首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Digital rights management system
摘要
申请公布号
EP1524580(A3)
申请公布日期
2006.04.12
申请号
EP20040019214
申请日期
2004.08.12
申请人
MICROSOFT CORPORATION
发明人
ZHU, BIN;GU, GUOFEI;LI, SHIPENG
分类号
G06F1/00;G06F21/24;G06F15/00;G06F21/00;G06Q30/00;G06Q50/00;G06Q99/00;G09C1/00;H04L9/08;H04L29/08
主分类号
G06F1/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
WAFER SEPARATION
SCHOTTKY STRUCTURE EMPLOYING CENTRAL IMPLANTS BETWEEN JUNCTION BARRIER ELEMENTS
ENCLOSURE FOR ELECTRONIC COMPONENTS WITH ENHANCED COOLING
NOTEBOOK COMPUTER
PORTABLE DEVICE CAPTURE
ELECTRONIC DEVICE AND HOUSING
PORTABLE INPUT DEVICE
MULTILAYER CERAMIC ELECTRONIC COMPONENT
Three-Phase Circuit-Breaker
PERPENDICULAR MAGNETIC WRITE HEAD HAVING A HULL SHAPED STITCHED POLE
IMAGING LENS UNIT
VARIABLE MAGNIFICATION OPTICAL SYSTEM AND IMAGING APPARATUS
IMAGE PROCESSING DEVICE
IMAGE FORMING APPARATUS AND RECORDING MEDIUM
DATA TRANSMISSION APPARATUS, METHOD FOR CONTROLLING DATA TRANSMISSION APPARATUS, AND STORAGE MEDIUM
DEVICE, INFORMATION PROCESSING SYSTEM, AND CONTROL METHOD THEREOF
OPTICAL POSITION-MEASURING DEVICE
ILLUMINATION APPARATUS AND METHOD FOR OPTIMAL VISION
ALIGNMENT CORRECTION METHOD FOR SUBSTRATE TO BE EXPOSED, AND EXPOSURE APPARATUS
PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
