Assignee
TANDBERG DATA
NO·95 granted patents·1 pending application·1,907 citations·filing 1981–2007
Top patents by PatentIndex Score
96 records- 0195US5452152ATracking control on longitudinal azimuth tracks using an auxiliary read headTANDBERG DATA·Filed 1991·Granted Sep 19, 1995·82 cites·13 claims
- 0294US4609959ADevice for positioning a magnetic head to various tracks of a magnetic tapeTANDBERG DATA·Filed 1983·Granted Sep 2, 1986·48 cites·10 claims
- 0393US5438469AMethod and apparatus for coarse and fine positioning a magnetic head with three piezoelectric elements arranged in a tripod arrangementTANDBERG DATA·Filed 1993·Granted Aug 1, 1995·64 cites·15 claims
- 0493US5294803ASystem and a method for optically detecting an edge of a tapeTANDBERG DATA·Filed 1991·Granted Mar 15, 1994·54 cites·57 claims
- 0593US4866548AMethod and arrangement for precise positioning of a magnetic head to various tracks of a magnetic tapeTANDBERG DATA·Filed 1987·Granted Sep 12, 1989·53 cites·5 claims
- 0692US5294791ASystem and a method for controlling position of a magnetic head relative to a servo track of a tape by optical detection of an edge of the tapeTANDBERG DATA·Filed 1992·Granted Mar 15, 1994·51 cites·19 claims
- 0791US4690362AAdjustable stand for a visual display unitTANDBERG DATA·Filed 1985·Granted Sep 1, 1987·143 cites·10 claims
- 0891US4679104AMethod and arrangement for positioning a magnetic head to various tracks of a magnetic tapeTANDBERG DATA·Filed 1986·Granted Jul 7, 1987·63 cites·14 claims
- 0990US4395010ADevice for the setting up of a data display device on a work surfaceTANDBERG DATA·Filed 1981·Granted Jul 26, 1983·95 cites·6 claims
- 1088US5379165AMethod and apparatus for improving the accuracy of a tape servo track seek algorithm by using longitudinally correlated waveforms of lateral tape movement unique to each tape cassetteTANDBERG DATA·Filed 1993·Granted Jan 3, 1995·42 cites·10 claims
- 1186US6972931B2Write/read head assembly with wear partsTANDBERG DATA·Filed 2002·Granted Dec 6, 2005·35 cites·2 claims
- 1286US6339522B1Magnetic data transfer system with dynamic head-to-tape alignmentTANDBERG DATA·Filed 2000·Granted Jan 15, 2002·28 cites·6 claims
- 1386US5542082AData storage system connected to a host computer system and having removable data storage media and equipped to read a control program from the removable media into storage employing ID comparison schemeTANDBERG DATA·Filed 1995·Granted Jul 30, 1996·99 cites·5 claims
- 1486US5257148AMethod and apparatus for positioning a magnetic head in a magnetic layer memory system using tracking by reading a spaced pair of corresponding subtracksTANDBERG DATA·Filed 1992·Granted Oct 26, 1993·44 cites·7 claims
- 1586US4622606AMagnetic tape recorderTANDBERG DATA·Filed 1983·Granted Nov 11, 1986·28 cites·20 claims
- 1685US5457586AMethod and arrangement for positioning a magnetic head relative to the storage medium of a magnetic layer storageTANDBERG DATA·Filed 1991·Granted Oct 10, 1995·37 cites·6 claims
- 1785US5394277AMethod for determining servo track pair position and longitudinal tape position for a tape using dedicated servo formatTANDBERG DATA·Filed 1992·Granted Feb 28, 1995·34 cites·9 claims
- 1885US4639796AArrangement for positioning a transducer to at least one track of a tape-shaped recording mediumTANDBERG DATA·Filed 1984·Granted Jan 27, 1987·27 cites·9 claims
- 1985US4476503AMethod for the recognition of an edge of a magnetic medium and a device for implementation of the methodTANDBERG DATA·Filed 1982·Granted Oct 9, 1984·27 cites·14 claims
- 2084US5357495AStacker/autoloader system with intelligent media storage magazine controlTANDBERG DATA·Filed 1992·Granted Oct 18, 1994·36 cites·13 claims
- 2180US7855938B2Expandable data storage system and method with cartridge pass-through between cartridge handling unitsTANDBERG DATA·Filed 2007·Granted Dec 21, 2010·10 cites·20 claims
- 2279US5568327AMethod for determining the tape position using dedicated servo formatTANDBERG DATA·Filed 1994·Granted Oct 22, 1996·24 cites·1 claims
- 2378US5375245AApparatus for automatically reducing the power consumption of a CRT computer monitorTANDBERG DATA·Filed 1993·Granted Dec 20, 1994·62 cites·8 claims
- 2478US5287008AElectrostatic discharge noise suppression method and system for electronic devicesTANDBERG DATA·Filed 1991·Granted Feb 15, 1994·41 cites·24 claims
- 2575US5881960AMethod and apparatus for increased mechanical stability of a tape and cartridgeTANDBERG DATA·Filed 1998·Granted Mar 16, 1999·28 cites·32 claims
- 2675US5343341AMethod for seeking the center of a recorded data trackTANDBERG DATA·Filed 1992·Granted Aug 30, 1994·29 cites·5 claims
- 2774US5229620ASystem for integrated tape hole detection by detecting an edge of the tape and/or a pattern on the tapeTANDBERG DATA·Filed 1991·Granted Jul 20, 1993·21 cites·16 claims
- 2872US4636890AMagnetic tape recorderTANDBERG DATA·Filed 1984·Granted Jan 13, 1987·18 cites·13 claims
- 2969US5392170AMagnetic tape storage unit with improved ability to read data by using a set of multiple read elementsTANDBERG DATA·Filed 1992·Granted Feb 21, 1995·18 cites·16 claims
- 3069US5155353AHigh dynamic range integrated opto-electronic sensor and MOSFET amplifiers for pulsed lightTANDBERG DATA·Filed 1991·Granted Oct 13, 1992·27 cites·19 claims
- 3168US6078463AMethod and system for generating a position error signal from recorded servo data tracks containing information represented by longitudinally spaced, magnetic transitionsTANDBERG DATA·Filed 1997·Granted Jun 20, 2000·20 cites·17 claims
- 3268US4984111AMagnetic tape recorder with capstan cassette transportTANDBERG DATA·Filed 1988·Granted Jan 8, 1991·15 cites·10 claims
- 3367US4489355ALocking device for a magnetic tape cassette in a magnetic tape deviceTANDBERG DATA·Filed 1982·Granted Dec 18, 1984·13 cites·12 claims
- 3466US5243262AMethod and apparatus for compensating alternating electrical fields present at the front surface of a cathode picture tubeTANDBERG DATA·Filed 1991·Granted Sep 7, 1993·21 cites·25 claims
- 3565US6816335B2Cartridge transport and loading apparatus and methodTANDBERG DATA·Filed 2001·Granted Nov 9, 2004·8 cites·16 claims
- 3665US5982572AMethod and apparatus for enabling fast access to a logical block on a tape mediumTANDBERG DATA·Filed 1993·Granted Nov 9, 1999·18 cites·13 claims
- 3764US5872675ATape cartridge with integrated mirror tracking mechanismTANDBERG DATA·Filed 1997·Granted Feb 16, 1999·17 cites·8 claims
- 3864US5731935AMagnetic head positioning device for a tape driveTANDBERG DATA·Filed 1995·Granted Mar 24, 1998·20 cites·5 claims
- 3964US5235683AMethod and apparatus for accessing peripheral storages with asychronized individual requests to a host processorTANDBERG DATA·Filed 1989·Granted Aug 10, 1993·21 cites·8 claims
- 4063US6908055B2System for extracting magnetic recording tape from a tape cartridge for engagement with a take-up reelTANDBERG DATA·Filed 2003·Granted Jun 21, 2005·10 cites·9 claims
- 4162US4438879ASuspension for the pivotably seated tape drive motor in a cassette magnetic tape deviceTANDBERG DATA·Filed 1982·Granted Mar 27, 1984·11 cites·3 claims
- 4261US7054102B2Recording tape cartridge load and lock system and methodTANDBERG DATA·Filed 2005·Granted May 30, 2006·1 cites·19 claims
- 4360US5323280AThree point reference system for a cartridge in a tape driveTANDBERG DATA·Filed 1992·Granted Jun 21, 1994·12 cites·6 claims
- 4460US5293278ACircuit for selectively switching read signals from a multiple magnetic head into a memoryTANDBERG DATA·Filed 1992·Granted Mar 8, 1994·12 cites·17 claims
- 4559US5373406AAuto load/eject system for tape cassetteTANDBERG DATA·Filed 1993·Granted Dec 13, 1994·15 cites·22 claims
- 4658US5706149AMagnetic head positioning arrangementTANDBERG DATA·Filed 1996·Granted Jan 6, 1998·17 cites·12 claims
- 4758US4763216ACleaning cassette for a magnetic tape recorder meansTANDBERG DATA·Filed 1987·Granted Aug 9, 1988·10 cites·15 claims
- 4858US4491890ADevice for positioning a magnetic head in a magnetic tape deviceTANDBERG DATA·Filed 1982·Granted Jan 1, 1985·9 cites·12 claims
- 4957US7433150B2Data cartridge magazine and method of operation thereofTANDBERG DATA·Filed 2004·Granted Oct 7, 2008·4 cites·23 claims
- 5057US6450434B1Wide tape holding frameTANDBERG DATA·Filed 2001·Granted Sep 17, 2002·4 cites·18 claims
Showing the top 50 of 96 patent records by PatentIndex Score.
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