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:
Oct. 12, 2004
Filed:
Dec. 07, 2000
Mitsuhiro Miyashita, Nishinomiya, JP;
Masakazu Nishino, Kashiwara, JP;
Yuji Fujiwara, Nishinomiya, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
When recording/reproducing a digital video signal having 1080 effective lines, an MPEG stream can be extracted on the reproducing side with a simple structure and without causing serious deterioration of the image quality, and without wastefully consuming the capacity of the recording medium. To achieve this object, a macro block assembling circuit (semi-MPEG) in the compression circuit assembles macro blocks having 16 lines and macro blocks having 8 lines from the digital video signal. A DCT circuit (MPEG) applies field DCT or frame DCT defined by the MPEG standard to the macro blocks with 16 lines and applies only the frame DCT defined by the MPEG standard to the macro blocks with 8 lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile