会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • DATA PROCESSING APPARATUS AND METHOD
    • 数据处理装置和方法
    • WO2009056801A1
    • 2009-05-07
    • PCT/GB2008/003606
    • 2008-10-24
    • SONY CORPORATIONSONY UNITED KINGDOM LIMITEDATUNGSIRI, Samuel, AsanbengTAYLOR, Matthew, Paul, AtholWILSON, John, Nicholas
    • ATUNGSIRI, Samuel, AsanbengTAYLOR, Matthew, Paul, AtholWILSON, John, Nicholas
    • H04L1/00H04L27/26H03M13/27
    • H04L5/0007G11C19/00H03M13/276H04L1/0071H04L5/0053H04L27/14H04L27/2602H04L27/2647
    • A data processing apparatus maps input symbols to be communicated onto a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals. The interleaver memory reads-out the data symbols on to the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on to the sub-carrier signals. The set of addresses are generated from an address generator which comprises a linear feedback shift register and a permutation circuit. A generator polynomial for the linear feedback shift register of R' i [7] = R' i- l [0] ⊕ R' i-l [1] ⊕ R' i-l [5] ⊕ R' i-l [6] is provided with a permutation order which has been established by simulation analysis to optimise communication performance via typical radio channels, of an OFDM modulated system such as a Digital Video Broadcasting (DVB) standard such as DVB- Terrestrial2 (DVB-T2).
    • 数据处理装置将要传送的输入符号映射到正交频分复用(OFDM)符号的预定数量的副载波信号。 数据处理器包括交织器存储器,其读入预定数量的数据符号以映射到OFDM子载波信号上。 交织器存储器将数据符号读出到OFDM子载波上以实现映射,读出的顺序与读入不同,顺序是从一组地址确定的,其效果是 数据符号被交织在子载波信号上。 地址集合由包括线性反馈移位寄存器和置换电路的地址发生器产生。 R'i [7] = R'i [0]的线性反馈移位寄存器的生成多项式? R'i-1 [1]? R'i-l [5]? R'i-1 [6]具有通过仿真分析建立的置换顺序,以通过典型的无线电信道优化诸如DVB-Terrestrial2之类的数字视频广播(DVB)标准的OFDM调制系统的通信性能 (DVB-T2)。
    • 5. 发明申请
    • ENCODING AND DETECTING APPARATUS
    • 编码和检测装置
    • WO2007141471A1
    • 2007-12-13
    • PCT/GB2007/001657
    • 2007-05-04
    • SONY UNITED KINGDOM LIMITEDRUSSELL, Mark, JulianGILLARD, Clive, HenryHOOPER, Daniel, LukeMCLEAN, IanTAPSON, Daniel, WarrenKEATING, Stephen, Mark
    • RUSSELL, Mark, JulianGILLARD, Clive, HenryHOOPER, Daniel, LukeMCLEAN, IanTAPSON, Daniel, WarrenKEATING, Stephen, Mark
    • G06T1/00
    • G06T1/0085G06T1/0071G06T2201/0081
    • An encoding data processing apparatus generates a marked copy of a video material item by embedding a payload data word into the video material item. The video material item includes a plurality of video frames. The encoding data processing apparatus comprises a code word generator, a shuffle processor and an embedding data processor. The code word generator is operable to generate a water mark code word from the payload data word and to read data representing the water mark code word into a shuffle data store. The shuffle processor is operable to generate pseudo randomly at least one address within an address space of the shuffle data store for each of the video frames and to read data representing part or parts of the water mark code word out from the data store at locations identified by the pseudo randomly generated address. The data embedding processor is operable to receive the video material item and to embed the data representing the part or parts of the water mark code word read out from the shuffle data store for each frame into a corresponding frame of the video material item. As such, by randomly embedding different parts of the code word into each frame of the video material item, a likelihood of an attacker being able to identify the code word within the video material item is substantially reduced. Security of the payload data word represented by the water mark code word is therefore improved.
    • 编码数据处理装置通过将有效载荷数据字嵌入到视频材料项目中来生成视频材料项目的标记副本。 视频材料项目包括多个视频帧。 编码数据处理装置包括码字生成器,混洗处理器和嵌入数据处理器。 代码字生成器可操作以从有效载荷数据字生成水印码字,并将表示水印码字的数据读入洗牌数据存储。 洗牌处理器可操作以在每个视频帧的随机播放数据存储器的地址空间内产生伪随机的至少一个地址,并且从标识的位置读取表示水印码字的部分或部分的数据。 由伪随机生成的地址。 数据嵌入处理器可操作以接收视频材料项目并将表示从每个帧的混洗数据存储器读出的水印码字的部分或部分的数据嵌入到视频材料项目的相应帧中。 这样,通过将代码字的不同部分随机地嵌入到视频材料项目的每个帧中,攻击者能够识别视频材料项目内的代码字的可能性大大降低。 因此,提高了由水印码字表示的有效载荷数据字的安全性。
    • 7. 发明申请
    • VIDEO PROCESSING
    • 视频处理
    • WO2007051979A1
    • 2007-05-10
    • PCT/GB2006/004007
    • 2006-10-27
    • SONY UNITED KINGDOM LIMITEDSHARMAN, Karl, James
    • SHARMAN, Karl, James
    • H04N7/01H04N5/44
    • H04N7/012H04N5/142H04N5/145H04N5/205
    • Video processing apparatus in which pixels of a progressive scan output image are generated either by a first pixel generation technique involving intra-field interpolation from an input field or by a second pixel generation technique involving selection of a corresponding pixel from an input field of the appropriate field polarity comprises a motion detector for detecting image motion at an output pixel position; a high frequency detector for detecting high vertical frequency components in an image region around the output pixel position; and means for selecting between the first pixel generation technique and the second pixel generation technique in dependence on a comparison of the detected image motion and the detected high vertical frequency components at the output pixel position.
    • 视频处理装置,其中逐行扫描输出图像的像素是通过涉及从输入场进行场内插值的第一像素产生技术产生的,或者通过第二像素生成技术产生,该技术涉及从适当的输入场中选择相应的像素 场极性包括用于检测输出像素位置处的图像运动的运动检测器; 用于检测输出像素位置周围的图像区域中的高垂直频率分量的高频检测器; 以及用于根据检测到的图像运动和检测到的在输出像素位置处的高垂直频率分量的比较,在第一像素生成技术和第二像素生成技术之间进行选择的装置。
    • 8. 发明申请
    • BLOCK-BASED WATERMARKING
    • 基于块的水印
    • WO2006061601A1
    • 2006-06-15
    • PCT/GB2005/004682
    • 2005-12-07
    • SONY UNITED KINGDOM LIMITEDTAPSON, Daniel, WarrenHOOPER, Daniel, Luke
    • TAPSON, Daniel, WarrenHOOPER, Daniel, Luke
    • G06T1/00
    • H04N21/23892G06T1/005G06T2201/0051G06T2201/0061G06T2201/0065G06T2201/0083
    • A water marked image frame for conveying a payload data word is generated by combining at least one image frame with a two-dimensional water mark pattern. Comprising a plurality of regions, each including a two dimensional water mark block selected from a predetermined set of possible water mark blocks to represent the value of the associated payload data symbol. The payload data is detected by correlating each region of the water marked image frame with each block from of the set of water marked blocks, to form for each region a set of probability surfaces, each of which is combined with a distortion probability value for each region and for each of the water mark blocks which may be present in the region thus forming for each region, for each of the possible values of the payload symbol a probability value that that region includes that symbol value and therefrom generating an estimate of the payload data.
    • 通过将至少一个图像帧与二维水印图案组合来生成用于传送有效载荷数据字的水印图像帧。 包括多个区域,每个区域包括从预定的一组可能的水印块中选择的二维水印块,以表示相关联的有效载荷数据符号的值。 通过将水印图像帧的每个区域与该组标记水印块的每个块相关联来检测有效载荷数据,以便为每个区域形成一组概率表面,每个区域与每个区域的失真概率值 对于可能存在于区域中的每个水印块的每个水印块,对于每个区域,对于有效载荷符号的每个可能的值,该区域包括该符号值并从而生成有效载荷的估计的概率值 数据。
    • 10. 发明申请
    • IMAGE PROCESSING APPARATUS AND METHOD
    • 图像处理装置和方法
    • WO2003071782A1
    • 2003-08-28
    • PCT/GB2003/000558
    • 2003-02-07
    • SONY UNITED KINGDOM LIMITEDCALDER, Keith, RobertCHAIBELAINE, NordineLEVINE, Stuart, Jonathan
    • CALDER, Keith, RobertCHAIBELAINE, NordineLEVINE, Stuart, Jonathan
    • H04N1/64
    • H04N1/646H04N1/6072
    • A compression and de-compression arrangement is provided for a display device having a display memory and a display. The arrangement includes a color processor which reduces the color samples by processing a pair of pixels to produce first and second luminance values and forming first and second output chrominance values from the pair of pixels. The first and second output chrominance values are formed by calculating for each pixel the corresponding U and V chrominance values and forming the first and second chrominance values (U, V) from the average of the values for each pixel. Forming the compressed representation of the colour image provides an advantage when recovering the original image, particularly for example where the image contains detail and/or text. The image processing apparatus of the system receives the group of colour component signal samples from the display memory and generates first and second output pixels, each comprising three colour component values (R, G, B), from each group. The image processing apparatus includes a detail detection processor, which detects whether either of the pixels represented by each group of signal samples represents white or black and the other does not. This may be representative of one of the pixels being part of a text character or detail. Accordingly, in order to improve the likelihood of preserving the text and detail in the reproduced image, the de-compressing processor is arranged to assign the chrominance values (U1, VI) of one of the pixels to zero. The other chrominance value (U2, V2) of the other pixel is assigned the value of twice the value of the first and second input chrominance values respectively.
    • 为具有显示存储器和显示器的显示装置提供压缩和解压缩装置。 该装置包括一个彩色处理器,通过处理一对像素来产生第一和第二亮度值并从该对像素形成第一和第二输出色度值来减少颜色样本。 通过针对每个像素计算相应的U和V色度值并根据每个像素的值的平均值形成第一和第二色度值U,V来形成第一和第二输出色度值。 形成彩色图像的压缩表示在恢复原始图像时具有优势,特别是例如图像包含细节和/或文本的情况。 该系统的图像处理装置从显示存储器接收一组颜色分量信号样本,并且生成每个包括来自每个组的三个颜色分量值R,G,B的第一和第二输出像素。 图像处理装置包括细节检测处理器,其检测由每组信号样本表示的像素中的任一个是否表示白色或黑色,另一个不表示。 这可以代表作为文本字符或细节的一部分的像素之一。 因此,为了提高保存再现图像中的文本和细节的可能性,解压缩处理器被布置为将一个像素的色度值U1,VI分配给零。 另一像素的另一个色度值U2,V2分别被分配为第一和第二输入色度值的两倍的值。