Patent ID: 7394861
Filing Date: 2008-07-01
Classification: H04B

Abstract:
1. An apparatus for generating signal gain coefficients for a single-input-multiple-output/multiple-input-single-output (SIMO/MISO) transceiver for providing packet data communication with a single-input-single-output (SISO) transceiver, comprising: a plurality of signal terminals for conveying a plurality of input signals representing first Cartesian coordinates X, Y for a plurality of receiver channel gain coefficients corresponding to relative signal strengths of respective ones of a plurality of incoming radio frequency (RF) signals received via a plurality of spatially diverse antenna elements and corresponding to a wireless data signal originating from a particular SISO RF transceiver; input coordinate rotation digital computation (CORDIC) circuitry coupled to said plurality of signal terminals and responsive to said plurality of input signals by providing a plurality of input magnitude signals and a plurality of input phase signals representing pluralities of magnitudes and phases, respectively, of polar coordinates for said plurality of receiver channel gain coefficients; and normalization circuitry coupled to said input CORDIC circuitry and responsive to at least a portion of said plurality of input magnitude signals by providing a plurality of normalized signals representing a plurality of normalized magnitudes of said polar coordinates for said plurality of receiver channel gain coefficients.