Patent ID: 7813417
Filing Date: 2010-10-12
Classification: H04B,H04M

Abstract:
1. A high speed communication transceiver for use as one of a plurality of high speed communication transceivers connected to a transmission line, the transmission line having a normal impedance, the high speed communication transceiver comprising: a transmission line interface selectively coupled to the transmission line; a first receiver connected to the transmission line interface; a second receiver selectively coupled to the transmission line; a transmitter connected to the transmission line interface, the transmitter having an impedance substantially equal to the normal line impedance; and an analog front end alternatively coupled to the first and second receivers, and wherein the high speed communication transceiver presents a high impedance to the transmission line with respect to the normal impedance of the transmission line and the second receiver is coupled to the transmission line and the analog front end when the transmission line interface is not coupled to the transmission line, wherein the high speed communication transceiver presents an impedance to the transmission line substantially equal to the normal impedance of the transmission line and the second receiver is not connected to the transmission line or analog front end when the transmission line interface is coupled to the transmission line and the analog front end is instead coupled to the first receiver.