Resources Contact Us Home
Server-assisted position determination in a radio network

Image Number 4 for United States Patent #6754583.

A client unit (102) has a client GPS receiver (104) integrated with a two-way-radio transceiver (108) and a client manager (116) for performing server-assisted global position fixes. A server unit (120) is associated with a second two-way-radio transceiver (126) and a server manager (130). The client and server managers (116 and 130) function as communication managers, and each has modules for detecting RF channel traffic, enabling transmitter portions of the transceivers (108 and 126) to transmit satellite data and position information only when there is no traffic on the RF channel.

  Recently Added Patents
Circuit and method for generating an AC voltage from a plurality of voltage sources having a temporally variable DC output voltage
Multi-radio coexistence
Automatically selecting a paper with increased dimensions than originally desired for printing and adding advertisement content to the increased dimensional area of the paper
Perfume bottle
Systems and methods for vehicle cruise control
Voltage regulator structure that is operationally stable for both low and high capacitive loads
Disk drive
  Randomly Featured Patents
Vehicle rear trunk
Method and structure to reduce optical crosstalk in a solid state imager
Methods and apparatus for integrated circuit loopback testing
Cistern flush valve assembly
Surface configuration of a taillight for a vehicle
Air-driven dental vibratory instrument with a replaceable vibrator module
Remote control for sensing movement, image display apparatus for controlling pointer by the remote control, and controlling method thereof
Vane with sides that are both convex and concave for use in coverings for architectural openings
Slingshot type gun