COMMUNICATION SYSTEM, COMMUNICATION APPARATUS AND COMMUNICATION METHOD AS WELL AS PROGRAM
First Claim
1. A communication apparatus comprising:
- a carrier wave generator configured to generate a first electromagnetic wave using an antenna;
a modulator configured to modulate the first electromagnetic wave for transmitting a first message to an external communication device;
a load modulator configured to modulate a second electromagnetic wave generated by the external communication device for transmitting a second message to the external communication device; and
a controller configured to cause the communication apparatus to;
transmit the first message when the second electromagnetic wave is not detected and,transmit the second message when the second electromagnetic wave is detected,wherein the first message is a first inquiry for identification information of the external communication device,wherein the communication apparatus is configured to receive a first response in response to the first inquiry.
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Accused Products
Abstract
A communication system, a communication apparatus, a communication method, and a program for acquiring the advantage of a plurality of communication protocols is provided. A random number and a first communication information including first identification information of a communication apparatus is sent to another communication apparatus by using near field communication. Second communication information is received by the communication apparatus from the other communication apparatus by using near field communication. The second communication information includes second identification information of the other communication apparatus necessary to a second communication. The second communication is performed between the communication apparatus and the other communication apparatus by using the second communication information received by using the near field communication.
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Citations
20 Claims
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1. A communication apparatus comprising:
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a carrier wave generator configured to generate a first electromagnetic wave using an antenna; a modulator configured to modulate the first electromagnetic wave for transmitting a first message to an external communication device; a load modulator configured to modulate a second electromagnetic wave generated by the external communication device for transmitting a second message to the external communication device; and a controller configured to cause the communication apparatus to; transmit the first message when the second electromagnetic wave is not detected and, transmit the second message when the second electromagnetic wave is detected, wherein the first message is a first inquiry for identification information of the external communication device, wherein the communication apparatus is configured to receive a first response in response to the first inquiry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A communication method for a communication apparatus, the communication method comprising:
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generating a first electromagnetic wave by a carrier wave generator using an antenna; modulating the first electromagnetic wave for transmitting a first message to an external communication device by a modulator, wherein the first message is a first inquiry for identification information of the external communication device; modulating, by a load modulator, a second electromagnetic wave generated by the external communication device for transmitting a second message to the external communication device; transmitting the first message when the second electromagnetic wave is not detected; transmitting the second message when the second electromagnetic wave is detected; and receiving a first response in response to the first inquiry. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification