Method and apparatus for processing signals

摘要

An integrated circuit device for processing a signal includes: a digital television (DTV) demodulator which receives and demodulates a modulated DTV signal, and outputs a demodulated DTV signal; an analog TV demodulator which receives and demodulates a modulated analog TV signal, and outputs a demodulated first analog TV signal; and a multiplexer which receives the demodulated DTV signal from the DTV demodulator and the demodulated first analog TV signal from the analog TV demodulator, and selectively outputs one of the demodulated DTV signal and the demodulated first analog TV signal.

主权项

1. An image processing apparatus comprising: an integrated circuit device for processing a signal, the first integrated circuit device comprising:
a digital television (DTV) demodulator which demodulates a modulated DTV signal, and outputs a demodulated DTV signal; an analog TV demodulator which demodulates a modulated analog television TV signal, and outputs a demodulated first analog TV signal; and a multiplexer which receives the demodulated DTV signal from the DTV demodulator and the demodulated first analog TV signal from the analog TV demodulator, and selectively outputs one of the demodulated DTV signal and the demodulated first analog TV signal to a second integrated circuit device, wherein the multiplexer selects one of the demodulated DTV signal and the demodulated first analog TV signal in response to a control signal which is externally input from the second integrated circuit device; and the second integrated circuit for processing a signal, the second integrated circuit device comprising: digital television (DTV) signal processing unit which performs a first signal process on the demodulated DTV signal; a first analog television (TV) signal processing unit which performs a second signal process on the demodulated first analog TV signal; a demultiplexer which receives the demodulated DTV signal or the demodulated first analog TV signal from the multiplexer of the first integrated circuit device, and selectively outputs the received signal to one of the DTV signal processing unit and the first analog TV signal processing unit; and a controller which outputs a first control signal to control the demultiplexer to selectively output the demodulated DTV signal or the demodulated first analog TV signal, and outputs a second control signal to the first integrated circuit device to control the first integrated circuit device to selectively output one of the demodulated DTV signal and the demodulated first analog TV signal.