Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-04-07
1999-10-26
Shalwala, Bipin H.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
36452811, 36452812, G09G 500
Patent
active
059736623
ABSTRACT:
A computer implemented environmental process control apparatus for displaying the condition of selected attributes of a plurality of environmental control components or zones within a facility. One embodiment of the apparatus is configured to create a river of time display including a rivulet having an historical and future data segment corresponding to each of the plurality of components or zones. In order to create the river of time, the apparatus includes a memory having a plurality of first instances of a data structure and a plurality of second instances of a data structure for storing historical and future data, respectively, means for establishing a look back value, means for establishing a look forward value, an historical data processing module, a future data processing module, a graphic engine, and a data access logic device. The historical and future data processing modules receive and commnunicate historical and future data, respectively, to the first and second instances of the data structure. The data entries are then selectively retrieved by the data access logic device and communicated to the graphic engine such that the graphic engine creates the river of time display over a time interval that the data access logic device calculates based upon the look back and look forward values.
REFERENCES:
patent: 5664084 (1997-09-01), Smith
patent: 5682329 (1997-10-01), Seem et al.
patent: 5777598 (1998-07-01), Gowda et al.
Gloudeman Jeffrey J.
Piotrowski Michael
Singers Robert R.
Chang Kent
Johnson Controls Technology Company
Shalwala Bipin H.
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