Abstract: A communication device includes: a receiving circuit, for receiving a data unit from a transmitter; a comparing circuit, coupled to the receiving circuit, for comparing a target station identity (STAID) with a STAID in the data unit, to generate a comparison result; a processing circuit, coupled to the comparing circuit, for performing a cyclic redundancy check (CRC) according to the comparison result and a check code in the data unit, to generate a check result, and for determining a frequency resource according to the check result and an extremely high throughput signal (EHT-SIG) field in the data unit; and a transmitting circuit, coupled to the processing circuit, for transmitting the frequency resource to a demodulation circuit.

Abstract: An adaptive data rate method for use in a communication device. The communication device includes a controller and a transceiver coupled to each other. The method includes the controller increasing an initial data rate to generate a test data rate, and the transceiver transmitting a test packet according to the test data rate, a packet length of the test packet being less than a maximum packet length of a data packet. The method further includes the controller selecting one from the initial data rate and the test data rate as a selected data rate according to a transmission result of the test packet, and the transceiver transmitting the data packet according to the selected data rate.

Abstract: A method for displaying a video stream on a display device with a variable refresh rate function is provided. The method includes: receiving the video stream and decoding the video stream to generate a plurality of decoded video frames; determining a frame ready time for each of the decoded video frames; determining a frame display time for each of the decoded video frames; determining a target refresh rate for the display device based on a frame latency between the frame ready time and the frame display time corresponding to at least one of the decoded video frames; and controlling the display device to display the video stream at the target refresh rate.

Abstract: A low-dropout (LDO) regulator and operation method thereof are provided. The LDO regulator may include a reference voltage generation circuit, an operational amplifier, a transistor and a multiphase configuration switching control circuit. The operation method may include: performing a first configuring operation to enable a first dedicated current path corresponding to a first phase to allow a target reference voltage used in LDO regulating mode to reach a first predetermined range after the first configuring operation is performed; performing a second configuring operation to enable a second dedicated current path corresponding to a second phase to allow the target reference voltage to reach a second predetermined range after the second configuring operation is performed; and performing a third configuring operation to allow the target reference voltage to be used as a reference voltage input into the operational amplifier in the LDO regulating mode after the third configuring operation is performed.

Abstract: A method for system profiling and controlling and a computer system performing the same are provided. In the method, an operating system is operated after the computer system is booted, in which a profiling-controlling system is operated. When the operating system loads and executes a system profiling-controlling program, the profiling-controlling system that simultaneously operates a profiling routine and a controlling routine is initiated. The profiling routine is used to retrieve system kernel data that is generated during operation of the operating system and analyze the system kernel data through a kernel tracing tool. When it is determined that controlling is required, the profiling routine notifies the controlling routine. The controlling routine controls operating parameters of the operating system in real time according to an analysis result generated by the profiling routine.

Abstract: A first packet flow and a second packet flow support a first protocol, a third packet flow and a fourth packet flow support a second protocol, and a priority of the first protocol is lower than a priority of the second protocol. The first packet flow and the third packet flow are transmitted from a first ingress port to a first egress port. The second packet flow and the fourth packet flow are transmitted from a second ingress port to a second egress port. When the packet processing device is in a congested state, a bandwidth modulator performs a first suppression process on the first packet flow at the first ingress port, and the bandwidth modulator performs a second suppression process on the second packet flow at the second egress port or on the third packet flow at the first ingress port.

Abstract: An electric package device is provided, including a first chip and a second chip. The first chip includes a first conductive pad. The second chip includes a second conductive pad. The second conductive pad couples to the first conductive pad through a connection wire. In some embodiments, the first chip includes a first signal control circuit that receives, in response to a selection signal, one of multiple input signals as a first signal, filters the first signal, and outputs the filtered first signal, as a second signal, from the first conductive pad to the second conductive pad.

Abstract: An output stage of an Ethernet transmitter is provided. The output stage is coupled to a resistor and includes a first output terminal, a second output terminal, a first transistor, and a first transistor group. The resistor is coupled between the first output terminal and the second output terminal. The first transistor has a first source, a first drain, and a first gate, the first source being coupled to a first reference voltage and the first drain being coupled to the second output terminal. The first transistor group is coupled to the first reference voltage and the first output terminal. The first transistor group includes multiple transistors which are connected in parallel, and the magnitude of the current flowing to the first output terminal is related to the number of transistors that are turned on.

Abstract: A duty cycle detector includes a current steering network configured to steer a first current into a second current to charge a first capacitor when a clock is in a first state, and to steer the first current into a third current to charge a second capacitor when the clock is in a second state; a first charge sharing switch configured to enable charge sharing between the first capacitor and a third capacitor when the clock is in the second state; a second charge sharing switch configured to enable charge sharing between the second capacitor and a fourth capacitor when the clock is in the first state; a first discharging network configured to discharge the first capacitor when the clock is in a first state; and a second discharging network configured to discharge the second capacitor when the clock is in a second state.

Abstract: An image processing method includes following operations: generating, by a processor, a sliding window for a target pixel in a plurality of pixels in image data; generating, by the processor, an original brightness histogram of the sliding window according to an original bit depth; generating, by the processor, a low-bit-depth brightness histogram of the sliding window according to a low bit depth; determining, by the processor, a target low-bit-depth range from the low-bit-depth brightness histogram according to the target pixel; extracting, by the processor, a partial original brightness histogram from the original brightness histogram according to the target low-bit-depth range; and performing, by the processor, a histogram equalization process on the partial original brightness histogram according to the original bit depth to generate a final brightness value of the target pixel.

Abstract: A waterproof-state recognition and processing method and device is applicable to a capacitive touch screen. The method and device can differentiate a water-affected region from a water-free region, and allow a touch-responding operation for the water-free region when the water-affected region exists. The method includes: scanning the screen to obtain data of multiple channels of the screen; determining whether any of the data reaches a waterproof threshold; when any of the data reaches the waterproof threshold, performing a waterproof-state process; when none of the data reaches the waterproof threshold, determining whether any of the data reaches a finger-touch threshold; when any of the data reaches the finger-touch threshold, performing a finger-touch-state process; and when none of the data reaches the finger-touch threshold, performing an idle-state process.

Abstract: A method and an apparatus for measuring linearity of a tested circuit are provided. The method includes: utilizing a signal generator to output a first tone signal and a second tone signal, wherein the tested circuit generates an intermodulation signal according to the first tone signal and the second tone signal; utilizing a signal analyzing device to detect an intermodulation power of the intermodulation signal; utilizing the signal generator to further output a cancel tone signal and control a cancel power of the cancel tone signal according to the intermodulation power; and utilizing the signal analyzing device to detect a total power of the intermodulation signal and the cancel tone signal, and controlling a phase of the cancel tone signal according to the total power, in order to minimize the total power in response to the phase of the cancel tone signal being modified to a target phase.

Abstract: A balun includes a first coil, a second coil, a third coil, a fourth coil, and a capacitor. The first coil is coupled between an unbalanced pin and a first ground terminal. The second coil is coupled between the first ground terminal and a second ground terminal. The third coil is coupled between a first balanced pin and a connection point and is inductively coupled to the first coil. The fourth coil is coupled between the connection point and a second balanced pin and is inductively coupled to the second coil. The capacitor is coupled between the connection point and a third ground terminal.

Abstract: The present disclosure provides a circuit and a method thereof for setting an SDRAM. The circuit includes at least one register and a controller circuit. The controller circuit is configured to: control the SDRAM to switch to an initialization setting mode, wherein the initialization setting mode is utilized for initialing the SDRAM; set value of the at least one register under the initialization setting mode; and set the SDRAM according to the value of the at least one register.

Abstract: An image display method, comprising the following steps: receiving an image signal from a graphics processor by an image processor, wherein the image signal is configured to drive a display panel to display a main image; enlarging a target area in the main image to form a first enlarged image according to an enlargement command; modifying the first enlarged image into a non-rectangular image to use the non-rectangular image as a second enlarged image; and driving the display panel to display the main image and the second enlarged image simultaneously by the image processor, wherein the second enlarged image is overlapped on the main image.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE (Bluetooth Low Energy) audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data; and a host device arranged to operably generate and transmit a target control command to the first and second Bluetooth member devices when the first or second Bluetooth member device receives an alert signal, or when a specific ambient sound occurs in the surrounding environment of the first or second Bluetooth member device.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE (Bluetooth Low Energy) audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data; and a host device arranged to operably generate and transmit a target control command to the first and second Bluetooth member devices when the host device receives an alert signal, or when a specific ambient sound occurs in the surrounding environment of the host device.

Abstract: A method for calibrating a data reception window includes: (A) setting a level of a reference voltage by different predetermined values and repeatedly sampling a data signal to obtain multiple first valid data reception windows; (B) establishing a first eye diagram based on the first valid data reception windows; (C) resetting the level of the reference voltage by the predetermined values combined with a first offset and repeatedly sampling the data signal according to the reference voltage to obtain multiple second valid data reception windows and (D) selectively updating the first eye diagram according to the second valid data reception windows. When width of a second valid data reception window is greater than width of a first valid data reception window corresponding to the same predetermined value, the first valid data reception window in the first eye diagram is replaced by the second valid data reception window.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE (Bluetooth Low Energy) audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; and a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data. When the first or second Bluetooth member device receives an alert signal, or when a specific ambient sound occurs in the surrounding environment of the first or second Bluetooth member device, the audio broadcasting device utilizes a target control command to instruct the first and second Bluetooth member devices to synchronously reduce their volume to be lower than a predetermined threshold.

Abstract: A self-protection circuitry is configured to receive a first power source. The self-protection circuitry includes a first transistor circuit, a first switch circuit, and a control circuit. The first transistor circuit includes a first input terminal, a first output terminal, and a first control terminal. The first input terminal is configured to receive the first power source. The first output terminal is electrically connected to a ground terminal. The first switch circuit is electrically connected to the first input terminal and the ground terminal. The control circuit is electrically connected to the first switch circuit, and is configured to: before the first power source supplies power to the first transistor circuit, control the first switch circuit to be turned on, and after the first power source continuously supplies power to the first transistor circuit, control the first switch circuit to be turned off.