Abstract: An object detection apparatus includes: a reception unit that acquires a reception signal corresponding to a reflected wave from the object of a transmission wave; and an information processing unit that acquires object information related to a shape of the object from a learning model by inputting a feature quantity and other measurement information of a waveform of the reception signal to the learned learning model in which machine learning to estimate the shape of an object has been performed. The learning model extracts, as temporal feature data, changes over time in a feature element in the reception signal based on the reception signal and a feature pattern of the object prescribed in advance, compresses the temporal feature data and acquires a plurality of feature quantities, and determines the shape of the object by calculating the plurality of feature quantities and the measurement information while weighting with a predetermined weight.

Abstract: An object detection device includes a drive signal generator that generates a drive signal including frequency modulation, a first correlation filter that performs correlation detection between the reception signal and a first reference signal corresponding to the drive signal, a first determiner that determines, based on the correlation signal from the first correlation filter, whether the reception signal is a reflected wave of the probe wave transmitted from the transmitter, a second correlation filter that performs correlation detection between the reception signal and a second reference signal corresponding to a portion of the drive signal, a third correlation filter that performs correlation detection between the reception signal and a third reference signal corresponding to another portion of the drive signal having higher frequencies than the second reference signal, and a second determiner that determines whether there is an object within a detection region based on correlation signals from the secon

Abstract: The communication control device is configured to control communication between a central unit and a sensor unit in a sensor system having the central unit as a master device and the sensor unit as a slave device. The communication control device has: a sensitivity acquiring unit, that acquires a sensitivity status of the sensor unit during a detection operation in the sensor unit, the sensitivity status being defined as either a high sensitivity status or a low sensitivity status that is lower than the high sensitivity status, and a communication control unit that communicates special communication signals when the sensitivity acquiring unit acquires the low sensitivity status, the special communication signals being communication signals that are noise sources in the detection operation.

Abstract: An ink set includes a reaction liquid containing coagulant; a first ink containing a color material; and a second ink containing a color material. The ink set is used for recording on a non-absorptive recording medium or a low-absorptive recording medium and for imparting the reaction liquid, the first ink, and the second ink to the recording medium in a superimposed manner in this order.

Abstract: The wireless relay device according to the present disclosure includes: a reception unit to receive train control information; an information classification unit to classify the train control information into first control information requiring immediacy and second control information not requiring immediacy; a message generation unit to generate one message from the first control information contained in a piece of the train control information and to generate one message from a plurality of pieces of the second control information contained in a plurality of pieces of the train control information; and a transmission unit to transmit the messages generated by the message generation unit. With this configuration, it is possible to reduce the number of the data transfer messages which does not require immediacy while the instantaneous communication for the control information which requires immediacy is maintained.

Abstract: An apparatus includes a drive signal generator that selectively outputs, as a drive signal, one of a first drive signal and a second drive signal. The first drive signal has a first temporal frequency change within a first frequency band that is defined from a first lowest frequency to a first highest frequency inclusive. The second drive signal has a second temporal frequency change within a second frequency band that is defined from a second lowest frequency to a second highest frequency inclusive. Each of the first and second frequency bands has a corresponding one of first and second intermediate frequencies that is defined as one of a center frequency and an average frequency of the corresponding one of the first and second frequency bands. The second intermediate frequency is different from the first intermediate frequency. The second frequency band is partially overlapped with the first frequency band.

Abstract: An ink set includes a reaction liquid containing coagulant; a first ink containing a color material; and a second ink containing a color material. The ink set is used for recording on a non-absorptive recording medium or a low-absorptive recording medium and for imparting the reaction liquid, the first ink, and the second ink to the recording medium in a superimposed manner in this order.

Abstract: A T2X system includes: a wireless device installed on a ground along a track; and a plurality of wireless devices installed on a train in a line from a head side to a rear side of the train. When the wireless device installed on the ground and the plurality of wireless devices installed on the train perform communication using proximity service, a limitation is placed such that only one of the plurality of wireless devices is connected to the wireless device installed on the ground.

Abstract: An ink jet ink composition includes a pigment, a dispersant, and a biomass resin, the ink jet ink composition being an aqueous ink, in which the pigment is dispersed by the dispersant in water, and the dispersant includes a lignin compound.

Abstract: An aqueous ink jet ink composition contains a water-insoluble colorant, a lignosulfonate salt, and at least one element A selected from the group consisting of Ca, Mg, Mn, Fe, Al, and Si, and a total content of the element A is 5 to 120 mass ppm.

Abstract: An aqueous ink jet ink composition includes a natural-derived carbide, a dispersant, and a water-soluble organic solvent, the carbide is a carbide obtained by performing a complex separation treatment and an acid dissolution treatment on an untreated carbide, the complex separation treatment is a treatment to remove a complex obtained by mixing the untreated carbide and a chelating agent, and the acid dissolution treatment is a treatment to remove a water-soluble salt obtained by mixing the untreated carbide and an acid.

Abstract: An object detecting apparatus is configured to detect a surrounding object. The object detecting apparatus is provided with a driving signal generation unit provided to generate a driving signal that drives a transmitter unit including a transmitter emitting transmission waves externally; and a control unit provided to control an output of the driving signal transmitted to the transmitter unit from the driving signal generation unit. The driving signal generation unit is configured to generate the driving signal of which the frequency changes stepwise.

Abstract: A method for manufacturing a colored fiber body of the present disclosure includes a deposition step of depositing a mixture containing cellulose fibers and a composite body by an airflow, a humidifying step of humidifying the mixture; and a molding step of heating and pressurizing the humidified mixture to form a fiber body, and the composite body includes composite particles integrally containing a biological-derived colorant and a binding material to have a binding force to bind the cellulose fibers to each other by moisture application.

Abstract: Provided are: a sending/receiving unit to receive data frames sent from another wireless station and receivable, the receivable data frames including a first data frame that is a relay target; an interference time storage unit to store an interference time that is a time from when the sending/receiving unit starts receiving each of the data frames to when the sending/receiving unit terminates receiving the data frame; a waiting time determination unit to determine a waiting time on a basis of the interference time; a frame generation unit to generate a second data frame by changing a destination of the first data frame to a data aggregation station that aggregates the data frames or to a wireless station that serves as a relay destination; and a transmission control unit to wait for the waiting time and cause the sending/receiving unit to send the second data frame.

Abstract: An object detection apparatus detects an object in a vicinity of a moving body in a state of being mounted to the moving body. The object detection apparatus measures a reverberation frequency that is a frequency of a reverberation signal that is generated in a transceiver that externally transmits a transmission wave that is an ultrasonic wave and receives a reception wave that includes a reflected wave of the transmission wave from the object. object detection apparatus detects the object based on the reception wave. The object detection apparatus sets at least one of a transmission characteristic and a reception characteristic in the transceiver. The object detection apparatus sets at least one of transmission characteristics of the transmission wave and/or sets circuit characteristics in the transceiver. The object detection apparatus reduces at least one of the transmission characteristic and the reception characteristic during measurement of the reverberation frequency.

Abstract: An object detection apparatus detects an object in a vicinity of a moving body in a state of being mounted to the moving body. The object detection apparatus measures a reverberation frequency that is a frequency of a reverberation signal that is generated in a transceiver that externally transmits a transmission wave that is an ultrasonic wave and receives a reception wave that includes a reflected wave of the transmission wave from the object. The object detection apparatus detects a specific segment that is an occurrence segment in which occurrence of beat that is attributed to a plurality of reverberation frequency components is confirmed in the reverberation signal, or a non-occurrence segment in which the occurrence of beat does not significantly occur. The object detection apparatus sets a measurement segment in which the reverberation frequency is measured in the non-occurrence segment based on a detection result of the specific segment.

Abstract: An ink jet ink composition is provided which contains water, a (meth)acrylic resin, and a wax emulsion and which is a water-based clear ink, and the (meth)acrylic resin described above satisfies predetermined requirements.

Abstract: An object detection device includes a drive signal generator that generates a drive signal including frequency modulation, a first correlation filter that performs correlation detection between the reception signal and a first reference signal corresponding to the drive signal, a first determiner that determines, based on the correlation signal from the first correlation filter, whether the reception signal is a reflected wave of the probe wave transmitted from the transmitter, a second correlation filter that performs correlation detection between the reception signal and a second reference signal corresponding to a portion of the drive signal, a third correlation filter that performs correlation detection between the reception signal and a third reference signal corresponding to another portion of the drive signal having higher frequencies than the second reference signal, and a second determiner that determines whether there is an object within a detection region based on correlation signals from the secon

Abstract: An ultrasonic sensor includes a magnetic substance, a diaphragm, and an electromagnetic transducer. The electromagnetic transducer is disposed opposing the magnetic substance across an outer plate of a vehicle. The diaphragm has the shape of a thin film with a film thickness direction along an axial direction parallel to a directional axis. The diaphragm is able to ultrasonically oscillate by being joined to an outer surface of the outer plate at an outer edge in a radial direction crossing the directional axis. With the outer edge of the diaphragm joined to the outer surface of the outer plate, an internal space that expands and contracts along the axial direction in response to ultrasonic oscillation of the diaphragm is formed between the diaphragm and the outer surface of the outer plate.

Abstract: An ultrasonic sensor installable to a vehicle includes a shield section, a vibration conversion section, and an electric circuit section. The shield section includes a conductive layer. The conductive layer is bonded to an outer plate, which is a body part formed of non-conductive material, on an inner surface side of the outer plate. A vibration conversion section, which has a function of converting ultrasonic vibration and electrical signals, is bonded to the shield section to enable ultrasonic vibration together with the outer plate. An electric circuit section is electrically connected to the vibration conversion section to enable the transfer of the electric signals to and from the vibration conversion section. The shield section is electrically short-circuited to a ground side line electrically connected to the electric circuit section to shield the vibration conversion section.