Inventor
Richard G. Keegan
Inventor
Palos Verdes Estates, CA, US
Overview
Patents· 39 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Sprimary
G01SRadio direction-finding44%
H04BTransmission17%
H04LTransmission of digital information, e.g. telegraphic communication14%
H04WWireless communication networks11%
G08GTraffic control systems5%
H04MTelephonic communication5%
G01CMeasuring distances, levels or bearings2%
H03GControl of amplification1%
H04JMultiplex communication1%
PatentTitleYear
10,969,496RTK vector phase locked loop architecture202110,859,709Satellite navigation receiver with fixed point sigma rho filter202010,048,385Satellite navigation receiver with fixed point sigma RHO filter20189,661,134'Systems and methods for IP and VoIP device location determination'20179,482,740'Determining location of a receiver with a multi-subcarrier signal'20169,383,430'Determining location of a receiver with a multi-subcarrier signal'20169,379,765'Method and receiver for receiving a binary offset carrier composite signal'20169,319,519'Systems and methods for IP and VoIP device location determination'20169,310,464'Determining location of a receiver with a multi-subcarrier signal'20169,261,576'Navigation using range measurements to OFDM transmitters'20169,194,936'Determining location of a receiver with a multi-subcarrier signal'20159,197,478'Method and receiver for receiving a composite signal'20159,191,061'Method and receiver for receiving a composite signal'20159,184,973'Method and receiver for receiving a binary offset carrier composite signal'20159,048,964'Receiver and method for receiving a composite signal'20159,036,682'Phase multi-path mitigation'20158,942,264'Receiver and method for receiving a composite signal'20158,942,157'Receiver and method for receiving a composite signal'20158,867,531'Systems and methods for IP and VoIP device location determination'20148,837,654'Signal receiver with group delay and amplitude distortion compensation'20148,837,653'High frequency signal receiver with self-calibrated group delay compensation'20148,781,039'Receiver and method for receiving a composite signal'20148,195,200'Locating system and method'20128,154,445'System and method for frequency domain correction of global navigation satellite system pseudorance measurements in receivers having controlled reception pattern antennas'20127,961,717'System and methods for IP and VoIP device location determination'20117,495,610'System and method for decimating global positioning system signals'20097,453,925'Phase multi-path mitigation'20087,133,480'Method and apparatus for processing digitally sampled signals at a resolution finer than that of a sampling clock'20067,099,406'Alias sampling for IF-to-baseband conversion in a GPS receiver'20066,806,827'Using FFT engines to process decorrelated GPS signals to establish frequencies of received signals'20046,670,914'RF system for rejection of L-band jamming in a GPS receiver'20036,243,026'Automatic determination of traffic signal preemption using GPS, apparatus and method'20016,160,841'Mitigation of multipath effects in global positioning system receivers'20005,986,575'Automatic determination of traffic signal preemption using GPS, apparatus and method'19995,926,113'Automatic determination of traffic signal preemption using differential GPS'19995,535,278'Global positioning system (GPS) receiver for recovery and tracking of signals modulated with P-code'19965,040,240'Receiver architecture for use with a global positioning system'19914,972,431'P-code-aided global positioning system receiver'19904,611,293'Method and apparatus for automatic calibration of magnetic compass'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1991Patents assigned to MAGNAVOX CO (3)· patent assignee history
1986–2001Based in Torrance, CA, US· patent location history
1999–2001Patents assigned to 3M INNOVATIVE PROPERTIES CO (2)· patent assignee history
2003–2009Patents assigned to RF MICRO DEVICES INC (4)· patent assignee history
2003–2021Based in Palos Verdes Estates, CA, US· patent location history
2011–2017Patents assigned to IPOSI INC (4)· patent assignee history
2011–2017Based in Rancho Palos Verdes, CA, US· patent location history
2014–2021Patents assigned to DEERE & CO (19)· patent assignee history
2015Based in Rancho Palo Verde, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DEERE & CO | 19 | 2014–2021 |
| IPOSI INC | 4 | 2011–2017 |
| RF MICRO DEVICES INC | 4 | 2003–2009 |
| MAGNAVOX CO | 3 | 1986–1991 |
| 3M INNOVATIVE PROPERTIES CO | 2 | 1999–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Palos Verdes Estates, California, US | 24 | 2003–2021 |
| Torrance, California, US | 8 | 1986–2001 |
| Rancho Palos Verdes, California, US | 4 | 2011–2017 |
| Rancho Palo Verde, California, US | 3 | 2015 |