50results about How to "Minimizing detection" patented technology

The invention relates to sewable tamper detection elements for radio frequency identification devices, and to radio frequency identification devices with such tamper detection elements. The devices can be sewn into a seam of a garment so that the tamper detection element is partially inside the garment, e.g. as part of a care label. This makes removing the device difficult without breaking the tamper detection element, and thereby shoplifting attempts can be more reliably noticed. For this purpose, the tamper detection element is formed so that sewing through it does not break the element. The radio frequency identification device may be formed asymmetric so that the tamper detection element is on a different side from the antenna elements with respect to the chip. In this manner, the disturbance from the tamper detection element to the antenna can be minimized. The tamper detection element may be formed so that it contains a transparent opening on which text can be printed.

Systems and methods for inspecting a wafer are provided. One system includes an illumination subsystem configured to illuminate the wafer; a collection subsystem configured to collect light scattered from the wafer and to preserve the polarization of the scattered light; an optical element configured to separate the scattered light collected in different segments of the collection numerical aperture of the collection subsystem, where the optical element is positioned at a Fourier plane or a conjugate of the Fourier plane of the collection subsystem; a polarizing element configured to separate the scattered light in one of the different segments into different portions of the scattered light based on polarization; and a detector configured to detect one of the different. portions of the scattered light and to generate output responsive to the detected light, which is used to detect defects on the wafer.

An imaging system is disclosed for imaging an object. More specifically, an improvement is disclosed in an imaging system enabling depth sectioned fluorescence imaging in a turbid medium, such as human or animal tissue, in such a manner as to substantially minimize the excitation radiation from reaching the detection beam path. The imaging system includes an arrangement of the excitation radiation source such that the optical axis of the source is inclined relative to the optical axis of the camera, the optical plane of the source and the optical plane of the object are subject to a Scheimpflug condition provided by projection optics, and the angle of inclination of the source is selected such that the excitation radiation incident upon the object is reflected in such a way that substantially minimizes excitation radiation from reaching the detection beam path.

A feed forward power amplifier is disclosed which utilizes three signal cancellation loops. Loop 1 includes a main amplifier and is used to derive a carrier cancelled sample of the main amplifier output. Loop 2 includes an error amplifier used to amplify the carrier cancelled signal derived from Loop 1 operation in order to cancel distortion products generated due to the nonlinear nature of the main amplifier. Loop 2 also utilizes a very short Loop 2 delay line. A significant efficiency gain is provided due to reduced output power losses associated with the Loop 2 delay line. Lower output losses also results in lower distortion levels produced by the main amplifier. This, in turn, reduces the size and performance requirements placed on the error amplifier. A smaller and more efficient error amplifier is employed resulting in further amplifier system efficiency improvement. A spurious signal detector for out-of-band distortion detection and an associated microcontroller for Loop 1 and Loop 2 control are also provided. A third signal cancellation loop is utilized to sample the amplifier output and reduce the carrier level of the signals sampled at the output of the amplifier before providing the sampled output to the spurious signal detector. By significantly reducing the carrier power level relative to distortion power levels a cost effective spurious signal detector can be utilized. This also provides a faster conversion time in Loop 2 cancellation and enhanced cancellation of out-of-band distortion products due to a greater useful dynamic range available for the DSP employed in the spurious signal detector.

A radiation detection apparatus include a sensor substrate having a pixel array and a connection terminal connected to the pixel array on a first surface; and a scintillator layer that is arranged on the first surface side; a circuit board that is arranged on a side of the scintillator layer that is opposite to a side facing the sensor substrate; and a connection portion configured to connect the connection terminal to the circuit board. The scintillator layer is arranged so as to cover the pixel array but expose the connection terminal. The circuit board and the connection portion are arranged in locations where they do not protrude from the outer edge of the first surface of the sensor substrate.

A “full body” turkey decoy having one or more of a movable head, movable neck, or movable tail is controlled remotely by the operator to produce a life-like animation of the decoy. The movable tail raises and lowers and the tail feathers fan out in a display; the movable head bobs to the ground and the movable neck arches and straightens, simulating realistic activity. The movable components of the decoy are controlled remotely by means of one or more pull cords, with movement of the components achieved by the use of springs and counterweights.

There is provided a feed-forward amplifier which enables a predistortion circuit to obtain sufficient distortion compensation effects even if ambient temperature or the like changes. The feed-forward amplifier includes a variable attenuator for controlling the amount of attenuation of a signal input to a main amplifier, a variable attenuator for controlling the amount of attenuation to prevent deterioration of distortion compensation due to a change in the ambient temperature of the main amplifier, a variable attenuator for controlling the amount of attenuation of a signal input to an auxiliary amplifier, and a variable attenuator for controlling the amount of attenuation to prevent deterioration of distortion compensation due to a change in the ambient temperature of the auxiliary amplifier, wherein a control circuit controls the variable attenuators to reduce the amount of attenuation according to the reduced gain of the main amplifier and the reduced gain of the auxiliary amplifier, and a control circuit controls the variable attenuators to optimize the amount of attenuation according to the ambient temperature of the main amplifier and the ambient temperature of the auxiliary amplifier.

An electrophysiology catheter with a distal electrode assembly having covered spine carrying a plurality of microelectrodes. The position of the microelectrodes on each spine is staggered relative to microelectrodes on adjacent spines so as to minimize the risk of electrodes on adjacent spines touching each other during use of the catheter. The staggered electrode configuration provides the distal electrode assembly with a greater effective contact surface because the effective concentric electrode arrays is increased or at least doubled.

Systems and methods for selectively extracting hydrogen gas dissolved in oil are provided. In one embodiment, a system includes a selectively permeable membrane provided at a point of contact between oil and a sensor chamber. The selectively permeable membrane has a hydrogen specificity and a thickness selected to minimize detection of further gasses dissolved in the oil by a hydrogen gas sensor cross-sensitive to the further gasses. The selectively permeable membrane can include polyimide. The further gasses include carbon monoxide, acetylene, and ethylene. The system can include a further membrane and a porous metal disc. The porous metal disc is bound to the selectively permeable membrane by using the further membrane as an adhesive layer and by applying pressure and temperature. The porous metal disc supports the selectively permeable membrane and the further membrane against pressure of the oil when exposed to a vacuum. The further membrane includes fluorohydrocarbons.

An electrophysiologic catheter with a distal electrode assembly carrying very closely-spaced bipole microelectrodes on a plurality of divergent spines that can flexibly spread over tissue surface area minimized detection of undesirable noise, including far-field signals. Each spine has a flexible microelectrode panel having a substrate, at least one pair of microelectrodes, a trace for each microelectrode, and a soldering pad. Adjacent microelectrodes of a bipole pair are separated by a space gap distance ranging between about 50-300 microns. Each microelectrode may have a width of about 200 or 300 microns.

A method and device of measuring external flight characteristics of aircraft, including fixed-wing, rotorcraft, and Unmanned Aerial Vehicles, utilizes one or more floating platforms, each supporting one or more measuring instruments. The floating platform may be a hot air balloon, dirigible or other quasi-neutrally-buoyant airship, untethered to avoid interference between the aircraft being measured and any tether. Measurement of rotorcraft acoustic characteristics is particularly enhanced by permitting measurements that account for directionality of noise sources and are not affected by wind or reflected noise.

An electrophysiology catheter with a distal electrode assembly having covered spine carrying a plurality of microelectrodes. One or more spines have preformed configurations including at least a first portion with a first curvature and a second portion with a second curvature, and may include a linear portion. The linear portion may be between the first and second portions. The linear portion may be distal of the first and second portions. One or more spines have a narrower portion so that different portions of the spine can have different flexibility with a degree of independence in flexibility from adjacent portions.