SENSING AND ACTUATION OF BIOLOGICAL FUNCTION USING ADDRESSABLE TRANSMITTERS OPERATED AS MAGNETIC SPINS

摘要

Methods and apparatuses for sensing biological functions are disclosed. Sensors can be implanted in an organ, such as the brain, and a magnetic field gradient applied to the biological tissue. The field causes the sensors to have different resonant frequencies allowing their spatial localization. The sensors can harvest power from the external coils to be able to retransmit data.

主权项

1. A device comprising:
a substrate; an antenna attached to a surface of the substrate, the antenna being substantially planar; an oscillator circuit on the surface of the substrate; a transmitter and receiver circuit on the surface of the substrate; a control logic circuit on the surface of the substrate; and at least one sensor on the surface of the substrate, the at least one sensor comprising at least one magnetic sensor, wherein
the antenna is configured to transmit and receive electromagnetic waves at a first frequency and a first phase between the device and a communication device,the transmitter and receiver circuit is configured to operate the antenna,the at least one sensor is configured to sense an applied magnetic field, and to shift a transmitting or receiving frequency from the first frequency to a second frequency, or a transmitting or receiving phase from the first phase to a second phase, said shift being based on the applied magnetic field;the dimensions of the antenna and the oscillator circuit are configured to allow spatial localization of the device when the device is within a magnetic field gradient.