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. 01, 2001
Filed:
May. 01, 1998
Pedro A. Assuncao, Leiria, PT;
Boom Corporation, Fremont, CA (US);
Abstract
An apparatus for transcoding an input elementary stream is provided. The apparatus includes a variety of components performing functions such as receiving the input elementary stream. A component for separating an input elementary stream into transform coefficients and their associated motion vectors is included. The apparatus also includes components for dequantizing the transform coefficients to form block transform coefficients, and determining a compensation stream using a feedback path. The apparatus combines the compensation stream from the feedback path with the block transform coefficients to form a corrected stream. The correlated stream is reduced to form an output stream having a characteristic data rate different from the characteristic data rate of the input stream. The combination of these components can provide a resultant digital video signal from the input stream.