Abstract: The present invention discloses an accurate and efficient modeling method for the terahertz branch waveguide directional coupler, which uses mode matching method (MMM) to take into account the effects on the coupler field distribution caused by the branch structure discontinuity, combines odd and even mode analysis method to further simplify the derivation process, and finally obtains a simplified and accurate calculation formula of the coupling degree, which the latter produces a new conclusion that when the work frequency of the branch waveguide directional coupler is determined, the coupling degree thereof is determined by the sum of the branch widths. The modeling method of the present invention has the characteristics of simplicity, which can greatly shorten the modeling time and improve the efficiency of the modeling compared with the traditional modeling method. In addition, the modeling method has the characteristics of universality.

Abstract: Image processing method and device are disclosed. The image processing method is inclusive of a step of obtaining a target image; a step of performing motion estimation on the target image so as to attain motion paths; a step of determining, on the basis of the motion paths, whether there exists a fluctuation meeting a predetermined requirement in the target image; and a step of taking, if there exists a fluctuation meeting the predetermined requirement in the target image, the target image as a reference image. The reference image is utilized to carry out inter frame motion estimation with respect to the respective images acquired.

Abstract: Apparatus and associated methods relate to configuring a circuit to sense current in a low-cost non-precision resistance, calibrating the circuit to correct inaccuracy measured in the sensed current, and measuring with the corrected circuit the precise current sensed in the low-cost non-precision resistance. In an illustrative example, the low-cost non-precision resistance may be a metal trace on a printed circuit board. The circuit may be calibrated, for example, over a range of currents or temperatures, permitting automatic adjustment to a wide range of non-precision resistance parameter values and environmental conditions. In some examples, correcting coefficients may be adapted to compensate for resistance non-linearities, which may include skin effect or self-heating. Some embodiments may verify the calibrated correction over a range of current and temperature.

Abstract: The present invention discloses a crystal coating optical low pass filter, which includes a UV-IR cut-off film, a crystal plate, an ink layer, and an AR film. The UV-IR cut-off film can be replaced with an IR film. By coating the crystal plate with ink having infrared absorbing effect to form an ink layer, the present invention possesses both the birefringence characteristic of the crystal and the effect similar to infrared absorbing glass. Compared with the traditional OLPF using infrared absorbing glass, the thickness of the product is reduced and the situation that the infrared absorb glass is fragile and has a poor resistance to drop is significantly improved. The present invention can be used in smartphones, digital cameras, in-vehicle cameras, security cameras and has a large space of marketing.

Abstract: The present invention discloses a coated narrow-band filter having an absorbent material. Two sides of the substrate are respectively an A-side and a B-side, a cut-off layer is coated or screen printed on the A-side, wherein lights having a wavelength within a first band are allowed to pass through the cut-off layer. The substrate is an absorbent layer, or an absorbent layer is provided on the B-side of the substrate. The absorbent layer is made of an absorbent material, lights having a wavelength within a second band are allowed to pass through the absorbent layer. The first band partially overlaps with the second band. For processing convenience, the coated narrow-band filter having an absorbent material is provided at different angles and with small angle of incidence.

Abstract: Various embodiments of systems and methods for collision-free trajectory planning in human-robot interaction through hand movement prediction from vision are disclosed.

Abstract: The present invention discloses a coated narrow-band filter having an absorbent material. Two sides of the substrate are respectively an A-side and a B-side, a cut-off layer is coated or screen printed on the A-side, wherein lights having a wavelength within a first band are allowed to pass through the cut-off layer. The substrate is an absorbent layer, or an absorbent layer is provided on the B-side of the substrate. The absorbent layer is made of an absorbent material, lights having a wavelength within a second band are allowed to pass through the absorbent layer. The first band partially overlaps with the second band. For processing convenience, the coated narrow-band filter having an absorbent material is provided at different angles and with small angle of incidence.

Abstract: Image processing method and device are disclosed. The image processing method is inclusive of a step of obtaining a target image; a step of performing motion estimation on the target image so as to attain motion paths; a step of determining, on the basis of the motion paths, whether there exists a fluctuation meeting a predetermined requirement in the target image; and a step of taking, if there exists a fluctuation meeting the predetermined requirement in the target image, the target image as a reference image. The reference image is utilized to carry out inter frame motion estimation with respect to the respective images acquired.

Abstract: A screw-free modular design lighting fixture with interchangeable parts includes a lens cover, a round cover, a PCB, and the heat sink that make up the module, as well as a driver, a fastener on the driver, a frame, and a push release mechanism to secure the driver onto the module, then the module onto the frame to form the fixture. The lighting fixture uses push-release, clip on, twist on, click in, slide in, hinge-on, and other screw-free mechanisms to assemble, interchange, and maintain the module, frame, and drivers, in order to change the applications, light distributions, wattages, voltage, and other needs of the fixture.

Abstract: The present invention discloses a crystal coating optical low pass filter, which includes a UV-IR cut-off film, a crystal plate, an ink layer, and an AR film. The UV-IR cut-off film can be replaced with an IR film. By coating the crystal plate with ink having infrared absorbing effect to form an ink layer, the present invention possesses both the birefringence characteristic of the crystal and the effect similar to infrared absorbing glass. Compared with the traditional OLPF using infrared absorbing glass, the thickness of the product is reduced and the situation that the infrared absorb glass is fragile and has a poor resistance to drop is significantly improved. The present invention can be used in smartphones, digital cameras, in-vehicle cameras, security cameras and has a large space of marketing.

Abstract: A reference signal generator used with a switching mode power supply which converts an input voltage to an output voltage. The reference signal generator provides a reference signal consisting of a constant voltage signal and a variable voltage signal which is varying according to a duty cycle of the switching mode power supply during a startup period of the switching mode power supply and is varying according to a ratio of the input voltage at an end of the startup period to the input voltage of real time after the startup period.

Abstract: A reference signal generator used with a switching mode power supply which converts an input voltage to an output voltage. The reference signal generator provides a reference signal consisting of a constant voltage signal and a variable voltage signal which is varying according to a duty cycle of the switching mode power supply during a startup period of the switching mode power supply and is varying according to a ratio of the input voltage at an end of the startup period to the input voltage of real time after the startup period.

Abstract: A Li-ion power cell includes at least two winding cores produced by a winding process. Each of the winding cores has an anode tab and a cathode tab. The anode tabs and the cathode tabs of the respective winding cores are connected in parallel, respectively. The winding core is of cylindrical or diamond shape. The Li-ion power cell further includes a housing, an anode pole and a cathode pole which are disposed on the housing. The anode tabs of the respective winding cores are connected in parallel and then electrically connected to the anode pole, and the cathode tabs of the respective winding cores are connected in parallel and then electrically connected to the cathode pole.

Abstract: An adaptive intra-field algorithm to de-interlace video data uses two line memories to implement a median filter that can use multiple data points on adjacent lines of display. In a median-mode, the filter outputs the median of the input data to create the value for a location on the intermediate line and can decrease image blurring. But if examination of the two adjacent pixels on two adjacent scan lines is small, as in the case of a vertical image line, the filter operates as a line average filter, to avoid creating image artifacts.

Abstract: An adaptive intra-field algorithm to de-interlace video data uses two line memories to implement a median filter that can use multiple data points on adjacent lines of display. In a median-mode, the filter outputs the median of the input data to create the value for a location on the intermediate line and can decrease image blurring. But if examination of the two adjacent pixels on two adjacent scan lines is small, as in the case of a vertical image line, the filter operates as a line average filter, to avoid creating image artifacts.