Multirate cochlear stimulation strategy and apparatus

US7574264B2 · kind B2 · utility

Assignee

• Cochlear Limited · AU

Inventors

• Joe Wolfe · Sydney, AU
• Paul Michael Carter · Parramatta, AU
• Robert Fearn · Sydney, AU
• Niki Frampton · Parramatta, AU
• Simon Geoffrey Parker · Chatswood, AU

Key dates

• Filing date: Mar 22, 2006
• Grant date: Aug 11, 2009
• Expiry date: Jun 2, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/36038
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A cochlear implant system in which information about the periodicity of a received audio signal in each filter channel is used as a factor in determining the rate of stimulation applied to a tonotopically placed electrode corresponding to the relevant filter channel. As such, the stimulation rate for each electrode is related to the periodicity of the signal in the filter channel corresponding to that electrode. This may allow for improved perception of pitch by the implant recipient.