Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2008-04-29
2008-04-29
Sparks, Donald (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S158000, C710S006000, C710S040000, C710S043000
Reexamination Certificate
active
10334279
ABSTRACT:
In information storage systems in which data retrieval requires movement of at least one physical element, a measurable amount of time is required to reposition that physical element in response to each data write or read request. After selecting one or more data requests for dispatch based solely on an approaching or past due time deadline, additional requests are identified for data to be read or written to locations which are in close proximity to previously scheduled requests, previously selected additional requests, or the present position of the moveable physical element, obviating the need to expend the full amount of time required to accelerate the physical element and then decelerate the physical element to position it over the desired area within the information storage system. In this manner, data may be transferred to or retrieved from an information storage system more efficiently with less expenditure of time.
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Chanda Anupam
Rajamony Ramakrishnan
Rawson, III Freeman Leigh
Bradley Matthew
Dillon & Yudell LLP
International Business Machines - Corporation
Salys Casimer K.
Sparks Donald
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