Inventor
SCHUCHMAN LEONARD
US26 patents
⚠️ This page may combine multiple inventors who share the name “SCHUCHMAN LEONARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
STANFORD TELECOMM INC
15 patentsUS6111538AAug 29, 2000
Cellular positioning system (CPS)
STANFORD TELECOMM INC168 citations99
US5604765AFeb 18, 1997
Position enhanced communication system including system for embedding CDMA navigation beacons under the communications signals of a wireless communication system
STANFORD TELECOMM INC223 citations99
US5422813AJun 6, 1995
No-outage GPS/commercial RF positioning system
STANFORD TELECOMM INC385 citations99
US5283780AFeb 1, 1994
Digital audio broadcasting system
STANFORD TELECOMM INC246 citations99
US5726893AMar 10, 1998
Cellular telephone with voice-in-data modem
STANFORD TELECOMM INC294 citations98
US5701328ADec 23, 1997
Chirped spread spectrum positioning system
STANFORD TELECOMM INC110 citations98
US5640453AJun 17, 1997
Universal interactive set-top controller for downloading and playback of information and entertainment services
STANFORD TELECOMM INC261 citations98
US5365450ANov 15, 1994
Hybrid GPS/data line unit for rapid, precise, and robust position determination
STANFORD TELECOMM INC514 citations98
US6049548AApr 11, 2000
Multi-access CS-P/CD-E system and protocols on satellite channels applicable to a group of mobile users in close proximity
STANFORD TELECOMM INC70 citations96
US5638399AJun 10, 1997
Multi-beam satellite communication system with user terminal frequencies having transceivers using the same set of frequency hopping
STANFORD TELECOMM INC59 citations96
US5798726AAug 25, 1998
Air traffic surveillance and communication system
STANFORD TELECOMM INC105 citations95
US5459469AOct 17, 1995
Air traffic surveillance and communication system
STANFORD TELECOMM INC171 citations95
US5577066ANov 19, 1996
Charge-coupled-device based data-in-voice modem
STANFORD TELECOMM INC28 citations92
US5351270ASep 27, 1994
Portable cellular telephone using spread spectrum communication with mobile transceiver
STANFORD TELECOMM INC45 citations92
US5598472AJan 28, 1997
Charge-coupled-device based all-analog wave form scrambling with applications in audio, video, video-on-demand, and TV systems
STANFORD TELECOMM INC11 citations74
ITT MFG ENTERPRISES INC
9 patentsUS6226529B1May 1, 2001
System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS)
ITT MFG ENTERPRISES INC373 citations98
US6169484B1Jan 2, 2001
Personal location system
ITT MFG ENTERPRISES INC132 citations97
US6148219ANov 14, 2000
Positioning system for CDMA/PCS communications system
ITT MFG ENTERPRISES INC151 citations97
USRE38808EOct 4, 2005
Cellular positioning system (CPS)
ITT MFG ENTERPRISES INC64 citations96
US6850734B1Feb 1, 2005
Position enhanced communication system including system for embedding CDMA navigation beacons under the communications signals of a wireless communication system
ITT MFG ENTERPRISES INC26 citations92
US6334061B1Dec 25, 2001
Integrated vehicle applique unit for the position enhanced cellular system
ITT MFG ENTERPRISES INC27 citations92
US6160837ADec 12, 2000
Method of avoiding near-far interference problems in an array of navigation signal beacons having selected CDMA or GPS-like navigation signals
ITT MFG ENTERPRISES INC46 citations92
US6148195ANov 14, 2000
Phase agile antenna for use in position determination
ITT MFG ENTERPRISES INC50 citations92
US6538601B2Mar 25, 2003
Hybrid system for position determination by a mobile communications terminal
ITT MFG ENTERPRISES INC30 citations90