Inventor

HART ROGER CHARLES

US3 patents

⚠️ This page may combine multiple inventors who share the name “HART ROGER CHARLES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MOTOROLA INC

2 patents

US6134484AOct 17, 2000

Method and apparatus for maintaining the integrity of spacecraft based time and position using GPS

MOTOROLA INC54 citations91

US6633621B1Oct 14, 2003

Apparatus and method for synchronizing a clock using a phase-locked loop circuit

MOTOROLA INC70 citations90

GEN DYNAMICS DECISION SYSTEMS

1 patent

US6535801B1Mar 18, 2003

Method and apparatus for accurately determining the position of satellites in geosynchronous orbits

GEN DYNAMICS DECISION SYSTEMS79 citations96