Communication apparatus
First Claim
1. A communication apparatus, comprising:
- an extraction unit configured to extract a reception key feature of a temporal change in received power in each frequency band contained in a received signal;
a storage unit configured to store, in correspondence with one another, a system name of at least one system which uses the frequency band, event information indicating that a communication apparatus belonging to the system starts or stops transmission, and at least one transmission key feature of a temporal waveform change shape of a transmission signal from a communication apparatus belonging to the system, at least one transmission key feature corresponding to the event information;
a determination unit configured to determine whether there is any transmission key feature matching the reception key feature, by comparing the reception key feature with the transmission key feature; and
a selection unit configured to select, when the determination unit determines that there is a matched transmission key feature, the event information and the system-name which correspond to the transmission key feature from the storage unit.
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Accused Products
Abstract
A communication apparatus, includes unit extracting a reception key feature of a temporal change in received power in each frequency band contained in a received signal, unit storing, in correspondence with one another, a system name of a system which uses the frequency band, event information indicating that a communication apparatus belonging to the system starts or stops transmission, and a transmission key feature of a temporal waveform change shape of a transmission signal from a communication apparatus belonging to the system, a transmission key feature corresponding to the event information, unit determining whether there is any transmission key feature matching the reception key feature, by comparing the reception key feature with the transmission key feature, and unit selecting, when the determination unit determines that there is a matched transmission key feature, the event information and the system name which correspond to the transmission key feature from the storage unit.
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Citations
17 Claims
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1. A communication apparatus, comprising:
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an extraction unit configured to extract a reception key feature of a temporal change in received power in each frequency band contained in a received signal; a storage unit configured to store, in correspondence with one another, a system name of at least one system which uses the frequency band, event information indicating that a communication apparatus belonging to the system starts or stops transmission, and at least one transmission key feature of a temporal waveform change shape of a transmission signal from a communication apparatus belonging to the system, at least one transmission key feature corresponding to the event information; a determination unit configured to determine whether there is any transmission key feature matching the reception key feature, by comparing the reception key feature with the transmission key feature; and a selection unit configured to select, when the determination unit determines that there is a matched transmission key feature, the event information and the system-name which correspond to the transmission key feature from the storage unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification