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.:
Date of Patent:
Nov. 01, 2005
Filed:
Nov. 30, 2001
Applicants:
Mitsuru Muramoto, Tokyo, JP;
Kanemi Sasaki, Tokyo, JP;
Inventors:
Mitsuru Muramoto, Tokyo, JP;
Kanemi Sasaki, Tokyo, JP;
Assignee:
Hitachi Kokusai Electric, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q007/20 ;
U.S. Cl.
CPC ...
Abstract
The cell expansion system and method maximize the use of communication signal resource such as frequencies and polarized waves in expanding base stations for wireless communication. The cell are divided into four equal sectors, and at least a pair of adjacent sectors of the adjacent cells shares a common signal for wirelessly communicating with each other.