公开(公告)号：US4686596A

公开(公告)日：1987-08-11

申请号：US749938

申请日：1985-06-27

Applicant: John C. Kraemer ,  Paul R. Iverson

Inventor： John C. Kraemer ,  Paul R. Iverson

IPC: G11B5/265 ,  G11B5/10 ,  G11B5/105 ,  G11B5/127 ,  G11B5/16 ,  G11B5/22

CPC classification number: G11B5/10

Abstract: A support yoke for a video recording core having a narrow body portion and two wire-wound coils includes a narrow slot for supporting the body portion of the recording core between the coils and relief pockets formed on either side of the narrow slot to accommodate the wire-wound coils.

Abstract translation: 用于具有窄主体部分和两个绕线线圈的视频记录芯的支撑轭包括用于支撑在线圈之间的记录芯体的主体部分的窄狭槽和形成在狭槽的任一侧上的释放口，以容纳线 绕线圈。

公开(公告)号：US4514839A

公开(公告)日：1985-04-30

申请号：US479305

申请日：1983-03-28

Applicant: Kurt Eisemann

Inventor： Kurt Eisemann

IPC: G11B17/028 ,  G11B5/16 ,  G11B25/04

CPC classification number: G11B17/0284 ,  G11B17/0282

Abstract: The invention relates to a disc player for a rigid information-carrying disc, which player has a disc holder on which the disc rotates during information transfer, the disc holder comprising a turntable and a centering device, which device comprises a plurality of centering elements which are arranged along a circle, which are each resiliently movable in a radial direction in order to keep the disc centered during rotation by means of the centering elements which act on the wall of the center hole in the disc. A lid which is movable from an open to a closed position in two stages carries a disc loader and is coupled to lifting means. After the disc loader has resiliently urged the disc onto the centering device and the turntable in a first stage, the lifting means lift the lid in a second stage until the disc loader is clear of the disc which is clamped on the centering device. The resilient centering elements firmly retain the disc on the turntable as a result of their radial elastic deflection.

Abstract translation: 本发明涉及一种用于刚性信息传送盘的盘播放器，该播放器具有盘信息传送期间盘片旋转的光盘保持器，该光盘保持器包括一个转盘和定心装置，该装置包括多个定心元件， 沿着圆周布置，它们都可沿径向方向弹性移动，以便通过作用在盘中心孔的壁上的定心元件在旋转过程中保持盘对中。 从两个阶段的打开状态向闭合位置移动的盖子承载着一个盘式装载机并且联接到提升装置上。 在盘式装载机在第一级中弹性地将盘推到定心装置和转台上之后，提升装置在第二级提起盖子，直到盘式装载机远离被夹紧在定心装置上的盘。 弹性对中元件由于其径向弹性偏转而将盘牢固地保持在转台上。

公开(公告)号：US4511942A

公开(公告)日：1985-04-16

申请号：US375714

申请日：1982-05-07

Applicant: Erich P. Valstyn

Inventor： Erich P. Valstyn

IPC: B23Q17/20 ,  G11B5/187 ,  G11B5/31 ,  G11B5/16

CPC classification number: G11B5/1871 ,  B23Q17/20 ,  G11B5/3166 ,  Y10T29/49036 ,  Y10T29/49037

Abstract: A lapping guide is provided to determine the position at which lapping of a thin film head to define pole faces should be terminated. Accurate positioning of the lapping guide with respect to the head is insured by forming various elements of the lapping guide during the same photolithographic process steps as those used to form elements of the head. The lapping guide may be used either as an electrical or optical guide. When used as an optical guide, a second lapping guide may be provided as an indicator that more frequent inspection is necessary.

Abstract translation: 提供研磨引导件以确定要终止限定极面的薄膜头的研磨的位置。 通过在与用于形成头部元件的光刻工艺相同的光刻工艺步骤中形成研磨导向器的各种元件来保证研磨导向件相对头部的精确定位。 研磨导向器可以用作电导或光导。 当用作光导时，可以提供第二研磨引导件作为需要更频繁检查的指示器。

公开(公告)号：US4441132A

公开(公告)日：1984-04-03

申请号：US371580

申请日：1982-04-26

Applicant: Shigetoshi Morita ,  Hirohide Yamada

Inventor： Shigetoshi Morita ,  Hirohide Yamada

IPC: G11B5/10 ,  G11B5/133 ,  G11B5/265 ,  G11B5/16 ,  G11B5/22

CPC classification number: G11B5/1335 ,  G11B5/10 ,  G11B5/2651

Abstract: A magnetic head device comprising a recording/playback magnetic head and erasing magnetic head, each of which consisting of cores made from a ferrite of Mn-Zn system and a reinforcement plate made from a non-magnetic ceramic material and bonded to respective cores; and sliders made from a non-magnetic ceramic material and united with the magnetic heads. The non-magnetic ceramic material for the sliders has a thermal expansion coefficient which is at least 5.times.10.sup.-7 /.degree.C. greater than that of the non-magnetic ceramic material for the reinforcement plate.

Abstract translation: 一种磁头装置，包括记录/重放磁头和擦除磁头，每个磁头包括由Mn-Zn系铁氧体制成的芯和由非磁性陶瓷材料制成并加固到各个芯的加强板; 以及由非磁性陶瓷材料制成并与磁头结合的滑块。 用于滑块的非磁性陶瓷材料具有比用于加强板的非磁性陶瓷材料高的至少5×10 -7 /℃的热膨胀系数。

公开(公告)号：US3975773A

公开(公告)日：1976-08-17

申请号：US557036

申请日：1975-03-10

Applicant: Jean-Pierre Dejouhanet ,  Jean-Pierre Lazzari

Inventor： Jean-Pierre Dejouhanet ,  Jean-Pierre Lazzari

IPC: G11B5/187 ,  G11B5/31 ,  G11B5/16 ,  G11B5/14 ,  G11B5/27

CPC classification number: G11B5/3153 ,  G11B5/3143

Abstract: In a thin film magnetic writing head structure, a high permeability layer is arranged parallel to the lateral face of a pole piece which is situated in the downstream direction of movement of the magnetic record carrier under the head airgap. Said high permeability layer is magnetostatically de-coupled from the pole piece. This arrangement guides the zero magnetic field lines from the head along the frontal plane of the pole piece and along the lateral face of said piece, thereby drastically reducing the action of de-magnetizing components of the writing flux on the record.

Abstract translation: 在薄膜磁性写入头结构中，高磁导率层平行于位于磁记录载体在磁头气隙下方的移动方向的极片的侧面平行布置。 所述高磁导率层从极片静磁解耦。 这种布置引导零磁场线从头部沿着磁极片的正面并且沿着所述件的侧面引导，从而大大降低了写磁通量在记录上的去磁部件的作用。

公开(公告)号：US3940797A

公开(公告)日：1976-02-24

申请号：US548846

申请日：1975-02-10

Applicant: George W. Brock ,  Frank B. Shelledy ,  Sidney H. Smith ,  Richard F. M. Thornley

Inventor： George W. Brock ,  Frank B. Shelledy ,  Sidney H. Smith ,  Richard F. M. Thornley

IPC: G11B5/33 ,  G11B5/39 ,  G11B5/16 ,  G11B5/22

CPC classification number: G11B5/39 ,  G11B5/332

Abstract: A magnetoresistive (MR) layer is placed offcenter the distance between two shields to enhance self-biasing. Information is carried on a magnetizable medium as recorded magnetic areas. The shields are spaced apart by a distance on the order of and less than the shortest recorded wavelength for which the head is meant to be used. The MR element and the shields have their edges nearest the medium in a common plane perpendicular to the vertical component of a signal from the recorded area. An additional shunt bias layer may be provided immediately adjacent and coextensive the MR element, and the head may serve one or many tracks.

Abstract translation: 磁阻（MR）层放置在两个屏蔽之间的距离上，以增强自偏压。 信息在可磁化介质上作为记录磁区进行。 屏蔽物隔开一定距离并且小于头部意图使用的最短记录波长的距离。 MR元件和屏蔽件在垂直于来自记录区域的信号的垂直分量的公共平面中具有最靠近介质的边缘。 附加的分流偏置层可以紧邻MR元件并且共同延伸，并且头可以用于一个或多个轨道。

公开(公告)号：US3864752A

公开(公告)日：1975-02-04

申请号：US42317073

申请日：1973-12-10

Applicant: SHUGART ASSOCIATES INC

Inventor： THOMPSON HERBERT E

IPC: G11B5/105 ,  G11B5/187 ,  G11B5/16 ,  G11B5/26

CPC classification number: G11B5/105 ,  G11B5/1871 ,  Y10T29/49027

Abstract: A magnetic head assembly and the method of manufacture therefor is disclosed which includes a housing having long and short body portions and a magnetic transducer comprising first and second core portions that are clamped in the respective body portions. The body portions are made of a nonmagnetic elastic material and include core-gripping surfaces defined by aligned slots cut through respective mating surfaces of the body portions. Prior to assembly, the body portions are permanently deformed by applying forces that exceed the elastic limit of the body material whereby the core-gripping surfaces are spaced apart by a distance less than the thickness of the core portions. Thereafter, the coregripping surfaces are forced apart to receive the respective core portions. When the forces are released, the core-gripping surfaces spring back to tightly clamp the core in the slots.

Abstract translation: 公开了一种磁头组件及其制造方法，其包括具有长和短主体部分的壳体和包括夹在相应主体部分中的第一和第二芯部的磁换能器。 主体部分由非磁性弹性材料制成，并且包括通过主体部分的相应配合表面切割的对齐的狭缝限定的芯抓握表面。 在组装之前，主体部分通过施加超过主体材料的弹性极限的力而永久地变形，由此芯部抓握表面间隔开小于芯部的厚度的距离。 此后，将芯抓握表面强制分开以接收相应的芯部。 当力释放时，芯夹紧表面弹回，以将芯紧紧地夹在槽中。

公开(公告)号：US3711656A

公开(公告)日：1973-01-16

申请号：US3711656D

申请日：1971-07-21

Applicant: MOTOROLA INC

Inventor： NILSSEN O

IPC: G11B5/29 ,  G11B5/49 ,  G11B5/16 ,  G11B5/28

CPC classification number: G11B5/4969 ,  G11B5/29

Abstract: A laminated multi-channel magnetic tape head apparatus has alternate lamina of copper and iron, with the iron lamina having gaps for recording/reproducing separate tape channels of multichannel tapes. A copper insert and suitable connectors form electrical conducting loops around a portion of each magnetic lamina, magnetic flux being induced in the magnetic lamina during recording and current being induced in the conducting loops during reproducing. An iron core piece with a coil mounted thereon magnetically transfers an electrical signal between a current conduction loop and the coil, with the coil being connected to a sound recording/reproducing system. Either the iron core piece is shifted from one magnetic lamina to another or switching between iron core pieces occurs thereby positioning the pickup portions of the tape head to the various tracks on the tape without physically moving the entire head assembly.

Abstract translation: 层叠的多通道磁带头装置具有铜和铁的交替层，铁层具有用于记录/再现多通道带的分离的带通道的间隙。 铜插入件和合适的连接器在每个磁性层的一部分周围形成导电环，在再现期间在导电环中记录和电流期间在磁层中感应磁通。 具有安装在其上的线圈的铁芯片在电流传导环路和线圈之间磁传递电信号，线圈连接到声音/再现系统。 铁芯片从一个磁性层移动到另一个磁片之间或在铁芯片之间切换，从而将带头的拾取部分定位在带上的各种轨道上，而不会物理移动整个头部组件。

公开(公告)号：US3697705A

公开(公告)日：1972-10-10

申请号：US3697705D

申请日：1969-07-24

Applicant: CALIFORNIA INST OF TECHN

Inventor： HOLT NORMAN I

IPC: G11B5/02 ,  G11B5/127 ,  G11B23/00 ,  H04N5/782 ,  G11B5/16 ,  G11B5/24

CPC classification number: G11B23/0007 ,  G11B5/02 ,  G11B5/127 ,  H04N5/782

Abstract: An electromagnetic transducer head is provided which exhibits a wide band recording response characteristic, and which comprises a plurality of separate magnetic head structures operating over different, overlapping frequency bands, and formed into an integral assembly. Each separate head structure of the assembly includes a magnetic core, and each core is provided with a gap. The cores are positioned adjacent one another so that the gaps are aligned to define a common gap, and the recording medium is drawn across the common gap. The common gap is tapered, with the gap width of each aligned gap section being different from its adjacent section. Separate windings are wound about the cores, each having different numbers of turns so as to cover overlapping frequency ranges.

Abstract translation: 提供一种具有宽带记录响应特性的电磁换能器头，其包括在不同的重叠频带上操作并形成为整体组件的多个单独的磁头结构。 组件的每个单独的头部结构包括磁芯，并且每个芯具有间隙。 芯彼此相邻地定位，使得间隙对准以限定公共间隙，并且记录介质被拉过公共间隙。 共同的间隙是锥形的，每个对齐的间隙部分的间隙宽度与其相邻部分不同。 单独的绕组围绕芯缠绕，每个绕组具有不同的匝数，以便覆盖重叠的频率范围。

公开(公告)号：US3679839A

公开(公告)日：1972-07-25

申请号：US3679839D

申请日：1970-07-22

Applicant: VICTOR COMPANY OF JAPAN

Inventor： SUZUKI TOSHI ,  NISHIJIMA TSUTOMU

IPC: G11B5/127 ,  G11B5/147 ,  G11B5/29 ,  G11B5/16 ,  G11B5/28

CPC classification number: G11B5/29 ,  Y10T29/49055 ,  Y10T29/4906

Abstract: A multiple-element magnetic head comprising a plurality of magnetic head half-members arranged in face to face relation with each other at opposing end surfaces, with magnetic gaps being formed between them. Such magnetic head half-members are each made by holding non-magnetic members of substantially inverted Ushape each including a horizontal portion and oppositely disposed vertical portions between magnetic members identical in shape and configuration with said non-magnetic members, holding the assembly between substantially U-shaped cores including a horizontal portion and oppositely disposed vertical portions, cutting off said horizontal portions of said non-magnetic members and said magnetic members while leaving said oppositely disposed vertical portions, and grinding end surfaces of said oppositely disposed vertical portions of the non-magnetic members and magnetic members at which the horizontal portions have been cut off so that said end surfaces may be flush with end surfaces of the cores which are to be positioned in face to face relation with end surfaces of cores of the other magnetic head halfmember.