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. 20, 1992
Filed:
Oct. 23, 1990
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A jagged-edge killer circuit for a three-dimensional display, comprises a frame buffer for storing data of each pixel on the display screen by a pixel unit; a Z-buffer for storing distance data in a depth direction of a picture by a sub-pixel unit into which the pixel as a storage unit of the frame buffer is subdivided in a predetermined number; a picture data buffer for storing picture data by the sub-pixel unit; an element for comparing the distance data stored in the Z-buffer with new distance data in the depth direction about each new sub-pixel into which new pixel is subdivided in the predetermined number when picture data of said new pixel are written in the picture data buffer; a first element for renewing storage contents of the picture data buffer about only sub-pixel having nearer distance in the depth direction within the sub-pixels subdivided from the new pixel into the predetermined number on the basis of a comparison result of the comparing element; a second element for renewing storage contents of the Z-buffer by the new distance data of the sub-pixels having the predetermined number corresponding to the new pixel; and an element for generating picture data of the pixel unit in the frame buffer by performing an arithmetical mean of the picture data of the sub-pixel unit having the predetermined number in the picture data buffer.