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:
Aug. 01, 2006
Filed:
Apr. 09, 2001
Yasushi Yokosuka, Hitachinaka, JP;
Hideki Inoue, Hitachi, JP;
Toru Yamada, Yokohama, JP;
Takanori Yamasaki, Yokohama, JP;
Kimiya Yamaashi, Hitachi, JP;
Yasushi Yokosuka, Hitachinaka, JP;
Hideki Inoue, Hitachi, JP;
Toru Yamada, Yokohama, JP;
Takanori Yamasaki, Yokohama, JP;
Kimiya Yamaashi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An information-transmission system which uses non-geosynchronous artificial satellites, including a server-system and its client apparatuses, for performing communications or broadcast, the system comprises: a means for controlling changeover of a non-geosynchronous artificial satellite being used, to another satellite to be next used; wherein the server-system determines whether or not a satellite-changeover occurs during sending of an information packet to be sent toward a satellite being used, one of the non-geosynchronous artificial satellites; and if it is determined that a satellite-changeover occurs during sending of the information packet to be sent, the server-system or each client apparatus postpones sending of the information packet to be sent, and starts sending of the information packet to be sent, after the completion of the satellite-changeover; or repeatedly sends the information packet to be sent, until the completion of said satellite-changeover. Moreover, the server-system informs each satellite on at least one of the start time of, the time necessary for, and the end time of the satellite-changeover.