Apparatus and method for detecting and characterizing...

G - Physics – 10 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G10L 11/02 (2006.01) G10L 11/04 (2006.01)

Patent

CA 2279650

An apparatus and method for detecting and characterizing signals in a communication system provides efficient voice, tone, and noise detection which reduces the amount of processing resources consumed and also distributes the processing demand over time. The present invention provides for such efficient voice (412), tone (414), and noise (410) detection by applying the Average Magnitude Difference Function (404) over discrete time intervals to evaluate variations in pitch over time, allowing a hypothesis (402) to be made as to whether a signal is a voice, tone, or noise signal. Two novel metrics are computed which characterize the signal as to pitch and variation in pitch. Rule-based logic is applied to detect transitions between the types of signals.

Appareil et procédé de détection et de caractérisation de signaux dans un système de communication, permettant d'assurer la détection efficace de voix, de tonalité et de bruit, de réduire la quantité de ressources de traitement utilisées et de répartir également la demande de traitement dans le temps. L'invention concerne la détection efficace de voix (412), de tonalité (414) et de bruit (410) par l'application de la fonction de différence d'amplitude moyenne (404) sur des intervalles de temps discrets, pour permettre l'évaluation des variations de hauteur dans le temps, et d'émettre une hypothèse (402) sur le type du signal, à savoir s'il s'agit d'un signal vocal, d'une tonalité ou d'un signal de bruit. Deux nouveaux paramètres sont calculés, lesquels caractérisent le signal pour ce qui concerne sa hauteur et les variations de celle-ci. Une logique à base de règles est appliquée pour la détection des transitions entre les types de signaux.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for detecting and characterizing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for detecting and characterizing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting and characterizing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1541811

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.