DocumentCode :
3034333
Title :
FIR filter hardware reduction with adaptive delta-modulation
Author :
Lawrence, William F. ; Newcomb, Robert W.
Author_Institution :
The Bendix Corporation, Baltimore, Maryland
Volume :
4
fYear :
1979
fDate :
28946
Firstpage :
849
Lastpage :
852
Abstract :
This paper presents a new type of digital system which makes use of adaptive delta-modulation for input digitization and is particularly suited to the hardware implementation of small, low power, programmable digital filters. An experimental prototype was built which demonstrated a finite impulse response (FIR) digital filter. This filter has no requirement for hardware multipliers and has a significant reduction in input sample storage capacity when compared to equivalent pulse code modulation (PCM) filters. Quantitative as well as qualitative results show that this new filter is especially useful with voice inputs.
Keywords :
Adaptive filters; Difference equations; Digital filters; Digital systems; Finite impulse response filter; Hardware; Modulation coding; Phase change materials; Prototypes; Pulse modulation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '79.
Type :
conf
DOI :
10.1109/ICASSP.1979.1170606
Filename :
1170606
Link To Document :
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