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;
a modulator configured to modulate the first electromagnetic wave for transmitting a first message to a first communication device;
a load modulator configured to modulate a second electromagnetic wave generated by the first communication device for transmitting a second message to the first communication device;
a controller configured to control 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.
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Accused Products
Abstract
A communication apparatus is provided and including a carrier wave generator configured to generate a first electromagnetic wave; a modulator configured to modulate the first electromagnetic wave for transmitting a first message to a first communication device; a load modulator configured to modulate a second electromagnetic wave generated by the first communication device for transmitting a second message to the first communication device; a controller configured to control 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. A communication method is also provided.
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Citations
18 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; a modulator configured to modulate the first electromagnetic wave for transmitting a first message to a first communication device; a load modulator configured to modulate a second electromagnetic wave generated by the first communication device for transmitting a second message to the first communication device; a controller configured to control 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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; modulating the first electromagnetic wave for transmitting a first message to a first communication device by a modulator; modulating, by a load modulator, a second electromagnetic wave generated by the first communication device for transmitting a second message to the first communication device; transmitting the first message when the second electromagnetic wave is not detected; and transmitting the second message when the second electromagnetic wave is detected. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification