US4291308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-linear raster generator
Assignee: Micron Technology Inc
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Filing: 1979-06-01
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Granted: 1981-09-22
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Expires: 1999-06-01
Abstract
Abstract A display system utilizing a non-linear raster generator is disclosed. As is conventional in raster scan displays, the scanning is controlled by two electrical signals arbitrarily designated the X and Y deflection signals. In the preferred embodiment, two memories are used to store signals which provide constants to control the amount of the non-linearity of the raster. These constants are processed to generate X and Y deflection signals which are generally hyperbolic in nature. This type of display is particularly useful for displaying mapping signals produced from airborne doppler radar.
Inventors
- 👤 Daniel J. Provine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/89; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/295; G01S7/298
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A system for displaying data using a non-linear raster comprising (1) memory means for storing video data to be displayed; (2) first means for reading said stored video data to generate a video data signal; (3) timer means for initiating said raster; (4) first storage means for storing first non-linear scan parameters; (5) second storage means for storing second non-linear scan parameters; (6) second means for reading said first and second non-linear scan parameters from said first and said second storage means and for processing said first and second non-linear scan parameters, to generate non-linear x and y deflection signals; and (7) display means responsive to said x and y deflection signals and said video data signal to display said video data signal using a non-linear raster.
Claim 2
Independent Claim
127 words
A system for displaying data using a non-linear raster comprising (1) memory means for storing video data to be displayed; (2) first means for reading said stored video data to generate a video data signal; (3) timer means for initiating said raster; (4) first storage means for storing first non-linear scan parameters; (5) second storage means for storing second non-linear scan parameters; (6) second means for reading said first and second non-linear scan parameters from said first and said second storage means and for processing said first and second non-linear scan parameters, to generate non-linear x and y deflection signals; and (7) display means responsive to said x and y deflection signals and said video data signal to display said video data signal using a non-linear raster.
Claim 3
Dependent Claim
34 words
A system for displaying data using a nonlinear scan raster in accordance with claim 1 wherein said means for reading and processing said non-linear scan parameters, includes arithmatic circuitry for generating hyperbolic scanning signals.
Claim 4
Dependent Claim
43 words
A system for displaying doppler radar video data using a non-linear raster in accordance with claim 2 wherein said memory means for storing data to be displayed includes circuitry for storing said doppler radar video data in a constant angle variable range format.
Claim 5
Dependent Claim
115 words
A non-linear raster generator comprising: (a) first memory means for storing data specifying a first set of parameters to be used to generate deflection signals to produce scan lines of said raster; (b) second memory means for storing data specifying a second set of parameters to be used to generate deflection signals to produce scan lines of said raster; (c) means for selectively reading data from said first and second memory means in a predetermined sequence to produce a first signal related to a first scan parameter and second signal related to a second scan parameter, including (d) arithmatic circuitry responsive to said first and second signals to produce first and second non-linear deflection signals.
Claim 6
Dependent Claim
115 words
A non-linear raster generator comprising: (a) first memory means for storing data specifying a first set of parameters to be used to generate deflection signals to produce scan lines of said raster; (b) second memory means for storing data specifying a second set of parameters to be used to generate deflection signals to produce scan lines of said raster; (c) means for selectively reading data from said first and second memory means in a predetermined sequence to produce a first signal related to a first scan parameter and second signal related to a second scan parameter, including (d) arithmatic circuitry responsive to said first and second signals to produce first and second non-linear deflection signals.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |