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1. 发明授权

US6016468A Generating the variable control parameters of a speech signal synthesis filter 失效
标题翻译：生成语音信号合成滤波器的变量控制参数
公开(公告)号：US6016468A
公开(公告)日：2000-01-18
申请号：US78245
申请日：1993-07-27
申请人： Daniel Kenneth Freeman , Wing-Tak Kenneth Wong , Andrew Gordon Davis
发明人： Daniel Kenneth Freeman , Wing-Tak Kenneth Wong , Andrew Gordon Davis
IPC分类号： G10L19/083 , G10L19/12 , G10L9/14
CPC分类号： G10L19/083 , G10L19/12
摘要： A codebook excited speech coder analyzes speech to produce coefficients of a synthesis filter, the parameters of a long-term prediction filter (LTP) and a codeword indication one of a set of excitations. The results are transmitted to a receiver where they can be used to resynthesize the speech. The LTP and excitation analysis involve generation of impulse response products by adding additional terms to products already formed and storing them in a store. Multiplication of these products by excitation terms is performed using a pointer table storing precalculated addresses of locations in the store. If some excitations are shifted versions of others, some addresses can be obtained by modifying other addresses. The LTP analysis may include selection between a simple delay prediction and a prediction including the sum of two differently delayed terms, to provide improved predictor delay resolution.
摘要翻译： PCT No.PCT / GB91 / 02291 Sec。 371日期：1993年7月27日 102（e）日期1993年7月27日PCT 1991年12月20日PCT PCT。出版物WO92 / 日期1992年7月9日代码簿激励语音编码器分析语音以产生合成滤波器的系数，长期预测滤波器（LTP）的参数和一组激励的码字指示。结果被传送到接收机，在那里它们可以用来再次合成语音。 LTP和激发分析包括通过向已经形成的产品添加附加项并将其存储在商店中来产生脉冲响应产物。这些产品通过激励项的乘法是使用存储预先计算的商店中位置地址的指针表来执行的。如果某些兴奋是别人的转换版本，可以通过修改其他地址获得一些地址。 LTP分析可以包括简单延迟预测和包括两个不同延迟项的和的预测之间的选择，以提供改进的预测器延迟分辨率。

2. 发明授权

US06957182B1 Audio coder utilizing repeated transmission of packet portion 有权
标题翻译：音频编码器利用分组部分的重复传输
公开(公告)号：US06957182B1
公开(公告)日：2005-10-18
申请号：US09763466
申请日：1999-09-14
申请人： Rory Stewart Turnbull , Andrew Gordon Davis
发明人： Rory Stewart Turnbull , Andrew Gordon Davis
IPC分类号： G10L19/005 , H04L1/08 , H04L12/56 , G10L19/02
CPC分类号： G10L19/005 , H04L1/08
摘要： A coder generates a first output providing first data from which a decoder can produce a reconstructed signal and a second output providing second, enhancement, data whereby a decoder receiving both the first and second data can produce a higher quality reconstructed signal. Packets of data are assembled for transmission, each packet containing primary data which includes the first data in respect of a temporal portion of the signal and the second data in respect of the same portion of the signal and secondary data which includes the first data in respect of a different temporal portion of the signal.
摘要翻译：编码器产生提供第一数据的第一输出，解码器从该第一数据产生重构信号，第二输出提供第二增强数据，由此接收第一和第二数据的解码器可以产生更高质量的重建信号。数据包组合用于传输，每个数据包包含主数据，其中包括关于信号的时间部分的第一数据和关于信号的相同部分的第二数据以及包括第一数据的次要数据的信号的不同时间部分。

3. 发明申请

US20130208942A1 DIGITAL VIDEO FINGERPRINTING 有权
标题翻译：数字视频指纹
公开(公告)号：US20130208942A1
公开(公告)日：2013-08-15
申请号：US13877267
申请日：2011-09-30
申请人： Andrew Gordon Davis
发明人： Andrew Gordon Davis
IPC分类号： G06T1/00
CPC分类号： G06T1/0021 , G06F17/30784 , G06F21/10 , G06F21/64 , G06F2221/0733 , G06K9/00744 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/18 , H04N19/48 , H04N19/61
摘要： A digitally encoded video fingerprinting system for generating and comparing/matching finger-prints from digitally encoded video which has been encoded according to an encoding method which involves the generation of residual macroblocks of pixels and the generation of quantized transform coefficients of the residual macroblocks, or of portions of the residual macroblocks, comprises a fingerprint database (5) and a video processing subsystem (10). The video processing subsystem (10) includes a fingerprint sequence selection module (14, 24) which is operable to select one or more sets of frames from input video content to be processed in order to generate a fingerprint; a fingerprint calculation module (14, 26) which is operable to generate a fingerprint based on a set of frames selected by the fingerprint sequence selection module; and a fingerprint comparator module (14, 28) which is operable to compare two fingerprints and to output a similarity score of the compared fingerprints. The method used by the fingerprint selection and fingerprint calculation modules includes selecting a group of frames of the encoded video content; processing the digitally encoded video content to obtain a set of quantized transform coefficients of residual macroblocks or portions of residual macroblocks associated with each of the selected frames; identifying a set of residual macroblocks per frame whose transform coefficients satisfy a threshold criterion; and generating a digital video fingerprint for the encoded video content in dependence upon the identified macroblocks or some property thereof within each of the selected frames.
摘要翻译：一种数字编码视频指纹系统，用于产生和比较/匹配来自数字编码视频的指纹，该编码视频已经根据涉及产生残余宏块的像素的编码方法和剩余宏块的量化变换系数的产生，或的剩余宏块的一部分包括指纹数据库（5）和视频处理子系统（10）。视频处理子系统（10）包括指纹序列选择模块（14,24），其可操作以从要处理的输入视频内容中选择一组或多组帧，以便生成指纹; 指纹计算模块（14,26），其可操作以基于由所述指纹序列选择模块选择的一组帧来生成指纹; 以及指纹比较器模块（14,28），其可操作以比较两个指纹并输出所述指纹的相似性得分。由指纹选择和指纹计算模块使用的方法包括选择编码视频内容的一组帧; 处理数字编码的视频内容以获得与所选择的每个帧相关联的剩余宏块或残余宏块的部分的量化变换系数集合; 识别其变换系数满足阈值标准的每帧的一组残余宏块; 以及根据所识别的宏块或每个所选择的帧中的某些属性，为编码的视频内容生成数字视频指纹。

4. 发明申请

US20100141835A1 VIDEO SIGNAL ANALYSIS 有权
标题翻译：视频信号分析
公开(公告)号：US20100141835A1
公开(公告)日：2010-06-10
申请号：US12598522
申请日：2008-04-11
申请人： Andrew Gordon Davis
发明人： Andrew Gordon Davis
IPC分类号： H04N7/64 , H04N7/04
CPC分类号： H04N7/012 , H04N7/0115
摘要： In order to detect interlace errors in a video signal, one receives successive digitally coded frames, each frame comprising data for a field of a first type and data for a field of a second type (i.e. a top field and bottom field or vice versa). One then generates for each field of the first type:—a first difference signal (D1 F1) representative of the difference between the field and the second-type field of the previous frame;—a second difference signal (D1 F2) representative of the difference between the field and the second-type field of the same frame; and—a third difference signal (D1 F3) representative of the difference between the field and the second-type field of the following frame. Then, in dependence of the values of said difference signals, a decision signal (wOFlag) is generated indicating an estimated temporal relationship of the field to the second-type field of the same frame. This can be compared with a signal (IDFO) indicating a purported temporal relationship, and an alarm signal (wEFlag) generated in the event of a mismatch.
摘要翻译：为了检测视频信号中的隔行错误，一个接收连续的数字编码帧，每个帧包括用于第一类型的场的数据和用于第二类型的场的数据（即顶场和底场，反之亦然）。然后，对于第一类型的每个场产生： - 表示前一帧的场和第二类型场之间的差的第一差分信号（D1 F1）; - 表示前一帧的场和第二类型场之间的差的第一差分信号（D1 F1）同一帧的场和第二类场之间的差异; 以及表示后续帧的场和第二类型场之间的差的第三差分信号（D1 F3）。然后，根据所述差分信号的值，产生指示场的估计时间关系与同一帧的第二类型场的时间关系的判定信号（wOFlag）。这可以与指示声称的时间关系的信号（IDFO）和在不匹配的情况下产生的报警信号（wEFlag）进行比较。

5. 发明授权

US09330426B2 Digital video fingerprinting 有权
标题翻译：数字视频指纹识别
公开(公告)号：US09330426B2
公开(公告)日：2016-05-03
申请号：US13877267
申请日：2011-09-30
申请人： Andrew Gordon Davis
发明人： Andrew Gordon Davis
IPC分类号： G06F21/10 , G06F21/64 , G06F17/30 , G06K9/00 , H04N19/176 , H04N19/14 , H04N19/18 , H04N19/48 , G06T1/00 , H04N19/172 , H04N19/61 , H04N19/177
CPC分类号： G06T1/0021 , G06F17/30784 , G06F21/10 , G06F21/64 , G06F2221/0733 , G06K9/00744 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/18 , H04N19/48 , H04N19/61
摘要： A digitally encoded video fingerprinting system for generating and comparing/matching finger-prints from digitally encoded video which has been encoded according to an encoding method which involves the generation of residual macroblocks of pixels and the generation of quantized transform coefficients of the residual macroblocks, or of portions of the residual macroblocks, comprises a fingerprint database (5) and a video processing subsystem (10). The video processing subsystem (10) includes a fingerprint sequence selection module (14, 24) which is operable to select one or more sets of frames from input video content to be processed in order to generate a fingerprint; a fingerprint calculation module (14, 26) which is operable to generate a fingerprint based on a set of frames selected by the fingerprint sequence selection module; and a fingerprint comparator module (14, 28) which is operable to compare two fingerprints and to output a similarity score of the compared fingerprints. The method used by the fingerprint selection and fingerprint calculation modules includes selecting a group of frames of the encoded video content; processing the digitally encoded video content to obtain a set of quantized transform coefficients of residual macroblocks or portions of residual macroblocks associated with each of the selected frames; identifying a set of residual macroblocks per frame whose transform coefficients satisfy a threshold criterion; and generating a digital video fingerprint for the encoded video content in dependence upon the identified macroblocks or some property thereof within each of the selected frames.
摘要翻译：一种数字编码视频指纹系统，用于产生和比较/匹配来自数字编码视频的指纹，该编码视频已经根据涉及产生残余宏块的像素的编码方法和剩余宏块的量化变换系数的产生，或的剩余宏块的一部分包括指纹数据库（5）和视频处理子系统（10）。视频处理子系统（10）包括指纹序列选择模块（14,24），其可操作以从要处理的输入视频内容中选择一组或多组帧，以便生成指纹; 指纹计算模块（14,26），其可操作以基于由所述指纹序列选择模块选择的一组帧来生成指纹; 以及指纹比较器模块（14,28），其可操作以比较两个指纹并输出所述指纹的相似性得分。由指纹选择和指纹计算模块使用的方法包括选择编码视频内容的一组帧; 处理数字编码的视频内容以获得与所选择的每个帧相关联的剩余宏块或残余宏块的部分的量化变换系数集合; 识别其变换系数满足阈值标准的每帧的一组残余宏块; 以及根据所识别的宏块或每个所选择的帧中的某些属性，为编码的视频内容生成数字视频指纹。

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