Combination-based broadcast encryption method
    1.
    发明授权
    Combination-based broadcast encryption method 有权
    基于组合的广播加密方式

    公开(公告)号:US08897445B2

    公开(公告)日:2014-11-25

    申请号:US13460098

    申请日:2012-04-30

    IPC分类号: H04L9/08 G06F21/10

    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 for allowing packet in network image forming apparatus includes setting user account information corresponding to plurality of network interfaces
    2.
    发明授权
    Method and apparatus for allowing packet in network image forming apparatus includes setting user account information corresponding to plurality of network interfaces 有权
    在网络图像形成装置中允许分组的方法和装置包括设置与多个网络接口对应的用户帐户信息

    公开(公告)号:US08749805B2

    公开(公告)日:2014-06-10

    申请号:US12117885

    申请日:2008-05-09

    IPC分类号: G06K15/00 G06F3/12 H04N1/00

    摘要: A method of allowing a packet in a network image forming apparatus includes setting user account information corresponding to the plurality of network interfaces, determining allowability of a received packet by using information included in the received packet and the set user account information, and when the received packet is allowable, performing an operation corresponding to the received packet. Accordingly, in an image forming apparatus installing a plurality of network interfaces, not only allowability of each interface to each user but also a type of protocol provided to each user can be setup. Consequently, an environment that can use an interface in various forms according to each user can be provided.

    摘要翻译: 允许网络图像形成装置中的分组的方法包括:设置与多个网络接口对应的用户账户信息,通过使用包含在接收到的分组中的信息和所设置的用户账户信息来确定接收分组的允许性,以及当接收到 分组是允许的,执行与接收到的分组相对应的操作。 因此,在安装多个网络接口的图像形成装置中,不仅可以设置每个接口对每个用户的允许性,而且还可以设置向每个用户提供的一种协议。 因此,可以提供可以根据每个用户使用各种形式的界面的环境。

    Inkjet printhead and method of manufacturing the same
    3.
    发明授权
    Inkjet printhead and method of manufacturing the same 失效
    喷墨打印头及其制造方法

    公开(公告)号:US08388113B2

    公开(公告)日:2013-03-05

    申请号:US12036333

    申请日:2008-02-25

    IPC分类号: B41J2/05

    摘要: Provided are an inkjet printhead and a method of manufacturing the same. The inkjet printhead includes: a substrate, on which a plurality of heaters for heating ink to generated ink bubbles are formed; a chamber layer including a plurality of ink chambers formed on the substrate; and a nozzle layer including a plurality of nozzles formed on the chamber layer. In addition, at least one of the chamber layer and the nozzle layer is formed of an imide silicone resin.

    摘要翻译: 提供一种喷墨打印头及其制造方法。 喷墨打印头包括:基板,其上形成有用于加热油墨以产生的油墨气泡的多个加热器; 包括形成在所述基板上的多个墨室的室层; 以及喷嘴层,其包括形成在所述室层上的多个喷嘴。 此外,室层和喷嘴层中的至少一个由酰亚胺硅树脂形成。

    Station and method of collecting information corresponding to security in a wireless network
    5.
    发明授权
    Station and method of collecting information corresponding to security in a wireless network 有权
    收集与无线网络中的安全性相对应的信息的站点和方法

    公开(公告)号:US08031874B2

    公开(公告)日:2011-10-04

    申请号:US11703729

    申请日:2007-02-08

    申请人: Sung-joon Park

    发明人: Sung-joon Park

    摘要: A station and a method of collecting information corresponding to security. A wireless communicator transmits a request packet to search a wireless network to at least one external device and receives a response packet to the request packet. An authentication method determiner analyzes the response packet to search for at least one wireless network and determines an authentication method supported by each of the searched wireless networks. A storage unit stores the determined authentication method of each of the searched wireless networks. Thus, necessary information corresponding to security during a connection to a wireless network can be searched in advance and provided to a user.

    摘要翻译: 一种站点和一种收集对应于安全性的信息的方法。 无线通信器发送请求分组以将无线网络搜索到至少一个外部设备,并且向该请求分组接收响应分组。 认证方法确定器分析响应包以搜索至少一个无线网络,并确定每个搜索到的无线网络支持的认证方法。 存储单元存储所确定的每个搜索无线网络的认证方法。 因此,可以预先搜索与连接到无线网络期间的安全性相对应的必要信息并提供给用户。

    Ink-jet printhead and manufacturing method thereof
    7.
    发明授权
    Ink-jet printhead and manufacturing method thereof 失效
    喷墨打印头及其制造方法

    公开(公告)号:US07758165B2

    公开(公告)日:2010-07-20

    申请号:US12000579

    申请日:2007-12-13

    IPC分类号: B41J2/04

    摘要: An ink-jet printhead and a manufacturing method thereof include a substrate on which a space portion is formed, a passage plate installed on the substrate in which an ink chamber is formed to store ink, a nozzle plate installed at a top surface of the passage plate in which a nozzle is formed to eject the ink, and a vibration plate disposed between the substrate and the passage plate to generate a pressure for ejecting the ink by changing a volume of the ink chamber. The vibration plate includes a base layer formed at a top surface of the substrate so as to cover at least a part of the space portion, a thin film shape memory alloy layer which contacts the ink contained in the ink chamber and varies according to a temperature variation, a heating element disposed between the base layer and the thin film shape memory alloy to generate heat, and an insulating layer disposed between the heating element and the thin film shape memory alloy layer and transfers the heat generated by the heating element to the thin film shape memory alloy layer. Due to a stable temperature coefficient of resistance (TCR) of the heating element, a height and a width of a voltage supplied to the heat element can be easily controlled, and thus power of the vibration plate can be precisely controlled, thereby having a predetermined image quality, and the heating element does not contact directly the ink, thereby realizing stability of the ink-jet printhead.

    摘要翻译: 喷墨打印头及其制造方法包括:基板,其上形成有空间部分,安装在基板上的通道板,其中形成有用于存储墨水的墨水室;喷嘴板,安装在通道的顶表面 其中形成有喷嘴以喷射墨水的板;以及设置在基板和通道板之间的振动板,以通过改变墨水室的体积产生用于喷射墨水的压力。 所述振动板包括形成在所述基板的顶面的基底层,以覆盖所述空间部分的至少一部分;薄膜形状记忆合金层,其与容纳在所述墨水室中的墨水接触并根据温度变化 设置在基底层和薄膜形状记忆合金之间以产生热量的加热元件,以及设置在加热元件和薄膜形状记忆合金层之间的绝缘层,并将由加热元件产生的热量传递到薄 薄膜形状记忆合金层。 由于加热元件的稳定的电阻温度系数(TCR),可以容易地控制供给到热元件的电压的高度和宽度,从而可以精确地控制振动板的功率,从而具有预定的 图像质量,并且加热元件不直接接触墨水,从而实现喷墨打印头的稳定性。

    Method for managing user key for broadcast encryption
    8.
    发明授权
    Method for managing user key for broadcast encryption 失效
    用于管理用于广播加密的用户密钥的方法

    公开(公告)号:US07752435B2

    公开(公告)日:2010-07-06

    申请号:US11271990

    申请日:2005-11-14

    IPC分类号: H04L29/06

    摘要: A method of managing a user key for a broadcast encryption. The method includes assigning numbers to respective users and arranging the users on a ring-shaped structure in order to map hash chains onto the respective nodes of a ring-shaped structure. The method further includes making random node keys correspond to the respective nodes, one by one, constructing the hash chains from the corresponding node keys using a hash function, and successively mapping the constructed hash chains onto the nodes of the ring-shaped structure.

    摘要翻译: 管理用于广播加密的用户密钥的方法。 该方法包括向各个用户分配号码并将用户排列在环形结构上,以便将散列链映射到环形结构的相应节点上。 该方法还包括使随机节点密钥逐个对应于各个节点,使用散列函数从相应的节点密钥构造散列链,并将构建的散列链连续地映射到环形结构的节点上。

    INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME
    9.
    发明申请
    INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME 有权
    喷墨打印机及其制造方法

    公开(公告)号:US20100128091A1

    公开(公告)日:2010-05-27

    申请号:US12575094

    申请日:2009-10-07

    IPC分类号: B41J2/05 B21D53/76

    摘要: Disclosed are an inkjet printhead and a method of fabricating the same. The inkjet printhead can include a substrate; a chamber layer formed on the substrate and a nozzle layer formed on the chamber layer. The chamber layer defines one or more ink chambers in which ink to be ejected may be accommodated. The nozzle layer includes one or more nozzles through which the ink from the ink chambers are ejected. The nozzle layer may be formed of a cured product of a photosensitive dry film that includes an light absorption material.

    摘要翻译: 公开了一种喷墨打印头及其制造方法。 喷墨打印头可以包括基板; 形成在基板上的室层和形成在室层上的喷嘴层。 室层限定一个或多个墨室,其中可以容纳待排出的墨。 喷嘴层包括一个或多个喷嘴,通过该喷嘴喷射来自墨室的墨。 喷嘴层可以由包含光吸收材料的感光干膜的固化产物形成。

    INKJET PRINT HEAD AND MANUFACTURING METHOD THEREOF
    10.
    发明申请
    INKJET PRINT HEAD AND MANUFACTURING METHOD THEREOF 有权
    INKJET打印头及其制造方法

    公开(公告)号:US20090237451A1

    公开(公告)日:2009-09-24

    申请号:US12254094

    申请日:2008-10-20

    IPC分类号: B41J2/135 B32B37/00 G03F7/20

    摘要: An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.

    摘要翻译: 一种喷墨打印头及其制造方法,所述喷墨打印头包括基板和堆叠在所述基板上以形成油墨通路的第一膜构件。 第一膜构件包括由感光材料制成并形成有油墨通路的路径限定层和由感光材料制成的粘合层,用于将路径限定层稳定地粘合到基底。 利用这种构造,路径限定层和粘合剂层可以同时堆叠在基板上,并且也可以同时被图案化。