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公开(公告)号：EP0047383B1
公开(公告)日：1984-07-04
申请号：EP81105738.9
申请日：1981-07-21
CPC分类号： G11B5/29 , G11B5/295 , Y10T29/49048 , Y10T29/49055
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2.发明公开Multitrack magnetic head and method of manufacture thereof 失效Vielspur-Magnetkopf und Verfahren zu dessen Herstellung。
公开(公告)号：EP0047383A1
公开(公告)日：1982-03-17
申请号：EP81105738.9
申请日：1981-07-21
CPC分类号： G11B5/29 , G11B5/295 , Y10T29/49048 , Y10T29/49055
摘要： A multipletrack magnetic head (38) has a closure section (26) comprising a ceramic substrate (30) to one surface of which are bonded equal width, closely spaced ferrite blocks (28). The blocks are bonded together and to the substrate by glass (33). A ferrite wafer (32) is bonded to the side of the closure section by cement (34) to form transducing gaps for a multiplicity of spaced magnetic head elements.
Closure sections for such heads are cut from an assembly comprising a ceramic substrate to which are bonded two interdigitated ferrite pieces with alternating complementary slots and fingers, the fingers of one piece being in the slots of the other piece. The ferrite pieces are bonded together and to the substrate by glass bonding. Each closure section is joined to a ferrite wafer, so that the wafer and closure section define a transducing gap therebetween.摘要翻译： 多重磁道磁头（38）具有封闭部分（26），该封闭部分（26）包括陶瓷基板（30），其一个表面被接合在相等的宽度紧密间隔的铁氧体块（28）上。 这些块通过玻璃（33）粘合在一起并附着在基板上。 铁氧体晶片（32）通过水泥（34）结合到封闭部分的侧面，以形成用于多个间隔开的磁头元件的换能间隙。 ...这种头部的封闭部分从包括陶瓷基底的组件切割，陶瓷基底与交替的互补狭缝和指状物接合两个叉指铁氧体片，一件的手指在另一件的槽中。 铁氧体片通过玻璃接合结合在一起并与衬底结合。 每个封闭部分连接到铁氧体晶片，使得晶片和封闭部分在它们之间限定换能间隙。
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公开(公告)号：EP0131727B1
公开(公告)日：1991-02-27
申请号：EP84106171.6
申请日：1984-05-30
CPC分类号： G11B5/00817 , G11B5/4893 , G11B15/12 , G11B20/1816 , G11B27/36
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公开(公告)号：EP0131727A3
公开(公告)日：1987-08-26
申请号：EP84106171
申请日：1984-05-30
IPC分类号： G11B27/36 , G11B15/12 , G11B05/008 , G11B05/48 , G11B05/265 , G11B05/39
CPC分类号： G11B5/00817 , G11B5/4893 , G11B15/12 , G11B20/1816 , G11B27/36
摘要： A digital tape drive wherein tape is written, and a read-after-write operation is immediately performed to check the integrity of the write operation, for either direction (11, 12) of tape movement. The tape (10) contains a plurality of parallel data tracks. Two read/write head modules (14, 15) span the entire tape. The read (R) and write (W) gaps of each module are alternately spaced across the width of the tape, such that the write gaps of one module are aligned with the read gaps of the other module. When one module is selected for writing, as a function of the direction of tape movement, the other module is selected to read-after-write check the first module's written data. One module (14) writes odd-track data during one direction (11) of tape movement, and reads even-track data during the opposite direction (12) of tape movement; as the other module (15) writes even-track data during said opposite movement direction (12), and reads odd-track data during said one movement direction (11). Common read and write electronic circuits are switched between the two modules, since each module is using only one of its read and write gap multiples at any given time.
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公开(公告)号：EP0131727A2
公开(公告)日：1985-01-23
申请号：EP84106171.6
申请日：1984-05-30
CPC分类号： G11B5/00817 , G11B5/4893 , G11B15/12 , G11B20/1816 , G11B27/36
摘要： A digital tape drive wherein tape is written, and a read-after-write operation is immediately performed to check the integrity of the write operation, for either direction (11, 12) of tape movement. The tape (10) contains a plurality of parallel data tracks. Two read/write head modules (14, 15) span the entire tape. The read (R) and write (W) gaps of each module are alternately spaced across the width of the tape, such that the write gaps of one module are aligned with the read gaps of the other module. When one module is selected for writing, as a function of the direction of tape movement, the other module is selected to read-after-write check the first module's written data. One module (14) writes odd-track data during one direction (11) of tape movement, and reads even-track data during the opposite direction (12) of tape movement; as the other module (15) writes even-track data during said opposite movement direction (12), and reads odd-track data during said one movement direction (11). Common read and write electronic circuits are switched between the two modules, since each module is using only one of its read and write gap multiples at any given time.
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