公开(公告)号：US07805739B2

公开(公告)日：2010-09-28

申请号：US12606889

申请日：2009-10-27

申请人： John William Buonasera ,  Christen Voss Nielsen ,  Venugopal Srinivasan

发明人： John William Buonasera ,  Christen Voss Nielsen ,  Venugopal Srinivasan

IPC分类号： H04N60/33

CPC分类号： G06Q30/02

摘要： Methods and apparatus for indirect illumination in electronic media rating systems are disclosed. A disclosed example method includes reflecting infrared light off of a room ceiling to indirectly illuminate the audience member, receiving reflections of the indirect illumination off of the audience member, blocking visible light prior to receiving the reflections of the indirect illumination off of the audience member, and processing the received reflections to detect the audience member.

摘要翻译： 公开了电子介质评级系统中间接照明的方法和装置。 公开的示例性方法包括：将室外天花板上的红外光反射以间接照射观众，接收来自观众的间接照明的反射，并在接收到观众的间接照明的反射之前阻挡可见光， 并处理收到的反射以检测观众。

公开(公告)号：US07742737B2

公开(公告)日：2010-06-22

申请号：US10492471

申请日：2002-10-09

申请人： John C. Peiffer ,  Michael A. Hicks ,  David H. Wright ,  Paul M. Mears ,  Venugopal Srinivasan ,  Daozheng Lu ,  Paul C. Kempter

发明人： John C. Peiffer ,  Michael A. Hicks ,  David H. Wright ,  Paul M. Mears ,  Venugopal Srinivasan ,  Daozheng Lu ,  Paul C. Kempter

IPC分类号： H04H9/00

CPC分类号： H04H60/59 ,  H04H60/37 ,  H04H60/58 ,  H04H2201/90 ,  H04N7/17318 ,  H04N21/235 ,  H04N21/4331 ,  H04N21/4394 ,  H04N21/44213 ,  H04N21/812 ,  H04N21/8352

摘要： Method and apparatus for identifying broadcast digital audio signals include structure and/or function whereby the digital audio signal is provided to processing structure which is configured to (i) identify a program-identifying code in the received digital audio signal, (ii) identify a program-identifying code in a decompressed received digital audio signal, (iii) identify a feature signature in the received digital audio signal, and (iv) identify a feature signature in the decompressed received digital audio signal. Preferably, such processing structure is disposed in a dwelling or a monitoring site in an audience measurement system, such as the Nielsen TV ratings system.

摘要翻译： 用于识别广播数字音频信号的方法和装置包括其中数字音频信号被提供给处理结构的结构和/或功能，处理结构被配置为（i）识别所接收的数字音频信号中的节目识别码，（ii） 解码接收的数字音频信号中的节目识别码，（iii）识别所接收的数字音频信号中的特征签名，以及（iv）识别解压缩的接收的数字音频信号中的特征签名。 优选地，这种处理结构被布置在诸如尼尔森电视评级系统的观众测量系统中的住宅或监视站点中。

公开(公告)号：US20100046795A1

公开(公告)日：2010-02-25

申请号：US12613334

申请日：2009-11-05

申请人： Venugopal Srinivasan

发明人： Venugopal Srinivasan

IPC分类号： G06K9/00

CPC分类号： G06T1/0021 ,  G10L19/018 ,  G10L19/0212 ,  G10L25/27

摘要： Methods and apparatus for embedding a watermark are disclosed. An example method for embedding a watermark disclosed herein comprises identifying a transform coefficient associated with a compressed digital data stream, obtaining a mantissa code, and modifying the transform coefficient based on the mantissa code to embed the watermark.

摘要翻译： 公开了嵌入水印的方法和装置。 用于嵌入本文公开的水印的示例性方法包括识别与压缩数字数据流相关联的变换系数，获得尾数代码，以及基于尾数代码修改变换系数以嵌入水印。

公开(公告)号：US20090074185A1

公开(公告)日：2009-03-19

申请号：US12193703

申请日：2008-08-18

申请人： Venugopal Srinivasan ,  Atul Puri

发明人： Venugopal Srinivasan ,  Atul Puri

IPC分类号： H04L9/00

CPC分类号： G10L19/018 ,  G06F21/10 ,  G06T1/0021 ,  H04L9/3247 ,  H04L63/0457

摘要： A method, computer program product, and computing device for modifying a first channel portion of a digital media data file to include at least a first primary watermark. A second channel portion of the digital media data file is modified to include at least a first secondary watermark, wherein the first secondary watermark is the complement of the first primary watermark.

摘要翻译： 一种用于修改数字媒体数据文件的第一信道部分以包括至少第一主要水印的方法，计算机程序产品和计算装置。 数字媒体数据文件的第二通道部分被修改为包括至少第一次级水印，其中第一次级水印是第一主要水印的补码。

公开(公告)号：US20090070587A1

公开(公告)日：2009-03-12

申请号：US12193709

申请日：2008-08-18

申请人： Venugopal Srinivasan ,  Atul Puri

发明人： Venugopal Srinivasan ,  Atul Puri

IPC分类号： H04L9/00

CPC分类号： G10L19/018 ,  G06F21/10 ,  G06T1/0021 ,  H04L9/3247 ,  H04L63/0457

摘要： A method, computer program product, and computing device for obtaining an uncompressed digital media data file. One or more default watermarks is inserted into the uncompressed digital media data file to form a watermarked uncompressed digital media data file. The watermarked uncompressed digital media data file is compressed to form a first watermarked compressed digital media data file. The first watermarked compressed media data file is stored on a storage device. The first watermarked compressed media data file is retrieved from the storage device. The first watermarked compressed digital media data file is modified to associate the first watermarked compressed digital media data file with a transaction identifier to form a second watermarked compressed digital media data file.

摘要翻译： 一种用于获得未压缩的数字媒体数据文件的方法，计算机程序产品和计算设备。 将一个或多个默认水印插入到未压缩的数字媒体数据文件中以形成水印的未压缩的数字媒体数据文件。 水印的未压缩的数字媒体数据文件被压缩以形成第一水印的压缩的数字媒体数据文件。 第一个加水印的压缩媒体数据文件被存储在存储设备上。 从存储设备检索第一个加水印的压缩媒体数据文件。 修改第一个加水印的压缩数字媒体数据文件，以将第一个加水印的压缩数字媒体数据文件与事务标识符相关联，以形成第二个加水印的压缩数字媒体数据文件。

公开(公告)号：US07466742B1

公开(公告)日：2008-12-16

申请号：US09553776

申请日：2000-04-21

申请人： Venugopal Srinivasan

发明人： Venugopal Srinivasan

IPC分类号： H04B1/00

CPC分类号： G10L19/018 ,  G10L19/035

摘要： An encoder calculates an entropy of at least a portion of a signal and encodes the signal with the calculated entropy. A decoder decodes the signal in order to recover the encoded entropy. The decoder may also determine an entropy of the signal and may compare the entropy that it determines to the decoded entropy. The decoder detects compression/decompression based upon results from the comparison, and/or the decoder prevents use of a device based upon results from the comparison.

摘要翻译： 编码器计算信号的至少一部分的熵，并对所计算的熵的信号进行编码。 解码器对信号进行解码，以便恢复编码的熵。 解码器还可以确定信号的熵，并且可以将其确定的熵与解码的熵进行比较。 解码器基于比较的结果来检测压缩/解压缩，和/或解码器基于比较结果防止使用设备。

公开(公告)号：US07006555B1

公开(公告)日：2006-02-28

申请号：US09428425

申请日：1999-10-27

申请人： Venugopal Srinivasan

发明人： Venugopal Srinivasan

IPC分类号： H04B1/713 ,  H04L9/00 ,  H04H9/00 ,  H04N7/16

CPC分类号： H04H20/31 ,  H04H20/14 ,  H04H60/37

摘要： Blocks of audio are encoded based upon corresponding first and second frequencies. The first and second frequencies are hopped from block to block. An audio quality measure (AQM) is computed for each block of audio such that, if x out of y blocks of audio have an AQM greater than a first predetermined threshold, encoding is suspended. For example, x may be nine and y may be 16. Also, if a ratio of the energy in a front part of a block of audio to the energy in a rear part of the block of audio is greater than a second predetermined threshold, that block of audio is not encoded even though x out of y blocks of audio have an AQM greater than the first predetermined threshold. Multiple distributors of the audio may encode the audio with their corresponding identities using the above processes.

摘要翻译： 基于对应的第一和第二频率来编码音频块。 第一和第二频率从块到块跳跃。 为每个音频块计算音频质量测量（AQM），使得如果y个音频块中的x个具有大于第一预定阈值的AQM，则暂停编码。 例如，x可以是9，y可以是16.此外，如果音频块的前部的能量与音频块的后部中的能量的比率大于第二预定阈值， 即使x的音频块中的x的AQM大于第一预定阈值，该音频块也不被编码。 音频的多个分配器可以使用上述过程对具有其相应身份的音频进行编码。

公开(公告)号：US06968564B1

公开(公告)日：2005-11-22

申请号：US09543480

申请日：2000-04-06

申请人： Venugopal Srinivasan

发明人： Venugopal Srinivasan

IPC分类号： G10L19/02 ,  G10L11/00 ,  H03M7/30 ,  H04H20/31 ,  H04H9/00 ,  H04N7/16

CPC分类号： H04H20/31

摘要： An encoder includes a sampler that samples an audio signal and that generates from the samples a plurality of short blocks of sampled audio. Each of the short blocks has a duration less than a minimum audibly perceivable signal delay. A processor combines the plurality of short blocks into a long block. The long block is transformed into a frequency domain signal having a plurality of independently modulatable frequency indices. The frequency difference between adjacent indices is determined by the minimum duration and the sampling rate of the sampler. A neighborhood of frequency indices is selected so that the frequency difference between a lowest index and a highest index within the neighborhood is less than a predetermined value. Two or more of the indices are modulated in the neighborhood so as to make a selected one of the indices an extremum while keeping the total energy of the neighborhood constant. A plurality of frequency bands are so coded. A decoder decides that a bit or bits have been received if, in a majority of the frequency bands, the decoder detects a modulated index.

摘要翻译： 编码器包括采样器，其对音频信号进行采样，并且从样本生成多个采样音频的短块。 每个短块具有小于最小可听见的信号延迟的持续时间。 处理器将多个短块组合成长块。 将长块变换成具有多个可独立调制的频率索引的频域信号。 相邻索引之间的频率差由采样器的最小持续时间和采样率决定。 选择频率附加区域，使得邻域内的最低索引和最高索引之间的频率差小于预定值。 在附近调制两个或更多个索引，以便使所选索引中的一个索引成为极值，同时保持邻域的总能量恒定。 多个频带被这样编码。 如果在多数频带中，解码器检测到调制的索引，则解码器判定已经接收到位。

公开(公告)号：US06879652B1

公开(公告)日：2005-04-12

申请号：US09616116

申请日：2000-07-14

申请人： Venugopal Srinivasan

发明人： Venugopal Srinivasan

IPC分类号： G10L19/02 ,  H04L23/00

CPC分类号： G10L19/0212

摘要： An encoder transforms at least a portion of a signal, counts the resulting transform coefficients having a zero value, and encodes the signal with the zero count. A decoder decodes the signal in order to recover the zero count. The decoder may also determine its own zero count of the signal as received and may compare the zero count that it determines to the recovered zero count. The decoder may be arranged to detect compression/decompression based upon results from the comparison, and/or the decoder may be arranged to prevent use of a device based upon results from the comparison.

摘要翻译： 编码器变换信号的至少一部分，对所得到的具有零值的变换系数进行计数，并对该零信号进行编码。 解码器对信号进行解码，以恢复零计数。 解码器还可以确定其自己的接收到的信号的零计数，并且可以将其确定的零计数与恢复的零计数进行比较。 解码器可以被布置为基于来自比较的结果来检测压缩/解压缩，和/或解码器可以被布置为基于比较的结果来防止使用设备。

公开(公告)号：US09286912B2

公开(公告)日：2016-03-15

申请号：US13627495

申请日：2012-09-26

申请人： Venugopal Srinivasan ,  Alexander Topchy

发明人： Venugopal Srinivasan ,  Alexander Topchy

IPC分类号： G06F17/00 ,  G10L25/54 ,  H04H60/39 ,  H04H60/58 ,  H04H60/37 ,  G10L19/018 ,  H04H20/31

CPC分类号： G10L25/54 ,  G10L19/018 ,  H04H20/31 ,  H04H60/37 ,  H04H60/372 ,  H04H60/39 ,  H04H60/58 ,  H04H2201/37 ,  H04H2201/50

摘要： Methods and apparatus are disclosed for identifying media and, more particularly, to methods and apparatus for decoding identifiers after broadcast. An example method includes a portion of an identifying code from a media signal, determine a partition of the look-up table based on the portion of the identifying code wherein the partition of the look-up table includes reference signatures associated with the portion of the identifying code, and identify the media signal by comparing a signature extracted from the media signal to reference signatures in the partition of the look-up table.

摘要翻译： 公开了用于识别媒体的方法和装置，更具体地，涉及用于在广播之后解码标识符的方法和装置。 示例性方法包括来自媒体信号的识别码的一部分，基于识别码的部分确定查找表的分区，其中查找表的分区包括与该部分相关联的参考签名 识别代码，并通过将从媒体信号提取的签名与查找表的分区中的参考签名进行比较来识别媒体信号。