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发明名称
INTERACTIVE TELEVISION PROGRAM GUIDE SYSTEM FOR DETERMINING USER VALUES FOR DEMOGRAPHIC CATEGORIES
摘要
申请公布号
CA2620756(A1)
申请公布日期
1999.11.25
申请号
CA19992620756
申请日期
1999.05.13
申请人
UNITED VIDEO PROPERTIES, INC.
发明人
KNEE, ROBERT A.;REYNOLDS, STEVEN J.;HASSELL, JOEL G.;ELLIS, MICHAEL D.
分类号
H04H60/46;H04H60/33;H04H60/45;H04N7/16;H04N7/173
主分类号
H04H60/46
代理机构
代理人
主权项
地址
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