771 results about "Foreign object" patented technology

Wireless vehicle charger safety systems and methods use a detection subsystem, a notification subsystem and a management subsystem. The detection subsystem identifies a safety condition. The notification subsystem provides an indication of the safety condition. The management subsystem addresses the safety condition. In particular, undesirable thermal conditions caused by foreign objects between a source resonator and a vehicle resonator are addressed by sensing high temperatures, providing a warning and powering down a vehicle charger, as appropriate for the environment in which the charger is deployed.

A wireless energy transfer system includes a foreign object debris detection system. The system includes at least one wireless energy transfer source configured to generate an oscillating magnetic field. The foreign object debris may be detected by at least one field gradiometer positioned in the oscillating magnetic field. The voltage of the at least one field gradiometer may be measured using readout circuitry and a feedback loop based on the readings from the gradiometers may be used to control the parameters of the wireless energy source.

A method of estimating a position of a foreign object in the body, comprising: (a) providing a 3D data set of at least one blood vessel; (b) acquiring at least one 2D projection image of the vessel including the object; (c) registering the 2D projection image of the vessel to the 3D data set; and (d) using the registration to estimate a 3D position of said object restricted to be in a blood vessel, according to said 3D data set.

A power-transmission-side control circuit causes a power transmission device to perform temporary power transmission when a switch provided in a power-transmission-side instrument has been turned ON, and performs ID authentication based on ID authentication information. The power-transmission-side control circuit detects the presence or absence of a foreign object during normal power transmission by monitoring a change in induced voltage in a primary coil, causes the power transmission device to stop temporary power transmission when the ID authentication information from the power reception device has not been received within a given period of time, causes the power transmission device to stop temporary power transmission when the ID authentication has failed, and causes the power transmission device to stop normal power transmission when removal, a metal foreign object, a takeover state, or a full-charge state has been detected after normal power transmission has started.

A dust collection assembly of a vacuum cleaner is provided. The dust collection assembly includes a dust collecting box, a filter, a flow guide unit, an exhaust guider, and an upper cover. The dust collecting box and the flow guide unit are integrally formed in a single body. The dust collecting box includes a first and second dust collecting spaces for collecting foreign objects. The filter is disposed in the inside of the dust collecting space to primarily filter foreign objects during operation of a cyclone. The flow guide unit guides airflow and has small cyclones integrally formed therein, for secondarily filtering the foreign objects in air. The exhaust guider guides airflow and has a plurality of discharge holes through which air filtered by the small cyclone flows. The upper cover is disposed on the upper side of the exhaust guider.

A dust collection unit for a vacuum cleaner includes a first filtering chamber filtering foreign objects using a cyclone airflow, a separation plate defining a top surface of the first filtering chamber, a filter having a diameter that is reduced as it goes downward in response to airflow rate variation in the first filtering chamber, and a blocking member provided under the filter to prevent the foreign objects filtered in the first filtering chamber from flying.

An inductive wireless power transfer system comprises a transmitter configured to generate an electromagnetic field to a coupling region for providing energy transfer to a wireless power receiving apparatus. The transmitter includes control logic configured to determine a power component of the transmitter, and determine a presence of a foreign object within the coupling region in response to a comparison of the power component and a desired threshold for the power component. Related inductive methods for detecting a foreign object in an inductive wireless power transfer coupling region of an inductive wireless power transfer system and operating a sleep mode of a wireless power transmitter are disclosed.

Provided is a dust collection unit for a vacuum cleaner that can provide an improved collection efficiency, a reduced reduce, and a good outer appearance. The dust collection unit includes: a first filtering chamber for filtering first foreign objects; a plurality of second filtering chambers formed along an outer circumference of the first filtering chamber to receive air passed through the first filtering chamber and filter second foreign objects by using cyclone airflow, the second foreign objects being smaller than the first foreign objects; an air intake hole through which air is introduced into the second filtering chambers; at least one air introduction guide extended outward from the air intake hole to guide a flow of air introduced into the second filtering chamber; and a storing chamber formed under the filtering chamber.

An intelligent video / audio observation and identification database system may define a security zone or group of zones. The system may identify vehicles and individuals entering or exiting the zone through image recognition of the vehicle or individual as compared to prerecorded information stored in a database. The system may alert security personnel as to warrants or other information discovered pertaining to the recognized vehicle or individual resulting from a database search. The system may compare images of a suspect vehicle, such as an undercarriage image, to standard vehicle images stored in the database and alert security personnel as to potential vehicle overloading or foreign objects detected, such as potential bombs. The system may further learn the standard times and locations of vehicles or individuals tracked by the system and alert security personnel upon deviation from standard activity.

The invention discloses a mobile terminal and an input control method for a touch panel. The method comprises the following steps of: according to the selection of a user, displaying a designated input control on the touch panel; sensing the distance between the control and a foreign object, and amplifying or highlighting a display image of the control when the distance close to the control is smaller than or equal to a preset threshold value is judged; and executing corresponding operation according to the touch selection of the user on the amplified or highlighted control. By using the method, at the moment when a finger is close to the touch panel, a virtual key area, an application icon, a menu or a project pointed by the finger is amplified to enlarge the area of a character, the application icon, the menu or the project in the area pointed by the finger so as to facilitate the selection of the user, ensure the accuracy, greatly improve the speed of inputting characters, keep the attractiveness of a user interface (UI) and reduce the loss of the touch panel at the same time.

A dust collection assembly of a vacuum cleaner is provided. The dust collection assembly includes a dust collecting box, a filter, a flow guide unit, an exhaust guider, and an upper cover. The dust collecting box and the flow guide unit are integrally formed in a single body. The dust collecting box includes a first and second dust collecting spaces for collecting foreign objects. The filter is disposed in the inside of the dust collecting space to primarily filter foreign objects during operation of a cyclone. The flow guide unit guides airflow and has small cyclones integrally formed therein, for secondarily filtering the foreign objects in air. The exhaust guider guides airflow and has a plurality of discharge holes through which air filtered by the small cyclone flows. The upper cover is disposed on the upper side of the exhaust guider.

A contactless power supplying system, which excites a primary coil of a power supplying device to generate an induced electromotive force at a secondary coil of an appliance arranged on the device and supply the induced electromotive force to a load of the appliance, includes a metal foreign object detection device. The metal foreign object detection device includes an antenna coil, an oscillation circuit, and a detection circuit. The oscillation circuit includes a component having a design value that generates oscillation in a range of oscillation conditions from immediately after the oscillation circuit starts to generate oscillation to just before a stable and continuous oscillation condition. The detection circuit detects a suspension of the oscillation or an attenuation in amplitude of the oscillation based on a change in an electric characteristic of the antenna coil caused by a metal foreign object on the power supplying device.

A system for providing an adaptive antenna system in a mobile communications device is disclosed. An array of antenna elements is provided. A sensing component is disposed along a surface of the mobile communications device, proximal to the array of antenna elements. A processor component is communicatively coupled to the sensing component. An implementation element is communicatively coupled to the processor component, and to the array of antenna elements. The sensor component generates data characterizing the proximity of a foreign object to the array of antenna elements; which the processing component uses to determine a configuration for the array of antenna elements. The implementation element modifies the array of antenna elements, responsive to the configuration determined by the processor component.

A retrieval snare for entrapping and retaining a foreign object located in a body and a method for manufacturing of the snare are provided. The snare comprises a structure having a proximal portion and a distal portion and includes a plurality of filaments. The filaments extend from an end of the proximal portion towards the distal portion and return to the end of the proximal portion to form a plurality of loops. The loops are not interconnected at the distal portion, but each side of each loop are connected to a side of an adjacent loop in the proximal portion at more than one point, thereby providing structural rigidity and dilatation ability to the snare.

A system and method to detect a foreign object proximate to a source resonator that is part of a wireless energy transfer system. The wireless energy transfer system may be one used to wirelessly charge the batteries of an electric vehicle. Data from a visible light camera and a multiple zone temperature sensor are combined or fused to determine whether a foreign object, such a metallic object or an animal, is in the vicinity of, or in close proximity to, a source resonator. The system controls an electric current provided to the source resonator based on whether a foreign object is detected to reduce or inhibit energy emitted by the source resonator. The visible light camera may be a monochrome or color camera and the temperature sensor may be an infrared camera or a thermopile array.

An apparatus for detecting a presence of an object is provided. The apparatus includes an inductive sensing coil that is configurable to generate a first magnetic field. The inductive sensing coil is configured to have an electrical characteristic that is detectable when generating the first magnetic field. The electrical characteristic is configured to vary as a function of a second time-varying magnetic field simultaneously applied to the object. The apparatus comprises a controller configured to detect a change in the electrical characteristic and determine a presence of the object based on the detected change in the electrical characteristic. The electrical characteristic comprises one or more of an equivalent resistance, an equivalent inductance, an equivalent impedance, and an impulse response of the inductive sensing coil. The object comprises one or more of a ferromagnetic object, a metallic film and a metallic foil.

A detector, that prevents erroneous detection of a foreign object caught in a window glass when the engine of a vehicle is being operated and when the engine is stopped using a relatively simple control method. The detector includes a pulse sensor for detecting rotational speed of a motor. A microcomputer calculates a cycle difference sum based on the rotational speed of the motor. The microcomputer compares the cycle difference sum with a obstruction determination threshold to determine whether a foreign object has been caught. The microcomputer detects whether the engine is stopped. When detecting that the engine is stopped, the microcomputer changes the obstruction determination threshold so that the probability of the microcomputer determining that a foreign object has been caught is lower than that when the engine is being operated.

A computer-implemented method in one example calls for receiving a physical object at a controlled-access facility such as an airport; scanning the object to capture identifying information of the object based on intrinsic properties of the object, without specific need of any label, tag, or other extrinsic proxy that may be attached to the item; and inducting the object into a reference database system by storing a record in the reference database system that includes the feature vector. A tracking system provides substantially continuous position and identity information of the object, and detects the introduction of any foreign object into the system, to improve security, and avoid lost and delayed items such as airline passenger bags. The tracking system may utilize networked tracking units, each unit comprising scanners and a local processor to realize various object tracking and related functions.

An adjustable tamper-resistant overhead mounting system for a projector. The system includes brackets attachable to the projector and a suspension member attached to an overhead structure. At least one tamper resistant fastener is used at each connection of the brackets, the projector and the suspension member, to deter theft and tampering. The arrangement of the brackets may enable easy adjustable positioning of the projector about pitch, roll and yaw axes. The projector may also be enclosed in an enclosure system to protect against contact by foreign objects. The enclosure is adapted to be installable without removing the projector or otherwise disturbing the mounting system.

A method for controlling a power transmission in a wireless power transmission apparatus, and a power transmission apparatus thereof. The method includes detecting via an object detecting sensor whether a foreign object is placed on a charging position of the wireless power transmission apparatus during a wireless charging; calculating a power loss of the wireless charging by a controller of the wireless power transmission apparatus if the foreign object is detected by the object detecting sensor; and stopping the wireless charging if the power loss is over a reference value.

A dust collection unit for a vacuum cleaner includes a first filtering chamber filtering foreign objects using a cyclone airflow, a separation plate defining a top surface of the first filtering chamber, a filter having a diameter that is reduced as it goes downward in response to airflow rate variation in the first filtering chamber, and a blocking member provided under the filter to prevent the foreign objects filtered in the first filtering chamber from flying.

A dust collection unit for a vacuum cleaner includes a first dust collection part for filtering foreign objects in air, a second dust collection part for filtering foreign objects in the air that has passed through the first dust collection part, and a dust collection container having first and second dust collection chambers that correspond to the first and second dust collection parts, respectively. The first and second dust collection chambers store the foreign objects filtered by the respectively first and second dust collection parts in a state where parts of the respective first and second dust collection parts are received in the respective first and second dust collection chambers and the first and second dust collection chambers are provided in a line.

A method and device for safeguarding a hazardous working area includes a camera system for generating successive 3-D images of the working area, and an evaluation unit comprising a fail-safe foreign object detector, a classifier, a person tracker and a comparator. The foreign object detector generates a first signal comprising a first item of position information, representative of the position of a foreign object in the protection zone. The classifier attempts to identify the foreign object as a person. The person tracker tracks an identified person using a series of current 3-D images and, after each new 3-D image, determines a second item of position information representing the current position of the identified person. If the position of the foreign object according to the first item of position information and the position of the identified person are different from one another, a control signal for stopping the machine is generated.

A planar optical platform for generating a Raman signal from a foreign object comprises an input region and an output region, for receiving and extracting optical radiation, optically coupled to a plasmonic band structure region. The plasmonic band structure region comprises a layer of a first material, having a first refractive index, patterned with an array of sub-regions of a second material, having a second refractive index, wherein a side-wall of each sub-region is coated with a metallodielectric layer. The array of sub-regions gives rise to a plasmonic band structure and, in use, each sub-region confines a plasmon resonance excited by optical radiation coupled into the plasmonic band structure region, which gives rise to a Raman signal from a foreign object placed proximate the plasmonic band structure region. The platform may be incorporated into a spectroscopic measurement system and is particularly useful for surface-enhanced Raman spectroscopy of analyte molecules.

Methods for accumulating, recruiting and retrieving stem cells from a body cavity space of an adult mammal are disclosed, in addition to compositions and cells in accordance with the present invention. In accordance with another aspect of the present invention, a method of obtaining a new source of stem cells is provided by implanting a foreign object in a body cavity space of a mammal and collecting those stem cells resulting from implantation. Further in accordance with the present invention, a method for providing to a subject in need thereof one or more stem cells of the present invention is identified by retrieving stem cells for a body cavity space of a mammal after implanting a foreign object, manipulating the stem cells and introducing the stem cells into the subject in need thereof.

A tamper resistant assembly provides tamper resistance to an electrical receptacle. The tamper resistant assembly includes a base member having first and second grooves. Each groove has a first portion and a second portion connected to the first portion. The first portion is substantially perpendicular to a rear wall of the member and the second portion forms an angle with the first portion. A shutter member is slidably and pivotally connected to the base member for movement between open and closed positions. First and second protrusions extend outwardly from the shutter member and are slidably and pivotally received in the first and second grooves, respectively, in the base member. The first and second protrusions are disposed in the first portions of the grooves when the shutter member is in the closed position and prevent lateral sliding movement of the shutter member to prevent insertion of a foreign object past the shutter member, and in the second portions when the shutter member is in the open position by allowing lateral sliding of the shutter member. The first portions prevent lateral movement of the shutter member and allow pivoting movement of the shutter member to positions preventing insertion of a foreign object past the shutter member.

An apparatus and method for detecting a foreign object in a wireless power transmitting system are provided. In a case in which a foreign object is not detected prior to charging, an attempt to detect a foreign object detection during charging is performed, and when a foreign object is not detected while a power signal is being received, power is limited based on a temperature sensor.

In an example of a system, power is transferred from a transmission coil to a reception coil by electromagnetic induction. A detecting unit calculates a difference between a standard value and a measured value, detects presence of a metallic foreign object on the transmission coil based on the difference, and outputs a signal when the metallic foreign object is detected. The standard value is obtained by supplying electrical power to the transmission coil when a metallic foreign object is absent on the transmission coil. The measured value is obtained by supplying electrical power to the transmission coil. If PIN0 represents input power of the transmission coil, PL0 represents output power of the reception coil, Pc1 represents copper loss of the transmission coil, and Pc2, represents copper loss of the reception coil, the detecting unit uses a value expressed by (PIN0-PL0-Pc1-Pc2) as the standard value and the measured value.