发明名称 |
Data reproduction apparatus and data reproduction module |
摘要 |
A cellular phone has distributed encrypted content data and an encrypted content key stored in a memory. The encrypted content key data read out from the memory is decrypted by a decryption processing unit using key data Kp stored in a Kp hold unit, and then applied to a audio reproduction module. A decryption processing unit decrypts encrypted content data read out from the memory using a content key Kc extracted by the decryption processing unit to reproduce content data Dc.
|
申请公布号 |
US7203312(B1) |
申请公布日期 |
2007.04.10 |
申请号 |
US20000069118 |
申请日期 |
2000.08.29 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
HATANAKA MASAYUKI;KAMADA JUN;HATAKEYAMA TAKAHISA;HASEBE TAKAYUKI;KOTANI SEIGOU;FURUTA SHIGEKI;ANAZAWA TAKEAKI;HIOKI TOSHIAKI;KANAMORI MIWA;HORI YOSHIHIRO |
分类号 |
H04N7/167;G06F21/00;G06F21/31;G06Q99/00;G10L19/00;H04K1/00;H04L9/00;H04L9/10;H04L29/06;H04M1/60;H04M1/725;H04W12/02 |
主分类号 |
H04N7/167 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|