Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-10-25
2005-10-25
Nguyen, Chau (Department: 2663)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S347000
Reexamination Certificate
active
06958987
ABSTRACT:
A system and method employs standard DECT hardware adapted for use in the Industrial-Scientific-Medical (ISM) Spectrum wherein a Frequency Hopping Spread Spectrum (FHSS), multiple carrier, time-division-multiple-access (TDMA), time-division-duplex (TDD) technique provides wireless communications over the ISM Spectrum while employing standard DECT hardware. A baseband processor provides slot and frame timing to a RF sub-module wherein the preferred, although not exclusive number of carrier frequencies is programmed to seventy-five ranging between 2401.122 MHz to 2479.813 MHz and spaced 1.063 MHz apart and wherein each of the seventy-five channels supports a ten-millisecond frame preferably, although not exclusively, comprised of sixteen time slots.
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Feekes Dannie G.
Herring Christopher M.
Silva Sousa Alexandre Jose C.
Hyun Soon D.
Toler Larson & Abel, LLP
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