Patent ID: 6137545
Filing Date: 2000-10-24
Classification: H03D,H04B,H04H,H04L,H04N

Abstract:
A method of receiving and processing a wideband digital signal, said wideband digital signal transmitted in accordance with any one of a plurality of various transmission standards including at least first and second transmission standards, said first transmission standard specifying vestigial sideband amplitude modulation according to a multi-level symbol code, and said second transmission standard specifying quadrature amplitude modulation, said method being carried out in a receiver for said wideband digital signal and comprising the steps of:receiving said wideband digital signal at said receiver;determining at said receiver which of respective modulation formats specified for said various transmission standards is employed for transmitting said wideband digital signal, to supply a determination of the transmission standard employed for transmitting said wideband digital signal;demodulating said wideband digital signal according to a demodulation format suitable for demodulating the modulation format determined to be employed for transmitting said wideband digital signal, to produce a demodulated signal; andfurther processing said demodulated signal produced by demodulating said wideband digital signal according to a demodulation format suitable for demodulating the modulation format that is determined at said receiver to be employed for transmitting said wideband digital signal.