Precompensating for undesired electrical responses of receiver components of an implantable medical device
First Claim
1. A system comprising:
- an implantable medical device comprising at least one receiver component that has an undesired electrical response, wherein the implantable medical device includes a plurality of band pass channel filters each of which corresponds with a respective one of a plurality of channels of a frequency band; and
an external device that transmits signals to the implantable medical device, wherein the external device maintains a plurality of pre-compensation filters each of which pre-compensates for the undesired electrical response of a respective one of the plurality of band pass channel filters, and the external device selects one of the plurality of pre-compensation filters to apply to the signals based on the one of the plurality of channels selected for transmitting the signal and applies the selected one of the plurality of pre-compensation filters to the signals prior to transmission of the signals to pre-compensate for at least a portion of an undesired electrical response of the at least one receiver component of the implantable medical device.
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Accused Products
Abstract
This disclosure describes to techniques to compensate for distortions introduced into received signals by one or more receiver components that have undesirable electrical responses, such as nonlinear phase response, sloped (or non-flat) amplitude response or both. An external device or other device with more power resources than an IMD filters signals to be transmitted to the IMD to pre-compensate for distortions introduced by the undesired electrical responses of the one or more receiver components of the IMD. In this manner, at least a portion of the burden of digital processing to compensate for undesired electrical responses of the receiver components is shifted from the IMD to the external device, which is better equipped to perform such heavy computationally complex functions.
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Citations
7 Claims
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1. A system comprising:
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an implantable medical device comprising at least one receiver component that has an undesired electrical response, wherein the implantable medical device includes a plurality of band pass channel filters each of which corresponds with a respective one of a plurality of channels of a frequency band; and an external device that transmits signals to the implantable medical device, wherein the external device maintains a plurality of pre-compensation filters each of which pre-compensates for the undesired electrical response of a respective one of the plurality of band pass channel filters, and the external device selects one of the plurality of pre-compensation filters to apply to the signals based on the one of the plurality of channels selected for transmitting the signal and applies the selected one of the plurality of pre-compensation filters to the signals prior to transmission of the signals to pre-compensate for at least a portion of an undesired electrical response of the at least one receiver component of the implantable medical device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification