Abstract: A testing system for measuring an electronic device includes a main controller for generating a control signal, a signal generator for outputting a predetermined test input signal according to the control signal, an instrument unit having a plurality of instruments, and a testing port having a plurality of probes. The plurality of probes connects corresponding testing points of the electronic device to the signal generator and the instruments. The predetermined test input signal is transmitted to the electronic device via the testing port. The instrument unit processes a test result signal outputted by the electronic device and outputs a result data. The main controller receives the result data and computes whether the result data is within a predetermined range. A related testing method is also provided.

Abstract: A battery detection device for detection battery voltage of a device is provided. The device includes a voltage dividing circuit configured to provide an output voltage in proportion to the battery voltage, and a detection unit which includes a voltage detection module, a comparison module, a control module and a state detection module configured to obtain the device's state. The voltage detection module produces a digital detection voltage according to the output voltage every normal time interval initially, the comparison module detects whether the digital detection voltage is lower than a reference voltage corresponding to the state. If yes, the voltage detection module obtains digital detection voltage for predetermined times of abnormal time interval. The comparison module compares the digital detection voltage with the reference voltage to produce comparison results. The control module determines whether to maintain the device's state according to the comparison results.

Abstract: An exemplary testing system for measuring an electronic device includes a main controller for generating a control signal, a signal generator for outputting a predetermined test input signal according to the control signals, an instrument unit comprising a plurality of instruments, and a testing port comprising a plurality of probes. The probes are configured for connecting corresponding testing points of the electronic device to the signal generator and the instruments. The predetermined test input signal is transmitted to the electronic device via the testing port, the instrument unit processing a test result signals outputted by the electronic device and outputting a result data, and the main controller receiving the result data and computing whether the result data is within a predetermined range. A related testing method is also provided.

Abstract: A telephone line monitoring device is connected to a telephone line and adjacent to a telephone device using the telephone line. The telephone line monitoring device includes a rectifying circuit for generating a corresponding direct current voltage according to an effective voltage of the telephone line; a first controller for generating a first control signal when the direct current voltage is lower than a predetermined voltage; a second controller for detecting an operating state of the telephone device and generating a second control signal when the telephone device is operated; a load booster for pulling down the effective voltage of the telephone line when enabled; and a first switch circuit for disabling the load booster whenever receiving the second control signal, and enabling the load booster when receiving the first control signal while not receiving the second control signal. A monitoring method and a telephone device are also provided.

Abstract: An illumination adjusting device for receiving power from a power supply and supplying output voltage to a lighting unit is provided herein. The illumination adjusting device includes a detector for detecting ambient illumination intensity and generating an ambient illumination value according to the ambient illumination intensity; a comparator for comparing the ambient illumination value with a predetermined value, the comparator outputting a first power signal when the ambient illumination value is lower than a predetermined value; an adjustor for adjusting the output voltage according to the first power signal, as a result, light emitted by the lighting unit is controlled within a predetermined illumination intensity range. A related illumination adjusting method is also provided.

Abstract: An interface circuit and an electronic device are used for expanding an output port of a micro processing unit. The interface circuit includes an input port electrically connected to the output port of the micro processing unit for receiving a control signals, and a plurality of output ports selectively driven to control external circuits by inputting different values of the control signal at the input port.

Abstract: An apparatus for protecting a password includes a keypad, a generator, and a processor. The keypad includes numeric keys for inputting a numeral and a display unit for displaying a random digit. The generator is coupled to the display unit for generating the random digit. The processor is configured for receiving the inputted numeral and calculating the password based on the inputted numeral and the random digit.

Abstract: A reflection type liquid crystal display panel includes a polarizing plate, a first liquid crystal molecule, and a first corrective membrane. A longitudinal axis of the first liquid crystal molecule is perpendicular to the polarizing plate. The first corrective membrane is interposed between the polarizing plate the first liquid crystal molecule. The first corrective membrane is for correcting phase delay of polarizing light transmitted through the first liquid crystal molecule.

Abstract: A plasma display device includes a plasma display panel, a signal processor, a scan electrode driver, a sustain electrode driver, and an address electrode driver. The plasma display panel includes address electrodes, scan electrodes, and sustain electrodes. The signal processor is used for generating scan drive signals, sustain drive signals and address drive signals in operation. The operation includes an address period, a sustain period, and a set-up period. The address electrode driver may apply an excitation signal to the address electrodes during the sustain period. A drive method for the plasma display device is also disclosed.

Abstract: A video surveillance system includes a video camera, a display device, and a control apparatus. The video camera is used for capturing video images. The display device is used for displaying the video images. The control apparatus is used for controlling the video camera. The control apparatus includes a detector and a processing module. The detector is used for detecting an event and generating an event detected signal corresponding to the event. The processing module is used for enabling the video camera based on the event detected signal.