Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Reexamination Certificate
2011-03-29
2011-03-29
Chang, Kent (Department: 2617)
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
C455S161100, C455S150100
Reexamination Certificate
active
07917110
ABSTRACT:
A cognitive radio system includes: a state detecting device that scans a frequency band allocated to another radio system than the cognitive radio system to detect a first use-state of the frequency band; a first server including a first gathering unit that receives first information relating to the first use-state and a second gathering unit; a second server that stores a second use-state of the frequency band allocated to the other radio system, the second server configured to provide second information relating to the second use-state to the second gathering unit; and a notifying unit that notifies a terminal device in the cognitive radio system of information of an available channel based on the first information and the second information.
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Horiguchi Tomoya
Nonin Katsuya
Sakata Ren
Tomioka Tazuko
Yoshida Hiroshi
Chang Kent
Eisner Ronald
Kabushiki Kaisha Toshiba
Kimble Intellectual Property Law, PLLC
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