Time acquisition apparatus and radio wave clock

Details Time acquisition apparatus and radio wave clock Time acquisition apparatus and radio wave clock

2009-03-31

2011-12-06

Lau, Tung S (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Time duration or rate

Reexamination Certificate

active

08073651

ABSTRACT:
A received waveform memory22stores one (1) frame of received waveform data acquired by sampling a signal including a time code with a predetermined sampling period, where each sample is represented by a plurality of bits. Correlation value calculating sections24-26compare the received waveform data with one (1) frame of first prediction code data corresponding to a code of a position marker or a marker, where each sample is represented by a plurality of bits, one (1) frame of second prediction code data corresponding to a code “0”, and one (1) frame of third prediction code data corresponding to a code “1” respectively. Correlation value comparing section27compares the first, second and third correlation values with one another to specify the prediction code data whose correlation is largest to output the code data.

REFERENCES:
patent: 2005/0195690 (2005-09-01), Kondo
patent: 2011/0075522 (2011-03-01), Abe et al.

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