Methods and apparatus for generating signatures
    1.
    发明授权
    Methods and apparatus for generating signatures 有权
    生成签名的方法和装置

    公开(公告)号:US08600531B2

    公开(公告)日:2013-12-03

    申请号:US12266380

    申请日:2008-11-06

    IPC分类号: G06F17/00 H04R29/00

    摘要: Signaturing methods and apparatus as described. In one example, a signaturing method includes capturing an audio signal, applying a first window function to a portion of the captured audio signal to produce a first windowed audio block, applying a second window function to the portion of the captured audio signal to produce a second windowed audio block, determining a first characteristic of a band of frequencies in the first windowed audio block, determining a second characteristic of the band of frequencies in the second windowed audio block, comparing the first characteristic to the second characteristic, and assigning a signature bit representative of the portion of the captured audio signal based on the comparison of the first characteristic and the second characteristic. Other examples are described.

    摘要翻译: 所述的标记方法和装置。 在一个示例中,签名方法包括捕获音频信号,将第一窗口功能应用于所捕获的音频信号的一部分以产生第一加窗音频块,将第二窗口功能应用于所捕获的音频信号的该部分以产生 确定第一窗口化音频块中的频带的第一特性,确定第二窗口化音频块中的频带的第二特性,将第一特征与第二特性进行比较,以及分配签名 基于第一特性和第二特性的比较,代表捕获的音频信号的部分的位。 描述其他示例。

    Methods and apparatus to extract data encoded in media content
    2.
    发明授权
    Methods and apparatus to extract data encoded in media content 有权
    提取在媒体内容中编码的数据的方法和装置

    公开(公告)号:US08554545B2

    公开(公告)日:2013-10-08

    申请号:US13341092

    申请日:2011-12-30

    IPC分类号: G10L19/14

    摘要: Methods and apparatus to extract data encoded in media content are disclosed. An example method includes sampling a media content signal to generate digital samples, determining a frequency domain representation of the digital samples, determining a first rank of a first frequency in the frequency domain representation, determining a second rank of a second frequency in the frequency domain representation, combining the first rank and the second rank with a set of ranks to create a combined set of ranks, comparing the combined set of ranks to a set of reference sequences, determining a data represented by the combined set of ranks based on the comparison, and storing the data in a memory device.

    摘要翻译: 公开了提取在媒体内容中编码的数据的方法和装置。 一种示例性方法包括对媒体内容信号进行采样以产生数字样本,确定数字样本的频域表示,确定频域表示中的第一频率的第一等级,确定频域中的第二频率的第二等级 表示,将第一等级和第二等级与一组等级组合以创建组合的一组队列,将组合的队列与一组参考序列进行比较,基于比较来确定由组合的队列组合表示的数据 ,并将数据存储在存储器件中。

    METHODS AND APPARATUS TO PERFORM AUDIO WATERMARKING AND WATERMARK DETECTION AND EXTRACTION
    3.
    发明申请
    METHODS AND APPARATUS TO PERFORM AUDIO WATERMARKING AND WATERMARK DETECTION AND EXTRACTION 有权
    执行音频水印和​​水印检测和提取的方法和设备

    公开(公告)号:US20130114831A1

    公开(公告)日:2013-05-09

    申请号:US13730271

    申请日:2012-12-28

    IPC分类号: G10L19/018

    摘要: Encoding and decoding methods and apparatus as described. An example method of obtaining auxiliary information in an audio signal using a plurality of frequency components residing in a plurality of code bands comprises transforming an audio signal into a frequency domain representation; determining characteristic of frequencies of the frequency domain representation that may contain the auxiliary information; normalizing across the code bands the characteristics of frequencies of the frequency domain representation in a respective one of the code bands that may contain the auxiliary information, wherein the normalization is carried out against a characteristic of a frequency in that code band; summing the normalized characteristics of the frequencies representative of auxiliary information to determine a sum for a frequency representative of auxiliary information; and determining that the sum is representative of the auxiliary information.

    摘要翻译: 编码和解码方法和装置如上所述。 使用驻留在多个码带中的多个频率分量在音频信号中获得辅助信息的示例方法包括将音频信号变换为频域表示; 确定可能包含辅助信息的频域表示的频率特性; 在编码带上对可能包含辅助信息的相应一个码带中的频域表示的频率的特性进行归一化,其中针对该码带中的频率的特性执行归一化; 对代表辅助信息的频率的归一化特征求和,以确定表示辅助信息的频率的和; 并且确定所述和代表所述辅助信息。

    METHODS AND APPARATUS TO PERFORM AUDIO WATERMARKING AND WATERMARK DETECTION AND EXTRACTION
    6.
    发明申请
    METHODS AND APPARATUS TO PERFORM AUDIO WATERMARKING AND WATERMARK DETECTION AND EXTRACTION 有权
    执行音频水印和​​水印检测和提取的方法和设备

    公开(公告)号:US20100223062A1

    公开(公告)日:2010-09-02

    申请号:US12464811

    申请日:2009-05-12

    IPC分类号: G10L19/00

    摘要: Methods and apparatus to audio watermarking and watermark detection and extracted are described herein. According to an example method, an identifier is encoded in media content when a different identifier has been previously encoded. According to another example method, messages decoded from media content are validated to provide improved decoding accuracy. In another example method, decoded symbols are stored in memory and synchronization symbols are located to detect a message encoded in media content.

    摘要翻译: 本文描述了音频水印和​​水印检测和提取的方法和装置。 根据示例方法,当先前编码了不同的标识符时,标识符被编码在媒体内容中。 根据另一示例性方法,验证从媒体内容解码的消息以提供改进的解码精度。 在另一示例性方法中,解码的符号被存储在存储器中,并且定位同步符号以检测在媒体内容中编码的消息。

    METHODS AND APPARATUS FOR GENERATING SIGNAURES
    7.
    发明申请
    METHODS AND APPARATUS FOR GENERATING SIGNAURES 有权
    用于生成信号的方法和装置

    公开(公告)号:US20090225994A1

    公开(公告)日:2009-09-10

    申请号:US12266380

    申请日:2008-11-06

    IPC分类号: H04R29/00

    摘要: Signaturing methods and apparatus as described. In one example, a signaturing method includes capturing an audio signal, applying a first window function to a portion of the captured audio signal to produce a first windowed audio block, applying a second window function to the portion of the captured audio signal to produce a second windowed audio block, determining a first characteristic of a band of frequencies in the first windowed audio block, determining a second characteristic of the band of frequencies in the second windowed audio block, comparing the first characteristic to the second characteristic, and assigning a signature bit representative of the portion of the captured audio signal based on the comparison of the first characteristic and the second characteristic. Other examples are described.

    摘要翻译: 所述的标记方法和装置。 在一个示例中,签名方法包括捕获音频信号,将第一窗口功能应用于所捕获的音频信号的一部分以产生第一加窗音频块,将第二窗口功能应用于所捕获的音频信号的该部分以产生 确定第一窗口化音频块中的频带的第一特性,确定第二窗口化音频块中的频带的第二特性,将第一特征与第二特性进行比较,以及分配签名 基于第一特性和第二特性的比较,代表捕获的音频信号的部分的位。 描述其他示例。

    Methods and apparatus to perform audio watermarking and watermark detection and extraction
    8.
    发明授权
    Methods and apparatus to perform audio watermarking and watermark detection and extraction 有权
    执行音频水印和​​水印检测和提取的方法和装置

    公开(公告)号:US09460730B2

    公开(公告)日:2016-10-04

    申请号:US13730271

    申请日:2012-12-28

    摘要: Encoding and decoding methods and apparatus are described to obtain auxiliary information from an audio signal. The auxiliary information uses a plurality of frequency components residing in a plurality of code bands. The audio signal is transformed into a frequency domain representation. Characteristics of frequencies of the frequency domain representation that may contain the auxiliary information are determined. The characteristics of frequencies of the frequency domain representation in a respective one of the code bands that may contain the auxiliary information are normalized across the code band. The normalization is carried out against a characteristic of a frequency in that code band. The normalized characteristics of the frequencies representative of auxiliary information are summed to determine a sum for a frequency representative of auxiliary information. It is determined when the sum is representative of the auxiliary information.

    摘要翻译: 描述编码和解码方法和装置以从音频信号获得辅助信息。 辅助信息使用驻留在多个码带中的多个频率分量。 音频信号被转换成频域表示。 确定可能包含辅助信息的频域表示的频率特性。 可以包含辅助信息的相应一个码带中的频域表示的频率的特性在码带上被归一化。 根据该频带的频率的特性进行归一化。 表示辅助信息的频率的归一化特征相加以确定表示辅助信息的频率的和。 确定何时代表辅助信息。

    Methods and apparatus to measure exposure to logos in vehicle races
    9.
    发明授权
    Methods and apparatus to measure exposure to logos in vehicle races 有权
    测量车辆标志暴露的方法和装置

    公开(公告)号:US09100720B2

    公开(公告)日:2015-08-04

    申请号:US13829313

    申请日:2013-03-14

    IPC分类号: G06K9/00 H04N21/81

    CPC分类号: H04N21/812 H04N5/23296

    摘要: Methods and apparatus to measure logo exposure in vehicle races are disclosed. An example apparatus includes a vehicle database containing first time-location data identifying a first set of physical locations of a first vehicle at corresponding points in time, the first vehicle to display a first logo; a camera database containing time-camera view data identifying a set of views of a camera at corresponding points in time; and credit logic to determine whether to credit the first logo with an exposure to the camera based on the first time-location data and the time-camera view data.

    摘要翻译: 公开了在车辆种类中测量标识曝光的方法和装置。 示例性装置包括车辆数据库,其包含识别第一车辆在相应时间点的第一组物理位置的第一时间位置数据,第一车辆显示第一标识; 相机数据库,其包含用于识别在相应时间点的相机的一组视图的时间相机视图数据; 以及信用逻辑,用于基于第一时间位置数据和时间 - 相机视图数据来确定是否对第一标志进行曝光以照相机。

    Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking
    10.
    发明授权
    Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking 有权
    用于对购物者位置和广告呈现跟踪的音频进行编码和解码的方法和装置

    公开(公告)号:US08508357B2

    公开(公告)日:2013-08-13

    申请号:US12626571

    申请日:2009-11-25

    IPC分类号: G06Q30/00 G08B1/08

    CPC分类号: G06Q30/02

    摘要: Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking are disclosed. A method for tracking a shopper includes receiving a first audio signal at a first location with a decoder attached to a shopping implement, determining a first code encoded in the first audio signal, receiving a second audio signal at a second location with the decoder, determining a second code encoded in the first audio signal, and transmitting the first code and the second code to a data retrieval device.

    摘要翻译: 公开了用于对购物者位置和广告呈现跟踪的音频进行编码和解码的方法和装置。 用于跟踪购物者的方法包括:在第一位置接收第一音频信号,附接到购物机构的解码器,确定在第一音频信号中编码的第一代码,在解码器的第二位置接收第二音频信号,确定 编码在第一音频信号中的第二代码,并将第一代码和第二代码发送到数据检索设备。