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:
Jun. 20, 1995
Filed:
Aug. 20, 1992
Naoto Tanabe, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A satellite broadcast communication system which makes a communication via a communication satellite comprises N sub stations respectively assigned a time slot having a predetermined time width T.sub.0, where N is an integer greater than one, and a main station including a broadcast part for broadcasting broadcast information to the N sub station via the communication satellite using a reference frame which has a time width N.times.T.sub.0, a part for receiving a reception acknowledge signal from the sub stations, and a part for setting a multi-frame to a predetermined value. The predetermined value is M.times.T.sub.0 when only M sub stations are subject to reception of the broadcast information, N/M is an integer and M.ltoreq.N, and the predetermined value is M.sub.1 .times.T.sub.0 when only M sub stations are subject to reception of the broadcast information, N/M is not an integer and M.sub.1 is an integer greater than M. Each of the N sub stations include a transmitting part for transmitting the reception acknowledge signal to the main station using the multi-frame which is set in the main station in response to the broadcast information which is received from the main station and is intended for the sub station to which the transmitting part belongs.