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公开(公告)号:CA1191608A
公开(公告)日:1985-08-06
申请号:CA426786
申请日:1983-04-27
Applicant: IBM
Inventor: FRANASZEK PETER A , YARMCHUK EDWARD J
Abstract: MAGNETIC RECORDING HEAD ARRAY FOR LONGITUDINAL MAGNETIC PRINTING WITH STAGGERED HEAD ARRANGEMENT AND CLUSTERED WIRING A magnetic recording head array for printing onto a transfer magnetic recording medium which prints magnetic material onto a medium such as paper includes staggered arrays of magnetic print heads. The heads are in diagonally staggered parallel arrays tilted away from the vertical. Each array in a group of several arrays is also staggered in the vertical direction as well as the longitudinal direction. Preferably, the heads or other bistable elements are wired in clusters with the heads or other elements in the cluster being coupled to the same actuator wires in a half-select type of wiring arrangement. The difference in the wiring of the elements will reside in the sense of the signal as applied to the elements by means such as reversing the helical winding about a core or the Like. In the manufacture of the array, the horizontal wiring lines for actuating arrays are in the form of straight lines.
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公开(公告)号:CA1089993A
公开(公告)日:1980-11-18
申请号:CA280033
申请日:1977-06-07
Applicant: IBM
Inventor: FRANASZEK PETER A , THOMPSON DAVID A
IPC: H03M5/14 , G11B20/14 , H03M7/00 , H03M7/04 , H03M7/14 , H04L25/49 , G06F13/04 , G06F7/38 , G06F15/34
Abstract: APPARATUS AND METHOD FOR GENERATING A DATA CODE WITH A SPECTRAL NULL In a dynamic disc memory system, servo signal tracks and data tracks are adjacent. The servo track includes a signal having a predetermined frequency. With the system and method of this disclosure, the data recorded on the data track is translated to have a frequency null at the frequency of the servo signal track by translating apparatus to eliminate cross-talk at the servo frequency.
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公开(公告)号:CA1017865A
公开(公告)日:1977-09-20
申请号:CA155566
申请日:1972-11-01
Applicant: IBM
Inventor: FRANASZEK PETER A , GROSSMAN DAVID D , WILL PETER M
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