Christian A Gellrich

6845091, Jan 18, 2005

Dec 1, 2000

09/728211

Richard G. Ogier - Half Moon Bay CA, US
Carla Peccolo Woodworth - San Mateo CA, US
Fred Lambert Templin - Portola Valley CA, US
Bhargav R. Bellur - Fremont CA, US
James A. Arnold - Helena MT, US
D. Scott Seaton - Fremont CA, US
Michael W. Frandsen - Helena MT, US
Nathan W. Williams - Helena MT, US
Christian A Gellrich - Redwood City CA, US

SRI International - Menlo Park CA

H04Q 724

370338, 370349, 370466, 709239, 709242

Described is an internetworking system having various mobile ad hoc extensions to the Internet that are particularly suited to the dynamic environment of mobile ad hoc networks. The internetworking system includes any combination of a link-state routing protocol for disseminating topology and link-state information over a multi-hop network comprised of nodes, a neighbor discovery protocol that can detect the appearance and disappearance of new neighbor nodes, an address format that facilitates deployment of IPv6 nodes in a predominantly IPv4 network infrastructure, a queuing mechanism that can update information upon resuming interrupted communications between nodes, and dynamic network measurement techniques for adaptively using wireless bandwidth when establishing and maintaining connections between nodes and a server.

6459989, Oct 1, 2002

Mar 3, 2000

09/517897

Michael Kirkpatrick - Hayward CA
Jeffrey Casper - Mountain View CA
Clay Ross - Mountain View CA
D. Scott Seaton - Fremont CA
Christian Gellrich - Redwood City CA
Michael Cutter - Fremont CA
James Binnion - Oakland CA

SRI International - Menlo Park CA

G01C 200

701215, 701213, 701214, 701207, 340988, 340426, 342457, 342450, 342 45, 34235706, 34235709, 34235717, 455 62, 455452, 455465, 455509, 370431, 370329, 370316, 370320

An integrated indoor and outdoor positioning system and method. A first communication unit aperiodically emits an ultrasonic signal. A second communication unit receives the ultrasonic signal and transmits an identification signal in response to receiving the ultrasonic signal. One of the two communication units is placed at a predetermined position and the other of the two communication units is placed with an object. Identification information obtained from the identification signal is used to determine position information indicating that the object is at the predetermined position. The first communication unit is placed at the predetermined position and the second communication unit accompanies the object. Alternatively, the first communication unit accompanies the object and the second communication unit is placed at the predetermined position. One of the two communication units may also include a GPS receiver for receiving GPS signals from a plurality of satellites or pseudolites and computing position information therefrom.