Browse Prior Art Database

Nesting Implementation of Digital Filter Banks

IP.com Disclosure Number: IPCOM000053904D
Original Publication Date: 1981-Nov-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Nussbaumer, H [+details]

Abstract

Digital filter banks and frequency division multiplex (FDM) to pulse code modulation (PCM) transmultiplexers have many applications and large efforts have been devoted to the digital implementation of these devices [1]. We develop here a new implementation based on discrete Fourier transforms (DFTs), inverse discrete cosine transforms (IDCTs) and a nesting of DPTs and IDCTs.