Patent ID: 8319858
Filing Date: 2012-11-27
Classification: H04N,H04R

Abstract:
1. An electronic apparatus, comprising: a video camera, adjusting a focal length according to a zoom-in/out control signal and capturing an image of at least one target object according to the focal length to generate a raw video signal; a video processing module, coupled to the video camera, generating the zoom-in/out control signal to adjust the focal length of the video camera; an array microphone, comprising a plurality of microphones converting sounds of the target object into a plurality of raw audio signals; and an audio processing module, coupled to the array microphone, adjusting a beamwidth for beamforming according to the focus length indicated by the zoom-in/out control signal, and performing a beamforming process according to the beamwidth on the raw audio signals to generate a first audio signal comprising mainly voice components of the target object; and wherein the audio processing module comprises: a lookup table, generating a plurality of beamforming parameter values according to the zoom-in/out control signal for adjusting the beamwidth; and a beamforming module, coupled to the lookup table, performing the beamforming process according to the beamforming parameter values to generate the first audio signal.