Patent Number: 6,297,797

Title: Computer system and closed caption display method

Abstract: When a digitally compressed and encoded video data stream contains linedata, a line data detection circuit in a DVD decoder detects the presenceof that line data, and informs a CPU of it using an interrupt signal. Whenthe CPU receives the line data from a data register in the DVD decoder, itconverts it into character information and writes the information in animage memory, or converts the line data into an on-screen display commandfor controlling the OSD function of the DVD decoder and issues thatcommand.

Inventors: Takeuchi; Yoshihiko (Tokyo, JP), Ishibashi; Yasuhiro (Tokyo, JP)


International Classification:

Expiration Date: 10/02/2013