Inventor

Jan Roelof Westra

Inventor

Uithoorn, NL

Overview

23→

Patents

2002–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 23 as inventor

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

H03Mprimary

H03MCoding29%

H03KPulse technique16%

H04BTransmission16%

H03HImpedance networks, e.g. resonant circuits8%

H02HEmergency protective circuit arrangements5%

H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner5%

H04LTransmission of digital information, e.g. telegraphic communication5%

H01LSemiconductor devices3%

H01QAntennas, i.e. radio aerials3%

H03FAmplifiers3%

PatentTitleYear

10,903,641Fast overvoltage protection circuit with digital control2021 10,250,338Transmitter drive with improved transmitter performance and reliability2019 10,014,877Multi-segmented all logic DAC2018 9,543,752'Overvoltage protection circuit with digital control'2017 9,031,177'Digital calibration of analog distortion using split analog front-end'2015 8,447,242'Hybrid circuit for a transceiver front-end'2013 8,081,932'Transceiver front-end'2011 7,741,920'Quadrature oscillator with simplified amplitude, phase and frequency control'2010 7,616,144'Resistor ladder interpolation for PGA and DAC'2009 7,551,035'Fast converter for crossing voltage domains'2009 7,482,891'Interpolating programmable gain attenuator'2009 7,414,482'Resonance mode selection using a resonator-synchronized second-order oscillator'2008 7,324,038'Subranging analog to digital converter with multi-phase clock timing'2008 7,271,755'Resistor ladder interpolation for PGA and DAC'2007 7,242,267'Interpolating programmable gain attenuator'2007 7,135,942'Interpolating programmable gain attenuator'2006 7,098,829'Digital to analog conversion'2006 7,027,790'Transceiver front-end'2006 6,653,966'Subranging analog to digital converter with multi-phase clock timing'2003 6,583,747'Subranging analog to digital converter with multi-phase clock timing'2003 6,501,401'Means for compensating a data-dependent supply current in an electronic circuit'2002 6,501,407'Digital to analog converter'2002 6,426,715'Digital to analog converter'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2006Patents assigned to KONINKL PHILIPS ELECTRONICS NV (4)· patent assignee history

2002–2013Based in Amstelveen, NL· patent location history

2003–2017Patents assigned to BROADCOM CORP (16)· patent assignee history

2003–2021Based in Uithoorn, NL· patent location history

2011–2013Patents assigned to LIN CHI-HUNG (2)· patent assignee history

2018–2021Patents assigned to AVAGO TECHNOLOGIES GENERAL IP (3)· patent assignee history

2019–2021Patents assigned to AVAGO TECH INT SALES PTE LID (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BROADCOM CORP	16	2003–2017
KONINKL PHILIPS ELECTRONICS NV	4	2002–2006
AVAGO TECHNOLOGIES GENERAL IP	3	2018–2021
AVAGO TECH INT SALES PTE LID	2	2019–2021
LIN CHI-HUNG	2	2011–2013

Locations

Location	Patents	Span
Uithoorn, NL	17	2003–2021
Amstelveen, NL	6	2002–2013