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11. 发明授权

US09788033B1 Secure differential insertion of secondary content 有权
公开(公告)号：US09788033B1
公开(公告)日：2017-10-10
申请号：US15196068
申请日：2016-06-29
申请人： Cisco Technology, Inc.
发明人： Harel Cain , Michal Devir , Yaron Sella
IPC分类号： H04N7/16 , H04N21/2543 , H04N21/845 , H04N21/426 , H04N21/254 , H04N21/4627 , H04N21/81
CPC分类号： H04N21/2543 , G06Q30/0208 , G06Q30/0241 , H04N7/16 , H04N21/2541 , H04N21/26606 , H04N21/4181 , H04N21/42623 , H04N21/4623 , H04N21/4627 , H04N21/4784 , H04N21/812 , H04N21/845
摘要： In one embodiment, a consumer device is assigned, at a broadcast headend to one of at least two groups of consumer devices, the two groups including a first group of consumer devices which is required to play content of a second type in order to view content of a first type and a second group of consumer devices which is not required to play content of the second type in order to view content of the first type. A video broadcast stream is sent from the broadcast headend to the consumer device, the video broadcast stream comprising content of the first type sent associated with a first packet ID (PID) and content of the second type sent associated with a second PID, wherein the first PID and the second PID are processed at the consumer device at the same time. An entitlement management message (EMM) is sent from the broadcast headend to the consumer device according to its group of consumer devices, the EMM being of one of a first type of EMM for devices of the first device type and a second type of EMM for devices of the second device type. An entitlement control message (ECM) stream is sent from the broadcast headend to the consumer device, the ECM stream including comprising three types of ECMs: ECM_P_i_start which enables the consumer device to produce a control word which decrypts a first portion of the content of the first type; ECM_A_(i−1) which enables the consumer device to produce a control word which decrypts content of the second type; and ECM_P_i_rest which enables the consumer device to produce a control word which decrypts a second portion of the content of the first type. Related hardware, systems and methods are also described.

12. 发明授权

US09208534B2 System and method for embedding data 有权
标题翻译：用于嵌入数据的系统和方法
公开(公告)号：US09208534B2
公开(公告)日：2015-12-08
申请号：US14271751
申请日：2014-05-07
申请人： Cisco Technology Inc.
发明人： Harel Cain , Michal Devir
IPC分类号： G06K9/00 , G06T1/00 , H04N19/467
CPC分类号： G06T1/0092 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , H04N1/32144 , H04N1/32208 , H04N1/32229 , H04N1/32309 , H04N19/467 , H04N2005/91335
摘要： In one embodiment, a watermark is embedded in a sequence of video frames, for each one of the video frames, a set of N rectangular patches, two palettes of pixel values in a selected color space, such that the two palettes are denoted as P0 and P1, and P0≠P1, and in each one of the N patches a processor which chooses one of P0 and P1 according to a value of a payload bit to be encoded, a calculator which calculates one of a variance of pixel values in the frame, and edginess for the pixel values in the frame, thereby determining a calculated value, and a processor which determines if the calculated value is beneath a given threshold value, if the calculated value is beneath the given threshold value the processor is operative to calculate a function of the pixel values, the closest value to a result of the calculation of the function in the chosen palette is chosen, and a replacer which replaces the pixel values within the patch with the chosen closest value. Related systems, apparatus and methods are also described.
摘要翻译：在一个实施例中，将水印嵌入在视频帧序列中，对于每个视频帧，一组N个矩形块，所选色彩空间中的两个像素值调色板，使得两个调色板被表示为P0 P1和P0≠P1，并且在N个补丁中的每一个中，根据要编码的有效载荷比特的值来选择P0和P1之一的处理器，计算器，其计算所述N个补丁中的像素值的方差之一帧和边缘，用于确定计算的值，以及处理器，其确定计算值是否在给定阈值之下，如果计算的值低于给定阈值，则处理器可操作地计算选择像素值的函数，与所选择的调色板中的函数的计算结果的最接近的值，以及替换器，其用所选择的最接近的值替换补丁内的像素值。还描述了相关系统，装置和方法。

13. 发明授权

US09208352B2 LFSR watermark system 有权
标题翻译： LFSR水印系统
公开(公告)号：US09208352B2
公开(公告)日：2015-12-08
申请号：US14176400
申请日：2014-02-10
申请人： Cisco Technology Inc.
发明人： Yaron Sella , Harel Cain , Michal Devir
IPC分类号： G06F21/62 , G06F21/64
CPC分类号： G06F21/64 , G06F21/10 , G06F21/6209 , G06T1/005 , G06T2201/0063 , G09C5/00 , H04L9/3226 , H04L9/3236
摘要： In one embodiment, a system including a processor is operative to receive a content item including a watermark encoding a series of data values of an output stream of a linear feedback shift register initialized with a seed including an information element and an assurance value, the shift register having a plurality of states each including a first and second value, identify at least part of the watermark in the content item, extract at least some of the data values from the at least part of the identified watermark, process at least some of the extracted data values yielding the initial state of shift register, and authenticate the first value of the initial state using the second value of the initial state in order to confirm that the first value is indeed the information element included in the seed processed by the shift register.
摘要翻译：在一个实施例中，包括处理器的系统可操作以接收内容项目，该内容项目包括编码由包括信息元素和保证值的种子初始化的线性反馈移位寄存器的输出流的一系列数据值的水印，具有多个状态的寄存器，每个状态包括第一和第二值，识别内容项中的水印的至少一部分，从所识别的水印的至少一部分中提取至少一些数据值，处理至少一些提取的数据值产生移位寄存器的初始状态，并且使用初始状态的第二值来认证初始状态的第一值，以便确认第一值确实是包括在由移位寄存器处理的种子中的信息元素。

14. 发明申请

US20150324948A1 System and Method for Embedding Data 有权
标题翻译：嵌入数据的系统和方法
公开(公告)号：US20150324948A1
公开(公告)日：2015-11-12
申请号：US14271751
申请日：2014-05-07
申请人： Cisco Technology Inc.
发明人： Harel Cain , Michal Devir
IPC分类号： G06T1/00 , H04N19/467
CPC分类号： G06T1/0092 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , H04N1/32144 , H04N1/32208 , H04N1/32229 , H04N1/32309 , H04N19/467 , H04N2005/91335
摘要： In one embodiment, a watermark is embedded in a sequence of video frames, for each one of the video frames, a set of N rectangular patches, two palettes of pixel values in a selected color space, such that the two palettes are denoted as P0 and P1, and P0≠P1, and in each one of the N patches a processor which chooses one of P0 and P1 according to a value of a payload bit to be encoded, a calculator which calculates one of a variance of pixel values in the frame, and edginess for the pixel values in the frame, thereby determining a calculated value, and a processor which determines if the calculated value is beneath a given threshold value, if the calculated value is beneath the given threshold value the processor is operative to calculate a function of the pixel values, the closest value to a result of the calculation of the function in the chosen palette is chosen, and a replacer which replaces the pixel values within the patch with the chosen closest value. Related systems, apparatus and methods are also described.
摘要翻译：在一个实施例中，将水印嵌入在视频帧序列中，对于每个视频帧，一组N个矩形块，所选色彩空间中的两个像素值调色板，使得两个调色板被表示为P0 P1和P0≠P1，并且在N个补丁中的每一个中，根据要编码的有效载荷比特的值来选择P0和P1之一的处理器，计算器，其计算所述N个补丁中的像素值的方差之一帧和边缘，用于确定计算的值，以及处理器，其确定计算值是否在给定阈值之下，如果计算的值低于给定阈值，则处理器可操作地计算选择像素值的函数，与所选择的调色板中的函数的计算结果的最接近的值，以及替换器，其用所选择的最接近的值替换补丁内的像素值。还描述了相关系统，装置和方法。

15. 发明申请

US20150063698A1 Assisted OCR 有权
公开(公告)号：US20150063698A1
公开(公告)日：2015-03-05
申请号：US14012143
申请日：2013-08-28
申请人： Cisco Technology Inc.
发明人： Guy Adini , Harel Cain , Oded Rimon
IPC分类号： G06K9/18 , G06K9/34
CPC分类号： G06K9/18 , G06K9/344
摘要： A method including determining a position of each glyph in an image of a text document, identifying word boundaries in the document thereby implying the existence of a first plurality of words, preparing a first array of word lengths based on the first plurality of words, preparing a second array of word lengths based on a second plurality of words of a text file including a certain text, comparing at least part of the first array to at least part of the second array to find a best alignment between the first and second array, deriving a layout of at least part of the certain text as arranged in the image of the text document at least based on the best alignment and the position of at least some of the glyphs in the image. Related apparatus and methods are also described.

16. 发明授权

US10397596B2 Self-similar reference masks for persistency in a video stream 有权
公开(公告)号：US10397596B2
公开(公告)日：2019-08-27
申请号：US15673438
申请日：2017-08-10
申请人： Cisco Technology, Inc.
发明人： Harel Cain , Michal Devir , Yaron Sella
IPC分类号： G06T1/00 , H04N19/132 , H04N19/139 , H04N19/14 , H04N19/174 , H04N19/467 , H04N19/593 , H04N19/52 , H04N19/44
摘要： In one embodiment, a method including dividing a reference mask into a plurality of reference mask divisions, determining a plurality of motion vectors respectively associated with a plurality of slice divisions, wherein the plurality of reference mask divisions respectively correspond to the plurality of slice divisions, modifying a blurring kernel in accordance with the plurality of motion vectors, yielding a plurality of modified blurring kernels that are respectively associated with the plurality of slice divisions, and performing at least one action to yield an altered reference mask, including for the plurality of reference mask divisions and the plurality of modified blurring kernels: convolving a reference mask division with a weighted function of at least a modified blurring kernel associated with a slice division, of the plurality of slice divisions, to which the reference mask division corresponds.

17. 发明授权

US10123031B2 MPEG-2 video watermarking technique 有权
公开(公告)号：US10123031B2
公开(公告)日：2018-11-06
申请号：US14790028
申请日：2015-07-02
申请人： Cisco Technology, Inc.
发明人： Harel Cain , Yaron Sella , Michal Devir
IPC分类号： H04N19/467 , H04N19/593 , H04N19/177 , H04N19/184 , H04N19/61 , H04N19/59 , H04N19/186 , H04N19/174 , H04N19/18 , H04N19/625 , H04N19/176 , H04N21/8358
摘要： In one embodiment, a method, system and apparatus for watermarking MPEG-2 compressed video is described, the method, system and apparatus including detecting a pair of neighboring blocks in a MPEG-2 encoded I-frame, determining if the pair of neighboring blocks have dct_dc_differential fields with different values that are within a given threshold value of each other, and embedding a watermark payload bit in the neighboring blocks as a positive result of the determining, the embedding including ordering dct_dc_differential fields of the neighboring blocks such that ordering the dct_dc_differential fields in a first manner encodes a one bit and ordering the dct_dc_differential fields in a second manner encodes a zero bit. Related embodiments of methods, systems, and apparatuses are also described.

18. 发明授权

US09767689B1 Methods and systems for increasing vehicular safety 有权
公开(公告)号：US09767689B1
公开(公告)日：2017-09-19
申请号：US15072378
申请日：2016-03-17
申请人： Cisco Technology, Inc.
发明人： Harel Cain , Michal Devir , Yaron Sella , Alexander Kreines
IPC分类号： G08G1/16 , G08G1/0967
CPC分类号： G08G1/096791 , B60W40/09 , G08G1/0112 , G08G1/0133 , G08G1/0141 , G08G1/017 , G08G1/096716 , G08G1/096758
摘要： A method, system and apparatus are described, the method, system, and apparatus, in one embodiment including assigning at a processor an initial driving score S(V) to a vehicle which is being driven, receiving a report at a communication system controlled by the processor, the report including a report of a reckless driving incident in a vicinity of a receiver disposed in the vehicle, incrementing S(V) by the processor upon receipt of the report of the reckless driving incident, decreasing S(V) by the processor for every unit of driving the vehicle is driven, broadcasting the value of S(V) to other vehicles by the communication system controlled by the processor. Related methods, systems and apparatuses are also described.

19. 发明授权

US09735956B2 Key ladder apparatus and method 有权
公开(公告)号：US09735956B2
公开(公告)日：2017-08-15
申请号：US14809300
申请日：2015-07-27
申请人： Cisco Technology, Inc.
发明人： Yaron Sella , Michal Devir , Harel Cain , Perry Smith
IPC分类号： H04L9/00 , H04L9/08 , G09C1/00 , G06F21/72
CPC分类号： H04L9/0816 , G06F21/602 , G06F21/72 , G09C1/00 , H04L9/002 , H04L9/0822 , H04L9/14 , H04L2209/12 , H04L2209/38 , H04L2209/60
摘要： In one embodiment a method, apparatus and system for is described for receiving a first input including a first decryption key and a second input including an encrypted second decryption key at a cryptographic decryption apparatus, the encrypted second decryption key to be decrypted by the cryptographic apparatus according to the first decryption key, storing a value of a key ladder length in a first register by a cryptographic processor, and using the stored value as a loop index by the cryptographic processor for a number of iterations of the cryptographic decryption apparatus executed as a loop, wherein at one stage in the loop execution of the cryptographic decryption apparatus, the second input includes the key ladder length, wherein the loop operation of the cryptographic decryption apparatus operates for a number of iterations equal to an initial value of the loop index. Related methods, apparatuses and systems are also described.

20. 发明授权

US09544424B1 Trust enabled communication system 有权
标题翻译：信任启用通信系统
公开(公告)号：US09544424B1
公开(公告)日：2017-01-10
申请号：US14979712
申请日：2015-12-28
申请人： Cisco Technology, Inc.
发明人： Harel Cain , Yaron Sella , Michal Devir , David Wende
IPC分类号： H04M3/42 , H04L9/32
CPC分类号： H04L9/3268 , H04L9/3231 , H04L9/3247 , H04M3/38 , H04M2201/18 , H04M2203/6045 , H04M2203/6072
摘要： In one embodiment, a system to provide trust during an audio call between a first and second party includes a communication interface to receive a voice certificate including a voice pattern, a first certificate ID and a first digital signature, an attribute certificate including an attribute, a second certificate ID and a second digital signature, and processing hardware to compare a voice sample of the second party to the voice pattern, verify the voice certificate, verify the attribute certificate, verify at least one attribute signing organization certificate, compare the first certificate ID to the second certificate ID, and provide an indication that the second party in the audio call has the attribute based on a positive result to the above processing.
摘要翻译：在一个实施例中，在第一和第二方之间的音频呼叫期间提供信任的系统包括用于接收包括语音模式，第一证书ID和第一数字签名的语音证书的通信接口，包括属性的属性证书，第二证书ID和第二数字签名，以及处理硬件以将第二方的语音样本与语音模式进行比较，验证语音证书，验证属性证书，验证至少一个属性签名组织证书，比较第一证书 ID到第二证书ID，并且提供指示音频呼叫中的第二方基于对上述处理的肯定结果具有属性。

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