发明名称 Video input switching and signal processing apparatus
摘要 An apparatus integrates a plurality of television signal sources into a cohesive audio/video environment. Internal provisions include a standard broadcast-frequency tuner, cable tuner as well as other optional inputs such as for a direct-broadcast satellite, previously recorded video material, etc. In the preferred embodiment, means are provided whereby a main or primary program channel may be linked to additional channels providing supplementary information to enhance resolution, sound quality, or to facilitate special effects.
申请公布号 US7917922(B1) 申请公布日期 2011.03.29
申请号 US19970822397 申请日期 1997.03.20
申请人 SCHWAB BARRY H;POSA JOHN G 发明人 SCHWAB BARRY H.;POSA JOHN G.
分类号 H04N7/173;H04N7/10;H04N7/16;H04N9/00 主分类号 H04N7/173
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