36results about How to "Difficult to detect" patented technology

In image-checking equipment, a detector reads a line-shaped check image formed on a sheet and acquires image data on the check image. A controller calculates an edge blur in a rising edge and a falling edge of the image data, calculates a line width of the check image. The controller refers to a correction table with the measured values of the edge blur and the line width of the check image, and acquires a corrected line width value based on the correction table to obtain the real line width of the check image.

An apparatus and method for verifying capture by a selected pacing electrode in a multi-site pacemaker. A switching circuit switches the input of an evoked response sensing channel to an unselected electrode. A pacing pulse is then output by the selected electrode, and the presence or absence of capture is determined from the output of the evoked response sensing channel. In one embodiment, a backup pacing pulse is output by an unselected electrode if a loss of capture is detected.

The invention described herein represents a significant improvement for the concealment of objects and people. Thousands of light receiving segmented pixels and sending segmented pixels are affixed to the surface of the object to be concealed. Each receiving segmented pixel receives colored light from the background of the object. Each receiving segmented pixel has a lens such that the light incident upon it is segmented to form focal points along a focal curve (or plane) according to the light's incident trajectory. In a first embodiment, this incident light is channeled by fiber optics to the side of the object which is opposite to each respective incident light segment. The light which was incident on a first side of the object traveling at a series of respective trajectories is thus redirected and exits on at least one second side of the object according to its original incident trajectory. In this manor, incident light is redirected as exiting light that mimics the incident light's trajectory, wavelength, color, and intensity such that an observer can “see through” the object to the object's background. In a second embodiment, this incident light is segmented according to trajectory, and detected electronically by photo diodes. It is then electronically reproduced on at least one second side of the object by arrayed LEDs. In this manor, incident light is reproduced as exiting light which mimics trajectory, wavelength, color, and intensity such that an observer can “see through” the object to the background. In both embodiments, this process is repeated many times, in segmented pixel arrays, such that an observer looking at the object from any perspective actually “sees the background” of the object corresponding to the observer's perspective. The object having thus been rendered “invisible” to the observer.

System and method for driving a cold-cathode fluorescent lamp. The system includes a control subsystem configured to generate one or more control signals, and a power supply subsystem configured to receive the one or more control signals and a DC input voltage, convert the DC input voltage to an AC output voltage, and send the AC output voltage to a cold-cathode fluorescent lamp. If the DC input voltage is lower than a predetermined threshold, the system for driving the cold-cathode fluorescent lamp is turned off in response to the one or more control signals.

In signal processing of the present disclosure, an abnormal correction value as a correction value for correcting a quadrature error that occurs in quadrature modulation is output in malfunction determining processing, and a normal correction value as the correction value is output in calibration processing. The presence or absence of malfunction in the signal processing is determined on the basis of the levels of carrier leak and image leak of the quadrature modulated signal.

The invention discloses a method and primers for detecting the mutation of a dyskeratosis congenita (DC)-related gene WRAP 53. The primers comprise 13 pairs of primers for amplifying an all-exon sequence of the gene WRAP 53, and a sequencing primer. The method can rapidly detect the all-exon of the gene WRAP 53 and the relevant mutation by adopting a Sanger sequencing technique. After the method and the primers are used, the detection result is accurate; the method and the primers have important reference significance for realizing the early diagnosis of the DC, reducing misdiagnosis and missed diagnosis and carrying out treatment on the DC.

A method for rapidly calculating gas concentration of distillation column comprises the following steps: firstly, obtaining the pressure and temperature of a rectification section and a stripping section; obtaining the gas concentration corresponding to the pressure and temperature by means of look-up or measurement; constructing a multivariate regression model of the pressure and temperature withrespect to the gas concentration; calculating an estimated value of the regression parameter by using least square method; and substituting the estimated value of the regression parameters into a multivariate regression model, so as to obtain a calculation formula of the gas concentration.

The invention relates to the field of analytical chemistry, in particular to a method for detecting the residual 4-dimethylaminopyridine on a device. The method is a high performance liquid chromatography and comprises the following steps of sampling, preparing a blank solution, a test solution and a reference solution, and detecting.