Amlogic (Shanghai) Co., Ltd.

A method and module for controlling the code rate of an encoder, and a chip, an electronic device and a storage medium. The method for controlling the code rate of an encoder comprises: when it is detected that an image processor receives an image frame to be processed, acquiring the state of a buffer pool; acquiring a corresponding noise reduction intensity according to the state of the buffer pool; and outputting the acquired noise reduction intensity to the image processor, so that the image processor performs noise reduction processing on the image frame by using the acquired noise reduction intensity, and outputting an image frame, which has been subjected to noise reduction processing, to an encoder, so that the encoder performs encoding processing on the image frame, which has been subjected to noise reduction processing. By means of the solution of the present application, the balance between image quality and an output code rate can be realized while an encoder has a low output code rate.

A memory management method and module, a chip, an electronic device, and a storage medium. The memory management method comprises: scanning memory pages to which virtual addresses of a discontinuous memory mapping space are mapped to acquire a compressible memory page as a first memory page; compressing memory data in the first memory page to acquire corresponding memory compressed data; storing the memory compressed data in a data storage module, the data storage module being located in memory space outside the discontinuous memory mapping space; after storing the memory compressed data in the data storage module, releasing the first memory page; and setting the corresponding virtual address as a page fault address. The memory utilization is improved.

The present disclosure discloses a wireless communication method, a wireless device and a computer storage medium. The wireless communication method includes generating a protocol data unit PPDU and performing a frequency domain resource duplication on the protocol data unit PPDU in units of a resource unit RU to obtain a final protocol data unit PPDU. This method can effectively solve the problem of narrowband interference caused by HB BLE devices to wireless devices.

A phase-locked loop circuit, a phase-locking method, and a frequency synthesizer are provided. The phase-locked loop circuit employs phase-rolling clock signal generator component to perform integer frequency division on multiple oscillation clock signals with uniformly varying phases to obtain multiple feedback clock signals with uniformly varying phases; and according to a preset clock cycle, select feedback clock signals with corresponding phase sequences from the multiple feedback clock signals with uniformly varying phases for concatenation, thereby generating the phase-rolling clock signal. This architecture enables fractional-N frequency division phase-locked loop operation. Compared with conventional fractional-N frequency division phase-locked loop implementations using sigma-delta modulator (SDM) circuits, the proposed solution reduces circuit area and power consumption while improving phase-locked loop performance.

Embodiments of the present disclosure provide a method and device for communication, a WiFi device, and a peer device. The method includes configuring in device coexistence information, wherein the in device coexistence information is used to indicate that a WiFi device supports only reception during a constrained WiFi time window. Embodiments of the present disclosure can effectively reduce the waste of air interface resources and increase the throughput of WiFi devices.

Disclosed are an advertising packet transmission method and system, a device, a storage medium, and a computer program product. The method includes: performing an advertising behavior for multiple times, the advertising behavior being used for transmitting advertising packets, where transmission-related parameters of the advertising behavior are reset at a specific time interval. The present disclosure helps to improve privacy in transmission of advertising packets.

A broadcast packet transmission method and system, a device, a storage medium, and a computer program product are provided. The method includes: obtaining a link layer data packet, the link layer data packet including a target data unit for repeated sending; performing duplication and encoding processing, and encoding the target data unit into a physical layer interval to obtain multiple physical layer intervals respectively carrying same target data unit information as repetition intervals; and sequentially transmitting the multiple repetition intervals. The present disclosure is conducive to improving the robustness of broadcast packet transmission.

A host system, a device system, a data transfer method, a storage medium, and a computer program product are provided. The data transfer method includes: initiating, by a host controller, a data transfer transaction, where each data transfer transaction includes a start-of-frame packet indicating a beginning of the data transfer transaction, a USB standard-based protocol interval exists between two adjacent start-of-frame packets, and when the host controller sends a plurality of data transfer transactions, an interval between two adjacent start-of-frame packets is less than the protocol interval; and performing a physical connection between a host physical layer and a device physical layer to implement a data transfer, where the data transfer has a USB standard-based protocol symbol rate, and during the physical connection, a symbol rate of the data transfer is greater than the protocol symbol rate. The present invention improves USB data transfer efficiency.

The present invention provides a multimedia product burn-in apparatus configured to test several multimedia products, including: a controller, configured to issue a running command; and a network server, connected to the controller and the several multimedia products respectively, the network server storing a test file, and the test file being generated by matching a signature and a log of the multimedia product, where the network server receives the running command to generate a control command, sends the test file to the several multimedia products according to the control command, and performs batch testing on the several multimedia products. The multimedia product burn-in apparatus saves a tester from repeatedly making individual changes to each multimedia product, achieves automated testing, and solves the problem of high manpower, material, and time costs caused by batch bum-in of the multimedia products in research and development and design stages.

A device and method for video decoding, wherein in the device for video decoding, an inverse transform circuit and an inverse quantization circuit cyclically share a data storage circuit, thereby eliminating the need to provide an additional storage circuit for the inverse transform circuit specifically for storing predicted residual coefficients for pixel positions in a current transform block to be processed, thereby saving the area of the device for video decoding.