Abstract: A computer system includes a serial advanced technology attachment dual-in-line memory module (SATA DIMM) device and a motherboard. The SATA DIMM device includes a control chip and an edge connector. The motherboard includes a memory slot and a light emitting diode (LED). When the edge connector is inserted into the memory slot, first power pins, first ground pins, and first indication pin of the memory slot are respectively connected to second power pins, second ground pins, and second indication pin of the SATA DIMM device. The motherboard outputs a voltage to the control chip through the first and second power pins. The control chip detects and calculates the storage capacity of the SATA DIMM device and outputs a control signal to control the LED to turn on or not, for displaying free memory capacity of the SATA DIMM device.

Abstract: A heat dissipating apparatus includes a rear cove, a fan rotatably attached to the rear cover, a slave gear secured to the fan, and a driving gear rotatably attached to the rear cover. The rear cover defines a plurality of air ventilation holes. The fan is aligned with the plurality of air ventilation holes. The driving gear meshes with the driven gear. A resilient member is secured to the driving member. The driving gear is rotatable in a first direction to deform the resilient member. The resilient member is released to rotate the driving gear in a second direction that is opposite to the first direction, and the slave gear and the fan are together rotatable in the second direction by the driving gear.

Abstract: A server includes a chassis including a first sidewall, a second sidewall, a rear wall, a front wall, and a partition wall. A receiving space to receive a power module is bound by the front wall, the partition wall, and front portions of the first and second sidewalls. A number of through holes is defined in each of the rear wall, the front wall, and the front portions of the first and second sidewalls. An outlet and an inlet of the power module face the first sidewall and the second sidewall, respectively. A part of the partition wall between the inlet and the first sidewall does not define through holes. Another part of the partition wall defines a number of through holes. A number of data storage devices is located between the partition wall and the rear wall. A number of fans is located outside the rear wall.

Abstract: A method for activating a node in a Wireless Sensor Network includes detecting and amplifying pulse signals from a base station; determining whether pulses in the amplified pulse signal are valid; and counting valid pulses in three time periods. A target identifier is calculated using a predetermined formula and numbers of the valid pulses counted. Whether the target identifier matches an identifier of the communication system is determined. The communication system when the target identifier matches the identifier of the communication system is activated. The node is also provided.

Abstract: A handling mechanism for handling workpieces includes a first sliding assembly, a second sliding assembly, a driving assembly, a loading assembly and a clamping assembly. The driving assembly is connected to the first sliding assembly and the second sliding assembly. The loading assembly is slidably clamped between the first sliding assembly and the second sliding assembly. The clamping assembly is fixed to the loading assembly for clamping and placing workpieces one by one. The first sliding assembly and the second sliding assembly are driven by the driving assembly to slide along a same direction or in two opposing directions, to enable the loading assembly to slide with the first sliding assembly or to slide along a direction perpendicular to the sliding direction of the first sliding assembly. A punching machine using the handling mechanism is also disclosed, in which workpieces are placed by clamping assembly on lower mold for punching.

Abstract: A stand, rotatable through approximately 180 degrees, supports a display device in such a way that whilst the height of the display device above a supporting surface is variable, a full range of viewing angles is also available at any height.

Abstract: In a method of detecting firmware using a first electronic device, the first electronic device comprises a first baseboard management controller (BMC). The first electronic device receives a first message of requiring the first electronic device from a host computer, to detect whether firmware of a second BMC of a second electronic device runs in a normal state. The electronic device sends a second message of requiring the second BMC to obtain whether firmware of the second BMC runs in the normal state. Once the second BMC dose not response to the second message in a first predetermined time period, the electronic device recovers the firmware of the second BMC using firmware of the first BMC.

Abstract: An assembly of boards includes a first board, a second board and a lock member. The first board includes a first through hole and a gap formed on a bottom of the first board. The second board includes a supporting wall formed on a bottom thereof, a second through hole corresponding to the first through hole, and a receiving hole defined in the first board and communicating with the second through hole. The lock member includes a head rotatably received in the receiving hole and being blocked by the supporting wall, a neck connected to the head, and a latch portion formed on the neck, the latch portion extending through the first and second through holes and able to be rotatably abutted so as to latch against the bottom of the first board.

Abstract: A positioning mechanism includes a loading assembly and a clamping assembly. The clamping assembly includes a driver mounted on the bottom of the loading assembly, at least two sliding members driven by the driver, and at least two clamping subassemblies mounted on the top of the loading assembly. The clamping subassemblies are divided into two groups and are arranged and mounted adjacent to opposite sides of the loading assembly, and the sliding members are connected to the two groups of the at least two clamping subassemblies, respectively. The driver is capable of driving the sliding members to move away from or toward each other to enable the two groups of the clamping subassemblies to move toward or away from the loading assembly to clamp or release a workpiece on the loading assembly. The present invention further discloses a bonding device using the positioning mechanism.

Abstract: A power supply test device includes a function generator, a loading circuit, a current detection circuit, and a controller. The function generator outputs a square-wave signal to the loading circuit. The loading circuit is electronically connected to a power supply, the loading circuit regulates an output current of the power supply according to the square-wave signal. The current detection circuit cooperates with the controller in detecting a slope of the output current. The controller compares the detected slope with a preset value, and regulates the square-wave signal according to the comparison to regulate the slope of the output current.

Abstract: A serial advanced technology attachment (SATA) module includes a number of circuit boards and a number of SATA devices. Each of the circuit boards includes an expansion microchip. The expansion microchip includes an input terminal, an output terminal and an expansion terminal. The expansion microchips are electrically connected in series with the input terminal of one expansion microchip connecting to the expansion terminal of another expansion microchip. The input terminal of a front expansion terminal positioned at a first end of the expansion microchips is configured to connect to a SATA controller. Each of the SATA devices is electrically connected to the output terminal of one expansion microchip and configured to transmit data with the SATA controller by the corresponding expansion microchip.

Abstract: A computing device is connected to a measurement machine. The measurement machine measures an object to obtain images of measured elements of the object by using a measurement program. The computing device divides the measurement program into two or more program segments. An icon for each program segment is generated according to a type of the program segment. The computing device generates a title state and an opened state for each program segment. If a program segment is in the title state, the icon, a name, and a first line of program codes of the program segment is displayed on an interface provided by the electronic device. If the program segment is in the opened state, the computing device displays all program codes of the program segment on the interface.

Abstract: A secure switch module to allow only authorized keyholders to power on an electronic device includes a lock, a key matching the lock, and a power switch. The lock includes a first lock pin electrically connected to a ground pin of a motherboard of the electronic device, and a second lock pin. The power switch includes a button, a first elastic conductive sheet electrically connected to the second lock pin, and a second elastic conductive sheet electrically connected to a power on pin of the motherboard. When the key is engaged with the lock and the button is pressed, the first lock pin is electrically connected to the second lock pin, the first elastic conductive sheet is electrically connected to the second elastic conductive sheet, the power on pin receives a low level signal, and the electronic device is turned on.

Abstract: A page zooming method for an electronic device includes the following steps. Displaying a page on the touch screen. Generating operation signals in response to a touch operation applied on the displayed page. Determining the touch operation as a page zoom gesture if one or more points on the displayed page is touched. Determining a quantity of the touched points of the touch operation, and determining the page zoom gesture is a zoom in gesture or a zoom out gesture and a zoom ratio according to the determined quantity of the touched points. Creating a zoomed page according to the displayed page, the determined zoom ratio and the determined type of the page zoom gesture. Displaying the zoomed page on the touch screen. An electronic device using the page zooming method is also provided.

Abstract: A heat dissipation system includes a chassis, a number of heat absorbing boxes, a number of pipes, a first water tank and a second water tank received in the chassis, a number of fins sandwiched between the first water tank and the second water tank, a number of fans aligning with the fins, and a water pump connected between the first water tank and the second water tank. Each heat absorbing box includes a water inlet and a water outlet, and heat from electrical components is gathered by the boxes, transferred to the water tanks, and the fans blow air through the fins to dissipate the gathered heat.

Abstract: A milling and grinding device, for machining a workpiece, includes a rack, a positioning tool, a spindle, a tool magazine, a milling cutter, a grinding wheel, and a controller. The rack defines a receiving chamber, and includes a workstation at a bottom of the receiving chamber. The positioning tool is mounted on the workstation to position the workpiece. The milling cutter and the grinding wheel are received in the tool magazine. The milling cutter is capable of milling the workpiece to form a hole. The grinding wheel is capable of grinding the hole of the workpiece. The controller is mounted on the rack, and capable of controlling the spindle to receive the milling cutter or the grinding wheel from the tool magazine, to mill or grind the workpiece. The tool setting gauge is mounted on the workstation, and capable of sharpening the grinding wheel in a different grinding precision.

Abstract: An electronic device enclosure includes a chassis defining an space, and a cover module. The chassis includes two opposite sidewalls locating at two sides of the space. The cover module includes a cover and a latching apparatus mounted to the cover. A first end of the cover is rotatably connected to first ends of the sidewalls, and the latching apparatus is mounted to a second end of the cover. A second end of one of the sidewalls defines a latching hole. The latching apparatus includes a latching member slidably mounted to the cover, a resilient member sandwiched between the latching member and the cover, and an operation member mounted to the latching member. The latching member includes a latching block. The resilient member biases the latching member to slide, to allow the latching block to latch in the latching hole.

Abstract: A touch input device is provided. The touch input device includes a touch panel and a touch control. The touch panel includes a number of touch sensor groups, each touch sensor group includes a line of touch sensors, each touch sensor produces a touch signal in response to a user's touch, the touch sensor groups are arranged on the touch panel one by one along a predetermined path, the quantity of touch sensors of each touch sensor group is increased or decreased gradually, and the arrangement direction of the touch sensors of each touch sensor group is perpendicular to the direction of the predetermined path. The touch control is connected to the touch panel and is used to receive the touch signals produced by the touch sensor, and determine a touch path according to the changes of the quantity of the received touch signals.

Abstract: A computing device is connected to a measurement device including a projector, a left camera and a right camera. The projector is controlled to project gratings with a number M of frequencies on an object. The left camera captures a number N of left grating images, and the right camera captures a number N of right grating images of the gratings with each of the frequencies. A luminous intensity of each pixel in each of the left grating images and the right grating images is computed. According to the luminous intensity of each pixel in each of the left grating images, a first phase grayscale image is obtained. According to the luminous intensity of each pixel in each of the right grating images, a second phase grayscale image is obtained. A matched image is obtained by matching the first phase grayscale image and the second phase grayscale image.

Abstract: An exemplary system server includes a first server, a second server, and a bridge board. The bridge board includes a printed circuit board and a power input positioned on the printed circuit board. The power input receives power from a power source. The first server includes a first controller and a first ground end connected to ground. The first controller includes a first detecting end connected to the power input. The second server includes a second controller and a second ground end. The second ground end connects the first detecting end to ground via the bridge board. The first controller determines whether the second server functions according to a voltage of the first detecting end.