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    • 3. 发明申请
    • Variable-frequency flyback converter with synchronous rectification function
    • 具有同步整流功能的变频反激式转换器
    • US20050276079A1
    • 2005-12-15
    • US10911558
    • 2004-08-05
    • Tae ParkSung KimChan Jang
    • Tae ParkSung KimChan Jang
    • H02M3/28H02M3/335
    • H02M3/33576
    • Disclosed herein is a variable-frequency flyback. The flyback converter comprises a flyback transformer having secondary windings for drive and detection for providing first and second induced voltages induced from an input voltage in first and second turn ratios with a primary winding, respectively, a voltage detector for detecting the second induced voltage, a switching controller for determining, on the basis of a level of the voltage detected by the voltage detector, whether a current load state is the mini load state and outputting a first switching signal according to a result of the determination, a first switch for switching the supply of the second induced voltage in response to the second induced voltage and the first switching signal, and a synchronous rectifier for performing a switching operation depending on a state of the first switch, the synchronous rectifier having its source and drain connected to any one of a voltage output line or ground line connected to the drive secondary winding and its gate connected to the first switch.
    • 这里公开的是可变频率回扫。 反激式转换器包括具有用于驱动和检测的次级绕组的回扫变压器,用于分别用初级绕组提供从第一和第二匝数比的输入电压感应的第一和第二感应电压,用于检测第二感应电压的电压检测器 开关控制器,用于根据由电压检测器检测到的电压的电平,根据确定结果确定当前负载状态是微型负载状态并输出第一开关信号;第一开关,用于切换 响应于第二感应电压和第一开关信号提供第二感应电压,以及同步整流器,用于根据第一开关的状态执行开关操作,其源极和漏极连接到第一开关的任一个 连接到驱动次级绕组的电压输出线或地线,其栅极连接到f 第一开关
    • 8. 发明授权
    • Method for providing early-media service based on session initiation protocol
    • 基于会话发起协议提供早期媒体业务的方法
    • US08265233B2
    • 2012-09-11
    • US12494499
    • 2009-06-30
    • Wooyong ChoiSung KimSangyun Lee
    • Wooyong ChoiSung KimSangyun Lee
    • H04M1/64H04L12/66
    • H04L65/1096H04L65/1006H04L65/1063H04L65/1069H04M3/42017
    • The present invention relates to a method of providing an early media service based on a session initiation protocol (SIP), wherein early media of a multimedia form can be provided under SIP-based B2BUA mode operation. According to the present invention, in a case where early media are provided to an originating terminal when a call connection with a terminating terminal is established at the request of the originating terminal, the early media is provided in the form of multimedia data, such as text, image, moving image, flash animation and the like, as well as audio data, and thus users desires are fulfilled and users satisfactions are maximized. In addition, with individual operation management of the terminating terminal and the originating terminal according to B2BUA mode operation based on the session initiation protocol and an early session initiation with the originating terminal, an early media service can be normally provided to the originating terminal even when the terminating terminal is in an abnormal operation state.
    • 本发明涉及一种基于会话发起协议(SIP)提供早期媒体业务的方法,其中可以在基于SIP的B2BUA模式操作下提供多媒体形式的早期媒体。 根据本发明,在与起始终端的请求建立与终端的呼叫连接的情况下,向初始终端提供早期媒体的情况下,以多媒体数据的形式提供早期媒体,例如 文本,图像,运动图像,闪光动画等,以及音频数据,从而满足用户期望并使用户满意度最大化。 另外,通过基于会话发起协议的B2BUA模式操作对终端终端和始发终端进行个体操作管理,以及与始发终端的早期会话发起,即使在始发终端也可以提供早期媒体业务 终端处于异常运行状态。
    • 9. 发明授权
    • System and method for transmitting personal networking-based blog post, and server applied to the same
    • 基于个人网络的博客文章传输的系统和方法,以及应用于服务器的服务器
    • US08065366B2
    • 2011-11-22
    • US12676620
    • 2008-10-17
    • Chang-Su LeeDong-Chan LimSu-Kyung KimSung KimSil-Keun Hwang
    • Chang-Su LeeDong-Chan LimSu-Kyung KimSung KimSil-Keun Hwang
    • G06F15/16
    • G06Q30/02G06Q10/10H04L51/32
    • Disclosed are a system and method for distributing a blog post based on personal networking, and a server to be applied thereto. The system includes a writer terminal unit, which makes a series of settings for forming a blog post containing contents posted by a writer through the writer's blog registered with an online community service, and then distributes the blog post to at least one or more acquaintances blogs registered to personal networking with the writer, sharer/distributor terminal units, which make setting for posting the blog post on the acquaintances blogs, or distributing the blog post to at least one or more other acquaintances blogs registered to personal networking with sharers/distributors, and a service management server, which differentially provides management authority for the blog post to each of the writer and the sharers/distributors, and integrally manages the blog post distributed to a plurality of blogs, based on a path along which the blog post is distributed. The system and method distributes a blog post containing a writer's specific purpose of posting, such as a help-wanted notice, step by step through blogs registered with an online community service, based on trust relationships, thereby providing a notice platform, which is so efficient that an advertiser who writes a blog post, such as a help-wanted notice, can quickly find a qualified person, based on his/her trust relationships.
    • 公开了一种用于基于个人网络分发博客文章的系统和方法以及要应用于其的服务器。 该系统包括一个作家终端单元,其用于形成博客文章的一系列设置,其中包含由作者通过在线社区服务注册的作者的博客发布的内容,然后将该博客文章分发到至少一个或多个熟人博客 注册到与作者,分销商/分销商终端单元的个人网络,这些终端单元在熟人博客上发布博客文章的设置,或者将博客文章分发到至少一个或多个其他熟人登记到与共享者/分发者的个人网络的博客, 以及服务管理服务器,其基于分发给博客文章的路径,分散到多个博客的博客文章,分别向每个作者和共享者/分发者提供博客文章的管理权限,并且整合管理博客帖子 。 系统和方法基于信任关系分发包含作者特定发布目的的博客文章,如帮助通知,逐步通过在线社区服务注册的博客,从而提供通知平台 撰写博客文章的广告客户(例如帮助通知)可以根据他/她的信任关系快速找到合格的人员。