Abstract: A web browser system includes a mobile communication terminal configured to implement decoding and parsing for HTML and CSS binary files, execute a JavaScript bytecode, decode an image file, and implement rendering for respective results, for web browsing of a web browser built therein; a proxy server configured to, in correspondence to a web address transmitted thereto, transmit a page access command to a web server of the corresponding web address via a wired network, implement grammar indentifying binary encoding for HTML and CSS transmitted from the web server to decrease capacity, convert quality for an image file to decrease capacity, compile JavaScript into a bytecode to decrease capacity, and transmit those files to the mobile communication terminal via a wireless network; and a web server configured to transmit files constituting a web page including the HTML, CSS, JavaScript and image files, to the proxy server.

Abstract: An advertisement linkage system of a mobile communication terminal, using a proxy server, includes a mobile communication terminal configured to be inputted with a web address from a user on a web browser built therein, transmit the web address to a proxy server via a wireless network, and display web contents and an advertisement received from the proxy server on a display; the proxy server configured to receive the web address from the terminal, transmit a web page access command to a web server via a wide bandwidth wired network, extract keywords from web contents received from the web server, transmit extracted keywords to an advertisement server, and transmit the web contents and an advertisement received from the advertisement server to the terminal; and the advertisement server configured to search an advertisement most appropriate for the keywords received from the proxy server, and transmit the advertisement to the proxy server.