Global Patent Index - EP 1159664 A1

EP 1159664 A1 2001-12-05 - ELECTRONIC DATA STORAGE AND DISPLAY APPARATUS

Title (en)

ELECTRONIC DATA STORAGE AND DISPLAY APPARATUS

Title (de)

VORRICHTUNG ZUR SPEICHERUNG UND WIEDERGABE VON NUMERISCHEN DATEN

Title (fr)

APPAREIL ELECTRONIQUE A MEMOIRE ET AFFICHAGE DE DONNEES

Publication

EP 1159664 A1 (EN)

Application

EP 99962298 A

Priority

  • GB 9904219 W
  • GB 9828093 A

Abstract (en)

[origin: WO0038035A1] Apparatus for displaying electronic format data is disclosed. It is particularly useful for displaying text material, e.g. as an electronic book. The apparatus has a casing with a display means such as a screen, and a data transmission/reception means enabling the apparatus to communicate with a source of data and to download data from the source for subsequent display. The data is encrypted for the download and decrypted within the apparatus to enable it to be displayed in clear. The distinctive feature of the invention is the use as an encryption/decryption key of data stored in addresses of a read only memory within the apparatus. Each time data is downloaded from the source, fresh addresses can be specified by the source, providing encryption/decryption keys for the next download session. This gives a very high degree of security as the keys themselves do not have to be transmitted.

IPC 1-7 (main, further and additional classification)

G06F 1/00; G06F 12/14; G06F 15/02

IPC 8 full level (invention and additional information)

G06F 1/00 (2006.01); G06F 12/14 (2006.01); G06F 21/10 (2013.01)

CPC (invention and additional information)

G06F 12/1408 (2013.01); G06F 21/10 (2013.01); G06F 2211/007 (2013.01); G06F 2221/0797 (2013.01)

Citation (search report)

See references of WO 0038035A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0038035 A1 20000629; AU 1867700 A 20000712; CA 2355713 A1 20000629; EP 1159664 A1 20011205; GB 0117025 D0 20010905; GB 2363649 A 20020102; GB 9828093 D0 19990217; ZA 200105908 B 20020221

INPADOC legal status


2008-08-01 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Document: HK 1038804

2007-01-10 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060701

2001-12-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010709

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-12-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI