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Lynch Wendell D

Researcher at Nielsen Holdings N.V.

Publications -  37
Citations -  2204

Lynch Wendell D is an academic researcher from Nielsen Holdings N.V.. The author has contributed to research in topics: Audio signal & Code (cryptography). The author has an hindex of 20, co-authored 37 publications receiving 2204 citations.

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Patent

Apparatus and methods for including codes in audio signals and decoding

TL;DR: A code frequency component in the encoded audio signal is detected based on an expected code amplitude or on a noise amplitude within a range of audio frequencies including the frequency of the code component as discussed by the authors.
Patent

Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto

TL;DR: In this article, the authors describe methods and apparatus for encoding and decoding information in broadcast or recorded segment signals using spread spectrum encoding (SSA) for audio broadcast and recorded segment.
Patent

Apparatus and methods for including codes in audio signals

TL;DR: A code frequency component in the encoded audio signal is detected based on an expected code amplitude or on a noise amplitude within a range of audio frequencies including the frequency of the code component as mentioned in this paper.
Patent

Decoding of information in audio signals

TL;DR: In this article, a message symbol is represented by first and second code symbols displaced in time, and values representing the code signals are accumulated (116) and the accumulated values are examined to detect the message symbol.
Patent

Systems and methods for gathering audience measurement data

TL;DR: In this paper, a system and methods for gathering audience measurement data relating to exposure of an audience member to audio data is described. But this method requires the audience member's participation in an audiovisual event.