Inventor
Roeland Heijna
Inventor
Nijmegen, NL
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Fprimary
H03FAmplifiers17%
H03HImpedance networks, e.g. resonant circuits13%
H04BTransmission13%
H04LTransmission of digital information, e.g. telegraphic communication13%
H03KPulse technique9%
G05FSystems for regulating electric or magnetic variables4%
G11BInformation storage based on relative movement between record carrier and transducer4%
H03CModulation4%
H03GControl of amplification4%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses4%
PatentTitleYear
10,879,947Antenna Nx-plexer impedance matching network20209,240,919'Polar modulator'20168,699,619'Dutycycle adjustment to improve efficiency of a digital RF-PA'20148,554,158'Current saving by reduced modulation code and selective gating of RF signal'20138,373,491'Switched current mirror with good matching'20138,339,203'PA load-line tuning with capacitors around a balun'20128,294,514'Calibrate output matching for correct output power'20127,711,071'Setting the slice level in a binary signal'20107,235,985'Method and device for signal amplitude detection'20076,661,300'Ring oscillator and means for controlling the frequency thereof'20035,838,198'Gain control for parallel-arranged differential pairs'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2014Based in Nijmegen, NL· patent location history
2007–2010Patents assigned to NXP BV (2)· patent assignee history
2012–2014Patents assigned to HEIJNA ROELAND (5)· patent assignee history
2012–2016Patents assigned to ST ERICSSON SA (5)· patent assignee history
2012–2014Patents assigned to VAN DEN BOS NORBERT (5)· patent assignee history
2012–2014Patents assigned to VISSER HENDRIK (5)· patent assignee history
2012Based in Leuvensbroek, NL· patent location history
2016–2020Based in Well, NL· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEIJNA ROELANDself | 5 | 2012–2014 |
| ST ERICSSON SA | 5 | 2012–2016 |
| VAN DEN BOS NORBERT | 5 | 2012–2014 |
| VISSER HENDRIK | 5 | 2012–2014 |
| NXP BV | 2 | 2007–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nijmegen, NL | 8 | 1998–2014 |
| Well, NL | 2 | 2016–2020 |
| Leuvensbroek, NL | 1 | 2012 |