Communication terminal, management system, communication system, and display method

A communication system, comprising:

• a communication terminal for communicative connection to another communication terminal, of a plurality of communication terminals, via a network;
• and
• a management system connected to the network, wherein the communication terminal includes
• a receiver configured to receive first stroke data generated by and initially transmitted from the another communication terminal;
• and
• circuitry configured to
• receive particular name information that is associated with a transmission source of the first stroke data, the particular name information being managed by the management system;
• and
• perform control that displays a first image based on the first stroke data and a second image based on the received particular name information in association with each other,
• wherein the management system includes
• a memory to store name information in association with respective transmission sources of stroke data, and store user information in association with respective address information of the transmission sources of the stroke data, and
• management circuitry configured to
• extract, from the memory, upon receiving the first stroke data, the particular name information that is associated with the transmission source of the first stroke data, and transmit the extracted particular name information to the communication terminal, and
• extract, from the memory, when receiving particular address information that is initially transmitted together with the first stroke data from the another communication terminal, user information that is associated with the particular address information, and transmit the extracted user information to the communication terminal.

A method for controlling a communication system including a communication terminal for communicative connection to another communication terminal, of a plurality of communication terminals, via a network, and a management system connected to the network, and including a memory to store name information in association with respective transmission sources of stroke data, and store first sign information indicating signs in association with the respective transmission sources of the stroke data, the method comprising:

• receiving, by the communication terminal, first stroke data generated by and initially transmitted from the another communication terminal;
• receiving, by the communication terminal, out of name information stored in the memory, particular name information that is associated with a transmission source of the first stroke data;
• performing, by the communication terminal, control that displays a first image based on the first stroke data and a second image based on the received name information in association with each other;
• extracting, from the memory by the management system, upon receiving the first stroke data, the particular name information that is associated with the transmission source of the first stroke data;
• determining, by the management system, when receiving second sign information that is initially transmitted together with the first stroke data from the another communication terminal, whether the second sign information matches first sign information that is associated with the transmission source of the first stroke data;
• and
• transmitting, by the management system, the extracted particular name information to the communication terminal, in response to a match between the first sign information and the second sign information.

A method for controlling a communication system including a communication terminal for communicative connection to another communication terminal, of a plurality of communication terminals, via a network, and a management system connected to the network, and including a memory to store name information in association with respective transmission sources of stroke data, and store user information in association with respective address information of the transmission sources of the stroke data, the method comprising:

• receiving, by the communication terminal, first stroke data generated by and initially transmitted from the another communication terminal;
• receiving, out of the name information stored in the memory, particular name information that is associated with a transmission source of the first stroke data;
• performing, by the communication terminal, control that displays a first image based on the first stroke data and a second image based on the received particular name information in association with each other;
• extracting, from the memory by the management system, upon receiving the first stroke data, the particular name information that is associated with the transmission source of the first stroke data, and transmitting the extracted particular name information to the communication terminal;
• and
• extracting, from the memory by the management system, when receiving particular address information that is initially transmitted together with the first stroke data from the another communication terminal, user information that is associated with the particular address information, and transmitting the extracted user information to the communication terminal.