Adaptive staged wake-up for implantable medical device communication
First Claim
1. An implantable medical device, comprising:
- a radio frequency transceiver configured to receive at least one radio frequency signal and identify if the signal is a valid communications signal;
a counter configured to maintain a count indicative of a quantity of times valid communication signals within the at least one radio frequency signal have been identified following a transition to a fully awakened mode of a staged signal detection scheme or a quantity of times valid communication signals have not been identified following a transition to a fully awakened mode of a staged signal detection scheme;
a parameter adapter coupled to receive the count from the counter and configured to adapt a signal detection parameter based on the count; and
a comparator coupled to receive an adapted signal detection parameter from the parameter adapter and configured to determine during a partially awakened mode of the staged signal detection scheme whether to invoke the fully awakened mode to enable communication with an external device, wherein the determination is based on the received at least one radio frequency signal and the adapted signal detection parameter.
0 Assignments
0 Petitions
Accused Products
Abstract
A communication wake-up scheme for an implantable medical device may involve repeatedly activating a receiver to determine whether an external device is attempting to establish communication with the implantable device. To reduce the amount of power consumed by the implantable device in conjunction with the wake-up scheme, the scheme may involve conducting preliminary radio frequency signal detections as a precursor to conducting a full scan. In this way, power may be conserved since the more power intensive full scans may be performed less frequently. This preliminary detection of radio frequency signals also may be adapted to reduce the number of full scans performed by the implantable device that do not result in communication with the external device. In some embodiments the adaptation involves adjusting one or more thresholds that are used in conjunction with the preliminary detection of radio frequency signals.
-
Citations
19 Claims
-
1. An implantable medical device, comprising:
-
a radio frequency transceiver configured to receive at least one radio frequency signal and identify if the signal is a valid communications signal; a counter configured to maintain a count indicative of a quantity of times valid communication signals within the at least one radio frequency signal have been identified following a transition to a fully awakened mode of a staged signal detection scheme or a quantity of times valid communication signals have not been identified following a transition to a fully awakened mode of a staged signal detection scheme; a parameter adapter coupled to receive the count from the counter and configured to adapt a signal detection parameter based on the count; and a comparator coupled to receive an adapted signal detection parameter from the parameter adapter and configured to determine during a partially awakened mode of the staged signal detection scheme whether to invoke the fully awakened mode to enable communication with an external device, wherein the determination is based on the received at least one radio frequency signal and the adapted signal detection parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification