Inventor
JOHNSON MARTIN R
US17 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON MARTIN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PARKERVISION INC
5 patentsUS6879817B1Apr 12, 2005
DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
PARKERVISION INC108 citations99
US7539474B2May 26, 2009
DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
PARKERVISION INC51 citations98
US7379515B2May 27, 2008
Phased array antenna applications of universal frequency translation
PARKERVISION INC78 citations98
US7082171B1Jul 25, 2006
Phase shifting applications of universal frequency translation
PARKERVISION INC97 citations98
US7894789B2Feb 22, 2011
Down-conversion of an electromagnetic signal with feedback control
PARKERVISION INC31 citations96
JOHNSON MARTIN R
3 patentsGLAXO GROUP LTD
2 patentsDIGI INT INC
2 patentsUSD564502SMar 18, 2008
Radio modem with circuit board
DIGI INT INC2 citations57
US7877073B2Jan 25, 2011
Superheterodyne receiver having at least one downconversion stage empolying a single image reject filter stage and both low-side injection and high-side injection of a local oscillator signal
DIGI INT INC0 citations31