Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Hongfujin Precision Industry (wuhan) Co., Ltd.

Johnson Electric International Ag

Accelink Technologies Co., Ltd.

Fu Ding Electronical Technology (jiashan) Co., Ltd.

Long Yu

Fang-Quan Li

Yan-Bin Liu

Yu-Cheng Chen

Ming-Lu Yang

Rui Feng Qin

Liang-Chin Wang

Ruifeng Qin

Jian Dong

Chunping Yu

Ju-Lan Hao

Yi Jing

Kwok Kuen Tse

Xiaoming Wang

Zhi Chen

Weiqing Zhang

Guoyuan Zou

Pinghua Tang

Xiao-Xing Ren

Li-Jun Li

Guang-Cheng Yang

Jun-Feng Yao

Chunyu Li

Qinlian Bo

Xuan Luo

Qiu Yang Zhang

Disclosed are an online program update method and device for an optical amplifier. The method comprises: when a program update instruction is sent, a Microcontroller Unit MCU receiving update programs of MCU and a programmable logic device FPGA, storing them in a program memory device, and sending an update instruction to FPGA; FPGA terminating; operations of a digital-to-analog converter DAC according to the instruction and a current state remaining unchanged; MCU loading new codes of MCU and FPGA while DAC remains in state of halting refreshing; and after MCU and FPGA run the new codes, reading previously stored data, and starting switching from a previous operation state to enter normal operation state. On basis of conventional optical amplifier control, the invention combines characteristics of MCU and FPGA, and ensures uninterrupted service of optical amplifiers, achieving smooth transition of services, thereby improving stability and reliability of whole optical communications systems.

Online program update method for optical amplifier, and device

A fluid pump includes a pump casing, a motor connected to the pump casing, and an impeller driven by the motor. The motor includes a housing and a stator arranged in the casing. The housing is made of a non-magnetic material. The stator includes a stator iron core and a plurality of windings wound on the stator iron core. The motor further includes a sleeve having a cylindrical main body and a flange extending radially outwards from one end of the main body and fixed to the housing. An annular space is jointly bounded by the sleeve and the housing to accommodate the stator. A part of inner surface of the housing and a part of bottom surface of the flange facing the annular space are coated with a metal coating for electromagnetic wave shielding.

Fluid pump

A display device includes an outer frame, an inner frame, and a glass. The inner frame is movably coupled to the outer frame, and the inner frame and the outer frame cooperatively define a glass receiving slot. One end of the glass is received in the glass receiving slot and clamped between the inner frame and the outer frame.

Detachable display device

An optical power and gain detection apparatus including multiple optical power detection circuits, an FPGA device, and a temperature detection circuit. Various optical power detection circuits include a respective independent photoelectric converter, a trans-impedance amplifier, an analog signal conditioning circuit, a filter and an analog-digital conversion chip. By improving an analog circuit, digital detection and control in an optical amplifier, the property of the FPGA device may be used to realize the detection of optical signal and gain in a burst mode, avoid increasing complicated analogue circuits, and avoid the influence caused by element inconsistency in an analogue control solution. Whether the optical signal is in a stable mode or in a burst mode, the algorithm can detect the optical power accurately and stably, with a wide application range. By strictly controlling the synchronism of ADC sampling and the delay of calculation, the amplifier gain may be calculated more accurately.

Optical power and gain detection apparatus and method for optical amplifier in burst mode

A base device which can raise or lower a display panel suspended therein includes a fixing frame, a hanger for fixing the panel, two sliding rods, a connecting seat, a driving device, and a screw rod. The fixing frame includes two fixing rods spaced apart from each other and a base connected between the two fixing rods. The two sliding rods are connected to the hanger and slidably fixed to the two fixing rods. The connecting seat is fixed between the two sliding rods. The screw rod is fixed on the base. The driving device is fixed on the connecting seat and slidably connected to the screw rod. When the driving device is moved, manually or by motor, up and down along the screw rod the hanger carrying the panel is lifted up or lowered.

Displayer base with displayer elevating device

A cooling fan module for a heat exchanger or the like, has a motor, a fan driven by the motor and a speed controller connected between the motor and a power supply. The speed controller is configured to operate the motor in a high speed mode and a low speed mode. The speed controller includes a high speed branch and a low speed branch connected in parallel. The low speed branch includes a pulse width modulation circuit configured to reduce an average voltage by a fixed duty ratio to achieve a low speed operation of the motor. By eliminating the conventional voltage dropping resistor, the speed controller reduces the power consumption, thus increasing the efficiency of the module, in the low speed mode of operation.

Cooling fan module

A centrifugal moisture removal device includes a rotating mechanism and a fixing mechanism. The rotating mechanism includes a rotating bracket and a rotary driving member. The rotating bracket includes two sleeving portions. The fixing mechanism includes two positioning members, two clamping members, and two line driving members. Each clamping member includes a moving staff, an elastic member, and a sensing member. A first end portion of the moving staff passes through a sleeving portion and is mounted on a positioning member. The elastic member is sleeved on the moving staff. A first end portion of the elastic member resists the sleeving portion. A second end portion of the elastic member resists a second end portion of the moving staff. Each line driving member is set above the second end portion of a moving staff. The sensing member senses when the workpiece arrives at the positioning member.

Centrifugal moisture removal device

A hand-driven mechanical screwdriver includes a holding assembly, a drive mechanism supported by the holding assembly, and a working element. The holding assembly includes a bracket and a sliding channel defined in the bracket. The drive mechanism includes a connecting element and a screw rod threadably engaged within the connecting element. An activator is rotatably connected to the connecting element and slidably positioned within the holding assembly bracket sliding channel. The working element is attached to the second end of the screw rod. When the activator is slid along the sliding channel, the connecting element moves from near the second end of the bracket towards the first end of the bracket rotating the threadably engaged screw rod and the working element attached to the screw rod.

Hand-driven mechanical screwdriver

A testing tray includes a receiving member and a connector. The receiving includes a tray and a latching member. The tray includes a bottom wall, a peripheral sidewall protruded from the bottom wall, a resisting member and a guide groove. The resisting member includes a resisting portion and two elastic portions coupling the resisting portion with the peripheral sidewall. The tray includes at least one latching portion protruded from the peripheral sidewall. The latching member includes a sliding portion slidably mounted on the bottom wall to cover the guide groove and an elastic member located between the sliding portion and the bottom wall. The connector includes a fixed member detachably mounted on the at least one latching portion and a conducting member detachably mounted on the fixed member. The conducting member is capable of coupling the electronic device with a testing device.

Testing tray

An electronic device includes a housing and a functional module received in the housing. The housing includes a bottom wall, two sidewalls extending from opposite sides of the bottom wall, and two connecting walls. Each of the connecting walls extends from an edge of each sidewall away from the bottom wall and bends towards to the other of the connecting walls. The bottom wall, the sidewalls and the connecting walls cooperatively form a receiving space having at least one opening. The functional module includes a fixing frame positioned adjacent to the bottom wall, a circuit board positioned on the fixing frame, and a display panel positioned on circuit board away from the fixing frame and electrically connected with the circuit board. The fixing frame is capable of being slidably pushed into the housing via the at least one opening together with the circuit board and the display panel.

Electronic device with display panel

A housing structure includes a shell integrally formed in aluminum and at least one mounting member. The shell includes a bottom wall, a first end wall, a second end wall and a top wall connected to the first end wall and the second end wall. The first end wall and the second end wall extend from opposite ends of the bottom wall. The bottom wall, the first end wall, the second end wall, and the top wall cooperatively form a receiving space with at least one opening. A first installation rail and a second installation rail protrude respectively from inners wall of the first end wall and the second end wall. The at least one mounting member is connected with the first installation rail and the second installation rail to enclose the at least one opening. The disclosure also supplies an electronic device using the same.

Housing structure and electronic device using the same

Portable electronic device

Tablet personal computer

Growing community of inventors

Shenzhen, China

Long Yu