LIMITED USE HEARING AID

Autor: Zezhang Hou
Rok vydání: 2012
Předmět:
Zdroj: The Journal of the Acoustical Society of America. 132:4094
ISSN: 0001-4966
DOI: 10.1121/1.4770425
Popis: A hearing aid (or other assistive listening device) that is suitable for limited use is disclosed. The hearing aid can be configured to be usable for a predetermined period of time. After the expiration of the predetermined period of time, the hearing aid can cease to operate or operate in a degraded manner. Once the hearing aid has become significantly degraded, it can be either disposed of or reconfigured (or reprogrammed) so as to be usable for an additional period of time.
Databáze: OpenAIRE