Assignee
DATATAPE INC
US·43 granted patents·505 citations·filing 1982–1992
Top patents by PatentIndex Score
43 records- 0191US4989110AFull radius carrier to drum contact in a rotary head scannerDATATAPE INC·Filed 1989·Granted Jan 29, 1991·82 cites·3 claims
- 0290US4984108AApparatus for transporting magnetic tape cassettes of different sizesDATATAPE INC·Filed 1988·Granted Jan 8, 1991·45 cites·4 claims
- 0379US4891720ABelt drive system for a magnetic tape cassette transport/accessorDATATAPE INC·Filed 1988·Granted Jan 2, 1990·25 cites·7 claims
- 0477US4772963ADuplicate digital date recording apparatus for enhancing bit error rate performance of a data storage mediumDATATAPE INC·Filed 1986·Granted Sep 20, 1988·33 cites·5 claims
- 0567US4763210AHelical scan tape guide apparatusDATATAPE INC·Filed 1987·Granted Aug 9, 1988·15 cites·8 claims
- 0666US5163070ADigital data synchronizerDATATAPE INC·Filed 1990·Granted Nov 10, 1992·21 cites·4 claims
- 0766US5003417ASpring dampener assembly for a sprocket driven belt drive systemDATATAPE INC·Filed 1988·Granted Mar 26, 1991·14 cites·6 claims
- 0866US4991041AApparatus for moving a cassette between storage and receiving locationsDATATAPE INC·Filed 1989·Granted Feb 5, 1991·14 cites·1 claims
- 0963US4826097AReel spindle apparatus with internal clamping memberDATATAPE INC·Filed 1988·Granted May 2, 1989·14 cites·5 claims
- 1062US5341134ASimple coding scheme for DC free channel codes of form M/N, where M=N-1 and M and N are positive integersDATATAPE INC·Filed 1992·Granted Aug 23, 1994·16 cites·4 claims
- 1162US4991038AAutomatic threading of a web using a flexible threading bandDATATAPE INC·Filed 1988·Granted Feb 5, 1991·12 cites·9 claims
- 1261US4654837AMagneto-optic transducer with enhanced signal performanceDATATAPE INC·Filed 1985·Granted Mar 31, 1987·13 cites·3 claims
- 1360US4772969A"Expandable loop" method of and apparatus for automatically threading a web materialDATATAPE INC·Filed 1987·Granted Sep 20, 1988·11 cites·11 claims
- 1459US4779150APneumatically controlled tape-loading tape-transporting apparatusDATATAPE INC·Filed 1987·Granted Oct 18, 1988·11 cites·6 claims
- 1557US5003424AApparatus for changing the helix angle of magnetic tape relative to a rotary head scannerDATATAPE INC·Filed 1988·Granted Mar 26, 1991·10 cites·4 claims
- 1656US4933959ATracking bit synchronizerDATATAPE INC·Filed 1989·Granted Jun 12, 1990·26 cites·3 claims
- 1756US4609961AFaraday-effect magneto-optic transducerDATATAPE INC·Filed 1984·Granted Sep 2, 1986·9 cites·3 claims
- 1855US5325246AAutomatic tracking method for helical scan magnetic tape recorder using reproduced timing signal to sample two out-of-phase reference signalsDATATAPE INC·Filed 1992·Granted Jun 28, 1994·11 cites·6 claims
- 1955US4967290AMultiple channel rotary magnetic head scanner having stackable electro-optical signal transmission modulesDATATAPE INC·Filed 1988·Granted Oct 30, 1990·9 cites·7 claims
- 2054US4819096ARotary head scanner including anamorphic beam-shaping apparatus in an optical signal-transmission channelDATATAPE INC·Filed 1988·Granted Apr 4, 1989·9 cites·4 claims
- 2152US4964557ABidirectional web guiding systemDATATAPE INC·Filed 1989·Granted Oct 23, 1990·12 cites·5 claims
- 2249US4891716AAutocalibration of a data signal channel through simultaneous control signalsDATATAPE INC·Filed 1988·Granted Jan 2, 1990·9 cites·4 claims
- 2348US5321566AMagnetic tape threading and transport apparatus including a sensor for controlling air bearing block movementDATATAPE INC·Filed 1992·Granted Jun 14, 1994·10 cites·2 claims
- 2447US5307971ATape keeper for tape transport elementsDATATAPE INC·Filed 1992·Granted May 3, 1994·6 cites·6 claims
- 2541US5164868AMagnetic tape threading and compliance element guiding apparatusDATATAPE INC·Filed 1991·Granted Nov 17, 1992·7 cites·4 claims
- 2640US4984107AApparatus for transporting a magnetic tape cassetteDATATAPE INC·Filed 1988·Granted Jan 8, 1991·5 cites·3 claims
- 2740US4958248AReflective tachometer/headwheel assembly for a rotary head scannerDATATAPE INC·Filed 1988·Granted Sep 18, 1990·4 cites·3 claims
- 2839US5243477AApparatus for threading magnetic tape from a single reel cartridge in a rotary head tape transportDATATAPE INC·Filed 1991·Granted Sep 7, 1993·4 cites·4 claims
- 2939US4592522ACoaxial reel assembly apparatusDATATAPE INC·Filed 1985·Granted Jun 3, 1986·4 cites·11 claims
- 3039US4442963ATape advancing method and apparatus with fast tape advance modeDATATAPE INC·Filed 1982·Granted Apr 17, 1984·3 cites·38 claims
- 3138US4947069ALow power magnetic tape reel motor and brake assemblyDATATAPE INC·Filed 1989·Granted Aug 7, 1990·7 cites·3 claims
- 3237US5276559ATechnique for recording and reproducing low rate data in a helical vehicle scan recorder having a stationary time code signal reproduce magnetic headDATATAPE INC·Filed 1992·Granted Jan 4, 1994·5 cites·5 claims
- 3337US4647999AFrame for positioning transducing headDATATAPE INC·Filed 1984·Granted Mar 3, 1987·7 cites·7 claims
- 3435US5044574AReel hub latch assemblyDATATAPE INC·Filed 1989·Granted Sep 3, 1991·2 cites·4 claims
- 3535US4594699AFaraday-effect magneto-optic transducer apparatus of a rotary formDATATAPE INC·Filed 1985·Granted Jun 10, 1986·4 cites·7 claims
- 3632US4587581AMagnetic tape tracking control apparatusDATATAPE INC·Filed 1985·Granted May 6, 1986·3 cites·9 claims
- 3731US4891719AFast closure method for a data signal channelDATATAPE INC·Filed 1988·Granted Jan 2, 1990·3 cites·1 claims
- 3830US5327307AMagnetic tape cassette recorder having a slidably and tiltably mounted cassette holder and a latch interlock mechanismDATATAPE INC·Filed 1992·Granted Jul 5, 1994·4 cites·5 claims
- 3930US4677502ATurnaround tape transport apparatus with compensation for head-to-tape stick-slip actionDATATAPE INC·Filed 1986·Granted Jun 30, 1987·2 cites·6 claims
- 4029US5289323AAutotracking for a helical scan magnetic tape recorderDATATAPE INC·Filed 1992·Granted Feb 22, 1994·2 cites·3 claims
- 4129US4995570AReel brake assembly actuated by linear stepper motorDATATAPE INC·Filed 1989·Granted Feb 26, 1991·1 cites·6 claims
- 4226US5184258AHelical scan magnetic tape recorder with capstan assisted vacuum threadingDATATAPE INC·Filed 1991·Granted Feb 2, 1993·0 cites·3 claims
- 4325US4857825AVoltage controlled resistorDATATAPE INC·Filed 1988·Granted Aug 15, 1989·1 cites·13 claims
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