Electronic book

• US 4,159,417 A
• Filed: 10/28/1977
• Issued: 06/26/1979
• Est. Priority Date: 10/28/1977
• Status: Expired due to Term

• Current Assignee: Empruve Incorporated
• Original Assignee: David P. Rubincam
• Inventors: Rubincam, David P.
• Primary Examiner(s): Cook, Daryl W.
• Application Number:
  US05/846,554
• Time in Patent Office: 606 Days
• Field of Search: 235/457, 235/454, 360/216, 360/94, 360/108, 340/366 R, 340/366 A, 340/366 B, 350/3.69, 350/3.71, 350/DIG. 1, 350/3.75, 250/329, 353/68, 353/71, 353/26 R, 353/27 R, 365/94, 365/216
• US Class Current: 235/375
• CPC Class Codes: G03H 1/30 discrete holograms only
• CPC Class Codes: G03H 2001/2215 Plane screen
• CPC Class Codes: G03H 2001/2218 being perpendicular to optical axis
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor
• CPC Class Codes: Y10S 345/901 Electronic book with display

Abstract

The contents of a book, magazine or the like are digitally encoded onto a memory, and the memory is removably insertable into a portable book-like apparatus whereby the encoded information can be displayed on a screen of the apparatus.

Claims

1. In apparatus including a digital memory, a sensor for sensing information from the memory, logic circuitry operatively coupled with the sensor, and a display in operative relationship with the logic circuitry for visually displaying information stored in the memory, the improvement comprising:

a portable container containing said memory, sensor, logic circuitry and display and defining an opening for receiving said digital memory; and

control means in operative relationship with said logic circuitry for enabling an operator of the apparatus to control the information displayed;

said memory including a substantially rigid card containing a matrix of holograms and wherein said holograms contain binary bits of information.

2. Apparatus as in claim 1 wherein said binary bits include encoded character information which is displayed as words on said display.

3. Apparatus as in claim 2 wherein the entire contents of a book are encoded on said card.

4. Apparatus as in claim 3 wherein said display includes liquid crystal means in operative relationship with logic circuitry for displaying said information.

5. Apparatus as in claim 4 wherein said container includes first and second sections hingedly connected to each other in the manner of a book.

6. Apparatus as in claim 5 wherein said display includes first and second sections, the first section of said display being positioned in said first container section and the second section of said display being positioned in said second container section.

7. Apparatus as in claim 6 further including means in operative relationship with said first and second container sections for holding said sections in a closed position.

8. Apparatus as in claim 4 further including a cover member hingedly connected to said container for covering said display when the cover is in a closed position and the apparatus is not in use.

9. Apparatus as in claim 4 further including cover means for covering and protecting said display when the apparatus is not in use.

10. Apparatus as in claim 4 further including:

an additional container defining a base and a cover and holding said portable container; and

arm means in operative relationship with said container for enabling said portable container to move into a substantially upright position from a substantially horizontal position when the cover of said additional container is opened.

11. Apparatus as in claim 10 wherein said arm means include:

a first arm member pivotally connected at one end thereof to said base and pivotally connected at the other end thereof to said portable container;

a second arm member pivotally connected at a first end thereof to said base;

a third arm member pivotally connected at a first end thereof to said cover and pivotally connected at a second end thereof to a second end of said second arm member; and

a fourth arm member pivotally connected at a first end thereof to said first arm member and at a second end thereof to said second arm member.

12. Apparatus as in claim 11 wherein said first arm member is shorter than said second arm member.

13. In apparatus including a digital memory for storing readable information in digitally encoded form, a sensor for sensing information from the memory, logic circuitry operatively coupled with the sensor for decoding the digitally encoded information into readable information, and a display in operative relationship with the logic circuitry for visually displaying the readable information, the improvement comprising:

a portable container containing said memory, sensor, logic circuitry and display and defining an opening for receiving said digital memory; and

control means in operative relationship with said logic circuitry for enabling an operator of the apparatus to control the information displayed.

14. Apparatus as in claim 13 wherein said opening is positioned to enable insertion of said memory into operative relationship with said sensor and to enable removal of said memory from said container.