Abstract: An information providing system according to an aspect of the present disclosure is an information providing system for providing product information requested by a store visitor, and includes: a detection unit that detects a finger pointing of a person from an image acquired by an imaging device, a specifying unit that specifies a product from a direction of the finger pointing, and a display unit that displays product information of the specified product in a case where a specified elapsed time exceeds a predetermined time.

Abstract: A spatial infection risk determination system according to one aspect of the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: detect a person from a captured image in a space acquired by an imaging device; and determine an infection risk in the space based on a floor area of the space and an area of a circle whose center is the detected person, the area of the circle being based on a distance to prevent infection of an infectious disease.

Abstract: To make it easy to recognize whether each person is in a situation in which the person may catch an infectious disease, the present invention provides an information output apparatus 10 including an acquisition unit 11 that acquires a captured image acquired by photographing a space, a detection unit 12 that detects a person from the captured image, a determination unit 13 that determines a radius of a circle to be displayed over the captured image in an overlapping manner according to a predetermined condition, and a display control unit 15 that displays an image in which a circle surrounding each of the detected persons is displayed over the captured image in an overlapping manner.

Abstract: A radar sensor system includes an antenna module configured to generate an array of real signal measurements that correspond to signals transmitted from first antennas arranged on the antenna module, reflected from an object in the environment, and received by second antennas arranged on the antenna module, and a virtual array (VA) estimation module configured to generate a VA including the real signal measurements and a plurality of virtual signal measurements that correspond to locations in the VA between the real signal measurements and generate, based on the VA, detection data indicative of the object in the environment.

Abstract: A power device driving apparatus drives a plurality of power devices including first and second power devices. In the apparatus, a plurality of drive circuits are separately provided for at least the first power device and the second power device and output drive signals to the respective power devices. The isolated power supply includes a first isolated power supply unit that supplies a first supply voltage, and a second isolated power supply unit that supplies a second supply voltage that is different from the first supply voltage. The plurality of drive circuits includes a first drive circuit that uses the first supply voltage supplied from the first isolated power supply unit to output the drive signal to the first power device, and a second drive circuit that uses the second supply voltage supplied from the second isolated power supply unit to output the drive signal to the second power device.

Abstract: A power device driving apparatus drives a plurality of power devices including first and second power devices. In the apparatus, a plurality of drive circuits are separately provided for at least the first power device and the second power device and output drive signals to the respective power devices. The isolated power supply includes a first isolated power supply unit that supplies a first supply voltage, and a second isolated power supply unit that supplies a second supply voltage that is different from the first supply voltage. The plurality of drive circuits includes a first drive circuit that uses the first supply voltage supplied from the first isolated power supply unit to output the drive signal to the first power device, and a second drive circuit that uses the second supply voltage supplied from the second isolated power supply unit to output the drive signal to the second power device.

Abstract: A driver circuit works to drive a first switch and a second switch connected in parallel to each other. The driver circuit includes first and second charge switches and first and second diodes to turn on only one(s) of the first and second switches selected as an on-target(s). The driver circuit includes first and second individual discharging paths connected to gates of the first and second switches, first and second discharge resistors, a shared discharge path, and a shared discharge resistor. This structure is capable of reducing a switching loss.

Abstract: In a cover of a buckle device, an engagement hook of a side wall of an upper cover is fit together with an engagement groove of a side wall of a lower cover to assemble the upper cover to the lower cover. When the side wall of the upper cover receives an external force, a holder of a buckle switch is sandwiched between a side plate of a buckle body and a rib of the lower cover such that the side plate receives the external force. Accordingly, the rigidity at the engagement hook of the cover is able to be increased.

Abstract: A drive circuit drives switches that are connected to each other in parallel. The drive circuit includes individual discharge paths, a common discharge path, blocking units, a discharge switch, off-holding switches, and a drive control unit. The drive control unit selects, as target switches to be driven to be turned on, at least two switches among the switches. The at least two switches include a first switch and a second switch. The first switch is last to be switched to an off-state among the at least two switches that are selected as the target switches and switched to an on-state. The second switch is other than the first switch among the at least two switches. The off-holding switches includes a first off-holding switch and a second off-holding switch. After switching the second off-holding switch to an on-state, the drive control unit switches the discharge switch to an on-state.

Abstract: A power device driving apparatus drives a plurality of power devices including first and second power devices. In the apparatus, a plurality of drive circuits are separately provided for at least the first power device and the second power device and output drive signals to the respective power devices. The isolated power supply includes a first isolated power supply unit that supplies a first supply voltage, and a second isolated power supply unit that supplies a second supply voltage that is different from the first supply voltage. The plurality of drive circuits includes a first drive circuit that uses the first supply voltage supplied from the first isolated power supply unit to output the drive signal to the first power device, and a second drive circuit that uses the second supply voltage supplied from the second isolated power supply unit to output the drive signal to the second power device.

Abstract: A drive circuit drives switches that are connected to each other in parallel. The drive circuit includes individual discharge paths, a common discharge path, blocking units, a discharge switch, off-holding switches, and a drive control unit. The drive control unit selects, as target switches to be driven to be turned on, at least two switches among the switches. The at least two switches include a first switch and a second switch. The first switch is last to be switched to an off-state among the at least two switches that are selected as the target switches and switched to an on-state. The second switch is other than the first switch among the at least two switches. The off-holding switches includes a first off-holding switch and a second off-holding switch. After switching the second off-holding switch to an on-state, the drive control unit switches the discharge switch to an on-state.

Abstract: A driver circuit works to drive a first switch and a second switch connected in parallel to each other. The driver circuit includes first and second charge switches and first and second diodes to turn on only one(s) of the first and second switches selected as an on-target(s). The driver circuit includes first and second individual discharging paths connected to gates of the first and second switches, first and second discharge resistors, a shared discharge path, and a shared discharge resistor. This structure is capable of reducing a switching loss.

Abstract: A switching circuit includes a printed circuit board that supports a switching element, a positive power supply circuit, a negative power supply circuit and a driving circuit thereon. The positive power supply circuit generates a positive voltage relative to a GND potential. The negative power supply circuit generates a negative voltage relative to the GND potential. The driving circuit supplies the gate electrode with the positive voltage and the negative voltage when turn on and off the switching element, respectively. The printed circuit board includes wiring as a conducting path extended from the negative power supply circuit to the gate electrode via the driving circuit. The conducting path includes a negative power supply wiring between the negative power supply circuit and the driving circuit. The negative power supply wiring at least partially includes a negative power supply solid pattern.

Abstract: A power device driving apparatus drives a plurality of power devices including first and second power devices. In the apparatus, a plurality of drive circuits are separately provided for at least the first power device and the second power device and output drive signals to the respective power devices. The isolated power supply includes a first isolated power supply unit that supplies a first supply voltage, and a second isolated power supply unit that supplies a second supply voltage that is different from the first supply voltage. The plurality of drive circuits includes a first drive circuit that uses the first supply voltage supplied from the first isolated power supply unit to output the drive signal to the first power device, and a second drive circuit that uses the second supply voltage supplied from the second isolated power supply unit to output the drive signal to the second power device.

Abstract: In a drive apparatus, a transmission unit mounted to a first region stops transmission of a pulse signal from a physical-quantity transmission terminal. The transmission unit transmits, from the failure information transmission terminal, a first signal indicative of an occurrence of the failure associated with the target switch when it is determined that the failure associated with the target switch has occurred, and transmits, from the physical-quantity transmission terminal, a second signal indicative of a content of the failure associated with the target switch. A controller mounted to a second region electrically isolated from the first region detects, based on the pulse signal from the physical-quantity transmission terminal, the physical quantity upon no input of the first signal to the controller. The controller identifies, based on the second signal transmitted from the physical-quantity transmission terminal, the content of the failure upon the first signal being input to the controller.

Abstract: A switching circuit includes a printed circuit board that supports a switching element, a positive power supply circuit, a negative power supply circuit and a driving circuit thereon. The positive power supply circuit generates a positive voltage relative to a GND potential. The negative power supply circuit generates a negative voltage relative to the GND potential. The driving circuit supplies the gate electrode with the positive voltage and the negative voltage when turn on and off the switching element, respectively. The printed circuit board includes wiring as a conducting path extended from the negative power supply circuit to the gate electrode via the driving circuit. The conducting path includes a negative power supply wiring between the negative power supply circuit and the driving circuit. The negative power supply wiring at least partially includes a negative power supply solid pattern.

Abstract: At a present buckle device, lateral slits are formed in lateral portions of a slider of a buckle switch. A tab is formed at a portion, which is further toward a device upper side than the lateral slit, of a lateral portion that is at a device left side. A portion, which is further toward a device lower side than the lateral slit, at the lateral portion is an elastic portion, and a magnet is held thereat. Therefore, even if the tab receives pushing force from an ejector and is deformed, deformation arising at the elastic portion can be suppressed, and holding of the magnet can be stabilized.

Abstract: An antenna device is provided with a plate-shaped grounded wiring board, a plate-shaped antenna element arranged to oppose the wiring board and spaced apart therefrom, two grounding leg parts which are disposed at ends of the antenna element and each of which has an extending tip connected to the wiring board, and a feeding leg part which is disposed at an end of the antenna element and which has an extending tip that connects to a transmission circuit or a reception circuit. A planar shape formed by the ends at which the plurality of grounding leg parts are disposed and the end at which the feeding leg part is disposed has point symmetry.

Abstract: In a drive apparatus, a transmission unit mounted to a first region stops transmission of a pulse signal from a physical-quantity transmission terminal. The transmission unit transmits, from the failure information transmission terminal, a first signal indicative of an occurrence of the failure associated with the target switch when it is determined that the failure associated with the target switch has occurred, and transmits, from the physical-quantity transmission terminal, a second signal indicative of a content of the failure associated with the target switch. A controller mounted to a second region electrically isolated from the first region detects, based on the pulse signal from the physical-quantity transmission terminal, the physical quantity upon no input of the first signal to the controller. The controller identifies, based on the second signal transmitted from the physical-quantity transmission terminal, the content of the failure upon the first signal being input to the controller.

Abstract: In a drive circuit, a rate adjuster adjusts a charging speed of a MOSFET to be faster than the charging speed of an IGBT when a drive state changer changes the first switching element from the off state to the on state first, and changes the second switching element from the off state to the on state next. The rate adjuster also adjusts a discharging speed of the MOSFET to be faster than the discharging speed of the IGBT when the drive state changer changes the MOSFET from the on state to the off state first, and changes the IGBT from the on state to the off state next.