SG76484G - Radio receiver including a frequencylocked loop and a muting circuit - Google Patents

Radio receiver including a frequencylocked loop and a muting circuit

Info

Publication number
SG76484G
SG76484G SG76484A SG76484A SG76484G SG 76484 G SG76484 G SG 76484G SG 76484 A SG76484 A SG 76484A SG 76484 A SG76484 A SG 76484A SG 76484 G SG76484 G SG 76484G
Authority
SG
Singapore
Prior art keywords
frequencylocked
loop
radio receiver
receiver including
muting circuit
Prior art date
Application number
SG76484A
Original Assignee
Philips Nv
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 NLAANVRAGE7906602,A external-priority patent/NL184594C/en
Application filed by Philips Nv filed Critical Philips Nv
Publication of SG76484G publication Critical patent/SG76484G/en

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 or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/004—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling an oscillator, e.g. the local oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
SG76484A 1979-09-04 1984-10-31 Radio receiver including a frequencylocked loop and a muting circuit SG76484G (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NLAANVRAGE7906602,A NL184594C (en) 1979-09-04 1979-09-04 RADIO RECEIVER EQUIPPED WITH A FREQUENCY KEYED LOOP WITH AUDIOFREQUENT FEEDBACK AND A STEAM SWITCH.
GB8028384A GB2059702B (en) 1979-09-04 1980-09-03 Muting a radio receiver which includes a frequency-locked loop tuning circuit

Publications (1)

Publication Number Publication Date
SG76484G true SG76484G (en) 1985-04-26

Family

ID=26276757

Family Applications (2)

Application Number Title Priority Date Filing Date
SG76584A SG76584G (en) 1979-09-04 1984-10-31 Radio receiver including a muting circuit
SG76484A SG76484G (en) 1979-09-04 1984-10-31 Radio receiver including a frequencylocked loop and a muting circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SG76584A SG76584G (en) 1979-09-04 1984-10-31 Radio receiver including a muting circuit

Country Status (2)

Country Link
GB (1) GB2122827B (en)
SG (2) SG76584G (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502967A (en) * 1985-09-19 1987-04-16 Philips Nv ANGLE DEMODULATOR.
DE4020694A1 (en) * 1990-06-29 1992-01-02 Philips Patentverwaltung RADIO RECEIVER WITH ACOUSTIC SIGNAL
US5327457A (en) * 1991-09-13 1994-07-05 Motorola, Inc. Operation indicative background noise in a digital receiver
DE10130052A1 (en) * 2001-06-21 2003-01-16 Harman Becker Automotive Sys Frequency search in a radio receiver

Also Published As

Publication number Publication date
SG76584G (en) 1985-04-26
GB8312990D0 (en) 1983-06-15
GB2122827A (en) 1984-01-18
GB2122827B (en) 1984-06-27

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