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    • 2. 发明申请
    • CODING DEVICE AND METHOD WITH RECONFIGURABLE AND SCALABLE ENCRYPTION/DECRYPTION MODULES
    • 具有可重构和可扩展加密/分解模块的编码设备和方法
    • US20100278338A1
    • 2010-11-04
    • US12435349
    • 2009-05-04
    • Yu-Lin ChangWensheng Zhou
    • Yu-Lin ChangWensheng Zhou
    • H04N7/167H04L9/28G06F21/00
    • G09C1/00H04L9/0662H04L9/16H04L2209/12H04L2209/60
    • A reconfigurable and scalable cryptography (encryption/decryption) system architecture and related method are described. The system utilizes a multiple-pass approach, each pass applying one cryptography algorithm with its own cryptography keys. The encrypted data can only be fully and correctly decrypted with the correct algorithms in the correct sequence (as determined by one or more security level parameters) and the correct cryptography keys. The system includes a multiple cryptography algorithm set section which is reconfigurable to perform multiple cryptography algorithms sequentially, and a cryptography controller which receives an input key set and a security level parameter. The cryptography controller reconfigures the multiple cryptography algorithm set section based on the security level parameter to perform multiple selected cryptography algorithms in a selected sequence. The cryptography controller also generates cryptography keys based on the input key set and provide the cryptography keys to the multiple cryptography algorithm set section.
    • 描述了可重构和可扩展的加密(加密/解密)系统架构及相关方法。 该系统利用多遍方法,每次通过使用一个加密算法与其自己的加密密钥。 加密数据只能以正确的算法以正确的顺序(由一个或多个安全级别参数确定)和正确的加密密钥完全正确地解密。 该系统包括可重新配置以依次执行多个加密算法的多密码算法集部分,以及接收输入密钥集和安全级别参数的密码控制器。 密码学控制器基于安全级别参数重新配置多密码算法集段,以选择的顺序执行多个选择的加密算法。 加密控制器还基于输入密钥集生成加密密钥,并将加密密钥提供给多密码算法集段。
    • 3. 发明授权
    • System and apparatus for integrated video/image encoding/decoding and encryption/decryption
    • 用于集成视频/图像编码/解码和加密/解密的系统和装置
    • US08660261B2
    • 2014-02-25
    • US12478182
    • 2009-06-04
    • Yu-Lin ChangWensheng Zhou
    • Yu-Lin ChangWensheng Zhou
    • H04L9/00
    • H04N7/1675H04N19/93H04N21/2347
    • An encryption-enabled entropy coder for a multimedia codec is disclosed. The entropy coder implements a randomized Huffman coding scheme without storing multiple sets of Huffman tables in a ROM. The entropy coder includes a ROM storing a single set of code tables, a table lookup section coupled to the ROM which converts symbols to original codewords and vice versa by performing table lookup, and a table randomizer section for converting original Huffman codewords to randomized Huffman codewords and vice versa using an isomorphic code generator algorithm. The table randomizer section performs the conversion based on a key hopping sequence generated by a pseudorandom bit generator using an encryption/decryption key.
    • 公开了一种用于多媒体编解码器的加密功能熵编码器。 熵编码器实现随机Huffman编码方案,而不在ROM中存储多组霍夫曼表。 熵编码器包括存储单个代码表集的ROM,耦合到ROM的表查找部分,其通过执行表查找将符号转换为原始码字,反之亦然;以及表随机化器部分,用于将原始霍夫曼码字转换为随机霍夫曼码字 反之亦然,使用同构码生成算法。 表格随机化器部分基于使用加密/解密密钥的伪随机比特发生器产生的密钥跳频序列进行转换。
    • 6. 发明授权
    • Auto depth field capturing system and method thereof
    • 自动深度场捕获系统及其方法
    • US08179448B2
    • 2012-05-15
    • US12230200
    • 2008-08-26
    • Liang-Gee ChenWan-Yu ChenYu-Lin ChangChao-Chung Cheng
    • Liang-Gee ChenWan-Yu ChenYu-Lin ChangChao-Chung Cheng
    • H04N5/228
    • G06T7/55G03B2217/005G06T2207/10012
    • The invention presents a system and method for obtaining object depth through digital signal processing. The auto depth-field capturing method for a camera includes the steps of a) taking plural images; b) estimating plural epipolar data of the plural images for obtaining a matrix describing motion and directional vectors; c) estimating a location data in response to the plural epipolar data and the matrix; d) rectifying the plural images corresponding to the plural epipolar data for obtaining plural rectified images; e) calculating the location data for obtaining disparity vectors of the rectified images; f) obtaining a depth map in response to the disparity vectors and the location data; and g) painting a 3D image in correspondence with the depth map. The depth estimation method of the present invention is fully automatic without change of the camera itself.
    • 本发明提出了一种通过数字信号处理获得物体深度的系统和方法。 相机的自动深度场捕获方法包括以下步骤:a)拍摄多个图像; b)估计所述多个图像中的多个对数数据,以获得描述运动和方向向量的矩阵; c)响应于所述多个对极数据和所述矩阵来估计位置数据; d)对与多个对数数据相对应的多个图像进行整流,以获得多个整流图像; e)计算用于获得整流图像的视差矢量的位置数据; f)响应于视差矢量和位置数据获得深度图; 并且g)与深度图相对应地绘制3D图像。 本发明的深度估计方法是全自动的,而不改变相机本身。