Invention Grant
- Patent Title: Timekeeping device and satellite signal reception method for a timekeeping device
- Patent Title (中): 计时装置和卫星信号接收方法
-
Application No.: US13346140Application Date: 2012-01-09
-
Publication No.: US08437226B2Publication Date: 2013-05-07
- Inventor: Jun Matsuzaki
- Applicant: Jun Matsuzaki
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2007-327093 20071219; JP2008-014848 20080125
- Main IPC: G04C11/02
- IPC: G04C11/02 ; G01S19/32 ; G01S19/34

Abstract:
A timekeeping device has a reception unit that receives a satellite signal transmitted from a positioning information satellite, a time information generating unit that generates time information based on the received satellite signal, a time display unit that displays the time information, and a reception control unit that controls the reception unit. The reception control unit includes a signal condition detection unit that detects a signal condition of the received satellite signal, and a reception setting unit that sets the reception unit to a single satellite mode or a multi-satellite mode based on the detected signal condition.
Public/Granted literature
- US20120170425A1 Timekeeping Device and Satellite Signal Reception Method for a Timekeeping Device Public/Granted day:2012-07-05
Information query