Abstract: A high-speed buffer amplifier includes an input stage including a first channel coupled to receive differential inputs and a second channel coupled to receive the differential inputs; a middle stage including a first current source coupled to receive outputs of the second channel and electrically connected to power, a second current source coupled to receive outputs of the first channel and electrically connected to ground, and a floating current source electrically connected between the first current source and the second current source; and an output stage coupled to the middle stage to generate an output voltage. A shunt circuit is electrically connected between the first current source and the second current source, and configured to bypass the floating current source.

Abstract: A multi-level voltage generator includes P-type metal-oxide-semiconductor (PMOS) transistors that generate corresponding positive voltages and a common voltage respectively, each PMOS transistor having a source connected to corresponding generated voltage, and a drain connected to an output node to provide the corresponding generated voltage; N-type metal-oxide-semiconductor (NMOS) transistors that generate corresponding negative voltages and the common voltage respectively, each NMOS transistor having a source connected to corresponding generated voltage, and a drain connected to the output node to provide the corresponding generated voltage; and body-voltage selectors that adaptively select a body voltage for the plurality of PMOS transistors and NMOS transistors respectively, except PMOS transistor associated with a highest positive voltage and NMOS transistor associated with a lowest negative voltage with body and source connected together.

Abstract: A micro-light-emitting diode (microLED) display panel includes a timing controller, and a plurality of drivers controlled by the timing controller and arranged in an order according to distance from the timing controller. Each driver includes a buffer that buffers a signal before being sent to a succeeding driver.

Abstract: A motion detection method includes providing a buffer including a first buffer associated with a background image and a second buffer associated with a foreground image; checking first similarity between the gray level of an input pixel and the first gray level of the first buffer; determining the input pixel as a still pixel if the first similarity is true; checking second similarity between the gray level and the second gray level of the second buffer; determining the input pixel as a moving pixel if the second similarity is false; determining the input pixel as the moving pixel if the second count value is less than the first count value; and determining the input pixel as the still pixel and swapping the first buffer with the second buffer, if the second count value is not less than the first count value.

Abstract: A process of overlay offset measurement includes providing a substrate; forming a first pattern layer with a predetermined first pattern on the substrate; forming a first photoresist layer on the substrate and the first pattern layer; forming a second photoresist layer on the first photoresist layer; forming a second pattern layer with a predetermined second pattern on the second photoresist layer; patterning the second photoresist layer to form a trench having a predetermined third pattern being substantially aligned with the predetermined first pattern of the first pattern layer; and performing overlay offset measurement according to the second pattern layer and the trench.

Abstract: A boost converter includes an inductor and a diode electrically connected in series between an input voltage and an output voltage; a transistor electrically coupled to an interconnected node of the inductor and the diode; and a controller that controls switching of the transistor according to a transient mode and an estimated load current. The output voltage in a light-to-heavy load transient mode has at least one first valley point with a value of a transient voltage threshold, followed by at least one second valley point with a value higher than the first valley point, before exiting the light-to-heavy load transient mode.

Abstract: A convolutional neural network (CNN) method includes determining a temporary buffer layer, which is located between a first layer and a final layer of a CNN system; performing convolutional operations from the first layer to the determined temporary buffer layer of the CNN system in a first stage to generate a feature map line according to partial input data of layers before the temporary buffer layer; and performing convolutional operations from the temporary buffer layer to the final layer of the CNN system in a second stage to generate a feature map.

Abstract: An overdrive system includes a compressor that compresses an input signal to result in a compressed signal; a weighting device that generates a weighted sum of a current compressed signal and a current input signal, thereby resulting in a weighted current signal; and an overdriver that performs an overdrive operation according to a previous compressed signal and the weighted current signal.

Abstract: A touch screen includes a touch panel including a plurality of touch blocks, and a knob, being touch-sensitive and rotatable, disposed on top of the touch panel. An area of the touch panel not covered with the knob is defined as a first area, an area of the touch panel covered with the knob is defined as a second area, and touch blocks belonging to both the first area and the second area are defined as overlapped blocks. Sense signals associated with the overlapped blocks are de-emphasized.

Abstract: An apparatus integrated with fingerprint recognition and touch detection is provided. The apparatus includes a touchpad and a controller IC. The touchpad has a touch area for recognizing a touch event and a fingerprint area for recognizing a fingerprint and the touch event. The fingerprint area includes TX lines of a first group crossing RX lines of a first group. The touch area includes TX lines of the first group and a second group crossing RX lines of the first group and a second group. When the apparatus is operated in a fingerprint sensing mode, the controller IC supplies a driving signal to the TX lines of the first group. When the apparatus is operated in a touch sensing mode, the controller IC supplies the driving signal to the TX lines of the second group and a portion of the TX lines of the first group.

Abstract: An image display system includes a motion detection device that detects motion of an object in an input image; and a black data insertion device that inserts black data in one frame of the input image, thereby generating an output image. A duty cycle of the inserted black data in the frame is changed according to a result of the motion detection device.

Abstract: An all-MOSFET voltage reference circuit includes a first cascaded branch configured to generate a bias current and composed of a first current source and a diode-connected first N-type transistor connected at a first interconnected node; a second cascaded branch composed of a second current source, a diode-connected second N-type transistor and a third N-type transistor connected with the second N-type transistor disposed in between, wherein the second N-type transistor and the third N-type transistor are connected at a second interconnected node; a third cascaded branch composed of a third current source and a diode-connected fourth N-type transistor connected at an output node that provides a reference voltage; and an amplifier with a non-inverting node coupled to the first interconnected node and an inverting node coupled to the second interconnected node. A threshold voltage of the third N-type transistor is larger than a threshold voltage of the second N-type transistor.

Abstract: A structured-light scanning system includes a plurality of switchable projectors that respectively generate emitted lights with a predetermined pattern, each switchable projector being capable of switchably generating either a two-dimensional (2D) emitted light or a three-dimensional (3D) emitted light; an optical alignment device that aligns the emitted lights to generate an aligned light, which is projected onto and reflected from a surface of an object, resulting in a reflected light; and an image sensor that detects the reflected light.

Abstract: A de-jaggy processing method includes dividing a display area of a display into a plurality of sub-areas; providing a first table composed of gray-level weights associated with corresponding luminances of each primary color for each said sub-area; providing a second table composed of distance-gain weights each correspondingly associated with a distance between a sub-pixel and a reference point; and obtaining a corrected luminance of a sub-pixel of a pixel by multiplying an original luminance of the sub-pixel by a corresponding gray-level weight and a corresponding distance-gain weight.

Abstract: A flexible printed circuit (FPC) board includes a base film, a pair of traces and a chip. The pair of traces are disposed on the base film, and each trace has opposite first and second terminals. The chip is disposed on the base film and has pins that are respectively coupled to the first terminals of the traces. When the FPC board is bonded to a panel through the second terminals of the traces that are shorted to each other, the chip is configured to transmit a detection signal through one of the pins and receive a reception signal through the other of the pins, and to determine whether the FPC board works normally with the panel depending on the reception signal.

Abstract: A touch panel includes a first electrode layer and a second electrode layer. The first electrode layer has transmitting electrodes arranged in transmitting channels and traces respectively coupled to the transmitting channels. The second electrode layer has receiving electrodes arranged in receiving channels. At least one of the traces, the transmitting channels and one of the receiving channels in proximity of the traces form touch detection blocks that respectively correspond to the transmitting channels. For each touch detection block, in a circle area overlapped with at least one of the traces and substantially in the touch detection block corresponding to one of the transmitting channels, a summation of areas of the corresponded transmitting channel and the trace coupled to the corresponded transmitting channel is substantially larger than a summation of areas of the other transmitting channels and the other traces.

Abstract: An operational amplifier includes a first output transistor and a second output transistor connected in series between two power nodes, the second output transistor having a semiconductor type opposite to the first output transistor, the first output transistor and the second output transistor being electrically coupled at an output node, and gates of the first output transistor and the second output transistor being connected to a first drive node and a second drive node respectively; and a decoupling capacitor circuit electrically connected between the first drive node and the second drive node.

Abstract: A hybrid depth estimation system includes a switchable projector that controllably projects either dot light or surface light onto an object; a sensor that receives reflected dot light or reflected surface light from the object to capture a first image or a second image respectively; a dot time-of-flight (ToF) depth generator that generates a dot depth map and an associated dot confidence map according to the first image; a surface ToF depth generator that generates a surface depth map according to the second image; and a denoise processor that processes the surface depth map according to a plurality of points on the dot depth map with high confidence, thereby generating a denoised depth map.

Abstract: An always-on system with multi-layer power management includes an always-on portion that is powered in shutdown state and all power states while rest portions of the system are not powered in the shutdown state; a memory unit that is powered in sleep state to retain data in the memory unit; an input interface that is powered only in event detection state, in which at least one captured image is received from an image sensor, the event detection state beginning when a trigger signal is issued; an event monitor that detects motion in the captured image; a digital signal processor (DSP) that is powered only in computer vision state to perform image identification on the captured image if motion is detected; and an output interface is powered only in the computer vision state, a result of the DSP being outputted via the output interface.

Abstract: A driving circuit adaptable to an electrophoretic display includes a first transistor and a second transistor electrically connected in series between a first positive voltage node and a first negative voltage node, the first transistor and the second transistor being interconnected at an output node; a third transistor electrically connected between the output node and a ground; a first voltage regulator that switchably provides one of a plurality of positive supply voltages to the first positive voltage node; a second voltage regulator that provides a negative supply voltage to the first negative voltage node; a switching circuit having a plurality of outputs electrically connected to the first transistor, the second transistor and the third transistor to turn on or off the first transistor, the second transistor and the third transistor respectively; and a controller that controls the first voltage regulator, the second voltage regulator and the switching circuit.