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US3739369A Expired / Lapsed US ⏱️ 0.0 years remaining

Historical data display

Assignee: General Electric Co
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Filing: 1971-01-04
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Granted: 1973-06-12
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Expires: 1991-01-04
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Abstract

Abstract Measurements of a particular parameter are digitized and scaled. The J most recent measurands are displayed as elements on a raster type display. The I scan lines are assigned magnitudes in accordance with their vertical position. Each scan line magnitude is compared with all J elements which are clocked out of a register one by one for comparison and returned to the register. Each comparison results in a color decision and control signal for the portion of the scan line represented by that particular element. At the completion of each frame the measurand register is updated to include more recent measurands.

Inventors

  • 👤 W Bunker
  • 👤 W Tew

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:09
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 123 words
A system for producing color control signals for a horizontally scanning raster type display to portray the history of a measured parameter comprising: a register containing measurands of said parameter covering an interval of time in chronological order; a counter producing scan line magnitudes in accordance with the scan lines'' vertical position; means for comparing the magnitude of the first scan line with all measurands beginning with the oldest, and seriatim each subsequent scan line with all measurands, and for producing for each comparison a first color control signal if the magnitude of said scan line is greater than that of the measurand, and a second color control signal if the magnitude of the measurand is greater than that of the scan line.
Claim 2
Independent Claim 123 words
A system for producing color control signals for a horizontally scanning raster type display to portray the history of a measured parameter comprising: a register containing measurands of said parameter covering an interval of time in chronological order; a counter producing scan line magnitudes in accordance with the scan lines'' vertical position; means for comparing the magnitude of the first scan line with all measurands beginning with the oldest, and seriatim each subsequent scan line with all measurands, and for producing for each comparison a first color control signal if the magnitude of said scan line is greater than that of the measurand, and a second color control signal if the magnitude of the measurand is greater than that of the scan line.
Claim 3
Dependent Claim 54 words
A system for producing color control signals in accordance with claim 1 further comprising: means for comparing the magnitude of a measurand with a predetermined limit in those cases where the magnitude of the measurand exceeds that of the scan line and for producing a third color control signal when the limit is exceeded.
Claim 4
Dependent Claim 42 words
A system for producing color control signals in accordance with claim 2 further comprising: means for replacing the oldest measurands in said measurand register with an equal number of more recent measurands when all scan lines in a frame have been compared.
Claim 5
Independent Claim 124 words
A system for producing color control signals for a horizontally scanned raster type display to portray the history of a measuRed parameter comprising: a measurand register containing scaled and digitized measurements of said parameter covering an interval of time in chronological order; a counter producing a first and second sequence of scan line magnitudes in accordance with the scan lines'' vertical position, the first sequence covering the odd numbered scan lines, and the second sequence covering the even numbered scan lines; means for comparing the magnitude of each scan line with all the measurands in said measurand register until said first and second sequences of scan line magnitudes have been completed and for producing color control outputs indicative of the results of each comparison.
Claim 6
Independent Claim 124 words
A system for producing color control signals for a horizontally scanned raster type display to portray the history of a measuRed parameter comprising: a measurand register containing scaled and digitized measurements of said parameter covering an interval of time in chronological order; a counter producing a first and second sequence of scan line magnitudes in accordance with the scan lines'' vertical position, the first sequence covering the odd numbered scan lines, and the second sequence covering the even numbered scan lines; means for comparing the magnitude of each scan line with all the measurands in said measurand register until said first and second sequences of scan line magnitudes have been completed and for producing color control outputs indicative of the results of each comparison.
Claim 7
Independent Claim 140 words
A system for producing color control signals to produce a graphical representation of the history of a measured quantity from a stream of scaled and digitized measurands by switching between colors on a horizontally scanned raster type display having I scan lines and J scan elements comprising: a scan line magnitude counter for producing the magnitudes of said I scan lines in digitized form in accordance with the scan lines'' vertical position on said raster type display; a scan element register containing the J most recent scaled and digitized measurands; means for comparing the magnitude of the first scan line sequentially with the magnitude of each of the J elements and seriatim comparing each subsequent scan line magnitude sequentially with the magnitude of each of the J elements and producing color control outputs indicative of the results of each comparison.
Claim 8
Independent Claim 140 words
A system for producing color control signals to produce a graphical representation of the history of a measured quantity from a stream of scaled and digitized measurands by switching between colors on a horizontally scanned raster type display having I scan lines and J scan elements comprising: a scan line magnitude counter for producing the magnitudes of said I scan lines in digitized form in accordance with the scan lines'' vertical position on said raster type display; a scan element register containing the J most recent scaled and digitized measurands; means for comparing the magnitude of the first scan line sequentially with the magnitude of each of the J elements and seriatim comparing each subsequent scan line magnitude sequentially with the magnitude of each of the J elements and producing color control outputs indicative of the results of each comparison.

References Cited (Backward Citations)

US3387084A Cited
US3406387A Cited
US3474438A Cited
US3469252A Cited
US3603963A Cited
US3543148A Cited
US3648270A Cited
US3686662A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-11 1976-12-11 1977-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-11 1980-12-11 1981-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-11 1984-12-11 1985-06-12 $7700.00 Window Closed / Lapsed

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