Invention Grant
US08125854B2 Satellite signal reception device, timekeeping device, and satellite signal reception method 有权
卫星信号接收装置,计时装置和卫星信号接收方法

  • Patent Title: Satellite signal reception device, timekeeping device, and satellite signal reception method
  • Patent Title (中): 卫星信号接收装置,计时装置和卫星信号接收方法
  • Application No.: US12569665
    Application Date: 2009-09-29
  • Publication No.: US08125854B2
    Publication Date: 2012-02-28
  • Inventor: Teruhiko Fujisawa
  • Applicant: Teruhiko Fujisawa
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Priority: JP2008-262633 20081009
  • Main IPC: G04B47/00
  • IPC: G04B47/00 G01S19/24
Satellite signal reception device, timekeeping device, and satellite signal reception method
Abstract:
A satellite signal reception device according to an aspect of the invention comprises a reception operation unit that executes a reception operation process to receive a satellite signal transmitted from a positioning information satellite and generates positioning information from the satellite signal. The satellite signal has precise and coarse information orbit periods containing precise and coarse orbit information respectively for the positioning information satellite. The reception operation unit executes the reception operation process in the precise orbit information period, uses the coarse orbit information period as a suspended reception period, and pauses at least a part of the reception operation process in the suspended reception period.
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