Title:
RECONSTRUCTABLE SATELLITE AND BACKUP CAPACITY FOR ANTENNA COVERAGE COMMUNICATION
Document Type and Number:
Japanese Patent JP3453094
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make it possible to reconstruct a satellite in order to simulate another satellite in a satellite group by combining a flexible antenna system, a variable down link conversion system and selectable filter technology.
SOLUTION: In a section I, input signals are received by eight antenna ports 30. A network 34 combines beams received by a required combination in order to obtain flexible antenna coverage. A down converter 36 can process various frequency bands and execute any of six conversion required by six satellite squadrons. A section II receives a set of signals from the section I and divides these signals into channeled parts by using input multiplexer filters. Even when a certain satellite is failed in a satellite group, the failed satellite can be backed up and the reconstructable satellite can provide backup coverage without interrupting service.
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Inventors:
James Dee Thompson
Parsa salathy lamanu jam
Cynthia A. Dixon
Debbie H. Furborn
David Earl Goldberg
Stephen F. Shichi
Romash Jay Shah
John Earl Dunwoody
Parsa salathy lamanu jam
Cynthia A. Dixon
Debbie H. Furborn
David Earl Goldberg
Stephen F. Shichi
Romash Jay Shah
John Earl Dunwoody
Application Number:
JP36752199A
Publication Date:
October 06, 2003
Filing Date:
December 24, 1999
Export Citation:
Assignee:
Hughes Electronics Corporation
International Classes:
H03J5/02; H04B1/04; H04B1/74; H04B7/185; H04B7/195; H04B7/204; H04B7/26; (IPC1-7): H04B7/195; H03J5/02; H04B1/04; H04B1/74; H04B7/26
Other References:
【文献】米国特許5813634(US,A)
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)