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, 2022
Filed:
Feb. 20, 2020
Olympus Corporation, Hachioji, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
A memory access device includes: a data processor configured to output an access request requesting access to a memory connected to a data bus, perform a data processing on data in the accessed memory, and provide notification of a progress status of the data processing; a priority switching control part configured to determine an urgency of the data processing by the data processor according to the progress status of the data processing notified from the data processor, and output a priority switching signal notifying switching of a priority of the data processor; and a bus arbiter connected to the data bus, configured to change the priority of the data processor according to the priority switching signal to arbitrate the access request output from the data processor, and control access to the memory according to the access request that has been arbitrated.