MX9305192A - Circuito de control de realimentacion negativa, que tiene una linea comun para señales de entrada y de salida. - Google Patents

Circuito de control de realimentacion negativa, que tiene una linea comun para señales de entrada y de salida.

Info

Publication number
MX9305192A
MX9305192A MX9305192A MX9305192A MX9305192A MX 9305192 A MX9305192 A MX 9305192A MX 9305192 A MX9305192 A MX 9305192A MX 9305192 A MX9305192 A MX 9305192A MX 9305192 A MX9305192 A MX 9305192A
Authority
MX
Mexico
Prior art keywords
local oscillator
output terminal
input
common line
control circuit
Prior art date
Application number
MX9305192A
Other languages
English (en)
Inventor
Leroy Samuel Wignot
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 MX9305192A publication Critical patent/MX9305192A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
    • H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)

Abstract

Se presenta un receptor de televisión que tiene un sintonizador controlado electrónicamente. Un oscilador local controlado (42) provee una señal de oscilador local para el mezclador (18). El oscilador local contiene (42) incluye un primer terminal de entrada para recibir una señal de control para controlar su frecuencia y un primer terminal de salida para proveer una señal de oscilador local de salida. Un circuito (16) inmovilizado en fase, incluye un segundo terminal de entrada para recibir la señal de oscilador local, y un segundo terminal de salida para proveer una señal nuevamente al primer terminal de entrada del oscilador local controlado, para controlar su frecuencia. Por lo menos una porción del acoplamiento entre el primer terminal de salida y el segundo terminal de salida, y el segundo terminal de salida y el primer terminal de salida, tienen una linea común.
MX9305192A 1992-08-28 1993-08-26 Circuito de control de realimentacion negativa, que tiene una linea comun para señales de entrada y de salida. MX9305192A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93748892A 1992-08-28 1992-08-28

Publications (1)

Publication Number Publication Date
MX9305192A true MX9305192A (es) 1994-05-31

Family

ID=25469983

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9305192A MX9305192A (es) 1992-08-28 1993-08-26 Circuito de control de realimentacion negativa, que tiene una linea comun para señales de entrada y de salida.

Country Status (10)

Country Link
US (1) US5535443A (es)
EP (1) EP0639893B1 (es)
JP (1) JP3060352B2 (es)
KR (1) KR100274325B1 (es)
CN (1) CN1052603C (es)
DE (1) DE69328484T2 (es)
ES (1) ES2145020T3 (es)
MX (1) MX9305192A (es)
MY (1) MY109735A (es)
SG (1) SG66227A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815218A (en) * 1995-01-04 1998-09-29 Funai Electric., Ltd Circuit device including RF converter, tuner and if amplifier
JP2974296B2 (ja) * 1997-06-13 1999-11-10 静岡日本電気株式会社 無線選択呼出受信機
US5870439A (en) * 1997-06-18 1999-02-09 Lsi Logic Corporation Satellite receiver tuner chip having reduced digital noise interference
US6194976B1 (en) * 1999-03-29 2001-02-27 Qualcomm Incorporated Multiple band voltage controlled oscillator using impedance scaling
US6504443B1 (en) 2000-05-17 2003-01-07 Nec America, Inc., Common anode varactor tuned LC circuit
JP4434825B2 (ja) * 2003-05-08 2010-03-17 パナソニック株式会社 インパルス波形生成装置
US7672654B2 (en) * 2005-07-08 2010-03-02 Casio Computer Co., Ltd. Broadcasting receiver and method of receiving a broadcasting wave
US9287886B2 (en) 2008-02-29 2016-03-15 Qualcomm Incorporated Dynamic reference frequency for fractional-N Phase-Locked Loop
JP2013058904A (ja) * 2011-09-08 2013-03-28 Alps Electric Co Ltd 位相同期回路及びテレビジョン信号受信回路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959728A (en) * 1974-01-18 1976-05-25 Hitachi, Ltd. Local oscillation circuit for tuner having reduced inter-channel deviation in AFC sensitivity
GB1529116A (en) * 1976-06-25 1978-10-18 Indesit Receiver having a device for tuning the receiver to a selected signal frequency for reception by the receiver
US4160213A (en) * 1977-09-29 1979-07-03 Rca Corporation Mixer injection voltage compensation circuit
US4367558A (en) * 1980-12-22 1983-01-04 Motorola, Inc. Method for automatically searching for an RF station
JPS59190731A (ja) * 1983-04-14 1984-10-29 Yaesu Musen Co Ltd 受信機回路
CN1005305B (zh) * 1985-05-21 1989-09-27 菲利浦光灯制造公司 具有一个射频谐振回路自动调节线路的电视接收机
US4837852A (en) * 1985-06-17 1989-06-06 Toko, Inc. Electronic tuning circuit for AM receiver which is easy to effect tracking adjustment
CN1021869C (zh) * 1989-11-02 1993-08-18 机械电子工业部第三研究所 电视高频调谐器控制接口电路

Also Published As

Publication number Publication date
EP0639893A1 (en) 1995-02-22
DE69328484T2 (de) 2000-09-07
KR940005139A (ko) 1994-03-16
EP0639893B1 (en) 2000-04-26
ES2145020T3 (es) 2000-07-01
CN1052603C (zh) 2000-05-17
SG66227A1 (en) 1999-07-20
US5535443A (en) 1996-07-09
KR100274325B1 (ko) 2000-12-15
DE69328484D1 (de) 2000-05-31
JPH06204805A (ja) 1994-07-22
MY109735A (en) 1997-05-31
CN1083996A (zh) 1994-03-16
JP3060352B2 (ja) 2000-07-10

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees