Bidirectional information sharing system and method using wireless data network

A bidirectional information sharing system using a wireless data network, the system comprising:

• a mobile phone of a first user that transmits first sharing information to a mobile phone of a second user at the time of call connection to the mobile phone of the second user and receives second sharing information transmitted from the mobile phone of the second user and outputs the received second sharing information on a screen;
• and
• a mobile phone of a second user that transmits the second sharing information to the mobile phone of the first user at the time of call connection to the mobile phone of the first user and receives the first sharing information transmitted from the mobile phone of the first user and outputs the received first sharing information on a screen,
• wherein the first and second sharing information is set by the first user or the second user, and
• wherein the mobile phones of the first and second users include:
• a key input unit that generates an authorization signal and a key signal for a sharing information registration;
• a display unit that outputs a key operation status or the first or second sharing information transmitted from the mobile phone of the first or second user on the screen;
• a duplexer that performs a wireless communication with a base station of a mobile communication network through an antenna to separate transmitted and received signals;
• a wireless Internet interface that is included in the duplexer and accesses a wireless Internet server (WAP server) of a predetermined URL through a wireless Internet network in a software as a demon for a wireless Internet connection;
• a receiver that receives a voice signal or character or image information from the mobile phone of the first or second user or a wired telephone terminal or a mobile communication exchanger through the antenna and the duplexer;
• a transmitter that filters and amplifies the voice signal input from a microphone and transmits the voice signal;
• a voice processor that processes the voice signal from one of the first or second user received through the receiver and outputs the processed voice signal through a speaker and processes the voice signal of one of the first or second user received from the microphone and outputs the processed voice signal to the transmitter;
• a data storage unit that stores the first or second sharing information to be output on the screen and the first or second sharing information to be transmitted to one of the first or second user;
• a data updating unit that determines an output state for the first or second sharing information from the mobile phone of one of the first or second user and updates and outputs the first or second sharing information when being updated;
• a controller that manages the first or second sharing information mutually transmitted when the first and second users talk over the phone, performs a transmission process of the first or second sharing information, determines whether output conditions of the first or second sharing information are satisfied, selectively extracts the first or second sharing information to be output on the screen according to a setting and controls the extracted first or second sharing information so as to output the first or second sharing information.

A bidirectional information sharing method using a wireless data network, the method comprising:

• storing first sharing information to be transmitted to a mobile phone of a called party to a mobile phone of a first user at the time of a phone call;
• receiving a call connection request signal and second sharing information from the mobile phone of a second user that is the called party;
• outputting the second sharing information on the mobile phone of the first user and transmitting the first sharing information pre-stored in the mobile phone of the first user to the mobile phone of the second user so as to be output on a screen;
• and
• transmitting and receiving voice data via the mobile phone of the called party so as to perform the phone call,
• wherein the outputting further includes:
• determining whether there is the second sharing information of the called party;
• extracting previously registered advertisement information if it is determined that the second sharing information of the called party does not exist;
• and
• outputting the advertisement information on the screen.

A bidirectional information sharing method using a wireless data network, the method comprising:

• storing first sharing information to be transmitted to a mobile phone of a called party to a mobile phone of a first user at the time of a phone call;
• receiving a call connection request signal and second sharing information from the mobile phone of a second user that is the called party;
• outputting the second sharing information on the mobile phone of the first user and transmitting the first sharing information pre-stored in the mobile phone of the first user to the mobile phone of the second user so as to be output on a screen;
• and
• transmitting and receiving voice data via the mobile phone of the called party so as to perform the phone call,
• wherein the transmitting further includes:
• receiving a sharing authorization signal for specific files from the mobile phone of the first user;
• transmitting the specific files to the mobile phone of the second user by the mobile phone of the first user;
• determining whether the mobile phone of the first user changes data output so as to be output on the screen;
• extracting a change value by the mobile phone of the first user to be transmitted to the mobile phone of the second user;
• and
• applying the change value by the mobile phone of the second user to update and process the specific files.