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Method and apparatus for minimizing conditional access information overhead while ensuring conditional access information reception in multi-tuner receivers

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04H-001/00
  • H04Q-007/20
출원번호 US-0302416 (2002-11-21)
발명자 / 주소
  • Klauss,Peter M.
  • Kahn,Raynold M.
  • Gagnon,Gregory J.
  • Ha,David D.
출원인 / 주소
  • The DirecTV Group, Inc.
인용정보 피인용 횟수 : 4  인용 특허 : 125

초록

A method and apparatus for receiving conditional access information (CAI) on one or more of a plurality of tuners receiving the CAI from a first tuner of the plurality of tuners is disclosed. The method comprises the steps of determining if the CAI is of a first type that is transmitted by all of a

대표청구항

What is claimed is: 1. A method of processing conditional access information (CAI) , receivable on a receiver having a plurality of tuners, comprising the steps of: receiving the CAI from a first tuner of the plurality of tuners; determining if the CAI is of a first type that is transmitted by all

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  1. Walker, Glenn A.; Dibiaso, Eric A.; Hiatt, Jr., Michael L., Method to increase performance of secondary data in a heirarchial modulation scheme.
  2. Walker,Glenn A.; Dibiaso,Eric A.; Hiatt, Jr.,Michael L., Method to increase performance of secondary data in a hierarchical modulation scheme.
  3. Dibiaso, Eric A.; Walker, Glenn A.; Hiatt, Jr., Michael L., Method to minimize degradation in a D-MPSK hierarchical modulation system.
  4. Millar, Keith; Harvey, Colin, Scrambled digital data item.
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