Abstract: The hand-held electronic device includes a central processing unit, a memory unit, a state-detecting unit, a state-determining unit, a main power supply unit, a standby power supply unit, and a power supply switching unit. After determining the presence of a fall state, the state-determining unit will output a fall instruction and which causes the central processing unit to enter a low current mode; meanwhile, the power supply switching unit monitors power output and continues to supply low-potential power. In case of a fall of the hand-held electronic device, the device and method protect operation data and reduce the otherwise power-consuming current. The less power-consuming current is conducive to the reduction of capacitance required for a backup battery. The low current mode is effective in reducing the time taken to recover the operation mode of the electronic device.

Abstract: A pressure testing device includes: a vacuum pump having positive and negative pressure terminals; a first solenoid valve having a first intake terminal and a first exhaust terminal connected to the negative pressure terminal; a second solenoid valve having a second exhaust terminal and a second intake terminal connected to the positive pressure terminal; a pressure sensor having one end connected to the first intake terminal and the second exhaust terminal and the other end connected to a pressure testing terminal of an object; an operation module for displaying an operation interface to input pressure testing parameters; and a control unit for performing an air-extracting process through the vacuum pump and first solenoid valve or an air-exhausting process through the vacuum pump and second solenoid valve to the object according to the inputted parameters and displaying the state of the object sensed by the pressure sensor through the operation module.

Abstract: A multiple-output clock source signal generator for use with a fiber-optic communication apparatus for multi-dwelling units (MDU) includes a piezoelectric crystal, an input capacitor, an output capacitor, and a buffer unit having output ends. The piezoelectric crystal, the input capacitor, and the output capacitor are connected to the buffer unit so as to form a feedback circuit whereby the piezoelectric crystal oscillates and generates clock source signals to be output from the output ends, respectively. The multiple-output clock source signal generator is advantageously characterized by low costs and multiple output.

Abstract: A circuit board with double-sided universal circuit layout for laying out electronic components has a first side with a first circuit layout thereon and an opposing second side with a second circuit layout thereon; hence, the first circuit layout and the second circuit layout are disposed on the opposing sides of the circuit board, respectively. The first circuit layout and the second circuit layout feature electronic circuits having the same function, thereby allowing users to selectively install the electronic components at one of the first circuit layout and the second circuit layout as needed and still have access to the electronic circuits having the same function. A layout method for use with the circuit board with double-sided universal circuit layout is further introduced.

Abstract: A printed circuit board grounding structure for use with a communication apparatus is configured for use with a printed circuit board to contact a grounded casing and thereby form a grounded circuit capable of electromagnetic wave shielding. The printed circuit board ground structure includes a copper conductive layer and a plurality of solder contacts. The copper conductive layer is circumferentially disposed along the periphery of the printed circuit board. The solder contacts are disposed on the copper conductive layer and used for electrically contacting with the casing. The printed circuit board grounding structure prevents deterioration of electromagnetic wave shielding despite oxidation of the copper conductive layer. The circumferentially-disposed copper conductive layer blocks electromagnetic wave generated from inside the printed circuit board, prevents leakage of the electromagnetic wave, and ultimately prevents the electromagnetic wave from interfering with other electronic apparatuses.

Abstract: A method for laying out a printed circuit board for use in a gigabit-capable passive optical network includes the steps of providing a printed circuit board and laying out an analog circuit module, an analog-to-digital conversion module, a signal processing module, an optoelectronic transmitting and receiving module, and a power module on the printed circuit board. The printed circuit board has a first periphery and an opposing second periphery. The analog circuit module and the optoelectronic transmitting and receiving module are laid out at the first periphery of the printed circuit board. The power module is laid out at the second periphery of the printed circuit board. Electromagnetic wave generated by a power IC inserted in the power module does not interfere with data transmission taking place at the optoelectronic transmitting and receiving module. Furthermore, a printed circuit board for use with the method is proposed.

Abstract: A test device for testing a circuit board includes a base, a conveying platform, a driving unit, a connecting element, and a testing unit. The base has an operating space from above. The conveying platform is hinged to the base at a variable gradient, communicates with the operating space, and has thereon a carrier movable toward or away from the operating space as needed and configured to carry the circuit board. The driving unit is connected to the conveying platform and configured to drive the carrier to move. The connecting unit is connected to the conveying platform and the driving unit. The gradient of the conveying platform varies when the driving unit drives the carrier to move and thereby moves the connecting unit. The testing unit is movably disposed at the base and has at least one test terminal capable of approaching the operating space and testing the circuit board.

Abstract: An electrical protection for mounting on a wire connector housing, wherein the wire connector housing comprises a fixed hole and a plurality of wire-lock apertures exposed on a top surface of the wire connector housing, and the electrical protection comprise an insulating body and an insulating protrusion located at bottom surface of the insulating body. The insulating body is used to cover the wire-lock apertures at the top surface of the wire connector housing, and the insulating protrusion is designed and constructed to fit into the fixed hole of the wire connector housing. The wire-lock apertures of the wire connector housing are all covered and insulated to prevent electrical shock from the electrical leakage through the exposed apertures.

Abstract: A carrier for transmitting a high frequency signal and a carrier layout method thereof are provided. The carrier includes a substrate, conducting wires and reference planes both formed on the substrate. The carrier layout method includes defining impedance and thickness of the carrier according to the high frequency signal and defining layout parameters according to the impedance and the thickness. The layout parameters include a conducting layer formed on the conducting wires, a coplanar waveguide encompasses both the reference planes and the conducting wires as a part thereof, roughness portions formed on the conducting wires, recessed portions formed on the conducting wires, and the substrate being a high loss tangent substrate. The layout is performed according to the layout parameters defined thereabove, so as to increase loss of the high frequency signal in transmission.

Abstract: A wireless network apparatus capable of illumination includes a casing, a motherboard, a prompting unit, and a light emitting unit. The casing has a light permeable portion. The motherboard is disposed in the casing for serving a networking function. The prompting unit is disposed at the motherboard and electrically connected thereto for generating a prompting signal in accordance with a status of the networking function being performed by the motherboard. The light emitting unit is disposed on the motherboard or in the casing and corresponds in position to the light permeable portion. The light emitting unit is powered by the motherboard and configured to emit light passing through the light permeable portion, thereby serving a lighting function. Accordingly, the wireless network apparatus provides home illumination, increases the value-added, and boosts consumers' willingness to buy and install the wireless network apparatus.

Abstract: A waterproof battery includes a casing having an opening; a battery body received in the casing; a connecting unit disposed in the casing, wherein the connecting unit has a circuit board electrically connected to the battery body and a connector electrically connected to the circuit board and protruded from the opening; and a waterproof adhesive layer for being affixed to and thereby connecting an inner surface of the casing and a bottom side of the circuit board so as to hermetically seal the opening. Accordingly, the waterproof battery is capable of preventing water or liquid from intruding into the battery body to cause damage thereto, that is, a built-in capacity to be water-free.

Abstract: A test assist device includes: a network function module having a network port that is connectible to a network device; a control module connected to the network function module and having a processing unit and a transmission port electrically connectible to an input unit for receiving from the input unit at least one of basic test data and test result messages of an object, the processing unit transmitting the received at least one of the basic test data and the test result messages via the network function module to the network device; and an output module connected to the control module and having a basic status prompt unit and a test result prompt unit, the basic status prompt unit having a plurality of LEDs for displaying corresponding information corresponding to the basic test data, the test result prompt unit displaying corresponding information corresponding to the test result messages.

Abstract: A device and method for examining a USB port of a test apparatus are characterized in that before a functional test is performed, with the test apparatus, on an electronic product equipped with a USB interface, the device including a USB connector, a connecting unit, and an alerting unit is connected to the USB port of the test apparatus so as to examine the power supply status of the USB port of the test apparatus. Accordingly, the electronic product equipped with the USB interface is efficiently protected against damage which might otherwise arise from unstable power supply to or an error in the USB port of the test apparatus during the ensuing functional test.

Abstract: An inspection fixture for inspecting an LED array of a circuit board under test through a power supply unit, includes: an inspection base having a testing platform with a plurality of pairs of anode and cathode probes corresponding to anode and cathode pins of the LEDs of the LED array, each pair being electrically connected to the power supply unit to constitute a power supply circuit; a carrier board used for carrying the circuit board under test and having through holes corresponding to the anode and cathode probes; and a pressing member for pressing the circuit board and driving the carrier board to move so as to enable the anode and cathode probes to pass through the through holes and come into contact with the anode and cathode pins of the LEDs, thereby supplying power to each of the LEDs to emit light through the power supply circuit.

Abstract: A device for measuring current is connected to a data processing apparatus loaded with a current value comparison program for performing a quality test on a portable electronic apparatus with a battery. The portable electronic apparatus has a battery compartment for receiving the battery.

Abstract: A waterproofing test device tests waterproofing performance of a unit under test (UUT). The UUT has thereon a test recess and an aperture. The aperture is hermetically sealed with a gas-permeable waterproof element. The waterproofing test device includes a carrying jig, a water-supplying unit, and a pressure-applying unit. The carrying jig carries the UUT and has a hermetic sealing portion and a gas-discharging through-hole disposed within the hermetic sealing portion. The water-supplying unit is disposed in the carrying jig and provided with a water outlet corresponding in position to the aperture of the UUT. The pressure-applying unit provides internal negative pressure for the UUT by discharging gas therefrom and tests internal pressure of the UUT. Further provided is a waterproofing test method for use with the device. Given the device and method, a waterproofing performance test can be performed on a UUT with an aperture or fissure by gas discharging.

Abstract: A production line includes a carrier board having a power socket that has a plurality of power lines and a plurality of conductive elements connected to the power lines, respectively; a track having a track body and a pair of track sidewalls; a plurality of electricity-collecting tracks provided on the track body for supplying different power signals; and a plurality of guarding units, each of which has a supporting frame perpendicularly provided on the track body and a covering sheet connected to the supporting frame for covering the electricity-collecting tracks, a plurality of crevices formed between each of the covering sheets; wherein each of the conductive elements has a contact end penetrating and extending into each of the crevices and flexibly contacting each of the corresponding electricity-collecting tracks so as to receive the different power signals and transmit the different power signals to the power lines of the power socket.

Abstract: A testing auxiliary apparatus for assisting a testing apparatus to test signals of testing points of a circuit board, includes: a testing base having a testing platform with probes vertically disposed thereon and corresponding to the testing points, and extension testing points exposed from the testing platform and electrically connected to the probes so as for the testing apparatus to test signals; a carrier board disposed on the testing base and capable of ascending and descending relative to the testing platform and including a positioning portion for positioning the circuit board and through holes corresponding to the probes; and a pressing member disposed on the testing base for pressing the circuit board and driving the carrier board to descend such that the probes come into contact with the testing points through the through holes, thereby avoiding the inconvenience of searching for testing points on the circuit board with high-density pins.

Abstract: A cut-edge positioning type soldering structure and a method for preventing a pin deviation can prevent a plurality of pins of an electronic component from being deviated when the pins are soldered onto a printed circuit board by a solder, and each of at least two solder pads includes at least two cut edges, and the solder pads are installed in an alignment direction on the printed circuit board, such that the cut-edge positioning type soldering structure and the method for preventing a pin deviation can improve the efficiency of manufacturing processes and reduce the manufacturing cost.