Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-01-17
2006-01-17
Vo, Nguyen (Department: 2685)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456500, C455S456600, C455S565000
Reexamination Certificate
active
06987978
ABSTRACT:
The disclosed invention makes mobile terminals physically impossible to use in specific spaces without using radio waves of so high intensity as to affect medical devices and without requiring telephone companies that operate wireless communications systems (WCS) to take special measures. Cooperation of a telephone company on the implementation of making mobile terminals physically impossible to use in specific spaces makes mobile terminals provided by the telephone company easy to use. Pseudo signals of downlink pilot signal in WCS are emitted off the pilot timing in specific spaces. Uplink channel radio waves in cooperative telephone compannies' WCS are relayed and communication path is disconnected if the uplink channel radio waves are for communication of an attribute banned in the space. Communication path can be disconnected without increasing the intensity of radio waves so high. In cooperative telephone compannies' WCS, only the path of communication of an attribute banned in the space is disconnected.
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Kato Takeshi
Masuda Noboru
Yano Takashi
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Hitachi , Ltd.
Reed Smith LLP
Stein Julie E.
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