Title :
Low-power constant-coefficient FIR filtering in a hearing aid application
Author :
Carbognani, Flavio ; Buergin, Felix ; Kraehenbuehl, Daniel ; Zuercher, Franz ; Felber, Norbert ; Kaeslin, Hubert ; Fichtner, Wolfgang
Author_Institution :
Integrated Syst. Lab., ETH Zurich
Abstract :
A new constant-coefficient FIR filter architecture is hereby presented, specifically designed for a VLSI adaptive directional microphone for hearing aids. Gate-level simulations targeting a 0.25 mum process point out relevant power savings compared to both the fully time-shared reference design (-80%) and a recently published low-power circuit (-32%), with a limited 11% area overhead compared to the latter one
Keywords :
FIR filters; VLSI; hearing aids; low-power electronics; medical signal processing; microphones; 0.25 micron; VLSI adaptive directional microphone; constant-coefficient FIR filtering; finite impulse response filtering; hearing aid application; low-power circuit; Auditory system; Computer architecture; Delay; Filtering; Finite impulse response filter; Hearing aids; Laboratories; Microphones; Very large scale integration; Working environment noise;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306357
