JPS5877963U

JPS5877963U - FM modulated signal recording/reproducing device

Info

Publication number: JPS5877963U
Application number: JP17279181U
Authority: JP
Inventors: 小南　久典; 匡尾末
Original assignee: ソニー株式会社
Priority date: 1981-11-20
Filing date: 1981-11-20
Publication date: 1983-05-26

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図は分割ＦＭ変調方式の説明に用いる波形図、第２
図はこの考案を適用しうる記録再生装置の一例のヘッド
構成及びトラックパターンを示す路線図、第３図はこの
考案の一実施例の記録側の構成を示すブロック図、第４
図及び第６図はこの考案の一実施例の動作説明に用いる
波形図、第５図はこの考案の一実施例の再生側の構成を
示すブロック図、第７図はこの考案の一実施例における
遅延素子を示す図である。８・・・・・・ＦＭ変調回路、９．１０・・・・・・フ
リップフロップ、２４．２５・・・・・・可変遅延回路
、２８゜２９・・・・・・セレクタ、３１・・・・・・
遅延回路、３６・・・・・・エンコーダ、３７．４２・
・・・・・ＦＭ復調回路。第１図Figure 1 is a waveform diagram used to explain the split FM modulation method;
The figure is a route diagram showing the head configuration and track pattern of an example of a recording/reproducing apparatus to which this invention can be applied, FIG. 3 is a block diagram showing the recording side configuration of an embodiment of this invention, and FIG.
6 and 6 are waveform diagrams used to explain the operation of an embodiment of this invention, FIG. 5 is a block diagram showing the configuration of the playback side of an embodiment of this invention, and FIG. 7 is an embodiment of this invention. FIG. 3 is a diagram showing a delay element in FIG. 8...FM modulation circuit, 9.10...Flip-flop, 24.25...Variable delay circuit, 28°29...Selector, 31...・・・・・・
Delay circuit, 36...Encoder, 37.42.
...FM demodulation circuit. Figure 1

Claims

[Claims for Utility Model Registration] 1. FM modulated signals obtained by FM modulating a video signal into 2n pieces (n" 1m2.3.
In a recording/reproducing device for recording/reproducing FM modulated signals which decomposes the signal into signals of Each of the 2n signals recorded and reproduced is supplied to the variable delay circuit, the reference signals included in each of the 2n signals are compared in phase, and the phase comparison output is used to control the variable delay circuit. An FM modulated signal recording and reproducing device which controls the delay amount of the variable delay circuit and synthesizes 2n signals obtained from the output of the variable delay circuit to perform FM demodulation. 2. The variable delay circuit has multiple ECL elements connected in cascade,
2. The recording and reproducing apparatus for FM modulated signals according to claim 1, wherein taps are derived from between the stages and the taps are switched.