Patent ID: 7356343
Filing Date: 2008-04-08
Classification: H04L,H04M,H04N,H04W

Abstract:
1. Emergency location communication system comprising: a receiver and demodulator for reception and demodulation of location finder signals to demodulated location finder baseband signals; a first baseband processor for receiving first bit rate input signals for generating processed Orthogonal Frequency Division Multiplex (OFDM) baseband signals; a second baseband processor for receiving second bit rate input signals, wherein the second bit rate is different from the first bit rate, connecting said input signals to a cross-correlator and filter and providing processed baseband cross-correlated in-phase and quadrature-phase filtered signals; a third baseband processor for processing signals comprising emergency communication connection or emergency signals or information or emergency phone numbers; a fourth baseband processor for processing demodulated location finder baseband signals with the third processor processed signals and the processed second bit rate cross-correlated in-phase and quadrature-phase filtered baseband signals or with the first bit rate processed OFDM baseband signals; a selector for selecting the processed baseband cross-correlated in-phase and quadrature-phase filtered baseband signals or the fourth processor processed signals and connecting the selected signals to a signal modulator; and a signal modulator for modulating the selected signals and for providing the modulated signals to a signal transmitter for signal transmission.