Hearing aid and a method of compensating magnetic distortion

H - Electricity – 04 – R

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04R 25/00 (2006.01) A61F 2/18 (2006.01) H04R 25/02 (2006.01)

Patent

CA 2445727

A hearing aid has a capacitor with a large capacitance coupled in parallel with the energy source for transient current supply. The operating period of the battery is prolonged compared to prior art digital hearing aids. Further, the smaller variations in supply voltage lead to less distortion of the output signal of the hearing aid signal processor. In a hearing aid with a telecoil, a well defined current path for the current transients generating the high magnetic fields picked up by the telecoil is established. This facilitates the design of a compensating current path capable of offsetting magnetic interference of the telecoil by the power supply loop, that is substantially independent of battery type and position.

Dans la présente invention, un appareil auditif comprend un condensateur (12) dans lequel une grande capacité est couplée en parallèle à la source d'énergie (14) pour assurer une alimentation en courant transitoire. La durée de fonctionnement de la pile est prolongée comparativement à celle des appareils auditifs numériques de l'art antérieur. De plus, les faibles variations de la tension d'alimentation produisent une distorsion plus faible du signal de sortie du processeur de signal de l'appareil auditif. Dans un appareil auditif pourvu d'un phonocapteur (26), il est établi un chemin de courant bien défini pour les phénomènes de courant transitoires générant les champs magnétiques élevés captés par le phonocapteur. Ceci facilite la création d'un chemin (31) de courant compensateur capable de décaler l'interférence magnétique du phonocapteur par la boucle d'alimentation en puissance, qui est sensiblement indépendante du type de pile et de la position.

LandOfFree

Say what you really think

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

Rating

Hearing aid and a method of compensating magnetic distortion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hearing aid and a method of compensating magnetic distortion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hearing aid and a method of compensating magnetic distortion will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2062804

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