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BE638382A - - Google Patents

Info

Publication number
BE638382A
BE638382A BE638382DA BE638382A BE 638382 A BE638382 A BE 638382A BE 638382D A BE638382D A BE 638382DA BE 638382 A BE638382 A BE 638382A
Authority
BE
Belgium
Application number
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.)
Publication of BE638382A publication Critical patent/BE638382A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/025—Selective call decoders
    • H04W88/027—Selective call decoders using frequency address codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/005—Control by a pilot signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H03G3/26—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems
    • 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
    • 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)
BE638382D 1962-10-16 BE638382A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US230881A US3250999A (en) 1962-10-16 1962-10-16 Dual squelch

Publications (1)

Publication Number Publication Date
BE638382A true BE638382A (xx)

Family

ID=22866943

Family Applications (1)

Application Number Title Priority Date Filing Date
BE638382D BE638382A (xx) 1962-10-16

Country Status (6)

Country Link
US (1) US3250999A (xx)
BE (1) BE638382A (xx)
DE (1) DE1441760C3 (xx)
GB (1) GB981158A (xx)
LU (1) LU44618A1 (xx)
NL (1) NL298885A (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344400A (en) * 1964-03-26 1967-09-26 Avco Corp Plural frequency responsive receiver
GB1174734A (en) * 1967-06-06 1969-12-17 Motorola Inc Improvements in Squelch Circuits
US3584304A (en) * 1969-06-11 1971-06-08 Motorola Inc Squelch tail eliminator for dual squelch
US3622892A (en) * 1970-08-13 1971-11-23 Motorola Inc Single pole multifrequency selective squelch
US3654555A (en) * 1970-08-19 1972-04-04 Motorola Inc Carrier and tone squelch circuit with elimination of noise at end of transmission
DE2758714C2 (de) * 1977-12-29 1985-10-10 Neumann Elektronik GmbH, 4330 Mülheim Fernmeldesystem
US4479250A (en) * 1983-06-10 1984-10-23 Motorola, Inc. Dual audio capture limiter squelch circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678384A (en) * 1951-03-30 1954-05-11 Rca Corp Squelch control circuit
US2743361A (en) * 1952-01-23 1956-04-24 Motorola Inc Selective squelch receiver
US3049710A (en) * 1958-01-02 1962-08-14 Gen Electric Continuous tone-controlled squelch system
US2918571A (en) * 1958-07-25 1959-12-22 Motorola Inc Communication system
US3027455A (en) * 1959-07-27 1962-03-27 Motorola Inc Electronic circuit

Also Published As

Publication number Publication date
DE1441760C3 (de) 1975-07-03
US3250999A (en) 1966-05-10
DE1441760A1 (de) 1969-05-22
NL298885A (xx)
GB981158A (en) 1965-01-20
LU44618A1 (xx) 1963-12-14
DE1441760B2 (de) 1974-11-07

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