Read only linear stream based cache system

Details Read only linear stream based cache system Read only linear stream based cache system

1994-12-06

1997-04-22

Robertson, David L.

395508, G06F 1314

Patent

active

056236999

ABSTRACT:
A cache for a linear stream based cache system receives video data from a data source and transmits the video data to an application controlling a display for displaying the video data. The cache system includes an application memory storing first data, a cache memory, operatively connected to the application memory, and storing second data, and a data processor, operatively connected to the application and cache memories. The data processor controls the transmission of third data from the data source to the application via at least one of the application and cache memories responsive to an application file request. When the data processor determines that a sufficient amount of at least one of the first and second data is stored in at least one of the application and cache memories, respectively, the application accesses the first data in the application memory, and the data processor controls the transmission of the second data from the cache memory to the application memory, and the third data from the data source to the cache memory. In addition, when the data processor determines that the sufficient amount of at least one of the first and second data is not stored in at least one of the application and cache memories, respectively, the application accesses the first data in said application memory, and the data processor controls the transmission of the second data from the cache memory to the application memory, and the third data from the data source to the application memory.

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