Inventor
David Price Turner
Inventor
Los Gatos, CA, US
Overview
Patents· 16 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 transducer82%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%
G02BOptical elements, systems or apparatus6%
LOC076%
PatentTitleYear
6,943,972'Selecting a track density for each disk surface of a disk drive based on head characteristic'2005D0487860'Taco plate'20046,693,760'Preamplifier circuit configurable to allow simultaneous read and write operations for self-servo writing a disk drive'20046,600,620'Self-servo writing a disk drive by propagating interleaved sets of timing clocks and servo bursts during alternate time intervals'20036,525,892'Method of calibrating a write current-setting for servo writing a disk drive'20036,519,104'Computer system comprising a host connected to a disk drive employing read channel IC with common port for data and servo'20036,487,032'Computer system comprising a host connected to a disk drive employing state variable trap registers for providing stored servo and user data state variables to sampled-data channel'20026,441,981'Disk drive including a recording surface employing servo zones recorded at a channel frequency different from data zones'20026,310,740'Disk drive including N-current preamplifier for generating N-independently controlled write currents'20016,278,568'Disk drive employing read channel IC with common port for data and servo'20016,262,857'Disk drive including a recording surface employing servo zones with banded data zones'20016,191,909'Polling a preamplifier within a disk drive to remotely determine pre-established parametric values'20016,178,056'Disk drive employing state variable trap registers for providing stored servo and user data state variables to sampled-data channel'20016,111,717'Disk drive comprising a programmable preamplifier including a multiplexer for selecting between internal digital signals for output to a terminal'20005,726,821'Programmable preamplifier unit with serial interface for disk data storage device using MR heads'19984,027,975'Scanning monochromator and concave reflecting grating employed therein'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to NAT RES DEV (1)· patent assignee history
1977Based in London, GB· patent location history
1998–2001Patents assigned to WESTERN DIGITAL CORP (5)· patent assignee history
1998–2005Based in Los Gatos, CA, US· patent location history
2001–2005Patents assigned to WESTERN DIGITAL TECH INC (8)· patent assignee history
2001Patents assigned to WESTERN DIGITAL (1)· patent assignee history
2004Based in Bloomington, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTERN DIGITAL TECH INC | 8 | 2001–2005 |
| WESTERN DIGITAL CORP | 5 | 1998–2001 |
| NAT RES DEV | 1 | 1977 |
| WESTERN DIGITAL | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Los Gatos, California, US | 14 | 1998–2005 |
| Bloomington, Minnesota, US | 1 | 2004 |
| London, GB | 1 | 1977 |