System and method for using a memory management unit to reduce m

Details System and method for using a memory management unit to reduce m System and method for using a memory management unit to reduce m

1994-05-24

2000-07-18

Teska, Kevin J.

Electrical computers and digital processing systems: memory

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395114, 395115, G06F 1310

Patent

active

060921714

ABSTRACT:
The invention provides a system and a method for managing digital data in a computer peripheral device which receives the data from a host computer. The system includes a processing circuit which receives data from the host and uses the data to control the computer peripheral device. The system further includes a memory device which stores data and comprises a plurality of storage locations. The system still further includes a memory management unit for controlling the storage of data in the memory device. The system still further includes a compression program for effecting compressed storage of data in memory. The memory management unit determines when the amount of data stored in the memory device exceeds a predetermined threshold and generates a compression signal. The compression program responds to the compression signal by effecting compressed storage of data. In the preferred embodiment of the present invention, the plurality of storage locations comprising the memory device is arranged in ordered arrays of subsets of storage locations. The memory management unit determines when the amount of data stored in one particular subset of the ordered array of subsets exceeds a predetermined threshold and generates a compression signal.

REFERENCES:
patent: 5105284 (1992-04-01), Sakata et al.
patent: 5113492 (1992-05-01), Aniki et al.
patent: 5115493 (1992-05-01), Jeanblane et al.
patent: 5142667 (1992-08-01), Dimperio et al.
patent: 5159681 (1992-10-01), Beck et al.
"Memory Management", Chap. 7, Am29030.TM. and Am29035.TM. Microprocessors, User's Manual and Data Sheet, Advanced Micro Devices, Inc., 1991.

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