Patent ID: 6532042
Filing Date: 2003-03-11
Classification: H04N

Abstract:
A clock generating device for use in a digital video apparatus for displaying video signals having different input formats which are converted into a predetermined display format, the clock generating device comprising:a first clock generation unit for generating a first clock having a first frequency required for displaying the video signals having the different input formats which are received as digital and analog broadcast signals; a second clock generation unit for generating a second clock having a second frequency required for displaying an analog video signal received from an external device, said analog video signal having a same format as the predetermined display format; a phase locked loop (PLL) unit for selectively receiving the first clock and the second clock corresponding to a format of a currently received video signal, and generating a display clock for performing a display which matches the format of the received video signal; and a display unit for format-converting the received video signal according to the display clock and displaying the format-converted result.