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:
Apr. 26, 2005
Filed:
Jun. 05, 2002
Atsushi Yamazaki, Tokyo, JP;
Atsushi Yamazaki, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A memory control circuit is connected between a CPU and a memory. The memory control circuit comprises an access control circuit for controlling reading/writing access speed between the CPU and the memory. The memory control circuit further comprises a speed measurement circuit for writing predetermined data into a given address of the memory at a first speed when a speed measurement mode is specified. Thereafter the speed measurement circuit reads out the data from the given address of the memory at a second speed hat is different from the first speed. Finally, the speed measurement circuit measures an optimum speed ensuring a normal reading operation.