公开(公告)号：WO1993010524A1

公开(公告)日：1993-05-27

申请号：PCT/JP1992001488

申请日：1992-11-13

Applicant: CITIZEN WATCH CO., LTD. ,  WAKASUGI, Makoto

Inventor： CITIZEN WATCH CO., LTD.

IPC: G11B05/265

CPC classification number: G11B5/105 ,  G11B5/265

Abstract: A composite magnetic core (10) is held by a slider (20) having two noses (25) for preventing the core (10) from falling. On the surfaces opposed to each other of the two noses (25), two protrusive contacting parts (26), with which contacted is the composite magnetic core inserted into a core slit (22) of the slider, are formed respectively. Each contacting part (26) extends in the direction of the height of each nose (25). Thereby, the slider can be so molded in one body that the distance between the two noses is adjusted more accurately in agreement with the thickness of the composite magnetic core. As a result, the composite magnetic core is prevented surely from falling, and can be aligned with the slider, accurately.

Abstract translation: 复合磁芯（10）由具有两个鼻（25）的滑块（20）保持，用于防止芯（10）掉落。 在两个鼻部（25）相对的表面上，分别形成两个突出接触部分（26），其中接合的是复合磁芯插入到滑块的芯狭缝（22）中。 每个接触部分（26）沿着每个鼻部（25）的高度方向延伸。 因此，滑块可以一体地模制成两个鼻部之间的距离与复合磁芯的厚度一致地被更精确地调节。 结果，可以可靠地防止复合磁芯的下落，并且可以准确地与滑块对准。

公开(公告)号：WO1996030897A2

公开(公告)日：1996-10-03

申请号：PCT/IB1996000185

申请日：1996-03-11

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  DRAAISMA, Eeltje, Aize ,  HOOGENDOORN, Abraham

IPC: G11B05/265

CPC classification number: G11B5/3967 ,  G11B5/00817 ,  G11B5/2652 ,  G11B5/2654 ,  G11B5/29 ,  G11B5/3103 ,  G11B5/313 ,  G11B5/332 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/4893 ,  G11B5/5508 ,  G11B5/58 ,  G11B5/584 ,  G11B5/596 ,  G11B5/59633

Abstract: Write head, particularly a buried servowrite head provided with a head face (21) having a longitudinal direction (L) along which a magnetic recording medium can be relatively moved with respect to the magnetic head, and a width direction (W) oriented transversely to the longitudinal direction. In order to write signals simultaneously in various tracks the write head is provided with a structure having integrated, juxtaposed write units (25a; 25b) extending substantially transversely to the longitudinal direction and the width direction and each being provided with at least one write gap (27a; 27b). One write gap of the one write unit and one write gap of the other write unit of every two adjacent write units are situated in mutually different planes (P1; P2) which are oriented substantially transversely to the longitudinal direction.

Abstract translation: 写头，特别是具有头纵向（L）的头表面（21）的埋入式水平头，磁性记录介质可以相对于磁头相对于其移动，宽度方向（W）横向于 纵向。 为了在各种轨道中同时写入信号，写头具有一个结构，该结构具有基本上横向于纵向方向和宽度方向延伸的并置延伸的写入单元（25a; 25b），并且每个都具有至少一个写入间隙 27a; 27b）。 每两个相邻写入单元的一个写入单元和另一个写入单元的一个写入间隙的一个写入间隙位于基本上横向于纵向取向的相互不同的平面（P1; P2）中。

公开(公告)号：WO1992002014A1

公开(公告)日：1992-02-06

申请号：PCT/JP1991000945

申请日：1991-07-16

Applicant: KABUSHIKI KAISHA CSK ,  NIHON CARD CENTER KABUSHIKI KAISHA ,  IZAWA, Shigeru ,  SUZUKI, Hidefumi

Inventor： KABUSHIKI KAISHA CSK ,  NIHON CARD CENTER KABUSHIKI KAISHA

IPC: G11B05/265

CPC classification number: G11B5/488 ,  G06K5/02 ,  G06K7/084 ,  G11B5/265

Abstract: A magnetic head (1) which reads/writes data magnetically from/on a magnetic recording medium is provided with a writing head (2) dedicated to writing of data and two reading heads (3a, 3b) dedicated to reading of data. Since the reading heads (3a, 3b) are provided on both sides of the writing head (2) in the direction of a data track (11) of the magnetic recording medium and two magnetic shielding plates are provided between the writing head (2) and the respective reading heads (3a, 3b) respectively, the processing of data comprising: 1) reading of data, 2) writing of data and 3) verifying of data can be performed in two steps, and the processing speed can be improved. Also, the processing of the data recorded in magnetic bar codes which comprises: 1) erasing of data, 2) verifying of data, 3) writing of data and 4) verifying of data can be performed in two steps too, and the processing speed thereof is also improved.

Abstract translation: 从磁记录介质上磁性地读取/写入数据的磁头（1）具有专用于数据写入的写入头（2）和用于读取数据的两个读取头（3a，3b）。 由于读磁头（3a，3b）沿着磁记录介质的数据磁道（11）的方向设置在写磁头（2）的两侧，并且两个磁屏蔽板设置在写头（2） 和各自的读取头（3a，3b），数据的处理包括：1）数据的读取，2）数据的写入和3）数据的验证可以分两步执行，并且可以提高处理速度。 另外，记录在磁条码中的数据的处理包括：1）擦除数据，2）数据验证，3）数据写入，4）数据验证可以分两步执行，处理速度 也得到改善。

公开(公告)号：WO1989009466A1

公开(公告)日：1989-10-05

申请号：PCT/US1989001045

申请日：1989-03-14

Applicant: CARLISLE

Inventor： CARLISLE ,  EGGEBEEN, James, A.

IPC: G11B05/265

CPC classification number: G11B5/58 ,  G11B5/488 ,  G11B5/584

Abstract: The magnetic head (20), and method of its construction, for placing multiple, high tolerance servo information tracks (36) in evenly spaced configuration across the width of a magnetic medium (32) in a single pass of the magnetic head over the medium. The head comprises a monitoring fixture which secures a full-width write transducer (24), in tandem with a multiple-track write transducer (26). Preferably, the transducers are angularly skewed with respect to the travel direction of the magnetic medium, but are substantially parallel to each other. In operation, the magnetic medium first passes adjacent the full-width write transducer which writes servo pattern across the width of the magnetic medium at a first frequency. The magnetic medium next passes adjacent the multiple-track write transducer which writes servo information onto multiple tracks in the magnetic medium at a second frequency.

Abstract translation: 磁头（20）及其结构的方法，用于在磁性介质（32）的宽度上以均匀间隔的配置将多个高容差伺服信息轨迹（36）放置在磁头的单次通过介质上 。 头部包括与多轨写入传感器（26）串联的固定全宽写入传感器（24）的监视固定装置。 优选地，换能器相对于磁介质的行进方向成角度地倾斜，但是基本上彼此平行。 在操作中，磁介质首先穿过全宽写入传感器，该写入传感器以第一频率跨越磁介质的宽度写入伺服模式。 接下来磁介质通过多磁道写入传感器，其以第二频率将伺服信息写入到磁介质中的多个磁道上。

公开(公告)号：WO1986002189A1

公开(公告)日：1986-04-10

申请号：PCT/JP1985000553

申请日：1985-10-04

Applicant: OLYMPUS OPTICAL CO., LTD. ,  YUNOKI, Yutaka ,  INOUE, Manabu ,  WATANABE, Hiroyuki

Inventor： OLYMPUS OPTICAL CO., LTD.

IPC: G11B05/265

CPC classification number: G11B19/02 ,  G11B5/012 ,  G11B5/035 ,  G11B5/17 ,  G11B5/265 ,  G11B5/29 ,  G11B5/31 ,  G11B5/3103 ,  G11B5/3116

Abstract: A compound magnetic head having a recording and reproduction head unit (6A) in which a plurality of film heads are joined to each other so that head gaps (R/W-1, R/W-2...) are arranged at predetermined intervals in the widthwise direction of tracks (T1, T2...), and an erasing head unit (6B) in which a plurality of bulk heads, which correspond to the film heads, are joined to each other so that head gaps (E1, E2...) are arranged at predetermined intervals in the widthwise direction of the tracks (T1, T2), the recording and reproduction head unit (6A) and erasing head unit (6B) being joined to each other in the lengthwise direction of the tracks (T1, T2) so that the opposed head gaps (R/W-1), (E1); (R/W-2), (E2) therein are comparatively close to each other. A plurality of bulk heads (60A) may be used instead of the film heads. Change-over amplifier means (SW1-SW4, 77) may be added to the two magnetic heads so that a predetermined voltage dividing signal consisting of a reproduction signal from one magnetic signal differentially works even on a reproduction signal from the other magnetic head. In order to increase the level of a signal picked up by a head tip (6) provided on a base (7), step-up transformers (31, 32) may be set on the base (7). Also, a recording and reproduction change-over switch circuit (100), a recording amplifier (93) and a differential input amplifier (90), which consist of hybrid IC's, may be provided on the base (7).