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. 09, 1998
Filed:
Oct. 31, 1996
Naoyuki Fukuda, Kita-Katsuragi-gun, JP;
Kenji Kawahara, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A video coding device has an image motion detector, an inter-frame differencer, a discrete cosine transforming unit, and a variable length coder mounted on a single LSI. The video coding device further includes a first memory for storing a video signal block composed of a luminance signal and two color difference signals of the current frame, a second memory for storing a searching area for the luminance signal block of the previous frame, and a third memory for storing blocks of the luminance signal and two color difference signals corresponding to the detected motion vector. The video coding device operates to concurrently execute a process for detecting motion of an image from the luminance signals stored in the first and the second memories using the motion detector, a process for coding a video signal from the luminance signal and two color difference signals stored in the first and the third memories using an inter-frame predictor and a coder, and a process for outputting the coded signal at each of the serial macro blocks composing the input video signal.