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. 07, 1994
Filed:
Aug. 03, 1990
Applicant:
Inventor:
Kimio Yamamura, Tokyo, JP;
Assignee:
Hudson Soft Co., Ltd., Hokkaido, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395800 ; 36423782 ; 3642372 ; 364247 ; 3642593 ; 364D / ; 395166 ;
Abstract
An apparatus for controlling the access of a video memory comprises a group of registers in which various kinds of control data are set to access a video memory. The group of the registers are set to store data for detecting scanning rasters, incrementing or decrementing an address of the video memory which is accessed, and starting a DMA transfer of image data. Therefore, various kinds of accessing modes can be performed without the necessity of a complicated software.
Yamamura, Kimio. (1994). Apparatus for controlling a scanning type video display to be divided (U.S. Patent No. 5319786). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5319786
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