公开(公告)号：WO2009110932A1

公开(公告)日：2009-09-11

申请号：PCT/US2008/082657

申请日：2008-11-06

Applicant: NIELSEN MEDIA RESEARCH, INC.

Inventor： TOPCHY, Alexander, Pavlovich ,  RAMAMSWAMY, Arun ,  SRINIVASAN, Venugopal

IPC: H04H20/14 ,  H04H60/58 ,  G10L11/00

CPC classification number: H04N21/8358 ,  G06F17/30743 ,  G10L25/48 ,  G11B27/28 ,  H04H60/37 ,  H04H60/58 ,  H04H60/66 ,  H04H2201/90 ,  H04N21/442

Abstract: 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.

Abstract translation: 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征进行比较，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。