Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Multiple channel communications system










Image Number 12 for United States Patent #7336969.

A multi-channel communications system for communications between a mobile units and dispatch agencies through tower sites under control of a multi-channel communication controller. The method of communications used is time division multiple access with provisions for alternate methods. The mobile units and dispatch agencies have forms of identifications to route messages between the mobile units and dispatch agencies according to the forms of identification. The forms of identification are resolved from one form to another to operate with the alternate methods of communications. The mobile units are handed off from one communications channel to another by the multi-channel controller as channel loading conditions exceed a predetermined limit. Mobile units change tower sites as the geographic coverage of a tower site changes. Mobile units determine distance to a tower site by computing distance to a tower site by using GPS position information of the mobile unit and the known locations of the tower sites to compute signal strength.








 
 
  Recently Added Patents
Dynamically updating privacy settings in a social network
Semiconductor memory device and method for driving the same
Integrated circuit packaging system with an encapsulation and method of manufacture thereof
Accordion bioreactor
Boundary acoustic wave device
Intelligent and automated code deployment
Semiconductor device
  Randomly Featured Patents
Back applicator
Quick connect shelving assembly system
Skylight and/or chimney water diversion device
Auger tooth locking mechanism
Method of controlling the critical dimension of structures formed on a substrate
Oscillator circuit with switchable feedback
Methods of expressing proteins with disulfide bridges
Microscope
Apparatus for providing audio related signals for audio loops and associated methods
Temperature control method with simultaneous heating and cooling near the set-point