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. 06, 2005
Filed:
Dec. 04, 2000
Hizuru Nawata, Tokyo, JP;
Hizuru Nawata, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A VSAT station and a VSAT communication system have a demand assign multiple access function for keeping a transmission path only for a required period of time to effectively use frequencies. The VSAT station has a transmission controller for temporarily reading and storing communication datato be transmitted in bufferand outputting the stored communication data as transmission dataafter elapsed of a given period of time. Communication traffic monitoring circuitmonitors the stored amount of communication data in bufferand outputs communication path selecting signal. Transmission data switching circuitselects a transmission circuit to transmit the transmission data. If the communication traffic between communicating stations is increased, then dedicated lineis established in another frequency band. If CSC lineis congested, then dedicated lineis established to reduce the burden on CSC line. Thus, frequencies are effectively used and expenses for using the satellite repeater are reduced.