Patent ID: 6335766
Filing Date: 2002-01-01
Classification: H01Q,H03L,H03M,H04L,H04N

Abstract:
A system for transmitting an RF signal comprising;(a) means for receiving a data signal containing encoded audio data and video data, said signal including therein a first clock signal; (b) data recovery means for recovering the first clock signal from the data signal; (c) a data randomizer for altering the order of data within the data signal; (d) an encoder to encode the randomized data signal in accordance with a specified encoding scheme; (e) a trellis encoder to trellis encode the encoded data signal; (f) a pulse shaping means to constrain the trellis encoded data signal within a fixed bandwidth; (g) pilot signal means for adding a pilot signal to the constrained data signal; (h) upconversion means for upconverting the constrained data signal and pilot signal to a channel frequency; and, (i) amplifier means for amplifying the upconverted data signal and pilot signal; and, (j) broadcasting means for transmitting the amplified signals.