System and method for facilitating avoidance of wireless charging cross connection
First Claim
1. A method of communication between a chargeable device and a wireless charger, the method comprising:
- detecting an impedance change in at least one charging region of a wireless charging field generated by the wireless charger, the impedance change caused by introducing the chargeable device to the wireless charging field;
determining the detected impedance change has a predetermined attribute indicative of one or more chargeable devices entering the wireless charging field of the wireless charger;
detecting a communication signal from the chargeable device during a first predetermined period of time relative to detecting the impedance change having the predetermined attribute; and
accepting the communication signal based on the communication signal being detected during the first predetermined period of time relative to detecting the impedance change.
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Accused Products
Abstract
A system and method for charging a chargeable device is provided. The system can include a wireless charger including a wireless power antenna and a wireless power transmitter coupled to the wireless power antenna and configured to generate a wireless charging field in at least one charging region. The wireless charging field includes a plurality of power signals. The wireless charger further includes a communication antenna and a transceiver coupled to the communication antenna and configured to communicate with the chargeable device via the communication antenna. The wireless charger further includes a controller configured to facilitate avoidance of cross connection of the chargeable device with the wireless charger and at least one other wireless charger in which the chargeable device receives power from the wireless power transmitter of the wireless charger while communicating with at least one other wireless charger. The system can include a chargeable device including a controller configured to generate a load pulse configured to be received by the wireless charger.
40 Citations
11 Claims
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1. A method of communication between a chargeable device and a wireless charger, the method comprising:
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detecting an impedance change in at least one charging region of a wireless charging field generated by the wireless charger, the impedance change caused by introducing the chargeable device to the wireless charging field; determining the detected impedance change has a predetermined attribute indicative of one or more chargeable devices entering the wireless charging field of the wireless charger; detecting a communication signal from the chargeable device during a first predetermined period of time relative to detecting the impedance change having the predetermined attribute; and accepting the communication signal based on the communication signal being detected during the first predetermined period of time relative to detecting the impedance change. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification