KR830007004A - 고속 스퀠치 회로 - Google Patents

고속 스퀠치 회로 Download PDF

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Publication number
KR830007004A
KR830007004A KR1019810001715A KR810001715A KR830007004A KR 830007004 A KR830007004 A KR 830007004A KR 1019810001715 A KR1019810001715 A KR 1019810001715A KR 810001715 A KR810001715 A KR 810001715A KR 830007004 A KR830007004 A KR 830007004A
Authority
KR
South Korea
Prior art keywords
noise voltage
squelch circuit
high speed
voltage
response
Prior art date
Application number
KR1019810001715A
Other languages
English (en)
Other versions
KR850001145B1 (ko
Inventor
멜빈 데이 찰스
Original Assignee
빈센트 죠셉로너
모토로라 인코포레이티드
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 빈센트 죠셉로너, 모토로라 인코포레이티드 filed Critical 빈센트 죠셉로너
Publication of KR830007004A publication Critical patent/KR830007004A/ko
Application granted granted Critical
Publication of KR850001145B1 publication Critical patent/KR850001145B1/ko

Links

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
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/344—Muting responsive to the amount of noise (noise squelch)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)

Abstract

내용 없음

Description

고속 스켈치 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 신규 스퀄치 회로의 구성도.
제2도는 제1도에서 설명된 수퀄치 제어회로 구성의 구성도.
제3도는 제1도에서 도시된 회로의 상세도.

Claims (1)

  1. 본문에서 설명되고 도면에서 예시된 바와 같이 검출된 잡음전압에 응답하여 작동되는 통신수신기 스켈치회로에 있어서, 여파된 잡음 전압을 유출하도록 검출된 잡음전압을 여파하기 위한 그리고 가청 주파수영역 이상의 차단 주파수를 가지며 또한 고주파수 잡음에 응답하여 그리고 검출된 잡음 전압을 수신하도록 되어 있는 여파기 장치와, 여파된 고주파수 잡음전압에 응답하여 스켈치 제어전압을 유출하기 위하여 상기 여파기 장치에 연결된 제어장치를 포함하는 고속 스켈치회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810001715A 1980-08-06 1981-05-18 고속 스퀄치회로 KR850001145B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/175,606 US4359780A (en) 1980-08-06 1980-08-06 High speed squelch circuit
US175606 1980-08-06

Publications (2)

Publication Number Publication Date
KR830007004A true KR830007004A (ko) 1983-10-12
KR850001145B1 KR850001145B1 (ko) 1985-08-09

Family

ID=22640901

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810001715A KR850001145B1 (ko) 1980-08-06 1981-05-18 고속 스퀄치회로

Country Status (6)

Country Link
US (1) US4359780A (ko)
EP (1) EP0057199A1 (ko)
KR (1) KR850001145B1 (ko)
AU (1) AU7418581A (ko)
CA (1) CA1156723A (ko)
WO (1) WO1982000552A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479250A (en) * 1983-06-10 1984-10-23 Motorola, Inc. Dual audio capture limiter squelch circuit
ATE45252T1 (de) * 1984-11-15 1989-08-15 Autophon Ascom Ag Schaltungsanordnung zur erzeugung eines empfangskriteriums.
ATE79495T1 (de) * 1986-04-03 1992-08-15 Motorola Inc Ukw-empfaenger mit rauschunterdrueckung beim empfang von signalen mit ''raleigh''¨berblendung.
US4748685A (en) * 1986-10-10 1988-05-31 Motorola, Inc. Mobile radio communications system
US5450622A (en) * 1991-07-23 1995-09-12 Ericsson Inc. Method and apparatus for providing a very fast acting noise squelch control system for an RF radio receiver
US6397049B1 (en) * 1999-11-01 2002-05-28 Motorola, Inc. Two-way radio with improved squelch
US6961551B2 (en) * 2002-02-01 2005-11-01 M/A-Com Private Radio Systems, Inc. Dual speed squelch circuit and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596184A (en) * 1969-08-15 1971-07-27 Motorola Inc Squelch circuit with squelch tail elimination
GB1237517A (en) * 1970-02-05 1971-06-30 Pye Ltd Muting arrangement for a communication system
US3628058A (en) * 1970-02-24 1971-12-14 Motorola Inc Integrated dual time constant squelch circuit
US3660765A (en) * 1970-04-13 1972-05-02 Motorola Inc Squelch circuit having short and long time constant filters for squelch tail elimination
US3769592A (en) * 1971-07-14 1973-10-30 Motorola Inc Squench circuit with time delay variable in accordance with strength of received signal
US3805166A (en) * 1972-10-20 1974-04-16 A Paredes Squelch circuit with time constant controlled by signal level
US3934206A (en) * 1974-09-26 1976-01-20 Rockwell International Corporation Receiver with adjustable squelch
US3979679A (en) * 1975-06-30 1976-09-07 California Microwave, Inc. FM demodulator having squelch circuit using bucket brigade delay line

Also Published As

Publication number Publication date
CA1156723A (en) 1983-11-08
US4359780A (en) 1982-11-16
EP0057199A1 (en) 1982-08-11
WO1982000552A1 (en) 1982-02-18
KR850001145B1 (ko) 1985-08-09
AU7418581A (en) 1982-03-02

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