Time information obtaining apparatus and radio timepiece

Details Time information obtaining apparatus and radio timepiece Time information obtaining apparatus and radio timepiece

2011-04-19

2011-04-19

Luebke, Renee (Department: 2833)

Horology: time measuring systems or devices

Plural timepiece system or system device

With wireless synchronization

C368S046000

Reexamination Certificate

active

07929381

ABSTRACT:
A signal composing circuit12receives a signal including a time code from a receiving circuit10,and detects input waveform data of a unit time length, whose value at ach sampling point is given by a value expressed in plural bits. The input waveform data is accumulated. CPU13calculates a minimum position on a time axis, where the minimum value of the accumulated input waveform data is given and a maximum gradient position on the time axis, where a difference between values of the accumulated input waveform data at adjacent sampling points is maximum, and further calculates a leading position of a unit time length of the signal including the time code.

REFERENCES:
patent: 2003/0117901 (2003-06-01), Takada et al.
patent: 2005/0094495 (2005-05-01), Takada et al.
patent: 2005/0195690 (2005-09-01), Kondo
patent: 2006/0067166 (2006-03-01), Murata et al.
patent: 2008/0239879 (2008-10-01), Someya
patent: 2005-249632 (2005-09-01), None

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