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    • 61. 发明申请
    • BOREHOLE COMPENSATED RESISTIVITY LOGGING TOOL HAVING AN ASYMMETRIC ANTENNA SPACING
    • 具有不对称天线间距的BOREHOLE补偿电阻率测井工具
    • US20100305862A1
    • 2010-12-02
    • US12476868
    • 2009-06-02
    • Jing Li
    • Jing Li
    • G01V3/30G06F19/00
    • G01V3/30
    • A compensated resistivity logging while drilling tool having axially asymmetrically spaced transmitters is configured to provide compensated resistivity measurements. In one exemplary embodiment, the tool includes first and second compensating transmitters, preferably deployed axially symmetrically between first and second spaced receivers. The tool further includes a plurality of transmitters deployed axially asymmetrically with respect to the receivers, e.g., on one axial side of the receivers. The compensating transmitters are configured to acquire a borehole compensation that may be subtracted from conventional phase and attenuation measurements.
    • 具有轴向不对称间隔的发射器的钻孔工具的补偿电阻率测井被配置为提供补偿的电阻率测量。 在一个示例性实施例中,工具包括第一和第二补偿发射器,优选地在第一和第二间隔接收器之间轴向对称地展开。 该工具还包括多个相对于接收器不对称地布置的发射器,例如在接收器的一个轴向侧。 补偿发射机被配置为获取可以从常规相位和衰减测量中减去的钻孔补偿。
    • 67. 发明申请
    • METHOD AND SYSTEM FOR DISTRIBUTING KEY OF MEDIA STREAM
    • 用于分发媒体关键的方法和系统
    • US20090279705A1
    • 2009-11-12
    • US12508025
    • 2009-07-23
    • Kai SunTao KongJianghai GaoJing Li
    • Kai SunTao KongJianghai GaoJing Li
    • H04L9/08H04L9/06
    • H04L9/083H04L63/06
    • A method and a system for distributing key of media stream are provided. The method comprises: determining, by a security management server, whether a domain to which the calling terminal belongs and a domain to which a called terminal belongs subscribe a key distribution protocol; generating a key based on encryption capability information obtained in a calling process, and distributing the generated key to the calling terminal and the called terminal, if the protocol has been subscribed; generating a key based on encryption capability information obtained in a calling process, and distributing the generated key to the terminal at the same side as the security management server, if the protocol has not been subscribed. By applying the disclosure, the key is generated by the security management server, so that complexity may be reduced for media stream key negotiation to facilitate promotion of media stream encryption service.
    • 提供了一种用于分发媒体流密钥的方法和系统。 该方法包括:由安全管理服务器确定主叫终端所属的域和被叫终端所属的域是否签发密钥分发协议; 基于在呼叫处理中获得的加密能力信息生成密钥,并且如果协议已被订阅,则将生成的密钥分发给主叫终端和被叫终端; 基于在呼叫处理中获得的加密能力信息生成密钥,并且如果协议没有被订阅,则将生成的密钥分发到与安全管理服务器相同的一侧的终端。 通过应用本公开,密钥由安全管理服务器生成,从而可以减少媒体流密钥协商的复杂性,以促进媒体流加密服务的推广。