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公开(公告)号:KR810001211B1
公开(公告)日:1981-09-28
申请号:KR770000379
申请日:1977-02-21
Applicant: MOTOROLA INC
IPC: H04B1/10
Abstract: The radio receiver includes a blanker cct.(12) for muting the receiver in response to interfering noise signals. A transistor switch, when biased to its nonconducting state, inhibits blanker action. The transistor is biased to nonconduction when the receiver provided automatic gain control level is below the threshold voltage of the transistor. An adjustment is provided for controlling the AGC level at which blanker inhibit is introduced. Temperature compensating cct. maintains inhibit action response at the threshold voltage with changes in ambient temperature.
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公开(公告)号:BR7701801A
公开(公告)日:1978-01-24
申请号:BR7701801
申请日:1977-03-24
Applicant: MOTOROLA INC
Abstract: A radio receiver includes a blanker circuit for muting the receiver in response to interfering noise signals. The invention contemplates a transistor switch which, when biased to its nonconducting state, inhibits blanker action. The transistor is biased to nonconduction when the receiver provided automatic gain control (AGC) level is below the threshold voltage of the transistor. An adjustment is provided for controlling the AGC level at which blanker inhibit is introduced. Temperature compensating circuitry maintains inhibit action response at the threshold voltage with changes in ambient temperature.
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