JPH0263418U

JPH0263418U -

Info

Publication number: JPH0263418U
Application number: JP14265488U
Authority: JP
Priority date: 1988-10-31
Filing date: 1988-10-31
Publication date: 1990-05-11

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す回路図、第２
図はアナログ信号とデイジタルデータを説明する
ための図、ａは録音可能な最大値を示す場合、ｂ
はアナログ信号が録音可能な最大値を越えたとき
の様子を示す図、第３図は従来の技術を説明する
ための回路図である。１……レベルメータ用ＩＣ、２……入力端子、
３……コンパレータ、４……ホールド回路、５…
…出力端子、６……レベル表示器、７……「オー
バ」表示器、８，１４……スイツチング回路、９
……音声信号整流回路、１０……音声信号源、１
１……「オーバ」表示用コンパレータ、１２……
半固定ボリユーム、１３……コンデンサである。 Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a diagram for explaining analog signals and digital data, where a indicates the maximum recordable value, and b
3 is a diagram showing what happens when the analog signal exceeds the maximum recordable value, and FIG. 3 is a circuit diagram for explaining the conventional technique. 1...Level meter IC, 2...Input terminal,
3...Comparator, 4...Hold circuit, 5...
...output terminal, 6...level indicator, 7..."over" indicator, 8, 14...switching circuit, 9
...Audio signal rectifier circuit, 10...Audio signal source, 1
1... Comparator for "over" display, 12...
Semi-fixed volume, 13...is a capacitor.

Claims

[Scope of utility model registration request]

A plurality of comparators have a preset reference level and are inverted when an input signal higher than the reference level is applied, and the output of each comparator is transmitted to an output terminal connected to a display circuit to drive a display element. A level meter IC and a second display circuit and a display element that are lit by an input signal higher than the maximum reference level among the reference levels of the IC are separately provided, and the inverted output of the highest comparator of the first level meter circuit A level meter circuit configured to activate a second display circuit and a display element.