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. 21, 2000
Filed:
Feb. 27, 1998
Hayateru Mashima, Hadano, JP;
Mitsuhiro Amari, Atsugi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a printer control apparatus having a two-dimensional address type full dot memory, this full dot memory is constituted by a longitudinal/lateral-direction highspeed memory with a highspeed access operation along an x address direction, an oblique-direction highspeed memory with both access speeds in x address and y address direction, and another longitudinal/lateral-direction highspeed memory with a highspeed access operation along a y address direction. A directivity of a dot pattern is judged by a memory control unit, and this dot pattern is expanded from print data by a data processing unit, and then is written into a full dot memory. Any one of the longitudinal/lateral-direction highspeed memory, the oblique-direction highspeed memory, and the longitudinal/lateral-direction highspeed memory is selected based on the directivity judgment result to expand the dot pattern into the selected memory.