Information retrieval device for displaying and directly refresh

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G06F 1500

Patent

active

055111602

ABSTRACT:
An information retrieval device displays portions of a document requested by a user. The information retrieval device has a controller connected to a display screen, input selector switches, such as buttons, and non-volatile memory, such as a removable ROM. One or more documents, such as a book or magazine, is stored in the non-volatile memory. When the device is turned on, a first portion of a document is displayed on a display screen. When the user wants to see a different portion of the document, or a different document altogether, she presses one of the buttons. Upon detection that a button was enabled, an action is performed that changes the display on the display screen. The action performs can vary in complexity: it may simply cause the next page of the document to be displayed, or may execute a nested hypertext link to cause related information contained in the same or a different document to update only a portion of the display screen. The document is stored on the non-volatile memory in a manner that allows the display screen to be refreshed directly from the non-volatile memory.

REFERENCES:
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patent: 5268963 (1993-12-01), Monroe et al.
patent: 5297249 (1994-03-01), Bernstein et al.
patent: 5325483 (1994-06-01), Ise et al.
patent: 5333237 (1994-07-01), Stefanopoulos
patent: 5355472 (1994-10-01), Lewis
patent: 5392447 (1995-02-01), Schlack et al.

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