Abstract: According to an aspect of the present invention, a device for communication according to a specific communication protocol includes a processor for generating a connection request frame for requesting a connection to other device based on the communication protocol. The connection request frame includes a predetermined field. The processor initiates data communication at predetermined timing in a given time interval in the case of setting the predetermined field of the connection request frame to a predetermined value and receiving a connection assignment frame for accepting the connection request from the other device.

Abstract: An object is to appropriately control the transmission of image data to a plurality of terminal devices such that the user's desired playback is performed when plural pieces of image data are replayed using the plurality of terminal devices on the user side. When predetermined identification information is received from a first terminal device, a management server apparatus transmits first image data to the first terminal device. Then, when predetermined identification information is received from a second terminal device different from the first terminal device, the management server apparatus transmits second image data related to the first image data to the second terminal device if the received predetermined identification information is the same as the identification information received from the first terminal device.

Abstract: According to an aspect of the present invention, a device for communication according to a specific communication protocol is provided. The communication device includes a processor for generating and processing frames based on frame formats defined by the communication protocol. The processor generates a beacon frame so that information on a collision avoidance scheme supported by the device of a plurality kinds of information specified based on the communication protocol is omitted. Further, the processor processes a connection request frame transmitted from other device to extract information on a collision avoidance scheme supported by the other device, and controls communication with the other device based on comparison of the extracted information on the collision avoidance scheme with the information on the collision avoidance scheme supported by the device.

Abstract: A radio communication apparatus performing radio communication based on either role, a master or a slave, includes a role change receiver receiving a role change request from a slave to a master when the radio communication apparatus has a role of slave and has established connection to another radio communication apparatus operating as a master, and a receiver awaiting identification information transmitted by the other radio communication apparatus by receiving multiple channels including a given channel in a given pattern when the role change receiver receives the change request.

Abstract: A radio communication device, which performs radio communication with another radio communication device, includes: a radio communication unit configured to send identification information at a predetermined interval and receive a scan request sent by the another radio communication device that has received the identification information; and a control unit configured to change the predetermined interval in the case where the radio communication unit receives the scan request sent by the another radio communication device.

Abstract: According to an aspect of the present invention, a device includes a transmitter and receiver that transmits and receives communication packets to and from other device, and a processor. The processor receives a packet containing first information indicating a structure type of data from the other device via the transmitter and receiver and communicates data corresponding to the first information with the other device via the transmitter and receiver.

Abstract: According to an aspect of the present invention, a device capable of wireless communication includes a communicator configured to transmit and receive communication packets to and from other device, a memory configured to store one or more kinds of setting information, and a processor configured to determine whether or not at least one of the one or more kinds of setting information has been changed after the last communication with the other device, generate discrimination information indicating whether or not each of the one or more kinds of setting information has been changed, and control communication with the other device based on the discrimination information.

Abstract: A radio communication terminal receives position information showing a position of another radio communication terminal. The radio communication terminal obtains, from the position information, a terminal ID of the radio communication terminal, and a beacon ID for identifying the predetermined location nearest to the radio communication terminal. The radio communication terminal accepts the predetermined location designated by a user. The radio communication terminal determines as a communication partner terminal, the other radio communication terminal that is nearest to the accepted predetermined location based on the terminal ID and the beacon ID. The radio communication terminal performs communication with the determined communication partner terminal.

Abstract: In CE4, a communication terminal transmits data including a latency_off value “1”. After receiving the data, an environment information measuring apparatus transmits data since a latency counter value is “0”. The latency counter value becomes “2” and a latency_off counter value becomes “1”. In CE5, the communication terminal transmits data including a latency_off value “0”. Since each of the latency counter value and the latency_off counter value is not “0”, the environment information measuring apparatus does not receive the data from the communication terminal. The latency counter value becomes “1” and the latency_off counter value becomes “0”. In CE6, since the latency_off counter value is “0”, the environment information measuring apparatus receives the data from the communication terminal.

Abstract: In CE4, a communication terminal transmits data including a latency_off value “1”. After receiving the data, an environment information measuring apparatus transmits data since a latency counter value is “0”. The latency counter value becomes “2” and a latency_off counter value becomes “1”. In CE5, the communication terminal transmits data including a latency_off value “0”. Since each of the latency counter value and the latency_off counter value is not “0”, the environment information measuring apparatus does not receive the data from the communication terminal. The latency counter value becomes “1” and the latency_off counter value becomes “0”. In CE6, since the latency_off counter value is “0”, the environment information measuring apparatus receives the data from the communication terminal.

Abstract: According to an aspect of the present invention, a device capable of wireless communication includes a counter configured to count time, and a processor configured to perform control to send a notification signal for notification of existence of the device when the time of the counter reaches a predetermined first time, and correct the time of the counter to a predetermined second time upon receiving a connection request transmitted from other device in response to the notification signal.

Abstract: An image pickup apparatus having a controlling unit, a propulsion unit for propulsion of the image pickup apparatus, and an image pickup unit which images plural subjects or a single subject. The controlling unit controls the propulsion unit to move the image pickup apparatus such that at least two out of the plural subjects and the image pickup unit do not interfere in position with each other, or such that the single subject and the image pickup unit do not interfere in position with each other. For instance, detecting a line of the plural subjects, the controlling unit controls the propulsion unit to move the image pickup apparatus to a position in a direction perpendicular to a longitudinal direction of the detected line of the plural subjects, and instructs the image pickup unit to image the plural subjects or the single subject.

Abstract: According to an aspect of the present invention, a device capable of wireless communication includes a counter for counting current time, and a processor for setting a communication mode of the device to one of a notification mode in which the device sends a first notification signal for informing of its existence and a detection mode in which the device detects a second notification signal sent from other device. In the case that the processor changes the communication mode of the device from the notification mode to the detection mode and the second notification signal received in the detection mode includes first time information, the processor corrects time of the counter based on the first time information.

Abstract: A communication system includes a plurality of communication terminals and a server. The plurality of communication terminals perform wireless communication therebetween by a predetermined communication protocol. The server is to be connected with the plurality of communication terminals through a predetermined communication line. The plurality of communication terminals each include a first receiving section which receives identification information sent from another communication terminal for identifying the another communication terminal and a first sending section which sends to the server through the predetermined communication line the identification information received by the first receiving section.

Abstract: An objective of the present disclosure is to provide a wireless communication device that is capable of efficiently searching another wireless communication device that is capable of providing a required service. A master device, when the master device receives an advertisement from a slave device, transmits, to the slave device, a scan request that includes information on a requested service that the master device requires. The slave device, which has received the scan request, decides whether or not the slave device itself is capable of providing the requested services, and transmits, to the master device, a scan response that includes a result of the decision. When the decision result included in the scan response indicates that the slave device is capable of providing the requested service, the master device establishes a connection to the slave device.

Abstract: According to an aspect of the present invention, a device for communication according to a specific communication protocol includes a processor for generating a connection request frame for requesting a connection to other device based on the communication protocol. The connection request frame includes a predetermined field. The processor initiates data communication at predetermined timing in a given time interval in the case of setting the predetermined field of the connection request frame to a predetermined value and receiving a connection assignment frame for accepting the connection request from the other device.

Abstract: According to an aspect of the present invention, a device for communication according to a specific communication protocol is provided. The communication device includes a processor for generating and processing frames based on frame formats defined by the communication protocol. The processor generates a beacon frame so that information on a collision avoidance scheme supported by the device of a plurality kinds of information specified based on the communication protocol is omitted. Further, the processor processes a connection request frame transmitted from other device to extract information on a collision avoidance scheme supported by the other device, and controls communication with the other device based on comparison of the extracted information on the collision avoidance scheme with the information on the collision avoidance scheme supported by the device.

Abstract: When executing a predetermined application in which radio communication with a slave device is necessary, a master device scans an advertisement from the slave device by using previously-set one channel among three channels for advertising. When transmitting the advertisement to the master device executing the predetermined application, the slave device transmits the advertisement by using previously-set one channel among three channels for advertising.

Abstract: A radio communication apparatus performing radio communication based on either role, a master or a slave, includes: a role change receiver receiving a role change request from a master to a slave when the radio communication apparatus has a role of master and has established connection to another radio communication apparatus operating as a slave; and an identification information transmitter transmitting identification information to the other radio communication apparatus on a given channel at shorter time intervals when the role change receiver receives the change request than a given comparison criterion for when the role change receiver does not receive the change request.

Abstract: According to an aspect of the present invention, a device for generating frames for communication according to a specific communication protocol is provided. The communication protocol defines a plurality of kinds of frame formats and a beacon frame format defined by the communication protocol specifies a plurality of fields to be included in a beacon frame. The device generates a frame based on a frame format defined by the communication protocol. The device generates a beacon frame so that at least one of the plurality of fields specified by the beacon frame format defined by the communication protocol is omitted.