Distance measuring apparatus and distance measuring method

Communications: directive radio wave systems and devices (e.g. – Determining distance – Phase comparison

Reexamination Certificate

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C342S118000, C342S128000, C342S194000, C375S130000

Reexamination Certificate

active

07864105

ABSTRACT:
Distance measuring apparatus has a rough distance measuring circuit (18) using a time delay circuit and a precise distance measuring circuit (31) for measuring the orientation of the vector of a carrier wave to determine the distance, the sum of which is the final output. The rough distance measuring apparatus (18) has a long measurement span but low precision. The precise distance measuring apparatus (31) has a short measurement span but high precision. The combination provides distance measuring apparatus having a long measurement span and high resolution and capable of implementing precise measurement.

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Summarized Translation of the First JP Office Action, Japanese Office Action, JP Application No. 2007-272373, dated Aug. 18, 2010, a total of 5 pages.

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