COEXISTENCE BETWEEN NFC AND WCT
First Claim
1. A first wireless communications device having a processor, a memory, and a near field communication (NFC) radio, the first device adapted totransmit an NFC poll signal at predetermined intervals;
- andperform, after each poll signal;
listening for an NFC response from a second wireless communication device;
executing an NFC data exchange with the second device if the response is received;
transmitting a charging signal; and
stopping, the transmitting of the charging signal before another NFC poll signal is scheduled to occur;
wherein the NFC data exchange and the charging signal do not overlap in time.
2 Assignments
0 Petitions
Accused Products
Abstract
Two devices containing NFC radios may use some of the NFC components to permit one device to wirelessly charge a battery in the other device. Time sharing between the communication and charging, functions may allow the two devices to use the same frequency for both functions, without the charging, function causing interference in the communication function. One device may periodically transmit polls, with both a data exchange communication period and a charging period occurring between two successive polls. In some embodiments, a data exchange period using the NFC radios and a charging period using the charging circuitry do not overlap in time.
27 Citations
30 Claims
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1. A first wireless communications device having a processor, a memory, and a near field communication (NFC) radio, the first device adapted to
transmit an NFC poll signal at predetermined intervals; - and
perform, after each poll signal; listening for an NFC response from a second wireless communication device; executing an NFC data exchange with the second device if the response is received; transmitting a charging signal; and stopping, the transmitting of the charging signal before another NFC poll signal is scheduled to occur; wherein the NFC data exchange and the charging signal do not overlap in time. - View Dependent Claims (2, 3, 4, 5)
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6. A method of wireless communication by a first wireless device, comprising:
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transmitting an NFC poll signal at predetermined intervals; and performing after each poll signal; listening;
for an NFC response from a second wireless communication device;executing an NFC data exchange with the second device if the response is received; transmitting a charging signal; and stopping the transmitting of the charging signal before another NFC poll signal is scheduled to occur; wherein the NFC data exchange and the charging signal do not overlap in time. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A computer-readable non-transitory storage medium that contains instructions, which when executed by one or more processors result in performing operations comprising:
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transmitting an NFC poll signal from a first device at predetermined intervals; and performing, after each poll signal; listening for an NFC response from a second wireless communication device; executing an NFC data exchange with the second device if the response is received; transmitting a charging signal; and stopping the transmitting of the charging signal before another NFC poll signal is scheduled to occur; wherein the NFC data exchange and the charging, signal do not overlap in time. - View Dependent Claims (13, 14, 15, 16)
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17. A first wireless communication device having a processor, a memory, and a near Field communication (NFC) radio, the first device adapted to:
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perform an NFC data exchange with a second wireless communication device; and receive a charging signal from the second device; wherein the data exchange and the charging signal occur between two successive polls from the second device; wherein the data exchange and the charging signal do not overlap in time. - View Dependent Claims (18, 19, 20, 21)
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22. A method of communicating wirelessly by a first device, comprising:
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performing an NFC data exchange with a second wireless communication device; and receiving a charging signal from the second wireless communication device; wherein the data exchange and the charging signal occur between two successive polls from the second wireless communication device; wherein the data exchange and the charging signal do not overlap in time. - View Dependent Claims (23, 24, 25, 26)
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27. A computer-readable non-transitory storage medium that contains instructions, which when executed by one or more processors result in performing operations comprising:
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performing an NFC data exchange with a wireless communication device; and receiving a charging signal from the wireless communication device; wherein the data exchange and the charging signal occur between two successive polls from the wireless communication device; wherein the data exchange and the charging signal do not overlap in time. - View Dependent Claims (28, 29, 30)
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Specification