US3739222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bar graph display apparatus
Assignee: Honeywell Inc
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Filing: 1970-08-20
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Granted: 1973-06-12
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Expires: 1990-08-20
Abstract
Abstract A cathode-ray-tube display produces a plurality of separate bargraph displays on a viewing face. A plurality of individual input signals are each sequentially compared with an output level from a staircase generator during a single horizontal sweep of the CRT viewing face. A vertical sweep circuit is arranged to move the CRT beam in sequence along a plurality of horizontal levels while a counter means synchronizes the aforesaid comparison operation with a movement of the CRT beam along each horizontal level. Each equality between the compared signals during the comparison operation produces an intensity turn-on control signal for the CRT to effect a display of a horizontal level segment of a corresponding display bar.
Inventors
- 👤 E Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:44
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
315 words
A display system for concurrently displaying the amplitudes of a plurality of input signals comprising a display means having a display face, means for producing a display on said display face, means for selectively controlling said means for producing a display to produce said display at selected locations, means for moving said means for producing a display along selected ones of a plurality of predetermined paths on said display face, means for selectively selecting ones of said predetermined paths, trigger signal means arranged to operate said means for moving and means for selectively selecting in a predetermined cyclic fashion, staircase generator means responsive to said trigger signal means to generate a sequence of predetermined signal levels, each of said signal levels having a duration equal to the time of a movement of said means for producing a display along one of said predetermined paths, means for concurrently comparing each of said signal levels with all of the input signals to produce an output signal on respective ones of a plurality of output lines, a plurality of logic summing gates each having one input connected to a respective one of said output lines, an oscillator means, synchronizing means connecting said oscillator means to said trigger signal means to effect a synchronization of the occurrence of output signals fron said oscillator means with display locations along each one of said predetermined paths, counter means arranged to count said output signals from said oscillator means, said counter means having a plurality of output circuits, each of said output circuits carrying a separate count output signal, means connecting each of said output circuits to respective ones of a second input of said plurality of logic gates and means for applying in common all of the output signals from said logic gates to said means for selectively controlling to effect a selective energization of said means for producing a display.
Claim 2
Dependent Claim
315 words
A display system for concurrently displaying the amplitudes of a plurality of input signals comprising a display means having a display face, means for producing a display on said display face, means for selectively controlling said means for producing a display to produce said display at selected locations, means for moving said means for producing a display along selected ones of a plurality of predetermined paths on said display face, means for selectively selecting ones of said predetermined paths, trigger signal means arranged to operate said means for moving and means for selectively selecting in a predetermined cyclic fashion, staircase generator means responsive to said trigger signal means to generate a sequence of predetermined signal levels, each of said signal levels having a duration equal to the time of a movement of said means for producing a display along one of said predetermined paths, means for concurrently comparing each of said signal levels with all of the input signals to produce an output signal on respective ones of a plurality of output lines, a plurality of logic summing gates each having one input connected to a respective one of said output lines, an oscillator means, synchronizing means connecting said oscillator means to said trigger signal means to effect a synchronization of the occurrence of output signals fron said oscillator means with display locations along each one of said predetermined paths, counter means arranged to count said output signals from said oscillator means, said counter means having a plurality of output circuits, each of said output circuits carrying a separate count output signal, means connecting each of said output circuits to respective ones of a second input of said plurality of logic gates and means for applying in common all of the output signals from said logic gates to said means for selectively controlling to effect a selective energization of said means for producing a display.
Claim 3
Dependent Claim
59 words
A display system as set forth in claim 1 wherein said display means is a cathode-ray-tube, said means for producing a display is an electron beam arranged to write on the display face of said tube and said means for selectively controlling said electron beam is an intensity control means capable of selectively blanking and unblanking said electron beam.
Claim 4
Dependent Claim
30 words
A display system as set forth in claim 2 wherein said means for moving is a horizontal sweep means and said means for selectively selecting is a vertical sweep means.
Claim 5
Dependent Claim
48 words
A display system as set forth in claim 5 wherein said staircase generator means includes a second counter means for counting output signals from said trigger means and staircase generator means for converting responsive to a count signal from said second counter means for producing a staircase level.
Claim 6
Dependent Claim
32 words
A display system as set forth in claim 4 wherein said second counter means is reset at the end of a vertical sweep of said display face by said vertical sweep means.
Claim 7
Dependent Claim
46 words
A display system as set forth in claim 5 wherein said first-mentioned counter means has a maximum count corresponding to the number of output signals from said oscillator means during a movement of said electron beam by a horizontal sweep produced by said horizontal sweep means.
Claim 8
Dependent Claim
33 words
A display system as set forth in claim 6 wherein said second counter means has a maximum count corresponding to the number of staircase levels to be produced by said staircase generator means.
Claim 9
Dependent Claim
21 words
A display system as set forth in claim 1 wherein said plurality of logic summing gates are each two-input AND gates.
Claim 10
Dependent Claim
223 words
A display system for conCurrently displaying the amplitudes of a plurality of input signals comprising; a display means having a display face, means for producing a display on said display face; means for selectively controlling said means for producing a display to produce said display at selected locations; means for moving said means for producing a display along selected ones of a plurality of predetermined paths on said display face; means for selectively selecting ones of said predetermined paths; trigger signal means arranged to operate said means for moving and means for selectively selecting in a predetermined cyclic fashion; staircase generator means responsive to said trigger signal means to generate a sequence of predetermined signal levels, each of said signal levels having a duration equal to the time of movement of said means for producing a display along one of said predetermined paths; means for concurrently comparing each of said signal levels with all of the input signals to produce an output signal representative of a detected equality between any of said input signals and each of said signal levels; and synchronizing means responsive to output signals from said means for concurrently comparing to said means for selectively controlling to effect a selective energization of said means for producing a display at said predetermined display locations along each one of said predetermined paths.
Claim 11
Dependent Claim
223 words
A display system for conCurrently displaying the amplitudes of a plurality of input signals comprising; a display means having a display face, means for producing a display on said display face; means for selectively controlling said means for producing a display to produce said display at selected locations; means for moving said means for producing a display along selected ones of a plurality of predetermined paths on said display face; means for selectively selecting ones of said predetermined paths; trigger signal means arranged to operate said means for moving and means for selectively selecting in a predetermined cyclic fashion; staircase generator means responsive to said trigger signal means to generate a sequence of predetermined signal levels, each of said signal levels having a duration equal to the time of movement of said means for producing a display along one of said predetermined paths; means for concurrently comparing each of said signal levels with all of the input signals to produce an output signal representative of a detected equality between any of said input signals and each of said signal levels; and synchronizing means responsive to output signals from said means for concurrently comparing to said means for selectively controlling to effect a selective energization of said means for producing a display at said predetermined display locations along each one of said predetermined paths.
Claim 12
Dependent Claim
79 words
A display system as set forth in claim 9 wherein said display means is a cathode-ray-tube, said means for producing a display is an electron beam arranged to write on the display face of said tube and said means for selectively controlling said electron beam is an intensity control means capable of selectively blanking and unblanking said electron beam, said means for moving is a horizontal sweep means and said means for selectively selecting is a vertical sweep means.
Claim 13
Dependent Claim
226 words
A display system for displaying the amplitude of an input signal comprising, a display means having a display face; means for producing a display on said display face; means for selectively controlling said means for producing a display to produce said display at selected locations; means for moving said means for producing a display along selected ones of a plurality of predetermined paths on said display face; means for selectively selecting ones of said predetermined paths; trigger signal means arranged to operate said means for moving and means for selectively selecting in a predetermined cyclic fashion; staircase generator means responsive to said trigger signal means to generate a sequence of predetermined signal levels, each of said signal levels having a duration equal to the time of movement of said means for producing a display along one of said predetermined paths; means for concurrently comparing each of said signal levels with the input signal to produce an output signal representative of a detected equality between said input signal and each of said signal levels; and synchronizing means responsive to output signals from said trigger signal means to apply said output signal from said means for concurrently comparing to said means for selectively controlling to effect a selective energization of said means for producing a display at said predetermined display locations along each one of said predetermined paths.
Claim 14
Dependent Claim
226 words
A display system for displaying the amplitude of an input signal comprising, a display means having a display face; means for producing a display on said display face; means for selectively controlling said means for producing a display to produce said display at selected locations; means for moving said means for producing a display along selected ones of a plurality of predetermined paths on said display face; means for selectively selecting ones of said predetermined paths; trigger signal means arranged to operate said means for moving and means for selectively selecting in a predetermined cyclic fashion; staircase generator means responsive to said trigger signal means to generate a sequence of predetermined signal levels, each of said signal levels having a duration equal to the time of movement of said means for producing a display along one of said predetermined paths; means for concurrently comparing each of said signal levels with the input signal to produce an output signal representative of a detected equality between said input signal and each of said signal levels; and synchronizing means responsive to output signals from said trigger signal means to apply said output signal from said means for concurrently comparing to said means for selectively controlling to effect a selective energization of said means for producing a display at said predetermined display locations along each one of said predetermined paths.
Claim 15
Dependent Claim
79 words
A display system as set forth in claim 11 wherein said display means is a cathode-ray-tube, said means for producing a display is an electron beam arranged to write on the display face of said tube and said means for selectively controlling said electron beam is an intensity control means capable of selectively blanking and unblanking said electron beam, said means for moving is a horizontal sweep means and said means for selectively selecting is a vertical sweep means.
References Cited (Backward Citations)
No citation records indexed.
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 |