Information retrieval device for displaying and directly refreshing the display of a dynamically modifiable document

A receiver for receiving a document from a transmitter:

• memory for storing said document received by said receiver;
• a plurality of input selector switches;
• a display screen;
• controller circuitry connected to said memory, said input selector switches, and said display screen, said controller circuitry determining which portion of said document to display on said display screen, responsive to said plurality of input selector switches;
• said controller circuitry refreshing said display screen directly from said memory, said controller circuitry further comprising:
• a microcontroller cell;
• an object register for storing a plurality of hypertext object states;
• and
• a switch selection register for storing a current switch status.

An information retrieval device for displaying a document, comprising:

• a receiver for receiving said document from a transmitter;
• memory for storing said document;
• a display for displaying said document;
• and
• means for refreshing said display directly from said memory.

An information retrieval device for displaying a hypertext document, comprising:

• a receiver for receiving said hypertext document from a transmitter;
• memory for storing said hypertext document as initial state data, a state machine, and a plurality of document portions;
• and
• display for displaying said hypertext document.

A method for generating and displaying a dynamically modifiable document on a display screen, comprising the steps of:

• receiving a document transmitted by a receiver;
• storing said document in memory;
• reading initial state data from said memory;
• determining a first display state from said initial state data;
• displaying on said display screen a first portion of said document from a first document portion of said memory corresponding to said first display state;
• and
• refreshing said display screen directly from said memory.

A method of generating and storing a dynamically modifiable document on a memory used by an information retrieval device, said memory pluggable into said information retrieval device, said method comprising:

• generating a first document, further comprising the steps of:
• generating a first section addressable by said information retrieval device, said first section comprising initial state data;
• generating a second section addressable by said information retrieval device, said second section comprising said state machine;
• generating a third section addressable by said information retrieval device, said third section comprising a first portion of said document;
• generating a fourth section addressable by said information retrieval device, said fourth section comprising a second portion of said document;
• generating in said first section a pointer to said state machine;
• generating in said first section a pointer to said first portion of said document;
• generating in said state machine a pointer to said first portion of said document for display by said information retrieval device when in a first display state;
• and
• generating in said state machine a pointer to said second portion of said document for display by said information retrieval device when in a second display state;
• transmitting said first document to a receiver;
• said receiver receiving said first document;
• storing said first document in memory.