Abstract: An interference suppression system comprises an antenna, a control module, a receiving and sending module, a radio frequency (RF) sending channel, a power amplifier (PA), a RF receiving channel, a first filter module, and a power detecting module. The control module adjusts the first filter module frequency band to achieve filter feedback to the PA input end. The interference suppression system applies multiple feedbacks to enhance suppression capability, and reduces interference from RF sending channel to RF receiving channel because of PCB signal leakage and mutual interference between this system and adjacent systems.

Abstract: A label peeling device includes a mounting bracket, a power member attached to the mounting bracket, a driving member driven by the power member; and a pressing assembly coupled to a first end of the driving member. A clamping mechanism includes a sliding member coupled to a second end of the driving member, and a clamping assembly configured to clamp a backing paper. A first resisting member is attached to the mounting bracket, and presses against the clamping assembly. The pressing assembly and the clamping mechanism are configured to be urged toward each other by a driving force imparted by the power member, the first resisting member drive the clamping assembly to the sliding member, and thereby cause at least one of the plurality of wafers to be removed from the backing paper.

Abstract: A drop test apparatus includes a frame, a first blocking board, a second blocking board, two first pivot poles and two second pivot poles. The frame includes a base board and a holding board above the base board for holding a tested product. The first blocking board is located between the base board and the holding board for placing the tested product when the tested product is dropped from the holding board. The second blocking board is secured to the base board. The two first pivot holes and the second two pivot poles are connected the first blocking board with the second blocking board, and a distance between the first blocking board and the second support is adjusted.

Abstract: An optical fiber connector includes a fixing module for gripping an optical fiber, an inner housing sleeved on the fixing module; and an outer housing sleeved on the inner housing. The fixing module includes a support member, a fastening member mating with the support member, and a locking member sleeved on the support member. The locking member forms at least one pair of gripping portions at outer surfaces of the locking member. The inner housing defines a pair of sliding grooves in a side wall thereof. The outer housing defines a pair of operating grooves communicating with the pair of sliding grooves correspondingly. The locking member is capable of sliding along the support member to grip or unlock the optical fiber driven by an assembly tool engaging with the pair of gripping portions through the pair of sliding grooves and the pair of operating grooves.

Abstract: A power circuit which is applicable to a data storage device. A boost circuit receives a first voltage and converts it to a second voltage. A charging and discharging circuit receives the second voltage and charges a charging capacitor. As long as a voltage detecting circuit detects that the second voltage exists, it outputs a first selection signal. When the voltage detecting circuit detects that the second voltage does not exist, it outputs a second selection signal and also outputs a signal to the charging and discharging circuit, to release a stored voltage. A voltage selection circuit will output the second voltage according to the first selection signal, or will output the stored voltage from the charging capacitor according to the second selection signal. Buck circuits convert the second voltage or the stored voltage to the different voltages required by a control chip of the data storage device.

Abstract: A lamp tube switch circuit includes a first connector and a second connector for connecting a lamp tube, a power supply, a switch module including at least six switches connected between the power port, the first connector and second connector, a detecting unit connected between the first connector and the second connector, a control unit, a ballast and a starter. The detecting unit detects impedances between the pins of the lamp tube to determine the type of the lamp tube. The control unit is connected to the detecting unit, and operated to have some of the switches to turn one and the others to turn off whereby a drive circuit is formed enabling power from the power supply to flow through the lamp tube to make the lamp tube to generate light.

Abstract: An electromagnetic stylus includes a body, a core and an induction coil. The body includes a first shell and a second shell telescopically sleeved on the first shell. The core is received in and has a nib end extending out of the first shell. The induction coil is sleeved on one end of the core and is received in the first shell. The first shell is made of material without electromagnetic wave shielding capability. The second shell is made of material with electromagnetic wave shielding capability. The second shell is configured to slide along the first shell between two positions, to shield or not to shield part of the induction coil.

Abstract: A coating includes a nano-composite layer including a plurality of films. The films are stacked together one after another. Each film includes a zirconium-copper carbonitride layer and a zirconium carbonitride layer.

Abstract: An assembly apparatus includes a linkage member defining a first front sliding groove and a first rear sliding groove and a sliding member movably connected to the linkage and defining a second front sliding groove and a second rear sliding groove. The first front sliding groove corresponds to the second front sliding groove, and the first rear sliding groove corresponds to the second rear sliding groove. The assembly apparatus further includes a fixing base defining a curved groove, a control member including a first rotation pin and a second rotation pin, and a fixing pin fixed with respect to the fixing base. The first rotation pin is slidably received in the first and second rear sliding groove, the second rotation pin is slidably received in the curved groove, and the fixing pin is slidably received in the first and second front sliding groove.

Abstract: A protection circuit includes first and second electronic switches. When a CPU socket does not contain a CPU, a signal pin of the CPU socket outputs a high level signal. The first and second electronic switches are turned on. A data transmitting line of a SMBus is connected to a digital integrated chip. The parameters of the digital integrated chip can thus be regulated. When the CPU socket contains the CPU, the signal pin of the CPU socket outputs a low level signal. The first and second electronic switches are turned off. The data transmitting line of the SMBus is disconnected from the digital integrated chip, to prevent damage to the digital integrated chip.

Abstract: A bending machine includes an operating platform, a lower die clamp received on the operating platform, an upper die holder, and an upper die clamp. The upper die holder includes a main body, a positioning pin, a spring, and an operating rod. The main body includes a lower surface and two opposite side surfaces, the lower surface defines a sliding groove having a bottom surface with a positioning hole defined thereon. One of the two opposite side surfaces defines a sliding slot communicating with the positioning hole. The spring and the positioning pin are received in the positioning hole in sequence. The operating rod is received in the sliding slot with one end received in the latching hole and the other end extending out of the sliding slot. The upper die clamp is slidable in the sliding groove and defines a pinhole corresponding to the positioning pin.

Abstract: A hinge assembly includes a pivot shaft defining a latching recess, a second leaf non-rotatably connected to the pivot shaft, a first leaf rotatably connected to the pivot shaft, and a clasping member fixed on the first leaf. The clasping member includes a receiving portion sleeved on the pivot shaft, and an elastic portion adjacent to the receiving portion. A part of the elastic portion engages in the latching recess of the pivot shaft, and the part of the elastic portion is separated from the receiving portion.

Abstract: A dual voltage switching circuit includes a first resistor and two transistors. Each transistor has a first terminal, a second terminal, and a third terminal. The first terminals are connected to a control terminal of a computer. The second terminals are connected to a standby power supply of the computer. The third terminals are connected to a power-on terminal of the computer via the first resistor. When the first terminals receive a low level signal from the control terminal, the first and second transistors are on, and the power-on terminal receives a voltage form the standby power supply via the first resistor.

Abstract: An airflow shielding device is configured for being secured to fan and includes a first member, a second member, and a plurality of shielding pieces. The first member defines a first through opening. The second member defines a second through opening corresponding to the first through opening. The shielding pieces are rotatably secured between the first member and the second member and rotate between a closed position, where the shielding pieces cover the first through opening, and an open position, where the shielding pieces are located so that air can flow through the first and second through openings.

Abstract: A computer system includes a chassis, a motherboard, a heat sink, a duct and a fan. The chassis includes a chassis bottom wall. The motherboard with a chip is secured to the chassis bottom wall. The heat sink is secured to the motherboard for cooling the chip. The duct includes a guiding portion and a latch portion located on the guiding portion. The latch portion is secured to the chassis bottom wall. The guiding portion is adjacent to the heat sink to direct airflow to the heat sink. The fan is secured on the latch portion of the duct. The guiding portion of the duct is positioned between the heat sink and the fan.

Abstract: A computer system includes an enclosure defining a window, a cover pivotably attached to the enclosure, a bracket fixed to a bottom of the cover, a pair of rails fixed to a bottom of the bracket and a hard disk slidably retained between the two rails. The cover can be pivoted to an opened position to bring the hard disk to a place out of the enclosure where the hard disk is accessible. The cover can be further pivoted to a closed position to cover the window to thereby receive the hard disk within the enclosure.

Abstract: A circuit for detecting management engine (ME) state of a computer includes first and second electrical switches, and an indicating circuit. The first and second electrical switches are connected to a south bridge of the computer and respectively receive an ME state signal and a startup signal from the south bridge. The ME state signal and startup signal are operable to turn on or turn off the first and second electrical switches to control the indicating circuit to indicate ME state of the computer.

Abstract: A service cart (100) includes a supporting frame (10) and a fixing shelf (20) secured to the supporting frame and a movable shelf (30). The movable shelf is movably secured to the supporting frame and located below the fixing shelf. The movable shelf can move horizontally relative to the supporting frame to extend out of the supporting frame a distance from any of two opposite lateral sides of the service cart.

Abstract: A slide rail includes a first slide and a second slide. The first slide provides a first arced surface. The second slide provides a second arced surface for being engaged with the first arced surface, so that the second slide is slidable relative to the first slide. The second arced surface has a same curvature as that of the first arced surface.

Abstract: A battery box includes a housing, a positive electrode member, and a negative electrode member. The housing includes a receiving space in a side thereof for receiving at least one battery therein. The receiving space defines two slots at opposite ends thereof. The positive electrode member is mounted to the housing and includes two positive electrode terminals each located at a corresponding one of the slots of the housing, respectively. The negative electrode member is mounted to the housing and includes two negative electrode terminals extending into the receiving space of the housing and each at a side of a corresponding slot of the housing.