JPS59111372U

JPS59111372U - Magnetic recording and playback device with still playback function

Info

Publication number: JPS59111372U
Application number: JP534683U
Authority: JP
Inventors: 見崎　隆志
Original assignee: 松下電器産業株式会社
Priority date: 1983-01-17
Filing date: 1983-01-17
Publication date: 1984-07-27

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]

図面は本考案の一実施例を示し、第１図はビデオヘッド
の配列を示したシリンダーの構成図、第２図は標準モー
ド時のスチル軌跡図、第３図は第２図のスチル軌跡にお
けるエンベロープ波形図、第４図は長時間モード時のス
チル軌跡図、第５図は第４図におけるスチル軌跡時のエ
ンベロープ波形図である。１・・・テープ移動方向、２・・・ヘッド回転方向、３
・・・隣々接トラックによるエンベロープ、Ａ・・・Ａ
ヘッドによるスチル軌跡中、Ｂ・・・Ｂヘッドによるス
チル軌跡中、Ｐ・・・トラックピッチ、Ｔ・・・有効ト
ラック幅、Ｇ・・・ガートバンド、Ｌ□、Ｒ□川用準モ
ード時のヘッド、Ｌ２．Ｒ２・・・長時間モード時のベ
ッド、α・・・配列角。The drawings show one embodiment of the present invention. Fig. 1 is a configuration diagram of a cylinder showing the arrangement of video heads, Fig. 2 is a still trajectory diagram in standard mode, and Fig. 3 is a diagram showing the still trajectory of Fig. 2. FIG. 4 is a still trajectory diagram in the long-time mode, and FIG. 5 is an envelope waveform diagram in the still trajectory in FIG. 4. 1... Tape movement direction, 2... Head rotation direction, 3
...Envelope by adjacent tracks, A...A
During still trajectory by head, B...During still trajectory by B head, P...Track pitch, T...Effective track width, G...Gart band, L□, R□ in river semi-mode Head, L2. R2... Bed in long time mode, α... Arrangement angle.

Claims

[Scope of utility model registration request]

It has a function to play back standard mode and 2-channel long-time mode, and when in standard mode, recording and playback is performed using a video head with the effective track width of standard mode, and when in long-time mode, the effective track width of long-time mode is used. Recording and playback is performed using a video head with a track width, and both heads are arranged close to each other with a length that is an integral multiple of the period of the horizontal synchronizing signal. 1. A magnetic recording and reproducing apparatus having a still reproducing function, characterized in that said special reproduction is performed using heads having the same azimuth, one of the heads and one of the long-time mode heads.