205 results about "Active sensing" patented technology

Communication is an important issue in man-to-robot interaction. Signs can be used to interact with machines by providing user instructions or commands. Embodiment of the present invention include human detection, human body parts detection, hand shape analysis, trajectory analysis, orientation determination, gesture matching, and the like. Many types of shapes and gestures are recognized in a non-intrusive manner based on computer vision. A number of applications become feasible by this sign-understanding technology, including remote control of home devices, mouse-less (and touch-less) operation of computer consoles, gaming, and man-robot communication to give instructions among others. Active sensing hardware is used to capture a stream of depth images at a video rate, which is consequently analyzed for information extraction.

Communication is an important issue in man-to-robot interaction. Signs can be used to interact with machines by providing user instructions or commands. Embodiment of the present invention include human detection, human body parts detection, hand shape analysis, trajectory analysis, orientation determination, gesture matching, and the like. Many types of shapes and gestures are recognized in a non-intrusive manner based on computer vision. A number of applications become feasible by this sign-understanding technology, including remote control of home devices, mouse-less (and touch-less) operation of computer consoles, gaming, and man-robot communication to give instructions among others. Active sensing hardware is used to capture a stream of depth images at a video rate, which is consequently analyzed for information extraction.

A sensor system having a sharply defined zone of active sensing comprising a compound antenna system comprising an antenna structure disposed in relation to a shield structure and spaced from the shield structure, the shield structure having an open aperture in front of the antenna structure in the direction of a lobe of sensitivity of the antenna structure. In various embodiments, the shield structure may be layered on the inside between the antenna and the shield structure with an RF absorbing material. The aperture may be formed in part by adjustable panels and the antenna spacing from the aperture may be adjustable by adjusting an antenna mounting position within the shield. The compound antenna system may be coupled to a receiver having a threshold response based on the compound antenna system response characteristic.

A capacitive encoder includes a signal-balanced shield electrode configuration that does not require electrical ground connection or active sensing and control in order to maintain the shield electrode(s) at a sufficiently constant voltage during capacitive position measurements. The shield electrode configuration is positioned in a capacitive coupling gap between transmitter electrodes and receiver electrodes during operation. The shield electrode configuration is patterned in a manner that complements the layout of the transmitter electrodes, such that the shield electrode configuration inherently floats at a nominally constant electrical potential when coupled to the signals present on the transmitter electrodes. The resulting capacitive encoder is thus more economical to build, convenient to install, and reliable during operation than capacitive encoders which use an electrical connection, compensation drive circuitry, or grounding in order to control the potential of a shield member that operates at a potential that is not inherently constant.

An active sensing and switching device for use in controlling current to a load, comprising a controller means (U1) for disconnecting the load from a power source by providing a switch-open control signal based on a signal indicating a sensed value of electrical current to the load, characterized in that the controller means (U1) determines a nominal value for the electrical current to the load based on monitoring the signal indicating the sensed value of electrical current to the load. A load control system is also provided, including a single ASSD adapted to receive signals indicating sensed values of electrical current to a plurality of respective loads, and further comprising a plurality of load control modules adapted so as to be disposed in proximity to respective loads or a main power line, wherein the load control modules provide respective signals indicating sensed values of electrical currents to the respective loads.

A system, method, and computer readable medium for the proactive detection of malware in operating systems that receive application programming interface (API) calls is provided. A virtual operating environment for simulating the execution of programs and determining if the programs are malware is created. The virtual operating environment confines potential malware so that the systems of the host operating environment will not be adversely effected. During simulation, a behavior signature is generated based on the API calls issued by potential malware. The behavior signature is suitable for analysis to determine whether the simulated executable is malware.

The device according to the invention provides a non-contacting temperature sensing device incorporating micro-bolometric detectors as the suitable infrared sensors for automotive applications. A first and second infrared sensors each include an active infrared sensing element and a temperature drift compensating element. A current bias is applied to the active infrared sensing element as well as to the temperature drift compensating element, which is identical in structure with the active infrared sensing element, and the voltage outputs of these two elements pass through a differential amplifier. The fluctuation in the substrate temperature or the ambient temperature affects the active sensing element and the compensating element in the same way, thus it is cancelled out. Instead of using one spectral band of the infrared radiation, as in the prior art, two spectral bands are used resulting in a first and second signal generated by the first and second infrared sensors. A ratio of the first and second signals is obtained. The ratio of the signals is emissivity independent, so that the device of the present invention provides a more accurate measurement of temperature. The need to compensate for window contamination is also eliminated by this two band approach. The filtering elements for the two bands can be multi-layer thin film filters either coated on flat windows or on diffractive micro-lenses. The use of diffractive micro-lenses further reduces the size of the device, and eliminates the need for a separate optical lens.

A vehicle security system for use in a predefined area such as a car park includes an array of sensors (9) for receiving a vehicle alarm signal transmitted by radio frequency from a system-subscribing vehicle fitted with a transceiver (22) in the event of attempted vehicle tampering or removal. A control centre (12) receives alarm signals and communicates them to a user as an alarm message. Detection of radio frequency signal jamming or attempted jamming is achieved in one embodiment with noise detectors (39, 139) actively detecting jamming noise or alternatively an arrangement of transmitters and receivers using test transmissions therebetween, whereby transmission failure indicates jamming.

A handheld writing instrument achieves digital positioning capabilities in a compact form factor by incorporating passive fiducials such as RFID tags into the body of the writing instrument. By positioning the fiducials in known locations relative to the writing tip, an active sensing system outside of the pen can remotely stimulate the passive fiducials and gather distance and / or position data for locating the writing tip.

The invention provides a moving target active sensing method and device based on multi-camera cooperation. The method comprises the steps of carrying out calibration according to a master camera imageand a slave camera image and establishing a position mapping relationship; monitoring moving targets in the master camera image in real time, thereby obtaining a candidate target set; selecting candidate targets according to target importance and selecting a slave camera for tracking photographing according to the position mapping relationship; calculating a lens azimuth angle and zoom times, adjusting the slave camera to align with candidate target areas, and obtaining high-quality images of the candidate targets; and analyzing classes of the candidate targets according to the high-quality images, confirming the targets belonging to preset types as interested targets, and placing the interested targets into an interested target set. According to the device and the method, through utilization of the position corresponding relationship between a master camera and the slave camera, the slave camera is called to obtain the high-quality images of the candidate targets in the master cameraimage, target image features are extracted, the target classes are confirmed, and the targets are confirmed actively.

The inventive RFID Environmental Monitoring System (RFID_EMS) includes an RFID-based Environmental Monitor and Energy Management Logic for reducing energy consumption in active RFID tags used for long-term active sensing of storage and transit conditions of shipping containers. The RFID-based Environmental Monitor consists of an active RFID tag containing an RF transponder, microcontroller, sensors and associated interface circuitry. The Energy Management Logic provides hardware and software which work together, and consists of executable software or microcontroller logic that monitors and regulates energy use by an RFID tag and associated sensors, and may control the state of specialized peripheral circuits on the tag. By reading the RFID_EMS tag, the invention enables the determination of the condition of precision equipment prior to use, including equipment that requires high readiness after long periods of transit and / or storage.

The presently disclosed method and system includes a network of computer devices, sensors, and actuators operating in concert with application software to actively detect, identify, and localize threats and generate real-time countermeasures designed to delay and / or mitigate damage that may be caused by the threats. Application software, in the form of automated reasoning and logic control, initiates preparatory and countermeasure sequences automatically, which may be used by users or automatically executed by the system to at least delay an attack to a physical asset / area by adversaries with use of non-lethal actuators. Learned scenarios are generated and continuously adapted via feedback loops and decision rules to provide preparatory and countermeasure sequences that maximize results with minimal expenditure of assets.

Apparatus, method and program product may detect an attempt to tamper with a microchip by detecting an unacceptable alteration in a measured capacitance associated with capacitance structures proximate the backside of a microchip. The capacitance structures typically comprise metallic shapes and may connect using through-silicon vias to active sensing circuitry within the microchip. In response to the sensed change, a shutdown, spoofing, self-destruct or other defensive action may be initiated to protect security sensitive circuitry of the microchip.

A ring electrode design that produces a uniform mass sensitivity distribution across a TSM device is presented. A new technique and apparatus to measure this mass sensitivity distribution is also presented. Novel electrode geometries on thickness shear mode (TSM) quartz resonators achieve radial uniformity of mass sensitivity, how receptive the device is to mass loadings, and high frequency stability across the active sensing area of the sensor device. The device allows for absolute mass measurement down to the nanogram level. Fabricated devices utilizing model predictions were tested using this apparatus, and good agreement between theory and experiment is found.

Printed resistive-based sensors and transducers comprising a thin, electronically “active” sensing layer within a dielectric and / or metallic layered structure are provided. The electronic resistance of the active sensing layer is measured during a change in the sensor environment. By utilizing a multi-layered architecture around the active sensing layer, the electronic signal of the sensing element can be improved. By carefully selecting the architecture and materials that surround the active sensing layer, the sensitivity, stability, and selectivity of the sensor to detect changes in the environment are improved. This design allows for a number of specific application areas for environmental sensing.

The invention discloses a workshop manufacturing process-oriented active sensing and anomaly analysis method of real-time generating performance and aims to solve the technical problem that the prior art is poor in practicality. According to the technical scheme, the internet of things technique is applied to key manufacturing resources to generate real-time sensing of multi-source manufacturing information and to establish relation between key manufacturing performance and each piece of dispersed real-time manufacturing data. An anomaly assessment rule base is established for production process anomalies. When the key manufacturing performance of a manufacturing process is sensed, value adding is performed on the basis of a decision tree method; thus production managers are better assisted in timely and accurately acquiring production anomalies and their cause, the anomaly information is transmitted to the production mangers in time, anomaly checking time is shortened, the influence of the anomalies upon the production process is reduced, the stable and reliable production process is guaranteed, and practicality is high.

Embodiments described herein include a method and apparatus for capacitive sensing in input devices integrated with a display device. In one embodiment, a processing system for a display device comprising an integrated capacitive sensing device is provided that includes a display driver module, a transmitter module, and a receiver module. The display driver and transmitter modules are configured to operate in a display update mode and a sleep mode. The receiver module is configured to, while operating in a doze mode, communicate with and trigger the transmitter module to enter the active sensing mode while the display driver module remains in the sleep mode when presence of an object is detected based on the resulting signals.

The present invention is a high resolution, multi-function, conformal electronics device generally having a flexible and stretchable, high-density electrode array, integrated with a catheter (e.g., balloon catheter) for mapping, ablating, pacing and sensing of cardia tissue associated with heart arrhythmias. The active sensing electrode array can acquire diagnostic information including electrical (e.g., electrograms), mechanical (e.g., strain measurements), impedance (e.g., resistance), metabolic (e.g., pH or NADH measurement) from the underlying heart tissue surface with which it is in contact. The electrode array may be designed to be of various sizes and shapes to conform to the targeted cardiac tissue architecture (e.g. atrial, ventricle, right ventricular outflow tract, coronary sinus, pulmonary veins, etc.) corresponding to the specific type of cardiac arrhythmia. The present invention can precisely locate the source of arrhythmia as described above and deliver therapy from the same electrode array. This is achieved using a capacitive sensing electrode array that can not only monitor but also deliver electrical stimulation.

A driving service active sensing system and method in an Internet of Vehicles environment in the field of road traffic safety. A sensor device and an intelligent vehicle-mounted terminal arranged on a vehicle and connected to each other. The intelligent vehicle-mounted terminal communicates with roadside equipment in 4G and DSRC modes, and communicates with a driving service information processing center in 4G mode. The roadside equipment communicates with the driving service information processing center in 4G mode. The roadside equipment is provided on both sides of a road. The sensor device outputs obtained vehicle traveling information to the intelligent vehicle-mounted terminal, which processes and integrates the received vehicle traveling information and then transfers integrated information to the roadside equipment and the driving service information processing center. A driving service cloud computing platform processes the integrated information and outputs driving service information to the roadside equipment and the intelligent vehicle-mounted terminal.

A system that monitors electromagnetic interference (EMI) signals to facilitate proactive fault monitoring in a computer system is presented. During operation, the system receives EMI signals from one or more antennas located in close proximity to the computer system. The system then analyzes the received signals to proactively detect anomalies during operation of the computer system.

A method of recovering audio signals and corresponding apparatus according to an embodiment of the present invention using video or other sequence of images enables recovery of sound that causes vibrations of a surface. An embodiment method includes combining representations of local motions of a surface to produce a global motion signal of the surface. The local motions are captured in a series of images of features of the surface, and the global motion signal represents a sound within an environment in which the surface is located. Some embodiments compare representations of local motions of a surface to determine which motions are in-phase or out-of-phase with each other, enabling visualization of surface vibrational modes. Embodiments are passive, as compared to other forms of remote audio recovery that employ active sensing, such as laser microphone systems. Example applications for the embodiments include espionage and surveillance.

A radioactive material detection system includes a plurality of radioactive material detection apparatuses and a command center. Each apparatus is disposed in or on a cargo receptacle. Each apparatus includes a wireless transmitter, a radiation sensor, a detection controller and an identification tag. The radiation sensor is configured to detect radiation over a predetermined or commanded period of time. The command center is configured to receive the wirelessly transmitted information directly or indirectly from each of the wireless transmitters of the plurality of radioactive material detection apparatuses. The system is configured to detect fissile or nuclear material that emits radiation. The system is reconfigurable from a passive sensing system to an at least partially active sensing system in the event that the system detects a nuclear anomaly within a cargo receptacle.

The invention discloses a device for obtaining a complex scene multi-mode biology characteristic image. The device comprises an active multi-element imaging unit, a logic control platform and a parallel data calculation platform, wherein the logic control platform is connected to an active multi-element imaging unit and the parallel data platform is connected to the logic control platform; the parallel data calculation platform comprises a multi-element sense data processing system, a biologic characteristic scene sensing and modeling system, a multimoding biologic characteristic active sensing system and an advanced imaging algorithm processing system. Besides, the invention also discloses a method for obtaining the complex scene multi-mode biology characteristic image. The method and the device for obtaining the complex scene multi-mode biology characteristic image can perform multimoding recognition on the biologic characteristics of the multiple users under the complex scene conditions, satisfies the requirement for identity recognition in the complex imaging scene, and realizes the effective obtaining of the multimoding biologic characteristics of the iris, the human face and the grait.

A design of cognitive radio (CR) signal structure which based on the spectral correlation can be used for active sensing. In this signal structure, the known pilots used for the primary users (PUs) are duplicated and reallocated in the CR transmission signal properly. With this CR signal structure, the received signal of spectrum sensors will become correlated on the subcarriers when PU reoccupation occurs while the CR transmission is active, and thus PU activities can easily be detected by computing the spectral correlation function. As compare with the traditional cyclostationary feature detection scheme, this method can enhance the active sensing performance while remaining the service quality of the CR system, achieving better detection performance in the same detection time, reducing sensing time (about 1 / 10 of the traditional sensing time), and still reaching the satisfactory outcome even in the circumstances of low SNR and SINR.

A nanocoaxial sensor includes an outer conductor, an inner conductor, a dielectric material disposed between the outer and inner conductors, a nanocavity sized to allow target species to enter the nanocavity between the outer and inner conductors, and an active sensing element immobilized within the nanocavity on at least one of the inner or outer conductors. The active sensing element is adapted to selectively capture the at least one of the target species.

Various communication systems may benefit from physical layer watermarking. For example, active sensing for dynamic spectrum access may be performed using physical layer watermarking, such as watermarking based on channel effects and / or receiver distortion. A method may include, for example, obtaining an original signal to be transmitted to at least one receiver. The method may also include watermarking the original signal with at least one of authentication data or ancillary data to provide an enhanced signal. The watermarking can include a physical layer watermark. The physical layer watermark can be configured to emulate at least one a channel effect or a receiver distortion. The method can further include transmitting the enhanced signal to the at least one receiver.

The invention discloses a string type fruit distributed visual active sensing method and an application thereof. According to the method, a large-view-field camera is adopted to acquire a large-field-of-view image of a fruit tree, so that large-view-field target sensing is performed, the picking priority of each string type fruit target is obtained, and meanwhile, each picking preparation point ofsecondary sensing is determined; and after a manipulator is driven to reach a picking preparation point, a small-view-field camera moves along with the manipulator, senses and observes string type fruits in a close range, obtains dynamic small-view-field images and realizes active sensing and intelligent picking decision-making of small-view-field targets. The technical problems of insufficient picking operation information decision-making and redundant manipulator operation activities can be reduced, and the picking efficiency of the string type fruits is effectively improved.