Tuners – Combined diverse-type tuners
Patent
1978-12-20
1980-04-29
Gensler, Paul L.
Tuners
Combined diverse-type tuners
74 1041, 74 106, 334 51, 334 87, H03J 530
Patent
active
042008506
ABSTRACT:
A combination VHF and UHF tuner is provided in which a common station selector shaft may be rotated a number of revolutions to cover the seventy stations in the UHF band. The common selector shaft is provided with twenty-four detent positions per revolution and in alternate positions of the shaft the twelve VHF stations in the VHF band are received. As the common selector shaft is rotated through several revolutions the VHF stations are repeatedly received but are interspersed with different individual stations in the UHF band. Accordingly, no matter what UHF station is being received, all of the VHF stations are always within one turn of the common selector shaft. In many mixed UHF-VHF reception areas a single turn of the common selector shaft is sufficient to select all of the UHF stations as well as all of the VHF stations which are broadcasting in that area. Also, any UHF station anywhere in the UHF band is selected with the same ease of selection as the interspersed VHF stations so that true comparability between VHF and UHF reception is achieved.
A single readout window is provided which displays alternately and sequentially each individual channel number, whether UHF or VHF, in numerals of identical size and legibility. A common fine tuning shaft for both UHF and VHF is provided concentric with the common station selector shaft. VHF fine tuning may be either of the memory or nonmemory type.
REFERENCES:
patent: 3038346 (1962-06-01), MacFarland
patent: 3234490 (1966-02-01), Dickinson et al.
patent: 3513418 (1970-05-01), Schwartz
patent: 3593226 (1971-07-01), Weigel
patent: 3618561 (1971-11-01), Wallis et al.
patent: 3689853 (1972-09-01), Badger et al.
patent: 3886890 (1975-06-01), Gibson et al.
patent: 3972240 (1976-08-01), Valdettaro
patent: 3973229 (1976-08-01), Weigel
patent: 3990315 (1976-11-01), Weigel
Gensler Paul L.
Sarkes Tarzian, Inc.
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