The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7973708 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 05, 2011

Filed:

Jan. 04, 2010
Applicants:

Hun Lee, Seoul, KR;

Jin Hee Han, Gyeonggi-do, KR;

Jeong Goo Lee, Seoul, KR;

NO Hyoung Lee, Seoul, KR;

Inventors:

Hun Lee, Seoul, KR;

Jin Hee Han, Gyeonggi-do, KR;

Jeong Goo Lee, Seoul, KR;

No Hyoung Lee, Seoul, KR;

Assignee:

Telace Inc., Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 19/05 (2010.01); G01S 19/10 (2010.01); G01S 19/25 (2010.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a global navigation satellite system (GNSS) based positioning system and tracking method using a data communication network. When a GNSS-based positioning device is connected to a data communication network, the positioning device transfers the GNSS digital data and supplementary information used for additional performance improvement to a location tracking server through the data communication network, the location tracking server calculates a position of the positioning device with improved receiver sensitivity based on plentiful computational resources available at the location tracking server. Thus, the positioning device may find its location of even in very poor signal condition. Further, the present invention provides a positioning system and method using a data communication network, which may achieve time synchronization when there is a need to extract not only position information but also absolute timing information.


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