EP0252646A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Paperless portable book
Assignee: Semiconductor Energy Laboratory Co Ltd
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Filing: 1987-06-23
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Granted: —
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Expires: 2007-06-23
Abstract
Abstract A paperless portable electronic book is disclosed which is adapted for use with interchangeable magnetic floppy discs, optical discs or the like and comprises a reproducing device for reading information from the floppy disc, a display and a battery. Preferentially, the display is a liquid crystal display and the battery is an amorphous silicon solar cell.
Inventors
- 👤 Shunpei Yamazaki
- 👤 Toshiji Hamatani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 09:52
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/74; G11B33/00; G11B33/12; G11B33/121; B; B42; B42D; B42D1/00; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1626; G06F1/1633; G06F1/1635; G06F1/1637; G06F1/1643; G06F1/1675; G06F1/1677; G09; G09B; G09B5/00; G09B5/02; G11B31/00; G11B33/02; G11B33/06; G11B33/10; G06F2200/00; G06F2200/16; G06F2200/161; G06F2200/1614; G06F2200/163; G06F2200/1634; Y; Y10; Y10S; Y10S345/00; Y10S345/901
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
30 words
A portable paperless book comprising: an electronic memory for storing information in encoded form; a reproducing device for reading information from said memory; and a display for visualizing said information.
Claim 2
Dependent Claim
30 words
A portable paperless book comprising: an electronic memory for storing information in encoded form; a reproducing device for reading information from said memory; and a display for visualizing said information.
Claim 3
Dependent Claim
13 words
A book according to claim 1 wherein said memory is a floppy disc.
Claim 4
Dependent Claim
13 words
A book according to claim 1 wherein said memory is an optical disc.
Claim 5
Dependent Claim
19 words
A book according to any preceding claim wherein said reproducing device and said display are integrated into a unit.
Claim 6
Dependent Claim
21 words
A book according to claim 4 further comprising a solar cell for supplying the power necessary for driving the integrated unit.
Claim 7
Dependent Claim
18 words
A book according to claim 5 wherein said solar cell is made of a non-single-crystalline silicon semiconductor material.
Claim 8
Dependent Claim
28 words
A book according to claim 5 or 6 wherein said solar cell comprises a transparent substrate, a photoelectric conversion layer, and transparent electrode arrangement for said solar cell.
Claim 9
Dependent Claim
25 words
A book according to claim 5 or 6 or 7 wherein said solar cell is provided in the form of a lid for said unit.
Claim 10
Dependent Claim
28 words
A book according to claim 8 wherein said solar cell is adapted to receive sun light from both the upper side and the lower side of said lid.
Claim 11
Dependent Claim
102 words
A portable paperless book comprising, in an integrated unit generally in the shape of a book, a reader for a magnetic floppy disc optical disc or other interchangeable compact digital storge medium, a procesor, an input facility operable to cause said processor to selectively process information retrieved from the digital storage medium, display means for displaying such information, and a solar cell for powering the unit, the unit comprising a body portion and a cover portion hingedly connected thereto and the display means being provided in one of said portions and the solar cell being provided in the other of said portions.
Claim 12
Dependent Claim
102 words
A portable paperless book comprising, in an integrated unit generally in the shape of a book, a reader for a magnetic floppy disc optical disc or other interchangeable compact digital storge medium, a procesor, an input facility operable to cause said processor to selectively process information retrieved from the digital storage medium, display means for displaying such information, and a solar cell for powering the unit, the unit comprising a body portion and a cover portion hingedly connected thereto and the display means being provided in one of said portions and the solar cell being provided in the other of said portions.
Claim 13
Dependent Claim
35 words
A portable information displaying device comprising: an electronic memory for storing information in encoded form; a reproducing device for reading information from said memory; a display for visualizing said information; and a photoelectric conversion device.
Claim 14
Dependent Claim
35 words
A portable information displaying device comprising: an electronic memory for storing information in encoded form; a reproducing device for reading information from said memory; a display for visualizing said information; and a photoelectric conversion device.
References Cited (Backward Citations)
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