Inventor
Klaas-Jan De Langen
Inventor
Sunnyvale, CA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers19%
H03KPulse technique19%
G05FSystems for regulating electric or magnetic variables13%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for6%
G01RMeasuring electric variables6%
G06FElectric digital data processing6%
G06KGraphical data reading6%
G06VImage or video recognition or understanding6%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%
H04BTransmission6%
PatentTitleYear
9,953,204Fingerprint sensing system with sensing reference potential providing circuitry20188,344,740'System for diagnosing impedances having accurate current source and accurate voltage level-shift'20137,245,165'Turn-on bus transmitter with controlled slew rate'20077,138,821'Digital filter circuit and method for blocking a transmission line reflection signal'20066,542,030'Amplifier with stabilization means'20036,452,418'Level shifter with independent grounds and improved EME-isolation'20026,373,233'Low-dropout voltage regulator with improved stability for all capacitive loads'20026,366,165'Amplifier with stabilization means'20026,218,894'Voltage and/or current reference circuit'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2002Patents assigned to PHILIPS CORP (2)· patent assignee history
2001–2003Based in Hoofddorp, NL· patent location history
2002–2006Patents assigned to KONINKL PHILIPS ELECTRONICS NV (3)· patent assignee history
2002–2007Based in Sunnyvale, CA, US· patent location history
2007–2013Patents assigned to NXP BV (2)· patent assignee history
2013Patents assigned to DE LANGEN KLAAS-JAN (1)· patent assignee history
2013Based in Nijmegen, NL· patent location history
2018Patents assigned to FINGERPRINT CARDS AB (1)· patent assignee history
2018Based in Bergschenhoek, NL· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KONINKL PHILIPS ELECTRONICS NV | 3 | 2002–2006 |
| NXP BV | 2 | 2007–2013 |
| PHILIPS CORP | 2 | 2001–2002 |
| DE LANGEN KLAAS-JANself | 1 | 2013 |
| FINGERPRINT CARDS AB | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sunnyvale, California, US | 4 | 2002–2007 |
| Hoofddorp, NL | 3 | 2001–2003 |
| Bergschenhoek, NL | 1 | 2018 |
| Nijmegen, NL | 1 | 2013 |