Abstract: A device for detecting a user operation on an electrocapacitive sensor is provided, the device including: the electrocapacitive sensor; a lighting device positioned near the electrocapacitive sensor; a RAW detection part configured to detect a value of an electrostatic capacitance of the electrocapacitive sensor as a RAW value; a baseline setting part configured to set a baseline that serves as a reference value for the electrostatic capacitance of the electrocapacitive sensor while user operation detection is at work; a lighting controller configured to turn on the lighting device when, during a period in which the lighting device is turned off, the RAW value becomes less than a difference between the current baseline and a first threshold Th1; and an operation detector configured to detect the user operation on the electrocapacitive sensor when the RAW value is less than the difference between the current baseline and a first threshold Th1.

Abstract: Multiple infrared-light LEDs are aligned in the left-right direction, below the display surface of a display, and the approach position Gx of an object approaching the display surface is calculated from the distribution of the respective intensities of infrared light beams emitted from the LEDs in a front, oblique direction. Based on the horizontal coordinate Tx of a touch position on the touch panel and the approach position Gx, a user in a driver's seat, positioned right of the display, is identified as the touching operator of the touch panel if the approach position Gx is located Th1 or more apart to the right from the coordinate Tx, and a user in a passenger's seat, positioned left of the display, is identified as the touching operator if the approach position Gx is located Th1 or more apart to the left from the coordinate Tx.

Abstract: A touch detection system includes a display, touch sensors arranged below a lower edge of a display surface of the display, light sources, photodetectors to detect a reflected light of the non-visible light emitted by the light source, a touch detector to detect a touch on the touch sensors with a set detection sensitivity, and a proximity detector to detect proximity of a hand to a region below the lower edge of the display surface, wherein the proximity detector detects the proximity of the hand to the region when a predetermined condition is satisfied, and when the proximity of the hand to the region is detected, the touch detector sets the detection sensitivity of the touch detector to a first sensitivity, and otherwise, the touch detector sets the detection sensitivity of the touch detector to a second sensitivity, which is less sensitive than the first sensitivity.

Abstract: Multiple infrared-light LEDs are aligned in the left-right direction, below the display surface of a display, and the approach position Gx of an object approaching the display surface is calculated from the distribution of the respective intensities of infrared light beams emitted from the LEDs in a front, oblique direction. Based on the horizontal coordinate Tx of a touch position on the touch panel and the approach position Gx, a user in a driver's seat, positioned right of the display, is identified as the touching operator of the touch panel if the approach position Gx is located Th1 or more apart to the right from the coordinate Tx, and a user in a passenger's seat, positioned left of the display, is identified as the touching operator if the approach position Gx is located Th1 or more apart to the left from the coordinate Tx.

Abstract: A proximity detection device according to the present invention includes: a plurality of light emitting elements; a plurality of light receiving elements; a drive circuit configured to sequentially drive the plurality of light emitting elements; a measurement circuit configured to measure a light reception signal of a corresponding light receiving element when the plurality of light emitting elements are sequentially driven; and a control unit configured to i) control a drive current of a light emitting element such that a light emission amount of the light emitting element is suppressed, and ii) amplify a detection signal of a light receiving element to compensate for the suppressed light emission amount during measurement with a relatively short distance between the light emitting element and the light receiving element.

Abstract: A proximity detection device according to the present invention includes: a plurality of light emitting elements; a plurality of light receiving elements; a drive circuit configured to sequentially drive the plurality of light emitting elements; a measurement circuit configured to measure a light reception signal of a corresponding light receiving element when the plurality of light emitting elements are sequentially driven; and a control unit configured to i) control a drive current of a light emitting element such that a light emission amount of the light emitting element is suppressed, and ii) amplify a detection signal of a light receiving element to compensate for the suppressed light emission amount during measurement with a relatively short distance between the light emitting element and the light receiving element.

Abstract: Four infrared LEDs and two photodiodes PD are arranged below a lower side of a display surface in the order of an LED1, a PD1, an LED2, an LED3, a PD2, and an LED4. A detection signal A1 of the PD1 when the LED1 emits light, a detection signal A2 of the PD1 when the LED2 emits light, a detection signal A3 of the PD2 when the LED3 emits light, and a detection signal A4 of the PD2 when the LED4 emits light are used to estimate a reflection generation position in the left-right direction, and a threshold Th is set such that the threshold Th increases when the reflection generation position is on the left side, which is a driver's seat side. If the maximum value of A1, A2, A3, and A4 exceeds the threshold Th, the approach of the user's hand is detected.

Abstract: A proximity detection device includes a detection controller and a touch panel. The detection controller includes a drive unit that drives a sensor line on an X side or a Y side, a measurement unit that measures capacitance Cm, Cpx, and Cpy formed by the sensor line on the X side or the Y side, and a detection unit that performs touch detection or hover detection based on the capacitance Cm, Cpx, and Cpy measured by the measurement unit. When detecting a hover, the drive unit changes a frequency of the drive signal that drives the sensor line on the X side or the Y side and this improves a hover detection sensitivity.

Abstract: An electrostatic-capacitive proximity detecting device includes an electrode unit including a plurality of electrodes linearly arranged along one direction; an electrostatic capacitance detector that drives the electrodes in a time division manner and detects detection values corresponding to electrostatic capacitances between a to-be-detected object and the respective electrodes; and a position detector that detects a position of the to-be-detected object in the one direction, based on arrangement positions of the respective electrodes in the one direction and a bias in magnitudes of the detection values detected for the respective electrodes by the electrostatic capacitance detector.

Abstract: Implementations of a proximity detection device according to the present disclosure include a plurality of light emitting elements and a plurality of light receiving elements arranged in a lower portion of a touch panel display. The proximity detection device detects an object that is in proximity by reflected light received by the light receiving elements when irradiation light from the light emitting elements is reflected by the object. Implementations of a proximity detection device includes a drive circuit sequentially driving the plurality of light emitting elements, a measurement circuit measuring detection levels of the light receiving elements when the plurality of light emitting elements sequentially emit light, respectively, and a control unit having a function to estimate a position in the horizontal direction from a plurality of measurement results and correct the estimated position.

Abstract: An electrostatic-capacitive proximity detecting device includes an electrode unit including a plurality of electrodes linearly arranged along one direction; an electrostatic capacitance detector that drives the electrodes in a time division manner and detects detection values corresponding to electrostatic capacitances between a to-be-detected object and the respective electrodes; and a position detector that detects a position of the to-be-detected object in the one direction, based on arrangement positions of the respective electrodes in the one direction and a bias in magnitudes of the detection values detected for the respective electrodes by the electrostatic capacitance detector.

Abstract: A proximity detection device detects the proximity of an object using a light emitting element and a light receiving element that receives reflected light of irradiation light from the light emitting element reflected by the object. A mirror is provided near the light emitting element to reflect part of the irradiation light emitted from the light emitting element toward an area at which the irradiation light from the light emitting element does not sufficiently arrive, and a mirror is provided near the light receiving element to enable reception of the reflected light from the light emitting element in a wide range.

Abstract: A plurality of infrared LEDs, e.g., four, and a plurality of photodiodes, e.g., two, are arranged side by side in interleaved fashion in the order of an LED1, a PD1, an LED2, an LED3, a PD2, and an LED4, and are arranged slightly outside a side of the display surface. A threshold value Th is set so as to become small as max(Ei)/max(Aj) calculated from a detection signal of the PD1 when the LED1 emits light, a detection signal of the PD1 when the LED2 emits light, a detection signal of the PD2 when the LED3 emits light, a detection signal of the PD2 when the LED4 emits light, a detection signal of the PD2 when the LED1 emits light, and a detection signal of the PD1 when the LED4 emits light, and the approach of the hand of the user is detected when max(Aj) exceeds the threshold value.

Abstract: Implementations of a proximity detection device according to the present disclosure include a plurality of light emitting elements and a plurality of light receiving elements arranged in a lower portion of a touch panel display. The proximity detection device detects an object that is in proximity by reflected light received by the light receiving elements when irradiation light from the light emitting elements is reflected by the object. Implementations of a proximity detection device includes a drive circuit sequentially driving the plurality of light emitting elements, a measurement circuit measuring detection levels of the light receiving elements when the plurality of light emitting elements sequentially emit light, respectively, and a control unit having a function to estimate a position in the horizontal direction from a plurality of measurement results and correct the estimated position.

Abstract: Four infrared LEDs and two photodiodes PD are arranged below a lower side of a display surface in the order of an LED1, a PD1, an LED2, an LED3, a PD2, and an LED4. A detection signal A1 of the PD1 when the LED1 emits light, a detection signal A2 of the PD1 when the LED2 emits light, a detection signal A3 of the PD2 when the LED3 emits light, and a detection signal A4 of the PD2 when the LED4 emits light are used to estimate a reflection generation position in the left-right direction, and a threshold Th is set such that the threshold Th increases when the reflection generation position is on the left side, which is a driver's seat side. If the maximum value of A1, A2, A3, and A4 exceeds the threshold Th, the approach of the user's hand is detected.

Abstract: A plurality of infrared LEDs, e.g., four, and a plurality of photodiodes, e.g., two, are arranged side by side in interleaved fashion in the order of an LED1, a PD1, an LED2, an LED3, a PD2, and an LED4, and are arranged slightly ouside a side of the display surface. A threshold value Th is set so as to become small as max(Ei)/max(Aj) calculated from a detection signal of the PD1 when the LED1 emits light, a detection signal of the PD1 when the LED2 emits light, a detection signal of the PD2 when the LED3 emits light, a detection signal of the PD2 when the LED4 emits light, a detection signal of the PD2 when the LED1 emits light, and a detection signal of the PD1 when the LED4 emits light, and the approach of the hand of the user is detected when max(Aj) exceeds the threshold value.

Abstract: A proximity detection device detects the proximity of an object using a light emitting element and a light receiving element that receives reflected light of irradiation light from the light emitting element reflected by the object. A mirror is provided near the light emitting element to reflect part of the irradiation light emitted from the light emitting element toward an area at which the irradiation light from the light emitting element does not sufficiently arrive, and a mirror is provided near the light receiving element to enable reception of the reflected light from the light emitting element in a wide range.

Abstract: An information reproduction method comprises setting an imaginary access unit in a video object in which a still picture is recorded; and managing reproduction by use of the imaginary access unit.

Abstract: An information storage medium records contents and sets for each of the contents a resume permission flag indicating whether or not reproduction resume is permitted by a reproduction resume command or a command of a reproduction device executed based on a user operation.

Abstract: An information reproduction method comprises setting an imaginary access unit in a video object in which a still picture is recorded; and managing reproduction by use of the imaginary access unit.