US4688029A
Expired / Lapsed
US
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Analog display device
Assignee: Futaba Corp
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Filing: 1984-06-21
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Granted: 1987-08-18
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Expires: 2004-06-21
Abstract
Abstract An analog display device is disclosed which is capable of accurately displaying warning about input data. The device comprises a plurality of high range display segments and a plurality of low range display segments which are of any shape and alternately arranged in parallel to one another. At least a part of the low range display segments carries out display of color different from that of the high range display segments.
Inventors
- 👤 Hiroaki Kawasaki
- 👤 Nobumitsu Kanetsuna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:26
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/40; G01R13/404; G01R13/407; G01D; G01D3/00; G01D3/08; G01D7/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
267 words
An analog display device comprising: a plurality of range scales each being capable of independent illumination; a level display section having a plurality of high range display segments for indicating the remaining amount of the quantity being measured as a fraction between the maximum measurable amount of the quantity being measured a predetermined amount less than the maximum measurable amount of the quantity being measured and a plurality of low range display segments for indicating the remaining amount of the quantity being measured as a fraction between zero and the predetermined amount, said high and low range display segments being interspersed alternately arranged and in parallel to one another; a level selection circuit for generating a high level signal when the magnitude of the quantity being measured is above the predetermined amount and for generating a low level signal when the magnitude of the quantity being measured is decreased below the predetermined amount and for selectively illuminating one of said range scales in response to said high level and low level signals; a high range level comparator driver connected to each of said high range display segments for selectively illuminating said high range display segments depending upon the remaining amount of the quantity being measured: a low range level comparator driver connected to each of said low range display segments for selectively illuminating said low range display segments depending upon the remaining amount of the quantity being measured; and a range display section connected to said level selection circuit for indicating whether the remaining amount of the quantity being measured is above or below the predetermined amount.
Claim 2
Dependent Claim
267 words
An analog display device comprising: a plurality of range scales each being capable of independent illumination; a level display section having a plurality of high range display segments for indicating the remaining amount of the quantity being measured as a fraction between the maximum measurable amount of the quantity being measured a predetermined amount less than the maximum measurable amount of the quantity being measured and a plurality of low range display segments for indicating the remaining amount of the quantity being measured as a fraction between zero and the predetermined amount, said high and low range display segments being interspersed alternately arranged and in parallel to one another; a level selection circuit for generating a high level signal when the magnitude of the quantity being measured is above the predetermined amount and for generating a low level signal when the magnitude of the quantity being measured is decreased below the predetermined amount and for selectively illuminating one of said range scales in response to said high level and low level signals; a high range level comparator driver connected to each of said high range display segments for selectively illuminating said high range display segments depending upon the remaining amount of the quantity being measured: a low range level comparator driver connected to each of said low range display segments for selectively illuminating said low range display segments depending upon the remaining amount of the quantity being measured; and a range display section connected to said level selection circuit for indicating whether the remaining amount of the quantity being measured is above or below the predetermined amount.
Claim 3
Dependent Claim
33 words
The analog display device as defined in claim 1, wherein said low range display segments comprise color display elements emitting a color different from the color emitted by said high range display segments.
Claim 4
Dependent Claim
33 words
The analog display device as defined in claim 2, wherein said low range display segments comprise color display elements emitting a warning color selected from the group consisting of red, orange, and yellow.
Claim 5
Dependent Claim
33 words
The analog display device as defined in claim 1, wherein said high range display segments comprise color display elements emitting a safety color selected form the group consisting of green, blue, and white.
Claim 6
Dependent Claim
54 words
The analog display device as defined in claim 4, wherein said low range display segments include a first plurality of color display elements emitting a warning color selected from the group consisting of red and orange and a second plurality of color display elements emitting a color other than said safety and warning colors.
Claim 7
Dependent Claim
27 words
The analog display device as defined in claim 1, and further comprising a means for controlling the luminance of said display segments in said level display section.
Claim 8
Dependent Claim
26 words
The analog display device as defined in claim 6, wherein said means for controlling the luminance of said display segments comprises a pulse with control circuit.
Claim 9
Dependent Claim
25 words
The analog display device as defined in claim 6, wherein said means for controlling the luminance of said display segments comprises a voltage control circuit.
Claim 10
Dependent Claim
258 words
An analog display device comprising: a plurality of range scales each being capable of independent illumination; a level display section having a plurality of high range display segments for indicating the remaining amount of the quantity being measured as a fraction between the maximum measurable amount of the quantity being measured and a predetermined amount less than the maximum measurable amount of the quantity being measured and a plurality of low range display segments for indicating the remaining amount of the quantity being measured as a fraction between zero and the predetermined amount, said high and low range display segments being interspersed alternately and in parallel to one another, and means for selectively illuminating one of said range scales in response to said measured amount of said quantity being measured; a driver connected to each of said high range and low range display segments for selectively illuminating said high range and low range display segments depending upon the remaining amount of the quantity being measured; a means for controlling the luminance of said display segments, said means for controlling the luminance of said display segments being connected to said driver; a high range comparator connected to said means for controlling the luminance of said display segments for selecting said high range display segments depending upon the remaining amount of the quantity being measured; and a low range level comparator connected to said means for controlling the luminance of said display segments for selecting said low range display segments depending upon the remaining amount of the quantity being measured.
Claim 11
Dependent Claim
258 words
An analog display device comprising: a plurality of range scales each being capable of independent illumination; a level display section having a plurality of high range display segments for indicating the remaining amount of the quantity being measured as a fraction between the maximum measurable amount of the quantity being measured and a predetermined amount less than the maximum measurable amount of the quantity being measured and a plurality of low range display segments for indicating the remaining amount of the quantity being measured as a fraction between zero and the predetermined amount, said high and low range display segments being interspersed alternately and in parallel to one another, and means for selectively illuminating one of said range scales in response to said measured amount of said quantity being measured; a driver connected to each of said high range and low range display segments for selectively illuminating said high range and low range display segments depending upon the remaining amount of the quantity being measured; a means for controlling the luminance of said display segments, said means for controlling the luminance of said display segments being connected to said driver; a high range comparator connected to said means for controlling the luminance of said display segments for selecting said high range display segments depending upon the remaining amount of the quantity being measured; and a low range level comparator connected to said means for controlling the luminance of said display segments for selecting said low range display segments depending upon the remaining amount of the quantity being measured.
Claim 12
Dependent Claim
38 words
The analog display device as defined in claim 9 and further comprising a range display section connected to said driver for indicating whether the remaining amount of the quantity being measured is above or below the predetermined amount.
Claim 13
Dependent Claim
33 words
The analog display device as defined in claim 9, wherein said low range display segments comprise color display elements emitting a color different from the color emitted by said high range display segments.
Claim 14
Dependent Claim
33 words
The analog display device as defined in claim 9, wherein said high range display segments comprise color display elements emitting a safety colors selected from the group consisting of green, blue, and white.
Claim 15
Dependent Claim
54 words
The analog display device as defined in claim 12, wherein said low range display segments includes a first plurality of color display elements emitting a warning color selected from the group consisting of red and orange and a second plurality of color display elements emitting the same color as said high range display segments.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |