Local area positioning system slave receiver

Communications: electrical – Condition responsive indicating system – With particular coupling link

Reexamination Certificate

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Details

C455S311000, C455S313000

Reexamination Certificate

active

06998979

ABSTRACT:
The local area positioning system (LAPS) slave receiver is an extremely sensitive, ultra low noise, high speed up-converting microwave receiver operating in the 900 Mhz to 1.6 Ghz frequency range and is designed for use with a positioning system. The receiver, which may include fiber optic links, allows detection and switching of high speed short duration pulses used to control an associated highly stable 1.0 Ghz start/stop event counter. The receiver, in combination with the counter, is capable of measuring RF propagation distances with an accuracy of 12 inches.

REFERENCES:
patent: 5802463 (1998-09-01), Zuckerman
patent: 6366622 (2002-04-01), Brown et al.
patent: 6385268 (2002-05-01), Fleming et al.
patent: 6812824 (2004-11-01), Goldinger et al.

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