METHOD AND SYSTEM TO MEASURE THE PHASE OFFSET BASED ON THE FREQUENCY RESPONSE IN A NFC SYSTEM
First Claim
1. A method for compensating phase offset caused by a matching network and antenna of a communications device, the method comprising:
- generating a mapping that correlates phase offset with a characteristic parameter;
measuring the characteristic parameter for the communications device;
using the measured characteristic parameter and the mapping to determine a phase offset for the communications device; and
using the determined phase offset to compensate for the phase offset caused by the matching network and antenna of the communications device.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides for a method and system for compensating phase offset caused by a matching network and antenna of a communications device. The method comprises: generating a mapping that correlates phase offset with a characteristic parameter; measuring the characteristic parameter for the communications device; using the measured characteristic parameter and the mapping to determine a phase offset for the communications device; and using the determined phase offset to compensate for the phase offset caused by the matching network and antenna of the communications device. The present invention also provides for a method and system for measuring a phase offset caused by a matching network and antenna of a communications device.
12 Citations
20 Claims
-
1. A method for compensating phase offset caused by a matching network and antenna of a communications device, the method comprising:
-
generating a mapping that correlates phase offset with a characteristic parameter; measuring the characteristic parameter for the communications device; using the measured characteristic parameter and the mapping to determine a phase offset for the communications device; and using the determined phase offset to compensate for the phase offset caused by the matching network and antenna of the communications device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for measuring a phase offset caused by a matching network and antenna of a communications device, the method comprising:
-
transmitting a signal from the communications device to a reader device or a counterpart communications device; determining a measured characteristic parameter for the signal; using the measured characteristic parameter to determine the phase offset caused by the matching network and antenna. - View Dependent Claims (14, 15, 16, 17)
-
-
18. A method for measuring a phase offset caused by a matching network and antenna of a communications device, the method comprising:
-
receiving, by the communications device, a signal from a reader device; determining a measured characteristic parameter for the signal; using the measured characteristic parameter to determine the phase offset caused by the matching network and antenna. - View Dependent Claims (19, 20)
-
Specification