WIRELESS LOAD MODULATION
First Claim
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1. A wireless power receiving unit, comprising:
- a receiving coil to receive a short beacon having a first time period, and a long beacon having a second time period longer than the first time period;
a controller to initiate load modulation during the long beacon at the receiving coil; and
wherein the controller is to continue to perform the load modulation during the long beacon until sufficient power is received at the wireless power receiving unit to initiate a wireless data transmission during the long beacon.
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Abstract
Techniques of load modulation are described herein. A wireless power receiving unit may include a receiving coil to receive a short beacon having a first time period, and a long beacon having a second time period longer than the first time period. A controller of the wireless power receiving unit is to initiate load modulation at the receiving coil during the long beacon. The controller is configured to continue to perform the load modulation during the long beacon until sufficient power is received at the wireless power receiving unit to initiate a wireless data transmission during the long beacon.
46 Citations
25 Claims
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1. A wireless power receiving unit, comprising:
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a receiving coil to receive a short beacon having a first time period, and a long beacon having a second time period longer than the first time period; a controller to initiate load modulation during the long beacon at the receiving coil; and wherein the controller is to continue to perform the load modulation during the long beacon until sufficient power is received at the wireless power receiving unit to initiate a wireless data transmission during the long beacon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of load modulation in a wireless component, comprising:
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receiving a short beacon having a first time period at a receiving coil from a transmitting coil; performing an initial load change at the receiving coil to indicate the presence of the receiving coil to the transmitting coil; receiving a long beacon having a second time period longer than the first time period in response to the load modulation at the receiving coil; and performing a load modulation during the long beacon until sufficient power is received at the wireless power receiving unit to initiate a wireless data transmission during the long beacon. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless power transmitting unit, comprising:
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a transmitting coil to transmit a short beacon having a first time period and a long beacon having a second time period relatively longer than the first time period; a controller having logic, at least partially comprising hardware logic, to; detect an initial load change at upon generating a short beacon indicating a presence of a receiving coil; issue a long beacon to the receiving coil in response to the initial load change; and issue the long beacon as long as a load modulation is detected. - View Dependent Claims (22, 23, 24, 25)
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Specification