Communication device, reader/writer device, communication system, and communication method
First Claim
1. A communication device comprising:
- a close-proximity communication unit configured to perform a low-speed close-proximity communication with an external reader/writer device;
a first communication unit configured to perform high-speed close-proximity communication with the reader/writer device, that is faster than the low-speed close-proximity communication;
a second communication unit configured to, in response to a negotiation request from the reader/writer device when disconnection of communication via the high-speed close-proximity communication is detected at the reader/writer device, negotiate for medium-range communication and perform the medium-range communication with the reader/writer device;
a power transmission unit configured to receive power transmitted from the reader/writer device by power transmission; and
a secondary battery configured to store the power received by the power transmission unit,in which the second communication unit is configured to, when communication via the high-speed close-proximity communication is disconnected, operate with the power stored in the secondary battery, andin which the medium-range communication corresponds to a communication mode that is different from that of the high-speed close-proximity communication and from that of the low-speed close-proximity communication, such that the communication device is configured to perform three different types of communication.
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Accused Products
Abstract
There is provided a communication device including a secure communication unit configured to perform secure communication with an external reader/writer device, the secure communication being secure close-proximity communication, a first communication unit configured to perform high-speed communication with the reader/writer device, the high-speed communication being close-proximity communication that is faster than the secure communication, a second communication unit configured to, when communication via the high-speed communication is disconnected, communicate with the reader/writer device with a communication mode that is different from a communication mode of the high-speed communication, a power transmission unit configured to receive power transmitted from the reader-writer device by power transmission, and a secondary battery configured to store the power received by the power transmission unit. The second communication unit may be configured to, when communication via the high-speed communication is disconnected, operate with the power stored in the secondary battery.
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Citations
10 Claims
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1. A communication device comprising:
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a close-proximity communication unit configured to perform a low-speed close-proximity communication with an external reader/writer device; a first communication unit configured to perform high-speed close-proximity communication with the reader/writer device, that is faster than the low-speed close-proximity communication; a second communication unit configured to, in response to a negotiation request from the reader/writer device when disconnection of communication via the high-speed close-proximity communication is detected at the reader/writer device, negotiate for medium-range communication and perform the medium-range communication with the reader/writer device; a power transmission unit configured to receive power transmitted from the reader/writer device by power transmission; and a secondary battery configured to store the power received by the power transmission unit, in which the second communication unit is configured to, when communication via the high-speed close-proximity communication is disconnected, operate with the power stored in the secondary battery, and in which the medium-range communication corresponds to a communication mode that is different from that of the high-speed close-proximity communication and from that of the low-speed close-proximity communication, such that the communication device is configured to perform three different types of communication. - View Dependent Claims (2, 3)
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4. A reader/writer device comprising:
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a close-proximity communication unit configured to perform a low-speed close-proximity communication with an external portable communication device; a first communication unit configured to perform high-speed close-proximity communication with the portable communication device, that is faster than the low-speed close-proximity communication; and a second communication unit configured to, when disconnection of communication via the high-speed communication is detected at the reader/writer device, negotiate for medium-range communication and perform the medium-range communication with the portable communication device, in which the medium-range communication corresponds to a communication mode that is different from that of the high-speed close-proximity communication and from that of the low-speed close-proximity communication, such that the reader/writer is configured to perform three different types of communication. - View Dependent Claims (5, 6)
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7. A communication system comprising:
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a portable communication device having (i) a close-proximity communication unit configured to perform a low-speed close-proximity communication with an external reader/writer device; (ii) a first communication unit configured to perform high-speed close-proximity communication with the reader/writer device, that is faster than the low-speed close-proximity communication; and (iii) a second communication unit configured to, in response to a negotiation request from the reader/writer device when disconnection of communication via the high-speed close-proximity communication is detected at the reader/writer device, negotiate for medium-range communication and perform the medium-range communication with the reader/writer device, in which the medium-range communication corresponds to a communication mode that is different from that of the high-speed close-proximity communication and from that of the low-speed close-proximity communication, such that the portable communication device is configured to perform three different types of communication; and the reader/writer device configured to communicate with the portable communication device using one of the low-speed close-proximity communication, the high-speed close-proximity communication, and the medium-range communication. - View Dependent Claims (8, 9)
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10. A communication method comprising the steps of:
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causing a portable communication device and a reader/writer device to perform low-speed close-proximity communication; causing the portable communication device and the reader/writer device to perform high-speed close-proximity communication that is faster than the low-speed close-proximity communication; and causing the portable communication device and the reader/writer device to, when disconnection of communication via the high-speed close-proximity communication is detected, negotiate for medium-range communication and perform the medium-range communication, in which the medium-range communication corresponds to a communication mode that is different from that of the high-speed close-proximity communication and from that of the low-speed close-proximity communication, such that the portable communication device and the reader/writer are caused to perform three different types of communication.
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Specification