Dynamic carrier system for parametric arrays

H - Electricity – 04 – R

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04R 3/00 (2006.01) G10K 15/02 (2006.01) H04B 3/00 (2006.01)

Patent

CA 2459109

A system (Fig. 2) configured to dynamically adjust the ultrasonic carrier level in a parametric array system in response to changing source signal input levels, and which employs a look-ahead delay strategy (delay line) to enable optimal modulation of the carrier wave to eliminate constant ultrasonic carrier emission (dynamic carrier controller/expander) and reduce the ultrasonic carrier emission to what is actually needed to accomodate the db range of the source material, and at the same time, to also minimize noticeable distortion and sound artifacts of a high-power ultrasonic carrier, and/or distortion/artifacts arising from modulation of an ultrasonic carrier to reduce average power output; and thus it realizes advantages of carrier modulation based on source-signal level, while minimizing inherent drawbacks of carrier modulation.

L'invention concerne un système configuré pour ajuster de manière dynamique le niveau de porteuse ultrasonore dans un système à réseau paramétrique en réponse à des variations de niveaux d'entrée de signal. Le système selon l'invention fait appel à une stratégie de retard pour permettre une anticipation et assurer une modulation optimale de l'onde porteuse dans le but d'éliminer l'émission de porteuse ultrasonore constante et de réduire l'émission de porteuse ultrasonore au niveau réellement nécessaire pour la gamme dynamique (dB) du matériau source, et, dans le même temps, pour minimiser également la distorsion perceptible et les artéfacts sonores d'une porteuse ultrasonore haute puissance, et/ou la distorsion ou les artéfacts provenant de la modulation d'une porteuse ultrasonore afin de réduire la puissance de sortie moyenne. Le système selon l'invention permet ainsi d'obtenir les avantages d'une modulation de porteuse sur la base du niveau de signal source, tout en minimisant les inconvénients inhérents de la modulation de porteuse.

LandOfFree

Say what you really think

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

Rating

Dynamic carrier system for parametric arrays does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic carrier system for parametric arrays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic carrier system for parametric arrays will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1817007

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