Abstract: An electronic device and its stylus pen having an FM antenna functionality are provided. The stylus pen includes a pen tip, a penholder, and a metal element spirally surrounding the penholder from a first end portion to a second end portion of the penholder. The pen tip is made of conductive material, the penholder is made of insulated material, and at least one end portion of the metal element is electrically coupled to the pen tip. When the pen tip is inserted into an antenna jack defined in the electronic device, the metal element of the stylus pen is electrically coupled via the pen tip to a radio receiving circuit arranged inside the electronic device. The metal element is thereby enabled to act as an FM antenna and is enabled to receive wireless signals from the radio receiving circuit and transmit wireless signals to the radio receiving circuit.

Abstract: A control chip for power saving is provided. The control chip is configured to operatively receive a first voltage and a first bias voltage. The control chip includes a microcontroller unit and a low power module. The low power module is coupled to the microcontroller unit. The microcontroller unit receives the first voltage to control the operation of at least one component under an operating mode and to stop receiving the first voltage under a power saving mode. The low power module operatively receives the first bias voltage. When the microcontroller unit switches from the operating mode to the power saving mode, the low power module operatively generates a first control signal to cause the microcontroller unit to stop receiving the first voltage. When the low power module detects a trigger signal, the power module operatively generates a second control signal to cause the microcontroller unit to continue receiving the first voltage.

Abstract: A method for mapping an input grayscale into an output luminance includes selecting a reference grayscale and a curvature according to an input grayscale; and generating an output luminance according to the reference grayscale, the curvature, and the input grayscale.

Abstract: A method for increasing a signal to noise ratio of a capacitive touch device and a capacitive touch device and a touch panel using the same are provided. The capacitive touch device includes a first sensing electrode, a second sensing electrode, a touch detector, a resonant inductor and a detection signal output circuit. An output terminal of the detection signal output circuit outputs a detection signal, such that the resonant inductor and an equivalent capacitor of the first sensing electrode are resonant, and the first sensing electrode receives a resonant sinusoidal wave. When an electric field signal detected by the detecting terminal of the touch detector is smaller than a preset value, it is determined that the capacitive touch device is touched.

Abstract: A color temperature compensation apparatus includes a compensation table and a controller. The compensation table records a relationship between a plurality of compensation values and each of a plurality of gray-levels, wherein the relationship is established based on a plurality of color temperature compensation curves. The controller is coupled to the compensation table, and generates a plurality of compensation values by referring to the compensation table according to a gray-level of each of a plurality of image data and a reference color temperature. The controller further calculates each of a plurality of compensated image data according to the compensation values, wherein the color temperature compensation curves respectively correspond to a plurality of color temperatures.

Abstract: This invention discloses a clock generation circuit and a clock generation method for generating a clock. The clock generation circuit includes a reference clock generation circuit, which is installed in a chip for independently generating a reference clock; a temperature sensor for sensing an ambient temperature to generate temperature information; a temperature compensation module, coupled to the temperature sensor, for generating a temperature compensation coefficient according to the temperature information; and a clock adjusting circuit, coupled to the clock generation circuit, for generating the clock according to the reference clock and the temperature compensation coefficient. The temperature compensation module generates the temperature compensation coefficient dynamically such that the frequency of the clock approaches a target frequency and does not substantially vary with the temperature.

Abstract: An image sharpening method and an image processing device are provided. The method includes: obtaining a plurality of pixels in an image; calculating a first weight of a high pass filter and a second weight of a first filter according to the pixels, and the first filter is a convolution of the high pass filter and a low pass filter; generating a sharpening filter according to the high pass filter, the first weight, the first filter and the second weight; and executing a sharpening operation on the pixels according to the sharpening filter. Accordingly, a sharpened image has better vision effects.

Abstract: An image display apparatus and an image optimization method are provided. The image display apparatus includes an image content analyzer, a luminance compensator, and an image optimization processor The image content analyzer receives image data and ambient luminance and generates a backlight luminance adjustment value according to the image data and the ambient luminance. The luminance compensator generates an image data luminance adjustment value according to the backlight luminance adjustment value and generates first image data by adjusting the luminance of the image data according to the image data luminance adjustment value. The image optimization processor generates a saturation adjustment weight according to the image data luminance adjustment value. According to the saturation adjustment weight, the image optimization processor generates output image data by adjusting the luminance of the first image data.

Abstract: An image processing apparatus for adjusting the luminance of a target pixel of an image is provided. The target pixel includes original pixel data and corresponds to a mask value. The image processing apparatus includes a luminance detection unit, a luminance compensation unit and a mapping unit. The luminance detection unit generates an original luminance value according to the original pixel data. The luminance compensation unit adjusts the original luminance value according to a non-linear function to generate a compensated luminance value. The mapping unit generates adjusted pixel data according to the compensated luminance value. The non-linear function at least includes a first monomial function, which has a base part associated with an inverse value of the original luminance value and an exponent part associated with the mask value.

Abstract: An electronic device and its stylus pen having an FM antenna functionality are provided. The stylus pen includes a pen tip, a penholder, and a metal element spirally surrounding the penholder from a first end portion to a second end portion of the penholder. The pen tip is made of conductive material, the penholder is made of insulated material, and at least one end portion of the metal element is electrically coupled to the pen tip. When the pen tip is inserted into an antenna jack defined in the electronic device, the metal element of the stylus pen is electrically coupled via the pen tip to a radio receiving circuit arranged inside the electronic device. The metal element is thereby enabled to act as an FM antenna and is enabled to receive wireless signals from the radio receiving circuit and transmit wireless signals to the radio receiving circuit.

Abstract: A road condition management method includes: obtaining geographical location information sent by at least one roadblock device, wherein each geographical location information comprises a geographical location of the corresponding roadblock device; storing the obtained geographical location information to a storage device; and generating a corresponding road condition prompting information related to an target area according to the geographical location information stored in the storage device in response to a search request for searching a road condition of the target area sent by a terminal device.

Abstract: A webcam includes an antenna, a storage unit and a processor. The storage unit stores a plurality of instructions. The processor is coupled to the storage unit, and executes the plurality of instructions to wirelessly receive angle information of a movement of a portable electronic device from an angle sensing unit of the portable electronic device by the antenna; and adjusts a shooting angle of the webcam based on the received angle information.

Abstract: A rotor core assembly for a reluctance motor and a manufacturing method of the same, wherein the rotor core assembly has multiple silicon steel laminations and a nonmagnetic material. The silicon steel laminations are axially stacked, and each silicon steel lamination has multiple magnetic flux sections. Each magnetic flux section has multiple arcuate grooves and multiple salient poles. The arcuate grooves are concentrically arranged. The salient poles protrude into the grooves. The nonmagnetic material is disposed in the grooves, and is wrapped around the salient poles, which enables the silicon steel laminations to remain securely assembled together. The salient poles are disposed in the grooves to avoid ruining the magnetic line of force. As a result, the rotor core assembly can keep rigidity of the assembled silicon steel laminations, and can keep the integrity of the magnetic circuit.

Abstract: The disclosed subject matter provides a communications device, a volume adjusting system and method. The communications device includes a loudspeaker, a microphone, and a communication unit. The communications device communicates with other communications devices via the communication unit. The communications device detects a first sound intensity of sound signals collected by the microphone, and detects a second sound intensity of sound signals received by the communication unit from the other communications devices. The communications device further adjusts the sound signals received by the communication unit according to a comparison result of the first sound intensity and the second sound intensity, and outputs the adjusted sound signals via the loudspeaker.

Abstract: An image sharpening method and an image processing device are provided. The method includes: obtaining a plurality of pixels in an image; calculating a first weight of a high pass filter and a second weight of a first filter according to the pixels, and the first filter is a convolution of the high pass filter and a low pass filter; generating a sharpening filter according to the high pass filter, the first weight, the first filter and the second weight; and executing a sharpening operation on the pixels according to the sharpening filter. Accordingly, a sharpened image has better vision effects.

Abstract: A signal relaying circuit includes an input interface arranged for receiving an input signal; a DisplayPort (DP) output interface arranged for outputting a DP-like signal, where the input interface and the DP output interface correspond to different interface standards; and a relaying circuit coupled between the input interface and the DP output interface, arranged for relaying the input signal to the DP output interface according to the characteristics of channels, so as to generate the DP-like signal. A signal receiving circuit, signal relaying method and signal receiving method are also disclosed.

Abstract: An image display apparatus and an image optimization method are provided. The image display apparatus includes an image content analyzer, a luminance compensator, and an image optimization processor The image content analyzer receives image data and ambient luminance and generates a backlight luminance adjustment value according to the image data and the ambient luminance. The luminance compensator generates an image data luminance adjustment value according to the backlight luminance adjustment value and generates first image data by adjusting the luminance of the image data according to the image data luminance adjustment value. The image optimization processor generates a saturation adjustment weight according to the image data luminance adjustment value. According to the saturation adjustment weight, the image optimization processor generates output image data by adjusting the luminance of the first image data.

Abstract: An image processing apparatus for adjusting the luminance of a target pixel of an image is provided. The target pixel includes original pixel data and corresponds to a mask value. The image processing apparatus includes a luminance detection unit, a luminance compensation unit and a mapping unit. The luminance detection unit generates an original luminance value according to the original pixel data. The luminance compensation unit adjusts the original luminance value according to a non-linear function to generate a compensated luminance value. The mapping unit generates adjusted pixel data according to the compensated luminance value. The non-linear function at least includes a first monomial function, which has a base part associated with an inverse value of the original luminance value and an exponent part associated with the mask value.

Abstract: An image display apparatus and a backlight adjusting method are provided. The image display apparatus has a backlight module. The image display apparatus includes an ambient light sensor, an image content analyzer and a backlight controller. The ambient light sensor detects a luminance of ambient light. The image content analyzer receives an image data. The backlight controller sets a backlight basic value according to the luminance of ambient light, and sets a backlight adjusting ratio according to the image data and the luminance of ambient light. The backlight controller further sets a luminance of the backlight module according to the backlight basic value and the backlight adjusting ratio.

Abstract: A polishing system for polishing a semiconductor wafer includes a wafer support for holding the semiconductor wafer, and a first polishing pad for polishing a region of the semiconductor wafer. The semiconductor wafer has a first diameter, and the first polishing pad has a second diameter shorter than the first diameter.