Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 6233660 | System and method for emulating mainframe channel programs by open systems computer systems A digital computer system comprises a mass storage subsystem and an "open systems" computer system. The mass storage subsystem includes a storage device for storing data and an access control for performing an access operation in connection with the stora... | 05/15/2001 |
| 6223269 | Stacked mapped storage system A stacked map storage system has a base mapping of logical data to physical locations in the storage system. Level maps are created either as positive or negative maps of a lower level map. A positive map enables an alternate view while keeping the next l... | 04/24/2001 |
| 6209059 | Method and apparatus for the on-line reconfiguration of the logical volumes of a data storage system A method of dynamically reconfiguring the logical devices in a storage system is provided. The method allows a logical devices to be added, removed, or repositioned without requiring the storage system to be taken off-line. The method includes manipulatin... | 03/27/2001 |
| 6145006 | Method and apparatus for coordinating locking operations of heterogeneous host computers accessing a storage subsystem A method of managing shared storage system resources amongst a plurality of heterogeneous host computers utilizing different operating systems is described. The method includes providing a lock mechanism which allows a host to gain exclusive control of st... | 11/07/2000 |
| 6105085 | Lock mechanism for shared resources having associated data structure stored in common memory include a lock portion and a reserve portion A shared resource lock mechanism is provided which enables processors in a multi-processor environment which each share common resources to obtain locks on those resources. The lock mechanism also includes a reserve feature which provides a mechanism for ... | 08/15/2000 |
