38results about How to "Solve the flickering problem" patented technology

The light emitting LED pen includes a pen holder, a refill inside the pen holder, a battery, a light emitting circuit board, a LED, and a rotating assembly for shifting the refill up and down. The pen holder includes an upper part and a lower part of transparent non-metal material; the battery has positive pole connected electrically to the positive input end of the light emitting circuit board via conductor and negative pole connected electrically to the conducting spring via the metal refill cap and the negative pole spring, and the conducting spring has bottom end contacting the negative input end of the light emitting circuit board. The light emitting LED pen has stable lighting without being affected by the writing force.

The invention discloses a video playing switching method and a video playing switching device, which are used for avoiding mutual interference of video playing between different windows when playing videos in different windows. The method comprises the following steps: monitoring a video playing state of a first window and a second window state; and determining a video playing switching mode of the second window according to the video playing state of the first window and the second window state.

The invention provides a main controller of an LED lighting system, which expands the use range of lamps from LED display screens to the interior and exterior walls of buildings of any shape. It has excellent performance and wide application scenarios, including controllers and controllers. Electronic control connection: decoding chip, SRAM memory, network card chip, network transformer, the video signal is decoded by the decoding chip and input to the controller, the controller stores the video image data in the video into the SRAM memory, and synchronously reads and stores it in the The video image data in the SRAM memory, and forward the video image data through the network card chip, the network card chip sends the data signal to the network transformer in the form of a differential signal, and the network transformer is used for signal amplification and isolation protection. At the same time, the present invention also provides the The layout design of the main controller of the LED lighting system on the PCB.

The present application discloses a fingerprint unlocking method and related equipment. The method includes: when detecting the first touch operation of the finger on the fingerprint collection area, the TP sends a first interrupt request to the fingerprint sensor under the screen, and sends a second interrupt request to the processor. Two interrupt requests; after receiving the first interrupt request, the fingerprint sensor under the screen performs fingerprint collection operation, and sends the collected first fingerprint image to the processor for fingerprint recognition operation; after receiving the second interrupt request, process The processor executes the screen wake-up operation, and the screen wake-up operation adopts a parallel execution method to shorten the time required for the screen wake-up operation; after the screen wake-up operation is completed, the processor controls the touch screen to display the lock screen interface; when the fingerprint recognition is successful, the processor An unlocking operation is performed, and after the unlocking operation is completed, the processor controls the touch screen to display the main interface. The splash screen problem can be solved by adopting the embodiment of the present application.

The present application provides a proximity sensor and a control method thereof, an electronic device and a computer-readable storage medium. The proximity sensor control method includes: a receiving end and a transmitting end; the transmitting end includes a plurality of emitting light sources, and the difference between the sum of the emitting power of each emitting light source and the rated emitting power of the transmitting end is less than a preset value. The above-mentioned proximity sensor and its control method, electronic device and computer-readable storage medium can not only solve the problem of splash screen, but also ensure the detection distance.

The present application discloses a fingerprint unlocking method and related equipment. The method includes: when an event to be unlocked is detected, the TP sends a first interrupt request to the fingerprint sensor under the screen, and sends a second interrupt request to the processor; After an interrupt request, the fingerprint sensor under the screen performs fingerprint collection operation, and sends the collected first fingerprint image to the processor for fingerprint recognition operation; after receiving the second interrupt request, the processor executes the screen wake-up operation, and the screen wakes up The operation includes a delayed execution process, which is used to extend the time required for the screen wake-up operation, so that the screen wake-up operation is completed after the fingerprint recognition operation is completed; when the fingerprint recognition is successful, the processor performs an unlock operation, and when the unlock operation is completed, And after the screen wake-up operation is completed, the processor controls the touch screen to display the main interface. The splash screen problem can be solved by adopting the embodiment of the present application.

The invention discloses a backup power supply switchover protective system. The backup power supply switchover protective system comprises a backup power supply switchover device and a loop closing protective device, wherein the backup power supply switchover device is used for controlling a backup power supply to supply electricity when a main power supply malfunctions; the loop closing protective device is connected with the backup power supply switchover device and is used for protecting a backup power supply switchover loop when backup power supply switchover device performs switchover movement, wherein the backup power supply switchover loop comprises a backup power supply switchover device. According to the invention, the problem of flickering caused when the backup power supply switchover device resets automatically at low voltage in the prior art is solved.

The invention discloses a rotary LED light-emitting pen, which comprises a pen holder (1), a pen core (2), a rotating assembly (6), a battery (3), a light-emitting circuit board (4) and a light-emitting diode (5), wherein the pen holder The upper penholder (11) in (1) can rotate relative to the middle penholder (12), and the positive end (31) of the battery (3) is electrically connected with the positive input terminal (41) of the light-emitting circuit board (4), and the battery (3) ) negative terminal (32) is electrically connected to the negative input terminal (42) of the light-emitting circuit board (4) through the lower negative conductive spring (95), and the lower rotating member (62) in the rotating assembly (6) is connected to the middle An insulating rotary bushing (7) is tightly arranged between the penholders (12), and a metal sheet (8) is arranged on the insulating rotary bushing (7), and the upper penholder (11) and the metal sheet (8) are connected through conductive parts conduction. Compared with the prior art, the present invention achieves the core out of the pen core and the light of the LED through the ingenious design of the upper pen holder, the conductive part and the metal sheet by rotating the pen holder. Simple.

The present application discloses a fingerprint unlocking method and related equipment. The method includes: when detecting the touch operation of the finger on the fingerprint collection area, the TP sends a first interrupt request to the fingerprint sensor under the screen, and sends a second interrupt request to the processor. request; after receiving the first interrupt request, the fingerprint sensor under the screen performs the fingerprint collection operation, and sends the collected first fingerprint image to the processor for the fingerprint recognition operation, and the fingerprint collection operation adopts the first strategy to execute to increase The length of time required for the fingerprint collection operation, and / or the fingerprint recognition operation is performed using the second strategy to increase the time required for the fingerprint recognition operation; after receiving the second interrupt request, the processor performs a screen wake-up operation, and the screen wakes After the operation is completed, the touch screen is controlled to display the lock screen interface, the unlock operation is performed when the fingerprint recognition is successful, and the touch screen is controlled to display the main interface after the unlock operation is completed. The splash screen problem can be solved by adopting the embodiment of the present application.