Abstract: A light measurement system measures light characteristics of a plurality of light sources and includes a processing unit, a plurality of capturing modules, a plurality of signal conversion units, and a demultiplexing unit. The processing unit generates a control signal for controlling the capturing modules to capture the light characteristics of the light sources. After capturing the light characteristics, the capturing modules output captured frequency-related data corresponding to the light characteristics respectively. Then, the capture frequency-related data are converted into capture bit codes by the signal conversion units respectively. Under the control of the processing unit, the demultiplexing unit selectively sends the capture bit code of each of the signal conversion units to the processing unit. Accordingly, the light measurement system measures the light sources synchronously and allows the demultiplexing unit to send the capture bit code of any one of the light sources to the processing unit.

Abstract: A back case for use with a portable electronic device has a connection element for electrical connection with the portable electronic device. The back case is characterized in that the back case has a back cover and a sidewall; the back case has a receiving space; the back cover has a plurality of holes; the holes are positioned proximate to an end side of the back cover; the portable electronic device is received in the receiving space provided by the back case; the holes provides a resilient deformation force for the back case, so as for the portable electronic device to be fixed in place by the sidewall. Due to the holes of the back case, the back case can be mounted on or dismounted from the portable electronic device easily.

Abstract: A HomePlug with a changeable top case structure includes a casing and a socket assembly. The casing has a first coupling portion therein and has an opening. The socket assembly has a second coupling portion for coupling with the first coupling portion, such that the socket assembly corresponds in position to the opening and thereby is coupled to the casing from inside and exposed from the opening. The HomePlug with a changeable top case structure is effective in dispensing with redesign and the manufacturing of a casing in its entirety, cutting die and material costs, enhancing ease of product design, and increasing assembly universality.

Abstract: A HomePlug having a panel replacement structure includes a HomePlug body and a panel. The HomePlug body has an operation side and a network port. The operation side has an insertion portion and a first coupling portion. The panel has an opening and second coupling portion. The second coupling portion can be coupled to the first coupling portion so as to allow the opening to correspond in position to the insertion portion. Changes in the appearance of the HomePlug are brought about by panel replacement. A heat dissipation vent is disposed at the junction of the operation side and an adjacent side, such that heat dissipation takes place at the adjacent side-neighboring portion of the heat dissipation vent when the panel is coupled to the operation side and covers the operation side.

Abstract: An overvoltage protection circuit and a portable electronic device having the same are introduced. The overvoltage protection circuit provides overvoltage protection when an input voltage exceeds a rated voltage tolerable by an internal circuit unit in the portable electronic device. A reference voltage and a partial voltage are generated from the input voltage through a voltage limiting unit and voltage dividing module, respectively, and conveyed to a comparing module for comparison. Comparison of the reference voltage and the partial voltage is followed by generation of a switch signal whereby a switch unit determines whether to apply the input voltage to the internal circuit unit. The voltage dividing module sets the maximum rated voltage tolerable by the internal circuit unit and enables the overvoltage protection circuit to give overvoltage protection to the portable electronic device regardless of temperature.

Abstract: A heat-dissipating casing for a communication apparatus accommodates a circuit board having a power element and includes an insulating case, a lid coupled to the insulating case, and a thermally conductive metal member. The insulating case has a receiving space, a first opening, and a second opening. The first and second openings communicate with the receiving space. The thermally conductive metal member is fixed to the inside of the insulating case, seals the second opening, and dissipates heat generated by the power element. The heat-dissipating casing is effective in dissipating heat, characterized by its low weight and low production costs, and conducive to protection and dust prevention.

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. Electromagnectic 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: An integrated temperature and humidity control device includes a temperature and humidity sensing element, a temperature and humidity sensing transmission interface, a computation processing module, a communication interface, and a display interface which are integrated with each other. The device performs local and remote fab temperature and humidity control simultaneously and allows on-site display of temperature and humidity levels at the fab. Accordingly, the device enables convenient simultaneous control and display of temperature and humidity levels and simplifies the layout thereof.

Abstract: A power consumption measuring device includes an analog-to-digital converter and an arithmetic unit and serves to convert a current signal supplied to a load into a measurement digital signal by the analog-to-digital converter, send the measurement digital signal to the arithmetic unit for measuring a power consumption level of the load. The power consumption measuring device is characterized in that: the arithmetic unit selects a current gain value and a correction compensation value based on a current range into which the measurement digital signal falls and adapted to adjust a gain value of the analog-to-digital converter for reducing an error rate and enhancing accuracy of the next measurement digital signal.

Abstract: In a press method, a housing is placed on a carrying table, and a panel is placed on a movable platform, and then a first driving unit is used for driving the movable platform to extended from an opening of a housing into the housing, such that the panel is fixed to a position corresponding to the window without touching an internal surface of the housing, and finally a press machine is used for driving the housing and the movable platform to engage with each other, such that the panel is combined with the interior of the housing for sealing the window. Therefore, the panel can be combined into a cramped space of the housing to overcome the defective issue of the prior art. In addition, a press tool adopting the press method is provided.

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 portable electronic device includes a body, a casing, and a resilient element. The casing accommodates the body such that the body can slide within the casing. The casing has an opening through which an electrical connection unit connected to the body protracts out of, or retracts into, the casing. The resilient element has an end connected to the casing and another end abutting against the body. The resilient element exerts a resilient restoring force upon the body in response to the sliding of the body. The casing has a stop structure configured to operate in conjunction with an engagement structure of the body and thereby limit the range of the sliding of the body. The engagement structure can be disengaged from the stop structure to separate the body from the casing. Accordingly, the portable electronic device has multiple uses, namely quick maintenance, easy assembly, body protection, and automatic accommodation.

Abstract: An electronic device carrier comprising a base and rolling devices. When an electronic device is removed from a receiving chamber of the base, the rolling devices can reduce friction effectively and resilient force of the rolling device can fix the electronic device in the receiving chamber. The electronic device carrier further includes a transmission unit for transmitting data whenever the electronic device is positioned in the receiving chamber.

Abstract: A tension testing device for use in a tension test for evaluating the strength of bond between a body and a pin of an electronic device includes a base, a tensiometer, a hanger, and a clamp. The base includes a supporting member and a carrying member, wherein the tensiometer is carried by the carrying member and includes a pulling portion. The hanger is coupled to the pulling portion for underpinning the body and project the pin in the direction of the base. The clamp is disposed on the base, positioned beside the hanger, for clamping the pin. The tension testing device protects the electronic device against test-induced deformation, dispenses with an intricate step of the welding and unwelding of the pin and a test lead, precludes a tension test-induced component of force, manifests ease of use, ensures test stability, and enhances test efficiency and reliability.

Abstract: A notch 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 one notch, and the solder pads are installed in an alignment direction on the printed circuit board, such that the notch positioning type soldering structure and the method for preventing a pin deviation can improve the efficiency of manufacturing processes and reduce the manufacturing cost.