JPS60153041U

JPS60153041U - Preset tuner

Info

Publication number: JPS60153041U
Application number: JP4094284U
Authority: JP
Inventors: 小沢　利行
Original assignee: 三洋電機株式会社
Priority date: 1984-03-21
Filing date: 1984-03-21
Publication date: 1985-10-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すブロック図、第２図は
第１図の実施例の動作を説明するためのタイミングチャ
ート、第３図は他の実施例を示す要部回路図、第４図は
他の実施例を示す要部ブロック図である。主な図番の説明、８・・・プログラマブルデイバイダ、
１３ａ〜１３ｎ・・・プリセットスイッチ、１４・・・
メモリスイッチ、１５・・・プリセットメモリ、２０・
・・周波数表示器、２１・・・ＩＦ信号強度判別回路、
２２・・・ＩＦ計数判別回路、２３・・・ＮＡＮＤゲー
ト、２４・・・Ｄフリップフロップ、２７・・・表示素
子、２９・・・タイマー。FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a timing chart for explaining the operation of the embodiment of FIG. 1, and FIG. 3 is a main circuit diagram showing another embodiment. FIG. 4 is a block diagram of main parts showing another embodiment. Explanation of main figure numbers, 8...Programmable divider,
13a-13n...preset switch, 14...
Memory switch, 15... Preset memory, 20.
...Frequency display, 21...IF signal strength determination circuit,
22... IF counting discrimination circuit, 23... NAND gate, 24... D flip-flop, 27... display element, 29... timer.

Claims

[Scope of utility model registration request]

After operating the memory switch, operate one of the multiple preset switches to write a digital signal corresponding to the received frequency into the preset memory.In the preset tuner, determine that the signal strength of the positive signal is greater than or equal to a predetermined value. IF signal strength determining means; IF counting determining means for counting positive signals in response to the operation of the memory switch and determining whether the counting result is within a predetermined range; and display means or sound generating means; A preset tuner characterized in that, when a switch is operated and the IF positive signal is less than a predetermined value or the counting result is outside a predetermined range, the display means or the sound generation means is driven.