Smartphone proximity card emulation
First Claim
Patent Images
1. A portable computing device, comprising:
- an antenna;
storage that stores an identification number;
a processor configured to control modulation of the identification number onto a carrier signal received by the antenna from a proximity card reader device to enable the portable computing device to emulate a proximity card; and
a carrier detection module configured to;
determine that a received signal is a wireless signal transmitted by a wireless charger in response to a determination that the received signal has a measured amplitude greater than a predetermined threshold value; and
determine that the received signal is the carrier signal in response to a determination that the received signal has a measured amplitude that is less than the predetermined threshold value.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods, systems, and computer program products are provided that enable a portable computing device to emulate a proximity card. A portable computing device is provided that includes an antenna, storage that stores an identification number, and a processor. The processor is configured to control modulation of the identification number onto a carrier signal received by the antenna from a proximity card reader device. In this manner, an applicable function may be enabled, and the portable computing device emulates a proximity card. The antenna may be specific to proximity card emulation, or may be shared with other portable computing device functions, such as wireless charging.
10 Citations
20 Claims
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1. A portable computing device, comprising:
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an antenna; storage that stores an identification number; a processor configured to control modulation of the identification number onto a carrier signal received by the antenna from a proximity card reader device to enable the portable computing device to emulate a proximity card; and a carrier detection module configured to; determine that a received signal is a wireless signal transmitted by a wireless charger in response to a determination that the received signal has a measured amplitude greater than a predetermined threshold value; and determine that the received signal is the carrier signal in response to a determination that the received signal has a measured amplitude that is less than the predetermined threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method in a portable computing device, comprising:
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determining whether a received wireless signal is transmitted by a wireless charger or is a carrier signal received from a proximity card reader device by; measuring an amplitude of the wireless signal, determining the wireless signal to be the carrier signal received from the proximity card reader device and causing the portable computing device to enter a first mode if the measured amplitude is less than the predetermined threshold value, and determining the wireless signal to be transmitted by the wireless charger and causing the portable computing device to enter a second mode if the measured amplitude is greater than a predetermined threshold value; in the first mode, receiving the carrier signal transmitted by the proximity card reader device at an antenna of the portable computing device, accessing an identification number stored in storage of the portable computing device, and modulating the identification number onto the carrier signal to enable the portable computing device to emulate a proximity card; and in the second mode, receiving a wireless charging signal at the antenna from a battery charger to charge a rechargeable battery. - View Dependent Claims (13, 14, 15, 16)
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17. A computer readable storage medium having computer program instructions stored in the computer readable storage medium that enable a processor to perform a method in a portable computing device, the method comprising:
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determining whether a received wireless signal is transmitted by a wireless charger or is a carrier signal received from a proximity card reader device by; measuring an amplitude of the wireless signal, determining the wireless signal to be the carrier signal received from the proximity card reader device and causing the portable computing device enter a first mode if the measured amplitude is less than the predetermined threshold value, and determining the wireless signal to be transmitted by the wireless charger and causing the portable computing device to enter a second mode if the measured amplitude is greater than a predetermined threshold value; in the first mode, accessing an identification number stored in storage of the portable computing device, receiving an indication of the carrier signal received at the antenna from the proximity card reader device, and providing the identification number to a modulation circuit according to predetermined timing to modulate the identification number onto the carrier signal by the antenna to enable the portable computing device to emulate a proximity card; and in the second mode, receiving a wireless charging signal at the antenna from a battery charger to charge a rechargeable battery of the portable computing device. - View Dependent Claims (18, 19, 20)
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Specification