Cynthia Lashay Ross

US Patent:

52652068, Nov 23, 1993

Filed:

Oct 23, 1990

Appl. No.:

7/602442

Inventors:

Floyd W. Shackelford - Buford GA
Cynthia A. Ross - Boynton Beach FL
William L. Rich - Stone Mountain GA
Robert L. Abraham - Marietta GA
John R. Tiller - Peachtree City GA
Richard E. Moore - Marietta GA
Richard S. Briggs - Bloomingdale IL

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1300

US Classification:

395200

Abstract:

A system for implementing a messenger and object manager in an object oriented programming environment on a data processor containing a memory, in which objects are categorized into one or more classes which define methods of the objects categorized therein, and in which messages are sent by the data processor to objects to perform actions thereon. The system includes a message call processing procedure operating on the data processor for processing message calls to instances, including a method resolution segment for calling a loaded classes table to determine whether the class corresponding to a method of the instance is loaded, where the method corresponds to the action requested by the message. If the corresponding class is not loaded in main memory, then the system dynamically loads the class. A data resolution segment calls an object management table to resolve an indirection pointer which points to the address of a data frame corresponding to the instance.

US Patent:

53136292, May 17, 1994

Filed:

Oct 23, 1989

Appl. No.:

7/425607

Inventors:

Robert L. Abraham - Marietta GA
Richard E. Moore - Marietta GA
William L. Rich - Stone Mountain GA
Floyd W. Shackelford - Buford GA
John R. Tiller - Peachtree GA
Cynthia A. Ross - Boynton Beach FL
Richard S. Briggs - Bloomingdale IL

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1540

US Classification:

395600

Abstract:

A Unit of Work object class for an object oriented database management system provides concurrent processing through Unit of Work levels and instances while maintaining the integrity of the data in the database. Each new Unit of Work assigned to a task is an instance of the Unit of Work object class. A Unit of Work manager controls each step such that manipulation of the data occurs to the copies at that particular level for that particular instance. Only after all levels have been completed satisfactorily will a "Commit" occur to the data in the database. If completion is not satisfactory, Rollback of the levels occur, thus preserving data integrity. The Unit of Work manager can also switch control between Unit of Work instances, thus permitting simultaneous performance of tasks.

US Patent:

58289810, Oct 27, 1998

Filed:

May 11, 1995

Appl. No.:

8/439343

Inventors:

Christie Ann Callender - Houston TX
James Joseph Funk - Houston TX
Cynthia Marie Ross - Bellaire TX
John Benjamin Turbeville - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

G01V 148

US Classification:

702 6

Abstract:

Methods of directly analyzing wireline well logging data to derive pore types, pore volumes and capillary pressure curves from the wireline logs are disclosed. A trained and validated neural network is applied to wireline log data on porosity, bulk density and shallow, medium and deep conductivity to derive synthetic pore type proportions as a function of depth. These synthetic data are then applied through a derived and validated capillary pressure curve data model to derive pore volume and pressure data as a function of borehole depth.

US Patent:

52915930, Mar 1, 1994

Filed:

Oct 24, 1990

Appl. No.:

7/602575

Inventors:

Robert L. Abraham - Marietta GA
Cynthia A. Ross - Boynton Beach FL
Richard E. Moore - Marietta GA
William L. Rich - Stone Mountain GA
Floyd W. Shackelford - Buford GA
John R. Tiller - Peachtree City GA
Richard S. Briggs - Bloomingdale IL

Assignee:

International Business Machines Corp. - Armonk NY

International Classification:

G06F 1540
G06F 710

US Classification:

395600

Abstract:

A data structure and method for uniquely identifying, and optimizing access to, object instances in an object oriented programming environment on a data processor containing a memory. Objects are categorized into one or more classes which define the method of the categorized objects, and messages are sent by the data processor to objects to perform actions. The data structure consists of a persistent portion containing a unique object identifier and a non-persistent portion containing the access address of an instance data frame in memory. The access address is set to the address of the instance data frame control block when the message is sent in order to optimize subsequent messages to the same object instance. The instance data frame control blocks are not allocated in memory until a first message is sent to an instance.