Abstract: A door handle includes door handle case, a first detection electrode and a second detection electrode disposed in the door handle case, and a controller connected to the first detection electrode and the second detection electrode. The controller separately measures a first capacitance between the first detection electrode and an operation body and a second capacitance between the second detection electrode and the operation body, and the controller determines whether a locking operation is performed by the operation body based on one or both of the first capacitance and the second capacitance.

Abstract: A step count measuring apparatus that measures the step count based on a degree of acceleration is provided. The step count measuring apparatus includes a local maximum/minimum value detection unit configured to detect at least one of a local maximum value and a local minimum value of the acceleration during a predetermined time, a threshold value determination unit configured to determine a threshold value based on at least one of the local maximum value and the local minimum value detected by the local maximum/minimum value detection unit, and a step count measuring unit configured to measure the step count based on the acceleration and the threshold value that has been determined by the threshold value determination unit.

Abstract: A door handle includes a door handle case and an electrostatic sensor provided in the door handle case. The electrostatic sensor includes a detection electrode that is formed of a flat conductor plate, or that is formed on a surface of a flat substrate or within a flat substrate. The detection electrode includes a middle portion in a longitudinal direction of the detection electrode and includes peripheral portions proximal to both end portions of the detection electrode in the longitudinal direction. For a width of the detection electrode in a direction perpendicular to the longitudinal direction, each peripheral portion is wider than the middle portion, and the width of the detection electrode gradually increases toward each end portion in the longitudinal direction.

Abstract: A walking measurement device is provided that includes a timing detection unit configured to detect an impact generation timing at which an impact resulting from a landing of a left foot or a right foot has been generated; an acceleration sensor configured to repeatedly detect, at predetermined time intervals, an acceleration in a lateral direction along which the left foot and the right foot are arranged side by side; and a first determination unit configured to determine whether the impact generation timing corresponds to a landing timing of the left foot or a landing timing of the right foot based on the impact generation timing detected by the timing detection unit and the acceleration detected by the acceleration sensor.

Abstract: A position detection system according to an embodiment of the present invention includes a plurality of fixed stations 20; and a sensor unit 10 including an inertial sensor that detects movement history of a mobile body 51 and a distance sensor that detects separation distances between the mobile body 51 and the fixed stations 20. A position of the mobile body 51 is determined by detecting a first arrival position P1 obtained based on the movement history, a second arrival position P2 obtained based on the separation distances, and a relative distance L1 between the first arrival position P1 and the second arrival position P2, and by comparing a range value R1 obtained based on the movement history with the relative distance L1. The range value R1 is changed based on the movement history.

Abstract: Accelerations (Ax, Ay, Az) in directions along (X?, Y?, Z?) detected by an acceleration sensor 10 are converted, based on a correction angle ?, which is an angle between a first detection axis X? and a first posture axis X, into accelerations (Bx By, Bz) in directions along three posture axes (X, Y, Z). A pitch angle ? and a roll angle ?, which indicate a posture of a portion to which the wearable device is attached, are calculated based on the accelerations (Bx By, Bz) obtained by the conversion based on the correction angle ?.

Abstract: A smart keyless entry system having an on-vehicle apparatus installed in a vehicle and a portable device configured to communicate with the on-vehicle apparatus includes a location calculating unit configured to calculate a location of the portable device through communication between the on-vehicle apparatus and the portable device, and a vertical-position calculating unit configured to calculate a vertical position of the portable device, wherein the on-vehicle apparatus and the portable device communicate with each other under conditions adjusted in response to the calculated vertical position of the portable device, and wherein control is performed based on the calculated location of the portable device.

Abstract: In a position detection system that has a plurality of transmitters/receivers placed at least three positions: processing is executed to measure distances among the plurality of transmitters/receivers, each distance being measured a plurality of times, and obtain a minimum value for each distance; processing is executed to obtain an angle between each two adjacent straight lines, each of which is one of straight lines that mutually connect the plurality of transmitters/receivers, by using minimum values, each of which is the minimum value for each distance; and if the absolute value of the difference between 180 degrees and the sum of angles, each of which is the angle between each two adjacent straight lines, inside a triangle formed by straight lines that interconnect three of the plurality of transmitters/receivers is smaller than a predetermined value, processing is executed to take the minimum values as the true values of the distances.

Abstract: An operation signal generating unit 11 and a reset unit 12 are included in a first circuit unit 10 that operates based on a first power supply voltage V1 and an output operation of a second power supply voltage B2 is stopped by outputting a reset signal Sr from the reset unit 12 to a regulator 20 in accordance with an operation signal Si of the operation signal generating unit 11. Hence, unlike a conventional technique, a large transistor for cutting off a power supply line is unnecessary, and therefore a device size can be reduced.

Abstract: A mobile station M is moved close to a mobile terminal unit 20 as a target object. In ST1, the absolute position of the mobile station M in an absolute coordinate system (Abs) set in a measurement area is calculated. In ST2, the relative position of the mobile terminal unit 20 in a relative coordinate system (Rel) set by the mobile station M is detected. In ST3, the orientation of the mobile station M in the absolute coordinate system (Abs) is detected. In ST4, the relative coordinate system (Rel) is rotated. In ST5, the absolute position of the mobile terminal unit 20 in the absolute coordinate system (Abs) is specified.

Abstract: A wakeup process of a living body tactile sensor and a wearing determination unit is performed when an accelerometer detects an acceleration. Accordingly, the living body tactile sensor and the wearing determination unit are in a sleep mode while the accelerometer detects no acceleration. When the wearing determination unit determines a non-wearing state, the wearing determination unit performs a sleep process to switch itself from a wakeup mode to the sleep mode.

Abstract: The biological information measurement apparatus includes a first signal applying unit which applies a first applying signal to electrodes at the time of the measurement of biological information, a biological information measurement unit which measures biological information based on detection signals of the electrodes at the time of the measurement of biological information, a second signal applying unit which applies a second applying signal to the electrodes at a time of detection of an attached state, and an attached state detection unit which detects an attached state based on the detection signals at the time of the detection of an attached state. At least some of the electrodes at the time of the measurement of biological information is identical with at least some of the electrodes at the time of the detection of an attached state.

Abstract: A position detection system performs first through third processes to measure, using high-frequency signals, a position of a slave device in a measurement area surrounded by parent devices. The first process measures distances between the slave device and each of the master devices a plurality of times, to obtain a minimum value of each of the distances. The second process obtains a position of an intersection point of two arcs among arcs respectively having the minimum value of each of the distances as a radius from respective centers of the master devices when a number of intersection points of the two arcs within the measurement area is one. The third process regards a center of gravity of the intersection points as a true position of the slave device when the intersection points are densely arranged.

Abstract: A physical quantity measuring apparatus has: a plurality of physical quantity sensors of the same type, each of which detects a physical quantity at intervals of a predetermined length of time; a computing unit that calculates an output value according to physical quantities detected by the plurality of physical quantity sensors at each detection time; and a deciding unit that makes a predetermined decision according to an output value calculated about the immediately preceding detection time and to physical quantities detected by the plurality of physical quantity sensors at the current detection time. The computing unit calculates an output value at each detection time according to a decision result of the deciding unit.

Abstract: A smart keyless entry system having an on-vehicle apparatus installed in a vehicle and a portable device configured to communicate with the on-vehicle apparatus includes a location calculating unit configured to calculate a location of the portable device through communication between the on-vehicle apparatus and the portable device, and a vertical-position calculating unit configured to calculate a vertical position of the portable device, wherein the on-vehicle apparatus and the portable device communicate with each other under conditions adjusted in response to the calculated vertical position of the portable device, and wherein control is performed based on the calculated location of the portable device.

Abstract: A position detection system performs first through third processes to measure, using high-frequency signals, a position of a slave device in a measurement area surrounded by parent devices. The first process measures distances between the slave device and each of the master devices a plurality of times, to obtain a minimum value of each of the distances. The second process obtains a position of an intersection point of two arcs among arcs respectively having the minimum value of each of the distances as a radius from respective centers of the master devices when a number of intersection points of the two arcs within the measurement area is one. The third process regards a center of gravity of the intersection points as a true position of the slave device when the intersection points are densely arranged.

Abstract: In a position detection system that has a plurality of transmitters/receivers placed at least three positions: processing is executed to measure distances among the plurality of transmitters/receivers, each distance being measured a plurality of times, and obtain a minimum value for each distance; processing is executed to obtain an angle between each two adjacent straight lines, each of which is one of straight lines that mutually connect the plurality of transmitters/receivers, by using minimum values, each of which is the minimum value for each distance; and if the absolute value of the difference between 180 degrees and the sum of angles, each of which is the angle between each two adjacent straight lines, inside a triangle formed by straight lines that interconnect three of the plurality of transmitters/receivers is smaller than a predetermined value, processing is executed to take the minimum values as the true values of the distances.

Abstract: A position detection system according to an embodiment of the present invention includes a plurality of fixed stations 20; and a sensor unit 10 including an inertial sensor that detects movement history of a mobile body 51 and a distance sensor that detects separation distances between the mobile body 51 and the fixed stations 20. A position of the mobile body 51 is determined by detecting a first arrival position P1 obtained based on the movement history, a second arrival position P2 obtained based on the separation distances, and a relative distance L1 between the first arrival position P1 and the second arrival position P2, and by comparing a range value R1 obtained based on the movement history with the relative distance L1. The range value R1 is changed based on the movement history.

Abstract: Accelerations (Ax, Ay, Az) in directions along (X?, Y?, Z?) detected by an acceleration sensor 10 are converted, based on a correction angle ?, which is an angle between a first detection axis X? and a first posture axis X, into accelerations (Bx By, Bz) in directions along three posture axes (X, Y, Z). A pitch angle ? and a roll angle ß, which indicate a posture of a portion to which the wearable device is attached, are calculated based on the accelerations (Bx By, Bz) obtained by the conversion based on the correction angle ?.

Abstract: A tilt adjusting image including a captured image that is obtained by capturing a wearer wearing a spectacle-type electronic device, and a horizontal line image indicating a horizontal direction identified by a tilt identification part, is displayed. The wearer adjusts a position of the spectacle-type electronic device by a wearer's hand or the like while viewing the tilt adjusting image so that the spectacle-type electronic device becomes horizontal. When the wearer judges that the spectacle-type electronic device has become horizontal, the wearer operates an operation part and inputs a calibration instruction. When the calibration instruction is input, the calibration instruction is transmitted to the spectacle-type electronic device.