Method and apparatus for identifying a digital audio signal

a digital audio and signal technology, applied in the field of method and apparatus for identifying program signals, can solve the problem that video encoding arrangements that work well with analog video signals are incompatible with digital transmission

Inactive Publication Date: 2003-07-10
NIELSEN MEDIA RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, some video encoding arrangements that work well with analog video signals are incompatible with digital transmission because such codes, if...

Method used

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  • Method and apparatus for identifying a digital audio signal
  • Method and apparatus for identifying a digital audio signal
  • Method and apparatus for identifying a digital audio signal

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Embodiment Construction

[0025] 1. Introduction

[0026] While the present invention will be described with respect to television audience monitoring (e.g., Nielsen television rating) systems, it should be understood that the present invention applies equally well to radio audience monitoring, Internet audience monitoring, radio / TV commercial verification, copyright royalty collection, etc. As used herein, the term "program signal" refers to segments of various lengths such as all or parts of programs, commercials, promotional messages, public service announcements, and the like, as well as signals generated from consumer program signal storage equipment such as video cassette recorders (analog or digital), CD players, VCD players, DVD players and the like.

[0027] Briefly, the preferred embodiment receives a digital program signal and analyzes it in one or more of four different ways. First, the preferred embodiment can identify any program-identifying label that is present in compressed digital audio signals. ...

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PUM

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Abstract

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.

Description

[0001] 1. Field of the Invention[0002] The present invention relates to method and apparatus for identifying a program signal that is broadcast to members of an audience. More particularly, the present invention relates to method and apparatus for identifying a program signal having a digital audio component. Preferably, such method and apparatus will find use in audience measurement and / or broadcast monitoring services.[0003] 2. Related Art[0004] Third party measurements are typically used in the broadcasting industry to verify that program elements (e.g., commercials) are disseminated in accordance with contractual arrangements, and to estimate the size and composition of the audience. One measurement technique involves reading an ancillary encoded identification label or signal that is transmitted with the program. Another measurement technique involves extracting characteristic features (commonly called "signatures") from the program, and then comparing the extracted features wi...

Claims

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Application Information

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IPC IPC(8): H04H1/00H04H60/37H04H60/58H04H60/59H04N7/173H04N21/235H04N21/433H04N21/439H04N21/442H04N21/81H04N21/8352
CPCH04H60/37H04H60/58H04H60/59H04H2201/90H04N7/17318H04N21/8352H04N21/4331H04N21/4394H04N21/44213H04N21/812H04N21/235H04N21/233
Inventor PEIFFER, JOHN C.HICKS, MICHAEL A.WRIGHT, DAVID HOWELLMEARS, PAUL MARKSRINIVASAN, VENUGOPALLU, DAOZHENGKEMPTER, PAUL C.
Owner NIELSEN MEDIA RES
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