Akiro
Akiro Kobayashi, Kusatsu-Shi JP
Patent application number | Description | Published |
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20120239201 | CPU UNIT OF PLC, SYSTEM PROGRAM FOR PLC, AND RECORDING MEDIUM STORING SYSTEM PROGRAM FOR PLC - A system includes a first execution control instruction to start execution of a first control program every first execution cycle of the same period as a control cycle period and a second execution control instruction to start execution of a second control program every second execution cycle whose period is an integral multiple of at least twice the control cycle period. The second execution control instruction includes an instruction to start, in a control cycle in which a second execution cycle starts, execution of the second control program after the end of execution of the first control program, and if the second control program is not completed before the end of the control cycle, to start execution of an unexecuted part of the second control program after the end of execution of the first control program in the next control cycle. | 09-20-2012 |
20120240132 | CONTROL APPARATUS, SYSTEM PROGRAM, AND RECORDING MEDIUM - A control apparatus capable of updating a user program while processing is being performed in a multitasking manner is provided. A processor includes a memory that stores a user program containing a program organization unit as well as a central processing unit executing a task containing the user program and also updating the program organization unit stored in the memory. The central processing unit is configured to execute a plurality of tasks concurrently and to execute each task with a period corresponding to the task. Moreover, the central processing unit is configured to update the program organization unit stored in the memory during the period of time from when a plurality of tasks to be executed have been finished until when the plurality of tasks are executed again. | 09-20-2012 |
Akiro Kobayashi, Shiga JP
Patent application number | Description | Published |
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20140088735 | CONTROL DEVICE AND SYSTEM PROGRAM, AND RECORDING MEDIUM - A control device capable of appropriately switching operating modes when multitasking is being performed is provided. A CPU unit is provided with a task executing unit for executing a plurality of tasks in parallel, and for executing each task in cycles based on each task; and a mode switching unit for switching operating modes. The task executing unit is configured in such a manner that when in operation mode, a user program is executed for each task, and when in program mode, a user program is not executed for each task. The mode switching unit is configured in such a manner that the operating mode is switched when a plurality of tasks being executed by the task executing unit are synchronized | 03-27-2014 |
Akiro Tanaka, Tokyo JP
Patent application number | Description | Published |
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20140037087 | COMMUNICATION DEVICE AND CRYPTOGRAPHIC KEY CREATION METHOD IN CRYPTOGRAPHIC KEY SHARING SYSTEM - A communication device and a cryptographic key creation method are provided that enable efficient creation of cryptographic keys of which different error rates are required. A communication device ( | 02-06-2014 |