SE430843B - Strypningsanordning for en radiomottagare - Google Patents

Strypningsanordning for en radiomottagare

Info

Publication number
SE430843B
SE430843B SE7810101A SE7810101A SE430843B SE 430843 B SE430843 B SE 430843B SE 7810101 A SE7810101 A SE 7810101A SE 7810101 A SE7810101 A SE 7810101A SE 430843 B SE430843 B SE 430843B
Authority
SE
Sweden
Prior art keywords
signal
voltage
circuit
time
threshold
Prior art date
Application number
SE7810101A
Other languages
English (en)
Swedish (sv)
Other versions
SE7810101L (sv
Inventor
Iii R J Martin
Original Assignee
Storno As
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 Storno As filed Critical Storno As
Publication of SE7810101L publication Critical patent/SE7810101L/xx
Publication of SE430843B publication Critical patent/SE430843B/sv

Links

Classifications

    • 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
    • H03G3/344—Muting responsive to the amount of noise (noise squelch)

Landscapes

  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
SE7810101A 1977-09-29 1978-09-26 Strypningsanordning for en radiomottagare SE430843B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/838,007 US4132953A (en) 1977-09-29 1977-09-29 Squelch circuit for a radio receiver

Publications (2)

Publication Number Publication Date
SE7810101L SE7810101L (sv) 1979-03-30
SE430843B true SE430843B (sv) 1983-12-12

Family

ID=25276030

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7810101A SE430843B (sv) 1977-09-29 1978-09-26 Strypningsanordning for en radiomottagare

Country Status (7)

Country Link
US (1) US4132953A (da)
JP (1) JPS5459815A (da)
DE (1) DE2840385A1 (da)
DK (1) DK433778A (da)
FR (1) FR2404965A1 (da)
GB (1) GB2006560B (da)
SE (1) SE430843B (da)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909520C3 (de) * 1979-03-10 1981-12-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Dämpfung von Störgeräuschen
JPS5754409A (en) * 1980-09-18 1982-03-31 Toshiba Corp Signal interruption circuit
DE3130341A1 (de) * 1980-09-17 1982-06-16 Hitachi, Ltd., Tokyo Rauschsperre und mit dieser versehener fm-funkempfaenger
WO1987006072A1 (en) * 1986-04-03 1987-10-08 Motorola, Inc. Fm receiver with noise suppression during rayleigh faded received signals
US4991227A (en) * 1988-01-11 1991-02-05 Motorola, Inc. Squelch circuit with variable squelch tail and variable hysteresis
US5060296A (en) * 1989-02-28 1991-10-22 Motorola, Inc. Communication system with squelch control
US5220565A (en) * 1991-05-30 1993-06-15 Motorola, Inc. Selective transmission of encoded voice information representing silence
US5179577A (en) * 1991-06-06 1993-01-12 Digital Equipment Corporation Dynamic threshold data receiver for local area networks
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
WO1993003551A1 (en) * 1991-08-05 1993-02-18 Motorola, Inc. Method and apparatus for prevention of squelch chatter
US5303405A (en) * 1991-09-03 1994-04-12 Motorola, Inc. Comparator switched squelch rectifier
JP3144574B2 (ja) * 1991-11-20 2001-03-12 ローム株式会社 ミューティング制御回路
US5881101A (en) * 1994-09-01 1999-03-09 Harris Corporation Burst serial tone waveform signaling method and device for squelch/wake-up control of an HF transceiver
US6961551B2 (en) * 2002-02-01 2005-11-01 M/A-Com Private Radio Systems, Inc. Dual speed squelch circuit and method

Family Cites Families (6)

* 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
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
US3939431A (en) * 1974-11-25 1976-02-17 Motorola, Inc. Muting circuit for a radio receiver
GB1506510A (en) * 1975-12-29 1978-04-05 Elliott Bros Audio frequency automatic muting arrangements

Also Published As

Publication number Publication date
FR2404965B1 (da) 1985-04-19
SE7810101L (sv) 1979-03-30
GB2006560B (en) 1982-07-21
JPS5459815A (en) 1979-05-14
US4132953A (en) 1979-01-02
GB2006560A (en) 1979-05-02
FR2404965A1 (fr) 1979-04-27
DE2840385A1 (de) 1979-04-05
DK433778A (da) 1979-03-30

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