Invention Grant
US08437226B2 Timekeeping device and satellite signal reception method for a timekeeping device 有权
计时装置和卫星信号接收方法

  • 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.: US13346140
    Application Date: 2012-01-09
  • Publication No.: US08437226B2
    Publication 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
Timekeeping device and satellite signal reception method for a timekeeping device
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.
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