Abstract: A clock and data recovery device and a method for clock and data recovery are provided. The clock and data recovery device includes a digital loop filter. The digital loop filter generates a control signal according to a phase detection signal. The digital loop filter comprises a proportional gain circuit, a biased voting circuit, an integral gain circuit, an initial clock setting circuit, and a signal processing circuit. The biased voting circuit generates a biased voting value according to the phase detection signal and a preset range. The integral gain circuit generates an integral gain signal according to the biased voting value. The initial clock setting circuit provides an initial clock signal to an output node of the initial clock setting circuit in a start time period, and provides the integral gain signal to the output node of the initial clock setting circuit after the start time period.

Abstract: A sensing system for determining a position of an input object on a touch screen is proposed. The system includes a plurality of touch line receivers, a plurality of multiplexers (MUXs), and a plurality of analog-to-digital converters (ADCs). The plurality of touch line receivers is configured to receive a touch signal corresponding to the input object. Each MUX is coupled to N touch line receivers based on a predetermined mapping scheme, and the N touch line receivers are partitioned into a first receiver group and a second receiver group. Each ADC is coupled to a corresponding MUX and configured to convert the touch signal into a digital signal. The first receiver group is used for receiving the touch signal during a first time cycle, the second receiver group is used for receiving the touch signal during a second time cycle.

Abstract: A multi-function projector includes a multi-wavelength laser source, a metasurface, and a light sensor. The multi-wavelength laser source is configured to emit a laser beam, wherein a wavelength of the laser beam is capable of being switched to a first wavelength or a second wavelength. The metasurface is disposed on a path of the laser beam and configured to diffract the laser beam onto a projected surface. The metasurface is configured to diffract the laser beam with the first wavelength to form a light pattern on the projected surface, and the metasurface is configured to diffract the laser beam with the second wavelength to form flood illumination on the projected surface. The light sensor is disposed beside the metasurface and configured to sense the projected surface.

Abstract: An adaptive equalizer and the operation method thereof are provided. The adaptive equalizer includes an equalizing circuit, a decoder and an adaptive equalizing module. Based on a plurality of eye width gears and a plurality of eye height gears, the equalizing circuit generates recovery signal data according to a receiving signal. The decoder is coupled to the equalizing circuit. The decoder generates error count data according to the recovery signal data and correct bit data corresponding to the receiving signal. The adaptive equalizing module is coupled to the decoder and the equalizing circuit. The adaptive equalizing module generates an output eye width gear and an output eye height gear according to the error count data, such that the equalizing circuit compensates channel loss based on the output eye width gear and the output eye height gear.

Abstract: A touch system includes a stylus that generates a touch sensing signal, the stylus including a shaping device that sequentially shapes raw signals by only half of a window function a time, thereby generating a windowed signal as the touch sensing signal; and a touch screen coupled to receive the touch sensing signal.

Abstract: A power amplifier includes a voltage converter that converts an input voltage to a converted voltage; an output circuit coupled to receive the converted voltage and configured to generate an output voltage at an output node; a discharge transistor electrically connected between the output node and earth and configured to perform discharge at the output node under control of a control voltage; a voltage tracking circuit that tracks the input voltage; and an electric charge storage circuit being under control of the voltage tracking circuit and configured to maintain the control voltage when the input voltage drops to a predetermined voltage level in order to continuously turn on the discharge transistor before completing discharge at the output node.

Abstract: A driving signal generator includes a window function code generator, a sine wave code generator, an operation circuit and a signal converter. The window function code generator generates a first code corresponding to a window of a first sine wave. The sine wave code generator generates a second code corresponding to a second sine wave, wherein a frequency of the second sine wave is higher than a frequency of the first sine wave. The operation circuit is coupled to the window function code generator and the sine wave code generator, and performs an operation on the first code and the second code to generate an output code. The signal converter is coupled to the operation circuit and generates a touch driving voltage of a driving signal by converting the output code.

Abstract: A display driving device and a brightness compensation method are provided. The display driving device includes a brightness calculation module and a brightness boost module. The brightness calculation module is configured to calculate a plurality of brightness difference values between a first block and a plurality of second blocks adjacent to the first block, and calculate an average difference value of the plurality of brightness difference values. The brightness boost module is coupled to the brightness calculation module, and configured to obtain a brightness boost value according to the average difference value and an original brightness value of the first block. The brightness boost module is configured to boost a brightness of the first block according to the brightness boost value.

Abstract: A digital clock data recovery circuit is provided and includes a phase lock loop circuit and a frequency lock loop circuit coupled to the phase lock loop circuit. The phase lock loop circuit generates a recovery clock signal according to a pre-divider value, a feedback divider value, and an input reference clock signal. The frequency lock loop circuit adjusts one of the pre-divider value and the feedback divider value according to the input reference clock signal and an input data clock signal, thereby locking a frequency of the recovery clock signal to a frequency of the input data clock signal. The frequency lock loop circuit is implemented by a digital circuit. The digital clock data recovery circuit operates in a data recovery mode after the frequency of the recovery clock signal is locked.

Abstract: A display device, a driving device of a display panel and a driving method thereof are provided. The display device includes a display panel with data lines, a timing controller, a latch enable processing circuit, and a source driver. The timing controller provides a latch enable signal. The latch enable processing circuit generates a plurality of latch enable delay signals according to the latch enable signal, and provides a plurality of channel latch delay signals according to the latch enable delay signals. The channel latch delay signals vary with time by a time-varying control signal. The data lines of the display panel are grouped into data channels. The pixel data in the data channels are latched by the source driver. The source driver transfers the pixel data of the data channels while a corresponding one of the channel latch delay signals is enabled.

Abstract: A touch sensing circuit includes a plurality of receiving circuits. Each of the plurality of receiving circuits is coupled to a respective one of a plurality of sensing electrodes of a touch panel. Each of the plurality of receiving circuits comprises: a preceding integrator and a following integrator. The preceding integrator is, coupled to the respective one of the plurality of sensing electrodes and configured to generate a first integration signal. The following integrator is coupled to the preceding integrator and configured to generate a second integration signal based on the first integration signal generated by the preceding integrator in a same receiving circuit, and the first integration signal generated by the preceding integrator in an adjacent receiving circuit.

Abstract: A driver adaptable to a debugging system includes a driver controller, and a driver general-purpose input and output (GPIO) controlled by the driver controller. The driver GPIO directly transfers a debug log of status messages of a touchscreen to a host general-purpose input and output (GPIO) of a host without handshaking between the driver and the host.

Abstract: A depth completion method of sparse depth map includes: acquiring a grayscale image and a sparse depth map corresponding to the grayscale image; obtaining a nearest neighbor interpolation (NNI) image and a Euclidean distance transform (EDT) image based on the sparse depth map; inputting the grayscale image, the NNI image, and the EDT image into a neural network model, thereby outputting a predicted residual map; and generating a predicted dense depth map according to the predicted residual map and the NNI image.

Abstract: A circuit, for a touch panel, comprises a plurality of touch signal processing circuits, coupled to a plurality of sensors of the touch panel to receive a plurality of touch signals, wherein when a first sensor within the plurality of sensors is touched, the first sensor generates a first touch signal of the plurality of touch signals; and a controller, coupled to the plurality of touch signal processing circuits, configured to adjust the first touch signal according to the plurality of touch signals except the first touch signal.

Abstract: A driving device and the operating method thereof are disclosed. The driving device is adapted to drive an electronic paper display device. The driving device comprises a source driver and a timing controller. The source driver is coupled to the electronic paper display device, and configured to drive the electronic paper display device according to a source controlling signal. The timing controller is coupled to the source driver, and configured to receive input frame data, and to generate the source controlling signal according to the input frame data and lookup table information. The timing controller is configured to generate a source clock signal of the source controlling signal at a constant voltage level according to the lookup table information and the input frame data.

Abstract: A display driving device and a brightness compensation method are provided. The display driving device includes a brightness calculation module and a brightness boost module. The brightness calculation module is configured to calculate a plurality of brightness difference values between a first block and a plurality of second blocks adjacent to the first block, and calculate an average difference value of the plurality of brightness difference values. The brightness boost module is coupled to the brightness calculation module, and configured to obtain a brightness boost value according to the average difference value and an original brightness value of the first block. The brightness boost module is configured to boost a brightness of the first block according to the brightness boost value.

Abstract: A display driving circuit and a display driving method are provided. The display driving circuit includes a controller, a common voltage supply circuit, and a border voltage supply circuit. The controller generates a plurality of border voltage control signals and a plurality of common voltage control signals. The common voltage supply circuit outputs a common voltage to the display panel according to the plurality of common voltage control signals. The border voltage supply circuit outputs a border voltage to the display panel according to the plurality of border voltage control signals. When a voltage polarity of the common voltage is reversed, the common voltage supply circuit performs charge sharing by a common ground voltage.

Abstract: A display driving circuit and a display driving method are provided. The display driving circuit includes a controller, a common voltage supply circuit, and a border voltage supply circuit. The controller generates a plurality of border voltage control signals and a plurality of common voltage control signals. The common voltage supply circuit outputs a common voltage to the display panel according to the plurality of common voltage control signals. The border voltage supply circuit outputs a border voltage to the display panel according to the plurality of border voltage control signals. When a voltage polarity of the common voltage is reversed, the common voltage supply circuit performs charge sharing by a common ground voltage.

Abstract: An image processing system includes an image sensor, an object detector, an artificial intelligence (AI) inference engine and a mode controller. The image sensor is configured to capture an image. The object detector is configured to determine whether an object exists in the image, and utilize a bounding box to frame the object to obtain a region of interest (ROI) image after determining that the object exists in the image. The artificial intelligence (AI) inference engine is configured to recognize the ROI image to obtain a recognition result. The mode controller is configured to compare an ROI size of the ROI image with a lower limit of a ROI size threshold, and switches the image processing system to a crop mode or a binning mode.

Abstract: A discharge circuit includes a first subcircuit and a second subcircuit. The first subcircuit is coupled between a power supply voltage and a first reference voltage. The first subcircuit is enabled to provide a first discharge path between the power supply voltage and the first reference voltage, and generates a discharge control signal. The second subcircuit is coupled between the power supply voltage and a second reference voltage. The second subcircuit is coupled to the first subcircuit for receiving the discharge control signal, and the second subcircuit provides a second discharge path between the power supply voltage and the second reference voltage according to the discharge control signal.