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:
Jan. 01, 2008
Filed:
Jul. 29, 2003
Junichi Sakamoto, Kanagawa, JP;
Hideki Takeuchi, Kanagawa, JP;
Junichi Fujita, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
A clipping device for reducing the number of processing cycles, and simplifying the circuit, while increasing the speed of the processing. The clipping device has a clip code generation circuit for generating clip codes corresponding to results of a comparison of vertex coordinates of a primitive and a judgment reference value of a multi-dimensional region and a negative value of the judgment reference value for the vertices of the primitive. The clipping device also includes: a current clip register for shifting the clip codes; clip registers able to replace the clip codes in accordance with a control signal; a control circuit outputting a control signal so as to replace the clip codes between clip registers when receiving a replacement instruction; and a logic circuit for performing a logic operation with respect to all bit data set in the clip registers. The device can also set a clip flag indicating whether or not the vertex to be judged is inside or outside a multi-dimensional region of an object to be drawn.