Methods and devices for detecting a hand
First Claim
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1. A method for detecting a hand in proximity to an electronic device, the electronic device including a near field communications (NFC) antenna and an infrared sensor that emits infrared light, the method comprising:
- monitoring an induced voltage at the NFC antenna, the NFC antenna provided in an NFC subsystem configured to communicate wirelessly according to an NFC protocol, the NFC protocol operating with a working distance of 4 cm or less;
determining whether the hand is in proximity to the electronic device based on the induced voltage;
receiving a reflection of the emitted infrared light;
determining whether a head is in proximity to the electronic device based on the reflection; and
selecting a power output state from a plurality of possible power output states provided by the electronic device, the selection based on both the determination of whether the head is in proximity to the electronic device and the determination of whether the hand is in proximity to the electronic device.
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Abstract
Methods and devices for detecting a hand in proximity to an electronic device are described. The electronic device includes a near field communications (NFC) antenna. In one aspect, the method includes: monitoring an induced voltage at the NFC antenna; and determining whether a hand is in proximity to the electronic device based on the induced voltage.
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Citations
19 Claims
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1. A method for detecting a hand in proximity to an electronic device, the electronic device including a near field communications (NFC) antenna and an infrared sensor that emits infrared light, the method comprising:
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monitoring an induced voltage at the NFC antenna, the NFC antenna provided in an NFC subsystem configured to communicate wirelessly according to an NFC protocol, the NFC protocol operating with a working distance of 4 cm or less; determining whether the hand is in proximity to the electronic device based on the induced voltage; receiving a reflection of the emitted infrared light; determining whether a head is in proximity to the electronic device based on the reflection; and selecting a power output state from a plurality of possible power output states provided by the electronic device, the selection based on both the determination of whether the head is in proximity to the electronic device and the determination of whether the hand is in proximity to the electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electronic device comprising:
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a memory; a near field communications (NFC) subsystem including an NFC antenna, the NFC subsystem configured for communicating wirelessly according to an NFC protocol, the NFC protocol operating with a working distance of 4 cm or less; an infrared sensor that emits infrared light; a processor coupled with the memory and the NFC antenna, the processor being configured to detect a hand in proximity to the electronic device by; monitoring an induced voltage at the NFC antenna; and determining that the hand is in proximity to the electronic device based on the induced voltage, the processor further configured to; receive a signal indicating a reflection of the emitted infrared light; determine whether a head is in proximity to the electronic device based on the reflection; and select a power output state from a plurality of possible power output states provided by the electronic device, the selection based on both the determination of whether the head is in proximity to the electronic device and the determination of whether the hand is in proximity to the electronic device. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A non-transitory computer-readable storage medium having stored thereon computer executable instructions for detecting a hand in proximity to an electronic device, the computer executable instructions including instructions for:
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monitoring an induced voltage at a near field communications (NFC) antenna, the NFC antenna provided in an NFC subsystem configured to communicate wirelessly according to an NFC protocol, the NFC protocol operating with a working distance of 4 cm or less; and determining that the hand is in proximity to the electronic device based on the induced voltage, receiving a signal indicating a reflection of the emitted infrared light emitted by an infrared sensor; determining whether a head is in proximity to the electronic device based on the reflection; selecting a power output state from a plurality of possible power output states provided by the electronic device, the selection based on both the determination of whether the head is in proximity to the electronic device and the determination of whether the hand is in proximity to the electronic device.
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Specification