发明名称 Multi-electrode channel configurations for a hearing prosthesis
摘要 An apparatus and method for determining stimulation channels for a stimulating device is provided. This method and apparatus may involve computing a set of weights for the plurality of stimulation channels of the stimulating hearing prosthesis. These weights may be determined by determining a transimpedance matrix for the stimulating hearing prosthesis where a diagonal of the transimpedance matrix is determined by extrapolation. A transadmittance matrix may then be computed for this transimpedance matrix. An error may then be computed base on positive off-diagonal terms of the transadmittance matrix. The apparatus and method may determine the weights for the stimulation channels by determining an adjustment to the diagonal of the transimpedance matrix that results in a computed error that does not exceed a specified criterion level.
申请公布号 US9031661(B2) 申请公布日期 2015.05.12
申请号 US201012782604 申请日期 2010.05.18
申请人 Cochlear Limited 发明人 Smith Zachary M.;van den Honert Christopher
分类号 A61N1/05;A61N1/36;H04R25/00;H03G9/00 主分类号 A61N1/05
代理机构 代理人
主权项 1. A method for determining weights for a stimulation channel of a stimulating hearing prosthesis having a plurality of electrodes, wherein the stimulation channel uses the determined weights in providing stimulation using a plurality of the electrodes of the stimulating medical device, the method comprising: determining a transimpendance matrix for the plurality of electrodes; computing, at an error minimization module, a transadmittance matrix for the plurality of electrodes, the transadmittance matrix being a matrix inversion of the transimpedance matrix; computing, at the error minimization module, an error value based on positive off-diagonal values of the transadmittance matrix; determining if the error value exceeds a criterion level value; adjusting, at the error minimization module, a diagonal of the transimpedance matrix in response to determining that the criterion level value is exceeded; calculating, at a weight calculation module, the corresponding weights for the plurality of electrodes for the stimulation channel using the adjusted transimpedance matrix; and providing, via an interface, the calculated weights to the stimulating medical device for use in providing stimulation to a recipient of the stimulating medical device.
地址 Macquarie University, NSW AU