CONTENTS MANAGING DEVICE, CONTENTS REPRODUCING DEVICE, CONTENTS DELIVERING DEVICE, CONTENTS RENEWAL MANAGING METHOD, CONTENTS RENEWING METHOD, CONTENTS DELIVERING METHOD, CONTENTS RENEWAL MANAGING PROGRAM, CONTENTS RENEWING PROGRAM, CONTENTS DELIVERI

摘要

When a reception unit (101) receives a renewing request of reproduced contents, an acquiring unit (102) acquires their effective period. Next, when a renewal judging unit (105) judges that an effective period of contents with a period limitation is not renewed, a requesting unit (107) requests a contents delivering device to renew the effective period. A period limited contents renewal control unit (108) then controls the renewal of the effective period of period limited contents in accordance with the requested information. Next, an effective period judging unit (104) compares effective periods and in accordance with the compared result a reproduced contents renewal control unit (109) controls renewal of an effective date of reproduced contents.