JPS5994483U

JPS5994483U - magnetic recording and playback device

Info

Publication number: JPS5994483U
Application number: JP19155282U
Authority: JP
Inventors: 吉彦天田
Original assignee: 三洋電機株式会社; 東京三洋電機株式会社
Priority date: 1982-12-17
Filing date: 1982-12-17
Publication date: 1984-06-27

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 the drawing]

第１図は本考案の磁気録画再生装置の説明のた　　　　
゛めのヘッド配置図、第２図は従来の同装置の要部ブロ
ック図、第３図は本考案の要部ブロック図をゝ示す。主な図番の説明、１・・・ＦＭ信号入力端子、４・・・
ドロップアウト補償回路、５・・・ドロップアウト検出
器、９・・・制御端子、１０・・・第１のスイッチ手段
、１１・・・第２のスイッチ手段、１２・・・第３のス
イッチ手段、１３・・・ＩＨ遅延線。Figure 1 is for explaining the magnetic recording and reproducing device of the present invention.
2 is a block diagram of the main parts of the conventional apparatus, and FIG. 3 is a block diagram of the main parts of the present invention. Explanation of main drawing numbers, 1...FM signal input terminal, 4...
Dropout compensation circuit, 5... Dropout detector, 9... Control terminal, 10... First switch means, 11... Second switch means, 12... Third switch means , 13...IH delay line.

Claims

[Scope of utility model registration request]

A pair of rotating magnets for recording and normal playback - A first magnetic head made of RAD, and a rotating magnet for special playback provided at a position shifted by one horizontal period (IH) from the first magnetic head. In a magnetic recording and reproducing apparatus having a second magnetic head made of RAD, and equipped with an IH delay line and a dropout compensation circuit, the input side of a dropout detector is connected to an FM signal input terminal, and the dropout is detected. an output side of the device is connected to a first switch means, one end of the IH delay line is connected to the FM signal input terminal via a second switch means, and the other end is connected to a third switch means;
One end of the third switch means and one end of the second switch means are connected to an output terminal, an output end of the first switch means is connected to a control terminal of the third switch means, and one end of the second switch means is connected to an output terminal of the third switch means. 1. A magnetic recording and reproducing apparatus characterized in that a head switching pulse terminal is connected to the control terminals of the first and second switch means.