Patent ID: 6381288
Filing Date: 2002-04-30
Classification: H04L

Abstract:
A receiver for receiving and recovering data from a differential phase shifted keyed signal, said receiver comprising:an analog-to-digital converter having first and second inputs, and first and second outputs, said analog-to-digital converter for receiving an analog in-phase (I) signal at said first input, and for receiving an analog quadrature-phase (Q) signal at said second input, said analog-to-digital converter further for outputting at said first output digital in-phase (I) data, and for outputting at said second output digital quadrature-phase (Q) data, wherein the I data is represented by two bits per sample; a first coder connected to said first output of said analog-to-digital, said first coder for receiving the digital I data from said analog-to-digital converter, and said first coder further for outputting corresponding coded I data as a function of a first I data portion and a subsequent second I data portion from the digital I data, in accordance with a table 00011110001110101000000100011010100001000110110000010011101010100100011010101000a second coder connected to said second output of said analog-to-digital converter, said second coder for receiving the digital Q data from said analog-to-digital converter, and said second coder further for outputting corresponding coded Q data as a function of a first Q data portion and a subsequent second Q data portion from the digital Q data, respectively; and a summation device connected to each of said first coder and said second coder, said summation device for receiving the coded I data from said first coder and for receiving the coded Q data from said second coder, said summation device further for generating a single corresponding decoded data value by combining the coded I data and the coded Q data.