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:
Aug. 31, 1999
Filed:
Aug. 28, 1997
Jong-Il Kim, Seoul, KR;
Daewoo Electronics Co. Ltd., Seoul, KR;
Abstract
An encoded video signal is decoded to obtain a decoded video signal, wherein the decoded video signal includes a previous and a current frames and is processed an a macroblock-by-macroblock basis, each frame's data containing pixel values, by deriving a set of quantized discrete cosine transform coefficients corresponding to current frame data and converting the set of quantized discrete cosine transform coefficients into a set of discrete cosine transform coefficients. Thereafter, depending on the complexity of the current frame data detected, high frequency components of the set of discrete cosine transform coefficients within a preset region are filtered based on the set of discrete cosine transform coefficients and the complexity of the current frame data, to thereby produce a set of filtered discrete cosine transform coefficients. The set of filtered discrete cosine transform coefficients is transformed into a set of inverse discrete cosine transform data, and the current frame data is generated through the use of motion compensation and provided as the decoded video signal.