Multi-variable operations

Details Multi-variable operations Multi-variable operations

Filed on

2004-09-06

Date issued

2008-10-28

Examiner

Bullock, Crystal Barnes (Department: 2121)

Patent Class

Computer graphics processing and selective visual display system

SubClass

Computer graphics processing

SubSubClass

Graph generating

Other Related Categories

C700S048000, C703S002000, C706S023000, C706S025000, C706S906000

Type

Reexamination Certificate

Status

active

Patent number

07443395

Description

ABSTRACT:
Operation of a multi-variable process involves multidimensional representation of the value (p1-p12) of the process variables (P1-P12) according to individual coordinate axes, and an operational envelope (UB,LB) derived from a group of sets of values for the process and quality variables (P1-P12,Q1-Q2) accumulated from multiple, earlier operations of the process, defines an operating zone for the process and quality variables of the process. If the current value (p7) of any process variable (P7) goes outside the envelope, an envelope (UO,LB) for a different, wider grouping of the stored data-sets is displayed at least for the quality variables (Q1-Q2). A series of nested envelopes to provide stepwise enlargement of the operating zone may be provided, but non-nested envelopes can be used where there is clustering of acceptable values of process variables of the stored data-sets. The changes to control variables to bring the values of dependent variables within a best operating range can be determined.

REFERENCES:
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patent: 7356779 (2008-04-01), Cras et al.
patent: 2004/0049295 (2004-03-01), Wojsznis et al.
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patent: WO 03/025689 (2003-03-01), None

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