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:
Jul. 17, 2001
Filed:
Dec. 22, 1998
Sung-Ryul Cho, Seoul, KR;
Daewoo Electronics Co., Ltd., Seoul, KR;
Abstract
An apparatus encodes a binary shape signal by using a zig-zag scanning technique. The apparatus zig-zag scans the binary shape signal to thereby output each of the pixels in the binary shape signal sequentially in order of scanning. Then, a context corresponding to each of the pixels is selected from pixels processed prior to said each of the pixels by taking the scanning order into account. By using the context of said each of the pixels, the apparatus ciphers a context number corresponding to said each of the pixels and detects its probability based on the corresponding context number. Through the above procedure, if the probabilities for all of the pixels in the binary shape signal are detected, the apparatus arithmetically encodes the binary shape signal by using the detected probabilities to thereby produce the encoded binary shape signal.