Apparatus and method for decoding an information page having...

Details Apparatus and method for decoding an information page having... Apparatus and method for decoding an information page having...

H - Electricity

04

N

H04N 5/445 (2006.01) H04N 5/92 (2006.01) H04N 7/088 (2006.01) H04N 9/82 (2006.01) H04N 5/85 (2006.01) H04N 9/804 (2006.01) H04N 9/877 (2006.01)

Patent

CA 2179797

Apparatus and method for decoding pages of subtitle data supplied as information pages which include respective headers and page data (i.e., subtitle character data) which are superimposed on a video signal. Each received information page is stored in a ring-type memory as a respective page therein, and the header of a page stored in memory is detected prior to being pre-read therefrom. The detected header is read from memory a second time and the page data is read from memory at a time in accordance with certain data included in the pre-read header. The page data is decoded and supplied as an output to be combined with the video signal.

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