Abstract: A method and an apparatus of displaying component video signals. Firstly, a component video signal is received, and a vertical synchronous signal and a horizontal synchronous signal are separated from the component video signal. Thereafter, the format of the component video signal is determined by analyzing the vertical synchronous signal and the horizontal synchronous signal, and a video processing route corresponding to the format of the component video signal is chosen to generate visual output from the component video signal. Thus the visual output is displayed.

Abstract: A projection display apparatus and method of preventing from inadvertently inputting command thereof are provided for preventing users from inadvertently inputting the command to shut down a discharge lamp of the projection display apparatus. The method comprises the following steps: preparing to enter a determination mode when a projection display apparatus receives a activation signal; displaying the predetermined delay time on a screen of the projection display apparatus and down counting such delay time; determining whether a confirmation signal is received during the delay time; and shutting down the discharge lamp when the project display apparatus receives the confirmation signal. If the projection display apparatus fails to receive the confirmation signal or receive other signals during the delay time, the projection display apparatus will return to the normal display mode.

Abstract: A method for searching television channel is provided. An initial frequency and a frequency search interval are set. Thereafter, using the initial frequency as the starting point, television signals are scanned to find any television channel within a designated frequency bandwidth. The channel ID is resolved from the channel frequency based on a specific broadcasting system on each detecting of the channel signals. The channel frequency and frequency ID of any television channel thus found are also stored. In this invention, the television channel is searched by frequency instead of a channel table as in a conventional method.

Abstract: A method and an apparatus of displaying component video signals. Firstly, a component video signal is received, and a vertical synchronous signal and a horizontal synchronous signal are separated from the component video signal. Thereafter, the format of the component video signal is determined by analyzing the vertical synchronous signal and the horizontal synchronous signal, and a video processing route corresponding to the format of the component video signal is chosen to generate visual output from the component video signal. Thus the visual output is displayed.