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:
Jun. 05, 2007
Filed:
Mar. 16, 2005
Naofumi Yanagihara, Tokyo, JP;
Nobuaki Izumi, Chiba, JP;
Naofumi Yanagihara, Tokyo, JP;
Nobuaki Izumi, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section, then decoded by a variable-length decoding (VLD) section, inversely quantized by an inverse quantizing (IQ) section, and inversely weighted by an inverse weighting (IW) section. Then, required resolution conversion in the orthogonal transform domain (frequency domain) is carried out on the inversely weighted video signal by a resolution converting section. After that, the video signal having the resolution converted is weighted by a weighting (W) section, then quantized by a quantizing (Q) section, coded by variable-length coding by a variable-length coding (VLC) section, and outputted as a digital signal of a second format (MPEG video signal).