Abstract: In accordance with an embodiment, a battery check device comprises a memory, an interface and a processor. The memory stores deterioration diagnosis information for determining a deterioration amount corresponding to a usage state of a battery. The interface is connected with a battery to which the deterioration diagnosis information is applicable. The processor reads history information indicating the usage state from the battery connected with the interface, and determines the deterioration amount of the battery connected with the interface on the basis of the history information read from the battery and the deterioration diagnosis information stored in the memory.

Abstract: A sensor device for measuring a current flow, having a sensor element for detecting the current flow, a first contact element for connecting the sensor element to the current source, a ground contact element for connecting the sensor element to a ground, wherein the ground contact element includes a first and second electrically conductive connector element, wherein the first connector element has a hole-like opening and wherein the second connector opening has a connector point, which can be pressed into the hole-like opening of the first connector element, such that the second connector element is fastened to the first connector element.

Abstract: To downsize a magnetic sensor by reducing the number of terminals of the magnetic sensor. A magnetic sensor to detect a magnetic field is provided, including: a drive terminal; a first output terminal; a second output terminal; and a magnetic sensing unit in which a first conduction path through which a driving current flows between the drive terminal and the first output terminal and a second conduction path through which a driving current flows between the drive terminal and the second output terminal are formed integrally. The magnetic sensing unit may have a first extending unit extending to the first output terminal and a second extending unit extending to the second output terminal.

Abstract: A signal receiver for receiving signals produced by a magnetic resonance scanner from an examination subject has an operating circuit and a local coil assembly having at least two coils, wherein the operating circuit is used to individually activate at least one of the at least two coils, and the operating circuit is located inside an RF-shielded room surrounding the magnetic resonance scanner.

Abstract: A side-looking Nuclear Magnetic Resonance (“NMR”) logging tool is designed to reduce and/or eliminate a borehole signal. The logging tool includes a magnetic assembly and a radio frequency (“RF”) transceiver antenna. The axial extent of the RF transceiver antenna has a length selected to reduce a borehole signal.

Abstract: In a method and magnetic resonance apparatus for recording diagnostic measurement data of a heart of an examination object, the magnetic resonance apparatus is operated by a control sequence wherein an RF pulse excites nuclear spins with a flip angle of at least 60°, the diagnostic measurement data are recorded in a coordinate system independent of the heart, and the basic magnetic field produced by the magnetic resonance apparatus is smaller than 1.0 tesla.

Abstract: A method and apparatus for acquiring a magnetic resonance (MR) signal are provided. The method includes: applying one radio frequency (RF) excitation pulse to a region of interest that has undergone a frequency shift by injecting a contrast agent into an object; acquiring a plurality of echo signals at a plurality of different echo times based on phase differences among water, fat, and the region of interest; and separating, based on the acquired plurality of echo signals, MR signals respectively originating from the water, the fat, and the region of interest.

Abstract: Systems and methods for producing quantitative maps of a longitudinal relaxation parameter, such as a longitudinal relaxation time (“T1”), using magnetic resonance imaging (“MRI”) are described. More particularly, a pulse sequence and imaging method for cardiac phase-resolved myocardial T1 mapping are provided.

Abstract: This invention provides an image processing method and apparatus for reconstructing an image of a site of a subject. The image processing method comprises: generating a first estimated phase of each shot of multiple shots of the site by sensitivity encoding based on shot data of the corresponding shot obtained for the site; reconstructing a first multiplexed sensitivity encoded image based on the first estimated phase of each shot and shot data of each shot; generating a second estimated phase of each shot of the multiple shots by regularized sensitivity encoding using the first multiplexed sensitivity encoded image; and reconstructing a second multiplexed sensitivity encoded image based on the second estimated phase of each shot and shot data of each shot. In this way, the quality of the finally reconstructed image in magnetic resonance imaging is further improved.

Abstract: In a method and apparatus for creating MR images of an examination volume, MR reference data of the examination volume are determined, and a local weighting matrix is determined using the MR reference data in order to extract MR data of the examination volume from MR signals measured in accelerated fashion with the local weighting matrix. Motion of the examination volume is determined while the MR signals measured in accelerated fashion from the examination volume are detected, whereby, if an adaptation of the reconstruction process is required when taking into consideration the determined motion, this proceeds by recalculation of the local weighting matrix taking into consideration the determined motion for correction of the determined motion, and application of the recalculated weighting matrix during the creation of the MR images which are calculated on the basis of the MR signals measured in accelerated fashion.

Abstract: A system and method for generating quantitative images of a subject using a nuclear magnetic resonance system. The method includes performing a navigator module to acquire navigator data, and performing an acquisition module during free breathing of the subject to acquire NMR data from the subject that contains one or more resonant species that simultaneously produce individual NMR signals in response to the acquisition module. The above steps are repeated to acquire data from a plurality of partitions across the volume. The navigator data is analyzed to determine if the NMR data meets a predetermined condition and if not, the above steps are repeated for at least an affected partition corresponding to NMR data that did not meet the predetermined condition. The NMR data is compared to a dictionary of signal evolutions to determine quantitative values for two or more parameters of the resonant species in the volume.

Abstract: A method for calibrating a radio frequency test instrument is described wherein a first frequency response is measured using a radio frequency and coarse intermediate frequency grid. A first matrix is created comprising data obtained from said first frequency response measuring. A second frequency response is measured using a radio frequency and fine intermediate frequency grid. A second matrix is created comprising data obtained from said second frequency response measuring. Said first matrix and said second matrix are processed and combined in order to determine a frequency response for a radio frequency desired, said first matrix and said second matrix comprising data obtained from measurements performed with different radio frequency and intermediate frequency grids. Further, a radio frequency test instrument is described.

Abstract: Systems and methods are provided in which a direction of arrival of a radio frequency (RF) signal received by a plurality of antennas is determined. A plurality of first converter receives RF signals from the plurality of antennas and outputs a minimum of a first optical signal and a second optical signal each modulated by their corresponding RF signal. A plurality of second converters receives a minimum of the first optical signal via a first optical channel that introduces a first delay and the second optical signal via a second optical channel that introduces a second delay. The second converter outputs a first RF signal that corresponds to the RF modulation on the first optical signal and a second RF signal that corresponds to the RF modulation on the second optical signal. A switch serially receives, from the second converter outputs, the first RF signal and the second RF signal.

Abstract: A mobile electronic device processes a sequence of images to identify and re-identify an object of interest in the sequence. An image sensor of the device, receives a sequence of images. The device detects an object in a first image as well as positional parameters of the device that correspond to the object in the first image. The device determines a range of positional parameters within which the object may appear in a field of view of the device. When the device detects that the object of interest exited the field of view it subsequently uses motion sensor data to determine that the object of interest has likely re-entered the field of view, it will analyze the current frame to confirm that the object of interest has re-entered the field of view.

Abstract: A user equipment (UE) is preconfigured with Positioning Reference Signal (PRS) configurations for a plurality of base stations. The UE receives a base station almanac including position information and identifies of local base stations. Using the PRS configurations and information from the base station almanac, the UE receives PRS signals from a first set of base stations. The UE may also receive cell-specific reference signals (CRS) from a second set of base stations. The UE performs location determination for the user equipment using the PRS signals from the first set of base stations, the CRS signals from the second set of base stations.

Abstract: A mobile station (MS), a base station subsystem (BSS), and various methods are described herein that enable the MS to receive acknowledgement of an access attempt for performing a multilateration timing advance (MTA) procedure using the Access Burst method without also being assigned resources.

Abstract: A mobile station (MS), a base station subsystem (BSS), and various methods are described herein that enable the MS to receive acknowledgement of an access attempt for performing a multilateration timing advance (MTA) procedure using the Access Burst method without also being assigned resources.

Abstract: A mobile station (MS), a base station subsystem (BSS), and various methods are described herein that enable the MS to receive acknowledgement of an access attempt for performing a multilateration timing advance (MTA) procedure using the Access Burst method without also being assigned resources.

Abstract: Disclosed are methods for aiding a mobile device in the acquisition of positioning reference signals (PRSs) transmitted in a cellular network in support of OTDOA positioning. In one implementation, a mobile device receives an offset parameter from a location server indicative of a difference in timing between transmission of a first PRS positioning occasion for a reference cell and transmission of a second PRS positioning occasion for a neighboring cell that supports multiple PRS configurations, where the second PRS positioning occasion is for a PRS configuration with a longest periodicity. The mobile device may determine an expected timing of PRS positioning occasions for other PRS configurations for the neighboring cell based on the offset parameter and may measure a Reference Signal Time Difference for the neighboring cell using the expected timing.

Abstract: A system and method for determining vehicle position uses light based communication (LBC) signals and a received signal strength indicator (RSSI) to determine the vehicle position. Each vehicle includes a LBC system having an array of transmitting light emitting diodes (LEDs) and an array of receiver photodiodes for transmitting and receiving pulsed light binary messages. Each LBC system has a controller coupled to the transmitter diodes and receiver diodes. The controller includes a vehicle communication module that may be executed by a processor to determine the distance. The processor models a first distance between a first transmitting LBC system and a first receiving LBC system, then models a second distance between a second transmitting LBC system and the first receiving LBC system, and then determines the distance between the first vehicle and the second vehicle using trilateration of the first distance and the second distance.

Abstract: A spectrum sensing radar system including a spectrum power sensing module configured to sense electromagnetic signal powers in a plurality of sub-frequencies and generate a sensed power set including a plurality of sensed electromagnetic signal powers corresponding to each of the plurality of sub-frequencies; a multi-objective function module configured to receive the sensed power set and calculate a first objective function for each of the plurality of sub-frequencies, wherein the first objective function includes a power function divided by an empirical measure of interference of the sensed power set to form a signal plus noise objective function for a sub-frequency of the plurality of sub-frequencies, and wherein the power function further includes a peak transmit power of the radar system multiplied by a gain of an antenna of the radar system, multiplied by a wavelength of a carrier of the sub-frequency.

Abstract: A method for determining surface characteristics is disclosed. The method may include transmitting a surface penetrating radar (SPR) signal towards a surface from a SPR system. The method may also include receiving a response signal at the SPR system. The response signal may include, at least in part, a reflection of the SPR signal from a surface region associated with the surface. The method may further include measuring at least one of an intensity and a phase of the response signal. The method my additionally include determining, based at least in part on the at least one of the intensity and the phase of the response signal, a surface characteristic of the surface.

Abstract: A radar apparatus includes; a detection unit that performs a detection processing of detecting a target iteratively at a predetermined cycle; a speed deriving unit that derives a speed of the target detected in a current iteration of the detection processing; a region setting unit that sets a prediction region where the target having temporal continuity with and being identical to the target detected in the current iteration of the detection processing is expected to be detected in a next iteration of the detection processing, while changing at least one of a size and a shape of the prediction region according to the speed derived by the speed deriving unit; and a determination unit that determines whether the target detected in the next iteration of the detection processing in the prediction region set by the region setting unit has the temporal continuity with and is identical to the target detected in the current iteration of the detection processing.

Abstract: System, methods, and other embodiments described herein relate to estimating an object from acquired data that is a partial observation of the object. In one embodiment, a method includes accessing, from a database, object data that is a three-dimensional representation of a known object. The method includes transforming the object data to produce partial data that is a partial representation of the known object with a relative fewer number of data points than the object data. The method includes training an observation model by using the partial data that is linked to the known object to represent relationships between the object data and the partial data that provide for estimating the known object from the obscured data of a partially observed object that is unknown.

Abstract: A system and method of dynamically controlling a light source is described herein. Modulated light that includes an input signal riding on illumination light can be emitted in a monitoring area, and an object can be detected in the monitoring area and passively tracked. Based on passively tracking the object, tracking data associated with the object can be received. Based on the tracking data, the illumination light can be steered towards the object in the monitoring area to increase the amount of illumination light striking the object and steered away from one or more sections of the monitoring area that are unoccupied by the object. Reflections of the modulated light can be received from the object and based on the received reflections, a depth distance of the object can be provided.

Abstract: A system and method for reducing multipath propagation is described herein. Modulated light may be diffusively emitted in a monitoring area for the purpose of determining depth distances. If an object is present, the object can be passively tracked. A vicinity occupied by the object may be identified as a high-interest vicinity, and vicinities unoccupied by the object may be designated as low-interest vicinities. The diffusive emission of the modulated light may be maintained with respect to the high-interest vicinity. Simultaneous to maintaining the diffusive emission of the modulated light with respect to the high-interest vicinity, the diffusive emission of the modulated light with respect to the low-interest vicinities may be ceased such that the amount of modulated light reaching the low-interest vicinities is reduced. A depth distance of the object may be determined.

Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a first transmitting optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the first transmitting optic and the pixel array.

Abstract: Aspects of the disclosure are related to a method for providing a driving signal to a piezoelectric element within a Lidar, comprising: determining a phase difference between a phase of the driving signal and a phase of cantilever vibration to be kept constant, the cantilever comprising the piezoelectric element and a fiber optic cable; generating a periodic signal while a difference between a phase of the periodic signal and the phase of cantilever vibration is kept constant at the determined phase difference with a phase-locked loop; amplifying the periodic signal into the driving signal; and supplying the driving signal to the piezoelectric element to cause the cantilever to vibrate, wherein light emitted from the fiber optic cable which deflects as part of the vibrating cantilever creates a scanning pattern.

Abstract: An optical unit contains an optical element made of resin obtained by integrally forming a reflector in which a reflecting surface which reflects a light flux is formed on an outer peripheral side surface, and a flange extending in a direction orthogonal to the reflector to support the reflector; a rotary driving body which rotates the optical element; and a connecting device which connects the flange of the optical element to the rotary driving body, the optical element being capable of rotating around a rotational axis of the rotary driving body.

Abstract: A light detection and ranging apparatus according to one embodiment includes a light transmitting unit for emitting a plurality of beams in different directions from each other and a light receiving unit for allowing backward-propagating lights returning after the emitted beams hit an object and are reflected from the object, to be incident at angles different from each other, and measuring information on the object by using the plurality of incident backward-propagating light, wherein the light transmitting unit includes at least one light source for emitting light; a beam splitter for splitting the light emitted from the at least one light source into a first beam and a second beam; and a beam steering unit for dividing the second beam split by the beam splitter into a plurality of third beams and for emitting the divided third beams in directions different from each other, wherein the plurality of beams emitted from the light transmitting unit include the first beam and the plurality of third beams.

Abstract: A multiline lidar includes: a laser emitting array configured to emit multi-beam laser; a laser receiving array configured to receive multiplexed laser echoes reflected by a target object; an echo sampling device configured to sample the multiplexed laser echo in a time division multiplexing manner and output a sampling data stream; a control system coupled to the laser emitting array, the laser receiving array, and the echo sampling device, respectively; the control system is configured to control operations of the laser emitting array and the laser receiving array, and determine measurement data according to the sampling data stream; and an output device configured to output the measurement data.

Abstract: A method includes preparing a first histogram from the emission of initial optical radiation and including at least one processing iteration performed at a rate of a clock signal having an internal period equal to a sub-multiple of the optical period a sensor signal and a reference signal. Successive iterations of histogram preparation are performed so that in each iteration a time shift of the initial optical radiation is provided by a first fraction of the internal period until at least one portion of the internal period is covered to obtain an additional histogram at the conclusion of each iteration. A numerical combination of the first histogram and additional histograms is performed to obtain a final histogram having a finer time granularity than that of the first histogram.

Abstract: The disclosure relates to determining whether an optical interferent is located on a sensor window and providing a way to identify and discard erroneous sensor data. An example system includes a housing, having a first sensor window and a second sensor window, a laser light source, and an optical sensor. The first window has a first property for deflecting water, and the second window has a second property for deflecting water different from the first property. The source is configured to generate a beam of light through the first window. One or more processors are configured to receive sensor data from the optical sensor and determine that an optical interferent is located on a surface of at least one of the first window and the sensor window based on a comparison between sensor data corresponding to the first window and sensor data corresponding to the second window.

Abstract: An echo measuring apparatus has: a transmission signal forming unit for forming a transmission signal by a pseudo noise sequence signal; a transmitting unit for transmitting the transmission signal as an ultrasonic wave into the water; a receiving unit for receiving an echo of the ultrasonic wave; and a correlator for discriminating the echo corresponding to the transmission signal by executing a correlating process to the echo by the pseudo noise sequence signal and measuring a distance to a measurement target on the basis of a time difference between the transmission signal and the echo, wherein assuming that a velocity of a sound wave in the water is equal to Vu and the distance to the measurement target is equal to D, a period of the transmission signal includes a case where it is equal to or less than (2D/Vu).

Abstract: A frequency steered sonar element comprises a transducer element and a grating element. The transducer element presents a longitudinal axis and is configured to receive a transmit electronic signal and generate an acoustic wave with a frequency component corresponding to a frequency component of the transmit electronic signal. The grating element presents a longitudinal axis and is oriented such that a longitudinal axis of the grating element and a longitudinal axis of the transducer element form an acute angle. The grating element includes a first surface and an opposing second surface. One or more of the surfaces includes one or more grooves distributed thereon, the one or more grooves including first and second facets. The grating element is configured to emit a sonar beam in an angular direction which varies according to the frequency component of the acoustic wave.

Abstract: Examples of techniques for detecting abrupt deceleration of a vehicle using Doppler change of a received signal are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method may include establishing, by a processing device, a radio link between a transceiver in the vehicle and a remote transceiver. The method may further include continuously calculating, by the processing device, a Doppler of the received signal. The method may further include detecting, by the processing device, a change in the Doppler of the received signal. The method may further include determining, by the processing device, whether the change in the Doppler of the received signal is indicative of an abrupt deceleration.

Abstract: A three-dimensional space detection system, including: a locating base station, a label device to be located, and a computing device. The locating base station synchronizes a base time point to the label device to be located, sends an ultrasonic signal to the label device to be located, rotationally sends a first laser plane signal about a first rotation axis, and rotationally sends a second laser plane signal about a second rotation axis perpendicular to the first rotation axis. The label device to be located synchronizes a base time point from the locating base station, detects the ultrasonic signal, the first laser plane signal and the second laser plane signal.

Abstract: A proximity detector includes a transmitting antenna producing, in accordance with a first radio frequency (RF) signal, an electro-magnetic field. A receiving antenna produces a first component of a second RF signal from an unscattered portion of the electro-magnetic field and produces a second component of the second RF signal from a scattered portion of the electro-magnetic field that is scattered by a user body exposed to the electro-magnetic field. The receiving antenna has an axis that is oriented perpendicularly with respect to an axis of the transmitting antenna in a manner to increase a ratio between a magnitude of the second component and a magnitude of the first component. A signal processor generates a proximity detection indicative signal when a change in the second component is indicative of a change in position of the electro-magnetic field scattering body. The proximity detection indicative signal automatically initiates a “wake-up” process in, for example, a tablet.

Abstract: A positioning sensor includes m receiving antennas connected to a feeder circuit and n variable loads, and a receiver that receives a first signal via the m receiving antennas. The positioning sensor further includes a memory that stores a first signal strength value of a first signal that the receiver receives when a variable load varies in value, and a processor that calculates a second signal strength value from a complex propagation channel, searches for a complex propagation channel candidate that has a minimum difference between a first signal strength and a second signal strength, determines the complex propagation channel candidate to be a complex propagation channel when the receiver receives the first signal, and estimates an incoming direction of the first signal from the determined complex propagation channel.

Abstract: An unmanned vehicle includes WiFi sensors, which generate data by reflecting electromagnetic waves off an object within a vicinity of the unmanned vehicle. WiFi data processing circuitry receives the data generated by the WiFi sensors and analyzes the data to determine a characteristic of the object.

Abstract: A localization system includes a plurality of radio frequency readers having transceivers and antennas. Adjustable configuration settings allow for configuration adjustments including signal strength, antenna gain, antenna polarization, and antenna orientation. A computer system is coupled with the radio frequency readers and is configured to determine a first location of an object based on data from the readers and compare it with a second location of the object based on data from a global positioning system device. The computer system is configured to perform an action based upon the determination that the first location and the second location are within a range, including that they are at the same location.

Abstract: A method and a surface penetrating radar (SPR) system for localization of a vehicle are disclosed. The method includes transmitting a radar signal having a first frequency into a subsurface region adjacent to a vehicle. A first set of SPR images of a first subsurface volume within the subsurface region is acquired and location data for the vehicle are determined from the first set of SPR images. A second radar signal having a frequency that is greater than the first frequency is transmitted into the subsurface region and a second set of SPR images of a second subsurface volume within the subsurface region is acquired. The second subsurface volume at least partially overlaps the first subsurface volume. Location data are determined from the second set of SPR images at a greater resolution than the location data determined from the first set of SPR images.

Abstract: An imaging device includes an antenna configured to transmit millimeter waves, a connector adapted to connect a radio frequency (RF) signal source with the imaging device and a signal path connected between the connector and the antenna. A nonlinear transmission line (NLTL)-based frequency multiplier is arranged along the signal path to receive an RF signal from the RF signal source and increase a frequency of the RF signal to millimeter frequency to produce a millimeter wave. A NLTL-based variable delay line is arranged along the signal path between the NLTL-based frequency multiplier and the antenna. A time delay of an NLTL of the NLTL-base variable delay line is variable to steer a beam of the millimeter wave in at least one dimension as the millimeter wave is transmitted by the antenna. A receiver processes a return signal received in response to the millimeter wave.

Abstract: An interferometric radar comprising an arm (2), which rotates with respect to an axis (z) of a plane (zx) orthogonal to an axis of rotation (y), a system of linear-polarization antennas (1), which is fixed to said arm (2) for describing complete revolutions along a circular path (c) about said axis (y) and is oriented in a direction of sight (a) parallel to the axis (y), motor-drive means (3) for driving the arm (2), a data-acquisition and processing unit (10) operatively connected to said antenna (1) for acquiring a succession of images detected by the antenna during its revolution about the axis (y) and making differential interferometric calculations for measuring at least one component of the displacement of one or more targets in the field of view, or else for measuring the digital elevation map (DEM) of the scenario in the field of view.

Abstract: The present invention relates to an antenna, a vehicle radar, and a vehicle equipped with the same. An antenna according to an embodiment of the present invention comprises: a substrate; a first conductive patch disposed on a first surface of the substrate; a second conductive patch disposed on a second surface of the substrate; first and second feeders electrically connected to the first conductive patch; a plurality of vias surrounding the periphery of the first and second conductive patches; a loop member disposed on the first surface of the substrate and surrounding the vias; and a third feeder electrically connected to the loop member, wherein the area of the first conductive patch and the area of the second conductive patch are the same. Thus, it is possible to stably transmit and receive radio waves in all directions.

Abstract: The present invention relates to a radar for a vehicle and a vehicle provided therewith. The radar for a vehicle, of the present invention, comprises: an antenna; a transmitter to externally transmit a transmission signal through the antenna; a receiver to signal-process a reception signal received from the antenna; and a processor to control at least one of a direction, an angle, or an intensity of a beam pattern output from the antenna based on image related information from a camera during vehicle driving. Accordingly, the radar beam pattern may be varied on the basis of the camera image.

Abstract: Techniques are disclosed for systems and methods to provide water temperature and sonar imagery for users of mobile structures, including watercraft. A water temperature display system includes a water temperature sensor and a logic device configured to communicate with the water temperature sensor. The water temperature sensor is configured to measure a temperature of or near a surface of a body of water. The logic device is configured to render water temperatures according to a three dimensional view of an area about a mobile structure. Subsequent user input, water temperatures, and/or the rendered view may be used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

Abstract: Techniques are disclosed for systems and methods to provide casting guidance for users of mobile structures, including watercraft. A casting guidance system includes a sonar transducer assembly and a logic device configured to communicate with the sonar transducer assembly. The sonar transducer assembly is adapted to be mounted to a mobile structure and placed in a body of water. The logic device is configured to identify one or more underwater targets in sonar data received from the sonar transducer assembly, determine casting guidance parameters corresponding to the one or more identified underwater targets, and generate at least one casting guidance identifier based, at least in part, on the determined casting guidance parameters. Subsequent user input, the sonar data, and/or the casting guidance parameters may be used to adjust a steering actuator, a propulsion system thrust, and/or other operational systems of the mobile structure.

Abstract: An imaging system includes a light-emitting device, an image sensor, and a control circuit. The light-emitting device includes a light source, a first waveguide that propagates light from the light source by means of total reflection, a second waveguide, and a first adjustment element. The control circuit causes the light source to repeatedly emit light pulses. Further, the control circuit causes at least some of the plurality of photo-detection cells to accumulate the signal charge in synchronization with the emission of the light pulses and thereby causes the image sensor to generate every first period of time a frame based on the signal charge thus accumulated. Furthermore, the control circuit causes the first adjustment element to change the direction of the emitted light from the second waveguide every second period of time that is shorter than or equal to half the first period of time.

Abstract: A detection system includes a detection device and a display device. The detection device includes a light projecting unit that projects light to a detection object, a light receiving unit that receives reflection light of the light, a light reception quantity acquiring unit that acquires a light reception quantity, and a distance acquiring unit that acquires a distance between a position at which the light is reflected and the detection object. The control device includes a setting unit that sets a threshold value range which is a combination of a threshold value of the light reception quantity and a threshold value of the distance, a detector that detects the detection object based on whether the light reception quantity and the distance belong to the threshold value range, and a display unit that displays correspondence information in which the light reception quantity and the distance are related to each other.