Abstract: A power transmission apparatus includes a controller that controls a power transmitter that performs wireless power transmission. The controller is configured to: cause the processor to: cause the power transmitter to emit a first power transmission beam for which a first power is set; acquire feedback information on a result of reception of the first power transmission beam in a power reception apparatus; identify a power receiving capability in the power reception apparatus; and determine, with reference to the power receiving capability and the reception result, a second power which is usable in wireless power supply for the power reception apparatus and which is larger than the first power. The power receiving capability includes a maximum value of an input power range of the power reception apparatus. The wireless power transmission uses an electromagnetic wave having a frequency equal to or higher than that of a microwave.

Abstract: A redundant system (1) includes information processing apparatuses (10), each of which includes a communication interface (11) that communicates with another information processing apparatus (10) and a controller (13) that manages virtual environments capable of running on the respective information processing apparatus (10). The communication interface (11) transmits first equalization information associated with a first environment, among the virtual environments, in an operating state to the other information processing apparatus (10). The communication interface (11) receives second equalization information associated with a second environment in the operating state on the other information processing apparatus (10) from the other information processing apparatus (10). The controller (13) equalizes the second environment onto the respective information processing apparatus (10) based on the second equalization information received by the communication interface (11).

Abstract: A redundant system (1) includes information processing apparatuses (10), each of which includes a communication interface (11) that communicates with another information processing apparatus (10) and a controller (13) that manages virtual environments capable of running on the respective information processing apparatus (10). The communication interface (11) transmits first equalization information associated with a first environment, among the virtual environments, in an operating state to the other information processing apparatus (10). The communication interface (11) receives second equalization information associated with a second environment in the operating state on the other information processing apparatus (10) from the other information processing apparatus (10). The controller (13) equalizes the second environment onto the respective information processing apparatus (10) based on the second equalization information received by the communication interface (11).

Abstract: Availability against hardware failure and availability against maintenance are implemented without using dedicated systems. A system is provided, including: a first host computer to execute a first virtual machine for running a first application; and a second host computer to execute a second virtual machine for running a second application, wherein in a redundant operation mode, the second host computer mirrors an executable image of the first virtual machine to an executable image of the second virtual machine while stopping the execution of the second virtual machine, and in a multi-operation mode, the second host computer mirrors an internal state of the first application to an internal state of the second application while executing the second virtual machine in parallel with the first virtual machine.

Abstract: Unauthorized use of software can be prevented while ensuring high availability of a system. A computer system according to the present disclosure includes a plurality of computer apparatuses. When an identifier of a first computer apparatus among the computer apparatuses is included in a license file that includes identifiers of computer apparatuses to which a license for software to perform coordinated operations is granted, the first computer apparatus permits the coordinated operations, using the software, by a second computer apparatus other than the first computer apparatus among the computer apparatuses that perform the coordinated operations, even if an identifier of the second computer apparatus is not included in the license file.

Abstract: A redundant system (1) includes information processing apparatuses (10), each of which includes a communication interface (11) that communicates with another information processing apparatus (10) and a controller (13) that manages virtual environments capable of running on the respective information processing apparatus (10). The communication interface (11) transmits first equalization information associated with a first environment, among the virtual environments, in an operating state to the other information processing apparatus (10). The communication interface (11) receives second equalization information associated with a second environment in the operating state on the other information processing apparatus (10) from the other information processing apparatus (10). The controller (13) equalizes the second environment onto the respective information processing apparatus (10) based on the second equalization information received by the communication interface (11).

Abstract: Availability against hardware failure and availability against maintenance are implemented without using dedicated systems. A system is provided, including: a first host computer to execute a first virtual machine for running a first application; and a second host computer to execute a second virtual machine for running a second application, wherein in a redundant operation mode, the second host computer mirrors an executable image of the first virtual machine to an executable image of the second virtual machine while stopping the execution of the second virtual machine, and in a multi-operation mode, the second host computer mirrors an internal state of the first application to an internal state of the second application while executing the second virtual machine in parallel with the first virtual machine.