专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明公开

US20230394225A1 TEXT COMPRESSION METHOD, MODULE, CHIP, ELECTRONIC DEVICE, AND STORAGE MEDIUM 审中-公开
公开(公告)号：US20230394225A1
公开(公告)日：2023-12-07
申请号：US18250196
申请日：2021-10-22
申请人： AMLOGIC (SHANGHAI) CO., LTD
发明人： Tao ZENG , Jianxin PAN
IPC分类号： G06F40/146 , G06F40/279
CPC分类号： G06F40/146 , G06F40/279
摘要： The present disclosure relates to a text compression method, module, chip, electronic device and storage medium, wherein the method comprises: performing word segmentation processing on texts to be compressed, and collecting statistics about word length and word frequency of the words obtained after the word segmentation processing to construct a corresponding keyword list; compressing the texts to be compressed based on the constructed keyword list. The above scheme is beneficial to improve the compression ratio of text compression.

22. 发明授权

US11710315B2 Method, electronic apparatus and storage medium for detecting a static logo of a video 有权
公开(公告)号：US11710315B2
公开(公告)日：2023-07-25
申请号：US17443843
申请日：2021-07-28
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Tao Ji , Zhihong He , Chun Wang , Dongjian Wang , Xuyun Chen
IPC分类号： G06V20/40 , G06T7/73 , G06V10/44 , G06F18/22 , G06V20/62
CPC分类号： G06V20/40 , G06F18/22 , G06T7/73 , G06V10/44 , G06V20/46 , G06V20/635 , G06T2207/10016
摘要： A method for detecting a static logo of a video, an electronic apparatus and a storage medium. The method includes: calculating a pixel grayscale flag value, an edge gradient flag value and an edge direction flag value; calculating, in a preset neighborhood centered on the pixel at each pixel position of the current video frame, a first local confidence degree of the pixel grayscale flag value, a second local confidence degree of the edge gradient flag value, and a third local confidence degree of the edge direction flag value respectively; calculating a contribution score of each local confidence degree and a total contribution score of each pixel position; and gathering the total contribution score of each pixel position of the current video frame, and determining a static logo in the current video frame according to the total contribution score of each pixel position.

23. 发明授权

US11653017B2 Method, video processing apparatus, device, and medium for estimating a motion vector of a pixel block 有权
公开(公告)号：US11653017B2
公开(公告)日：2023-05-16
申请号：US17305751
申请日：2021-07-14
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Zhihong He , Tao Ji , Chun Wang , Dongjian Wang , Xuyun Chen
IPC分类号： H04N7/12 , H04N19/513 , H04N19/132 , H04N19/137 , H04N19/176
CPC分类号： H04N19/513 , H04N19/132 , H04N19/137 , H04N19/176
摘要： A method for estimating a motion vector of a pixel block, a video processing apparatus, an electronic device and a storage medium. The method for estimating the motion vector of the pixel block includes: obtaining a plurality of candidate motion vectors of a current pixel block in a current video frame, the plurality of candidate motion vectors comprising at least a down-sampled candidate motion vector; calculating a confidence degree for a difference value between each of other candidate motion vectors except for the down-sampled candidate motion vector in the plurality of candidate motion vectors and the down-sampled candidate motion vector; and determining one candidate motion vector in the other candidate motion vectors as the motion vector of the current pixel block, the confidence degree for the difference value between the one candidate motion vector and the down-sampled candidate motion vector is highest.

24. 发明授权

US11490049B2 Method for selecting reference frame, electronic device, and storage medium 有权
公开(公告)号：US11490049B2
公开(公告)日：2022-11-01
申请号：US17305872
申请日：2021-07-16
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Yanling Liu , Tao Ji , Chun Wang , Dongjian Wang , Xuyun Chen
IPC分类号： H04N7/01
摘要： A method for selecting a reference frame, an electronic device, and a storage medium. The method includes: calculating a sum of absolute values of pixel brightness differences of corresponding pixel locations in a current frame and a previous frame in a video; determining frame attribute of the current frame based on the sum of absolute values of pixel brightness differences, the frame attribute including a raw frame and a duplicate frame; counting a number of raw frames in M historical frames previous to the current frame; obtaining a current frame interpolation step size based on the number of raw frames in the M historical frames; obtaining a next frame phase to be interpolated based on a current frame interpolation phase and the current frame interpolation step size; and determining an interpolation reference frame based on the next frame to be interpolated.

25. 发明授权

US11457188B2 Method and system for adjusting white balance, and display 有权
公开(公告)号：US11457188B2
公开(公告)日：2022-09-27
申请号：US17266945
申请日：2019-09-04
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Yong Wu
IPC分类号： H04N9/73 , G06T7/90 , H04N17/02
摘要： The invention discloses a method and system for adjusting white balance, and a display, and belongs to the technical field of display. The method for adjusting the white balance is applied to the display, and comprises the following steps: identifying image information of a currently played frame image to be adjusted; obtaining a matched target color temperature value according to the image information; and adjusting a white balance parameter of the frame image to be adjusted according to the target color temperature value. According to the method disclosed by the invention, by identifying the image information of the currently played frame image to be adjusted, and obtaining the matched target color temperature value according to the image information, the white balance parameter of the frame image to be adjusted is automatically adjusted according to the target color temperature value, the purpose of correspondingly adjusting the white balance parameter of the currently played frame image contents in real time can be achieved, so that the sense of tableau of the image is more realistic, and the visual effect is enhanced.

26. 发明授权

US11368633B2 Video switching method based on multi-channel decoding 有权
公开(公告)号：US11368633B2
公开(公告)日：2022-06-21
申请号：US16341502
申请日：2018-10-13
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Lei Qian , Yingwei Long
IPC分类号： H04N5/268 , H04N21/442 , H04N21/443
摘要： The present invention provides a video switching method based on multi-channel decoding and comprising: starting the intelligent device to accomplish an initialization operation of a system file; closing the display of an image layer, decoding and displaying an obtained boot video on the video layer; after a system desktop launcher is started, displaying a main interface on the image layer in a transparent form; after a system is started, the intelligent device creates and displays a display layer on the image layer, wherein a display area of the display layer is smaller than that of the image layer; and decoding and displaying remotely obtained video data on the display layer. The invention avoids the issue of waiting for the loading of the video data of the online video for playing after the boot video ends, resulting in a relatively long waiting time and lowering the user experience.

27. 发明授权

US11356198B2 Demodulation method, apparatus, device and computer readable storage medium 有权
公开(公告)号：US11356198B2
公开(公告)日：2022-06-07
申请号：US17443277
申请日：2021-07-23
申请人： AMLOGIC (SHANGHAI) CO., LTD
发明人： Chenglin Li
IPC分类号： H04L1/00 , H04L27/14 , H04L27/22
摘要： The present disclosure relates to a demodulation method, apparatus, and device. Some embodiments of the present disclosure are beneficial to improving demodulation performance.

28. 发明授权

US11356105B2 Method for calibrating crystal frequency offset through internal loop of central processing unit 有权
公开(公告)号：US11356105B2
公开(公告)日：2022-06-07
申请号：US16342048
申请日：2018-10-31
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Jie Feng , Kun Zhang
IPC分类号： H03B5/32 , G06F1/08 , H03L7/099 , H03L7/04
摘要： The invention provides a method for calibrating crystal frequency offset through an internal loop of a central processing unit (CPU), which comprises: outputting an oscillation exciting signal to a crystal circuit by the CPU; producing a clock signal by the crystal circuit; outputting the clock signal through an output port arranged on the CPU by the internal loop; and adopting and connecting a frequency meter to the output port, and receiving and testing the clock signal to obtain a testing result; determining whether a deviation of the clock signal is qualified; if it is qualified, the tester exits subsequently, otherwise the tester regulates the crystal circuit, and then turning to Step S4. The clock signal of the CPU is output at the output port through the internal loop, and then the frequency meter is used for measuring the clock without being influenced by a probe, and the measurement is more accurate.

29. 发明授权

US11315519B2 Control method for improving network performance 有权
公开(公告)号：US11315519B2
公开(公告)日：2022-04-26
申请号：US16662806
申请日：2019-10-24
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Jinping Wang , Wei Wang , Jing Liu , Wei Yu
IPC分类号： G09G5/00 , H04N21/4363 , H04N21/443 , H04N21/472
摘要： The invention provides a control method for improving network performance, comprising: each upstream device issues corresponding playing commands and performs filtering to the playing commands to obtain first available playing commands; a downstream device switches to a route where the first available playing commands is located, and then issues vendor command parameters; an implementation module receives the vendor command parameters, then enables a timer, and sets identification information; during the preset timer time period, the implementation module filters the first available playing commands to obtain second available playing commands; when the preset timer time period ends, the implementation module turns off the timer and resets the identification information; and the downstream device receives the second available playing commands and switches to a route where the second available playing commands is located. The present invention has the following advantageous effects: the network congestion and the transmission delay are reduced.

30. 发明申请

US20220058030A1 INTELLIGENT DEVICE AND METHOD FOR CONTROLLING BOOT SCREEN OF THE INTELLIGENT DEVICE 有权
公开(公告)号：US20220058030A1
公开(公告)日：2022-02-24
申请号：US16342455
申请日：2018-10-31
申请人： AMLOGIC (SHANGHAI) CO., LTD.
发明人： Tao Dong , Lei Qian , Yingwei Long , Zhiwei Gong , Lianghu Su , Siming Chen , Luan Yuan
IPC分类号： G06F9/4401 , G06F9/54
摘要： The invention provides an intelligent device and a method for controlling a boot screen of the intelligent device, applicable to the intelligent device supporting video hardware decompression. The method for controlling the boot screen of the intelligent device specifically comprises steps of: completing hardware initialization operation by the intelligent device, and storing a preset image in the first storage area, thereby enabling the image layer to display the preset image; starting a system kernel which controls the video driver module, and starting the video layer through the video driver module; reading the corresponding preset image in the first storage area, converting the preset image into video data, and writing the video data into the second storage area, thereby enabling the video layer to display the video data; and starting an application access to the system. The above-mentioned technical solutions show following beneficial effects: the whole startup process of the intelligent device from screen turn-on to startup completion can be realized, and the contents displayed on a screen of the intelligent device are all seamlessly connected, so that a phenomenon of black screen does not occur.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式