Abstract: An object detection method and an object detection apparatus are disclosed. In the object detection method, a bitstream of a progressively encoded JPEG image is fetched from an image supply device, wherein the bitstream includes a header and a subset of a plurality of discrete cosine transform (DCT) coefficients of the JPEG image, the subset of the DCT coefficients is decoded according to information in the header to reconstruct a coarse scan image of the JPEG image; and an object detection is performed on the coarse scan image to detect an object in the JPEG image.

Abstract: A object detection method includes: receiving a plurality of blocks of the image information; performing a block-based discrete cosine transform (DCT) on a plurality of blocks to obtain a plurality of DCT-coefficient blocks respectively, wherein the DCT-coefficient block comprises a DC coefficient and a plurality of AC coefficients corresponding to difference frequencies; performing a Zig-Zag scanning operation on the plurality of DCT-coefficient blocks to obtain a plurality of DCT-coefficient strips respectively; concatenating at least two different DCT-coefficient strips as a modified DCT-coefficient strip; and performing an object detection operation by feeding the modified DCT-coefficient strip to a convolution neural network device.

Abstract: A current sensing circuit includes an output driving transistor with an output node that provides an output voltage; a diode-connected first transistor connected between the output node and a current circuit; a second transistor and a third transistor connected in series, the second transistor having a gate connected to a gate of the output driving transistor, and the third transistor having a gate connected to a gate of the first transistor; and a current measuring circuit connected in series with the second transistor and the third transistor to measure a current flowing through the second transistor and the third transistor.

Abstract: A method to form a light wave-guide optical element is disclosed. First, a flat organic optical layer is formed on an optically transparent substrate before using a template to transfer a pattern onto the flat organic optical layer to obtain a patterned organic optical layer. Then the patterned organic optical layer is cured in the presence of the template to obtain an organic optical material disposed on the optically transparent substrate before removing the template from the organic optical material. Later an anti-reflection stack is formed to conformally cover the organic optical material before applying an organic optical cover layer on the anti-reflection stack to cover the anti-reflection stack.

Abstract: An adaptive power system includes a multi-output reference voltage generator that generates multiple reference voltages; a low-voltage detector that detects a supply voltage and accordingly generates a power detect signal representing relationship between the supply voltage and at least one predetermined threshold; a selector that selects one of the multiple reference voltages according to the power detect signal, thereby outputting a selected reference voltage; a boost control circuit that generates a control signal according to the selected reference voltage; and a boost converter that generates power voltages according to the control signal.

Abstract: A display image compensation device includes a signal receiver, an offset information generator and a color value compensator. The signal receiver receives a display image. The first offset information generator, coupled to the signal receiver, based on a first selected color, generates first color offset information according to each of a plurality of gray levels of the display image corresponding to the first selected color. The color value compensator generates each of a plurality of compensated gray levels by adjusting each of the gray levels of the display image according to the first color offset information.

Abstract: A wavelength division device includes a substrate having one or more grooves, a plurality of filter bars disposed in the one or more grooves of the substrate, and a prism disposed on the substrate. Each of the filter bars corresponds to an optical filtering wavelength. The prism is used for to covering the plurality of filter bars. A surface of the substrate is etched to form the one or more grooves. After the plurality of filter bars are coated, the plurality of filter bars are bonded in the one or more grooves of the substrate. A resin disposed on the substrate is imprinted by a working mold to form the prism.

Abstract: A single-inductor bipolar-output converter includes a power stage that generates a positive output voltage and a negative output voltage; a first error amplifier that generates a first error signal according to the positive output voltage; a second error amplifier that generates a second error signal according to the negative output voltage; a summation device that generates a sum signal by adding the first error signal and the second error signal; and a tunable gain control circuit coupled to receive the first error signal and configured to generate an amplified first error signal with a tunable gain.

Abstract: A compensation circuit includes a computing processor, a DAC, and an amplifier circuit. The computing processor averages first digital codes to generate a first average digital code and averages second digital codes to generate a second average digital code. The second digital codes correspond to grayscale voltages provided from a source driver to pixels connected to a currently driven gate line. The first digital codes correspond to grayscale voltages provided from the source driver to pixels connected to a previously driven gate line. The DAC converts the first average digital code into a first voltage and converts the second average digital code into a second voltage, thereby generating a compensation signal transiting from the second voltage to the first voltage. The amplifier circuit generates an inverse noise signal according to the compensation signal and applies the inverse noise signal to an input terminal of the touch sensing circuit.

Abstract: A driving circuit is provided, including first to second output stage circuits that output, respectively, first and second voltages of a first polarity. The driving circuit further includes a first switch having a first terminal receiving the first voltage from the first output stage circuit and a second terminal coupled to a first output channel through a switching circuit, and a second switch having a first terminal receiving the second voltage from the second output stage circuit and a second terminal coupled to a second output channel through the switching circuit. The driving circuit further includes a first charge sharing circuit having a first terminal coupled to the first output channel and a second terminal coupled to the second output channel. The first charge sharing circuit is turned on to provide charge sharing between the first output channel and the second output channel.

Abstract: A power-saving image display system includes a visual feature analyzer that receives input image data and generates a visual feature ratio representing a brightness ratio of a full image to a feature area; a visual feature spatial gain device that generates visual feature spatial gains according to the visual feature ratio and original spatial gains; and a brightness adjustment device that adjusts brightness values of the input image data according to corresponding visual feature spatial gains, thereby generating output image data.

Abstract: A touch driving circuit is provided. The touch driving circuit includes a charge pump, a plurality of regulators, a plurality of digital to analog converters and a switch circuit. The charge pump is configured to output a plurality of currents. The plurality of regulators is coupled to the charge pump, and configured to output a plurality of charging voltages according to the plurality of currents. The plurality of digital to analog converters is coupled to the plurality of regulators, and configured to output a plurality of driving voltages according to the plurality of charging voltages. The switch circuit is coupled to the plurality of digital to analog converters and a touch panel, and configured to output the plurality of driving voltages in a time-sharing manner to form a driving signal for the touch panel.

Abstract: A host, a user identification system, and a user identification method are described herein. The host includes a storage circuit and a processor. The storage circuit is configured to store a program code. The processor is coupled to the storage circuit and configured to access the program code. The processor is configured to receive a touch signal from a touch screen. The processor is configured to determine an identification result indicating that whether the touch signal comprises a user identification signal or not. The processor is configured to determine a current operator of the touch screen based on the identification result. The processor is configured to perform an operation on the touch screen based on the current operator.

Abstract: A gate driver, a display device, and a driving method of a display panel are provided. The gate driver is coupled to a display panel with a plurality of scan lines. The gate driver includes an output enable control circuit and a channel scan circuit. The output enable control circuit receives an output enable signal and a touch input signal to provide an odd scan enable signal and an even scan enable signal. The channel scan circuit receives the odd scan enable signal, the even scan enable signal, a column pulse signal, and a scan timing signal to control the scan lines sequentially. During a long horizontal mode period, the output enable control circuit masks the odd scan enable signal and the even scan enable signal in a disabled state based on the touch input signal is enabled and the output enable signal is enabled.

Abstract: A depth sensing system includes a light-emitting device, a sensing module and a controller. The light-emitting device is configured to emit a light beam toward to a scene. The sensing module is configured to receive a reflective beam reflected from the scene to generate a scene image. The controller is electrically connected to the light-emitting device and the sensing module. The controller is configured to calculate an IQ image of the scene according to the scene image. The controller is configured to calculate confidence values of each pixel of the IQ image to generate a confidence image. The controller is configured to calculate a calibrated IQ image according to the confidence values, and then calculate a depth image of the scene. A depth sensing method is also provided.

Abstract: A display device and an operating method are provided. The display device includes a liquid crystal display (LCD) panel, a driver circuit, a switch circuit, and a timing controller. The LCD panel comprises a plurality of data lines. The driver circuit is configured to provide a first data signal to a first data line of the plurality of data lines in a first frame time. The switch circuit comprises a first switch configured to provide the first data signal to the first data line according to a first control signal. The timing controller is configured to provide the first control signal switching within a first voltage range when the first data signal has a first polarity, and provide the first control signal switching within a second voltage range different from the first voltage range when the first data signal has a second polarity.

Abstract: A time-of-flight (ToF) three-dimensional (3D) sensing system includes a projector that generates an emitted light corresponding to an emitted signal; a sensor that generates a received signal according to a reflected light; and a decoder that determines a distance between the sensor and the object according to the received signal. The emitted signal associated with the emitted light is generated in a basis period, and the received signal associated with the reflected light is generated by the sensor with a first phase shift with respect to a beginning of the basis period. No emitted light is generated in a supplemental period following the basis period, and the received signal has a second phase shift with respect to a beginning of the supplemental period. The distance between the sensor and the object is determined according to the first phase shift and the second phase shift.

Abstract: A three-dimensional (3D) scanning system includes a projector that generates an emitted light projected on an object, a reflected light being reflected from the object; a sensor that generates image data according to the reflected light; and a depth processor that generates depth data according to the image data and at least one modified factor representing corresponding deviation amount between the image data and an ideal image data due to a circle of confusion caused by the reflected light passing a lens of the sensor and then irradiating a sense plane of the sensor out of focus.

Abstract: A display driving device and a display driving method are provided. The display driving device includes an image analysis module and a brightness adjustment module. The image analysis module analyzes a display data to determine a brightness boost region in a display image corresponding to the display data. The brightness adjustment module is coupled to the image analysis module. The brightness adjustment module executes a brightness boost operation corresponding to the brightness boost region, and calculates an accumulated time of the brightness boost operation. When the brightness adjustment module determines the accumulated time exceeds a first preset time length threshold, the brightness adjustment module executes a brightness dimming operation corresponding to the brightness boost region.

Abstract: A light-emitting diode (LED) control system includes a LED array composed of a plurality of LED channels each being composed of a plurality of LEDs; a plurality of LED drivers connected in sequence each being configured to drive a corresponding LED channel, the LED channels being controlled in sequence by the LED drivers; and a LED controller that sends brightness data to the LED drivers, which in turn control brightness of the LEDs. After brightness data input has been transferred to an associated LED driver, the brightness data input is then replaced with status data returned by the associated LED driver, and the replaced status data is finally read by the LED controller via other LED drivers.