Data transferring system between host and I/O using a main buffer with sub-buffers where quantity of data in sub-buffers determine access requests
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1996
Grant Date -
N/A
app pub date -
Mar 17, 1992
filing date -
Mar 18, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data transfer control apparatus for communicating data between a host device and an input/output device through a main buffer memory for temporarily holding the data, wherein a sub-buffer memory is disposed at least either between the main buffer memory and the host device or between the main buffer memory and the input/output device for temporarily storing the data, the amount of data stored in the sub-buffer memory is detected, access requests to the main buffer memory on the side of the host device or the input/output device are outputted in accordance with the detected data amount, and one of the access requests to the main buffer memory is selected in accordance with the priority order to access the main buffer memory on the basis of the selected access request.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully