Invention Grant
US07903005B2 Method of transforming geographic coordinate 有权
变换地理坐标的方法

  • Patent Title: Method of transforming geographic coordinate
  • Patent Title (中): 变换地理坐标的方法
  • Application No.: US12010924
    Application Date: 2008-01-31
  • Publication No.: US07903005B2
    Publication Date: 2011-03-08
  • Inventor: Naoki Ueda
  • Applicant: Naoki Ueda
  • Agency: Kubotera & Associates LLC
  • Priority: JP2005-223816 20050802
  • Main IPC: H03M7/12
  • IPC: H03M7/12
Method of transforming geographic coordinate
Abstract:
A method of transforming a geographic coordinate to a geographic location code includes the steps of: retrieving a latitude value and a longitude value of the geographic coordinate; quantizing the latitude value to a first integer value; quantizing the longitude value to a second integer value; converting the first integer value to a first code string, said first code string including a first digit representing a non-numeric character, a second digit representing a non-numeric character, and a third digit representing a numeric character; converting the second integer value to a second code string, said second code string including a fourth digit representing a non-numeric character, a fifth digit representing a non-numeric character, and a sixth digit representing a numeric character; and combining the first code string and the second code string to obtain the geographic location code having a fixed pattern of radix in a mixed radix notation system representation.
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