Abstract: An multi-axis transmission includes a frame, a motor, a housing, a first output mechanism, a second output mechanism, and a output control mechanism. The motor is secured to the frame, the motor includes a rotary shaft. The housing is axially slidably attached to the frame. The first output mechanism is secured to the frame. The second output mechanism is rotatably attached to the housing. The output control mechanism is secured to the rotary shaft, the output control mechanism is selected to engage the first output mechanism to output a first movement or to engage the second output mechanism to output a second movement angular with the first moment.

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 method for modulating multiple-instruments and multiple-sensors using an electronic device. The electronic device controls an instrument to measure the working parameters of an object, and controls a sensor to detect the working temperature of the object. By comparing the working parameters against a predefined range, and comparing the working temperature against a predefined temperature value, the electronic device determines whether the instrument and the sensor need to be modulated. If any of the working parameters is not within the predefined range or if the working temperature is greater than the predefined temperature value, the electronic device controls the instrument and the sensor to be modulated by using a modulation transfer function and a predetermined direction.

Abstract: An electronic device and method for inspecting electrical rules of circuit boards includes selecting at least two design files that record electrical rules of the circuit boards and searching the electrical rules in the selected design files using preset parameter keywords. Same electrical rules of the selected design files are acquired by comparing the electrical rules in the selected design files. The same electrical rules and corresponding parameter values are input to a comparison table, and the comparison table is output.

Abstract: A handheld input device includes a main body. The main body includes a first sidewall, a second sidewall, and a touch pad. The first sidewall is arc shaped and includes function buttons. The second sidewall is substantially perpendicular to the first sidewall. The touch pad is positioned on one end of the main body.

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.

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: A clamp apparatus includes a mounting base, a rotation actuator mounted to the mounting base, a beveled active gear driven by the rotation actuator, and at least two clamp jaws rotatably connected to the mounting base. Each clamp jaw includes a beveled driven gear engaging the beveled active gear of the clamp apparatus and a clamp body connected to the beveled driven gear. When the clamp jaws are rotated together with the beveled driven gear, the clamp bodies are moved toward or away from each other to clamp or release a workpiece, respectively.

Abstract: A clamping mechanism for holding a workpiece includes an end executor, a driving member, and a contact member detachably mounted on the end executor. The end executor includes a plurality of claws arranged in matrix. The contact member includes a mounting board and a plurality of contact sleeves corresponding to the claws. The driving member is capable of driving the mounting board, moving the contact sleeves to extend the claws, and hold the workpiece.

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: A system and method for testing objects using a mechanical arm includes establishing coordinate system based on a work area of the mechanical arm, and obtaining test parameters from a storage system. The method further includes controlling the mechanical arm to get an object and position the object to the position of a test platform according to the test parameters, controlling the mechanical arm to get test tool from a tool shelf and position the test tool to a position of test point on the object to test the object according to the test parameters. The method also includes controlling the mechanical arm to get the object from the test platform and position the object to the location reserved for the object according to the test parameters.

Abstract: A system and method for measuring performance of an electronic product using a measurement control device that connects to a measuring machine and a display device. A component of the electronic product is determined according to a coordinate array, and a physical factor of the component to measured is determined according to performance specifications of the electronic product. A sensor corresponding to the physical factor of the component is selected from sensors of the measuring machine, and a physical factor of each the component is measured by the selected sensor. The system indicates whether the electronic product is workable or unworkable by comparing the physical factors of the components with the performance specifications of the components, and generates a measurement report for evaluating the performance of the electronic product according to the indication results.

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 signal integrity test system and method uses an oscilloscope to test a signal on each test point of a transmission line, obtains test parameter values of the signal on each test point, and compares the test parameter values with preset standard values. If any test parameter value does not match a corresponding preset standard value, a time-domain reflectometer is used to test an impedance value of the test point. If the impedance value matches a standard impedance value of the transmission line, the system and method determines the signal on the test point satisfies integrity requirements.

Abstract: An apparatus for adjusting a differential probe includes a regulator arranged therein capable of adjusting a distance between two tips of the probe. The probe is supported on the apparatus. The apparatus includes a rotatable shaft and a rotatable disk. The rotatable shaft engages with the regulator of the probe. The rotatable disk is mounted surrounding the rotatable shaft and rotatable together with the rotatable shaft. An angular ruler or a radian ruler is described on an outer surface of the rotatable disk to indicate a rotation angle or a rotation radian of the rotatable shaft, therefore the distance between the two tips of the probe are accurately adjusted.

Abstract: A method for testing a characteristic impedance of an electronic component includes sending a positioning command to a control computer through a switch, so as to drive a probe holder of a mechanical arm to position probes of a time domain reflectometer (TDR) on a position of the electronic component. The method further receives measured data collected by the TDR, and compares the measured data with preset standard values to determine if the measured data is acceptable.

Abstract: A computer motherboard includes a printed circuit board which includes a central processing unit (CPU) socket and a group of memory slots. The group of memory slots includes an in-line type memory slot and a surface mounted device (SMD) type memory slot. The in-line type memory slot includes a number of plated through holes. The SMD type memory slot is set between the in-line type memory slot and the CPU socket. The through holes of the in-line type memory slot are connected to the CPU socket through traces, pads of the SMD type memory slot are connected to corresponding through holes of the in-line type memory slot having the same pin definition.

Abstract: A clamping apparatus for securing a workpiece is provided. The clamping apparatus includes a fixing base and a first and a second clamping device mounted on opposing sides of the fixing base. The first clamping device includes stacked clamping sheets, each of which is moveable and comprises an inclined clamping edge for contacting the workpiece. A support assembly supports the plurality of stacked clamping sheets; and an operating member is slidable relative to the support assembly and contacting the plurality of staked clamping sheets. The operation member is capable of moving at least one of the plurality of stacked clamping sheets relative to another one when the operation member slides relative to the support assembly, and moving at least one of the inclined clamping edge toward or away from the second clamping device to accommodate workpieces of varying sizes.

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: In an electronic device and method of protecting software, a software program of the electronic device is invoked. The media access control (MAC) address of the electronic device and a serial number of a hard disk drive that stores the software program in the electronic device are searched. The MAC address and the serial number are compared with MAC addresses and serial numbers included in the software program, to determinate whether it is licensed to run the software program in the electronic device. Usage logs of the software program are further obtained to determine whether running of the software program in the electronic device is expired.