192results about How to "False detection" patented technology

In various examples, detected object data representative of locations of detected objects in a field of view may be determined. One or more clusters of the detected objects may be generated based at least in part on the locations and features of the cluster may be determined for use as inputs to a machine learning model(s). A confidence score, computed by the machine learning model(s) based at least in part on the inputs, may be received, where the confidence score may be representative of a probability that the cluster corresponds to an object depicted at least partially in the field of view. Further examples provide approaches for determining ground truth data for training object detectors, such as for determining coverage values for ground truth objects using associated shapes, and for determining soft coverage values for ground truth objects.

A digitizer system includes a designated sensing area comprising a plurality of sensing lines for sensing an electromagnetic signal emitted by a stylus interacting with the digitizer system, circuitry for detecting output from the plurality of sensing lines and for determining an interacting position of the stylus in the designated sensing area based on the output detected and a peripheral area contiguous to the designated sensing area. The peripheral area includes a plurality of conductive elements for connecting the plurality of sensing lines to the circuitry and at least one auxiliary sensing line extending over the peripheral area in the vicinity of the plurality of conductive elements and connected to the circuitry. The at least one auxiliary sensing line is operable to sense the electromagnetic signal when it is emitted over the peripheral area and the circuitry is operable to detect output from the at least one auxiliary sensing line.

A gaze direction tracking system for an ophthalmic lens comprising an electronic system is described herein. The gaze direction tracking system is part of an electronic system incorporated into the ophthalmic lens. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The gaze direction tracking system is utilized to determine pupil position and use this information to control various aspects of the ophthalmic lens.

There is provided an environment recognizing device for a vehicle capable of reducing false detections for an artificial object such as a utility pole, a guardrail and road paintings with smaller processing load, at the time of detecting a pedestrian by using a pattern matching method. The environment recognizing device for a vehicle includes an image acquisition unit (1011) for acquiring a picked up image in front of an own vehicle; a processing region setting unit (1021) for setting a processing region used for detecting a pedestrian from the image; a pedestrian candidate setting unit (1031) for setting a pedestrian candidate region used for determining an existence of the pedestrian from the image; and a pedestrian determination unit (1041) for determining whether the pedestrian candidate region is the pedestrian or an artificial object depending on a gray-scale variation rate in a predetermined direction within the pedestrian candidate region.

A system and method for detecting malicious code based on the Web are disclosed herein. The system includes a Uniform Resource Locator (URL) collection unit, a data crawling unit, a malicious code candidate extraction unit, and a secure pattern filtering unit. The URL collection unit collects and stores the URL information of a web server. The data crawling unit crawls and stores the contents data of a website. The malicious code candidate extraction unit detects a pattern, matching previously stored malicious pattern information, in the stored data, and extracts an event including the detected pattern as a malicious code candidate. The secure pattern filtering unit detects a pattern, matching previously stored secure pattern information known as being secure, in the extracted malicious code candidate, filters out the event including the detected pattern from the extracted malicious code candidate, and outputs a remaining malicious code candidate as malicious code.

A proximity sensor measures receptor output with an energy source deactivated. The sensor then measures receptor output with the energy source activated. The measurements with the energy source activated are compared to the measurements with the energy source deactivated to compensate for the effect of ambient conditions. A near condition is recognized if the change between the two groups of measurements exceeds a designated value. To compensate for receptor output that may decrease after reaching a peak value during approach of an object, a near condition can be maintained until the change between the two groups of measurements no longer exceeds a different designated value. Multiple sensors can be used to avoid false near conditions caused by, e.g., placing a device equipped with the sensors next to a stationary object. In one embodiment, a sensor comprises an infrared light emitting diode and a phototransistor.

A rangefinder and method are provided for measuring a distance between the rangefinder and a target by measuring the flight time of a beam reflected from the target. In an embodiment, a receiver having reduced noise detects weak reflections from distant targets or targets with poor reflectivity. The receiver generates a voltage signal proportional to a reflected beam, clamps the voltage signal to remove a portion of the noise therefrom, and compares the voltage signal to a threshold. In some embodiments, the receiver also filters the voltage signal to remove a portion of the noise therefrom. In an embodiment, the sensitivity of the receiver is increased as a function of time to reduce the likelihood of detecting stray reflections from objects other than the intended target. In some embodiments, the rangefinder collects calibration data with each range measurement or group of range measurements. The calibration data comprise a plurality of simulated range measurements.

A movement detection apparatus that detects a shake added by an operator to execute a function of a device, the apparatus comprises an acceleration detection unit configured to detect accelerations caused by a shake in at least three-axis directions; a determination unit configured to determine an axis with a minimum value of acceleration and an axis with a maximum value of acceleration among the accelerations in at least three-axis directions detected by the acceleration detection unit; a decision unit configured to decide a direction of the shake added by the operator based on the axis with the minimum value and the axis with the maximum value determined by the determination unit; and a selection unit configured to select a predetermined function based on the result of the decision unit.

A ballast for a discharge lamp capable of reliably and successfully detecting the end of the lamp life and ceasing the ballast immediately upon detection of the lamp's life end. The ballast includes a power supply providing from a power source a variable power to the lamp, and a power controller controlling the power supply to apply a high voltage for igniting the lamp and subsequently apply a predetermined power for operating the lamp. A lamp life detector is included in the ballast to detect whether or not the lamp comes to a lamp's life end. Also included in the ballast is a supervisor which issues, upon detection of the lamp's life end, a disable signal prohibiting the power supply from lighting the discharge lamp. The power controller provides a detection period of a limited short time period starting from energization of the ballast such that the lamp life detector can detect the lamp's life end and issue a lamp's life end signal only when there is an extinction of lamp within the detection period, and that the supervisor issues, after the elapse of the detection period, an enable signal permitting the power supply to ignite the discharge lamp if the lamp is extinguished after the elapse of the detection period.

A rangefinder and method are provided for measuring a distance between the rangefinder and a target by measuring the flight time of a beam reflected from the target. In an embodiment, a receiver having reduced noise detects weak reflections from the targets or targets with poor reflectivity. The receiver generates a voltage signal proportional to a reflected beam, clamps the voltage signal to remove a portion of the noise therefrom, and compares the voltage signal to a threshold. In some embodiments, the receiver also filters the voltage signal to remove a portion of the noise therefrom. In an embodiment, the sensitivity of the receiver is increased as a function of time to reduce the likelihood of detecting stray reflections from objects other than the intended target. In some embodiments, the rangefinder collects calibration data with each range measurement or group of range measurements. The calibration data comprise a plurality of simulated range measurements.

An external circuit element RSET is connected in use to an SET terminal. A synchronous rectification controller generates a pulse signal S1 based on a control time determined according to the state of the SET terminal. A driver switches on and off the synchronous rectification transistor according to the pulse signal S1. An abnormal state detection circuit is capable of detecting an open-circuit state and / or a short-circuit state that can occur in the SET terminal. When the abnormal state detection circuit detects such an open-circuit state and / or short-circuit state, the abnormal state detection circuit asserts a detection signal S11. When the detection signal S11 is asserted, a primary-side controller arranged on the primary side of the DC / DC converter is instructed to suspend the switching operation of a switching transistor.

The present invention is a radar platform that detects intruders and wirelessly reports to a key-fob. The entire radar platform is water-resistant and two banks of batteries are included for convenience or extended operation time. The device consists of a MicroPower Radar (MPR), a data acquisition (DAQ) element and a processor. Radar sends a short, low-amplitude signal of radio-frequency (RF) energy toward the target. This signal reflects from the target and is received as a Doppler change in signal amplitude. The radar's RF energy is in the radio frequency band and operates at much lower powers than many mobile devices such as cell phones. This Doppler System change in signal amplitude is filtered, amplified and presented to the DAQ. The DAQ converts the analog Doppler signal into a digital bit-stream and passed to the radar processor. Proprietary software analysis is performed to further filter and to make an alarm determination.

A system for detecting an electrostatic discharge event with respect to a device to be monitored includes a current measurement device configured to measure a current flowing via a power supply connection connecting the device to be monitored with the power supply to obtain a current measurement signal representing the current or a current component. Alternatively, a current flowing through a protective earth connection connecting the device to be monitored with the protective earth is measured to obtain the measurement signal. The system includes an electrostatic discharge event detector configured to detect an electrostatic discharge event in response to a pulse of the current measurement signal. The system may optionally include data processing of current measurement signals or values.

A method for accurate signal detection begins by receiving a radio frequency signal, which is then converted into baseband signals. The processing then continues by performing a normalized auto correlation on the down-converted baseband signal to produce a normalized auto correlation signal. The process continues by performing a periodic pattern detection on the down-converted baseband signal to produce a normalized detected periodic signal. The process then continues by comparing the normalized auto correlation value with an auto correlation threshold and by comparing the normalized detected periodic signal with a set of thresholds. When the normalized auto correlation value compares favorably with the auto correlation threshold and when the normalized detected periodic signal compares favorably with the set of thresholds, the down-converted baseband signal is indicated to be a valid signal.

A sensor device is provided which includes a pressure-sensitive sensor which changes shape in response to pressing of an operation tool and which detects change in capacitance due to the change in shape, and a barrier which covers at least a part of the pressure-sensitive sensor and which prevents change in capacitance of the pressure-sensitive sensor due to capacitive coupling that occurs with approach between the pressure-sensitive sensor and the operation tool.

A surgical apparatus includes an actuation unit disposed on a handle and a control unit providing at least three modes for controlling the electrical instrument. The actuation unit contains a switching rocker with an operating element, which is rotatable about a rocker axis that can be shifted perpendicular to the surface of the handle, so that starting from an initial position a first or second function position can be reached by forwards or backwards rotation about the rocker axis, and a third function position can be reached by pressing the operating element inward, two sensors being disposed on the operating element, one on the left and the other on the right side of the rocker axis, in such a way that by means of the sensors the function position selected by means of the switching rocker can be determined by the control unit.

A semiconductor element drive device which individually drives semiconductor elements configuring a power converter includes plural protection circuits which detect information necessary for carrying out a protection operation for the semiconductor elements, an alarm signal output circuit which, having set therein pulse signals with pulse widths differing from one of the plural protection circuits to another, continuously outputs a pulse signal corresponding to a protection circuit, among the plural protection circuits, which has first detected that a protection operation is necessary, as an alarm signal during a period in which it is detected that the protection operation is necessary, and a notification signal output circuit which, when the alarm signal is output from the alarm signal output circuit, outputs one pulse thereof equivalent to the set pulse width as a protection operation notification signal.

A power supply controller includes a semiconductor switching element disposed on a current supply line from a power source to a load. The semiconductor switching element is switched between ON and OFF for controlling power supply to the load. A short anomaly of the semiconductor switching element is determined if at least one of an input-to-output voltage of the semiconductor switching element being smaller than a first threshold and the semiconductor switching element being in an ON state is detected, when an OFF signal for instruction to turn OFF the semiconductor switching element is received.

A centrifugal blood separation system comprising a rotor, a light source, an optical sensor, a control system, a separation vessel, and an optical cell on the separation vessel. The optical cell has a first extraction port extending radially outwardly into the optical cell, a red blood cell extraction port downstream from the first extraction port and extending into the optical cell beyond the first extraction port; and a dam between said first extraction port and said red blood cell extraction port, having an upper edge and a lower edge, wherein the first extraction port and the red cell extraction port are radially between the upper edge and the lower edge of the dam. Also, a first extraction port having a bore having a first diameter, a lumen having a second diameter smaller than the first diameter, and a frustro-conical passageway coupling the bore to the lumen.

The various embodiments herein provide a virtual apparel fitting system and a method for displaying the plurality of apparels virtually on the user. The virtual apparel fitting system includes an image capturing device and a digital screen. The image capturing device captures an image of a user and the digital screen recognizes one or more physical statistics of the user from the captured image. Further the user selects a plurality of apparels from the apparel library and the plurality of apparels are displayed virtually on the captured image of the user in the digital screen with a prediction on the accurate size and fit of the plurality of apparels on the user.

Provided is a lane detection system and method. The lane detection method includes extracting feature points of a driving lane from an input road image, extracting candidate start points and candidate end points from candidate control points selected from among the feature points, selecting a left start point and a right start point of the driving lane from among the candidate start points based on information corresponding to a width of the driving lane, and selecting a left end point and a right end point of the driving lane from among the candidate end points based on a number of the candidate control points between each of the left start point and the candidate end points and the right start point and the candidate end points.

A recognition system for a bathroom fixture operates by sending a photon pulse from an emitter, monitoring for a presence of an object within a predefined detection zone, and operating the bathroom fixture if the distance of the object is within the predefined detection zone. The monitoring occurs by detecting photons with a sensor, establishing a correlated or uncorrelated state of the detected photons, optically filtering the detected photons, calculating a distance of the object from the sensor based on the photon pulse sent from the emitter and the returned photons collected at the sensor, and determining whether the distance of the object from the sensor falls within the predefined detection zone.

An image processing device includes a reference background storage unit that stores a reference background image, an estimation unit that detects an object from an input image and estimates an approximate position and an approximate shape of the object that is detected, a background difference image generation unit that generates a background difference image obtained based on a difference value between the input image and the reference background image, a failure determination unit that determines whether a failure occurs in the background difference image based on a comparison between the background difference image that is generated by the background difference image generation unit and the object that is estimated by the estimation unit, a failure type identification unit that identifies a type of the failure, and a background image update unit that updates the reference background image in a manner to correspond to the type of the failure.

A thermal displacement correction device for a machine tool is provided with detection result determination unit configured to determine, based on an actual position and a reference position detected by position detection unit, whether or not the actual position is based on correct detection, correction error calculation unit configured to calculate a correction error in the actual position if it is determined that the result of detection is based on correct detection, and correction amount modification unit configured to modify a thermal displacement correction amount based on the correction error.

A lubricant supplying device used with a solid lubricant, includes a supplying member to supply lubricant taken from the solid lubricant to an object to be supplied with the lubricant, and a remaining amount detecting section to detect a remaining amount of the solid lubricant becoming below a predetermined value. A detection of the remaining amount of the solid lubricant is executed when an operation to supply the lubricant to the object to be supplied with the lubricant stops.

Provided is a smoke detecting apparatus capable of detecting occurrence of smoke at high sensitivity while suppressing an effect of disturbance. The smoke detecting apparatus for detecting occurrence of smoke by subjecting an image captured by a monitoring camera to image processing includes: an image memory (10) for storing a plurality of images captured by the monitoring camera in a time series; and a smoke detection area selecting portion (20) for calculating a luminance histogram of the same pixel for each predetermined pixel a plurality of times in a past predetermined period based on the plurality of images stored in the image memory (10), detecting presence or absence of a luminance value that has been newly generated due to occurrence of one of an intrusive object and smoke based on the luminance histogram, and identifying candidate regions to be subjected to the image processing.