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US Patent 7667830 Mixer-based time domain reflectometer and method

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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7667830
Date of Patent
February 23, 2010
Patent Application Number
11277239
Date Filed
March 23, 2006
Patent Primary Examiner
‌
Tarifur Chowdhury
Patent abstract

An apparatus to measure optical characteristics of a fiber optic transmission line or other optical medium may include a source to generate a bipolar pulse signal waveform. The apparatus may also include a mixer to mix the bipolar pulse signal waveform and an optical pulse and reflected signal waveform from the fiber optic transmission line or other optical medium to form a mixed product waveform, wherein the reflected signal is responsive to the optical pulse being transmitted into the fiber optic transmission line or optical medium.

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