Quadrature detection method, quadrature detection device and...

Details Quadrature detection method, quadrature detection device and... Quadrature detection method, quadrature detection device and...

2006-03-30

2010-11-23

Miska, Vit W (Department: 2833)

Horology: time measuring systems or devices

Plural timepiece system or system device

With wireless synchronization

C370S206000, C375S326000, C455S208000

Reexamination Certificate

active

07839725

ABSTRACT:
A radio wave timepiece A and a quadrature detection device for executing a quadrature detecting method are disclosed including a receiving antenna14for receiving a carrier wave of a long wave standard radio wave on which time information is multiplexed, a quadrature detection circuit18for performing quadrature detection of the carrier wave in response to a reference clock CK1, commonly used for timekeeping by a time counter8, to obtain an in-phase component I and a quadrature component Q of the carrier wave for obtaining an amplitude AN,mof the carrier wave, and a time correction means22, 24, 26for obtaining time information depending on the amplitude of the carrier wave from the quadrature detection circuit18. The time counter8is responsive to time information delivered from the time correction means to correct current time.

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Office Action dated May 14, 2009 from the German Patent Office in the corresponding DE Application No. 10 2006 014 858.4-31 (and English Translation).

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