Methods and Apparatus for Determining Nearfield Localization Using Phase and RSSI Delivery
AssigneeTexas Instruments Incorporated
InventorsPourya Assem, Hun Seok Kim, Jing-Fei Ren, Srinath Mathur Ramaswamy
Life of this patent
Estimating the term…
Abstract
Methods and apparatus to determine nearfield localization using phase and received signal strength indication (RSSI) diversity are disclosed. An example method includes determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; determining a difference between the first strength and the second strength; and determining a transmitter distance based on the difference between the first strength and the second strength.
Claims14
A receiver comprising:
- a received signal strength indication (RSSI) determiner to determine a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter;
- an RSSI difference determiner to determine a difference between the first strength and the second strength;
- and
- a weight applier to determine a transmitter distance based on the difference between the first strength and the second strength.
A method comprising:
- determining a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter;
- determining a difference between the first strength and the second strength;
- and
- determining a transmitter distance based on the difference between the first strength and the second strength.
A computer readable medium comprising instructions that, when executed, cause a machine to at least:
- determine a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter;
- determine a difference between the first strength and the second strength;
- and
- determine a transmitter distance based on the difference between the first strength and the second strength.
Dependencies are inferred from the claim text.