James A O'Connor

US Patent:

7124211, Oct 17, 2006

Filed:

Oct 23, 2002

Appl. No.:

10/278345

Inventors:

Christopher Dickson - Edina MN, US
David Caliga - Colorado Springs CO, US
James O'Connor - Colorado Springs CO, US
Daniel Poznanovic - Colorado Springs CO, US

Assignee:

SRC Computers, Inc. - Colorado Springs CO

International Classification:

G06F 13/28

US Classification:

710 22, 709212, 709213, 709215, 711147

Abstract:

Embodiments of the invention include a mechanism for explicit communication in a clustered multiprocessor system that supports low-latency, protected, user-mode, communication across the machine boundaries of a clustered multiprocessor. Data transport may be accomplished over persistent, unidirectional, point-to point connections, each of which may be embodied in a small amount of state at each end, along with a statically allocated per-connection memory buffer, which may be directly accessible to the transport mechanism at both ends of each notional link. System Memory protection may be afforded by operating system (“OS”) facilitated allocation of both restricted control of the network interface, and responsibility for data transport, to an application thread that may execute in the context of the processor-managed virtual address space. Connection buffer protection may be afforded by restricting access to connection state to those entries associated with the currently controlling thread.

US Patent:

60067357, Dec 28, 1999

Filed:

Sep 12, 1997

Appl. No.:

8/928380

Inventors:

Thomas L. Schlough - St. Cloud MN
Robert A. Penas - Silver Lake MN
James P. O'Connor - Cold Spring MN

Assignee:

Park Industries, Inc. - St. Cloud MN

International Classification:

B28D 104

US Classification:

125 1301

Abstract:

An automated stoneworking system and method for cutting and shaping various stone materials, such as marble and granite, in any number of preprogrammed fashions so as to eliminate the need for manual stoneworking operations.