Patent ID: 6049651
Filing Date: 2000-04-11
Classification: H03M,H04L,H04N

Abstract:
A receiving apparatus comprising:a channel selector connected to a variable oscillator for changing a frequency of an oscillation signal of said variable oscillator;a mixer connected to said variable oscillator for converting a received signal by using said oscillation signal into a M-value VSB modulation signal, where M is an integer;a demodulator for demodulating said M-value VSB modulation signal to reproduce an encoded signal; anda trellis decoder for trellis decoding said encoded signal to obtain a trellis-decoded signal, whereinsaid received signal is a time division multiplexed signal transmitted by a time division multiplexing, and is demodulated as an 8-value VSB modulation signal in a first mode and is demodulated as an N-value VSB modulation signal in a second mode, where N is an integer less than 8.