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:
Apr. 29, 1997
Filed:
Aug. 01, 1994
Applicant:
Inventors:
Marc H Goldburg, Redwood City, CA (US);
Richard H Roy, III, Cupertino, CA (US);
Martin Cooper, Del Mar, CA (US);
Arlene J Harris, Del Mar, CA (US);
Assignee:
Arraycomm, Incorporated, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04Q / ;
U.S. Cl.
CPC ...
455 381 ; 455 531 ; 455 511 ;
Abstract
An improved radio paging system providing automatic acknowledgment of message delivery, including a base station with spatially directive reception means and a pager capable of transmitting acknowledgment signals. The spatially directive reception means at the base station enhances the reception quality of the acknowledgment signals transmitted by the pager over that obtainable with conventional omnidirectional reception means, thereby compensating for the disparity in the base station and pager transmission powers.