Abstract: A measuring method for synchronizing bio-signals with stimulations is capable of enhancing utility by using wireless synchronization signal transmission instead of conventional wired synchronization signal transmission and by using a signal processing approach to compensate a delay time in the wireless transmission to obtain a synchronous result. Thereby a stimulus signal corresponds to a biological response signal precisely in order to correctly generate integrated synchronization data of a stimulus organism.

Abstract: In an electronic device and a method of correcting time-domain reflectometers, two channels of a time-domain reflectometer are connected to a corrector using cables, and the two channels are enabled to transmit pulses. Parameters Step Deskew and Channel Deskew of the two channels are zeroed. Resistance values of the two channels are measured simultaneously, and the value of the parameter Step Deskew of one of the two channels is adjusted according to the Resistance values of the two channels. Times of achieving the same resistance value of the two channels are measured after the cables and the connector have been disconnected, and the value of the parameter Channel Deskew of one of the two channels is adjusted according to the times of achieving the same resistance value. The adjusted values of the parameters Step Deskew and Channel Deskew are displayed through a display unit.

Abstract: A joint mechanism is for a robot. The joint mechanism includes a base; a first drive device mounted on the base including a first drive shaft; a second drive device including a second drive shaft; a joint body defining a plurality of toothed grooves and a guiding groove. A sliding board mounted on first drive shaft, the sliding board slidably located in the guiding groove to guide the joint body to swing relative to the base. A gear mounted on the second drive shaft, the gear meshes with the toothed grooves; a limiting assembly for rotatably mounting the joint body on the base. When the first drive device is started, the first drive shaft is rotated to drive the joint body rotating around the first drive shaft; when the second drive device is started, the second drive shaft is rotated to drive the gear rotating so the joint body swings relative to the base.

Abstract: A printed circuit board includes a first signal layer, a first reference layer, a second signal layer, and a third signal layer in that order and includes a first slanted via and a second slanted via. The first signal layer includes an parallel first transmission wire and a second transmission wire. The first and second transmission wires are coupled with each other and cooperatively constitute a first differential pair with an edge-coupled structure. The second signal layer includes a third transmission wire. The third signal layer includes a fourth transmission wire parallel to and coupled with the third transmission wire. The third and fourth transmission wires cooperatively constitute a second differential pair with a broadside-coupled structure. The first slanted via obliquely are interconnected between the first transmission wire and the third transmission wire. The second slanted via obliquely are interconnected between the second transmission wire and the fourth transmission wire.

Abstract: An exemplary manipulator of a robot includes a fastening seat defining two guiding grooves, a driving mechanism disposed on the fastening seat, two transmitting plates respectively received in the two guiding grooves and cooperating with the driving mechanism, and two detecting bars each fixedly connecting with a corresponding transmitting plate. A detecting pin is fixed on each of the detecting bars. Under a driving action of the driving mechanism on the transmitting plates, the transmitting plates are activated to slide in the guiding grooves to cause the detecting bars to move close to or apart from each other, whereby a distance between the two detecting pins is automatically regulated.

Abstract: An exemplary manipulator of a robot includes a detecting bar including two detecting pins and a regulating mechanism for regulating the distance between the two detecting pins, a fastening seat supporting the detecting bar, a fixing device fixed to the fastening seat, a driving mechanism disposed on the fastening seat, and an adjusting element connecting the driving mechanism with the regulating mechanism of the detecting bar. Under a driving action of the driving mechanism on the adjusting element, the adjusting element rotates to cause the regulating mechanism of the detecting bar to regulate the distance between the two detecting pins.

Abstract: A method controls motions of a mechanical arm using an electronic device. The mechanical arm includes an x-axis, a y-axis, and a z-axis. The method sets a step angle of a motor installed in line with the z-axis, and predefines angles of rotation as reference points regarding orientation of the rotating arm when rotated. The method further calculates a rotation angle of the rotating arm in a polar coordinate system, calculates coordinate motions of the x-axis and the y-axis if a free end of the rotating arm orientates to one of the reference points, and calculates an offset correction value of a pole origin position of the polar coordinate system. After correcting each of the coordinate motions and the pole origin position, the method controls the mechanical arm to move, and drives the rotating arm to reach another reference point according to a multiple of the step angle.

Abstract: An exemplary antistatic device assembly includes an electricity receiving part and an electricity discharging part. Guiding portions protrude from the electricity receiving part. The electricity discharging part is located at a side of the electricity receiving part, and oriented toward and spaced from the guiding portions of the electricity receiving part. The electricity discharging part is electrically conductive and capable of being grounded. Static electricity accumulated on the electricity receiving part is removable to the electricity discharging part via the guiding portions.

Abstract: A system and method generates a test file of a print circuit board (PCB). The system and method loads trace information of the PCB into a storage system of a test computer, searches the storage system for the trace information matching keywords received and selects traces to test from the searched results. The system and method further acquires length and test points of each selected trace, and sets test parameters of each test item. In addition, the system and method generates a test file of the PCB according to the test parameters, the length, and the test points of each selected trace.

Abstract: A bistable switching method and a latching relay using the same are provided. The latching relay includes a rotor shaft, a cylindrical permanent magnet, a first permeability material, a second permeability material, a coil, a hitting device and a contact unit. The method includes the following steps. While the coil is applied first direction currents, the rotor shaft rotates and to make the contact unit from the open state to the closed state or the contact unit keeps the closed state. After the first direction currents are turned off, the contact unit still remains in the closed state. Otherwise, while the coil is applied second direction currents, the rotor shaft rotates and to make the contact unit from the closed state to the open state or the contact unit keeps the open state. After the second direction currents are turned off, the contact unit still remains in the open state.

Abstract: A product line assembly includes a plurality of containers detachably connected. Each of the plurality of containers includes a case and equipment received in the case. Each container is configured for performing an individual working procedure.

Abstract: An embodiment of the invention provides a disparity search method for searching for a matching pixel block from a second image of a multi-view video. The matching pixel block corresponds to a given pixel block of a first image of the multi-view video; the first image and the second image are spatially adjacent to each other. First, a set of reference pixel blocks is selected from a set of reference images of the multi-view video to provide a set of reference disparity vectors. Then, a set of disparity vector predictors is prepared based on the set of reference disparity vectors, wherein the given pixel block's position and the set of disparity vector predictors define a set of candidate pixel blocks in the second image. Next, the set of candidate pixel blocks in the second image is searched for the matching pixel block.

Abstract: An actuating mechanism includes first and second hollow outer shafts, two rotating wheels located between the first and second outer shafts, and an inner shaft received in the second outer shaft. Each of the first and second outer shafts forms a connecting portion at one end thereof. Each connecting portion defines two receiving holes. Each rotating wheel includes a body and a rod extending through the body. The bodies of the rotating wheels are in contact with each other. Two ends of the rod of each rotating wheel are correspondingly received in the receiving holes of the first and second outer shafts to connect the first and second outer shafts together. One end of the inner shaft contacts the rod of one rotating wheel. The inner shaft is rotatable in the second outer shaft to drive the two rotating wheels to rotate.

Abstract: An electronic device and method of automatically testing the transmission lines of a PCB. Design requirements of transmission lines are predetermined and a wiring diagram is acquired according to a designated wiring diagram storage path. Some basic parameters of each transmission line of the diagram are applied in excluding one or more transmission lines which may not meet the design requirements, then, the excluded transmission lines are marked and/or highlighted. A report of the transmission lines is generated using a report template.

Abstract: A reversing transmission includes a shaft, a retainer, a spacing collar, reversing members, two gears and two covers. The holder is sleeved on the shaft with spaced sliding notches formed thereon. The spacing collar is mounted on an outer surface of the retainer. The reversing members each include two spaced swing plates, with two reversed spiral teeth dented on two diagonal half surfaces of the two spaced swing plates. The reversing members slide into the sliding notches of the holder, with the two swing plates of each reversing member distributed at different sides of the spacing collar. Each of the gears has a group of spiral teeth formed on the inner side for engaging with the group of spiral teeth of the reversing members, and cogs formed on the outer circumference surface. The covers are mounted on two opposite ends of the holder to keep the reversing members in position.

Abstract: In a method for controlling motion of a mechanical arm, the method moves the mechanical arm horizontally or vertically so that an image capturing device of the mechanism arm focuses on an object. The contours of the object are analyzed, and a central area of the object is established. By making the center of the image area of the image capturing device coincide with the center area of the object at least twice, the method records two positions of the mechanical arm, and calculates a total apparent displacement value of the object and a distance between the object and camera lens of the image capturing device according to the first position, the second position of the mechanical arm and the total apparent displacement value of the object. The method ensures accurate positioning of the mechanical arm.

Abstract: Parameters of a radio frequency filter can be changed by changing structure of each component of the filter. Material of each component, diameters of each of magnetic cylinders, density of each of conductive coils, thickness of a dielectric layer, and thickness of an insulation tube can be changed. When any component needs to be replaced, each cover is rotated, with connection partitions moving to two slots of an insulation portion, to detach the filter.

Abstract: A computer system includes a motherboard with first and second storage device interfaces and first to third memory slots, and first to third serial advanced technology attachment dual-in-line memory modules (SATA DIMMs). First and second extending boards are extended from two opposite ends of each SATA DIMM, arranged with first and second edge connectors, respectively. The first edge connector of the first SATA DIMM is connected to the first storage device interface. The second edge connector of the first SATA DIMM is connected to the first edge connector of the second SATA DIMM. The second edge connector of the second SATA DIMM is connected to the first edge connector of the third SATA DIMM. The second edge connector of the third SATA DIMM is connected to the second storage device interface.

Abstract: In a method for transmitting data between a host computer and a slave device, the host computer connects to a slave device through a data communication port. The slave device is equipped with a power supply that includes at least one capacitor. The power supply is charged through the host computer using the capacitor when the host computer is powered on. The method controls the host computer sends data to the slave device, and controls the capacitor to discharge to provide power to the slave device for a period of time when the host computer is powered off, and stores the data packet into the slave device during the period of time. The method further retrieves the data from the storage device when the host computer is powered on, and resends the data to the slave device through the data communication port.

Abstract: A printed circuit board (PCB) includes two layers, two signal transmission traces, and a vertical interconnect access (via). The signal transmission traces are respectively arranged on the layers. The signal transmission traces are electrically connected to each other through the via. A centerline of the via with a vertical line of the layers form an acute angle ?, the angle ? is less than cos?1[(Lv2?Lt2)/(Lv2+Lt2)]. Wherein Lt is loss of the two signal transmitting traces in a unit length, and Lv is loss of the via in a unit length.