公开(公告)号：US20020012290A1

公开(公告)日：2002-01-31

申请号：US09819648

申请日：2001-03-29

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yuuichi Shinagawa

IPC分类号： G04B019/22

CPC分类号： G04G21/04 ,  G04G9/0076 ,  G04R20/02

摘要： A GPS reception section receives radio signals from a plurality of positioning satellites, and finds a latitude and a longitude of the device in which the GPS reception section is included, on the basis of information contained in the radio signals. The GPS reception section sends the information on the latitude and longitude to a calculation section as position information, extracts GMT time information and date information from the received radio signals, and outputs the information to the calculator. The calculation section reads out, from the database section, the time difference information and summer time information associated with the position information provided from the GPS reception section. Based on the read-out information, the calculation section subjects the time information provided from the GPS reception section to predetermined arithmetic processes and calculates a local time. A display section displays the calculated local time.

摘要翻译： GPS接收部接收来自多个定位卫星的无线信号，并且根据包含在无线信号中的信息，求出包含GPS接收部的装置的纬度和经度。 GPS接收部将纬度和经度信息作为位置信息发送到计算部，从接收到的无线信号中提取GMT时间信息和日期信息，并将该信息输出到计算器。 计算部分从数据库部分读出与从GPS接收部分提供的位置信息相关联的时差信息和夏令时信息。 基于读出信息，计算部分对GPS接收部分提供的时间信息进行预定的算术处理并计算本地时间。 显示部分显示计算出的本地时间。