JPH0314705U

JPH0314705U -

Info

Publication number: JPH0314705U
Application number: JP7187889U
Authority: JP
Priority date: 1989-06-20
Filing date: 1989-06-20
Publication date: 1991-02-14

Description

[Brief explanation of drawings]

第１図はビデオヘツド及び該ヘツドによつて形
成されるトラツクの平面図、第２図及び第３図は
夫々第１図に対応する他の実施例を示す平面図、
第４図は回転ヘツドシリンダーのヘツド配置を示
す平面図、第５図は深層記録方式を説明する磁気
テープの断面図、第６図Ａは本考案のヘツド装置
によるトラツクパターンを示す図、第６図Ｂは本
考案によつて形成されるオーデイオ及びビデオ信
号層の構造を説明する磁気テープの断面図、第７
図Ａは第６図Ａに対応する従来のトラツクパター
ンを示す図、第７図Ｂは第６図Ｂに対応する従来
の磁気テープの断面図、第８図は記録電流と再生
出力の関係を示すグラフである。１……ビデオヘツド、２……オーデイオヘツド
、７，７１……作動ギヤツプ部、８……非磁性部
、４３……オーデイオ信号層、４４……ビデオ信
号層。 FIG. 1 is a plan view of a video head and a track formed by the head; FIGS. 2 and 3 are plan views showing other embodiments corresponding to FIG. 1;
FIG. 4 is a plan view showing the head arrangement of a rotating head cylinder, FIG. 5 is a sectional view of a magnetic tape explaining the deep recording method, FIG. 6A is a diagram showing a track pattern by the head device of the present invention, and FIG. Figure B is a cross-sectional view of a magnetic tape illustrating the structure of the audio and video signal layers formed according to the present invention.
Figure A is a diagram showing a conventional track pattern corresponding to Figure 6A, Figure 7B is a sectional view of a conventional magnetic tape corresponding to Figure 6B, and Figure 8 shows the relationship between recording current and reproduction output. This is a graph showing. DESCRIPTION OF SYMBOLS 1... Video head, 2... Audio head, 7, 71... Working gap part, 8... Non-magnetic part, 43... Audio signal layer, 44... Video signal layer.

Claims

[Scope of utility model registration request]

A rotating head cylinder 3 is equipped with a video head 1 and an audio head 2 with a predetermined angle difference between them. In a rotary head device of the deep recording type in which signals are recorded overlappingly on the surface layer of the track by the video head 1, the abutting portions of the pair of core halves 5 and 51 constituting the video head 1 are provided on the same surface. 1. A rotary head device characterized in that a plurality of working gap parts 7, 71 are formed extending from one side to the other, and a non-magnetic part 8 is interposed between each working gap part.