Assignee
CELLNET DATA SYSTEMS INC
US12 patents
Top patents by PatentIndex Score
US5604768AFeb 18, 1997
Frequency synchronized bidirectional radio system
CELLNET DATA SYSTEMS INC121 citations97
US6195018B1Feb 27, 2001
Metering system
CELLNET DATA SYSTEMS INC449 citations96
US6163276ADec 19, 2000
System for remote data collection
CELLNET DATA SYSTEMS INC211 citations96
US6047016AApr 4, 2000
Processing a spread spectrum signal in a frequency adjustable system
CELLNET DATA SYSTEMS INC109 citations96
US6181258B1Jan 30, 2001
Receiver capable of parallel demodulation of messages
CELLNET DATA SYSTEMS INC103 citations95
US5661750AAug 26, 1997
Direct sequence spread spectrum system
CELLNET DATA SYSTEMS INC80 citations95
US5377232ADec 27, 1994
Frequency synchronized bidirectional radio system
CELLNET DATA SYSTEMS INC95 citations95
US6456644B1Sep 24, 2002
Bandpass correlation of a spread spectrum signal
CELLNET DATA SYSTEMS INC63 citations94
US6452986B1Sep 17, 2002
Detector tolerant of frequency misalignment
CELLNET DATA SYSTEMS INC66 citations94
US6263009B1Jul 17, 2001
Acquiring a spread spectrum signal
CELLNET DATA SYSTEMS INC81 citations94
US6178197B1Jan 23, 2001
Frequency discrimination in a spread spectrum signal processing system
CELLNET DATA SYSTEMS INC93 citations92
US6100816AAug 8, 2000
Utility meter adapter
CELLNET DATA SYSTEMS INC150 citations91