公开(公告)号：US5422771A

公开(公告)日：1995-06-06

申请号：US080892

申请日：1993-06-22

申请人： Manfred Willomitzer ,  Ralf Matwin ,  Hartmut Willmann

发明人： Manfred Willomitzer ,  Ralf Matwin ,  Hartmut Willmann

IPC分类号： G11B5/02 ,  G11B5/53 ,  G11B33/12 ,  G11B33/14 ,  G11B5/52 ,  G11B21/04

CPC分类号： G11B33/122 ,  G11B33/14 ,  G11B5/53

摘要： A rotary scanning device is proposed with a rotary body carrying at its periphery a plurality of magnetic recording heads which can be driven by associated recording amplifiers. The individual recording amplifiers are accommodated on circuit boards which are mounted in a paddle-wheel configuration between two annular conductor boards by means of holders. The two annular conductor boards are rotationally locked to the rotary body. The circuit boards have a forward inclination in the direction of rotation of the rotary body.

摘要翻译： 提出一种旋转扫描装置，其旋转体在其周边承载可由相关联的记录放大器驱动的多个磁记录头。 单独的记录放大器被容纳在电路板上，电路板通过支架以两个环形导体板之间的桨轮结构安装。 两个环形导体板旋转地锁定到旋转体。 电路板在旋转体的旋转方向上具有向前倾斜。

公开(公告)号：US6118625A

公开(公告)日：2000-09-12

申请号：US768683

申请日：1996-12-18

申请人： Richard Heinz ,  Hartmut Willmann

发明人： Richard Heinz ,  Hartmut Willmann

IPC分类号： G11B5/127 ,  G11B5/008 ,  G11B5/02 ,  G11B5/11 ,  G11B5/17 ,  G11B5/187 ,  G11B5/265 ,  G11B5/53 ,  G11B15/62 ,  G11B23/00

CPC分类号： G11B5/127 ,  G11B15/62 ,  G11B5/00813 ,  G11B5/02 ,  G11B5/11 ,  G11B5/17 ,  G11B5/187 ,  G11B5/53 ,  G11B23/0007

摘要： A magnet-head device for a magnetic-tape apparatus having a rotatably supported head disc carrying magnetic heads (10) at its periphery. A magnetic head has lateral additional limbs (12) which extend into the path of the magnetic tape (14), so that their end faces (12a) form a common contact face with the end face (11a) of the magnetic head (10).

摘要翻译： 一种用于磁带装置的磁头装置，具有在其周边承载磁头（10）的可旋转地支撑的磁头盘。 磁头具有延伸到磁带（14）的路径中的侧向附加臂（12），使得其端面（12a）与磁头（10）的端面（11a）形成公共接触面， 。

公开(公告)号：US5623385A

公开(公告)日：1997-04-22

申请号：US709614

申请日：1996-09-09

申请人： Peter Gunschmann ,  Peter Lameli ,  Hartmut Willmann ,  Werner Maack

发明人： Peter Gunschmann ,  Peter Lameli ,  Hartmut Willmann ,  Werner Maack

IPC分类号： G11B5/48 ,  G11B5/52 ,  G11B5/53 ,  G11B5/56 ,  G11B21/24

CPC分类号： G11B5/534 ,  G11B5/4893 ,  G11B5/53

摘要： A rotary scanning device having a stationary upper and lower drum (1,2) is proposed, in which a cylindrical insert (15) with a servo head (16) is arranged in a radial bore (14) in the lower drum (2). The cylindrical insert (15) is secured to the circumference of a ring (18) which is concentrically supported in the lower drum (2) and which has an axial groove (19) in its circumferential surface for the adjustment of the angular position of the ring (18).

摘要翻译： 提出了一种具有固定上下鼓（1,2）的旋转扫描装置，其中具有伺服头（16）的圆柱形插入件（15）布置在下鼓（2）中的径向孔（14）中， 。 圆柱形插入件（15）固定在同心支撑在下滚筒（2）中并且在其圆周表面上具有轴向凹槽（19）的环（18）的圆周上，用于调节 戒指（18）。

公开(公告)号：US5212610A

公开(公告)日：1993-05-18

申请号：US835211

申请日：1992-02-13

申请人： Gerhard Falk ,  Hartmut Willmann ,  Wolfgang Fell

发明人： Gerhard Falk ,  Hartmut Willmann ,  Wolfgang Fell

IPC分类号： G11B5/02 ,  G11B5/52 ,  G11B5/53

CPC分类号： G11B5/53

摘要： A scanning device for a magnetic tape recording and playback equipment of the oblique track type has a drive shaft (9) for a rotary head wheel (4) mounted in a duplex ball bearing (10) centered on the orbit plane of the magnetic heads which revolve on the circumference of the head wheel between the two halves of a tape-guiding drum. A support bearing (19) is affixed in the bottom of a housing (17) which houses the drive motor and is held in a downward extending socket at the bottom of the lower half of the drum. The housing can be tilt-shifted slightly for shifting the support bearing and then held, by three screws accessible from below, in the correct position for aligning the orbit of the magnetic heads in the gap between the two halves of the drum.

摘要翻译： 用于倾斜轨道型磁带记录和重放设备的扫描装置具有安装在以磁头的轨道平面为中心的双重滚珠轴承（10）中的旋转磁头轮（4）的驱动轴（9） 在磁带引导鼓的两个半部之间的头轮的圆周上旋转。 支撑轴承（19）固定在壳体（17）的底部，壳体（17）容纳驱动马达并且保持在滚筒下半部底部的向下延伸的插座中。 壳体可以稍微倾斜移动以移动支撑轴承，然后通过三个可从下方进入的螺钉保持在正确的位置，以使磁头的轨道在滚筒的两半之间的间隙中对准。

公开(公告)号：US5036418A

公开(公告)日：1991-07-30

申请号：US272889

申请日：1988-10-19

申请人： Hartmut Willmann ,  Ludwig Dittmann ,  Richard Heinz ,  Jorn Lutzeler

发明人： Hartmut Willmann ,  Ludwig Dittmann ,  Richard Heinz ,  Jorn Lutzeler

IPC分类号： G11B5/02 ,  G11B5/11 ,  G11B5/115 ,  G11B5/53 ,  H01F38/14

CPC分类号： G11B5/531 ,  G11B5/11 ,  G11B5/115 ,  G11B5/53

摘要： To improve the crosstalk behavior of a multi-channel magnetic tape recorder with a rotating head wheel, whose magnetic heads receive signals through a rotating transformer, the leads between the magnetic heads and the corresponding transformer windings are shielded from one another. Advantageously, this shielding is made of small tubes of an efficiently electroconductive metal which, in another embodiment, can be securely connected electrically and mechanically with the rotational axis. For further improvement of the crosstalk characteristics, the shielding can also be connected in an electrically conducting fashion with the short-circuit rings located between the individual transformers.

摘要翻译： PCT No.PCT / DE88 / 00086 Sec。 371日期：1988年10月19日 102（e）日期1988年10月19日PCT提交1988年2月19日PCT公布。 出版物WO88 / 06783 日期：1988年9月7日。为了改善具有旋转头轮的多通道磁带录音机的串扰特性，磁头通过旋转变压器接收信号，磁头与相应的变压器绕组之间的引线被屏蔽 另一个。 有利地，该屏蔽由有效导电金属的小管制成，其在另一个实施例中可以与旋转轴线电连接和机械地牢固地连接。 为了进一步改善串扰特性，屏蔽还可以以导电方式与位于单个变压器之间的短路环连接。

公开(公告)号：US5299084A

公开(公告)日：1994-03-29

申请号：US861682

申请日：1992-04-01

申请人： Gerhard Falk ,  Hartmut Willmann

发明人： Gerhard Falk ,  Hartmut Willmann

IPC分类号： G11B5/53 ,  G11B5/52

CPC分类号： G11B5/531 ,  G11B5/53

摘要： A scanning device for a magnetic-tape apparatus is proposed, which device comprises a stationary upper drum section (1) and lower drum section (2) and a head disc (10) which rotates in a gap (5) between the drum sections. In its upper radial surface and its lower radial surface the head disc (10) has segmental recesses (26, 27) for accommodating magnetic heads (11) secured to head mounts (12). At one side of the head disc (10) the recesses (26, 27) accommodate magnetic recording heads and at the other side said recesses accommodate the magnetic reproducing heads.

摘要翻译： 提出了一种用于磁带装置的扫描装置，该装置包括固定的上鼓部分（1）和下鼓部分（2）以及在鼓部分之间的间隙（5）中旋转的头盘（10）。 在其上径向表面和其下径向表面中，头盘（10）具有用于容纳固定到头部安装件（12）的磁头（11）的节段凹槽（26,27）。 在头盘（10）的一侧，凹槽（26,27）容纳磁记录头，另一侧所述凹槽容纳磁性再现头。

公开(公告)号：US5075809A

公开(公告)日：1991-12-24

申请号：US355773

申请日：1989-05-23

申请人： Richard Heinz ,  Hartmut Willmann ,  Jorn Lutzeler

发明人： Richard Heinz ,  Hartmut Willmann ,  Jorn Lutzeler

IPC分类号： G11B5/115 ,  G11B5/11 ,  G11B5/53

CPC分类号： G11B5/53 ,  G11B5/11 ,  G11B5/112

摘要： A magnetic head affixed to the underside of a carrier body mounted at the periphery of a head-wheel for scanning oblique tracks on a magnetic tape is provided with shielding of ferrite, mu-metal or amorphous iron, to reduce magnetic crosstalk. The shielding surrounds the part of the magnetic head that projects beyond the head carrier body except for a small portion near the polished surface that needs to be left uncovered to avoid interfering aerodynamically with the contact of the magnetic head with a magnetic tape. One piece of the shielding is of rectilinear shallow U-shaped profile, forming a pocket for the magnetic head below the carrier body and extends beyond the tip of the carrier body, where the second piece of shielding material completes an annular shielding ring around the end of the magnetic head. This shielding is particularly useful for an after-check playback head used during recording to check on the quality of the recorded signals.

摘要翻译： 安装在用于扫描磁带上的倾斜轨道的前轮周边的载体主体的下侧的磁头设置有铁氧体，多金属或非晶铁的屏蔽，以减少磁串扰。 除了需要保持未被覆盖的抛光表面附近的小部分之外，屏蔽件围绕突出超过头部托架主体的部分磁头，以避免空气动力学地与磁头与磁带接触。 屏蔽件的一部分是直线的浅U形轮廓，在载体主体下面形成用于磁头的口袋，并且延伸超过载体主体的尖端，其中第二片屏蔽材料在端部周围形成环形屏蔽环 的磁头。 该屏蔽对于在记录期间使用的检查重放头来检查记录信号的质量特别有用。

公开(公告)号：US5278715A

公开(公告)日：1994-01-11

申请号：US832935

申请日：1992-02-10

申请人： Hartmut Willmann ,  Gerhard Falk

发明人： Hartmut Willmann ,  Gerhard Falk

IPC分类号： G11B5/02 ,  G11B5/52 ,  G11B5/53 ,  G11B15/14 ,  G11B15/61

CPC分类号： G11B15/14 ,  G11B5/53

摘要： For oblique track scanning of magnetic tape which is looped around a two-part drum (1, 2) separated by a gap (5) in which magnetic heads (11) affixed to a headwheel revolve, the rotary transformers connecting the magnetic heads on the headwheel to fixed parts of the scanning device are provided by inner and outer magnetic core rings in which windings are embedded for a number of transformers. One group of these rotary transformers (18, 19) is located above the headwheel disk structure (10, 25) in such a way that outer magnetic core rings are fixed in a bore of the fixed upper drum (1) and inner magnetic core rings (19) are affixed to a seating shell (25) that connects the headwheel disk (10) to its driving shaft. Another group of rotary transformers (10, 21) is located beneath the rotary headwheel disk structure (10, 25) and in this case the outer magnetic core rings (20) are affixed to the inner wall of the rotary headwheel disk structure (10, 25) and the inner magnetic core rings are affixed to the outer wall of the bearing (15) of the shaft (14) that drives the rotary headwheel disk.

摘要翻译： 对于围绕由附接到头轮的磁头（11）旋转的间隙（5）分开的两部分磁鼓（1,2）环绕的磁带的斜轨扫描，旋转变压器将磁头连接到 头轮到扫描装置的固定部分由内部和外部磁芯环提供，其中绕组被嵌入用于多个变压器。 这些旋转变压器（18,19）中的一组位于头轮盘结构（10,25）的上方，使得外磁心环固定在固定的上鼓（1）的孔中，并且内磁心环 （19）固定到将前轮盘（10）连接到其驱动轴的座壳（25）上。 另一组旋转变压器（10,21）位于旋转轮毂盘结构（10,25）的下方，并且在这种情况下，外部磁芯环（20）固定在旋转头轮盘结构（10,21）的内壁上， 25），并且内部磁芯环固定到驱动旋转轮毂盘的轴（14）的轴承（15）的外壁上。

公开(公告)号：US4816950A

公开(公告)日：1989-03-28

申请号：US68844

申请日：1987-07-01

申请人： Richard Heinz ,  Willi Hartmann ,  Hartmut Willmann ,  Josef Walter

发明人： Richard Heinz ,  Willi Hartmann ,  Hartmut Willmann ,  Josef Walter

IPC分类号： G11B5/11 ,  G11B5/53 ,  G11B5/10 ,  G11B15/60

CPC分类号： G11B5/531 ,  G11B5/11

摘要： A strip of easily magnetizable material of low remanence, having magnetic properties equal to or better than those of the core of the magnetic heads on a revolving headwheel of a video tape machine is provided as a magnetic shunt for each head, disposed in the neighborhood of the core gap, but spaced therefrom at a distance much greater than the gap width, for reducing the spread of stray flux when the head is used for recording and intercepting stray flux from other heads when the head is in the playback mode. Among the many ways in which the shunt can be provided are individual bridge strip mounted on the headwheel to bridge over each head laterally, a horseshoe-shaped strip covering the annular gap in which the headwheel revolves for the portions of that gap over which the tape passes, but spaced away from the tape, and strips mounted on the stationary guide drums or embedded in the headwheel periphery. The reduction and interception of stray flux is of important advantage when a tape reading head is in operation at the same time as a recording head on the same headwheel.

摘要翻译： 提供具有与磁带机的旋转头轮上的磁头的磁芯的磁特性等于或优于磁性能的低剩磁容易磁化材料条，作为每个磁头的磁分路， 芯部间隙距离远大于间隙宽度的距离，用于当头部处于回放模式时用于记录和截取来自其它头部的杂散通量的杂散通量的扩展。 可以提供分流装置的许多方式中，单独的桥式钢带安装在头轮上以横向跨越每个头部，马蹄形条覆盖环形间隙，其中头轮转动该间隙的部分，带 通过，但是与带隔开，并且安装在固定导向鼓上或嵌入在头轮周边中的条带。 当磁带阅读头与同一头轮上的记录头同时运行时，杂散磁通的减少和截取是重要的优点。