Patent ID: 6560469
Filing Date: 2003-05-06
Classification: H04M

Abstract:
A microphone/speaker-contained wireless remote control system for an Internet device comprising:a remote controller including a microphone, a speaker, a codec for converting an analog audio signal from the microphone into a digital signal or converting a digital signal from a second vocoder into an analog signal and outputting the converted analog signal to the speaker, said second vocoder voice-compressing the digital signal from said codec or decoding a compressed signal from a second amplifier, said second amplifier amplifying an output signal from said second vocoder to a second predetermined level, a second modulation/demodulation circuit for converting the signal amplified by said second amplifier into an audio radio frequency signal, a second transmitting/receiving antenna for transmitting and receiving the audio radio frequency signals to/from a first transmitting/receiving antenna, a power supply controller for controlling charging/discharging of a battery, a remote control key box having a plurality of key buttons and a track ball for generating electrical signals in response to user's operations, a second microcomputer for converting an output signal from said remote control key box into a digital code, wherein the microphone and the speaker of the remote controller are each selectively activated by different key buttons of the plurality of key buttons.