Wireless load modulation
First Claim
Patent Images
1. A wireless power transmitting unit, comprising:
- a resonator to periodically transmit a short beacon having a first time period;
circuitry coupled to the resonator and configured to;
detect a load change in the resonator when transmitting the short beacon; and
cause the resonator to transmit a long beacon subsequent to said transmitting the short beacon if said load change is detected, the long beacon having a second time period longer than the first time period.
0 Assignments
0 Petitions
Accused Products
Abstract
Techniques of load modulation are described herein. A wireless power transmitting unit may include a resonator to periodically transmit a short beacon having a first time period. The wireless power transmitting unit also includes circuitry coupled to the resonator. The circuitry is configured to detect a load change in the resonator when transmitting the short beacon and cause the resonator to transmit a long beacon subsequent to said transmitting the short beacon if said load change is detected. The long beacon has a second time period longer than the first time period.
-
Citations
14 Claims
-
1. A wireless power transmitting unit, comprising:
-
a resonator to periodically transmit a short beacon having a first time period; circuitry coupled to the resonator and configured to; detect a load change in the resonator when transmitting the short beacon; and cause the resonator to transmit a long beacon subsequent to said transmitting the short beacon if said load change is detected, the long beacon having a second time period longer than the first time period. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A wireless power receiving unit, comprising
a resonator to: -
periodically receive short beacons having a first time period; and receive a long beacon, subsequent to receiving at least one of the short beacons, if the power receiving unit is placed into a charging area of a wireless power transmitting unit, the long beacon having a second time period longer than the first time period. - View Dependent Claims (7, 8)
-
-
9. A first device for wirelessly charging a second device, comprising:
-
means to periodically transmit, from a resonator, a series of short beacons having a first time period; means to detect a load change in the resonator during at least one of the short beacons; and means to transmit a long beacon from the resonator subsequent to said at least one of the short beacons, if said load change is detected, the long beacon having a second time period longer than the first time period. - View Dependent Claims (10, 11, 12)
-
-
13. A wireless power receiving unit for being wirelessly charged by a wireless power transmitting unit, comprising
means to receive a series of short beacons having a first time period; means to receive a long beacon, subsequent to said receiving at least one of the short beacons, if the power receiving unit is placed into a charging area of a wireless power transmitting unit, the long beacon having a second time period longer than the first time period. - View Dependent Claims (14)
Specification