CA997829A - Selective calling squelch circuit for receiving systems - Google Patents

Selective calling squelch circuit for receiving systems

Info

Publication number
CA997829A
CA997829A CA160,266A CA160266A CA997829A CA 997829 A CA997829 A CA 997829A CA 160266 A CA160266 A CA 160266A CA 997829 A CA997829 A CA 997829A
Authority
CA
Canada
Prior art keywords
receiving systems
selective calling
squelch circuit
squelch
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA160,266A
Other languages
English (en)
Other versions
CA160266S (en
Inventor
William V. Braun
Daniel P. Brown
Albert J. Leitich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
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
Application granted granted Critical
Publication of CA997829A publication Critical patent/CA997829A/en
Expired legal-status Critical Current

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)
CA160,266A 1972-01-17 1972-12-29 Selective calling squelch circuit for receiving systems Expired CA997829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21810772A 1972-01-17 1972-01-17

Publications (1)

Publication Number Publication Date
CA997829A true CA997829A (en) 1976-09-28

Family

ID=22813776

Family Applications (1)

Application Number Title Priority Date Filing Date
CA160,266A Expired CA997829A (en) 1972-01-17 1972-12-29 Selective calling squelch circuit for receiving systems

Country Status (7)

Country Link
US (1) US3758860A (OSRAM)
JP (1) JPS5412005B2 (OSRAM)
CA (1) CA997829A (OSRAM)
DE (1) DE2302229C3 (OSRAM)
FR (1) FR2168454B1 (OSRAM)
GB (1) GB1366471A (OSRAM)
IL (1) IL41304A (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846794A (en) * 1973-03-15 1974-11-05 Baker Ind Inc Alarm retransmission system
US3927376A (en) * 1974-12-23 1975-12-16 Rca Corp Speaker muting system
JPS605649Y2 (ja) * 1976-09-16 1985-02-21 株式会社福井村田製作所 送受信装置
US4233565A (en) * 1979-06-29 1980-11-11 Motorola, Inc. Method and apparatus for a PSK signal detector
US4342120A (en) * 1980-11-10 1982-07-27 The Bendix Corporation Squelch system for use in a multiple carrier AM communications systems receiver
US4430742A (en) 1981-11-20 1984-02-07 Motorola, Inc. Data muting method and apparatus for radio communications systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496467A (en) * 1967-10-13 1970-02-17 Motorola Inc Automatic tone coded squelch circuit for radio communication system
JPS503887B1 (OSRAM) * 1968-08-05 1975-02-12

Also Published As

Publication number Publication date
US3758860A (en) 1973-09-11
DE2302229B2 (de) 1974-03-28
JPS4883711A (OSRAM) 1973-11-08
JPS5412005B2 (OSRAM) 1979-05-19
FR2168454B1 (OSRAM) 1981-09-25
GB1366471A (en) 1974-09-11
DE2302229C3 (de) 1980-06-12
IL41304A0 (en) 1973-04-30
DE2302229A1 (de) 1973-08-02
FR2168454A1 (OSRAM) 1973-08-31
IL41304A (en) 1975-08-31

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