US4587568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic print board
Assignee: Oki Electric Industry Co Ltd
•
Filing: 1984-03-12
•
Granted: 1986-05-06
•
Expires: 2004-03-12
Abstract
Abstract A pattern erasably written on a black board or a flexible sheet in a meeting is printed to a hard copy through scanning of the pattern by an image sensor which provides an electrical signal relating to the pattern, and printing the pattern on a paper according to said electrical signal. The present print board comprises a housing, a writing sheet or a black board mounted on said housing, an elongated lamp for illuminating an elongated portion of said sheet, an image sensor to provide an electrical signal relating to the pattern on a scanning line on the sheet illuminated by said lamp, means for relatively moving said image sensor to said sheet for full scanning of the pattern, and a printer for providing a hard copy of the pattern with smaller size than said pattern according to said electrical signal from said image sensor. The present print board has also a digital memory for storing the output of the image sensor for the late printing, and/or means for transmitting and receiving the pattern signal to and from a telephone line for a remote printing.
Inventors
- 👤 Shoichiro Takayama
- 👤 Yukio Suga
- 👤 Joji Tadokoro
- 👤 Yukinori Takeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:20
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/10; H04N1/1013; H04N1/1026; B; B43; B43L; B43L1/00; B43L1/004; B43L13/00; B43L13/14; B43L13/16; B43L13/18; H04N1/1017; H04N1/1039; H04N1/1043; H04N1/12; H04N1/1255; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N2201/00; H04N2201/0077; H04N2201/0082; H04N2201/04; H04N2201/0402; H04N2201/0438
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
140 words
An electronic print board comprising; (a) a housing, (b) a writing means mounted on said housing for receiving any pattern erasably written thereon with a pen means, (c) an elongated lamp for illuminating an elongated portion on said writing means, (d) an image sensor mounted in said housing to provide an electrical signal relating to the pattern on a scanning line which is illuminated by said lamp, (e) means for relatively moving said image sensor to said writing means for full scanning of the pattern on said writing means, (f) a printer for printing the pattern on said writing means with smaller size than said pattern according to said electrical signal from said image sensor, wherein said writing means is a flexible sheet which is movable by rotating a roller sandwiching said writing means, and said image sensor is fixed.
Claim 2
Dependent Claim
140 words
An electronic print board comprising; (a) a housing, (b) a writing means mounted on said housing for receiving any pattern erasably written thereon with a pen means, (c) an elongated lamp for illuminating an elongated portion on said writing means, (d) an image sensor mounted in said housing to provide an electrical signal relating to the pattern on a scanning line which is illuminated by said lamp, (e) means for relatively moving said image sensor to said writing means for full scanning of the pattern on said writing means, (f) a printer for printing the pattern on said writing means with smaller size than said pattern according to said electrical signal from said image sensor, wherein said writing means is a flexible sheet which is movable by rotating a roller sandwiching said writing means, and said image sensor is fixed.
Claim 3
Dependent Claim
28 words
An electronic print board according to claim 1, wherein said pen uses an erasable ink which is erased by illuminating the pattern with a light beam, or friction.
Claim 4
Dependent Claim
18 words
An electronic print board according to claim 1, wherein a rigid cardboard is provided behind said flexible sheet.
Claim 5
Dependent Claim
25 words
An electric print board according to claim 1, wherein means for transmitting said electrical signal to a remote terminal through a telephone line is provided.
Claim 6
Dependent Claim
39 words
An electronic print board according to claim 1, wherein a digital memory for storing said pattern is provided so that late printing is possible by reading out content of said memory and applying read out signal to said printer.
Claim 7
Dependent Claim
35 words
An electronic print board according to claim 1, wherein a light shield panel is provided between said lamp and said image sensor so that direct beam from the lamp to the image sensor is prevented.
Claim 8
Dependent Claim
16 words
An electronic print board according to claim 1, further comprising a castor fixed to said housing.
Claim 9
Dependent Claim
24 words
An electronic print board according to claim 1, wherein said flexible sheet is made of plastics, and said pen means is a felt pen.
Claim 10
Dependent Claim
19 words
An electronic print board according to claim 8, wherein said flexible sheet is in the shape of endless loop.
Claim 11
Dependent Claim
138 words
An electronic print board comprising; (a) a housing, (b) a writing means mounted on said housing for receiving any pattern erasably written thereon with a pen means, (c) an elongated lamp for illuminating an elongated portion on said writing means, (d) an image sensor mounted in said housing to provide an electrical signal relating to the pattern on a scanning line which is illuminated by said lamp, (e) means for relatively moving said image sensor to said writing means for full scanning of the pattern on said writing means, (f) a printer for printing the pattern on said writing means with smaller size than said pattern according to said electrical signal from said image sensor, wherein said writing means is a black board, said pen means is a chalk and said image sensor moves along said black board.
Claim 12
Dependent Claim
138 words
An electronic print board comprising; (a) a housing, (b) a writing means mounted on said housing for receiving any pattern erasably written thereon with a pen means, (c) an elongated lamp for illuminating an elongated portion on said writing means, (d) an image sensor mounted in said housing to provide an electrical signal relating to the pattern on a scanning line which is illuminated by said lamp, (e) means for relatively moving said image sensor to said writing means for full scanning of the pattern on said writing means, (f) a printer for printing the pattern on said writing means with smaller size than said pattern according to said electrical signal from said image sensor, wherein said writing means is a black board, said pen means is a chalk and said image sensor moves along said black board.
Claim 13
Dependent Claim
25 words
An electronic print board according to claim 10, wherein means for transmitting said electrical signal to a remote terminal through a telephone line is provided.
Claim 14
Dependent Claim
39 words
An electronic print board according to claim 10, wherein a digital memory for storing said pattern is provided so that late printing is possible by reading out content of said memory and applying read out signal to said printer.
Claim 15
Dependent Claim
35 words
An electronic print board according to claim 10, wherein a light shield panel is provided between said lamp and said image sensor so that direct beam from the lamp to the image sensor is prevented.
Claim 16
Dependent Claim
16 words
An electronic print board according to claim 10, further comprising a castor fixed to said housing.
References Cited (Backward Citations)
US4449152A
Cited
US4486787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |