Assignee
DCARD INC
US·14 granted patents·4 pending applications·82 citations·filing 1999–2007
Top patents by PatentIndex Score
18 records- 0177US6728059B2Magnetic data card servo writerDCARD INC·Filed 2002·Granted Apr 27, 2004·7 cites·15 claims
- 0274US6311893B1Optical data access system with data card reader having a single rotational moving pickup headDCARD INC·Filed 1999·Granted Nov 6, 2001·15 cites·27 claims
- 0373US6775080B2Data access device implemented with open and closed control loops to access data stored in discrete stepwise segmentsDCARD INC·Filed 2001·Granted Aug 10, 2004·9 cites·6 claims
- 0471US7334733B2Data access device using rotational head to access data stored in data strips and data arc segments or data circlesDCARD INC·Filed 2003·Granted Feb 26, 2008·9 cites·28 claims
- 0565US7336569B2Optical disk tracking servo circuit enabled to compensate for non-continuous track segments or prolonged defectDCARD INC·Filed 2004·Granted Feb 26, 2008·6 cites·12 claims
- 0661US6934098B2Data card with a full circular track for alignment and amplitude calibrationDCARD INC·Filed 2001·Granted Aug 23, 2005·8 cites·29 claims
- 0758US6588671B2Positioning of a recording head for a data storage deviceDCARD INC·Filed 2001·Granted Jul 8, 2003·4 cites·28 claims
- 0854US6502755B2Optical data storage cardDCARD INC·Filed 1999·Granted Jan 7, 2003·6 cites·40 claims
- 0952US6417980B1Magnetic data card servo writerDCARD INC·Filed 1999·Granted Jul 9, 2002·5 cites·2 claims
- 1052US6339569B1Optical data card servo writerDCARD INC·Filed 1999·Granted Jan 15, 2002·5 cites·2 claims
- 1149US2008267047A1Secure optical data card systemDCARD INC·Filed 2007·Application pending·0 cites
- 1248US7185814B2Layer structure and method of manufacture for optical memory strip (OMS)DCARD INC·Filed 2004·Granted Mar 6, 2007·2 cites·75 claims
- 1347US6307709B1Magnetic data storage cardDCARD INC·Filed 1999·Granted Oct 23, 2001·4 cites·40 claims
- 1442US2006039246A1Adaptive system to allow multiple update and correction sessions on an optical data storage cardDCARD INC·Filed 2004·Application pending·0 cites
- 1542US2006248548A1Optical card drive with adaptive receiving tray and focusing adaptorDCARD INC·Filed 2005·Application pending·0 cites
- 1640US6545831B1Servo-sector arrangement over several data arcs for a rotational head data recording and retrieving systemDCARD INC·Filed 2000·Granted Apr 8, 2003·0 cites·14 claims
- 1740US2004218518A1Multi-layered data storage cardDCARD INC·Filed 2004·Application pending·0 cites
- 1827US6499659B1Pulse shaping for a transformer coupled read/write recording deviceDCARD INC·Filed 1999·Granted Dec 31, 2002·2 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →