The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2012
Filed:
Jul. 01, 2010
Christopher J. James, Toulouse, FR;
Christopher J. James, Toulouse, FR;
Cochlear Limited, Macquarie University, NSW, AU;
Abstract
Methods and systems are disclosed for determining the stimulation channels for application of stimulation by a medical device, such as a cochlear implant or an auditory brain stimulator. In embodiments, the medical device filters a received signal to obtain a plurality of band-pass filtered signals, each corresponding to one or more stimulation channels. The medical device then selects a stimulation channel for application of stimulation based on the amplitudes of the band-pass filtered signals. The medical device determines whether to apply stimulation on the adjacent stimulation channels by determining if the amplitude of the corresponding adjacent stimulation channel exceeds an information limit. If the amplitudes for either adjacent channel fall below the information limit, the corresponding adjacent stimulation channel is eliminated from consideration. The medical device further may determine the amplitudes for application of stimulation on the adjacent stimulation channels, if selected, using a pitch steering function. This pitch steering function may specify a current level difference between the selected stimulation channel and the adjacent stimulation channel to use in applying the stimulation.