES2096567T3 (pt)
FI (1) FI97501C (pt)
GR (1) GR3022657T3 (pt)
MY (1) MY107074A (pt)
PT (1) PT95106B (pt)
RU (1) RU2159513C2 (pt)
SG (1) SG55147A1 (pt)
TR (1) TR28320A (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980756A (en) * 1989-08-25 1990-12-25 Rca Licensing Corporation Control signal generator for a television system
ES2043513B1 (es) * 1991-07-17 1994-08-01 Bertran Electronica Sa Circuito procesador no lineal de video para televisores en color.
US5162902A (en) * 1991-12-16 1992-11-10 Thomson Consumer Electronics, Inc. Non-linear luminance signal processor responsive to average picture level (APL) of displayed image
JPH05313621A (ja) * 1992-04-27 1993-11-26 Sony Corp 表示制御装置および階調変換方法
DE4444899C1 (de) * 1994-12-16 1996-01-25 Philips Patentverwaltung Schaltungsanordnung zur amplitudenabhängigen Bedämpfung eines Fernsehsignals
EP1214782B1 (de) * 1999-09-17 2003-05-14 Micronas Munich GmbH Verstärkerschaltung mit abschnittsweise linearer übertragungsfunktion
EP1694489B1 (en) 2003-12-10 2016-06-22 William A. Cook Australia Pty. Ltd. Injection moulding of functional cavities
US7276721B2 (en) 2004-08-12 2007-10-02 Carestream Health, Inc. Method and apparatus for improved contrast resolution
US8688061B2 (en) * 2010-08-09 2014-04-01 Skyworks Solutions, Inc. System and method for biasing a power amplifier
EP2896198B1 (en) 2012-09-12 2016-11-09 Dolby Laboratories Licensing Corporation Display management for images with enhanced dynamic range
KR200486598Y1 (ko) 2016-01-20 2018-06-11 나현주 매트리스 커버
TWI617131B (zh) 2016-12-30 2018-03-01 立積電子股份有限公司 放大電路

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760008A (en) * 1950-08-30 1956-08-21 Rca Corp Amplifier having controllable signal expansion and compression characteristics
US2692333A (en) * 1951-08-02 1954-10-19 Rca Corp Wave shaping circuit
US2892025A (en) * 1954-05-11 1959-06-23 Rca Corp Image signal correction apparatus
NL280623A (pt) * 1961-07-06
US3277318A (en) * 1964-04-30 1966-10-04 Gen Electric Gamma correction circuits
US3702898A (en) * 1970-08-04 1972-11-14 Nasa Electronic video editor
FR2117909B1 (pt) * 1970-12-16 1976-12-03 Fernseh Gmbh
US3835243A (en) * 1972-04-07 1974-09-10 Matsushita Electric Ind Co Ltd Circuitry for reducing effects of noise on color image
US3786183A (en) * 1972-06-21 1974-01-15 Northrup Corp Contrast detector for video tracking system
SU557516A1 (ru) * 1975-06-30 1977-05-05 Предприятие П/Я А-1772 Устройство дл регулировани гаммакоррекции видеотракта
US4245237A (en) * 1979-05-11 1981-01-13 Rca Corporation Controllable non-linear processing of video signals
JPS56107674A (en) * 1980-01-31 1981-08-26 Sony Corp Gradation correcting device of video signal
SU1058087A1 (ru) * 1980-02-20 1983-11-30 Ленинградский Институт Авиационного Приборостроения Устройство дл гамма-коррекции телевизионного сигнала
US4363033A (en) * 1980-06-02 1982-12-07 Gte Products Corporation Video switch circuit
US4386369A (en) * 1981-09-22 1983-05-31 Rca Corporation Compensated clamping circuit in a video signal peaking system
US4507615A (en) * 1982-12-16 1985-03-26 Tektronix, Inc. Non-linear amplifier systems
CA1204853A (en) * 1983-01-07 1986-05-20 Joichi Sato Gamma compensating circuit
CA1258118A (en) * 1983-05-05 1989-08-01 Wilson Markle Method of, and apparatus for, colouring a black and white video signal
US4651210A (en) * 1984-12-24 1987-03-17 Rca Corporation Adjustable gamma controller
FR2575884B1 (fr) * 1985-01-08 1988-07-08 Thomson Video Equip Dispositif pour reduire la dynamique de trois signaux de couleur representant une image
US4757373A (en) * 1985-11-14 1988-07-12 U.S. Philips Corporation Amplifier circuit operative with an adaptive signal compression

Also Published As

Publication number Publication date
KR910005676A (ko) 1991-03-30
EP0414159A2 (en) 1991-02-27
MY107074A (en) 1995-09-30
GR3022657T3 (en) 1997-05-31
TR28320A (tr) 1996-04-09
PT95106B (pt) 1998-08-31
JPH0642728B2 (ja) 1994-06-01
CA2023851C (en) 1996-01-30
CA2023851A1 (en) 1991-02-26
CN1023181C (zh) 1993-12-15
FI904104A0 (fi) 1990-08-20
KR0163764B1 (ko) 1999-01-15
JPH03174883A (ja) 1991-07-30
ES2096567T3 (es) 1997-03-16
DK0414159T3 (da) 1996-12-16
KR910004658A (ko) 1991-03-29
DE69029233D1 (de) 1997-01-09
ATE145771T1 (de) 1996-12-15
DE69029233T2 (de) 1997-05-07
FI97501B (fi) 1996-09-13
EP0414159A3 (en) 1991-10-02
SG55147A1 (en) 1998-12-21
CN1049765A (zh) 1991-03-06
RU2159513C2 (ru) 2000-11-20
FI97501C (fi) 1996-12-27
US5099154A (en) 1992-03-24
EP0414159B1 (en) 1996-11-27

Similar Documents

Publication Publication Date Title
PT95106A (pt) Aparelho para produzir uma caracteristica de transferencia nao-linear para melhorar o contraste de uma imagem
KR920020820A (ko) 참조 전류 발생 회로
ATE112395T1 (de) Signalpegel-messanordnung mit offset- korrekturmitteln.
MY110755A (en) Amplifier stage having an output voltage that is db linear.
EP0400819A3 (en) Low bias, high slew rate operational amplifier
KR920005587A (ko) 빔 주사 속도 변조용 편향 시스템
DE59407118D1 (de) Gegentaktendstufe mit einer Einstellung des Querstroms der Gegentaktendstufe
KR910003918A (ko) 증폭 장치
MY115672A (en) Primary color video signal output circuit
ATE141449T1 (de) Kaskodierter videoverstärker mit gegenphasigen ausgangssignalen
KR900018528A (ko) 광 연소 모니터용 프로세스 회로
KR930020834A (ko) 광 증폭기 및 그것을 구비한 광 전송 시스템
SU711646A1 (ru) Способ регулировани ркости изображени объектов на экране усилител изображени
JPS536553A (en) Variable gain amplifier
SU535716A1 (ru) Устройство дл фазового детектировани
JPS55115247A (en) Scale factor controller for scanning electron microscope
SU1469544A1 (ru) Усилитель мощности
SU531250A1 (ru) Усилитель с регулируемым коэффициентом усилени
JPS55150613A (en) Voltage comparing circuit
GB940678A (pt)
KR850004001A (ko) 수직 디테일 비데오 신호 처리용 장치
DE59601083D1 (de) Schaltungsanordnung mit einem Operationsverstärker
SE7906639L (sv) Krets for automatisk forsterkningsreglering
JPS564910A (en) Tone control circuit
JPS57135579A (en) Image pickup tube deflector

Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19911204

FG3A Patent granted, date of granting

Effective date: 19980526

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19991130