System and method for reading information code from mobile terminal, and information code reader provided in the system

A method of processing an information code in a system provided with a mobile terminal provided with a terminal-side display unit with a screen and an information code reader provided with a reader-side imaging unit and a reader-side interpreting section and provided to be communicable with the mobile terminal,

• comprising steps of:
• making the mobile terminal generate a first information code serving as the information code, based on i) predetermined information and first determining information which are information in relation to identifying the mobile terminal or a user of the mobile terminal or ii) based on the first determining information;
• making the mobile terminal control the terminal-side display unit to display the first information code on the screen;
• making the information code reader image the first information code displayed on the screen of the terminal-side display unit;
• making the information code reader interpret the first information code imaged by the reader-side imaging unit;
• making the information code reader determine whether or not, in association with imaging of a second information code by the reader-side imaging unit, the reader-side interpreting section has interpreted the second determining information or both the second determining information and the predetermined information;
• making the mobile terminal acquire, from the information code reader, the second determining information and the first determining information imaged and interpreted by the information code reader, the first determining information being derived from the first information code displayed on the screen;
• making the mobile terminal determine whether or not the acquired information includes the first determining information;
• making the mobile terminal generate, when it is determined that the acquired information includes the first determining information, i) the second information code serving as the information code based on the second determining information acquired together with the first determining information in a case where the first information code is generated based on the predetermined information and the first determining information, or ii) the second information code serving as the information code based on both the second determining information acquired together with the first determining information and the predetermined information in a case where the first information code is generated based on the first determining information;
• making the mobile terminal update the screen of the terminal-side display unit from a state where the first information code is displayed on the screen to another state where the second information code is displayed on the screen, in response to the generated second information code;
• and
• making the information code reader perform a process based on the predetermined information interpreted by the reader-side interpreting section together with the first determining information or the second determining information, when the second determining information or both the second determining information and the predetermined information has been interpreted.

A mobile terminal provided a terminal-side display unit provided with a screen, the terminal-side display unit being capable of displaying an information code on the screen and being communicable with an information code reader provided with a reader-side imaging unit and a reader-side interpreting section, the mobile terminal comprising

• a first code generating section generating a first information code as the information code based on both predetermined information concerning with identifying a user of the mobile terminal or identifying the mobile terminal itself and first identifying information or based on the first identifying information;
• a first display controller controlling the terminal-side display unit to display on the screen the first information code generated by the first code generation section;
• an acquisition section acquiring, from the information code reader, second determining information and the first determining information obtained by decoding the first information code displayed on the screen and imaged in the information code reader;
• a first determining section determining whether or not information acquired by the acquisition section includes the first determining information;
• a second code generating section generating a second information code serving as the information code, i) based on the second determining information acquired together with the first determining information when the first information code is generated based on both the predetermined information and the first determining information or ii) based on both the second determining information acquired together with the first determining information and the predetermined information when the first information code is generated based on the first determining information, in response to a determination of the first determining section that the information acquired by the acquisition section includes the first determining information;
• and
• a second display controller updating display of the terminal-side display unit from a screen state where the first information code has been displayed to a screen state where the second information code is displayed, when the second code generating section has generated the second information code,
• wherein the information code reader makes the information code reader image the first information code displayed on the screen of the terminal-side display unit,
• decode the first information code imaged by the reader-side imaging unit,
• perform a second determination whether or not the reader-side interpreting section interprets the second determining information or both the determining information and the predetermined information, in response to imaging the second information code by the reader-side imaging unit, and
• make the reader-side interpreting section perform a process based on the first determining information or the predetermined information decoded together with the second determining information, when the second determining information or the second determining information and the predetermined information have been decoded by the second determination.