Presentation 2006-12-22
Clock Synchronized TDMA Direct Satellite Broadcasting Network : In search of new applications of DSB network
Osamu Ichiyoshi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The direct satellite broadcasting (DSB) through communication satellites (CS) is now monopolized by the company SkyPerfecTV and the transmission sites are located only in Tokyo area. This narrow transmission side of the system may have caused premature saturation of the market. The DSB system herein proposed enables direct transmission of independent signals from multiple sites in remote areas toward a satellite transponder which is shared by those stations in TDMA modes and the combined signal can be received by existing DSB receivers. In another words, it realizes a truly direct satellite broadcasting system for the transmission sides as well as the receive sides. The system enables the local broadcasting stations expand their coverage areas from prefecture to nationwide scales at minimal investment additional to the vast ongoing digitalization cost. The direct flow of information from any local areas to the whole national region will then create new business opportunities for local industries and contribute to the well balanced development of the nation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Perfectly synchronous TDMA / Clock coherent / Direct satellite broadcasting / DSB / Multiple access / Simultaneous transmission / VSAT / SNG
Paper # SAT2006-54
Date of Issue

Conference Information
Committee SAT
Conference Date 2006/12/15(1days)
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Paper Information
Registration To Satellite Telecommunications (SAT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Clock Synchronized TDMA Direct Satellite Broadcasting Network : In search of new applications of DSB network
Sub Title (in English)
Keyword(1) Perfectly synchronous TDMA
Keyword(2) Clock coherent
Keyword(3) Direct satellite broadcasting
Keyword(4) DSB
Keyword(5) Multiple access
Keyword(6) Simultaneous transmission
Keyword(7) VSAT
Keyword(8) SNG
1st Author's Name Osamu Ichiyoshi
1st Author's Affiliation NEC Corporation()
Date 2006-12-22
Paper # SAT2006-54
Volume (vol) vol.106
Number (no) 446
Page pp.pp.-
#Pages 6
Date of Issue