Inventor · disambiguated record
Richard W. Hull
Also filed as: HULL RICHARD W · HULL RICHARD WILLIAM
21 granted patents·2,338 citations·filing 1982–2006
97Inventor score
Files withWESTERN DIGITAL CORP12WESTERN DIGITAL TECH INC6RATEZE REMOTE MGMT L L C1WESTERN DIGITAL1WESTERN DIGITAL SINGAPORE PTE1
Top patents by PatentIndex Score
21 records- 0199US6519104B1Computer system comprising a host connected to a disk drive employing read channel IC with common port for data and servoWESTERN DIGITAL TECH INC·Filed 2002·Granted Feb 11, 2003·161 cites·10 claims
- 0299US6487032B1Computer 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 channelWESTERN DIGITAL TECH INC·Filed 2002·Granted Nov 26, 2002·176 cites·4 claims
- 0399US6441981B1Disk drive including a recording surface employing servo zones recorded at a channel frequency different from data zonesWESTERN DIGITAL TECH INC·Filed 2001·Granted Aug 27, 2002·178 cites·18 claims
- 0499US6262857B1Disk drive including a recording surface employing servo zones with banded data zonesWESTERN DIGITAL CORP·Filed 1998·Granted Jul 17, 2001·184 cites·3 claims
- 0599US6178056B1Disk drive employing state variable trap registers for providing stored servo and user data state variables to sampled-data channelWESTERN DIGITAL CORP·Filed 1999·Granted Jan 23, 2001·201 cites·4 claims
- 0698US6278568B1Disk drive employing read channel IC with common port for data and servoWESTERN DIGITAL·Filed 1998·Granted Aug 21, 2001·254 cites·10 claims
- 0797US6580573B1Disk drive having a channel circuit which receives a read signal representing data in a data sector and data in a servo sector in a first order and demodulates the read signal to provide data sector data and servo-sector data in a second orderWESTERN DIGITAL TECH INC·Filed 2000·Granted Jun 17, 2003·150 cites·20 claims
- 0897US6415349B1Disk drive with unified channel-disk controller bus for transmitting user data, servo data, and register dataWESTERN DIGITAL TECH INC·Filed 2000·Granted Jul 2, 2002·204 cites·21 claims
- 0996US6067206AMethod and apparatus to compensate for servo wedge rotational offset after a head switchWESTERN DIGITAL CORP·Filed 1997·Granted May 23, 2000·193 cites·16 claims
- 1095US7028174B1Disk drive employing a non-volatile serial semiconductor memory for storing a control program for a microprocessorWESTERN DIGITAL TECH INC·Filed 2002·Granted Apr 11, 2006·167 cites·33 claims
- 1192US4808884AHigh order digital phase-locked loop systemWESTERN DIGITAL CORP·Filed 1985·Granted Feb 28, 1989·69 cites·18 claims
- 1291US5115151ATriple comparator circuitWESTERN DIGITAL CORP·Filed 1990·Granted May 19, 1992·67 cites·4 claims
- 1391US4947063AMethod and apparatus for reducing transient noise in integrated circuitsWESTERN DIGITAL CORP·Filed 1988·Granted Aug 7, 1990·65 cites·85 claims
- 1489US5956196ADisk drive employing dynamically reconfigured read channel to process a read signal at two different frequenciesWESTERN DIGITAL CORP·Filed 1997·Granted Sep 21, 1999·64 cites·6 claims
- 1586US7924881B2Datagram identifier managementRATEZE REMOTE MGMT L L C·Filed 2006·Granted Apr 12, 2011·19 cites·9 claims
- 1683US5017919ADigital-to-analog converter with bit weight segmented arraysWESTERN DIGITAL CORP·Filed 1990·Granted May 21, 1991·51 cites·23 claims
- 1783US4859873ACMOS Schmitt trigger with independently biased high/low threshold circuitsWESTERN DIGITAL CORP·Filed 1987·Granted Aug 22, 1989·32 cites·18 claims
- 1874US5311376AInformation detecting systemWESTERN DIGITAL SINGAPORE PTE·Filed 1991·Granted May 10, 1994·27 cites·12 claims
- 1974US4519086AMOS Phase lock loop synchronization circuitWESTERN DIGITAL CORP·Filed 1982·Granted May 21, 1985·37 cites·2 claims
- 2061US5600499ATri-bit encoding for disk drive servo track ID informationWESTERN DIGITAL CORP·Filed 1993·Granted Feb 4, 1997·21 cites·9 claims
- 2161US4706045AVoltage controlled oscillator with dual loop resonant tank circuitWESTERN DIGITAL CORP·Filed 1986·Granted Nov 10, 1987·18 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →