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:
May. 18, 1993
Filed:
May. 31, 1991
Applicant:
Inventor:
Craig Miller, Paoli, PA (US);
Assignee:
International Mobile Machines Corporation, King of Prussia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04Q / ;
U.S. Cl.
CPC ...
455 331 ; 379 59 ; 455 333 ; 455 561 ;
Abstract
An RF communications system for providing wireless telecommunication service to sixteen contiguous geographic sectors or cells. The system includes an antenna array having a plurality of antenna sites located at the corners of contiguous geographic sectors. The central antenna site has four directional antennas. The four corner towers each have three directional antennas. Each directional antenna illuminates an entire sector. The location of the antenna sites and the allocation of a frequency group for each sector minimizes RF interference.