Channel selection apparatus
Номер патента: CA1108785A
Опубликовано: 08-09-1981
Автор(ы): Kazumi Kawashima, Keisuke Yamamoto, Masahiro Takeshita, Minoru Ueda
Принадлежит: Matsushita Electric Industrial Co Ltd
Опубликовано: 08-09-1981
Автор(ы): Kazumi Kawashima, Keisuke Yamamoto, Masahiro Takeshita, Minoru Ueda
Принадлежит: Matsushita Electric Industrial Co Ltd
Реферат: CHANNEL SECTION APPARATUS ABSTRACT OF THE DISCLOSURE A channel selection apparatus comprises a counter, a decoder a clock pulse generator and a control circuit for controlling them, and selects a channel by switching a channel selection voltage by selecting a potentiometer. the counter includes cascade-connected flip-flop such that a trailing edge of an AND output of an output of a flip-flop in one stage and a channel selection count input signal triggers a flip-flop in the following stage. The decoder includes a plurality of output transistors and a plurality of parallel-connected transistor sets with common collectors of each of the transistor sets being connected to a base of a corresponding output transistor and input-signals being applied to bases of each of the transistor sets.
Electronic channel selecting apparatus
Номер патента: AU1262276A. Автор: ARAI Takeshi. Владелец: Sanyo Electric Co Ltd. Дата публикации: 1977-10-06.