Multiple Antenna Localizing
First Claim
1. A reader, comprising:
- a single receiver circuit;
a switching circuit coupled to the single receiver circuit;
a first antenna connection coupled to the switching circuit, the first antenna connection configured to receive a first signal from a source of radio frequency waves;
a second antenna connection coupled to the switching circuit, the second antenna connection configured to receive a second signal from the source of radio frequency waves; and
a processor configured to determine angle of arrival information in accordance with the first and second signals.
4 Assignments
0 Petitions
Accused Products
Abstract
A reader includes a single receiver circuit and a switching circuit coupled to the single receiver circuit. A first antenna connection is coupled to the switching circuit, wherein the first antenna connection is configured to receive a first signal from a source of radio frequency waves. A second antenna connection is coupled to the switching circuit and configured to receive a second signal from the source of radio frequency waves. A processor is configured to determine angle of arrival information in accordance with the first and second signals. The processor is further configured to determine relative phase information in accordance with the first and second signals. Additionally, the processor is configured to localize the source of radio frequency waves in accordance with the angle of arrival information. The switching circuit includes a multiplexer selectively coupling the first and second antenna connections to the single receiver circuit.
-
Citations
20 Claims
-
1. A reader, comprising:
-
a single receiver circuit; a switching circuit coupled to the single receiver circuit; a first antenna connection coupled to the switching circuit, the first antenna connection configured to receive a first signal from a source of radio frequency waves; a second antenna connection coupled to the switching circuit, the second antenna connection configured to receive a second signal from the source of radio frequency waves; and a processor configured to determine angle of arrival information in accordance with the first and second signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A tag communication method in a reader having at least two antenna connections, comprising:
-
(a) coupling a first antenna connection to a single receiver circuit; (b) receiving a first signal from a source of radio frequency waves by way of the first antenna connection and the single receiver circuit, (c) coupling a second antenna connection to the single receiver circuit; (d) receiving a second signal from the source of radio frequency waves by way of the second antenna connection and the single receiver circuit; and (e) determining angle of arrival information in accordance with the first and second signals. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification