BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic for explaining the method of preventing leakage of traceability information in a radio-tag system according to an embodiment of the present invention;
FIG. 2 is a detailed functional block diagram the radio-tag system shown in FIG. 1;
FIG. 3 depicts an example of the contents of an advertisement-content table shown in FIG. 2;
FIG. 4 depicts an example of the contents of an advertisement-ID management table shown in FIG. 2;
FIG. 5 depicts an example of the contents of a tag-information table shown in FIG. 2;
FIG. 6 depicts an example of the contents of an advertisement management table shown in FIG. 2;
FIG. 7 depicts an example of display by a tag-information display unit shown in FIG. 2;
FIG. 8 is a flowchart of the processes performed by the radio-tag system shown in FIG. 2 when displaying traceability information;
FIG. 9 is a flowchart of an advertisement-ID issuing process performed by an advertisement-ID issuing unit shown in FIG. 2;
FIG. 10 is a flowchart of an advertisement-information providing process performed by an advertisement-use management unit shown in FIG. 2;
FIG. 11 is a flowchart of an advertisement-ID-issue requesting process performed by an advertisement-ID-issue requesting unit shown in FIG. 2;
FIG. 12 is a flowchart of an advertisement-ID writing process performed by the advertisement-ID writing unit shown in FIG. 2;
FIG. 13 is a flowchart of a tag-information informing process performed by a tag-information informing unit shown in FIG. 2;
FIG. 14 is a flowchart of a tag-information displaying process performed by a tag-information display unit shown in FIG. 2;
FIG. 15 is a functional block diagram of a computer that realizes the units, steps, process, methods according to the embodiment; and
FIG. 16 is a schematic for explaining the problems in the conventional technology.
Patent Application
20070233554
