Methods of detecting RF interference in breath ethanol testing

Chemistry: analytical and immunological testing – Oxygen containing – Hydroxyl containing

Reexamination Certificate

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Details

C436S900000, C422S084000, C073S023300, C600S532000

Reexamination Certificate

active

07855081

ABSTRACT:
Interference detector and methods for detecting interference in a signal are described. More specifically, in one aspect, a method for detecting interference in a signal is provided. The method comprises determining whether the signal has at least one of a time and a frequency characteristic that is outside a predefined range, and determining that an interference event has been detected if the signal has at least one of such characteristics.

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International Search Report dated Jul. 27, 2006, Application No. PCT/US2004/30851, 7 Pages.
European Search Report mailed Feb. 18, 2010 re PCT/US2004/030851; 5 pages.

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