Demodulators inventions 09/09

20090237155 - Generating a phase value for a complex signal: A method of generating a phase value representative of a phase of a complex signal that includes an in-phase component and a quadrature-phase component includes determining a first sign for a first value and a second sign for a second value based on a quadrant occupied by the complex signal.... Agent: Dicke, Billig & Czaja

20090231028 - Two-stage low-complexity max-log bit-level llr calculator and method: A demodulator and demodulation method includes a bit/symbol hard demodulator configured to obtain hard bit or symbol information from a received signal. At least one lookup table is configured to reference coefficients for computation of log-likelihood ratios (LLRs) from the hard bit or symbol information. A log-likelihood ratio calculation module... Agent: Nec Laboratories America, Inc.