Patent ID: 7161991
Filing Date: 2007-01-09
Classification: H04L

Abstract:
1. A trellis coded modulation transmitter encoder for a communication system comprising: a first serial-to-parallel converter converting an input signal into a first parallel signal; a swap controller electrically coupled to said first serial-to-parallel converter and swapping order of information bits in said first parallel signal to generate a parallel interchange signal; a parallel-to-serial converter electrically coupled to said swap controller and converting said parallel interchange signal into a serial interchange signal; a padder electrically coupled to said parallel-to-serial converter and padding said serial interchange signal with redundant bits to generate a padded interchange signal; a second serial-to-parallel converter electrically coupled to said padder and converting said padded interchange signal into a convolutional encoder input signal; a convolutional encoder electrically coupled to said second serial-to-parallel converter and coding said convolutional encoder input signal to generate a convolutional encoder output signal; and a signal set mapper electrically coupled to said convolutional encoder and mapping said convolutional encoder output signal to generate a modulated signal.