Invention Grant
US08634946B2 Apparatus and method for calculating a fingerprint of an audio signal, apparatus and method for synchronizing and apparatus and method for characterizing a test audio signal
有权
用于计算音频信号的指纹的装置和方法，用于同步的装置和方法以及用于表征测试音频信号的装置和方法
- Patent Title: Apparatus and method for calculating a fingerprint of an audio signal, apparatus and method for synchronizing and apparatus and method for characterizing a test audio signal
- Patent Title (中): 用于计算音频信号的指纹的装置和方法，用于同步的装置和方法以及用于表征测试音频信号的装置和方法
-
Application No.: US12867460Application Date: 2009-02-10
-
Publication No.: US08634946B2Publication Date: 2014-01-21
- Inventor: Sebastian Scharrer , Wolfgang Fiesel , Matthias Neusinger
- Applicant: Sebastian Scharrer , Wolfgang Fiesel , Matthias Neusinger
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: DE102008009025 20080214
- International Application: PCT/EP2009/000917 WO 20090210
- International Announcement: WO2009/100875 WO 20090820
- Main IPC: G06F17/00
- IPC: G06F17/00 ; H03M9/00 ; H03M1/00 ; H04K1/02
Abstract:
For calculating a fingerprint of an audio signal, the audio signal is divided into subsequent blocks of samples. For the subsequent blocks, one fingerprint value each is calculated, wherein fingerprint samples of subsequent blocks are compared. Based on whether the fingerprint value of a block is higher than the fingerprint value of a subsequent block or not, a binary value is assigned, wherein information about a sequence of binary values is output as fingerprint for the audio signal.
Public/Granted literature
Information query
