US4298868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic display apparatus
Assignee: Individual
•
Filing: 1980-04-11
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Granted: 1981-11-03
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Expires: 2000-04-11
Abstract
Abstract An apparatus is provided to produce an optical illusion of variable geometric patterns. The apparatus may be used as an electronic toy, display or kinetic art mural, as well as a demonstration aid in geometry, physics or physiology. An array of light emitting diodes mounted on a rotating disk or carrier is selectively activated to control the geometric patterns formed.
Inventors
- 👤 John R. Spurgeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/008; A; A63; A63J; A63J17/00; G; G09; G09B; G09B23/00; G09B23/02; G09B23/04; G09B23/06; G09F; G09F13/00; G09F13/30; G09F9/00; G09F9/30; Y; Y10; Y10S; Y10S362/00; Y10S362/806; Y10S362/811
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
An electronic display apparatus, comprising: (a) a disk member; (b) a plurality of light emitting means mounted with said disk member; (c) means for rotating said disk member; and (d) electronic control circuit means for selectively activating said plurality of light emitting means to selectively form differing visual images for viewing, said circuit means comprising: (1) input means for forming an electronic control signal defining the pattern, position, size and shape of the visual images to be formed as specified by a user; and (2) decoder means for decoding the electronic control signals to selectively activate said plurality of light emitting means to form the specified visual images.
Claim 2
Dependent Claim
108 words
An electronic display apparatus, comprising: (a) a disk member; (b) a plurality of light emitting means mounted with said disk member; (c) means for rotating said disk member; and (d) electronic control circuit means for selectively activating said plurality of light emitting means to selectively form differing visual images for viewing, said circuit means comprising: (1) input means for forming an electronic control signal defining the pattern, position, size and shape of the visual images to be formed as specified by a user; and (2) decoder means for decoding the electronic control signals to selectively activate said plurality of light emitting means to form the specified visual images.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1, wherein: said decoder means is mounted on said disk member with said plurality of light emitting means.
Claim 4
Dependent Claim
27 words
The apparatus of claim 1, wherein said input means further includes: means for adjusting the pattern of the image formed by said plurality of light emitting means.
Claim 5
Dependent Claim
27 words
The apparatus of claim 1, wherein said input means further includes: means for adjusting the position of the image formed by said plurality of light emitting means.
Claim 6
Dependent Claim
27 words
The apparatus of claim 1, wherein said input means further includes: means for adjusting the size of the image formed by said plurality of light emitting means.
Claim 7
Dependent Claim
27 words
The apparatus of claim 1, wherein said input means further includes: means for adjusting the shape of the image formed by said plurality of light emitting means.
Claim 8
Dependent Claim
27 words
The apparatus of claim 1, wherein said input means further includes: means for adjusting the density of the image formed by said plurality of light emitting means.
Claim 9
Dependent Claim
18 words
The apparatus of claim 1, further including: means for controlling the speed of rotation of said disk member.
Claim 10
Dependent Claim
21 words
The apparatus of claim 1, further including: means for synchronizing the rotation of said disk member with the specified visual image.
References Cited (Backward Citations)
US704513A
Cited
US1550036A
Cited
US1800054A
Cited
US1904901A
Cited
US1940500A
Cited
US3154636A
Cited
US3272506A
Cited
US3737647A
Cited
US3958235A
Cited
US4097917A
Cited
US4160973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |