System, device and server for generating address data for part of contents in electronic book

An e-book system comprising:

• a first terminal configured selected characters from among a plurality of characters included in content of an e-book through an interface, process the selected characters as a first area, and request address data using ID values for the first area;
• an e-book server configured to receive the request from the first terminal, generate and register the address data, transmit the registered address data to the first terminal, determine whether address data transmitted from at least one terminal after the registered address data is transmitted matches the registered address data, and process an access of the at least one terminal to the first area according to a result of the determination;
• and
• a second terminal configured to receive the address data from the first terminal, access the first area of the e-book server on the basis of the address data, and output the first area on a screen thereof.

An e-book terminal comprising:

• an extraction unit configured to extract content included in an e-book;
• an ID value setting unit configured to individually classify a plurality of characters included in the content of the e-book and assign an ID value to each of the characters;
• an area processing unit configured to, when some of the content of the e-book is designated through an input unit of a system, process the designated content as a first area and check ID values for the first area;
• and
• an address data generation unit configured to generate address data for the first area with reference to the ID values for the first area.