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Communications network 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04N-007/167
  • H04K-001/00
출원번호 US-0157720 (1993-11-26)
우선권정보 FR-0014358 (1992-11-26)
발명자 / 주소
  • Monnin Gerard (Paris FRX)
출원인 / 주소
  • Schlumberger Industries (Montrouge FRX 03)
인용정보 피인용 횟수 : 117  인용 특허 : 0

초록 ▼

A communications network between a central station which broadcasts coded information and at least one receiver suitable for receiving and decoding these broadcasts, in which, in order to control the number of users, permission for users to access the network is determined by a limited number of spe

대표청구항 ▼

A receiver for a communications network, including a station which broadcasts coded program signals, said receiver being assigned to each user subscribing to such communications network for receiving and decoding the broadcast signals, the receiver comprising: means for authenticating access rights

이 특허를 인용한 특허 (117)

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