JPS6221684U

JPS6221684U -

Info

Publication number: JPS6221684U
Application number: JP10749985U
Authority: JP
Priority date: 1985-07-12
Filing date: 1985-07-12
Publication date: 1987-02-09

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による磁気記録再
生装置の構成を示すブロツク図、第２図、第３図
はそれぞれその動作を説明するタイムチヤート図
、第４図はこの考案の他の実施例の構成を示す図
、第５図ａは従来装置の構成を示す模式図、第５
図ｂは磁気テープにビデオ信号が記録された様子
を示す図、第５図ｃは本考案において磁気テープ
上にビデオ信号が記録された様子を示した図であ
る。図において、３は同期合せ回路、４は第１のス
イツチ回路、５はＶＴＲ、６は１フイールドデイ
レイ回路、７は第２のスイツチ回路である。なお
図中同一符号は同一又は相当部分を示す。 Fig. 1 is a block diagram showing the configuration of a magnetic recording/reproducing device according to one embodiment of this invention, Figs. 2 and 3 are time charts explaining its operation, and Fig. 4 is another embodiment of this invention. Figure 5a is a schematic diagram showing the configuration of a conventional device;
FIG. 5B is a diagram showing how video signals are recorded on the magnetic tape, and FIG. 5C is a diagram showing how the video signals are recorded on the magnetic tape in the present invention. In the figure, 3 is a synchronization circuit, 4 is a first switch circuit, 5 is a VTR, 6 is a 1-field delay circuit, and 7 is a second switch circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) The second of the different first and second video signals
a first delay circuit that delays the video signal by a maximum of one field period; a first switch circuit that alternately switches between the output of the first delay circuit and the first video signal; and the first switch circuit. a second delay circuit that delays a reproduced output video signal of the magnetic recording and reproducing unit by one field period; and an output signal of the second delay circuit and the reproduced output video signal. 1. A magnetic recording/reproducing device comprising: a second switch circuit that alternately switches and outputs the output signal. (2) The first delay circuit controls the second video signal so that the position of the vertical synchronization signal of the second video signal to be delayed matches the position of the vertical synchronization signal of the first video signal not to be delayed. A magnetic recording and reproducing device according to claim (1) of the utility model registration claim. (3) The first switch circuit alternately switches and outputs the first video signal and the output video signal of the first delay circuit for each field in synchronization with a vertical synchronization signal. A magnetic recording and reproducing device according to claim 1 or 2 of the utility model registration claim. (4) The second switch circuit alternately switches and outputs the reproduced output video signal and the reproduced video signal delayed by the second delay circuit for one field period for each field in synchronization with the vertical synchronization signal. 2. A magnetic recording and reproducing device according to any one of claims (1) to (3) for utility model registration.