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:
Nov. 23, 1999
Filed:
Jul. 10, 1997
Hideyuki Terane, Hyogo, JP;
Mitsubishi Electric Semiconductor Software Corporation, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
It is an object of the present invention to simultaneously perform input or output of picture signals for a plurality of components. An image data input interface (310) is capable of input of picture signals (Pm) of three components at its maximum. For example, when picture signals (Pm) of three components are inputted, a clock divider (410) supplies a 1/3 divided signal of a clock signal (CLK) to the image data input interface (310) on the basis of a selection signal (SEL). In the image date input interface (310), the picture signals (Pm) of three components are simultaneously inputted in synchronization with the 1/3 divided signal and they are sent out to a discrete cosine transform unit (4) in synchronization with the clock signal (CLK). The component to which the sent picture signals (Pxy) belong sequentially changes for every 8.times.8 picture elements. It has the effect of simultaneously performing input or output of picture signals for a plurality of components while matching with operation of a coding device unit is maintained.