Patent US4670794A successfully refreshed from Google Patents.
US4670794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic print board
Assignee: Oki Electric Industry Co Ltd
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Filing: 1985-05-30
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Granted: 1987-06-02
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Expires: 2005-05-30
Abstract
Abstract An electronic print board is provided with an endless or continuous writing medium, on which a transparent sheet-shaped writing medium (3) is removably mounted. Any characters and figures written on both the writing media are combined, scaled down, and copied on recording paper by means of a recording device. In addition, another document can be inserted between the two writing media. Thus, the characters and figures written on the document and the transparent writing medium can be combined, scaled down, and copied on the recording paper by means of the recording device.
Inventors
- 👤 Seiji Araki
- 👤 Joji Tadokoro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:22
CPC Classifications
B; B43; B43L; B43L1/00; H; H04; H04N; H04N1/00; H04N1/00567; H04N1/0057; H04N1/00599; H04N1/0061; B43L1/04; B43L1/08; B43L5/00; B43L5/02; B43L5/025; H04N1/04; H04N1/12; H04N1/1255; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0422
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
259 words
An electronic print board, comprising: a housing having an opening formed therein; a driving roller and a supporting roller rotatably mounted to said housing; an opaque parent sheet formed of a material receptive of picture images which are easily erased therefrom, trained over said driving roller and said supporting roller so as to be movable by said driving roller on said housing; a transparent sheet on said parent sheet, said transparent sheet being formed of a material receptive of picture images which are easily erased therefrom; means, including a light source and a lens, for reflecting light from said light source off of said writing medium and through said lens to form a reduced scale image of a combined picture image on said parent sheet and said transparent sheet, said parent sheet and transparent sheet being exposed to the reflected light through said opening; a readout sensor, disposed so as to receive said reduced scale image, said sensor including means, responsive to said reduced scale image, for providing a readout picture image; recording means, connected to said readout sensor and responsive to said readout picture image, for recording a picture image on a recording paper; and means for detachably and reattachably attaching said transparent sheet on said parent sheet, said transparent sheet including means for releasable holding a document between said transparent sheet and said parent sheet so that the light from said light source is reflected off of a combined picture image formed of a picture image on said transparent sheet and a picture image on the document.
Claim 2
Dependent Claim
259 words
An electronic print board, comprising: a housing having an opening formed therein; a driving roller and a supporting roller rotatably mounted to said housing; an opaque parent sheet formed of a material receptive of picture images which are easily erased therefrom, trained over said driving roller and said supporting roller so as to be movable by said driving roller on said housing; a transparent sheet on said parent sheet, said transparent sheet being formed of a material receptive of picture images which are easily erased therefrom; means, including a light source and a lens, for reflecting light from said light source off of said writing medium and through said lens to form a reduced scale image of a combined picture image on said parent sheet and said transparent sheet, said parent sheet and transparent sheet being exposed to the reflected light through said opening; a readout sensor, disposed so as to receive said reduced scale image, said sensor including means, responsive to said reduced scale image, for providing a readout picture image; recording means, connected to said readout sensor and responsive to said readout picture image, for recording a picture image on a recording paper; and means for detachably and reattachably attaching said transparent sheet on said parent sheet, said transparent sheet including means for releasable holding a document between said transparent sheet and said parent sheet so that the light from said light source is reflected off of a combined picture image formed of a picture image on said transparent sheet and a picture image on the document.
Claim 3
Dependent Claim
230 words
An electronic print board, comprising: a housing; a driving roller and a supporting roller rotatably mounted to said housing; an opaque parent sheet trained over said driving roller and said supporting roller so as to be movable by said driving roller and said housing; a transparent sheet on said parent sheet, said transparent sheet being formed of a material receptive of picture images which are easily erased therefrom; means, including a light source and a lens, for reflecting light from said light source off of said parent sheet and said transparent sheet and through said lens to form a reduced scale image of a combined picture image on said parent sheet and said transparent sheet; a readout sensor, disposed so as to receive said reduced scale image, said sensor including means, responsive to said reduced scale image, for providing a readout picture image, recording means, connected to said readout sensor and responsive to said readout picture image, for recording a picture image on a recording paper; and means for detachably and reattachably attaching said transparent sheet to said parent sheet, said transparent sheet including means for releasable holding a document between said transparent sheet and said parent sheet so that the light from said light source is reflected off of a combined picture image formed of a picture image on said transparent sheet and a picture image on the document.
Claim 4
Dependent Claim
230 words
An electronic print board, comprising: a housing; a driving roller and a supporting roller rotatably mounted to said housing; an opaque parent sheet trained over said driving roller and said supporting roller so as to be movable by said driving roller and said housing; a transparent sheet on said parent sheet, said transparent sheet being formed of a material receptive of picture images which are easily erased therefrom; means, including a light source and a lens, for reflecting light from said light source off of said parent sheet and said transparent sheet and through said lens to form a reduced scale image of a combined picture image on said parent sheet and said transparent sheet; a readout sensor, disposed so as to receive said reduced scale image, said sensor including means, responsive to said reduced scale image, for providing a readout picture image, recording means, connected to said readout sensor and responsive to said readout picture image, for recording a picture image on a recording paper; and means for detachably and reattachably attaching said transparent sheet to said parent sheet, said transparent sheet including means for releasable holding a document between said transparent sheet and said parent sheet so that the light from said light source is reflected off of a combined picture image formed of a picture image on said transparent sheet and a picture image on the document.
Claim 5
Dependent Claim
27 words
An electric print board as in claim 2, wherein said transparent sheet is receptive of and permits easy erasure of picture images formed with a felt pen.
Claim 6
Dependent Claim
14 words
An electronic print board according to claim 2, wherein said writing medium is endless.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-01 | 1990-12-01 | 1991-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-01 | 1994-12-01 | 1995-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-01 | 1998-12-01 | 1999-06-02 | $7700.00 | Window Closed / Lapsed |