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:
Sep. 19, 1978
Filed:
Mar. 21, 1977
William G Schmidt, Gaithersburg, MD (US);
Satellite Business Systems, McLean, VA (US);
Abstract
A time division multiple access (TDMA) communication system has a plurality of geographically separated stations including a first group of stations, each of which can communicate with any other station in the first group through a first transponder in a predetermined portion of a TDMA frame (intra-group traffic), and a second group of stations, each of which can communicate with any other station in the second group through a second transponder in a predetermined portion of a TDMA frame associated with the second transponder (intra-group traffic). The TDMA frames of the first and second transponders are synchronized and inter-group traffic, i.e., communications between a station in the first group and a station in the second group, takes place in another predetermined portion of each of the frames which is exclusive of the predetermined portion of both frames used for intra-group traffic. Transponder hopping is employed without requiring needless duplication of terminal equipment and, at the same time, assuring non-overlapping transmissions through the same transponder.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile