US5301264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Figure encoder
Assignee: Toshiba Corp
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Filing: 1992-07-16
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Granted: 1994-04-05
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Expires: 2012-07-16
Abstract
Abstract A figure encoder is disclosed which is particularly suitable for closed figures and which requires considerably reduced amount of information to be supplied by an operator and which is capable of registering the correct figures even when the original images contains some errors. The figure encoder may includes an image memory, a display, a device for specifying points on a displayed images, a device for extracting figures in accordance with the specified points, and a device for symbolizing the extracted figures. The figure encoder may include an image memory, a display, a device for specifying points on a displayed images, a device for thinning displayed images, a device for interpolating end points in the thinned figure, and a device for symbolizing the thinned figure.
Inventors
- 👤 Osamu Hori
- 👤 Akio Okazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:34
CPC Classifications
G; G06; G06T; G06T9/00; G06T9/20; G06K; G06K11/00; G06T11/00; G06T11/20; G06T11/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
A figure encoder, comprising: image memory means for recording images; display means for displaying the images recorded in the image memory means; pointing means for specifying a point on the images displayed by the display means; extracting means for extracting an image of a figure which at least roughly encloses the specified point in accordance with a coordinate of the specific point; means for detecting coordinates of end points of line segments involved in the figure extracted by the extracting means when the figure encloses the specified point incompletely; means for interpolating between the detected end points on the images recorded in the image memory means to produce a closed figure which completely encloses the specified point; and means for encoding the image of the closed figure obtained by the interpolating means.
Claim 2
Dependent Claim
132 words
A figure encoder, comprising: image memory means for recording images; display means for displaying the images recorded in the image memory means; pointing means for specifying a point on the images displayed by the display means; extracting means for extracting an image of a figure which at least roughly encloses the specified point in accordance with a coordinate of the specific point; means for detecting coordinates of end points of line segments involved in the figure extracted by the extracting means when the figure encloses the specified point incompletely; means for interpolating between the detected end points on the images recorded in the image memory means to produce a closed figure which completely encloses the specified point; and means for encoding the image of the closed figure obtained by the interpolating means.
Claim 3
Dependent Claim
43 words
The figure encoder of claim 1, wherein the extracting means includes: means for thinning the images recorded in the image memory means; and means for tracing a contour of a thinned image of the figure which at least roughly enclosing the specified point.
Claim 4
Dependent Claim
37 words
The figure encoder of claim 1, wherein the extracting means includes means for tracing the boundaries of the figure which is at least roughly enclosing the specified point in the images recorded in the image memory means.
Claim 5
Dependent Claim
36 words
The figure encoder of claim 1, wherein the extracting means includes means for synthetically extracting a plurality of closed figures, each closed figure enclosing a point specified by the pointing means, as a single closed figure.
References Cited (Backward Citations)
US4020463A
Cited
US4528692A
Cited
US4566126A
Cited
US4566128A
Cited
US4727589A
Cited
US4783829A
Cited
US4630309A
Cited
US4672683A
Cited
US4809201A
Cited
US4783841A
Cited
US4858150A
Cited
US4817187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |