发明授权
US5455626A Apparatus, systems and methods for providing multiple video data streams
from a single source
失效
用于从单个源提供多个视频数据流的装置，系统和方法
- 专利标题： Apparatus, systems and methods for providing multiple video data streams from a single source
- 专利标题（中）： 用于从单个源提供多个视频数据流的装置，系统和方法
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申请号： US152182申请日： 1993-11-15
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公开(公告)号： US5455626A公开(公告)日： 1995-10-03
- 发明人: Frank Xu , Robert M. Nally
- 申请人： Frank Xu , Robert M. Nally
- 申请人地址： CA Fremont
- 专利权人： Cirrus Logic, Inc.
- 当前专利权人： Cirrus Logic, Inc.
- 当前专利权人地址： CA Fremont
- 主分类号： H04N5/92
- IPC分类号： H04N5/92 ; H04N7/08
摘要：
A method is provided for generating a output composite video data stream. During a first phase of a set of processing phases, a frame of first video data is received and then downscaled to produce a first block of data. Also during the first phase, the first block is stored and then retrieved from a first memory space. The first block is next upscaled and then output as a first field of a composite video data stream. During a second phase of the set of processing phases, a frame of second video data is received and downscaled to produce a second block of data. Also during the second phase, the second block of data is stored and then retrieved from a second memory space. The second block is next upscaled during the second processing phase and then output as a second field of the composite video stream.
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