Space identification system

Details Space identification system Space identification system

2006-06-13

2006-06-13

Nguyen, Lee (Department: 2682)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S418000, C455S419000, C455S420000, C340S572100, C340S870030, C398S106000, C398S111000, C398S172000

Reexamination Certificate

active

07062280

ABSTRACT:
System and method for identifying various types of room facilities to find out and take into account space information. A tag of a space (S2) is included in the fluctuation of the intensity of the light emitted by a lamp (LF1) provided in the space in question. The receivers included in the system are arranged e.g. in commercial mobile stations (R1). These are provided with a light detector and with a DSP algorithm that analyses the signal given by said light detector. As a result of the analysis, for instance the mobile station is automatically switched off when entering the space in question. There is neither needed a separate transmitter nor separate energy supply arrangements to send the space tag, and the space tag signal can be detected throughout said space. As regards the mobile station, the space-specific operations can be performed automatically, so that the mobile station user does not need to bother, and his possible negligence does not prevent the precautions from being executed.

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Al-Kazily et al, “Automatic Service to Control Cell Phone”, Dec. 2000, Research Disclosure, 1 pg.

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