CA1283709C - Low noise converter - Google Patents

Low noise converter

Info

Publication number
CA1283709C
CA1283709C CA000571244A CA571244A CA1283709C CA 1283709 C CA1283709 C CA 1283709C CA 000571244 A CA000571244 A CA 000571244A CA 571244 A CA571244 A CA 571244A CA 1283709 C CA1283709 C CA 1283709C
Authority
CA
Canada
Prior art keywords
voltage
supply voltage
power supply
switch means
band
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
CA000571244A
Other languages
English (en)
French (fr)
Inventor
Mitsuhiro Noboru
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of CA1283709C publication Critical patent/CA1283709C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)
CA000571244A 1987-07-27 1988-07-06 Low noise converter Expired - Lifetime CA1283709C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-115479 1987-07-27
JP1987115479U JPS6421536U (en, 2012) 1987-07-27 1987-07-27

Publications (1)

Publication Number Publication Date
CA1283709C true CA1283709C (en) 1991-04-30

Family

ID=14663541

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000571244A Expired - Lifetime CA1283709C (en) 1987-07-27 1988-07-06 Low noise converter

Country Status (6)

Country Link
US (1) US4955076A (en, 2012)
EP (1) EP0301839B1 (en, 2012)
JP (1) JPS6421536U (en, 2012)
KR (1) KR930000224Y1 (en, 2012)
CA (1) CA1283709C (en, 2012)
DE (1) DE3866461D1 (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157786A (en) * 1990-08-31 1992-10-20 Thomson Consumer Electronics Biasing networks for balanced mixers
JP4513562B2 (ja) * 2004-12-28 2010-07-28 アンデン株式会社 リレー駆動回路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA948727A (en) * 1972-04-07 1974-06-04 Michael W. Mclernon Signal receiver with a plurality of tuners and automatic switching system for cyclically energizing the same
US3924192A (en) * 1974-06-03 1975-12-02 Rca Corp Multiband random channel address crystal-lock tuning system
JPS5850665Y2 (ja) * 1977-06-02 1983-11-18 ホーチキ株式会社 増幅器トラップ回路の遠隔制御装置
JPS56166612A (en) * 1980-05-26 1981-12-21 Pioneer Electronic Corp Level shifting circuit
US4672687A (en) * 1985-01-29 1987-06-09 Satellite Technology Services, Inc. Polarity switch for satellite television receiver
JPS62115478A (ja) * 1985-11-15 1987-05-27 Canon Inc 画像形成装置

Also Published As

Publication number Publication date
EP0301839B1 (en) 1991-11-27
US4955076A (en) 1990-09-04
KR930000224Y1 (ko) 1993-01-18
EP0301839A3 (en) 1989-05-03
JPS6421536U (en, 2012) 1989-02-02
EP0301839A2 (en) 1989-02-01
DE3866461D1 (de) 1992-01-09

Similar Documents

Publication Publication Date Title
US5387820A (en) Power supply circuit
US5159543A (en) Interface circuit including dc/dc converter
US6133801A (en) Crystal oscillation circuit
EP0227458B1 (en) Diversity receiver
TW345772B (en) Low drop-out switching regulator architecture
US6147545A (en) Bridge control circuit for eliminating shoot-through current
EP0772292B1 (en) RF power amplifiers
US5722089A (en) Antenna control device for a radio communication apparatus having a plurality of antennas
CA1283709C (en) Low noise converter
EP0845855A2 (en) Voltage controlled oscillator
US4591807A (en) Low power, low voltage oscillator
US5325074A (en) Oscillator with supply voltage changeover according to activated and disabled states of a microcomputer
US4882502A (en) Integrated circuit for controlling the loads of automobile circuitry
CA2113761A1 (en) A current-controlled oscillator
DE3566764D1 (en) Television receiver stand-by circuit
US5015870A (en) Voltage supply circuit
US4588902A (en) Analog switching circuit with Zener diode input clamp
US3339140A (en) Solid-state two-way radio switching system application
US4691128A (en) Circuit for coupling a signal processing device to a transmission line
JPS59205831A (ja) リモ−ト切換回路の構造
JPS57204928A (en) Stabilized power supply circuit
JPS6489822A (en) Radio receiver
JPS6464528A (en) Output voltage switching circuit
WO1987007991A1 (en) Local oscillation apparatus
KR100279374B1 (ko) 무선모뎀의 전원회로

Legal Events

Date Code Title Description
MKEX Expiry