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 6940530 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 06, 2005

Filed:

May. 20, 2003
Applicants:

Ying Chen, Beijing, CN;

Xiu Lan Yu, Beijing, CN;

Fang Yan Rao, Beijing, CN;

Inventors:

Ying Chen, Beijing, CN;

Xiu Lan Yu, Beijing, CN;

Fang Yan Rao, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G005/00 ;
U.S. Cl.
CPC ...
Abstract

Provides point label placement determining methods, apparatus and systems. A point label placement determining method and system are used in map browsing service based on session mode. In an example embodiment, initial label placement data in a scale is calculated by a static point label determining method. When a user requires a map browsing service, the requirement are met by using an incremental label placement method on the base of said initial label placement data. The incremental point label placement method dramatically reduces the cost for service process. Therefore, the simultaneous requirements of a large number of users can be met. The present invention is successfully used in location based service systems.


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