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Broadcasting system and reception apparatus

  • US 7,908,619 B2
  • Filed: 11/30/2000
  • Issued: 03/15/2011
  • Est. Priority Date: 12/01/1999
  • Status: Expired due to Fees
First Claim
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1. A broadcasting system comprising:

  • a broadcasting station for broadcasting digital contents and attribute information indicating an attribute thereof and an electronic program guide (EPG); and

    a plurality of reception apparatuses having;

    reception means for receiving said digital contents and said attribute information broadcast from the broadcasting station,output means for outputting the received digital contents, andselection means for allowing a user to select the digital contents via a filtering process by comparing selection information indicating user preferences with attribute information assigned to the digital contents,said selection information is expressed with an n-dimensional vector S comprising user preference items as elements,wherein each element identifies a preference intensity,wherein an element of vector S identifies a positive value as a preference intensity when the user has demonstrated a positive preference for the element and indentifies a negative value as a preference intensity when the user has demonstrated a negative preference for the element, andwherein said plurality of reception apparatuses include a selection means for;

    (1) performing a calculation between a vector A related to the attribute information and the vector S; and

    (2) determining whether to select the digital content based on the result of the calculation,wherein Vector S is generated by using Vector A for a program which is reproduced for a specified period of time or longer, andwherein Vector S is generated by changing a weighting factor for a reserved program and a realtime reproduced program.

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