Receiver having a measurement instrument which is used as a tuning scale
AssigneeU.S. Philips Corporation
InventorJohan W. Beunders
Life of this patent
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Abstract
With a receiver, tunable by means of a tuning voltage, which receiver is provided with a measuring instrument as a tuning scale, a convenient adjustment of presetting potentiometers to transmitters found by means of a main tuning device is enabled by a periodically switching of the measuring instrument between the relevant presetting potentiometer and the main tuning device.
Claims4
A receiver comprising a tuning section, an adjustable tuning signal source means for supplying to said section an electrical quantity corresponding to a frequency, a presettable tuning signal source means for supplying to said section an electrical quantity corresponding to a frequency, said electrical quantities causing said tuning section to be tuned to said corresponding frequencies respectively, a measuring instrument means for indicating the frequency to which an electrical quantity supplied by one of said sources corresponds, and means for providing presetting of said presettable source to an electrical quantity equal to an electrical quantity of said adjustable source including periodic commutator means coupled to said measuring instrument and source and means for alternately coupling each of said source means to said measuring instrument means.
Dependencies are inferred from the claim text.