Nec Corporation

Daicel Corporation

Yoshiaki Nishikawa

Takashi Oshiba

Masato Hirooka

Kazuaki Nakajima

Katsuhiro Ochiai

Toru Osuga

Kozo Satoda

A cylindrical filter for a pyrotechnic device, including a gas generating agent or pressurized gas as a gas generation source, includes a first annular end surface, a second annular end surface positioned opposite to the first annular end surface, and a cylindrical wall surface between the first annular end surface and the second annular end surface. At least one of the first and second annular end surfaces includes a weakened portion. The weakened portion, when provided in the first annular end surface, includes a first annular wall portion protruding from the first annular end surface and has a thickness less than a thickness of the first annular end surface. The weakened portion, when provided in the second annular end surface, includes a second annular wall portion protruding from the second annular end surface and has a thickness less than a thickness of the second annular end surface.

Cylindrical filter for pyrotechnic device, manufacturing method for cylindrical filter, and pyrotechnic device using cylindrical filter

A spatial data creating apparatus receives, the data for estimation being used to create spatial data that associate a location of a target area with value relating the location based on data acquired from a first group of sensors, the data for evaluation being acquired from a second group of sensors installed at a different location(s), classifies the data for evaluation based on difference between the data for evaluation and the value of the spatial data, creates subspace data that forms a part of the spatial data using data acquired from the first group of sensors selected based on the location(s) at which the data for evaluation is acquired, the location(s) being classified by the data classifying part among the data for estimation, determines whether or not the subspace data is adopted by comparing the subspace data with the data for evaluation.

Spatial data creating apparatus, spatial data creating method, and program

An example object of the present disclosure is to provide an information processing device that is capable of generating a received power distribution around a shield or an obstacle. The information processing device according to the present disclosure includes a detection unit configured to detect presence of an obstacle by using a measurement value of received power measured by a measurement device that receives a wireless radio wave, an estimation unit configured to estimate a change in received power in a predetermined area before detecting presence of the obstacle and after detecting presence of the obstacle, and an updating unit configured to update a first received power distribution in the predetermined area being stored in a storage device, which is generated based on the measurement value before detecting presence of the obstacle, by using the change in received power.

Information processing device, information processing system, data generation method, and non-transitory computer readable medium

An example of an object of the present disclosure is to provide an interference detection apparatus, an interference detection method, and a non-transitory computer-readable medium that allow a user to determine a priority of interference to be dealt with in communication. The interference detection apparatus according to an example embodiment includes at least one memory configured to store an instruction, and at least one processor configured to execute the instruction. The processor is further configured to learn a signal state model by using a learning signal in a communication signal, acquire a detection target signal in the communication signal, detect interference in the detection target signal, and calculate a severity of interference in the detection target signal by using the detection target signal, a detection result of the interference, and the learned signal state model.

Interference detection apparatus, interference detection method, and non-transitory computer-readable medium

A gas generator includes, a housing having a first container including a first bottom surface portion and a second container including a second bottom surface portion, the housing being formed by joining the first container and the second container, and an igniter attached to a mounting hole formed in the second bottom surface portion of the second container, the mounting hole including a passing region in the mounting hole, through which the igniter is passing, and a tip region around the passing region, the tip region being located, in a radial direction of the housing, outside an imaginary outer contour line when the igniter is projected onto the second bottom surface portion, in which paired edge portions intersect with each other to form a tip portion having a convex shape protruding outward in the radial direction of the housing on the outermost side of the region.

Gas generator

An estimation unitestimates, from each of acquired first time-series data pieces, a state of a radio field intensity at a position of an apparatusthat corresponds to each of the first time-series data pieces. The estimation unitestimates, from second time-series data, a state of the radio field intensity at a position of an apparatus. An estimation unitestimates a state of the radio field intensity at each point in a target space by using the position of each apparatusand the state of the radio field intensity thereof. An estimation unitcompares the state at each point with the state at the position of the apparatusand thereby estimates the position of the apparatus. An estimation unitestimates a position state of the apparatusbased on time-series data of the position of the apparatus

Position estimation apparatus, position estimation method, program, and position estimation system

A communication quality evaluation device includes: a storage unit configured to store permission relationship information indicating a relationship between a plurality of first objective indicators indicating communication quality, and use continuation possibility information indicating whether a user will continue use in the case of each of the first objective indicators; an indicator acquisition unit configured to acquire a second objective indicator at a point in time at which the communication quality evaluation device makes a determination; and a permission determination unit configured to determine, using the second objective indicator acquired by the indicator acquisition unit and with reference to the permission relationship information stored in the storage unit, whether the user will continue use on the basis of the result of the referencing.

Communication quality evaluation device, communication quality evaluation method, and communication quality evaluation program

A communication system includes: a transmission unit configured to transmit each of a plurality of measurement packets at a predetermined transmission interval; a reception unit configured to receive the plurality of measurement packets which have passed through a predetermined network for a predetermined number of times; and an available bandwidth estimation unit configured to calculate a cumulative value of a queuing delay by using reception time information indicating temporal information about reception of the measurement packets and transmission time information indicating temporal information about transmission of the measurement packets, and estimate an available bandwidth of the network by using the calculated cumulative value of the queuing delay.

Communication system, receiving-side apparatus and transmission-side apparatus

In order to enable retransmission control without imposing heavy load on a transmitter/receiver device and a network, a communication device includes: a transmission data generation unit that outputs, as transmission data, communication data for which an increase in transmission delay is to be reduced; a retransmission confirmation data generation unit that outputs, after the transmission data is output, retransmission confirmation data a predetermined number of times at a first transmission interval; and a communication interface that assigns order information indicating a transmission order, to each of the transmission data and the retransmission confirmation data, and transmits, after the transmission data is transmitted, the retransmission confirmation data.

Communication device and control method of communication device

A communication apparatus includes: a transmission unit including a narrow interval data transmission unit which transmits a predetermined plurality of sets of data at an interval narrower than a predetermined interval, upon receipt of a narrow interval data transmission instruction; and a reception unit including: a transmission data reception unit which receives data of an application of a communication partner, and issuing a notification each time the data is received; a data transmission interval reception unit which receives a time interval of data transmission from the communication partner; a data non-arrival detection unit which considers data not to be arrived, in the case where the notification has not been issued from the transmission data reception unit for a predetermined time period longer than the time interval received by the data transmission interval reception unit; and a narrow interval data transmission instruction unit which transmits a narrow interval data transmission instruction to the communication partner, when the data non-arrival detection unit considers data not to be arrived.

Communication apparatus and communication method

A contents playback apparatus and the like are provided which allow a user to promptly designate a desired portion when displaying a part of a content in an expanded manner, and are thus excellent in operability. A contents playback apparatus includes an associating unit and a playback unit. The associating unit generates association information for a plurality of characteristic portions contained in a content by referring to priority orders of the respective characteristic portions relative to each other, the association information associating each of the characteristic portions individually with a predetermined operation key of an input device included in the apparatus in accordance with the priority orders. The playback unit plays back, in response to detecting an operation of an operation key during display of the content, the characteristic portion corresponding to the operation key in an expanded display mode, in accordance with the association information.

Contents playback apparatus, contents playback method, and computer program

A call interlocking system according to the present invention includes a plurality of in-house control apparatuses each including, data relay means for relaying communication data between a telephone and a call control server and communication data between an information display terminal and an information providing server respectively, and interlocking means for determining whether or not it is possible to interlock a telephone call performed by the telephone with a service that the information display terminal requests to start, and for notifying, when the interlocking means determines that the interlocking is possible, a start request of the service including information for specifying the telephone call to the information providing server, and an information providing server that interlocks the service with the telephone call and provides the interlocked service based on the start request of the service notified from the in-house control apparatus.

Growing community of inventors

Tokyo, Japan

Yoshiaki Nishikawa