Abstract: A control method of the electromotor comprises: setting a target alternating axis current based on the rotor angular velocity of the electromotor and a target direct axis current based on the torque of the motor; simultaneously detecting three-phase currents and current rotor position angle of the electromotor; converting the three-phase currents to an actual alternating axis current and an actual direct axis current by Park and Clark conversions; inputting the difference between the target current and the actual current to a current loop, outputting the required direct axis current and the required alternating axis current; determining the three phase voltages according to the required direct axis current and alternating axis current and the angle of the electromotor rotor position; obtaining PWM control waveform through three-phase voltages, wherein said PWM control waveform is configured to control the conversion from direct current to alternating current and drives the electromotor.

Abstract: The present invention discloses a product case for housing an electronic device, wherein the product case comprising a case body; a decoration layer disposed on the case body; a decorating panel; wherein the surface of the decoration layer is configured with a chamber, and the decorating panel is configured to be inlayed inside the chamber. According to the present invention, the product case is configured with the decoration layer, and the decorating panel is configured to be inlayed inside the chamber. Therefore, the design of the electronic device is improved without influencing the decoration layer. Further, the design of the electronic device case may be customized in accordance with the requirement of the consumer.

Abstract: The invention provides a method for preparing a membrane electrode of a fuel cell, comprising the steps of preparing diffusion layers, and superimposing the diffusion layers on a proton exchange membrane having a catalyst layer on each surface, wherein the method for preparing the proton exchange membrane having a catalyst layer on each surface comprises the steps of: filling a catalyst slurry containing a catalyst and a bonding agent between two polymer films, and pressing the polymer films filled with the catalyst slurry to obtain a catalyst layer; and superimposing the catalyst layer on each surface of a proton exchange membrane. The method of the present invention can control the thickness of the catalyst layers by pressing during preparation thereof, therefore, the catalyst layers have an even thickness and surface.

Abstract: A computer-implemented method in connection with a multi-touch detection system is disclosed. The multi-touch detection system includes a touch-sensitive device, a microcontroller coupled to the touch sensitive device, and an electronic application coupled to the microcontroller. The touch-sensitive device has multiple electrically isolated conductive regions. In response to detecting multiple simultaneous contacts a user has with the conductive regions, the touch-sensitive device generates multiple output signals, one signal for each of the multiple simultaneous contacts, and transmits the output signals to the microcontroller. The microcontroller is configured to generate one or more control signals in response to the output signals and transmit the control signals to the electronic application. The electronic application includes a screen displaying multiple human-machine interactive objects.

Abstract: A multi-touch detection system includes a touch-sensitive device, a microcontroller coupled to the touch sensitive device, and an electronic application coupled to the microcontroller. The touch-sensitive device includes multiple electrically isolated conductive regions and the conductive regions are configured to detect multiple contacts from a user simultaneously and generate respective output signals for the multiple user contacts. The microcontroller is configured to receive the output signals from the conductive regions and generate one or more control signals in response to the output signals. The electronic application includes a screen displaying multiple human-machine interactive objects and a signal processor. The signal processor is configured to receive the control signals from the microcontroller and alter the appearance of the human-machine interactive objects on the screen in accordance with the control signals.

Abstract: A touch-sensitive device includes a first conductive layer and a second conductive layer. The first conductive layer has at least a first edge and a second edge. The second edge is substantially parallel to the first edge and there is a voltage drop across the first conductive layer between the first edge and the second edge when a power supply is coupled to the first edge and the second edge. The second conductive layer is separated from the first conductive layer by a spacer layer. The second conductive layer includes multiple electrically isolated conductive regions. When a plurality of the conductive regions are in contact with the first conductive layer simultaneously, each of the plurality of the conductive regions generates an output signal and the magnitude of the output signal depends at least in part upon the conductive region's position relative to the first and second edges.

Abstract: A method of image scaling includes the steps of: determining the coordinates of a virtual pixel in an original image, wherein the virtual pixel corresponds to an actual pixel in a scaled image; determining the coordinates of four actual pixels in the original image that are closest to the virtual pixel; determining the weights of the four actual pixels; and determining the pixel value of the virtual pixel in the original image in accordance with the determined weights and the pixel values of the four actual pixels.

Abstract: A floorboard assembly for vehicle, comprising a front floorboard (2) and a middle floorboard (6) that are connected in a fixed manner or formed integrally, wherein, the front floorboard (2) is in ridge shape, roughly flat at both sides and raised in the middle, the raised part in the middle defines a cavity which is suitable for accommodating a battery for vehicle. In the floorboard assembly for vehicle provided in the present invention, the middle channel part of the front floorboard (2) is raised, and a high capacity battery can be placed in the cavity defined by the raised part in the middle; in that way, the space utilization ratio for floorboard is higher, the battery pack can be installed and maintained conveniently, and the gravity center of the vehicle is stable.

Abstract: The invention discloses a connector that comprises an insulation body and one or more conductive terminals within the insulation body. The one or more conductive terminals comprise at least one clamping portion to clamp onto the insulation body. The invention further discloses an endoscope, which comprises a telescope, an imaging means, an image sensor that transforms optical signals from the imaging means into electrical signals and a PCB board that organizes and outputs the electrical signals, the imaging means, image sensor and PCB board being located in the telescope, wherein the endoscope further comprises the connector that electrically connects the image sensor and the PCB board to form a first assembly. The invention further discloses a method to make the connector.

Abstract: An optical lens component comprises a fixed diaphragm, a lens group and a filter. The lens group comprises a first, a second and a third lens which is coaxial and arranged successively from object to image. The fixed diaphragm is located on the front of the first lens and the filter is located on the back of the third lens. The first lens comprises a first surface and a second surface; the second lens comprises a third surface and a fourth surface; and the third lens comprises a fifth surface and a sixth surface. The above six surfaces are all aspheric surfaces.

Abstract: A line spring jack and an assembling method are disclosed. The line spring jack comprises a jack body, a jack cap, a line spring wire and a positioning plug. Said jack body further comprises a plug hole; said line spring wire is located in said plug hole; said jack cap is connected to one end of said jack body; said jack cap further comprises a through hole connected to said plug hole; one end of line spring wire is clipped in a space formed between said jack cap and said jack body; wherein said plug hole further comprises a groove in the bottom; the caliber of the groove is smaller than the diameter of said plug hole; said positioning plug includes a part in the groove and a part in the plug hole, the part in the groove is tightly matched to said groove.