The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1992
Filed:
Mar. 25, 1988
Hajime Enomoto, Funabashi, JP;
Ming-Kou Chou, Taipei Hsien, TW;
Fujitsu Limited, Kawasaki, JP;
Abstract
An image information code processing system in this invention compresses and encodes a 2-valued image information in a facsimile, etc. For example, an image is expressed by a set of component patterns using bit patterns of divided 4.times.4 bit rectangular blocks, and a codeword train of matched codewords of the component patterns are determined as a block code. In this system, using a four times expanded block process, one block code of the expanded block is determined, then the system expands to determine a partial pattern of three other blocks. A division mark located between the codewords of a codeword train can be abbreviated where a special condition exists between adjacent codewords. Further shortening can be obtained by coding wherein a prediction pattern is obtained and in which only a portion of a real pattern is different from the prediction pattern is encoded. As a result, the 2-valued image information is compressed and the 2-valued image information can be transmitted and processed with a higher efficiency.