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    • 1. 发明授权
    • Video signal attenuation equalization circuit, processing apparatus, and control device and method
    • 视频信号衰减均衡电路,处理装置及控制装置及方法
    • US09491399B2
    • 2016-11-08
    • US14442101
    • 2013-05-23
    • Zhejiang Dahua Technology Co., Ltd.
    • Jun YinZhicheng YeZhuqiang BaoYun XieXingming ZhangLiquan FuJiangming ZhuJun WuJian Wu
    • H04N5/21H04N7/10
    • H04N7/104H04B3/04H04H20/78H04L25/03H04L25/03878H04N7/102
    • Disclosed are a video signal attenuation equalization circuit, a video signal processing apparatus, and a control device and method, which are used for solving the problem that the transmission of an analog video signal is distorted after the analog video signal is transmitted by a coaxial cable, so as to guarantee low signal distortion after the video signal is transmitted at a long distance. The video signal attenuation equalization circuit provided in the embodiments of the present invention comprises: a signal driving circuit, an equalization unit and an analog switch unit, wherein the signal driving circuit is connected to the equalization unit and the analog switch unit, and is used for receiving and strengthening an initial video signal, and sending the obtained strengthened initial video signal to the equalization unit and the analog switch unit; the equalization unit is used for performing attenuation equalization on the strengthened initial video signal according to the triggering of a control signal, and after the attenuation equalization sending the video signal to the analog switch unit; and the analog switch unit is used for outputting the strengthened initial video signal or the video signal sent by the equalization unit after the attenuation equalization according to the control of the control signal.
    • 公开了一种视频信号衰减均衡电路,视频信号处理装置和控制装置及方法,用于解决模拟视频信号在通过同轴电缆传输之后模拟视频信号的传输失真的问题 ,以便在长距离传输视频信号后保证低信号失真。 本发明实施例提供的视频信号衰减均衡电路包括:信号驱动电路,均衡单元和模拟开关单元,其中信号驱动电路连接到均衡单元和模拟开关单元,并被使用 用于接收和加强初始视频信号,并将获得的加强的初始视频信号发送到均衡单元和模拟开关单元; 均衡单元用于根据控制信号的触发对强化的初始视频信号执行衰减均衡,并且在将视频信号发送到模拟开关单元之后进行衰减均衡; 并且模拟开关单元用于根据控制信号的控制在衰减均衡之后输出由均衡单元发送的加强的初始视频信号或视频信号。
    • 4. 发明申请
    • HIGH-DEFINITION DIGITAL VIDEO SIGNAL TRANSMISSION METHOD AND DEVICE, CAMERA AND ACQUISITION DEVICE
    • 高分辨率数字视频信号传输方法和设备,摄像机和采集设备
    • US20150077631A1
    • 2015-03-19
    • US14391554
    • 2013-05-16
    • ZHEJIANG DAHUA TECHNOLOGY CO., LTD
    • Jun YinZhicheng YeBingyun LvXingming ZhangLiquan FuJiangming ZhuJun WuJian Wu
    • H04N7/01H04N5/40H04N7/015
    • H04N7/0125H04N5/40H04N7/007H04N7/015H04N11/002H04N11/20
    • Disclosed are a high-definition digital video signal transmission method and device, a high-definition digital video camera and a video acquisition device. The technical solution provided in the embodiments of the present invention comprises: transcoding a high-definition digital video signal in accordance with a line-by-line sequence at a sending end to obtain an analogue video line signal, and sending analogue video line data which is obtained by conversion; and receiving the analogue video line data at a receiving end, and conducting decoding conversion on the received analogue video line data to obtain high-definition digital video line data. The present invention can convert a high-definition digital video signal into an analogue video signal to conduct transmission, thereby being able to solve the problem that a high-definition digital video signal cannot be transmitted for a long distance in the existing high-definition digital video monitoring technology.
    • 公开了高分辨率数字视频信号传输方法和装置,高分辨率数字摄像机和视频采集装置。 在本发明的实施例中提供的技术方案包括:根据发送端的逐行序列对高分辨率数字视频信号进行代码转换,以获得模拟视频行信号,并发送模拟视频行数据, 通过转换获得; 并在接收端接收模拟视频行数据,并对所接收的模拟视频行数据进行解码转换以获得高分辨率数字视频行数据。 本发明可以将高分辨率数字视频信号转换为模拟视频信号进行传输,从而能够解决高分辨率数字视频信号在现有的高清数字视频信号中长距离传输的问题 视频监控技术。