Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1980-11-25
1982-09-14
Murray, Richard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
3581911, 455289, H04N 544
Patent
active
043498400
ABSTRACT:
In a television receiver having an in-cabinet receiving antenna that has a plurality of electrically controllable states having different radiation reception pattern conditions, an automatic antenna steering apparatus selects one of the controllable patterns. In response to the selection of a channel to be received, the apparatus sequences through each of the plurality of states and determines the relative amplitude of the received signal in each. When the amplitude of received signals in all of the states has been determined, the apparatus selects the state wherein the received signal is of a predetermined amplitude condition. One convenient measure of signal amplitude is an internal AGC signal of the receiver. In one embodiment of the present invention a microcomputer is employed to control the various operations to establish the antenna in the state producing the predetermined amplitude condition.
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Takeda et al., "FM Multipath Distortion in Automobile Receivers Has Been Significantly Reduced by a New Antenna System", IEEE Transactions on Consumer Electronics, vol. CE-26, No. 3, Aug. 1980, p. 263.
Berard, Jr. C. A.
Murray Richard
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
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