Bi-directional time slot estimator for wireless...

Multiplex communications – Communication over free space – Combining or distributing information via time channels

Reexamination Certificate

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Details

C370S458000, C370S503000, C375S354000

Reexamination Certificate

active

07092377

ABSTRACT:
A method of determining a time slot timing based upon an input sequence r(n) is disclosed. The method comprises using a frequency correction channel detector to determine a first time slot end time based upon the input sequence r(n). Then, the frequency correction channel detector is used to determine a second time slot end time based upon an order reversed input sequence r(n). A time slot midpoint is calculated as the average of the first time slot end time and second time slot end time. The time slot midpoint is then used to estimate the time slot timing.

REFERENCES:
patent: 5724657 (1998-03-01), Lin et al.
patent: 5761250 (1998-06-01), Lin
patent: 6333953 (2001-12-01), Bottomley et al.
patent: 6356608 (2002-03-01), Atarius
patent: 2003/0189978 (2003-10-01), Lin et al.

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