Patent application number | Description | Published |
20110165872 | MOBILE COMMUNICATION TERMINAL, IC CARD, MOBILE COMMUNICATION SYSTEM, PROGRAM, AND COMMUNICATION CHARGE NOTIFICATION METHOD - The present invention provides a mobile communication terminal, an IC card, a mobile communication system, a program, and a communication charge notification method capable of easily indicating roaming communication charges and preventing a user from being unexpectedly charged for communication. A mobile phone | 07-07-2011 |
20140082408 | FAULT TOLERANT SYSTEM AND METHOD FOR PERFORMING FAULT TOLERANT - A primary virtual machine is formed on a primary machine in which a primary hypervisor runs, and inputs virtual interrupt based on an external interrupt from the primary hypervisor to a primary guest OS. A secondary virtual machine is formed on a secondary machine in which a secondary hypervisor runs, and inputs the virtual interrupt to a secondary guest OS on the basis of timing information on the virtual interrupt transmitted from the primary virtual machine. When inputting the virtual interrupt to the primary guest OS, the primary virtual machine suspends the primary guest OS, and determines whether the suspended position is in a critical section. If the suspended position is not in the critical section, the primary virtual machine inputs the virtual interrupt at the suspended position. If the suspended position is in the critical section, the primary virtual machine changes the suspended position, and again performs the determination. | 03-20-2014 |
20140082617 | FAULT TOLERANT SYSTEM AND METHOD FOR PERFORMING FAULT TOLERANT - A fault tolerant system includes a primary virtual machine that is formed on a primary machine in which a primary hypervisor runs, and is adapted to input virtual interrupt based on an external interrupt from the primary hypervisor to a primary guest OS, and a secondary virtual machine that is formed on a secondary machine in which a secondary hypervisor runs, and is adapted to input the virtual interrupt to a secondary guest OS on the basis of timing information on the virtual interrupt transmitted from the primary virtual machine. The primary virtual machine is adapted to collect operation performance information from the secondary virtual machine, and to configure an operation performance of the primary virtual machine and an operation performance of the secondary virtual machine so that the operation performance of the primary virtual machine becomes equal to the operation performance of the secondary virtual machine. | 03-20-2014 |
20140082618 | FAULT TOLERANT SYSTEM AND METHOD FOR PERFORMING FAULT TOLERANT - A fault tolerant system includes a primary virtual machine formed on a primary machine in which a primary hypervisor runs, and configured to input virtual interrupt based on an external interrupt from the primary hypervisor to a primary guest OS, and a secondary virtual machine formed on a secondary machine in which a secondary hypervisor runs, and configured to input virtual interrupt to a secondary guest OS on the basis of timing information on the virtual interrupt transmitted from the primary virtual machine. The primary virtual machine is configured to determine whether the virtual interrupt is generated, or not, upon receiving the external interrupt from the primary hypervisor, and only if it is determined that the virtual interrupt is generated, the primary virtual machine is configured to input the virtual interrupt to the primary guest OS, and to transmit timing information on the virtual interrupt to the secondary virtual machine. | 03-20-2014 |
20140082619 | FAULT TOLERANT SYSTEM AND METHOD FOR PERFORMING FAULT TOLERANT - A fault tolerant system includes a primary virtual machine that is formed on a primary machine in which a primary hypervisor runs, and is configured to input virtual interrupt based on an external interrupt from the primary hypervisor to a primary guest OS, and a secondary virtual machine that is formed on a secondary machine in which a secondary hypervisor runs, and is configured to input the virtual interrupt to a secondary guest OS on the basis of timing information on the virtual interrupt transmitted from the primary virtual machine. The primary virtual machine is configured to transmit the timing information on the virtual interrupt including the number of branch instructions executed by the primary guest OS before inputting the virtual interrupt, and including an execution suspension position when inputting the virtual interrupt to the secondary virtual machine. | 03-20-2014 |
20140379134 | PROCESS CONTROL APPARATUS AND SYSTEM AND UPDATING METHOD THEREFOR - A process control apparatus includes a virtualization unit configured to operate in hardware, first and second operating systems configured to run in the virtualization unit, an application configured to run in the first operating system, and configured to control an industrial process by communicating with field devices, a recording unit configured to record a first information required for restoration of the application and a second information passed between the first operating system and the application, and a restoration unit configured to use a history of the second information to set the second operating system to the same state as the internal state of the first operating system, and configured to use the first information to restore the application running in the first operating system into the second operating system. | 12-25-2014 |
20150032229 | PROCESS CONTROL APPARATUS AND SYSTEM, AND METHOD FOR DETERMINING NORMALITY THEREOF - A process control apparatus includes a hypervisor, a controller configured to run on the hypervisor and to communicate with a field apparatus to control an industrial process, an operation model definer configured to define an operation model, which is information establishing operation specifications derived from specifications of the controller, a trace information collector configured to collect traces of interactive motions between hardware and the controller, and a normality determiner configured to compare the operation model defined by the operation model definer with the information collected by the trace information collector and to determine the normality of the operation of the process control apparatus. | 01-29-2015 |
20150205280 | PROCESS CONTROLLER AND UPDATING METHOD THEREOF - A process controller includes a first virtualizer to run in a first process controller and a first operating system to run on the first virtualizer, the first operating system transiting from a first state to a second state when control of an industrial process is started. The first operating system transits from the second state to the first state when control of the industrial process for one period ends, the first state being waiting for starting the control of the industrial process, and the second state being when the industrial process is performed. An application runs on the first operating system and performs control of the industrial process at a constant period. A saving unit saves information representing an inner state of the application when the first operating system is in the first state, the information restoring the application in a second process controller different from the first process controller. | 07-23-2015 |