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    • 5. 发明申请
    • MOBILE COMMUNICATION TERMINAL AND SIGNAL RELAY METHOD
    • 移动通信终端和信号继电器
    • US20090137243A1
    • 2009-05-28
    • US12324947
    • 2008-11-28
    • Noriyuki TSUTSUMIShunji MiuraKazuto Nakajima
    • Noriyuki TSUTSUMIShunji MiuraKazuto Nakajima
    • H04W4/00
    • H04L12/1827H04L12/1886H04L12/189H04N7/148H04N7/15
    • An object of the present invention is to lower communication costs using a simple configuration by reducing traffic on a communication network resulting from data communications for video conference use. A mobile communication terminal has an audio/video input portion which creates a parent terminal transmission signal including an audio signal and a video signal directly input from outside, a short-range communication portion which receives child terminal transmission signals including audio signals and video signals from a plurality of mobile communication terminals via short-range communications, a signal synthesizer which synthesizes the parent terminal transmission signal with the plurality of child terminal transmission signals and outputs a synthesized signal, a switching portion which selects a signal from among the parent terminal transmission signal, the child terminal transmission signals and the synthesized signal, and a mobile communication portion which transmits the signal selected by the switching portion to a mobile communication terminal via a mobile communication network.
    • 本发明的一个目的是通过减少通过视频会议使用的数据通信产生的通信网络上的业务,通过简单的配置来降低通信成本。 移动通信终端具有音频/视频输入部分,其创建包括从外部直接输入的音频信号和视频信号的母端发送信号,短距离通信部分接收包括音频信号和视频信号的子终端发送信号, 通过短距离通信的多个移动通信终端,合成母终端发送信号与多个子终端发送信号并输出​​合成信号的信号合成器,从父终端发送信号中选择信号的切换部 ,子终端发送信号和合成信号,以及移动通信部,其通过移动通信网络向移动通信终端发送由切换部选择的信号。
    • 6. 发明授权
    • Method of forming a collar for heating exchanger fin and die for use
therein
    • 形成用于加热交换器翅片和模具的套环的方法
    • US4956989A
    • 1990-09-18
    • US334886
    • 1989-03-30
    • Kazuto Nakajima
    • Kazuto Nakajima
    • B21D19/08B21D22/04B21D53/04
    • B21D22/04B21D19/088
    • A method of forming a collar-shaped protrusion on thin plate material by relatively bringing a forming punch having the outer diameter varying stepwise into the forming hole of a forming die and during forming, punching a small diameter hole by means of a punch-through punch incorporated in said forming die. During the remainder of forming, ironing and burring are performed on the protrusion to form a collar for heat exchanger fins. The die set shaped for carrying out the steps is also included. Since these steps can be performed as a single continuous series of steps, heat exchanger fins of high accuracy can be manufactured with fewer tools, and at less cost and in less time than heretofore.
    • 通过相对地使具有外径逐渐变化的成形冲头相对于成型模具的成形孔形成,并且在成形期间通过穿孔冲头冲压小直径孔,从而在薄板材料上形成凸缘状突起的方法 并入所述成型模具中。 在成形的剩余部分中,在突起上进行熨烫和翻边以形成热交换器翅片的套环。 还包括用于执行台阶的模具。 由于这些步骤可以作为单个连续的一系列步骤来执行,所以可以用较少的工具制造高精度的热交换器翅片,并且以比以前更少的成本和更少的时间来制造。