发明授权
US4991011A Interactive television terminal with programmable background audio or
video
失效
具有可编程背景音频或视频的交互式电视终端
- 专利标题: Interactive television terminal with programmable background audio or video
- 专利标题(中): 具有可编程背景音频或视频的交互式电视终端
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申请号: US340967申请日: 1989-04-20
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公开(公告)号: US4991011A公开(公告)日: 1991-02-05
- 发明人: Lee R. Johnson , Elizabeth A. Smith
- 申请人: Lee R. Johnson , Elizabeth A. Smith
- 申请人地址: GA Atlanta
- 专利权人: Scientific-Atlanta, Inc.
- 当前专利权人: Scientific-Atlanta, Inc.
- 当前专利权人地址: GA Atlanta
- 主分类号: H04N5/445
- IPC分类号: H04N5/445 ; H04N7/088 ; H04N7/16 ; H04N7/167 ; H04N7/173 ; H04N21/41 ; H04N21/472 ; H04N21/478 ; H04N21/488
摘要:
Apparatus for use in a television terminal selectively provides a background audio or video signal or both to accompany display of a screen of textual information. The apparatus comprises a tuning circuit for tuning to a predetermined background channel determined by user selection of a particular textual information screen for display. As a result, dinner music may accompany textual informative screens related to the choice of a meal. Alternatively, instructions on how to purchase a movie might be accompanied in the background by the movie. Either the movie picture or the sound or both may accompany the instruction screen.