1
Leonard Schuchman, Ronald Bruno, Robert Rennard, Charles Moses: Hybrid GPS/data line unit for rapid, precise, and robust position determination. Stanford Telecommunications, Jim Zegeer, November 15, 1994: US05365450 (270 worldwide citation)

A global positioning system (GPS) in which a plurality earth orbiting satellites transmit position information to mobile radio stations on earth, is provided with a separate source satellite position data broadcast digital channels and one or more dial-up service separate communication channels (sel ...


2
Leonard Schuchman, Aaron Weinberg, Lloyd Engelbrecht: No-outage GPS/commercial RF positioning system. Stanford Telecommunications, Jim Zegeer, June 6, 1995: US05422813 (222 worldwide citation)

The present invention relates to a no outage GPS/AM position finding system wherein a GPS system having a plurality of satellites transmits time and location data over radio frequency signals to enable a mobile GPS receiver station on the ground to determine its position, and a cellular telephone is ...


3
G Daniel Urban, Robert McCarthy, David Schuchman, Ronald Bruno: Position enhanced cellular telephone system. Stanford Telecommunications, Jim Zegeer Esq, May 13, 1997: US05630206 (216 worldwide citation)

A position monitoring system having a position finder subsystem connected via a cellular telephone to a central monitoring station, a receive/transmit device carried with the position monitoring subsystem. A remote personal signalling subsystem comprising an RF coder modulator for transmitting a cod ...


4
Aaron Weinberg, Kenneth D Cunningham, Daniel Urban, Matthew S Simmons, Thomas Land, Martin W Tucker: Receiver having for charge-coupled-device based receiver signal processing. Stanford Telecommunications, Jim Zegeer, January 9, 1996: US05483549 (187 worldwide citation)

This invention relates to a novel receiver architecture, the Charge-Coupled-Device Integrated Receiver (IR), which simplifies electronic circuitry requirements and reduce baseband processing rates through efficient signal processing. The focus of this receiver's design is its use of Charge-Coupled-D ...


5
Herman Bustamante, Horen Chen: Local multipoint distribution system. Stanford Telecommunications, Jim Zegeer ESQ, September 15, 1998: US05809431 (172 worldwide citation)

A local multipoint distribution system having a head end coupled to a plurality of base stations with each base station constituting a cell. Each base station has a plurality of sector beam antennas, each sector beam antenna illuminating a predetermined sector of the cell with RF communication signa ...


6
Herman Bustamante, Francis Natali, David T Magill: Wireless direct sequence spread spectrum digital cellular telephone system. Stanford Telecommunications, Jim Zegeer, December 20, 1994: US05375140 (162 worldwide citation)

The present invention is directed to novel implementation techniques which makes orthogonal CDMA practical in an a short range mobile telephone environment where significant multipath fading exists. Specifically, novel techniques for establishing the time base, frequency, and power control necessary ...


7
Lloyd Engelbrecht, Aaron Weinberg: Location determination system and method using television broadcast signals. Stanford Telecommunications, Jim Zegeer, April 23, 1996: US05510801 (155 worldwide citation)

A location determination system and method in which mobile receiver units are in an area of at least three fixed commercial television stations, each television station broadcasting standard television signals, including horizontal, vertical and chrominance burst synchronizing signals. The standard ...


8
Leonard Schuchman, Ronald Bruno, Charles Moses: Cellular telephone with voice-in-data modem. Stanford Telecommunications, Jim Zegeer Esq, March 10, 1998: US05726893 (154 worldwide citation)

A GPS system has a plurality of satellites transmitting time and location data over radio frequency signals which enable a mobile GPS receiver on the ground to determine its position, includes a source of satellite data message block containing the ephemeris and time modes of the GPS satellites whic ...


9
Leonard Schuchman, Kenneth Cunningham, Joseph Smallcomb: Universal interactive set-top controller for downloading and playback of information and entertainment services. Stanford Telecommunications, Jim Zegeer Esq, June 17, 1997: US05640453 (140 worldwide citation)

A universal interactive control system for the downloading and playback of information and entertainment services from one or more network distribution centers, said one or more network distribution centers providing information and entertainment signals selected from video and audio programs, video ...


10
Leonard Schuchman, John E Miller, Ronald Bruno: Digital audio broadcasting system. Stanford Telecommunications, Jim Zegeer, February 1, 1994: US05283780 (139 worldwide citation)

A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels to mobile receivers in an environment with severe multipath delay and fading. Optimum combination of frequency and time diversity to guarantee robust performance in the mobile channe ...