公开(公告)号：US07707406B2

公开(公告)日：2010-04-27

申请号：US10703104

申请日：2003-11-05

申请人： Xin Qiu

发明人： Xin Qiu

IPC分类号： H04L29/06

CPC分类号： G06F21/33 ,  H04L9/0891 ,  H04L9/3265 ,  H04L63/0823 ,  H04L2209/60

摘要： A system using digital certificates having overlapping validity intervals. The overlapping certificates can be used in a hierarchical certificate authorities network in order to obtain benefits such as to increase the usage of all the certificates in the certificate chain; reduce/eliminate the certificate updates/downloads to a large population; only replace the minimum number of certificates in the trust hierarchy to re-establish the certificate chain; reduce the complexity of maintaining certificate nesting in certificate generation process; reduce the risk of service interruption; and control the extent of older technology in circulation and to reduce the risk associated with older products being more susceptible to attack. The certificate renewal process of a preferred embodiment is described.

摘要翻译： 使用具有重叠有效间隔的数字证书的系统。 重叠的证书可以用于分级证书机构网络，以获得诸如增加证书链中所有证书的使用的优点; 减少/消除证书更新/下载到大量人口; 仅替换信任层次结构中的最小证书数量来重新建立证书链; 降低证书生成过程中维护证书嵌套的复杂性; 降低服务中断的风险; 并控制旧技术流通的程度，并降低与老年产品相关的风险更容易受到攻击。 描述优选实施例的证书更新过程。

公开(公告)号：US07660986B1

公开(公告)日：2010-02-09

申请号：US09576516

申请日：2000-05-23

申请人： Xin Qiu ,  Eric J. Sprunk ,  Paul Moroney

发明人： Xin Qiu ,  Eric J. Sprunk ,  Paul Moroney

IPC分类号： H04L9/32 ,  H04N7/167

CPC分类号： H04N21/4623 ,  H04L9/002 ,  H04L9/088 ,  H04N7/1675 ,  H04N21/26606

摘要： A system to change security levels is used to change the level of security used in a secured processing system. The system uses a status indicator to designate the security level being implemented. The security level can be upgraded to allow a higher level of security to be implemented with relative ease. However, in order to change from a higher level of security to a lower level of security, an authorization code is utilized to confirm that the change in security is authorized.

摘要翻译： 用于更改安全级别的系统用于改变安全处理系统中使用的安全级别。 系统使用状态指示器来指定正在执行的安全级别。 可以升级安全级别，以便相对容易地实现更高级别的安全性。 然而，为了从更高的安全级别改为较低级别的安全性，使用授权码来确认安全性的改变是否被授权。

公开(公告)号：US20090263271A1

公开(公告)日：2009-10-22

申请号：US12105165

申请日：2008-04-17

申请人： Jian Meng ,  Daqing Fang ,  Deping Zhang ,  Dingxiang Tang ,  Huayi Lu ,  Lianshan Zhao ,  Wei Sun ,  Xin Qiu ,  Hongjie Zhang

发明人： Jian Meng ,  Daqing Fang ,  Deping Zhang ,  Dingxiang Tang ,  Huayi Lu ,  Lianshan Zhao ,  Wei Sun ,  Xin Qiu ,  Hongjie Zhang

IPC分类号： C22C23/00

CPC分类号： C22C23/04 ,  C22F1/06

摘要： A high-strength, high-toughness, weldable and deformable rare earth magnesium alloy comprised of 0.7˜1.7% of Ym, 5.5˜6.4% of Zn, 0.45˜0.8% of Zr, 0.02% or less of the total amount of impurity elements of Si, Fe, Cu and Ni, and the remainder of Mg, based on the total weight of the alloy. During smelting, Y, Ho, Er, Gd and Zr are added in a manner of Mg—Y-rich, Mg—Zr intermediate alloys into a magnesium melt; Zn is added in a manner of pure Zn, and at 690˜720° C., a round bar was cast by a semi-continuous casting or a water cooled mould, then an extrusion molding was performed at 380˜410° C. after cutting. Before the extrusion, the alloy is treated by the solid-solution treatment at 480˜510° C. for 2˜3 hours, however, the alloy can also be extrusion molded directly without the solid-solution treatment. After the extrusion molding, this alloy has a strength of 340 MPa or more and a percentage elongation of 14% or more at room temperature and is a high-strength, high-toughness, weldable and deformable rare earth magnesium alloy.

摘要翻译： 高强度，高韧性，可焊接和可变形的稀土镁合金由Ym的0.7〜1.7％，Zn的5.5〜6.4％，Zr的0.45〜0.8％，杂质元素的总量的0.02％以下 的Si，Fe，Cu和Ni，剩余的Mg基于合金的总重量。 在熔炼过程中，以Mg-Y，Mg-Zr中间合金的方式将Y，Ho，Er，Gd和Zr加入到镁熔体中; 以纯Zn的方式添加Zn，在690〜720℃下，通过半连续浇铸或水冷模具浇铸圆棒，然后在380〜410℃下进行挤出成型 切割。 在挤出前，合金经480〜510℃的固溶处理2〜3小时，然而，该合金也可直接挤出成型，无需固溶处理。 挤出成型后，该合金的室温下的强度为340MPa以上，伸长率为14％以上，为高强度，高韧性，可焊接且可变形的稀土类镁合金。

公开(公告)号：US07607022B1

公开(公告)日：2009-10-20

申请号：US09587932

申请日：2000-06-06

申请人： Xin Qiu ,  Eric J. Sprunk

发明人： Xin Qiu ,  Eric J. Sprunk

IPC分类号： H04N7/16 ,  H04N7/167

CPC分类号： H04N7/52 ,  H04L9/088 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/4405

摘要： A system to transmit a set of programs from a transmitter to a receiver is used to accommodate different levels of security used for each program. When a high level of security is necessary for transmitting or receiving a program the transmitter and/or receiver is operable to accommodate that level of security. Thus, both transmitters and receivers are operable to be reconfigured to encrypt or decrypt, respectively, at different levels. Accordingly, differing amounts of programs can be transmitted or received based on the resource requirements needed at any level of security. Consequently, a high level of encryption/decryption requires more resources and allows the processing of fewer services, while a lower level of encryption/decryption allows more services to be transmitted/received.

摘要翻译： 用于将一组程序从发射机发射到接收机的系统被用于适应用于每个节目的不同级别的安全性。 当需要高水平的安全性来发送或接收程序时，发射器和/或接收器可操作以适应该级别的安全性。 因此，发射机和接收机都可以被重新配置以分别在不同的级别进行加密或解密。 因此，可以基于任何安全级别所需的资源要求来发送或接收不同数量的程序。 因此，高级别的加密/解密需要更多的资源并且允许处理较少的服务，而较低级别的加密/解密允许发送/接收更多的服务。