公开(公告)号：US20080022191A1

公开(公告)日：2008-01-24

申请号：US11574792

申请日：2005-09-07

申请人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

发明人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

IPC分类号： H03M13/11

CPC分类号： H03M13/116 ,  H03M13/1148 ,  H03M13/353

摘要： A method of adaptive error correction coding includes processing data during a connection between a transmitting entity and a receiving entity, where the data is processed in accordance with a predetermined coding scheme. More particularly, processing data can include encoding one or more sequences received by an error correction encoder of the transmitting entity, or decoding one or more block codes received by an error correction decoder of the receiving entity. During the connection, then, the method can include selecting or receiving a selection of feedback code information. Thus, during at least a portion of the connection, the data processing can be switched to processing data in accordance with a parity-check coding technique based upon the feedback code information.

摘要翻译： 一种自适应纠错编码的方法包括在发送实体和接收实体之间的连接期间处理数据，其中根据预定编码方案对数据进行处理。 更具体地，处理数据可以包括编码由发送实体的纠错编码器接收的一个或多个序列，或者对由接收实体的纠错解码器接收的一个或多个块代码进行解码。 在连接期间，该方法可以包括选择或接收反馈代码信息的选择。 因此，在连接的至少一部分期间，可以基于反馈代码信息，根据奇偶校验编码技术将数据处理切换到处理数据。

公开(公告)号：US20070198905A1

公开(公告)日：2007-08-23

申请号：US11346184

申请日：2006-02-03

申请人： Tejas Bhatt ,  Amitabh Dixit ,  Victor Stolpman

发明人： Tejas Bhatt ,  Amitabh Dixit ,  Victor Stolpman

IPC分类号： G06F11/00 ,  H03M13/00

CPC分类号： H03M13/116 ,  H03M13/118

摘要： A transmitter for a communications network, the transmitter comprising: receiving means for receiving data; accessing means for accessing a parity check code; generating means for generating encoded data including an error correction codeword using the data and the parity check code; and transmitting means for transmitting the encoded data and the error correction codeword, wherein the parity check code comprises a parity check matrix which, in expanded form, can be represented by the matrix H having the general structure ( A B T C D E ) ⁢ ` wherein A, B, T, C, D and E represent sub-matrices, ET−1B being equal to the null matrix, the generating means comprising summing circuitry arranged to receive matrix elements ET−1A and C to generate a sum, and matrix multiplication circuitry for receiving the sum, a matrix element D−1 and a matrix sT comprising the data, the matrix multiplication circuitry being operable to generate a parity part p1T of the error correction codeword according to the formula p1T=−D−1(−ET−1A+C)sT.

公开(公告)号：US07689892B2

公开(公告)日：2010-03-30

申请号：US11574792

申请日：2005-09-07

申请人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

发明人： Victor Stolpman ,  Tejas Bhatt ,  Nico van Waes ,  Jian Zhong Zhang ,  Amitabh Dixit

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/1148 ,  H03M13/353

摘要： A method of adaptive error correction coding includes processing data during a connection between a transmitting entity and a receiving entity, where the data is processed in accordance with a predetermined coding scheme. More particularly, processing data includes encoding one or more sequences received by an error correction encoder of the transmitting entity, or decoding one or more block codes received by an error correction decoder of the receiving entity. During the connection, then, the method includes selecting or receiving a selection of feedback code information. Thus, during at least a portion of the connection, the data processing is switched to processing data in accordance with a parity-check coding technique based upon the feedback code information.

摘要翻译： 一种自适应纠错编码的方法包括在发送实体和接收实体之间的连接期间处理数据，其中根据预定编码方案对数据进行处理。 更具体地，处理数据包括编码由发送实体的纠错编码器接收的一个或多个序列，或者解码由接收实体的纠错解码器接收的一个或多个块码。 在连接期间，该方法包括选择或接收反馈代码信息的选择。 因此，在连接的至少一部分期间，基于反馈代码信息，根据奇偶校验编码技术将数据处理切换到处理数据。

公开(公告)号：US09727232B2

公开(公告)日：2017-08-08

申请号：US13250095

申请日：2011-09-30

申请人： Amitabh Dixit

发明人： Amitabh Dixit

IPC分类号： G06F3/0488 ,  G06F3/01

CPC分类号： G06F3/04883 ,  G06F3/011 ,  G06F2203/011

摘要： Methods, apparatuses, and computer program products are herein provided for improving operation of a device based upon user interaction. A method may include receiving user input. The method may further include determining a user state value based at least in part on the received user input, wherein the user state value corresponds to a patience level of the user with the current rate of operation of the device. The method may further include causing modification in the operation of the device based at least in part on comparison of the user state value to a threshold user state value. Corresponding apparatuses and computer program products are also provided.

公开(公告)号：US20130082916A1

公开(公告)日：2013-04-04

申请号：US13250095

申请日：2011-09-30

申请人： Amitabh Dixit

发明人： Amitabh Dixit

IPC分类号： G09G5/00

CPC分类号： G06F3/04883 ,  G06F3/011 ,  G06F2203/011

摘要： Methods, apparatuses, and computer program products are herein provided for improving operation of a device based upon user interaction. A method may include receiving user input. The method may further include determining a user state value based at least in part on the received user input, wherein the user state value corresponds to a patience level of the user with the current rate of operation of the device. The method may further include causing modification in the operation of the device based at least in part on comparison of the user state value to a threshold user state value. Corresponding apparatuses and computer program products are also provided.

摘要翻译： 这里提供了方法，装置和计算机程序产品，用于基于用户交互来改进设备的操作。 方法可以包括接收用户输入。 该方法还可以包括至少部分地基于所接收的用户输入来确定用户状态值，其中用户状态值对应于具有设备的当前操作速率的用户的耐心水平。 该方法还可以包括至少部分地基于用户状态值与阈值用户状态值的比较来对设备的操作进行修改。 还提供了相应的设备和计算机程序产品。

公开(公告)号：US08077904B2

公开(公告)日：2011-12-13

申请号：US11479683

申请日：2006-06-30

申请人： Amitabh Dixit

发明人： Amitabh Dixit

IPC分类号： G06K9/00

CPC分类号： H04N1/32144 ,  G06T1/0071 ,  G06T2201/0083 ,  H04N1/32288 ,  H04N2201/3233

摘要： Apparatuses, computer program products, and methods for authenticating digital signals are provided in which copies of a watermark are extracted from a digital signal with at least some of the copies potentially having distorted values. The original values of the watermark may be reconstructed exclusively based on the extracted copies of the watermark. The method includes estimating one or more bit error rates without training or reference information. The bit error rates are modeled as being equivalent to transmitting the copies through binary symmetric channels. The estimated bit error rates and the distorted values are combined to reconstruct the original values of the watermark. The reconstructed watermark may be compared to an original watermark for authenticating the received digital signal. Also, the estimated bit error rates may be compared to a random sequence of bits for verifying the presence of the watermark without knowing the original values of the watermark.

摘要翻译： 提供了用于认证数字信号的装置，计算机程序产品和方法，其中从数字信号提取水印的副本，其中至少一些副本潜在地具有失真的值。 可以基于提取的水印副本专门重构水印的原始值。 该方法包括在没有训练或参考信息的情况下估计一个或多个误码率。 误码率被建模为等效于通过二进制对称信道发送副本。 估计的误码率和失真的值被组合以重建水印的原始值。 可以将重构的水印与原始水印进行比较以验证所接收的数字信号。 此外，估计的误码率可以与用于验证水印的存在而不知道水印的原始值的随机比特序列进行比较。

公开(公告)号：US20100005305A1

公开(公告)日：2010-01-07

申请号：US12166165

申请日：2008-07-01

申请人： Amitabh Dixit

发明人： Amitabh Dixit

IPC分类号： H04L9/06

CPC分类号： H04N1/32203 ,  G06F16/50 ,  G06F16/5838 ,  G06F16/907 ,  G06T1/0021 ,  G11B27/105 ,  G11B27/28 ,  H04N1/32208 ,  H04N1/32229 ,  H04N2201/3264 ,  H04N2201/3266 ,  H04N2201/3267 ,  H04N2201/327

摘要： Apparatuses, and methods for inserting user data into digital multimedia signals are provided in which user data is inserted into the digital multimedia signals in a substantially imperceptible fashion. In one embodiment of the invention, digital watermarking techniques are used to embed user data into the digital multimedia signal, such that user data is later helpful in indexing the digital multimedia signal. User data can be in any generic form such as text, audio or video signals. In another embodiment of the invention, user data is superimposed on the digital multimedia signal at a location which contains the least amount of information. In yet another embodiment of the invention, user data is inserted at a location chosen by the user. The color in which user data is superimposed can also be chosen by the user by using either a color palette or by pointing to an area in the digital image or video.

摘要翻译： 提供了将用户数据插入数字多媒体信号的装置和方法，其中以基本上不可察觉的方式将用户数据插入到数字多媒体信号中。 在本发明的一个实施例中，使用数字水印技术将用户数据嵌入到数字多媒体信号中，使得用户数据有助于索引数字多媒体信号。 用户数据可以是任何通用形式，例如文本，音频或视频信号。 在本发明的另一实施例中，用户数据在包含最少信息量的位置叠加在数字多媒体信号上。 在本发明的另一个实施例中，用户数据被插入在用户选择的位置。 用户数据叠加的颜色也可以由用户通过使用调色板或指向数字图像或视频中的区域来选择。

公开(公告)号：US20080002852A1

公开(公告)日：2008-01-03

申请号：US11479683

申请日：2006-06-30

申请人： Amitabh Dixit

发明人： Amitabh Dixit

IPC分类号： G06K9/00

CPC分类号： H04N1/32144 ,  G06T1/0071 ,  G06T2201/0083 ,  H04N1/32288 ,  H04N2201/3233

摘要： Apparatuses, computer program products, and methods for authenticating digital signals are provided in which copies of a watermark are extracted from a digital signal with at least some of the copies potentially having distorted values. The original values of the watermark may be reconstructed exclusively based on the extracted copies of the watermark. The method includes estimating one or more bit error rates without training or reference information. The bit error rates are modeled as being equivalent to transmitting the copies through binary symmetric channels. The estimated bit error rates and the distorted values are combined to reconstruct the original values of the watermark. The reconstructed watermark may be compared to an original watermark for authenticating the received digital signal. Also, the estimated bit error rates may be compared to a random sequence of bits for verifying the presence of the watermark without knowing the original values of the watermark.

摘要翻译： 提供了用于认证数字信号的装置，计算机程序产品和方法，其中从数字信号提取水印的副本，其中至少一些副本潜在地具有失真的值。 可以基于提取的水印副本专门重构水印的原始值。 该方法包括在没有训练或参考信息的情况下估计一个或多个误码率。 误码率被建模为等效于通过二进制对称信道发送副本。 估计的误码率和失真的值被组合以重建水印的原始值。 可以将重构的水印与原始水印进行比较以验证所接收的数字信号。 此外，估计的误码率可以与用于验证水印的存在而不知道水印的原始值的随机比特序列进行比较。