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.

Date of Patent:
Feb. 09, 2016

Filed:

Mar. 06, 2014
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;

Inventors:

Toru Sano, Kawasaki, JP;

Takashi Miyamori, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/14 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 11/141 (2013.01); G06F 11/1048 (2013.01);
Abstract

A processing unit of the embodiments includes an instruction memory that holds a plurality of instructions specified by addresses, and that cannot execute read and write operations concurrently, an error correction circuit that detects and corrects an error in the instruction, a program counter, an instruction buffer that holds the instruction corrected as a corrected instruction, a program counter buffer that holds an address of the instruction where an error has been detected, a selector that selects and outputs any of the output of the error correction circuit and the output of the instruction buffer, and a control unit that controls the read and write of the instruction specified by the address from and into the instruction memory. The control unit writes the corrected instruction in the instruction memory using an address held in the program counter buffer when a predetermined condition is satisfied after the occurrence of the error.


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