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PrimeStar was a U.S. direct broadcast satellite broadcasting company formed in 1991 by a consortium of cable television system operators. PrimeStar was the first medium-powered DBS system in the United States but slowly declined in popularity with the arrival of DirecTV in 1994 and Dish Network in 1996. == Technology == PrimeStar was a medium-powered DBS-style system utilizing FSS technology that used a larger 3-foot (91 cm) satellite dish to receive signals. Broadcast originally in analog, they later converted to digital technology. The system used the DigiCipher 1 system for conditional access control and video compression. The video format was MPEG-2. Primestar's satellite receivers were made by General Instrument. PrimeStar was owned by a consortium of cable television companies who leased equipment to subscribers through the local cable company. The company was in the process of converting to a high-powered DBS platform when it was purchased and shut down by DirecTV. The Tempo-1 and Tempo-2 DBS satellites acquired by PrimeStar from the defunct ASkyB were renamed DirecTV-5 and DirecTV-6, respectively. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PrimeStar」の詳細全文を読む スポンサード リンク
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