Patent ID: 6483847
Filing Date: 2002-11-19
Classification: H04L

Abstract:
A communication system, comprising:a first device comprising a first transmitter configured to transmit a first transmission on a single channel communications path without interruption; a second device comprising a second transmitter configured to conditionally transmit a second transmission on the single channel communications path; a collision detector that is configured to detect a collision when the first transmission from the first device occurs while the second transmitter is transmitting the second transmission; and a controller, operably coupled to the second transmitter and the collision detector, that is configured to terminate the second transmission when the collision is detected; wherein the first device continues the first transmission independent of the collision, wherein data comprising said first transmission are unaffected by said collision and wherein the first transmission includes a first preamble and a first data stream, the first preamble having a first preamble duration that is at least as long as a summation of a transmission propagation delay between the first device and the second device, and a collision detector delay for the second device to detect the collision to assure that said second transmission is terminated before the first data stream is transmitted.