Inventor
Philip John Crawley
Inventor
Sacramento, CA, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication19%
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 systems10%
G06FElectric digital data processing6%
H02HEmergency protective circuit arrangements6%
H03FAmplifiers6%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers6%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general3%
G01RMeasuring electric variables3%
G08BSignalling systems, e.g. personal calling systems3%
PatentTitleYear
10,193,448Method of forming a power supply control circuit and structure therefor201910,060,954Load capacitance determination circuitry and power supply control201810,015,608Methods and apparatus related to protection of a speaker201810,014,695Control and current measurement function for battery charging, protection and fuel gauge coulomb counting20189,729,986'Protection of a speaker using temperature calibration'20179,355,536'Resonance driver for determining a resonant frequency of a haptic device'20169,197,423'Electrostatic discharge protection circuit'20159,189,036'Ethernet module'20159,185,834'Isolated ethernet physical layer (PHY)'20158,400,230'Frequency modulation of clocks for EMI reduction'20137,965,480'Electrostatic discharge protection circuit'20117,923,710'Digital isolator with communication across an isolation barrier'20117,898,825'Adaptive ramp compensation for current mode-DC-DC converters'20117,855,866'Network interface with transient protection apparatus for multiple ground planes'20107,732,889'Capacitor structure in a semiconductor device'20107,706,112'Active clamp protection device'20107,685,452'Method for high voltage power feed on differential cable pairs from a network attached power sourcing device'20107,634,028'Selecting clock frequencies for baseband devices'20097,560,825'Network devices for separating power and data signals'20097,500,118'Network device with power potential rectifier'20097,218,179'Methods and apparatus for calibrating gm-Z'20076,147,631'Input sampling structure for delta-sigma modulator'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2009Based in Austin, TX, US· patent location history
2009–2015Patents assigned to AKROS SILICON INC (13)· patent assignee history
2009–2011Based in Folsom, CA, US· patent location history
2010–2015Based in Sacramento, CA, US· patent location history
2013–2015Patents assigned to CRAWLEY PHILIP JOHN (4)· patent assignee history
2015Patents assigned to CAMAGNA JOHN R (3)· patent assignee history
2015Patents assigned to GHOSHAL SAJOL (2)· patent assignee history
2016–2018Patents assigned to FAIRCHILD SEMICONDUCTOR (5)· patent assignee history
2016–2019Based in Oceanside, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AKROS SILICON INC | 13 | 2009–2015 |
| FAIRCHILD SEMICONDUCTOR | 5 | 2016–2018 |
| CRAWLEY PHILIP JOHNself | 4 | 2013–2015 |
| CAMAGNA JOHN R | 3 | 2015 |
| GHOSHAL SAJOL | 2 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sacramento, California, US | 9 | 2010–2015 |
| Oceanside, California, US | 6 | 2016–2019 |
| Folsom, California, US | 4 | 2009–2011 |
| Austin, Texas, US | 3 | 2000–2009 |