Assignee
ZEN RES NV
AN·19 granted patents·469 citations·filing 1994–1998
Technology mixG11B19
Top patents by PatentIndex Score
19 records- 0194US5959953AMethods and apparatus for performing cross-talk correction in a multi-track optical disk reader based on magnification errorZEN RES NV·Filed 1998·Granted Sep 28, 1999·90 cites·20 claims
- 0288US5598393AMethod and apparatus for reading dataZEN RES NV·Filed 1995·Granted Jan 28, 1997·40 cites·6 claims
- 0387US5566159AOptical disk readerZEN RES NV·Filed 1994·Granted Oct 15, 1996·41 cites·5 claims
- 0483US5592444AMethod of writing data simultaneously on a plurality of tracks of an optical disk, and apparatus thereforZEN RES NV·Filed 1994·Granted Jan 7, 1997·33 cites·12 claims
- 0581US5627805AMethods and apparatus for high speed optical storage deviceZEN RES NV·Filed 1995·Granted May 6, 1997·37 cites·24 claims
- 0680US5701283AMethod and apparatus for high speed optical storage deviceZEN RES NV·Filed 1995·Granted Dec 23, 1997·35 cites·20 claims
- 0779US5574712ADetector matrix for acquiring track data from multiple tracksZEN RES NV·Filed 1995·Granted Nov 12, 1996·23 cites·4 claims
- 0878US6111831AMethods and apparatus for simultaneously reading multiple tracks of an optical storage mediumZEN RES NV·Filed 1998·Granted Aug 29, 2000·27 cites·20 claims
- 0978US5793715AMethods and apparatus for reducing the access time of an optical driveZEN RES NV·Filed 1995·Granted Aug 11, 1998·33 cites·29 claims
- 1068US5774432AFocussing system and methods for multi- track optical disk apparatusZEN RES NV·Filed 1997·Granted Jun 30, 1998·18 cites·15 claims
- 1166US5729512AMagnification and tracking error correction system for multiple track optical disk readerZEN RES NV·Filed 1996·Granted Mar 17, 1998·18 cites·30 claims
- 1261US5907526AMethods and apparatus for simultaneously reading multiple tracks of an optical storage mediumZEN RES NV·Filed 1997·Granted May 25, 1999·13 cites·12 claims
- 1354US5917797AMulti-beam optical pickup assembly and methods using a compact two-dimensional arrangement of beamsZEN RES NV·Filed 1997·Granted Jun 29, 1999·19 cites·30 claims
- 1453US5652746AElectronic track detection methods for apparatus for simultaneously reading multiple adjacent tracks of an optical diskZEN RES NV·Filed 1995·Granted Jul 29, 1997·10 cites·22 claims
- 1551US5793549AMethods and apparatus for synchronizing read out of data from multiple tracks of an optical storage deviceZEN RES NV·Filed 1997·Granted Aug 11, 1998·8 cites·15 claims
- 1649US5825743AIlluminating multiple data tracks of an optical disk with a laser source of reduced coherenceZEN RES NV·Filed 1996·Granted Oct 20, 1998·8 cites·23 claims
- 1748US5708634AFocussing system and methods for multi-track optical disk apparatusZEN RES NV·Filed 1995·Granted Jan 13, 1998·7 cites·14 claims
- 1844US6028827AMethods and apparatus for synchronizing read out of data from multiple tracks of an optical storage deviceZEN RES NV·Filed 1998·Granted Feb 22, 2000·5 cites·24 claims
- 1938US5802025ATrack detection methods and apparatus for simultaneous monitoring of multiple adjacent tracks of an optical diskZEN RES NV·Filed 1997·Granted Sep 1, 1998·4 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →