Invention Grant
US08009091B2 Method and apparatus for reducing time to first fix (TTFF) of GNSS receiver without accurate time information
有权
降低GNSS接收机首次固定时间（TTFF）的方法和装置，无需准确的时间信息
- Patent Title: Method and apparatus for reducing time to first fix (TTFF) of GNSS receiver without accurate time information
- Patent Title (中): 降低GNSS接收机首次固定时间（TTFF）的方法和装置，无需准确的时间信息
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Application No.: US12328753Application Date: 2008-12-04
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Publication No.: US08009091B2Publication Date: 2011-08-30
- Inventor: Chien-Liang Tsai
- Applicant: Chien-Liang Tsai
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hu; Scott Margo
- Main IPC: G01S19/25
- IPC: G01S19/25 ; G01S19/09
Abstract:
A method for reducing Time To First Fix (TTFF) of a Global Navigation Satellite System (GNSS) receiver includes storing ephemeris information into a non-volatile memory, and utilizing the ephemeris information to determine a GNSS time, in order to reduce the TTFF. An apparatus for reducing TTFF of a GNSS receiver includes a storage module and a processing module coupled to the storage module. The storage module is utilized for storing data, wherein the stored data in the storage module is non-volatile. The processing module stores ephemeris information into the storage module and utilizes the ephemeris information to determine a GNSS time, in order to reduce the TTFF.
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