Abstract:
A communication apparatus includes a communication unit and a controller. The controller determines, according to a first reference of received signal strength in one communication apparatus which is either an external communication apparatus or the communication apparatus, a transmitted signal strength for a transmission radio wave from the other communication apparatus as a first reference of transmitted signal strength. The controller determines a second reference of transmitted signal strength between the first reference of transmitted signal strength and a maximum strength of transmitted signal strength from the other communication apparatus. When a predetermined condition is satisfied, the controller obtains a received signal strength of the one communication apparatus for the transmission radio wave in the second reference of transmitted signal strength and determines a transmitted signal strength of a transmission radio wave from the other communication apparatus according to the received signal strength.
Abstract:
In automatic travel control of a flying device towards a target, when a current distance from the target is large in comparison to a prescribed distance threshold, a controller of the flying device performs velocity feedback PID control to control the flight propulsion unit of the flying device. When the current distance becomes small in comparison to the prescribed distance threshold, the controller performs a hybrid of the velocity feedback PID control and position feedback PID control to control the flight propulsion unit such that as the flying device approaches the target, the position feedback PID control becomes more dominant than the velocity PID control. The processor calculates a weighted average of the respective manipulated variables with dynamically adjusted weights to achieve the hybrid control.
Abstract:
A peripheral transmits an advertisement including an order of connection priority of when a central is connected to the own apparatus. The central receives the advertisement. The central acquires the order of connection priority included in the received advertisement. The central controls transmission of a connection request signal to the peripheral based on the acquired order of connection priority. In response to the transmitted advertisement, the peripheral receives a connection request signal transmitted from the central. According to the connection request signal, the peripheral establishes connection with the central.
Abstract:
A communication device, including: a communicator that communicates with a terminal that broadcasts an advertisement and broadcasts to a scanner terminal that receives data from the terminal; and a controller that controls the communicator to transmit to the terminal, data that is included in an advertisement that is scheduled to be broadcast by the terminal and transmission information regarding the advertisement and cause the communicator to broadcast the transmission information that is intended to cause the scanner terminal to receive the advertisement that is broadcast by the terminal.
Abstract:
A wireless communication device includes a wireless communicator that wirelessly communicates with other wireless communication device, and a processor. The processor controls the wireless communicator to broadcast first transmission information on which data with a first maximum size is deliverable, and controls, upon the wireless communicator receiving a request in response to the first transmission information from the other wireless communication device that received the first transmission information, the wireless communicator to transmit second transmission information on which data with a second maximum size is deliverable to the other wireless communication device. The second maximum size is larger than the first maximum size.
Abstract:
A sound collecting device including: a line-of-sight detector configured to detect line-of-sight information of user's eyes; a microphone; a processor configured to control the microphone so as to achieve sensitivity in the line-of-sight direction of the eyes higher than in other directions on the basis of the line-of-sight information detected by the line-of-sight detector; and an attachment portion for attaching the line-of-sight detector and the microphone on a head portion or an ear portion, wherein the microphone is provided on each of the two positions of the attachment portion, and the processor controls a plurality of the microphones on the basis of the line-of-sight information.
Abstract:
An information gathering apparatus includes an information acquisition sensor unit to acquire information and a propelling system to fly in air. The information gathering apparatus includes a supporting unit and a controller. The supporting unit supports the propelling system in the first and second configurations. The controller moves the supporting unit such that the supporting unit supports the propelling system in the second configuration after the information gathering apparatus is thrown up in a state where the supporting unit supports the propelling system in the first configuration.
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:
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. The receiver receives the multiple channels in the given pattern such that the time or number of times of awaiting the identification information on the given channel is longer or higher than a given comparison criterion for when the role change receiver does not receive the change request
Abstract:
A direction estimating device includes a plurality of antennas placed on a front surface of a board to have different main lobe directions of directivities, at least one antenna placed on a back surface of the board, a radiowave intensity obtainer that obtains a received signal strength indication (RSSI) of a radiowave received by the plurality of antennas placed on the front surface of the board, and by the at least one antenna placed on the back surface of the board, and an estimator that estimates an arriving direction of the radiowave based on the RSSI of the radiowave obtained by the radiowave intensity obtainer.