Inventor

Richard Dean Henderson

Inventor

Sunnyvale, CA, US

Overview

18→

Patents

1989–2021

Patent span

Physics

Primary field (CPC G)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Kprimary

G01KMeasuring temperature22%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%

G01DMeasuring not specially adapted for a specific variable7%

H03HImpedance networks, e.g. resonant circuits7%

H03MCoding7%

H04LTransmission of digital information, e.g. telegraphic communication7%

F04DNon-positive-displacement pumps4%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock4%

G05DSystems for controlling or regulating non-electric variables4%

G06FElectric digital data processing4%

PatentTitleYear

11,038,978Method, apparatus, computer program product, computer readable storage medium, information processing apparatus and server for performing browser redirections using fixed value cookies2021 10,036,656Position detecting system based on inductive sensing2018 9,479,134'Position detecting system'2016 7,828,479'Three-terminal dual-diode system for fully differential remote temperature sensors'2010 7,825,838'Capacitor rotation method for removing gain error in sigma-delta analog-to-digital converters'2010 7,825,837'Background calibration method for analog-to-digital converters'2010 7,252,432'Efficient method of sharing diode pins on multi-channel remote diode temperature sensors'2007 7,082,377'Apparatus for error cancellation for dual diode remote temperature sensors'2006 6,808,307'Time-interleaved sampling of voltages for improving accuracy of temperature remote sensors'2004 6,778,938'Fan speed detection in the presence of PWM speed control'2004 6,765,422'High resolution fan control at high PWM frequency with a low clock frequency input'2004 6,757,592'Nonlinear fan control'2004 6,737,824'Fan acceleration control'2004 6,637,934'Constant offset buffer for reducing sampling time in a semiconductor temperature sensor'2003 6,332,710'Multi-channel remote diode temperature sensor'2001 5,546,433'Digital phase lock loop having frequency offset cancellation circuitry'1996 5,022,056'Method and structure for digital phase synchronization'1991 4,887,240'Staggered refresh for dram array'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2010Patents assigned to NAT SEMICONDUCTOR CORP (15)· patent assignee history

1989–2010Based in Sunnyvale, CA, US· patent location history

2010–2018Based in San Jose, CA, US· patent location history

2016–2018Patents assigned to TEXAS INSTRUMENTS INC (2)· patent assignee history

2021Patents assigned to IPCO 2012 LTD (1)· patent assignee history

2021Based in London, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NAT SEMICONDUCTOR CORP	15	1989–2010
TEXAS INSTRUMENTS INC	2	2016–2018
IPCO 2012 LTD	1	2021

Locations

Location	Patents	Span
Sunnyvale, California, US	13	1989–2010
San Jose, California, US	4	2010–2018
London, GB	1	2021