R-Byte, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5406425 ISO/IEC compatible digital audio tape digital data storage system with increased data transfer rateExpiredJul 01, 92Apr 11, 95[G11B]
5398140 Digital data tape storage automatic track follower systemExpiredAug 06, 91Mar 14, 95[G11B]
5359468 Digital data storage tape formatterExpiredAug 06, 91Oct 25, 94[G11B]
5309300 Beginning/end of tape detection systemExpiredAug 06, 91May 03, 94[G11B]
5287233 Digital data storage magnetic tape system comprising a single chip processor to control a tape tension servo, and a head drum servoExpiredAug 06, 91Feb 15, 94[G11B]
5287478 Digital data tape storage system utilizing plurality of read/write heads with system diagnostic capabilityExpiredAug 06, 91Feb 15, 94[G06F, G11B]
5243473 Automatic helical scan head drum calibration and track timing generationExpiredAug 06, 91Sep 07, 93[G11B]
5177417 Method and apparatus for commutation of a brushless dc motorExpiredAug 06, 91Jan 05, 93[H02P]
5173817 Tape engagement mechanism for magnetic cassette tape incorporating a bi-directional over running clutch and improved capstan pinch schemeExpiredDec 17, 90Dec 22, 92[G11B]
5025333 Tape engagement mechanism for magnetic cassette tapeExpiredApr 12, 90Jun 18, 91[G11B]

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