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    • 2. 发明申请
    • Secure Internal Control for Encrypting Video Data
    • 用于加密视频数据的安全内部控制
    • US20160105714A1
    • 2016-04-14
    • US14620973
    • 2015-02-12
    • Silicon Image, Inc.
    • Hoon ChoiWooseung YangJu Hwan Yi
    • H04N21/4408H04N21/4363H04L29/06
    • H04N21/4408H04L63/0428H04L63/205H04N21/43635H04N21/438
    • In one aspect, a video processing device includes a processor and a transmitter, for example implemented as separate integrated circuits on a printed circuit board. Pins on the processor are coupled to pins on the transmitter via a data channel, for example conductive leads on the printed circuit board. Video data is transmitted from the processor to the transmitter via this data channel, which is high speed enough to accommodate video data. The transmitter also includes an encryption engine used to encrypt the video data. Encryption control data, which determines the encryption to be applied, is transmitted from the processor to the transmitter over the same data channel as the video data. This is more secure than transmitting the encryption control data over a slower separate data channel, because the high speed video channel is harder to tamper with.
    • 在一个方面,视频处理设备包括处理器和发射器,例如在印刷电路板上实现为单独的集成电路。 处理器上的引脚经由数据通道(例如印刷电路板上的导电引线)耦合到发射器上的引脚。 视频数据经由该数据信道从处理器发送到发射机,该数据信道足够高以适应视频数据。 发射机还包括用于加密视频数据的加密引擎。 确定要应用的加密的加密控制数据通过与视频数据相同的数据信道从处理器发送到发送器。 这比通过较慢的单独数据通道传输加密控制数据更安全,因为高速视频通道更难被篡改。
    • 5. 发明申请
    • Orthogonal Data Organization for Error Detection and Correction in Serial Video Interfaces
    • 串行视频接口中错误检测和校正的正交数据组织
    • US20150281743A1
    • 2015-10-01
    • US14673378
    • 2015-03-30
    • Silicon Image, Inc.
    • Ju Hwan YiLaurence Alan Thompson
    • H04N19/89H03M13/00
    • H04N19/89H03M13/1515H03M13/152H03M13/19H03M13/2707H03M13/6312H04N19/65
    • A source device receives digital data comprising uncompressed video data and its associated metadata and compresses the video data. The source device generates an error code for each data word representing the compressed video data and its associated metadata. The data word and its corresponding error code are combined to form a code word. The source device organizes code words of the video data and its metadata into orthogonal data blocks and transmits the data blocks to a sink device. The sink device decodes corrupted data bits in the received data based on analysis of the error codes of the code words in the data blocks. Organizing code words into orthogonal data blocks helps isolate corrupted data bits in data blocks and enables the sink device to detect and correct corrupted data bits resulting from a single transmission error and to detect corrupted data bits resulting from multiple transmission errors.
    • 源设备接收包括未压缩视频数据及其相关元数据的数字数据并压缩视频数据。 源设备为表示压缩视频数据及其关联元数据的每个数据字生成错误代码。 数据字及其相应的错误代码被组合形成一个代码字。 源设备将视频数据及其元数据的代码字组织成正交数据块,并将数据块发送到宿设备。 宿设备基于数据块中代码字的错误代码的分析,对接收到的数据中的损坏的数据位进行解码。 将代码字组织成正交数据块有助于隔离数据块中的损坏的数据位,并使宿设备能够检测和纠正由单个传输错误导致的损坏的数据位,并检测由多个传输错误导致的损坏的数据位。
    • 9. 发明申请
    • Error Detection and Mitigation in Video Channels
    • 视频通道中的错误检测和缓解
    • US20150326884A1
    • 2015-11-12
    • US14275692
    • 2014-05-12
    • Silicon Image, Inc.
    • Young Don BaeWooseung YangJu Hwan YiHoon Choi
    • H04N19/65H04N19/182H04N19/172
    • H04N19/895H04N19/172H04N19/182H04N19/65
    • A system for detecting and mitigating bit errors in transmitted media is described herein. A source device encodes a frame of video, and generates an error code representative of a portion of the encoded frame of video. The portion of encoded frame and the error code are provided to a sink device via a communication channel, such as an HDMI or MHL3 channel. A second error code is generated by the sink device based on the portion of encoded frame, and the error code and second error code are compared to determine if the portion of encoded frame includes an error. If no error is detected, the portion of encoded frame is decoded and outputted. If an error is detected, the portion is replaced with frame data based on at least one other portion of encoded frame to produce a mitigated frame, and the mitigated frame is outputted.
    • 本文描述了用于检测和减轻传输介质中的位错误的系统。 源设备对视频帧进行编码,并产生代表编码的视频帧的一部分的错误代码。 编码帧的部分和错误代码经由诸如HDMI或MHL3信道的通信信道提供给宿设备。 基于编码帧的部分由宿设备生成第二错误代码,并比较错误代码和第二错误代码以确定编码帧的部分是否包括错误。 如果没有检测到错误,编码帧的部分被解码并输出。 如果检测到错误,则基于编码帧的至少一个其他部分将该部分替换为帧数据,以产生缓解的帧,并且输出缓和的帧。