1995-02-08
1995-08-29
Beausoliel, Jr., Robert W.
Excavating
371 371, 348466, G06F 1110
Patent
active
054467446
ABSTRACT:
When forming a data block which includes both an image code obtained by carrying out variable length coding for each of plural regions resulting from dividing each picture provided by an image signal, and added information associated therewith, boundary information indicative of a position, in the data block, of the boundary between the image codes in two adjacent regions of the divided regions is added to the data block. There are also formed in the data block a first error detection or correction code to make up a code word which includes the boundary code, but does not include the image code, and a second error detection or correction code to make up a code word which includes both the image code and the boundary code. Alternatively, in the block which includes main information and added information associated with the main information in time series there are formed a first error detection or correction code to make up a code word which does not include the main information, but includes both the added information and a first check bit, and a second error detection or correction code to make up a code word which does not include the first check bit, but includes the added information, the main information and a second check bit.
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Nagasawa Kenichi
Shikakura Akihiro
Beausoliel, Jr. Robert W.
Canon Kabushiki Kaisha
De'cady Albert
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