EP0175179A3 - Method and apparatus for generating a set of signals representing a curve - Google Patents
Method and apparatus for generating a set of signals representing a curve Download PDFInfo
- Publication number
- EP0175179A3 EP0175179A3 EP85110751A EP85110751A EP0175179A3 EP 0175179 A3 EP0175179 A3 EP 0175179A3 EP 85110751 A EP85110751 A EP 85110751A EP 85110751 A EP85110751 A EP 85110751A EP 0175179 A3 EP0175179 A3 EP 0175179A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- curve
- generating
- signals representing
- representing
- signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
- B41B19/00—Photoelectronic composing machines
- B41B19/01—Photoelectronic composing machines having electron-beam tubes producing an image of at least one character which is photographed
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85110751T ATE71022T1 (en) | 1984-09-10 | 1985-08-27 | METHOD AND APPARATUS FOR GENERATION OF A SET OF SIGNALS REPRESENTING A CURVE. |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/649,012 US4688182A (en) | 1984-09-10 | 1984-09-10 | Method and apparatus for generating a set of signals representing a curve |
| US649040 | 1984-09-10 | ||
| US06/649,040 US4686634A (en) | 1984-09-10 | 1984-09-10 | Method and apparatus for generating a set of signals representing a curve |
| US649012 | 1984-09-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0175179A2 EP0175179A2 (en) | 1986-03-26 |
| EP0175179A3 true EP0175179A3 (en) | 1987-10-07 |
| EP0175179B1 EP0175179B1 (en) | 1992-01-02 |
Family
ID=27095518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19850110751 Expired - Lifetime EP0175179B1 (en) | 1984-09-10 | 1985-08-27 | Method and apparatus for generating a set of signals representing a curve |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0175179B1 (en) |
| CA (1) | CA1248250A (en) |
| DE (1) | DE3585064D1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2806961B2 (en) * | 1989-02-22 | 1998-09-30 | 株式会社リコー | Image coding method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029947A (en) * | 1973-05-11 | 1977-06-14 | Rockwell International Corporation | Character generating method and system |
| US4199815A (en) * | 1978-05-12 | 1980-04-22 | Electra Corporation | Typesetter character generating apparatus |
| US4331955A (en) * | 1980-08-07 | 1982-05-25 | Eltra Corporation | Method and apparatus for smoothing outlines |
| WO1983002179A1 (en) * | 1981-12-07 | 1983-06-23 | Dicomed Corp | Method and apparatus for representation of a two dimensional figure |
-
1985
- 1985-08-27 DE DE8585110751T patent/DE3585064D1/en not_active Expired - Fee Related
- 1985-08-27 EP EP19850110751 patent/EP0175179B1/en not_active Expired - Lifetime
- 1985-09-10 CA CA000490402A patent/CA1248250A/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029947A (en) * | 1973-05-11 | 1977-06-14 | Rockwell International Corporation | Character generating method and system |
| US4199815A (en) * | 1978-05-12 | 1980-04-22 | Electra Corporation | Typesetter character generating apparatus |
| US4331955A (en) * | 1980-08-07 | 1982-05-25 | Eltra Corporation | Method and apparatus for smoothing outlines |
| WO1983002179A1 (en) * | 1981-12-07 | 1983-06-23 | Dicomed Corp | Method and apparatus for representation of a two dimensional figure |
Non-Patent Citations (2)
| Title |
|---|
| COMPUTER, vol. 17, no. 5, May 1984, pages 40-48, IEEE, Long Beach, California, US; J. FLOWERS: "Digital type manufacture: an interactive approach" * |
| J.D. FOLEY et al.: "Fundamentals of computer graphics", 1982, pages 514-523, Addison-Wesley Publ. Co., Reading, US * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0175179A2 (en) | 1986-03-26 |
| CA1248250A (en) | 1989-01-03 |
| EP0175179B1 (en) | 1992-01-02 |
| DE3585064D1 (en) | 1992-02-13 |
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Legal Events
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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