Patent ID: 7443173
Filing Date: 2008-10-28
Classification: H04B

Abstract:
1. An apparatus comprising: a radio frequency (RF) noise cancellation system to create an inverse version of platform noise sensed by a radio subsystem and to add the inverse version of the sensed platform noise to a received RF signal to remove platform noise from the received RF signal, the RF noise cancellation system comprising a weighting/summing module to recreate the platform noise sensed by the radio subsystem and to generate a noise mitigating signal inverse to the recreated platform noise, the recreated platform noise having arbitrary amplitude and phase, the weighting/summing module to variably weight and sum phase shifted noise signals corresponding to the platform noise sensed by the radio subsystem to determine the arbitrary amplitude and phase and a noise sensing module to sense platform noise observed by the radio subsystem and to generate phase shifted noise signals corresponding to platform noise sensed by the noise sensing module, the noise sensing module comprising an antenna array having a plurality of antenna segments separated by a predetermined phase shift.