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1.发明授权Recording and playback system incorporating a first character positioning system 失效记录和回放系统并入第一个字符定位系统
公开(公告)号：US3523287A
公开(公告)日：1970-08-04
申请号：US3523287D
申请日：1968-01-15
Applicant: IBM
Inventor： MORRISON DONALD J , TANNER HOWARD C
CPC classification number: G11B20/1215 , G11B20/1419 , G11B20/1816
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公开(公告)号：CA969498A
公开(公告)日：1975-06-17
申请号：CA154493
申请日：1972-10-17
Applicant: IBM
Inventor： MORRISON DONALD J , RAESZ REUBEN
Abstract: A system for performing a carrier return operation in a typewriter, printer, etc., having a leadscrew controlled carrier, and controlling when the carrier is to be returned dependent upon a carrier return signal generated in conjunction with combinations of generated signals indicative of rotation and non-rotation of the leadscrew, and the leadscrew rotational position. The system is structured such that the carrier will be returned and properly positioned at the left margin or starting line upon termination of escapement, and upon signals being generated indicating that the leadscrew is in its home rotational position.
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公开(公告)号：CA829502A
公开(公告)日：1969-12-09
申请号：CA829502D
Applicant: IBM
Inventor： MORRISON DONALD J , TANNER HOWARD C
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