Title :
A Fully Integrated Digital Hearing-Aid Chip with Human-Factors Considerations
Author :
Kim, Sunyoung ; Lee, Seung Jin ; Cho, Namjun ; Song, Seong-Jun ; Yoo, Hoi-Jun
Author_Institution :
KAIST, Daejeon
Abstract :
A digital hearing-aid chip integrates a pre-fitting verification algorithm to obtain gain fitting in two steps: coarse and fine. The internal ear canal modeling filter circuit enables the coarse fitting based on the shape of the external ear. Fine fitting verification is performed with external inputs. The 3.74mm2 chip draws less than 120muA from a single 0.9V supply in a 0.18mum CMOS technology.
Keywords :
CMOS digital integrated circuits; filters; hearing aids; human factors; 0.18 micron; 0.9 V; CMOS technology; coarse fitting; filter circuit; fine fitting; gain fitting; human-factors considerations; integrated digital hearing-aid chip; internal ear canal modeling; pre-fitting verification algorithm; Auditory system; DH-HEMTs; Deafness; Ear; Electromagnetic compatibility; Filters; Human factors; Irrigation; Resonance; Shape;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0853-9
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373634
