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163 条记录 (耗时 0.024 秒)

    Method and apparatus for modulating digital signal using equilateral triangular constellation
    86.
    发明申请
    Method and apparatus for modulating digital signal using equilateral triangular constellation 有权
    使用等边三角星座调制数字信号的方法和装置

    公开(公告)号：US20070291874A1

    公开(公告)日：2007-12-20

    申请号：US11593351

    申请日：2006-11-06

    申请人： Sung-Joon Park

    发明人： Sung-Joon Park

    IPC分类号： H04L27/36

    CPC分类号： H04L27/34

    摘要： Disclose is a modulation method that transmits n bits per modulation symbol, comprising the steps of: (a) generating a constellation of which 2n constellation points are arranged to be angular point of equilateral triangle; (b) generating a modulation symbol by mapping the constellation point with digital signal. According to the present invention, average power consumed by constellation points can be reduced by using equilateral triangular constellation.

    摘要翻译： Disclose是每调制符号发送n个比特的调制方法，包括以下步骤：（a）生成其中2个星座点被布置为等边三角形的角点的星座; （b）通过将星座点与数字信号进行映射来产生调制符号。 根据本发明，可以通过使用等边三角形星座来降低星座点消耗的平均功率。

    Protective layer of ink-jet print head and method of making ink-jet print head having the same
    87.
    发明申请
    Protective layer of ink-jet print head and method of making ink-jet print head having the same 审中-公开

    公开(公告)号：US20070285471A1

    公开(公告)日：2007-12-13

    申请号：US11790369

    申请日：2007-04-25

    申请人： Sung-joon Park ,  O-hyun Beak ,  Young-ung Ha ,  Jae-sik Min

    发明人： Sung-joon Park ,  O-hyun Beak ,  Young-ung Ha ,  Jae-sik Min

    IPC分类号： B41J2/05

    CPC分类号： B41J2/14129 ,  B41J2202/03

    摘要： An ink-jet print head and a method of making the same comprising the steps of sequentially laminating a heating layer and an electric conductive layer on a substrate, patterning the electric conductive layer to expose a predetermined area of the top surface of the heating layer, forming a protective layer on the top surfaces of the electric conductive layer and exposed heating layer, and laminating an ink chamber barrier and a nozzle plate on the top surface of the protective layer, thereby forming an ink chamber. The protective layer is provided by forming a cavitation layer by alternately laminating at least two types of thin film layers of different materials over the exposed heating layer and the electric conductive layer to resist fractures and oxidization resulting from use.

    Combination-based broadcast encryption method
    88.
    发明申请
    Combination-based broadcast encryption method 有权
    基于组合的广播加密方式

    公开(公告)号：US20070140483A1

    公开(公告)日：2007-06-21

    申请号：US11311256

    申请日：2005-12-20

    申请人： Weon-il Jin ,  Dae-youb Kim ,  Hwan-joon Kim ,  Sung-joon Park

    发明人： Weon-il Jin ,  Dae-youb Kim ,  Hwan-joon Kim ,  Sung-joon Park

    IPC分类号： H04L9/00 ,  G06F12/14 ,  H04L9/32 ,  G06F11/30

    CPC分类号： H04L9/0833 ,  G06F21/10 ,  H04L9/0822 ,  H04L2209/601

    摘要： A combination-based broadcast encryption method includes: assigning by a server a base group of different combinations to each user; producing and sending secret information for each user by using as a base the base group allocated to each user; producing and sending an inverse-base parameter value through calculations with integers used to produce the base group and key value information of one or more privileged users; and deriving a group key by using the key value information of the privileged users, encrypting a session key by using the derived group key, and sending the encrypted session key to each user. Accordingly, each user is assigned a different base through a combination, thereby having security against collusion attacks.

    摘要翻译： 基于组合的广播加密方法包括：由服务器分配不同组合的基组给每个用户; 通过使用分配给每个用户的基本组作为基础来生成和发送每个用户的秘密信息; 通过用于产生基本组的整数和一个或多个特权用户的键值信息的计算产生和发送反基本参数值; 以及通过使用所述特权用户的密钥值信息来导出组密钥，通过使用导出的组密钥加密会话密钥，以及将加密的会话密钥发送给每个用户。 因此，通过组合为每个用户分配不同的基站，从而具有防止串通攻击的安全性。

    Method and apparatus to determine wireless network link
    89.
    发明申请
    Method and apparatus to determine wireless network link 审中-公开
    确定无线网络链路的方法和装置

    公开(公告)号：US20070121563A1

    公开(公告)日：2007-05-31

    申请号：US11583799

    申请日：2006-10-20

    申请人： Sung-joon Park

    发明人： Sung-joon Park

    IPC分类号： H04Q7/24

    CPC分类号： H04W48/18 ,  H04W84/12

    摘要： A method and apparatus to determine a wireless network link includes detecting one or more connectable wireless networks, forming a link to one of the detected wireless networks, determining whether predetermined data is received via the linked wireless network, and determining the linked wireless network as a host-connected network when the predetermined data is received via the linked wireless network. The method is performed by a peripheral and the predetermined data is transmitted by a host via the host-connected network.

    摘要翻译： 一种确定无线网络链路的方法和装置包括检测一个或多个可连接的无线网络，形成到所检测的无线网络之一的链路，确定是否经由所链接的无线网络接收到预定数据，以及将所链接的无线网络确定为 当经由链接的无线网络接收到预定数据时，主机连接的网络。 该方法由外围设备执行，预定数据由主机通过主机连接的网络传输。

    RDS data security apparatus and method
    90.
    发明申请
    RDS data security apparatus and method 有权
    RDS数据安全设备及方法

    公开(公告)号：US20070050674A1

    公开(公告)日：2007-03-01

    申请号：US11513119

    申请日：2006-08-31

    申请人： Sung-joon Park ,  Hung-joon Oh

    发明人： Sung-joon Park ,  Hung-joon Oh

    IPC分类号： G06F11/00

    CPC分类号： H04L67/125 ,  H04L12/2818 ,  H04L12/2825 ,  H04L63/20

    摘要： A remote diagnostic system (RDS) data security device and method are provided, in which an interface unit receives an RDS command from a host, a storage unit stores a security setting for RDS data, and a control unit performs an operation for the RDS data according to the RDS command and the security setting, wherein the result obtained by the performance is selectively transmitted externally. Accordingly, since the reading and writing operations of RDS data are performed according to an RDS command received from the host and previously stored security setting, and the result obtained by the reading and writing operations is displayed, data collected in the RDS can be prevented from being transmitted to the server without permission, and data allowed to an authorized user can be transmitted to the server.

    摘要翻译： 提供远程诊断系统（RDS）数据安全装置和方法，其中接口单元从主机接收RDS命令，存储单元存储用于RDS数据的安全设置，并且控制单元执行RDS数据的操作 根据RDS命令和安全设置，其中通过性能获得的结果被选择性地从外部传送。 因此，由于根据从主机接收到的RDS命令和先前存储的安全设置来执行RDS数据的读取和写入操作，并且显示通过读取和写入操作获得的结果，可以防止在RDS中收集的数据 未经许可被发送到服务器，允许授权用户的数据可以被发送到服务器。