Patent US5339091A successfully refreshed from Google Patents.
US5339091A
Expired / Lapsed
US
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Paperless portable book
Assignee: Semiconductor Energy Laboratory Co Ltd
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Filing: 1992-10-14
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Granted: 1994-08-16
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Expires: 2012-10-14
Abstract
Abstract A paperless portable electronic book is disclosed which is adapted for use with interchangeably magnetic floppy discs, or the like and comprises reproducing device for reading information from the floppy disc, a display and a battery. Preferentially, the display is a liquid crystal and the battery is an amorphous silicon solar cell.
Inventors
- 👤 Shunpei Yamazaki
- 👤 Toshiji Hamatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:33
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: 10
Claim 1
Independent Claim
178 words
A paperless book comprising: a first memory for storing information in encoded form; a reproducing device for reading information from said memory; a display means for visualizing said information; a temporary memory for temporarily storing data supplied thereto from said first memory where the amount of data which can be stored in the temporary memory is greater than the amount of data which can be displayed by said display means; a matrix array of sensors associated with said display means which can be actuated by a user to designate particular portions of a displayed page; emphasizing means connected to said temporary memory and said display means for receiving said user designations, for storing flags identifying the designated portions, and for modifying the appearance of said portions to visually highlight said portions during display on the display means; and reference retrieving means connected to the display means for receiving a user instruction to recall a selected page of text containing said designated portion and for causing immediate retrieval and display on the display means of the previously designated information.
Claim 2
Dependent Claim
178 words
A paperless book comprising: a first memory for storing information in encoded form; a reproducing device for reading information from said memory; a display means for visualizing said information; a temporary memory for temporarily storing data supplied thereto from said first memory where the amount of data which can be stored in the temporary memory is greater than the amount of data which can be displayed by said display means; a matrix array of sensors associated with said display means which can be actuated by a user to designate particular portions of a displayed page; emphasizing means connected to said temporary memory and said display means for receiving said user designations, for storing flags identifying the designated portions, and for modifying the appearance of said portions to visually highlight said portions during display on the display means; and reference retrieving means connected to the display means for receiving a user instruction to recall a selected page of text containing said designated portion and for causing immediate retrieval and display on the display means of the previously designated information.
Claim 3
Dependent Claim
14 words
A paperless book of claim 1 wherein said first memory is an optical disc.
Claim 4
Dependent Claim
14 words
A paperless book of claim 1 wherein said first memory is a floppy disc.
Claim 5
Dependent Claim
11 words
A paperless book of claim 1 further comprising a solar cell.
Claim 6
Dependent Claim
15 words
A paperless book of claim 1 further comprising a lid provided with a solar cell.
Claim 7
Dependent Claim
181 words
A paperless book comprising: an optical disk for storing information in encoded form; a reproducing device for reading information from said optical disk; a liquid crystal display means for visualizing said information; a temporary memory for temporarily storing data supplied thereto from said optical disk where the amount of data which can be stored in the temporary memory is greater tan the amount of data which can be displayed by said display means; a matrix array of sensors associated with said display means which can be actuated by a user to designate particular portions of a displayed page; emphasizing means connected to said temporary memory and said display means for receiving said user designations, for storing flags identifying the designated portions, and for modifying the appearance of said portions to visually highlight said portions during display on the display means; and reference retrieving means connected to the display means for receiving a user instruction to recall a selected page of text containing said designated portion and for causing immediate retrieval and display on the display means of the previously designated information.
Claim 8
Dependent Claim
181 words
A paperless book comprising: an optical disk for storing information in encoded form; a reproducing device for reading information from said optical disk; a liquid crystal display means for visualizing said information; a temporary memory for temporarily storing data supplied thereto from said optical disk where the amount of data which can be stored in the temporary memory is greater tan the amount of data which can be displayed by said display means; a matrix array of sensors associated with said display means which can be actuated by a user to designate particular portions of a displayed page; emphasizing means connected to said temporary memory and said display means for receiving said user designations, for storing flags identifying the designated portions, and for modifying the appearance of said portions to visually highlight said portions during display on the display means; and reference retrieving means connected to the display means for receiving a user instruction to recall a selected page of text containing said designated portion and for causing immediate retrieval and display on the display means of the previously designated information.
Claim 9
Dependent Claim
11 words
A paperless book of claim 6 further comprising a solar cell.
Claim 10
Dependent Claim
15 words
A paperless book of claim 6 further comprising a lid provided with a solar cell.
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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) | 1997-08-15 | 1998-02-14 | 1998-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-15 | 2002-02-14 | 2002-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-15 | 2006-02-14 | 2006-08-16 | $7700.00 | Window Closed / Lapsed |