Abstract: A signal processing apparatus for a tool including a rotating body rotated by impacts delivered from a drive apparatus is provided with: a filter a calculation circuit and a control circuit. The filter receives a torque value signal indicating a torque applied to the rotating body, and filters the torque value signal. The calculation circuit sets a filter coefficient of the filter based on a number of impacts delivered to the rotating body. The control circuit controls the impacts delivered to the rotating body, based on the torque value signal filtered by the filter.

Abstract: A contactless power feeding system includes: a primary circuit for supplying primary power to a power feeding coil; and a primary control circuit for controlling the primary circuit. The primary control circuit acquires, from a secondary control circuit, a secondary measured value and a secondary target value of secondary power received by a power receiving coil. The primary control circuit performs control processing and update processing alternately and repeatedly. The control processing is processing of controlling the primary circuit to bring the primary measured value into conformity with a primary target value. The update processing is processing of updating the primary target value. The update processing includes processing of calculating the primary target value based on transfer efficiency to be determined by the primary measured value and the secondary measured value and on the secondary target value.

Abstract: A power conversion system includes a power conversion device, a connector, and a processing module. The power conversion device is connected to a power system. The attached state and the unattached state of the connector relative to a connecting port that is provided in an apparatus having a battery mounted therein can be selected. The processing module is configured to determine that a malfunction has occurred when a voltage is applied to a portion that electrically connects the connector and the connecting port in a period in which transmission of electric power with respect to the battery is stopped.

Abstract: A control circuit is configured to adjust a phase difference which is a delay of the phase of each of the second drive signals to the phase of each of the first drive signals to a set value within a prescribed range to adjust the magnitude of output power. The control circuit includes an estimator and a setter. The estimator estimates whether an initial mode which is an operation mode of an inverter circuit in the case of a variable capacitance circuit being disabled is a leading phase mode or a lagging phase mode while the variable capacitance circuit is operating. The setter sets the prescribed range in accordance with the initial mode estimated by the estimator.

Abstract: Safety around a vehicle can be improved when there is a disagreement between an operation state of the vehicle and the notification contents notified from the vehicle. Abnormality notifying apparatus includes a determiner that determines whether or not there is a disagreement in correspondence relationship between operation control and notification control based on a first signal related to the operation control of vehicle and a second signal related to the notification control for notifying notification information according to the operation control to outside vehicle. When there is a disagreement in correspondence relationship, abnormality notifying apparatus notifies information indicating that the vehicle is in an abnormal state to outside vehicle.

Abstract: A control circuit controls a plurality of conversion switching elements by first drive signals and a plurality of adjustment switching elements by second drive signals. The control circuit is configured to adjust a phase difference which is a delay of the phase of each of the second drive signals to the phase of each of the first drive signals to a set value within a prescribed range to adjust the magnitude of output power. The prescribed range includes at least one of a range of 270 degrees to 360 degrees and a range of 90 degrees to 180 degrees.

Abstract: A management system includes an authentication information management unit configured to manage authentication information used in authentication of a request to participate in a session among communication terminals; a content data management unit configured to manage content data transmitted among the communication terminals in the session; a request acceptance unit configured to accept a request for the content data managed by the content data management unit; an authentication unit configured to perform authentication using the authentication information managed by the authentication information management unit; and a transmission unit configured to transmit the content data managed by the content data management unit to a communication terminal that is a request source of the content data, when authentication of the request for the content data by the authentication unit using the authentication information is successful.

Abstract: An image management system includes an image management unit configured to manage at least a piece of image information among pieces of information transmitted in a session between a plurality of communication terminals, the piece of image information being related to an image output at each of the communication terminals; and a transmission unit configured to send the piece of image information managed by the image management unit to a first communication terminal configured to output an image based on the piece of image information.

Abstract: A disclosed communication apparatus includes a receiving unit that receives metadata of update data used for an update; a determination unit that determines, based on a description of the metadata, whether or not there is update data that is subject to advance download in which download of the update data is executed before a point of time at which the update is able to start; a control unit that determines whether or not it is timing to perform the advance download; and an update processing unit that downloads the update data in a case in which the determination unit determines that there is the update data that is subject to the advance download and the control unit determines that it is the timing to perform the advance download.

Abstract: A control circuit is configured to adjust a phase difference which is a delay of the phase of each of the second drive signals to the phase of each of the first drive signals to a set value within a prescribed range to adjust the magnitude of output power. The control circuit includes an estimator and a setter. The estimator estimates whether an initial mode which is an operation mode of an inverter circuit in the case of a variable capacitance circuit being disabled is a leading phase mode or a lagging phase mode while the variable capacitance circuit is operating. The setter sets the prescribed range in accordance with the initial mode estimated by the estimator.

Abstract: A control circuit controls a plurality of conversion switching elements by first drive signals and a plurality of adjustment switching elements by second drive signals. The control circuit is configured to adjust a phase difference which is a delay of the phase of each of the second drive signals to the phase of each of the first drive signals to a set value within a prescribed range to adjust the magnitude of output power. The prescribed range includes at least one of a range of 270 degrees to 360 degrees and a range of 90 degrees to 180 degrees.

Abstract: A communication system include: a first acquisition unit configured to acquire request information of session initiation and authentication information of session participation; a session management unit configured to establish the session between the first terminal and the second terminal; a second acquisition unit configured to acquire request information of session participation and the authentication information of session participation being input by a third terminal; and a participation determination unit configured to compare the authentication information of session participation obtained by the first acquisition unit with the authentication information of session participation obtained by the second acquisition unit, and the participation determination unit allowing the third terminal to participate in the session when the authentication information of session participation obtained by the first acquisition unit is identical to the authentication information of session participation obtained by the s

Abstract: A power converter 1 includes a first conversion circuit 10 connected with a first winding n1 of a transformer 40, and a second conversion circuit 20 connected with a second winding n2 of the transformer 40. The first and second conversion circuits 10 and 20 are configured to perform bidirectional power conversion. The power converter further includes a third conversion circuit 30 that is a circuit provided at a pre-stage of the first conversion circuit 10 in a direction of transferring electric power toward the second conversion circuit 20 from the first conversion circuit 10. The third conversion circuit 30 is configured to perform bidirectional power conversion, and function as a boosting chopper circuit upon transferring electric power toward the second conversion circuit 20 from the first conversion circuit 10.

Abstract: A communication terminal reads, from a removable memory, user-specific application information indicating one or more of the plurality of applications that are allowed for use by a specific user, and transmits a request for address information that includes application identification information of each one of one or more applications that are allowed for use by the specific user at the communication terminal to obtain address information associated with the application identification information.

Abstract: In response to receiving terminal identification information that identifies a request communication terminal, a communication management system obtains application information indicating one or more applications that are allowed for use by the request communication terminal, using the received terminal identification information of the request communication terminal, and transmits the application information of the request communication terminal to the request communication terminal through the communications network.

Abstract: A session control unit of a management system, in response to a request for starting communication between communication terminals, controls establishing a communication session sed1 for sending image data and sound data between the communication terminals, and controls establishing a communication session sed2 for sending operation data of an electronic pen between IWBs corresponding to the communication terminals, respectively.

Abstract: A communication management system includes a first terminal and a second terminal. The first terminal and the second terminal are each configured to transmit and receive content data including at least video and audio data captured at a location of each of the first terminal and the second terminal. The first terminal is designated as a content delivery source and content data captured at the location of the first terminal is transmitted to the second terminal. The second terminal is restricted from transmitting content data captured at the location of the second terminal.

Abstract: Connector for electrical connection includes coupler, cable, switch mechanism, failure detector and transmitter. Coupler is removably inserted in and connected to reception side connector provided in machine which is equipped with storage battery. Cable includes two or more electric wires including power line configured to be electrically connected to reception side connector via coupler. Cable is connected to device that performs at least one of supplying power to machine and receiving power from machine. Switch mechanism opens and closes electrical circuit between coupler and power line. Failure detector detects occurrence of failure of coupler. Transmitter transmits detection result of failure detector to device through at least one first electric wire of the two or more electric wires. Switch mechanism opens and closes the electrical circuit in accordance with control signal transmitted through first electric wire.

Abstract: A communication management system manages session information regarding a contents data session being established to communicate contents data among a plurality of participating communication terminals, and receives a request for registering a group of the plurality of participating communication terminals that are currently participating in the session, from a first participating communication terminal of the plurality of participating communication terminals, during when the session is being established. In response to the request for registering, the communication management system stores first candidate information of the first participating communication terminal in a first memory, the first candidate information associating the group of the plurality of participating communication terminals with the first participating communication terminal.

Abstract: During a dead time, a resonance current generated by a load current that flows in a resonance inductor and a resonance current generated by an excitation current of a transformer flow in a resonance circuit constituted by the resonance inductor and capacitors that exist in parallel to respective switching elements. A controller performs a turning off operation on the switching elements at a timing that the resonance current generated by the load current and the resonance current generated by the excitation current are cancelled each other during the dead time.