Method to reduce the power consumation of a digital filter...

H - Electricity – 03 – H

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03H 17/02 (2006.01)

Patent

CA 2098711

digital filter bank for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly proposed a filter bank far use in battery-operated applications. The digital filter bank includes a zero-filled digital basic filter [H1 (z)] having a complementary output, and downstream, parallel part-filter banks [H D1; H D2]. In the present context, a zero-filled filter pertains to a filter which maybe based on an LP-filter which is expanded with a number of zero-value filter coefficients between each coefficient in the original filter. The part-filter bank[H D1] connected to the normal output of the basic filter [H1 (z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the, filter-bank bands is found on each output signal from said one part-filter bank [H D1]. The other part-filter bank [H D2] connected to the complementary output of the basic filter [H1 (z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from he second part-filter bank [HD2].

Batterie de filtres numériques dont on réduit la consommation de puissance en réduisant le nombre de multiplications qu'elle effectue. On a prévu notamment une batterie de filtres fonctionnant sur piles. La batterie de filtres numériques comprend un filtre numérique de base garni de zéros [H1 (z)] possédant une sortie complémentaire et, en aval de celui-ci, des batteries de filtres partiels parallèles [HD1, HD2]. Dans ce contexte, le filtre garni de zéros se rapporte à un filtre pouvant être fondé sur un filtre passe-bas agrandi par un certain nombre de coefficients de filtre à valeur zéro entre chaque coefficient du filtre initial. La batterie de filtres partiels [HD1] raccordée à la sortie normale du fitre de base [H1 (z)] est destinée à éliminer par filtrage les bandes de batterie de filtres qui sont des bandes passantes au filtre de base, de sorte qu'une seule des bandes de la batterie de filtres se trouve sur chaque signal en sortie de ladite batterie de filtres partiels [HD1]. L'autre batterie de filtres partiels [HD2] raccordée à la sortie complémentaire du filtre de base [H1 (z)] est destinée à éliminer par filtrage les bandes de batterie de filtres qui sont des bandes passantes à la sortie complémentaire du filtre de base, de sorte qu'une seule bande de la batterie de filtres se trouve sur chaque signal en sortie de la seconde batterie de filtres partiels [HD2].

LandOfFree

Say what you really think

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

Rating

Method to reduce the power consumation of a digital filter... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method to reduce the power consumation of a digital filter..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method to reduce the power consumation of a digital filter... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1538224

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