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. 26, 2002
Filed:
Aug. 18, 1998
Michio Maruyama, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image processing apparatus which is adapted for image processing for reading/writing a large amount of data from/into an RAM and which has a high processing speed. A DRAM bus to which an SDRAM unit is connected is connected to a CPU bus through a bus driver so that a CPU can read/write data from/into the SDRAM unit directly to perform synchronous input/output processing between the CPU and the SDRAM unit. Thus, high speed data transfer can be performed, and the driving capability of the RAM bus is heightened by the bus driver so that the capacity of the SDRAM unit can be made large. Consequently, data can be transferred to a large capacity of SDRAM which can store a large amount of data necessary for image processing to make it possible to provide a printer which is both high in processing speed and has a high data capacity.