Inventor
FREY DOUGLAS R
US17 patents
⚠️ This page may combine multiple inventors who share the name “FREY DOUGLAS R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SILICON LAB INC
7 patentsUS6747522B2Jun 8, 2004
Digitally controlled crystal oscillator with integrated coarse and fine control
SILICON LAB INC149 citations97
US6639534B2Oct 28, 2003
Digital-to-analog converter switching circuitry
SILICON LAB INC56 citations96
US7548123B2Jun 16, 2009
Dividerless PLL architecture
SILICON LAB INC9 citations84
US6909390B2Jun 21, 2005
Digital-to-analog converter switching circuitry
SILICON LAB INC10 citations74
US9143373B2Sep 22, 2015
Transport of an analog signal across an isolation barrier
SILICON LAB INC6 citations71
US7269254B2Sep 11, 2007
Integrated driver circuitry
SILICON LAB INC2 citations62
US7688119B2Mar 30, 2010
Power supply with digital control loop
SILICON LAB INC0 citations40
FREY DOUGLAS R
4 patentsUS4495640AJan 22, 1985
Adjustable distortion guitar amplifier
FREY DOUGLAS R67 citations95
US4823093AApr 18, 1989
Dynamically biased voltage controlled element
FREY DOUGLAS R17 citations73
US4560947ADec 24, 1985
Monolithic voltage controlled element
FREY DOUGLAS R12 citations73
US4471320ASep 11, 1984
Voltage controlled element
FREY DOUGLAS R8 citations73