US4884146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image display system
Assignee: Sharp Corp
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Filing: 1988-07-14
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Granted: 1989-11-28
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Expires: 2008-07-14
Abstract
Abstract An image display system includes an image reading device for reading information. This image display system is capable of displaying the information read by the image reading device. The system also allows the writing of information onto a display board. The information being displayed can be copied for outputting to a printer or a word processor for printing a hardcopy or storing onto a magnetic medium, respectively.
Inventors
- 👤 Kenroh Yatsunami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:24
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/375; B; B82; B82Y; B82Y15/00; G02; G02F; G02F1/00; G02F1/01; G02F1/09; G02F1/094
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
93 words
An image display system having a display board, comprising: information reading means for reading information; information display means for displaying said information read by said information reading means; and copying means for producing an output representing said information being displayed on said information display means; said information display means including, information writing means for writing information onto the display board, and information erasing means for erasing information from the display board, said information erasing means preceding said information writing means with respect to a direction for writing said information onto the display board.
Claim 2
Dependent Claim
93 words
An image display system having a display board, comprising: information reading means for reading information; information display means for displaying said information read by said information reading means; and copying means for producing an output representing said information being displayed on said information display means; said information display means including, information writing means for writing information onto the display board, and information erasing means for erasing information from the display board, said information erasing means preceding said information writing means with respect to a direction for writing said information onto the display board.
Claim 3
Dependent Claim
20 words
The image display system as claimed in claim 1, wherein said information display means is a magnetic migration display system.
Claim 4
Dependent Claim
58 words
The image display system as claimed in claim 1, wherein said information recording means and said information reading means are positioned on a same surface side of said information display means; and said information erasing means being positioned on a surface side of said information display means opposite of said information recording means and said information reading means.
Claim 5
Dependent Claim
62 words
An image display system having a display board, comprising; information display means for displaying information; information recording means for writing information onto said information display means; and information erasing means, provided at a position preceding said information recording means with respect to a direction for writing said information onto the display board, for erasing said information displayed on said information display means.
Claim 6
Dependent Claim
62 words
An image display system having a display board, comprising; information display means for displaying information; information recording means for writing information onto said information display means; and information erasing means, provided at a position preceding said information recording means with respect to a direction for writing said information onto the display board, for erasing said information displayed on said information display means.
Claim 7
Dependent Claim
20 words
The image display system as claimed in claim 4, wherein said information display means is a magnetic migration display system.
Claim 8
Dependent Claim
31 words
The image display system as claimed in claim 4, wherein said information erasing means being positioned on a surface side of said information display means opposite of said information recording means.
Claim 9
Dependent Claim
79 words
An image display system having a display board, comprising: information display means for displaying information; information recording means for writing information on said information display means; information reading means for reading the information written on said information display means; and information erasing means for erasing the information written on said information display means; said information erasing means being arranged in a position preceding said information recording means with respect to a direction for writing information onto the display board.
Claim 10
Dependent Claim
79 words
An image display system having a display board, comprising: information display means for displaying information; information recording means for writing information on said information display means; information reading means for reading the information written on said information display means; and information erasing means for erasing the information written on said information display means; said information erasing means being arranged in a position preceding said information recording means with respect to a direction for writing information onto the display board.
Claim 11
Dependent Claim
53 words
The image display system as claimed in claim 7, wherein said information recording means and said information reading means are provided on a same surface side of said information display means; and said information erasing means being provided on a surface side of said information display means opposite of said information recording means.
Claim 12
Dependent Claim
20 words
The image display system as claimed in claim 7, wherein said information display means is a magnetic migration display system.
Claim 13
Dependent Claim
58 words
The image display system as claimed in claim 7, wherein said information recording means and said information reading means are positioned on a same surface side of said information display means; and said information erasing means being positioned on a surface side of said information display means opposite of said information reading means and said image reading means.
Claim 14
Dependent Claim
76 words
An image display system having a display board, comprising: information display means for displaying information; information recording means for writing information on said information display means; information reading means for reading the information written on said information display means; and information erasing means for erasing the information written on said information display means; said information recording means, said information reading means, and said information erasing means being arranged to simultaneously scan over said information display means.
Claim 15
Dependent Claim
76 words
An image display system having a display board, comprising: information display means for displaying information; information recording means for writing information on said information display means; information reading means for reading the information written on said information display means; and information erasing means for erasing the information written on said information display means; said information recording means, said information reading means, and said information erasing means being arranged to simultaneously scan over said information display means.
Claim 16
Dependent Claim
57 words
The image display system as claimed in claim 11, wherein said information recording and said information reading means are positioned on a same surface side of said information display means; and said information erasing means being positioned on a surface side of said information display means opposite of said information recording means and said image reading means.
Claim 17
Dependent Claim
99 words
An image display system comprising: image display means for displaying image information; image recording means for writing image information on said image display means; image reading means for reading the image information written on said image display means; and image erasing means for erasing the image information written on said image display means; said image information being displayed and erased on said display means by causing magnetic particles located in said image display means to migrate upon application of magnetic forces to said image display means and being manually written upon said image display means by a hand-writing device.
Claim 18
Dependent Claim
99 words
An image display system comprising: image display means for displaying image information; image recording means for writing image information on said image display means; image reading means for reading the image information written on said image display means; and image erasing means for erasing the image information written on said image display means; said image information being displayed and erased on said display means by causing magnetic particles located in said image display means to migrate upon application of magnetic forces to said image display means and being manually written upon said image display means by a hand-writing device.
Claim 19
Dependent Claim
17 words
The image display system as claimed in claim 13, wherein said hand-writing device is a felt-tipped pen.
Claim 20
Dependent Claim
57 words
The image display system as claimed in claim 13, wherein said image recording and said image reading means are positioned on a same surface side of said image display means; and said image erasing means being positioned on a surface side of said image display means opposite of said image recording means and said image reading means.
Claim 21
Independent Claim
77 words
A method for disseminating information from a display board, comprising the steps of: (a) reading information from an original document; (b) erasing the display board with a magnetic erasing device; and (c) writing the information read in said step (a) on the display board with a magnetic writing device during the erasing process being carried out in said step (b) such that steps (b) and (c) are carried out in a single scan of the display board.
Claim 22
Independent Claim
77 words
A method for disseminating information from a display board, comprising the steps of: (a) reading information from an original document; (b) erasing the display board with a magnetic erasing device; and (c) writing the information read in said step (a) on the display board with a magnetic writing device during the erasing process being carried out in said step (b) such that steps (b) and (c) are carried out in a single scan of the display board.
Claim 23
Dependent Claim
43 words
The method as claimed in claim 16 further comprising the steps of: (d) copying the information written on the display board; and (e) outputting the information copied in said step (d) to a device which stores the copied information on a magnetic medium.
Claim 24
Dependent Claim
29 words
The method as claimed in claim 17 further comprising the step of: (f) writing additional information with a felt-tipped marker onto the display board after executing said step (c).
Claim 25
Dependent Claim
29 words
The method as claimed in claim 17 further comprising the step of: (f) writing additional information with a felt-tipped marker onto the display board after executing said step (c).
Claim 26
Dependent Claim
43 words
The method as claimed in claim 16 further comprising the steps of: (d) copying the information written on the display board; and (e) outputting the information copied in said step (d) to a device which produces a hard copy of the copied information.
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) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |