发明申请
- 专利标题: SHARED MEMORY MULTI VIDEO CHANNEL DISPLAY APPARATUS AND METHODS
- 专利标题(中): 共享内存多视频通道显示设备和方法
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申请号: US13524353申请日: 2012-06-15
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公开(公告)号: US20120300125A1公开(公告)日: 2012-11-29
- 发明人: Sanjay Garg , Bipasha Ghosh , Nikhil Balram , Kaip Sridhar , Shilpi Sahu , Richard Taylor , Gwyn Edwards , Loren Tomasi , Vipin Namboodiri
- 申请人: Sanjay Garg , Bipasha Ghosh , Nikhil Balram , Kaip Sridhar , Shilpi Sahu , Richard Taylor , Gwyn Edwards , Loren Tomasi , Vipin Namboodiri
- 主分类号: H04N7/01
- IPC分类号: H04N7/01
摘要:
A scaler positioning module may receive a video signal selected from among a plurality of video signals. The scaler positioning module may include scaler slots for arranging the signal path of the selected video signal through at least one scaler in the scaler positioning module. The scaler slots may enable the scaler positioning module to operate in three modes. The three modes may enable the scaler positioning module to output scaled data without memory operations, scale prior to a memory write, and scale after a memory read. A blank time optimizer (BTO) may receive data from the scaler positioning module at a first clock rate and distributed memory accesses based on a bandwidth requirement determination. The BTO may access memory at a second clock rate. The second clock rate may be slower than the first which may reduce memory bandwidth and enable another video signal to access memory faster.