US4819078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic print board system
Assignee: Oki Electric Industry Co Ltd
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Filing: 1987-12-15
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Granted: 1989-04-04
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Expires: 2007-12-15
Abstract
Abstract An electronic print board system includes a drawing medium on which images can be erasably written manually, an external input device for supplying external image data, a writer device for erasably writing images on the drawing medium corresponding to the external image data received from the external input device, a device for reading images on the drawing medium and producing output image data corresponding thereto, a device for printing images on a recording medium corresponding to the output image data from the reader device, and a control device for selectively causing the writer device to write images on the drawing medium corresponding to the external image data received from the external input device and for selectively causing the printer device to print images on the recording medium corresponding to the output image data received from the reader device.
Inventors
- 👤 Joji Tadokoro
- 👤 Matsusaburo Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:42
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00127; H04N1/00326; H04N1/04; H04N1/12; H04N1/1255; H04N1/23; H04N1/32; H04N1/32502; H04N1/32507; H04N1/32512; H04N1/32523; H04N1/32529; H04N1/387; H04N1/3871; H04N1/00204; H04N2201/00; H04N2201/0077; H04N2201/0081; H04N2201/0082; H04N2201/0086; H04N2201/0087; H04N2201/04; H04N2201/0402; H04N2201/0438
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
An electronic print board system, comprising: a drawing medium on which images can be erasably written manually; input means for supplying image data; writer means for erasably writing images on said drawing medium corresponding to the image data received from said input means; means for reading images on said drawing medium and producing output image data corresponding thereto; means for printing images on a recording medium corresponding to the output image data from said means for reading; and control means for selectively causing said writer means to write images on said drawing medium corresponding to the image data received from said input means and for selectively causing said means for printing to print images on said recording medium corresponding to the output image data received from said means for reading.
Claim 2
Dependent Claim
130 words
An electronic print board system, comprising: a drawing medium on which images can be erasably written manually; input means for supplying image data; writer means for erasably writing images on said drawing medium corresponding to the image data received from said input means; means for reading images on said drawing medium and producing output image data corresponding thereto; means for printing images on a recording medium corresponding to the output image data from said means for reading; and control means for selectively causing said writer means to write images on said drawing medium corresponding to the image data received from said input means and for selectively causing said means for printing to print images on said recording medium corresponding to the output image data received from said means for reading.
Claim 3
Dependent Claim
30 words
An electronic print board system according to claim 1 wherein said drawing medium comprises a first layer permitting manual writing, and a second layer permitting writing by said writer means.
Claim 4
Dependent Claim
30 words
An electronic print board system according to claim 1, further comprising data memory means for storing the image data supplied from said input means and from said means for reading.
Claim 5
Dependent Claim
31 words
An electronic print board system according to claim 1, further comprising a compression processor for compressing several screens of images from said input means and combining into a single screen image.
Claim 6
Dependent Claim
32 words
An electronic print board system according to claim 1, wherein said input means comprises an optical reader for reading a document and producing image data corresponding to the contents of the document.
Claim 7
Dependent Claim
34 words
An electronic print board system according to claim 2, wherein said second layer is a photochromic function layer which contains an optical recording substance; and said writer means comprises an array of light-emitting diodes.
Claim 8
Dependent Claim
36 words
An electronic print board system according to claim 2, wherein said second layer is a heat reversible layer which changes its color depending on its temperature; and said writer means comprises an array of thermal dots.
Claim 9
Dependent Claim
32 words
An electronic print board system according to claim 3, wherein said control means also causes said writer means to write images corresponding to the image data stored in said data memory means.
Claim 10
Dependent Claim
33 words
An electronic print board system according to claim 4, wherein said control means also causes said writer means to write images corresponding to said single screen of image data from said compression processor.
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) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |