Short distance wireless device charging system having a shared antenna
First Claim
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1. A charging system, comprising:
- a transmitter having a first antenna configured to transmit radio-frequency energy including (i) a first radio-frequency signal and (ii) a second radio-frequency signal; and
a first electronic device including (i) a second antenna, (ii) a first communication circuit operably connected to the second antenna, and (iii) a first power converter operably connected to the second antenna,wherein the second antenna is configured to receive the radio-frequency energy transmitted by the first antenna,wherein the first power converter is configured to receive the first radio-frequency signal from the second antenna and convert the first radio-frequency signal to usable power, andwherein the first communication circuit is configured to receive the second radio-frequency signal from the second antenna.
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Abstract
A wireless charging system includes a power receiving antenna that also functions as a communication antenna. The wireless charging system includes a transmitter having a first antenna configured to transmit radio-frequency energy and a first electronic device. The first electronic device includes a second antenna, a first communication circuit operably connected to the second antenna, and a first power converter operably connected to the second antenna. The second antenna is configured to receive the radio frequency energy transmitted by the first antenna.
29 Citations
18 Claims
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1. A charging system, comprising:
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a transmitter having a first antenna configured to transmit radio-frequency energy including (i) a first radio-frequency signal and (ii) a second radio-frequency signal; and a first electronic device including (i) a second antenna, (ii) a first communication circuit operably connected to the second antenna, and (iii) a first power converter operably connected to the second antenna, wherein the second antenna is configured to receive the radio-frequency energy transmitted by the first antenna, wherein the first power converter is configured to receive the first radio-frequency signal from the second antenna and convert the first radio-frequency signal to usable power, and wherein the first communication circuit is configured to receive the second radio-frequency signal from the second antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic device, comprising:
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a RF antenna; a communication circuit operably connected to the RF antenna; and a power converter operably connected to the RF antenna, wherein the RF antenna is configured to receive radio-frequency energy transmitted by a transmitting antenna, wherein the radio-frequency energy includes (i) a first radio-frequency signal and (ii) a second radio-frequency signal, wherein the power converter is configured to receive the first radio-frequency signal from the RF antenna and convert the first radio-frequency signal to usable power, and wherein the communication circuit is configured to receive the second radio-frequency signal from the RF antenna. - View Dependent Claims (12, 13, 14)
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15. A method of operating an electronic device comprising:
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transmitting a first radio-frequency signal with a first antenna connected to a power source; receiving the first radio-frequency signal with a second antenna of an electronic device; converting the received first radio-frequency signal to usable power with a power converter; and at least one of (i) receiving a second radio-frequency signal with the second antenna and transferring the received second radio-frequency signal to a communication circuit in the electronic device, and (ii) transmitting a communication signal received from the communication circuit with the second antenna. - View Dependent Claims (16, 17, 18)
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Specification