Communications: directive radio wave systems and devices (e.g. – Directive – Including polarized signal communication transmitter or...
Patent
1999-03-24
2000-11-28
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including polarized signal communication transmitter or...
342365, H01Q 2106, H01Q 2124, H04B 710
Patent
active
061541737
ABSTRACT:
A method and apparatus for processing multipath reflection effects in timing systems is disclosed in which a determination is made of whether a received signal is a reflected signal. A detector provides from an input signal a pair of signals representative of whether the input signal contained right-hand circularly polarized and left-hand circularly polarized components. The representative signals are separately processed in synchronized logic circuits to determine relative power levels. The power levels are compared to determine the nature of the dominant polarization of the input signal.
REFERENCES:
patent: 5298908 (1994-03-01), Piele
patent: 5995044 (1999-11-01), Kunysz et al.
patent: 6006070 (1999-12-01), Wong
Lennen Gary R.
Smith Scott R.
Blum Theodore M.
Pelton, Esq. William E.
Trimble Navigation Limited
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