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Us Patents
Spectrally Efficient And High Capacity Acknowledgement Radio Paging System
View pageUS Patent:
56258801, Apr 29, 1997
Filed:
Aug 1, 1994
Appl. No.:
8/283470
Inventors:
Marc H. Goldburg - Redwood City CA
Richard H. Roy - Cupertino CA
Martin Cooper - Del Mar CA
Arlene J. Harris - Del Mar CA
Richard H. Roy - Cupertino CA
Martin Cooper - Del Mar CA
Arlene J. Harris - Del Mar CA
Assignee:
Arraycomm, Incorporated - Santa Clara CA
International Classification:
H04B 700
H04Q 302
H04Q 302
US Classification:
455 381
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.