Patent ID: 6882870
Filing Date: 2005-04-19
Classification: G02C,H04B,H04M,H04W

Abstract:
1. A radio telephone for use in close proximity to a user comprising: a transceiver for communicating with a radio telephone network over a network assigned channel; an antenna connected to the transceiver for receiving and transmitting signals from and to said radio telephone network; a controller connected to said transceiver to control the communications and for processing the information being transmitted or received in said communication by said radio telephone; a user interface connected to said controller constructed to allow said user to receive and send audio and data information via communication with said radio telephone network; a local communication module connected to said controller for generating a first bidirectional local wireless communication link to allow the transmission and reception of communications processed by said controller, said local communications link using time division multiple access with frequency hopping or code controlled multiple access with individual pseudorandom binary sequencing to avoid interference with said radio telephone network communication; and a first remote unit adapted to be supported on the person of said user, said remote unit having a transceiver and a controller for receiving and sending information over said first local communication link, said remote unit constructed to allow said user to receive and send information over said local communication link to said radio telephone network through said radio telephone.