KR890003149A - 위성방송 수신용 옥외장치 저잡음 캔버터 - Google Patents

위성방송 수신용 옥외장치 저잡음 캔버터 Download PDF

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Publication number
KR890003149A
KR890003149A KR1019880006479A KR880006479A KR890003149A KR 890003149 A KR890003149 A KR 890003149A KR 1019880006479 A KR1019880006479 A KR 1019880006479A KR 880006479 A KR880006479 A KR 880006479A KR 890003149 A KR890003149 A KR 890003149A
Authority
KR
South Korea
Prior art keywords
low noise
satellite broadcasting
butter
outdoor equipment
equipment low
Prior art date
Application number
KR1019880006479A
Other languages
English (en)
Other versions
KR910003414B1 (ko
Inventor
미요시 야마우찌
미쯔히로 노보루
Original Assignee
쓰지 하루오
샤프 가부시끼가이샤
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
Priority claimed from JP62185877A external-priority patent/JPS6429129A/ja
Priority claimed from JP1987115478U external-priority patent/JPH0522996Y2/ja
Application filed by 쓰지 하루오, 샤프 가부시끼가이샤 filed Critical 쓰지 하루오
Publication of KR890003149A publication Critical patent/KR890003149A/ko
Application granted granted Critical
Publication of KR910003414B1 publication Critical patent/KR910003414B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

내용 없음

Description

위성방송 수신용 옥외장치 저잡음 캔버터
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1도는 본 발명의 한 실시예에서의 한 회로도. 제 2도는 수신작동을 위한 2-밴드의 관계표시도.

Claims (2)

  1. 광대역 저잡음 증폭기, 복수의 증폭기의 출력 신호를 분할하기 위한 전원분할, 전원분할기의 분할신호 각각에 상당하게 제공되는 복수의 밴드통과형 필터와 믹서회로, 그리고 믹서회로의 출력신호를 후단-IF증폭기(IFMP)에 스윗칭을 위한 출력선택회로로 구성되는 것을 특징으로 하는 위성방송수신용 옥외장치 저잡음 컨버터.
  2. 2주파수 밴드를 수신하기 위한 전원공급으로서 사용되는하나의 IF신호터미널을 가지고 있는 IF신호 터미널을 통하여 공급되는 전원공급 전압의 수준에 따라 수신되는 주파수밴드를 변경하는 수단을 특징으로 하는 위성방송수신용 옥외장치 저잡음 컨버터.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880006479A 1987-07-24 1988-05-31 위성방송수신용 옥외장치 저잡음 컨버터 KR910003414B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP87-185877 1987-07-24
JP62-185877 1987-07-24
JP62185877A JPS6429129A (en) 1987-07-24 1987-07-24 Low noise converter for satellite broadcast reception
JP62-115478 1987-07-27
JP1987115478U JPH0522996Y2 (ko) 1987-07-27 1987-07-27
JP87-115478 1987-07-27

Publications (2)

Publication Number Publication Date
KR890003149A true KR890003149A (ko) 1989-04-13
KR910003414B1 KR910003414B1 (ko) 1991-05-30

Family

ID=26453971

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880006479A KR910003414B1 (ko) 1987-07-24 1988-05-31 위성방송수신용 옥외장치 저잡음 컨버터

Country Status (5)

Country Link
US (1) US5027430A (ko)
EP (1) EP0300173B1 (ko)
KR (1) KR910003414B1 (ko)
CA (1) CA1329640C (ko)
DE (1) DE3883454T2 (ko)

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Also Published As

Publication number Publication date
EP0300173B1 (en) 1993-08-25
EP0300173A3 (en) 1989-12-06
US5027430A (en) 1991-06-25
EP0300173A2 (en) 1989-01-25
DE3883454D1 (de) 1993-09-30
KR910003414B1 (ko) 1991-05-30
DE3883454T2 (de) 1994-03-24
CA1329640C (en) 1994-05-17

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