Method and system for image verification to prevent messaging abuse
    5.
    发明授权
    Method and system for image verification to prevent messaging abuse 有权
    用于图像验证的方法和系统,以防止信息滥用

    公开(公告)号:US07856477B2

    公开(公告)日:2010-12-21

    申请号:US10817126

    申请日:2004-04-02

    IPC分类号: G06F15/16

    CPC分类号: G06F21/566 H04L51/12

    摘要: The invention is directed to a system and method for determining if a “spam” message is originating from a messaging account by challenging a particular client's outbound email usage with a test that requires verification of content that is easily understood by a human being, not an automated computer program such as those used by “spammers.” If a limit on the number of recipients for outbound messages has been exceeded, a test is presented the next time a client attempts to send a message. The client must successfully answer the test within a relatively short period of time or else the ability to send messages will be disabled. Once disabled, the client can reinstate the ability to send messages by contacting a representative of the message system out of band, e.g., a telephone call to confirm legitimate outbound email use.

    摘要翻译: 本发明涉及一种用于确定“垃圾邮件”消息是否源于消息账户的系统和方法,其通过对需要对人容易理解的内容进行验证的测试来挑战特定客户端的出站电子邮件使用,而不是 自动化计算机程序,例如“垃圾邮件发送者”使用的计算机程序。如果超出了出站邮件的收件人数量限制,则下次客户端尝试发送邮件时会显示一个测试。 客户端必须在相对较短的时间内成功应答测试,否则发送消息的能力将被禁用。 一旦禁用,客户端可以通过联系消息系统的代表(例如,呼叫来确认合法的出站电子邮件使用)来恢复发送消息的能力。

    Plate roofing material
    6.
    发明授权
    Plate roofing material 失效
    板屋面材料

    公开(公告)号:US5293727A

    公开(公告)日:1994-03-15

    申请号:US796561

    申请日:1991-11-22

    IPC分类号: E04D1/26 E04D1/00

    CPC分类号: E04D1/265

    摘要: A plate roofing material is divided into an exterior portion which is exposed when a roof is covered with a plate roofing material and an overlap portion which is concealed under an exterior portion of a plate roofing material superimposed on the overlap portion of the plate roofing material. At least one longitudinal groove is formed in the surface of the exterior portion. The longitudinal groove has wide side surface parts alternating with narrow side surface parts with sidewalls formed of a plurality of stepped portions. The longitudinal groove has a linear bottom part having an approximately constant depth and is approximately V-shaped in cross section.

    摘要翻译: 板屋顶材料被分成当屋顶被屋顶材料覆盖时被暴露的外部部分和隐藏在叠加在板屋顶材料的重叠部分上的板屋顶材料的外部下方的重叠部分。 至少一个纵向槽形成在外部部分的表面中。 纵向槽具有宽的侧表面部分,与具有由多个阶梯部分形成的侧壁的窄侧表面部分交替。 纵向槽具有大致恒定的深度的直线底部,并且截面为大致V形。