JPS5861586U

JPS5861586U - video tape recorder

Info

Publication number: JPS5861586U
Application number: JP15614781U
Authority: JP
Inventors: 茂三木
Original assignee: 三洋電機株式会社
Priority date: 1981-10-20
Filing date: 1981-10-20
Publication date: 1983-04-25
Also published as: JPH0411435Y2

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図は従来のビデオテープレコーダの一部のブロック
結線図、第２図はこの考案のビデオテープレコーダの１
実施例のブロック結線図である。１・・・混合回路部、２．３・・・第１、第２フィルタ
部、４・・・リミッタ部、ＤＬＹ・・・広帯域遅延線回
路、ＭＩＸＥ・・・第５混合回路、ＳＷＡ・・・ドロッ
プアウト補償スイッチ回路、ＳＷＢ、ＳＷＣ・・・第１
、第２スキュー補正スイッチ回路、ｄｌｏ・・・スキュ
ー出力端子。Figure 1 is a block diagram of a part of a conventional video tape recorder, and Figure 2 is a diagram of a part of the video tape recorder of this invention.
It is a block wiring diagram of an example. DESCRIPTION OF SYMBOLS 1... Mixing circuit section, 2.3... First and second filter sections, 4... Limiter section, DLY... Broadband delay line circuit, MIXE... Fifth mixing circuit, SWA...・Dropout compensation switch circuit, SWB, SWC...1st
, second skew correction switch circuit, dlo...skew output terminal.

Claims

[Claims for Utility Model Registration] ■ Outputting a mixed luminance signal and a mixed color signal by arithmetic processing of a recording video signal inputted during recording, and by arithmetic processing of a reproduced demodulated luminance signal and a reproduced color signal inputted during playback. a mixing circuit unit that outputs a mixed video signal from which crosstalk components have been removed and a mixed noise signal; a broadband delay line circuit provided in the mixing circuit unit that outputs a delayed video signal delayed by a predetermined horizontal period; The mixed luminance signal and mixed color signal of the mixing circuit section are inputted to compensate for the uncorrelated components of the mixed luminance signal, and the mixed video signal and mixed noise signal of the mixing circuit section are inputted to the mixed video signal. The first one compensates for the phaseless component and removes the noise component.
a filter section, which receives the mixed luminance signal through the filter section and outputs a recording luminance signal, and extracts the intrinsic noise component through the first filter section to remove the intrinsic noise component from the mixed video signal; a limiter section that outputs a reproduced video signal; a second filter section that receives the mixed color signal of the mixing circuit section and outputs a recording color signal; and a second filter section that receives the mixed color signal of the mixing circuit section and outputs a recording color signal; a dropout compensation switch circuit that returns and performs dropout compensation of the mixed video signal. ■ A first skew correction switch circuit that feeds back the mixed noise signal of the mixing circuit section to the input side of the wideband delay line circuit, and a first skew correction switch circuit that processes the input video signal of the wideband delay line circuit and the mixed noise signal to generate the input video signal a skew mixer for removing a stroke component of the circuit; a skew output terminal provided in the broadband delay line circuit for outputting a skewed video signal delayed by a predetermined horizontal period; and a reproduced video signal of a limiter section, to which the skewed video signal is input. A video tape recorder according to claim 1, further comprising a second skew correction switch circuit that outputs the skew video signal during skew correction.