JPH0212734U

JPH0212734U -

Info

Publication number: JPH0212734U
Application number: JP8954388U
Authority: JP
Priority date: 1988-07-06
Filing date: 1988-07-06
Publication date: 1990-01-26

Description

[Brief explanation of drawings]

第１図は記録時の本考案の実施例を示す図、第
２図は記録信号の説明図、第３図は再生時の本考
案の実施例を示す図である。２……連続周期波発生器、３……第１のパルス
発生器、４……第２のパルス発生器、５……合成
器、６……第１の記録再生機器、７……第２の記
録再生機器、８……第１の分離器、９……第２の
分離器、１０……第１のカウンタ、１１……第２
のカウンタ、１２……比較器、１３……位相差検
出器、１４……制御器。 FIG. 1 is a diagram showing an embodiment of the present invention during recording, FIG. 2 is an explanatory diagram of a recording signal, and FIG. 3 is a diagram showing an embodiment of the present invention during reproduction. 2... Continuous periodic wave generator, 3... First pulse generator, 4... Second pulse generator, 5... Synthesizer, 6... First recording/reproducing device, 7... Second recording and reproducing equipment, 8... first separator, 9... second separator, 10... first counter, 11... second
counter, 12... comparator, 13... phase difference detector, 14... controller.

Claims

[Claims for Utility Model Registration] (1) Continuous periodic wave generating means for generating a continuous periodic wave with a period T ₀ , and first pulse generating means generating a pulse P with a period T ₁ such that T ₁ >>T ₀ and a second pulse generating means that generates the pulse Q alternately with the pulse P at a period _T2 different from the period _T1 , and combines the outputs of the respective means and outputs them in parallel on a plurality of recording media. 1. A parallel synchronous operation device for a recording/reproducing device, characterized in that it records data simultaneously. (2) The parallel synchronous operation device for recording and reproducing equipment according to claim 1, wherein said second pulse generating means is means for generating pulses Q at sequentially varying time intervals in response to said pulse P. (3) A recording periodic wave with a period T ₀ recorded on the first and second recording media, and a period T 1 with a period T ₁ >> _T ₀ The pulses P and the pulses P alternate with each other and have a period T.
A pulse P having a period _T and a period _T2 different from 1 is reproduced by first and second recording and reproducing devices operating in parallel, respectively, and a pulse P obtained by the first recording and reproducing device is obtained.
a first counting means for counting the continuous periodic waves between the pulse P and the pulse Q; and a first counting means for counting the continuous periodic waves between the pulse P and the pulse Q obtained from the second recording/reproducing device. 2 counting means, comparison means for comparing the outputs of the first and second counting means, and phase difference detection for detecting the phase difference between the continuous periodic waves reproduced by the first and second recording and reproducing devices. and an operation control means for controlling the operation of the first recording and reproducing apparatus based on the output of the comparing means and the output of the phase difference detecting means.