BR8805201A - Circuito de ajustagem da linearidade,e cadeia transmissora - Google Patents

Circuito de ajustagem da linearidade,e cadeia transmissora

Info

Publication number
BR8805201A
BR8805201A BR8805201A BR8805201A BR8805201A BR 8805201 A BR8805201 A BR 8805201A BR 8805201 A BR8805201 A BR 8805201A BR 8805201 A BR8805201 A BR 8805201A BR 8805201 A BR8805201 A BR 8805201A
Authority
BR
Brazil
Prior art keywords
linearity
adjustment circuit
introduce
transmitter chain
distortion
Prior art date
Application number
BR8805201A
Other languages
English (en)
Inventor
Melvyn Mcgann
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of BR8805201A publication Critical patent/BR8805201A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Measuring Fluid Pressure (AREA)
  • Networks Using Active Elements (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Picture Signal Circuits (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
BR8805201A 1987-10-10 1988-10-07 Circuito de ajustagem da linearidade,e cadeia transmissora BR8805201A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8723874A GB2211045B (en) 1987-10-10 1987-10-10 Linearity adjusting circuit

Publications (1)

Publication Number Publication Date
BR8805201A true BR8805201A (pt) 1989-05-23

Family

ID=10625158

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8805201A BR8805201A (pt) 1987-10-10 1988-10-07 Circuito de ajustagem da linearidade,e cadeia transmissora

Country Status (12)

Country Link
US (1) US5119506A (pt)
EP (1) EP0312261B1 (pt)
AT (1) ATE103451T1 (pt)
AU (1) AU607004B2 (pt)
BR (1) BR8805201A (pt)
CA (1) CA1311553C (pt)
DE (1) DE3888620T2 (pt)
ES (1) ES2050159T3 (pt)
GB (1) GB2211045B (pt)
NO (1) NO173039C (pt)
NZ (1) NZ226438A (pt)
PT (1) PT88722B (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0437263A (ja) * 1990-05-31 1992-02-07 Matsushita Electric Ind Co Ltd 階調補正装置
JP2834304B2 (ja) * 1990-10-19 1998-12-09 松下電器産業株式会社 線形電力増幅回路
GB2258782B (en) * 1991-07-30 1995-04-12 Samsung Electronics Co Ltd Method and apparatus for gamma correction
FI108177B (fi) * 1997-01-03 2001-11-30 Nokia Mobile Phones Ltd Matkaviestinlaitteiden lähetin
US6246965B1 (en) * 1998-10-01 2001-06-12 Lucent Technologies Inc. Pre-distortion tuning for analog lasers
DE19927952A1 (de) 1999-06-18 2001-01-04 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Vorverzerren eines über eine nicht-lineare Übertragungsstrecke zu übertragenden Übertragungssignals
WO2001063750A1 (en) 2000-02-24 2001-08-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. System for reducing adjacent-channel interference by pre-linearization and pre-distortion
CN102739976B (zh) * 2011-05-17 2017-06-13 新奥特（北京）视频技术有限公司 一种阴影的动态二维字幕的实现的方法及系统

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1015806A (en) * 1963-04-01 1966-01-05 Marconi Co Ltd Improvements in or relating to television signal correcting circuit arrangements
GB1086533A (en) * 1964-02-19 1967-10-11 Marconi Co Ltd Improvements in or relating to non-linear amplifier arrangements
US3277318A (en) * 1964-04-30 1966-10-04 Gen Electric Gamma correction circuits
NL6610059A (pt) * 1966-07-16 1968-01-17
GB1208704A (en) * 1968-06-28 1970-10-14 Marconi Co Ltd Improvements in or relating to colour television transmitters
US3588338A (en) * 1969-03-21 1971-06-28 Rca Corp Gamma correction and shading modulation circuitry for a television camera
US3633121A (en) * 1969-09-05 1972-01-04 Motorola Inc Gamma control circuit
US3684825A (en) * 1971-02-19 1972-08-15 Rca Corp Contrast compression circuits
FR2298228A1 (fr) * 1975-01-17 1976-08-13 Thomson Csf Dispositif de precorrection de non-linearite et emetteur de television comportant un tel disposit
NL7713052A (nl) * 1977-11-28 1979-05-30 Philips Nv Gammacorrectieschakeling voor televisie.
FR2482799A1 (fr) * 1980-05-14 1981-11-20 Lgt Lab Gen Telecomm Dispositif de precorrection de produits de non linearite et systeme de transmission de signaux de television comportant de tel dispositif
GB2096849A (en) * 1981-04-15 1982-10-20 Philips Electronic Associated Television transmitter
US4473849A (en) * 1981-12-21 1984-09-25 Image Resource Corporation System and apparatus for conversion of video signals to film images
GB2153173B (en) * 1984-01-19 1987-09-30 Marconi Co Ltd High-frequency pre-distortion circuit for power amplifiers
JPH06101807B2 (ja) * 1984-08-10 1994-12-12 ソニー株式会社 撮像信号の圧縮回路
GB2164823A (en) * 1984-09-17 1986-03-26 Philips Electronic Associated Television transmitter
JPH0773243B2 (ja) * 1985-12-12 1995-08-02 日本電気株式会社 送信機
US4905086A (en) * 1987-11-30 1990-02-27 Nec Corporation Television transmitter employing klystron with nonlinearity correction circuit

Also Published As

Publication number Publication date
ES2050159T3 (es) 1994-05-16
ATE103451T1 (de) 1994-04-15
AU2353488A (en) 1989-04-13
DE3888620D1 (de) 1994-04-28
AU607004B2 (en) 1991-02-21
NO173039B (no) 1993-07-05
DE3888620T2 (de) 1994-07-07
PT88722B (pt) 1994-03-31
EP0312261A2 (en) 1989-04-19
CA1311553C (en) 1992-12-15
EP0312261A3 (en) 1991-02-27
US5119506A (en) 1992-06-02
NZ226438A (en) 1990-05-28
GB8723874D0 (en) 1987-11-11
GB2211045B (en) 1991-08-21
GB2211045A (en) 1989-06-21
PT88722A (pt) 1989-07-31
EP0312261B1 (en) 1994-03-23
NO173039C (no) 1993-10-13
NO884463L (no) 1989-04-11
NO884463D0 (no) 1988-10-07

Similar Documents

Publication Publication Date Title
AU1637197A (en) Method of correcting nonlinearities of an amplifier, and radio transmitter employing a method of this type
ES8609857A1 (es) Un tranmisor de television
BR8805201A (pt) Circuito de ajustagem da linearidade,e cadeia transmissora
KR930003729A (ko) 음향 레벨 자동 조절장치
HK93595A (en) Reference load amplifier correction system and method
EP0313189A3 (en) Quadcomp amplifier
DK0414159T3 (da) Forstærkerarrangement til at tilvejebringe en styrbar, ikke-lineær overføingskarakteristik, som er brugbar til at forbedre kontrasten i et billede
NZ500719A (en) Predistorting network for external optical modulator
CA2108319A1 (en) Equalizing Amplifier
JPS5545264A (en) Switch circuit
TW326543B (en) Amplifying circuit for dynamic focus
EP0346020A3 (en) Drive amplifier circuit
ES8503462A1 (es) Perfeccionamientos introducidos en un aparato excitador de tubo de imagen realimentado
JPS6211534B2 (pt)
JPS6449438A (en) Circuit for compensating non-linear distortion
WO1997023051A3 (en) Radio apparatus
FR2447642A1 (fr) Dispositif de correction des defauts de linearite d'etages amplificateurs a transistor
ES480483A1 (es) Perfeccionamientos en circuitos transformadores de senal de video.
GB2008905A (en) Circuit for east-west pincushion correction in a colour television receiver
JPS5382110A (en) Compensating circuit for non-linearity
JPS5672546A (en) Distortion compensating circuit
GB1525532A (en) Precorrected television power transmitter arrangement
JPS572185A (en) Color output circuit of color television picture receiver
JPS5763989A (en) Primary color output amplifier of color television picture receiver
JPS56160111A (en) Amplifier of pulse duration modulated signal