Space identification system

Petri Kangas (Inventor), Jani Mantyjarvi (Inventor), Sami Sillanpaa (Inventor), Antti Takaluoma (Inventor), Kari Kangas (Inventor), Timo Tokkonen (Inventor), Sami Sillanpaeae (Inventor)

Research output: PatentPatent application


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.

Original languageEnglish
Patent numberUS2003013505 AA
IPCH04Q 7/ 38 A N
Priority date28/06/01
Filing date25/06/02
Publication statusPublished - 16 Jan 2003
MoE publication typeNot Eligible


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