by detecting the radio signal frequency

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Patents Grantslast 30 patents

Information Patent Grant
Electronic timepiece and control method of electronic timepiece
- Patent number 10,466,655
- Issue date Nov 5, 2019
- Seiko Epson Corporation
- Kazumi Matsumoto
- G04 - HOROLOGY
Information Patent Grant
Frequency corrector and clocking apparatus using the same
- Patent number 8,201,991
- Issue date Jun 19, 2012
- Oki Semiconductor Co., Ltd.
- Shinichi Kouzuma
- G04 - HOROLOGY
Information Patent Grant
System for providing a calibrated clock and methods thereof
- Patent number 7,058,149
- Issue date Jun 6, 2006
- FREESCALE SEMICONDUCTOR, INC.
- John Pigott
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3564838
- Patent number 3,564,838
- Issue date Feb 23, 1971
- G04 - HOROLOGY