Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2002-02-15
2008-03-18
Perez-Gutierrez, Rafael (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S404200, C455S405000, C455S432100, C455S437000, C455S440000, C342S387000, C342S464000
Reexamination Certificate
active
07346345
ABSTRACT:
A telecommunications system comprises a first transmitter unit situated at a first, known location; a second transmitter unit situated at a second, unknown location; a first receiving unit at a third, known location arranged to receive signals from the first and second transmitter units; and a second receiving unit at a fourth, known location arranged to receive signals from the first and second transmitter units, wherein the said signals received by the first and second receiving units are usable to ascertain the location of the second transmitter unit.
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Moilanen Jani
Ruutu Ville
Spirito Maurizio
Teittinen Veli-Matti
Karikari Kwasi
Nokia Corporation
Perez-Gutierrez Rafael
Squire Sanders & Dempsey LLP
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