1977-07-14
1980-02-05
Martin, John C.
H04B 132
Patent
active
041874641
ABSTRACT:
To lock out certain channels in a scanning receiver, a counter in the scanning control circuit is manually stepped to the channel to be locked out and a signal is recorded in a memory at that point by depressing a switch while the memory is addressed by the circuitry which causes scanning. When the scanning circuit thereafter reaches the same channel, the address of that channel causes a readout from the memory which electronically inhibits the scanning of the locked-out channel. With minor modification, the circuitry may accommodate other electrically recorded switching operations such as band switching operations and priority operations.
REFERENCES:
patent: 3801914 (1974-04-01), Imazeki
patent: 3821651 (1974-06-01), Fathauer et al.
patent: 3919646 (1975-11-01), Morgan
patent: 3999131 (1976-12-01), Fukuda
patent: 4020479 (1977-04-01), Caspari et al.
patent: 4075567 (1978-02-01), Klank
SBE, Opti*Scan, Printed 8/1976.
Holmes Roy L.
Lea Jeffrey G.
Yiu Joseph T.
Carney Vincent L.
Chin Tommy P.
Hy-Gain de Puerto Rico, Inc.
Martin John C.
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