Patent ID: 7941101
Filing Date: 2011-05-10
Classification: H04B

Abstract:
1. An apparatus for removing interference noise in a personal communication terminal, comprising: a communication unit transmitting/receiving a first radio frequency signal via a first antenna; a broadcasting receiver unit receiving a second radio frequency signal via a second antenna and detecting a signal error rate from the second radio frequency signal; a signal coupler extracting the first radio frequency signal in low power from the first radio frequency signal outputted from the communication unit; a phase inversion unit phase-inverting an interference noise signal of the first radio frequency signal in low power extracted from the signal coupler; a memory unit including an adjustment table having up-to-date adjustment parameters to be set for removing the interference noise signal of the first radio frequency signal; a control unit, upon start of operation, setting the adjustment parameters of the memory unit to the phase inversion unit, changing the adjustment parameters based on the signal error rate from the broadcasting receiver unit, and re-setting the changed adjustment parameters to the phase inversion unit; and a signal combiner combining the inverted interference noise signal, from the phase inversion unit, with the second radio frequency signal, from the second antenna, thereby removing the interference noise signal of the first radio frequency signal included in the second radio frequency signal.