Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-06-01
2009-12-29
Afshar, Kamran (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S404100, C455S522000, C455S450000, C370S318000
Reexamination Certificate
active
07640014
ABSTRACT:
When emergency communication etc. is sent, it aims at preferentially dealing with the emergency communication etc. by a simple and effective method. It is a communication system in which a base station100and a mobile station200aestablish communication for emergency situation, in time of emergency, wherein the mobile station200aswitches an output adjustment from the normal mode to the emergency mode and sends the communication for emergency situation at the largest output possible. The base station100receives a strong radio wave from the mobile station200awhich sent the communication for emergency situation. The base station100continues to output suppression signals for suppressing signal intensity to the other mobile stations. The other mobile stations are suppressed by the near-far effect, and it becomes impossible for the base station100to receive communication except for the communication for emergency situation. Only the mobile station200awhich sent the communication for emergency situation establishes a channel to the base station100.After the establishment, the mobile station200awhich sent the communication for emergency situation performs communication according to the normal communication procedure.
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Kanada Naoki
Meguro Naritomo
Shiomi Kakuichi
Yamagishi Atsushi
Afshar Kamran
Birch & Stewart Kolasch & Birch, LLP
Electronic Navigation Research Institute
Mitsubishi Space Software Co., Ltd.
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