Implantable medical device with hall sensor
First Claim
Patent Images
1. An apparatus comprising:
- an implantable medical device including;
a Hall effect sensor configured to sense a magnetic field and to provide at least one of a current or a voltage in response to the magnetic field;
a processor electrically coupled to the Hall effect sensor, the processor configured to select an operating mode of the implantable medical device using at least one of the current or the voltage provided by the Hall effect sensor;
a polling circuit electrically coupled to the Hall effect sensor and configured to provide an excitation current to the Hall effect sensor; and
an analog-to-digital converter electrically coupled to the Hall effect sensor and configured to measure at least one of the current or the voltage provided by the Hall effect sensor in response to the magnetic field; and
wherein the Hall effect sensor and the polling circuit are included in a commonly-shared semiconductor integrated circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
An operating mode of an implantable medical device can be selected using at least one of a current or a voltage provided in response to a magnetic field sensed using a Hall effect sensor.
102 Citations
19 Claims
-
1. An apparatus comprising:
an implantable medical device including; a Hall effect sensor configured to sense a magnetic field and to provide at least one of a current or a voltage in response to the magnetic field; a processor electrically coupled to the Hall effect sensor, the processor configured to select an operating mode of the implantable medical device using at least one of the current or the voltage provided by the Hall effect sensor; a polling circuit electrically coupled to the Hall effect sensor and configured to provide an excitation current to the Hall effect sensor; and an analog-to-digital converter electrically coupled to the Hall effect sensor and configured to measure at least one of the current or the voltage provided by the Hall effect sensor in response to the magnetic field; and wherein the Hall effect sensor and the polling circuit are included in a commonly-shared semiconductor integrated circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
9. A method comprising:
-
exciting a Hall effect sensor using a polling circuit configured to provide an excitation current to the Hall effect sensor, the polling circuit and the Hall effect sensor included in a commonly-shared semiconductor integrated circuit; sensing a magnetic field using a Hall effect sensor, including monitoring at least one of a current or a voltage provided by the Hall effect sensor in response to the sensed magnetic field; and in response, selecting an operating mode of an implantable medical device using information provided by the monitoring at least one of the current or the voltage; and wherein the monitoring at least one of the current or the voltage includes using an analog-to-digital converter electrically coupled to the Hall effect sensor. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
-
16. A processor-readable medium including instructions that, when performed by the processor, cause an implantable medical device to:
-
excite a Hall effect sensor using a polling circuit configured to provide an excitation current to the Hall effect sensor, the polling circuit and the Hall effect sensor included in a commonly-shared semiconductor integrated circuit comprising a portion of the implantable medical device; sense a magnetic field using a Hall effect sensor, including monitoring at least one of a current or a voltage provided by the Hall effect sensor in response to the sensed magnetic field; and select an operating mode of the implantable medical device using at least one of the current or the voltage; and wherein the monitoring at least one of the current or the voltage includes using an analog-to-digital converter electrically coupled to the Hall effect sensor. - View Dependent Claims (17, 18, 19)
-
Specification