Abstract:
Installation (wired connection) of a function expansion device in a portable information terminal is detected. This detection causes a connection authentication code to be generated. The generated connection authentication code is stored in each of the portable information terminal and the function expansion device via a wire circuit so as to be used for authentication for wireless connection.
Abstract:
According to this invention, a wireless communication equipment which communicates with a plurality of nodes supplies an access control technique for improving communication efficiency. For this purpose, a wireless communication equipment is connected to a plurality of networks, and includes a communication unit which sequentially communicates, at a predetermined interval, with devices included in the plurality of network, a determination unit which determinates a communication control parameter of each of the devices when a connection network count changes, a notification unit which notifies the device in the network of the communication control parameter determined by the determination unit, and a communication control unit which controls the communication unit in accordance with the communication control parameter notified by the notification unit.
Abstract:
Data communication using wireless service discovery is continuously provided even if a radio wave condition temporarily deteriorates or movement of an apparatus occurs. If a temporary deterioration in wireless radio wave environment is found in a communication apparatus including a service discovery function, a search is made again at a raised transmission power. Forcible disconnection processing from a higher-level layer is prevented when communication at the network layer level is continuing.
Abstract:
A method is provided for sending and receiving data between a first processor including a first cache memory and a second processor including a second cache memory via a shared memory. The method includes classifying, by the first processor, a transfer data area that stores data transferred between the first and second processors in the shared memory as a first area filling one cache line and a second area not filling one cache line, copying, by the first processor, data in the second area into a divided data area in the shared memory, the divided data area being aligned with a cache line in the first cache memory, and processing, by the second processor, the data in the first area and the data in the divided data area as data from the first processor.
Abstract:
Data communication using wireless service discovery is continuously provided even if a radio wave condition temporarily deteriorates or movement of an apparatus occurs. If a temporary deterioration in wireless radio wave environment is found in a communication apparatus including a service discovery function, a search is made again at a raised transmission power. Forcible disconnection processing from a higher-level layer is prevented when communication at the network layer level is ongoing.
Abstract:
A communication apparatus performs a process for selecting from a plurality of services and displaying a predetermined service, detects whether there is connection with or disconnection from a communication peer, switching, if connection with the communication peer is detected after disconnecting from the communication peer, a service to be selected and displayed, and providing the selected and displayed service.
Abstract:
A method is provided for sending and receiving data between a first processor including a first cache memory and a second processor including a second cache memory via a shared memory. The method includes classifying, by the first processor, a transfer data area that stores data transferred between the first and second processors in the shared memory as a first area filling one cache line and a second area not filling one cache line, copying, by the first processor, data in the second area into a divided data area in the shared memory, the divided data area being aligned with a cache line in the first cache memory, and processing, by the second processor, the data in the first area and the data in the divided data area as data from the first processor.
Abstract:
Installation (wired connection) of a function expansion device in a portable information terminal is detected. This detection causes a connection authentication code to be generated. The generated connection authentication code is stored in each of the portable information terminal and the function expansion device via a wire circuit so as to be used for authentication for wireless connection.
Abstract:
According to this invention, a wireless communication equipment which communicates with a plurality of nodes supplies an access control technique for improving communication efficiency. For this purpose, a wireless communication equipment is connected to a plurality of networks, and includes a communication unit which sequentially communicates, at a predetermined interval, with devices included in the plurality of network, a determination unit which determinates a communication control parameter of each of the devices when a connection network count changes, a notification unit which notifies the device in the network of the communication control parameter determined by the determination unit, and a communication control unit which controls the communication unit in accordance with the communication control parameter notified by the notification unit.
Abstract:
A communication apparatus includes a notification unit configured to notify another communication apparatus on a network of the start of a service, a reception unit configured to receive a service join request in response to the notification, a determination unit configured to determine whether to provide the service to the communication apparatus that has transmitted the join request, a transmission unit configured to transmit a service rejection message to a communication apparatus that is determined by the determination unit as a service rejection target, and a re-notification unit configured to re-notify another communication apparatus on the network of the start of the service on the basis of the determination result of the determination unit.