发明授权
- 专利标题: Special features for digital television
- 专利标题(中): 数字电视的特色功能
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申请号: US876112申请日: 1997-06-13
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公开(公告)号: US5999227A公开(公告)日: 1999-12-07
- 发明人: Donald B. Doherty , Robert J. Gove , John R. Reder
- 申请人: Donald B. Doherty , Robert J. Gove , John R. Reder
- 申请人地址: TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: TX Dallas
- 主分类号: H04N5/44
- IPC分类号: H04N5/44 ; H04N5/45 ; H04N7/08 ; H04N7/081 ; H04N7/26 ; H04N5/445
摘要:
A system for handling special television video features digitally. The system receives incoming broadcast video into a switch (106). The switch allows the viewer to select a main channel and at least one auxiliary channel for viewing as a special feature, if the viewer does not want to view only the main channel for that particular special feature. The main video channel data is processed by a scan converter (216) to convert it from interlaced to progressive scan. A logic device (212) handles the auxiliary channel data to format it into the selected special feature and inputs that data to the scan converter (216) such that the special feature appears in the proper place relative to the main channel image.
公开/授权文献
- US4657371A Electrophotographic copying apparatus and process 公开/授权日:1987-04-14
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