Station selection indicating device
First Claim
1. A multiband radio receiver with an electronic preset tuning system having an up-down counter, a read-write memory which is addressed by the output signals from a band select switch and channel select switches to store the count output of said up-down counter and to deliver read-out information to said up-down counter in response to write and load signals, respectively, and a control section for providing said write and load signals in response to the outputs of a preset switch and said channel select switches and band select switch, the improvement characterized in that said multiband radio receiver further includes a display section for indicating the most recently energized channel select switch, said display section comprising:
- a latch circuit having a plurality of input terminals and a plurality of corresponding output terminals, said latch circuit receiving output signals from said channel select switches as its inputs and providing a latch output signal on the output terminal corresponding to the most recently energized channel select switch; and
a plurality of indicating elements disposed adjacent said channel select switches and connected to said latch output terminals, said indicating elements being energized by the output signal from said latch circuit and said load signal so that the indicating element adjacent the most recently energized channel select switch is energized and remains energized even when the band select switch is switched.
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Accused Products
Abstract
During preset station selection operation in a digital receiver the station selection switch most recently operated is indicated by a light so as to prevent erroneous operation at the same switch again.
27 Citations
3 Claims
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1. A multiband radio receiver with an electronic preset tuning system having an up-down counter, a read-write memory which is addressed by the output signals from a band select switch and channel select switches to store the count output of said up-down counter and to deliver read-out information to said up-down counter in response to write and load signals, respectively, and a control section for providing said write and load signals in response to the outputs of a preset switch and said channel select switches and band select switch, the improvement characterized in that said multiband radio receiver further includes a display section for indicating the most recently energized channel select switch, said display section comprising:
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a latch circuit having a plurality of input terminals and a plurality of corresponding output terminals, said latch circuit receiving output signals from said channel select switches as its inputs and providing a latch output signal on the output terminal corresponding to the most recently energized channel select switch; and a plurality of indicating elements disposed adjacent said channel select switches and connected to said latch output terminals, said indicating elements being energized by the output signal from said latch circuit and said load signal so that the indicating element adjacent the most recently energized channel select switch is energized and remains energized even when the band select switch is switched. - View Dependent Claims (2, 3)
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Specification