Back to results
US 5,339,091 AGranted
Paperless portable book
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei Yamazaki, Toshiji Hamatani
Life of this patent
Estimating the term…
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.
Claims8
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.
5 more elements
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.
5 more elements
Dependencies are inferred from the claim text.