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:
May. 30, 2023
Filed:
Feb. 03, 2021
Yokogawa Electric Corporation, Tokyo, JP;
Yoshitaka Yoshida, Musashino, JP;
YOKOGAWA ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A fault tolerant system includes a primary virtual machine and a secondary virtual machine. The primary virtual machine includes a synchronizing information generator and a first interrupt blocker. The synchronizing information generator executes bytecode and outputs synchronizing information based on information related to the executed bytecode. The first interrupt blocker blocks an interrupt inputted from an external location. The secondary virtual machine includes a synchronous execution unit that executes the bytecode based on the synchronizing information and a second interrupt blocker that blocks the interrupt. When the interrupt is acquired, the synchronizing information generator executes the bytecode based on the interrupt. The first interrupt blocker outputs the interrupt to the synchronizing information generator when the interrupt is inputted during execution of an instruction, included in the bytecode, to accept the interrupt.