Inventor
ROWITCH DOUGLAS N
US17 patents
⚠️ This page may combine multiple inventors who share the name “ROWITCH DOUGLAS N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
QUALCOMM INC
15 patentsUS6304991B1Oct 16, 2001
Turbo code interleaver using linear congruential sequence
QUALCOMM INC121 citations99
US6861980B1Mar 1, 2005
Data messaging efficiency for an assisted wireless position determination system
QUALCOMM INC272 citations98
US7039418B2May 2, 2006
Position determination in a wireless communication system with detection and compensation for repeaters
QUALCOMM INC64 citations97
US6873910B2Mar 29, 2005
Procedure for searching for position determination signals using a plurality of search modes
QUALCOMM INC28 citations92
US6825805B2Nov 30, 2004
Search procedure for position determination system
QUALCOMM INC31 citations92
US6637000B2Oct 21, 2003
Turbo code interleaver using linear congruential sequences
QUALCOMM INC31 citations92
US7859453B2Dec 28, 2010
Multiple radio device having adaptable mode navigation radio
QUALCOMM INC20 citations89
US8730100B2May 20, 2014
On demand positioning
QUALCOMM INC8 citations83
US7450064B2Nov 11, 2008
Methods and systems for deriving seed position of a subscriber station in support of unassisted GPS-type position determination in a wireless communication system
QUALCOMM INC10 citations80
US7292188B2Nov 6, 2007
Apparatus and method for CDMA time pseudolite for repeater identification
QUALCOMM INC6 citations73
US7127011B2Oct 24, 2006
Procedure for jammer detection
QUALCOMM INC6 citations73
US9244146B2Jan 26, 2016
Positioning beacon transmitter
QUALCOMM INC5 citations72
US7657230B2Feb 2, 2010
Procedure for detecting interfering multi-path condition
QUALCOMM INC4 citations62
US9042913B2May 26, 2015
Transmitter position integrity checking
QUALCOMM INC2 citations60
US8855674B2Oct 7, 2014
Transmitter position integrity checking
QUALCOMM INC1 citations60