Abstract: A print head includes a nozzle plate, a fixing plate fixed to the nozzle plate, an oscillation sheet, and a security assembly. The fixing plate defines a receiving groove. The oscillation sheet is fixed between the fixing plate and the nozzle plate and covers the receiving groove. The security assembly includes a fixing component, an elastic component, a fixing element, an anti-detachable component, and a pointed tip extending from a distal end of the anti-detachable component. The security assembly is fixed to the fixing plate, the elastic component and the anti-detachable component are received in the receiving groove with the pointed tip pointed towards the oscillation sheet. A first end of the compressed elastic component resists against the fixing component and a second end of the elastic component resists the anti-detachable component.

Abstract: A curved surface importing device and method imports character strings of graphic parameters and graphic attributes of graphs from an initial graphic exchange specification (IGES) document, and analyzes the character strings of each of the graphs to generate a graphic model. The curved surface importing device converts the graphic model to a plurality of free-form curves and a free-form curved surface, connects each of the free-form curves to generate a closed boundary curve, and cuts out a contour surface from the free-form curved surface according to the closed boundary curve. The curved surface importing device further meshes the contour surface using a plurality of triangles, and determines an approximate poly-line of a boundary of the contour surface. The plurality of triangles and the approximate poly-line of a boundary of the contour surface are displayed on a display screen.

Abstract: An exemplary electronic device includes a detecting component and a storage unit. The detecting component generates detecting signals when the electronic device has been disassembled. The storage unit stores disassemble history information based on detecting signals received from the detecting component.

Abstract: A wireless device triggers pairing or un-pairing between the wireless device and another wireless device. The wireless device further exchanges media access control (MAC) addresses, pairing magic numbers (PMNs), and pairing indices with the another wireless device so as to establish the pairing with the another wireless device upon the condition that the wireless device triggers the pairing. The wireless device further exchanges the MAC addresses, the PMNs, and the pairing indices with the another wireless device so as to establish the unpairing with the another wireless device upon the condition that the wireless device triggers the unpairing. The pairing magic numbers are operable to identify the pairing between the wireless device and the another wireless device. The pairing indices are operable to launch the MAC addresses, the PMNs, and the pairing indices.

Abstract: A securing apparatus includes a receiving portion, and two resilient arms. The receiving portion defines a receiving space through front and rear ends of the receiving portion. The resilient arms respectively extend away from each other from opposite sides of the rear end of the receiving portion. Rear ends of the resilient arms are capable of moving towards each other and being locked together, to allow a connector to be received between the resilient arms.

Abstract: An oscillograph can identify signals of a serial data bus. The signal identifying method triggers communication channels of the oscillograph, measures a rise time and a fall time for each captured signal, and sets a sender terminal (ST) and a receiver terminal (RT) for each of the captured signals according to the measured results. The signal identifying method determines the ST and RT for each of the captured signals after the oscillograph is triggered. If the determined ST of each of the acquired signals is identical to the set ST and the determined RT of the each of the acquired signals is identical with the set RT, the signal identifying process is completed and a report is generated to record the signal identifying result.

Abstract: An enclosure of an electronic device includes a chassis and a cover plate. An opening is defined in the chassis. The chassis includes a top plate and a flange substantially perpendicular to the top plate. A groove is defined in the flange. The groove extends along a direction substantially parallel to a plane defined by the top plate. The cover plate covers the opening of the chassis and partially covers the groove.

Abstract: A connecting mechanism includes a first connecting member, a second connecting member, a first conduit and a second conduit. The first connecting member includes a first cylinder and a first piston movably accommodated within the first cylinder to divide the first cylinder into a first space on the one side of the first piston and a second space on the opposite side of the first piston. The second connecting member includes a second cylinder and a second piston movable accommodated within the second cylinder to divide the second cylinder into a third space on the one side of the second piston and a fourth space on the opposite side of the second piston. The first conduit communicates the first space with the third space. The second conduit communicates the second space with the fourth space. An electronic device using the connecting mechanism is also provided.

Abstract: A computer mouse includes a housing, a first container secured in the housing, and a second container secured in the first container, a timing unit, and a processor. The first container defines through holes. The first container and the second container are spaced by a distance to define a receiving space being partly filling in liquid. Suspending members extends through the through holes. One end of the suspending member is received in the receiving space. The density of the suspending members is less than that of the liquid Sensitive switches are attached to the first container. A method for the mouse includes determining whether any one of the second contacts is charged; generating a position signal, controlling the timing unit to time; determining the movement direction of the a cursor; determining the movement distance of the cursor; and generating cursor control signal for controlling movement of the cursor.

Abstract: A battery charger includes a housing, at least two contacts, a transmission mechanism, and a driving member. The housing defines a slot and through holes. The at least two contacts are received in the housing and are operable to protrude out of the housing after passing through the through holes. The transmission mechanism is received in the housing and is for driving the at least two contacts to protrude out of the housing. The driving member is received in the housing and partially extends out of the housing after passing through the slot. The driving member is capable of sliding in the slot and activating the transmission mechanism.

Abstract: An output voltage adjustment circuit for buck circuits includes a microcontroller, first to eighth keys, and a display unit. The first to eighth keys input voltage adjustment signals to the microcontroller. A first input pin of the microcontroller is connected to a voltage output terminal. A second resistor is connected between the first input pin of the microcontroller and ground. A first to a sixth input/output pin of the microcontroller are connected to the display unit. A first to an eighth output pin of the microcontroller are connected to a pulse width modulation (PWM) controller. The first to eighth keys are selectively activated to provide voltage adjustment signals to the microcontroller, sampling output voltages of the voltage output terminal, comparing with a predetermined voltage, controlling the PWM controller to fine tune the duty cycle to output a stable voltage from the voltage output terminal. The display unit displays the voltages on the voltage output terminal.

Abstract: A loudspeaker module includes a hollow main body, two rotatable connecting portions, and two loudspeakers. The hollow main body includes two opposite sidewalls. Each of the opposite sidewall defines a first opening, an inner sidewall of the first opening defines an annular rotating slot. One end of the connecting portion extends an annular flange shaped corresponding to the rotating slot. The two rotatable connecting portions are respectively rotatably connected to the main body via the flange rotating about the rotating slot. Two loudspeakers are disposed in an end of the corresponding rotatable connecting portion away from the main body.

Abstract: A stylus includes a tube body, a touch end connected to the tube body, an inflatable balloon enwrapping the tube body such that the tube body and the balloon cooperatively define a sealed chamber, and an inflating mechanism for inserting gas into the sealed chamber to inflate the balloon and therefore, the size of the stylus is adjustable and convenient for using.

Abstract: A power supply unit includes a box, a circuit board, and a power connector. A first connector is set on the sidewall of the box and electrically connected to a rectifier of the box. The circuit board includes a number of output terminals set on a first side, and a second connector set on a second side and electrically connected to the first connector. Each of the output terminals is connected to the second connector. The power connector is selectively connected to some of the output terminals via a cable and connected to a power interface, the power connector is connected to the first end of the cable, and the second end of the cable is selectively connected to corresponding output terminals according to a required input voltage of different motherboards, the power connector outputs power signals to the motherboard and receives control signals from the motherboard.

Abstract: A lens applied to a light emitting element includes a first surface profile and a second surface profile opposite to the first surface profile. The first surface profile defines a first trench facing the light emitting element, and the first trench includes a bottom curved surface serving as a light incident surface. The second surface profile includes a top curved surface, and serves as a light emitting surface. Both the bottom and the top curved surfaces are mirror symmetric to the first suppositional plane P1 (X=0), and mirror asymmetric to the second suppositional plane P2 (Y=0) to cooperatively adjust light from the light emitting element to obtain an asymmetric light field. An illumination device having the lens is further provided.

Abstract: An LED lamp includes first and second LED strings connected in parallel to each other and a variable resistor interconnected therebetween. The variable resistor includes a resistance track with resistance coils wound thereon and a slider moveable along the resistance track. One portion of resistance of the variable resistor is connected in series with the first LED string, and the other portion of the resistance of the variable resistor is connected in series with the second LED string. When a position of the slider of the variable resistor is changed, a first electric current flowing through one of the first and second strings is increased, while a second electric current flowing through the other one of the first and second strings is decreased, such that the color temperature of the LED lamp is changed accordingly.

Abstract: A meeting information distribution system and method using a mobile communication base estimates a threshold value of a signal strength of a wireless signal receivable by a meeting room, and monitors user information of a terminal device by a server connected to the mobile communication base station. Attendee information is obtained from a database connected to the mobile communication base station, and is determined whether the user of the terminal device is an attendee by comparing the user information and the attendee information. Meeting information is obtained from the database if the user is an attendee, and is distributed to the terminal device through a wireless broadcast service channel.