Invention Grant
US06629253B1 System for efficient management of memory access requests from a planar video overlay data stream using a time delay
失效
用于使用时间延迟从平面视频覆盖数据流高效地管理存储器访问请求的系统
- Patent Title: System for efficient management of memory access requests from a planar video overlay data stream using a time delay
- Patent Title (中): 用于使用时间延迟从平面视频覆盖数据流高效地管理存储器访问请求的系统
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Application No.: US09475735Application Date: 1999-12-30
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Publication No.: US06629253B1Publication Date: 2003-09-30
- Inventor: Todd M. Witter , Aditya Sreenivas , Kim Meinerth
- Applicant: Todd M. Witter , Aditya Sreenivas , Kim Meinerth
- Main IPC: G06F104
- IPC: G06F104
Abstract:
A method and apparatus for managing overlay data requests are disclosed. One embodiment of an apparatus includes a request unit and a timer. A request is made by a graphics controller to the request unit for a line of overlay data. The request unit divides the request from the graphics controller into a series of smaller requests. The smaller requests are issued to a memory controller. Delays are inserted between each of the smaller requests in order to allow other system resources to more easily gain access to memory.
Information query
