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    • 2. 发明授权
    • Ethernet passive optical network and point-to-point emulation method
    • 以太网无源光网络和点对点仿真方法
    • US07330654B2
    • 2008-02-12
    • US10406468
    • 2003-04-03
    • Jae-Youn SongMin-Hyo LeeA-Jung Kim
    • Jae-Youn SongMin-Hyo LeeA-Jung Kim
    • H04J14/00H04J3/26H04B10/00H04L12/56
    • H04L12/4625H04L12/4633H04L49/3009H04L49/351H04L49/357H04L69/22H04L69/324H04Q11/0062H04Q11/0066H04Q11/0067H04Q11/0071
    • Disclosed is a point-to-point emulation method for operating an Ethernet passive optical network having an optical line terminal (OLT) and a plurality of optical network units (ONUs) each connected to the OLT. A tag Ethernet frame transmitted between the OLT and the ONUs includes a destination address (DA) field representing a destination address, a source address (SA) field representing a source address, and an LLID field in which a unique LLID assigned to an object of the ONU side is recorded. The LLIDs are assigned to ports of a bridge or an L2 (Layer 2) switch of the OLT side on a one-to-one basis. The OLT, upon receiving a tag Ethernet frame, outputs an LLID field-deleted Ethernet frame to the bridge or L2 switch port to which an LLID in the received frame is assigned. The bridge or the L2 switch transmits the Ethernet frame to a port to which a previously learned destination address is assigned. The OLT regenerates a tag Ethernet frame by inserting into the Ethernet frame an LLID field in which an LLID of the destination ONU is recorded. The regenerated tag Ethernet frame is transmitted to the destination ONU.
    • 公开了一种用于操作具有每个连接到OLT的光线路终端(OLT)和多个光网络单元(ONU)的以太网无源光网络的点对点仿真方法。 在OLT和ONU之间发送的标签以太网帧包括表示目的地地址的目的地地址(DA)字段,表示源地址的源地址(SA)字段和LLID字段,其中分配给对象的唯一LLID ONU侧被记录。 LLID一一对应地分配给OLT侧的桥或L2(二层)交换机的端口。 OLT在接收到标签以太网帧时,向分配了接收帧中的LLID的桥或L2交换机端口输出LLID字段删除的以太网帧。 桥接器或L2交换机将以太网帧发送到分配了先前学习的目标地址的端口。 OLT通过在以太网帧中插入记录目的ONU的LLID的LLID字段来再生标签以太网帧。 再生标签以太网帧发送到目的ONU。
    • 3. 发明授权
    • Method of transmitting security data in an ethernet passive optical network system
    • 在以太网无源光网络系统中传输安全数据的方法
    • US07305551B2
    • 2007-12-04
    • US10677461
    • 2003-10-02
    • A-Jung KimJin-Hee KimSe-Youn LimJae-Yeon Song
    • A-Jung KimJin-Hee KimSe-Youn LimJae-Yeon Song
    • H04L9/00
    • H04L63/0236H04L63/0428
    • A method of transmitting security data from a source point to a target point in a point-to-multipoint communication system is provided. The method includes the steps of forming an encryption tag field that includes information about an encryption tag type, which indicates whether transmission data is encryption-enabled or encryption-disabled; forming a packet data field which includes encrypted transmission data; forming a first integrity check field indicating the CRC check sum of the encrypted data; forming a length and type field indicating the sum of the lengths of the packet data field and the first integrity check field. Finally, a transmission frame is formed with these formed fields, a source address field indicating the address of the source point, and a destination address field indicating the address of the target point.
    • 提供了一种在点对多点通信系统中将安全数据从源点传送到目标点的方法。 该方法包括以下步骤:形成包括关于加密标签类型的信息的加密标签字段,其指示传输数据是加密还是加密禁用; 形成包括加密的传输数据的分组数据字段; 形成指示加密数据的CRC校验和的第一完整性校验字段; 形成指示分组数据字段和第一完整性校验字段的长度之和的长度和类型字段。 最后,用这些形成的字段形成传输帧,指示源点的地址的源地址字段和指示目标点的地址的目的地地址字段。
    • 4. 发明申请
    • Method and apparatus for duplex communication in hybrid fiber-radio systems
    • 混合光纤无线电系统中双工通信的方法和装置
    • US20080232799A1
    • 2008-09-25
    • US12153755
    • 2008-05-23
    • A-Jung Kim
    • A-Jung Kim
    • H04B10/24H04J14/00
    • H04B10/25752
    • An apparatus and method for enabling cost-effective duplex communication by diplexing one of down stream signals for frequency up-conversion in a hybrid fiber-radio system includes diplexing an unmodulated mode signal among beating signals between a master laser and an injection-locked slave laser and using the diplexed signal for down-conversion in upstream transmission, thereby eliminating the need for expensive high-frequency local oscillators for frequency conversion. Higher radio frequency signals can be generated using beating between basic modes and satellite modes such as FWM conjugates of the master laser and slave laser. Cost-effective systems, stabilization of a light source and improved transmission performance may be achieved by using a diplexer instead of an expensive high-frequency local oscillator.
    • 一种用于通过在混合光纤无线电系统中将用于上变频的下行信号中的一个双工而实现经济有效的双工通信的装置和方法包括在主激光器和注入锁定的从属激光器之间的跳动信号之间复合未调制的模式信号 并且在上行传输中使用双工信号进行下变频,从而不需要用于频率转换的昂贵的高频本地振荡器。 可以使用基本模式和卫星模式之间的跳动来产生更高的射频信号,例如主激光器和从激光器的FWM共轭。 可以通过使用双工器代替昂贵的高频本地振荡器来实现成本有效的系统,光源的稳定和改进的传输性能。
    • 5. 发明授权
    • Key agreement method in secure communication system using multiple access method
    • 使用多重访问方式的安全通信系统中的密钥协商方法
    • US07349545B2
    • 2008-03-25
    • US09816080
    • 2001-03-26
    • A-jung Kim
    • A-jung Kim
    • H04L9/00
    • H04L9/0852H04L9/0838
    • A key agreement method for secure communication in a multiple access system is provided.A key agreement method for secure communication in a multiple access system, the key agreement method includes the steps of (a) a first user, modulating signals from a source by a bit sequence and transmitting the modulated signal, (b) a second user, a legitimate counterpart of the first user, decoding, making decision for each bit of the signal with a detector affected by noise and recording the measured values, (c) the second user, deciding a threshold value of measurement with consideration of other factors such as a transmission rate, tolerable error rates, and a degree of security, (d) the second user adopting as a key string only bits having values beyond the threshold value and ignoring bits falling the erroneous region below the threshold, (e) the second user informing the first user that the n-th bit is adopted, not telling the value of the bit, and (f) the users, the first user and the second user, taking as a key string the values of the n-th bits adopted in (e), and discarding the values of the other bits.
    • 提供了一种用于多址系统中的安全通信的密钥协商方法。 一种用于多址系统中的安全通信的密钥协商方法,所述密钥协商方法包括以下步骤:(a)第一用户,通过比特序列调制来自源的信号并发送调制信号;(b)第二用户, 第一用户的合法对方,用受噪声影响的检测器对每个位的信号进行解码,记录测量值,(c)第二用户,考虑其他因素,如 传输速率,可容忍的错误率和安全程度,(d)第二用户仅使用具有超过阈值的值的比特,并忽略低于阈值的错误区域的比特,(e)第二用户 通知第一用户第n位被采用,不告知位的值,以及(f)用户,第一用户和第二用户以采用的第n位的值作为关键字串 在(e)中,丢弃 其他位的值。