Inventor
Timothy Francis Ellis
Inventor
Tonka Bay, MN, US
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer86%
Y10TTechnical subjects covered by former us classification8%
B82YSpecific uses or applications of nanostructures3%
G01RMeasuring electric variables3%
PatentTitleYear
10,777,224Servo zone transition optimization for disk drives202010,438,620Servo zone transition optimization for magnetic disk recording devices201910,255,943Independent head, dual reader control logic20199,865,291'Primary and secondary servo timing gates used with simultaneously operating readers'20189,558,772'Position error signal (PES) detection'20179,373,355'Compensating for interference via a multi-reader system'20169,318,147'Read read-only fields while writing'20169,070,411'Writable servo overlap zones'20157,948,704'Using servo data harmonics to monitor head-medium spacing'20117,589,930'Zone based repeated runout error compensation'20097,529,051'Compensation for variation in timing skew in a disc drive data storage system'20097,511,912'Writing multiple servo sector patterns to improve servo sector alignment on multiple surfaces'20097,387,848'Recording media with mechanically patterned landing zone'20087,349,167'Utilizing track identification fields for timing recovery'20087,119,981'Method and apparatus for tracking radially-dependent repeatable run-out'20067,092,184'Monitoring a sensor\'s output using a target window that is based on a longitudinal offset\'s position-dependent indicator'20067,064,914'Position error signal quality'20066,882,487'Compensation for timing variation in disc drives employing servo tracking systems'20056,878,426'Recording media with mechanically patterned landing zone'20056,751,045'Compensation for repeatable run-out error'20046,678,110'Robust servo demodulation filtering method'20046,627,254'Method of manufacturing a recording media with mechanically patterned landing zone'20036,556,933'Transducer instability detection in a digital channel'20036,510,015'Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same'20036,469,849'Field ratioing demodulation circuit for a null-type servo pattern'20026,426,845'Asynchronous analog demodulator and method for a null-type servo pattern'20026,392,834'Concentric spacing of virtual data tracks using run-out compensation'20026,327,108'Filter calibration method in a disc drive and apparatus'20016,249,392'Head instability detection method and apparatus'20016,243,224'Asynchronous digital demodulator and method for a null-type servo pattern'20016,195,220'Method and apparatus utilizing field ratioing demodulation techniques for a null-type servo pattern'20016,181,505'Synchronous digital demodulator with integrated read and servo channels'20016,069,764'Compensation for repeatable run-out error'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000Patents assigned to SEAGATE TECHNOLOGY (1)· patent assignee history
2000–2020Based in Tonka Bay, MN, US· patent location history
2001–2020Patents assigned to SEAGATE TECHNOLOGY LLC (32)· patent assignee history
2018Based in Excelsior, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 32 | 2001–2020 |
| SEAGATE TECHNOLOGY | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tonka Bay, Minnesota, US | 32 | 2000–2020 |
| Excelsior, Minnesota, US | 1 | 2018 |