DK143677C - CIRCUIT FOR NOISE ELIMINATION IN AN FM RECEIVER - Google Patents

CIRCUIT FOR NOISE ELIMINATION IN AN FM RECEIVER

Info

Publication number
DK143677C
DK143677C DK235768A DK235768A DK143677C DK 143677 C DK143677 C DK 143677C DK 235768 A DK235768 A DK 235768A DK 235768 A DK235768 A DK 235768A DK 143677 C DK143677 C DK 143677C
Authority
DK
Denmark
Prior art keywords
receiver
circuit
noise elimination
elimination
noise
Prior art date
Application number
DK235768A
Other languages
Danish (da)
Other versions
DK143677B (en
Inventor
J R Glasser
S J Tomsa
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of DK143677B publication Critical patent/DK143677B/en
Application granted granted Critical
Publication of DK143677C publication Critical patent/DK143677C/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • 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)
DK235768A 1967-06-06 1968-05-22 CIRCUIT FOR NOISE ELIMINATION IN AN FM RECEIVER DK143677C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64387467A 1967-06-06 1967-06-06
US64387467 1967-06-06

Publications (2)

Publication Number Publication Date
DK143677B DK143677B (en) 1981-09-21
DK143677C true DK143677C (en) 1982-03-08

Family

ID=24582534

Family Applications (1)

Application Number Title Priority Date Filing Date
DK235768A DK143677C (en) 1967-06-06 1968-05-22 CIRCUIT FOR NOISE ELIMINATION IN AN FM RECEIVER

Country Status (7)

Country Link
BE (1) BE716156A (en)
DE (1) DE1766486C2 (en)
DK (1) DK143677C (en)
FR (1) FR1566991A (en)
GB (1) GB1174734A (en)
IL (1) IL30085A (en)
NL (1) NL160448C (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067084B (en) * 1959-10-15 Körting Radio Werke G.m.b.H., Grassau (Chiemgau) Circuit arrangement for noise elimination for fading-controlled radio receivers
US2343115A (en) * 1941-04-05 1944-02-29 Galvin Mfg Corp Radio receiver circuit
US2515196A (en) * 1945-11-26 1950-07-18 James C Coe Automatic gain control
US2912571A (en) * 1955-04-19 1959-11-10 Motorola Inc Radio receiver with squelch means in audio section and battery saver in output circuit
US3049710A (en) * 1958-01-02 1962-08-14 Gen Electric Continuous tone-controlled squelch system
US3154740A (en) * 1960-09-06 1964-10-27 Motorola Inc Automatic gain control system utilizing a network containing a short time constant and a long time constant
US3116453A (en) * 1960-11-01 1963-12-31 Gen Dynamics Corp Step automatic gain control system
US3230458A (en) * 1962-05-18 1966-01-18 Collins Radio Co Automatic gain control circuit with fast change of time constant
NL298885A (en) * 1962-10-16

Also Published As

Publication number Publication date
BE716156A (en) 1968-12-06
IL30085A (en) 1971-12-29
DE1766486A1 (en) 1971-08-05
DE1766486C2 (en) 1983-08-04
FR1566991A (en) 1969-05-09
NL6807282A (en) 1968-12-09
IL30085A0 (en) 1968-07-25
NL160448C (en) 1979-10-15
GB1174734A (en) 1969-12-17
DK143677B (en) 1981-09-21

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