US4945498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
CAD/CAM plotting system by one-stroke sketching
Assignee: Nissan Motor Co Ltd
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Filing: 1989-02-14
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Granted: 1990-07-31
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Expires: 2009-02-14
Abstract
Abstract In a CAD/CAM plotting system, graphic data relating to an object to be plotted is sequentially input in accordance with instruction of a CAD/CAM program so as to plot a desired shape of the object on a display screen. A schematic outline of the object is one-stroke-sketched on the display screen. The sketched outline of the object is processed in the pattern recongnition and data analysis. Thereafter, coordinate points of the processed outline corresponding to correct dimension values of the object are determined by inputting a minimum number of dimension values thereof. Finally, the processed outline is automatically corrected with the correct dimension values based upon the determined coordinate points.
Inventors
- 👤 Kazuhiro Mitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:03
CPC Classifications
G; G06; G06T; G06T11/00; G06T11/20; G06T11/26; G06T11/23
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
A CAD/CAM (computer-aided design/computer-aided manufacturing) plotting system wherein grapic data relating to an object to be plotted is sequentially input in accordance with instructions of a CAD/CAM program so as to plot a desired shape of said object on a display screen, comprising: means for one-stroke-sketching a schematic outline of said object as said graphic data on the display screen; means for pattern-recognizing said sketched schematic outline; means for data-analyzing said pattern-recognized schematic outline; means for determining coordinate points of said data-analyzed outline corresponding to correct dimension values of said object by inputting a predetermined number of dimension values thereof; and, means for automatically correcting said data-analyzed schematic outline with the correct dimension values based upon said determined coordinate points.
Claim 2
Dependent Claim
120 words
A CAD/CAM (computer-aided design/computer-aided manufacturing) plotting system wherein grapic data relating to an object to be plotted is sequentially input in accordance with instructions of a CAD/CAM program so as to plot a desired shape of said object on a display screen, comprising: means for one-stroke-sketching a schematic outline of said object as said graphic data on the display screen; means for pattern-recognizing said sketched schematic outline; means for data-analyzing said pattern-recognized schematic outline; means for determining coordinate points of said data-analyzed outline corresponding to correct dimension values of said object by inputting a predetermined number of dimension values thereof; and, means for automatically correcting said data-analyzed schematic outline with the correct dimension values based upon said determined coordinate points.
Claim 3
Dependent Claim
29 words
A CAD/CAM plotting system as claimed in claim 1, wherein said graphic data contains a point, a line, an arc and a size concerning said object to be plotted.
Claim 4
Dependent Claim
28 words
A CAD/CAM plotting system as claimed in claim 1, wherein said dimension values contain a distance between two coordinate points, a diameter, and an angle of said object.
Claim 5
Dependent Claim
20 words
A CAD/CAM plotting system as claimed in claim 1, wherein said one-stroke-sketching means includes a stylus pen and a keyboard.
Claim 6
Dependent Claim
13 words
A CAD/CAM plotting system as claimed in claim 4, further comprising a tablet.
Claim 7
Dependent Claim
26 words
A CAD/CAM plotting system as claimed in claim 1, further comprising a plotter for plotting said desired shape of the object displayed on said display screen.
Claim 8
Dependent Claim
118 words
A CAD/CAM (computer-aided design/computer-aided manufacturing) plotting method wherein graphic data relating to an object to be plotted is sequentially input in accordance with instructions of a CAD/CAM program so as to plot a desired shape of said object on a display screen, comprising the steps of: one-stroke-sketching a schematic outline of said object as said graphic data on the display screen; pattern-recognizing said one-stroke-sketched outline of said object; data-analyzing said pattern-recognized outline of said object; determining coordinate points of said data-analyzed outline corresponding to correct dimension values of said object by inputting a predetermined number of dimension values thereof, and, automatically correcting said data-analyzed outline of said object with the correct dimensions based upon said determined coordinate points.
Claim 9
Dependent Claim
118 words
A CAD/CAM (computer-aided design/computer-aided manufacturing) plotting method wherein graphic data relating to an object to be plotted is sequentially input in accordance with instructions of a CAD/CAM program so as to plot a desired shape of said object on a display screen, comprising the steps of: one-stroke-sketching a schematic outline of said object as said graphic data on the display screen; pattern-recognizing said one-stroke-sketched outline of said object; data-analyzing said pattern-recognized outline of said object; determining coordinate points of said data-analyzed outline corresponding to correct dimension values of said object by inputting a predetermined number of dimension values thereof, and, automatically correcting said data-analyzed outline of said object with the correct dimensions based upon said determined coordinate points.
Claim 10
Dependent Claim
29 words
A CAD/CAM plotting method as claimed in claim 7, wherein said graphic data contains a point, a line, an arc and a size concerning said object to be plotted.
Claim 11
Dependent Claim
28 words
A CAD/CAM plotting method as claimed in claim 7, wherein said dimension values contain a distance between two coordinate points, a diameter and an angle of said object.
References Cited (Backward Citations)
US4513374A
Cited
US4855939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-30 | 1994-01-29 | 1994-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-30 | 1998-01-29 | 1998-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-30 | 2002-01-29 | 2002-07-31 | $7700.00 | Window Closed / Lapsed |