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    • 13. 发明授权
    • Process for producing thin cast strip
    • 生产薄铸带的工艺
    • US5584337A
    • 1996-12-17
    • US553306
    • 1995-11-21
    • Hiroyuki NakashimaHideki OkaHidemaro TakeuchiShigenori TanakaYoshimori FukudaSatoshi AkamatsuMasafumi MiyazakiYoshikazu Matsumura
    • Hiroyuki NakashimaHideki OkaHidemaro TakeuchiShigenori TanakaYoshimori FukudaSatoshi AkamatsuMasafumi MiyazakiYoshikazu Matsumura
    • B22D11/06B22D11/12B22D11/22
    • B22D11/0622B22D11/0697B22D11/1213
    • In continuous casting a thin carbon cast strip, the scale formed thereon is made thin and made to have a composition suited to working such as cold rolling and pressing. Moreover, an apparatus for inhibiting scale formation is simplified, and the consumption amount of an inert gas is reduced. The cast strip is thus produced efficiently. A carbon steel containing up to 0.5% of C is cooled and solidified by a pair of cooling drums to give a thin cast strip having a thickness up to 10 mm. The cast strip is introduced into a seal chamber, where the strip is held in an Ar gas atmosphere containing up to 5% of oxygen through a temperature region to at least 1,200.degree. C., and the strip is cooled at a rate of at least 10.degree. C./sec through a temperature region to 750.degree. to 800.degree. C., followed by coiling the strip in a coil form with a coiler at a temperature of at least 500.degree. C. and up to 800.degree. C. Furthermore, the atmosphere is formed with a nitrogen gas or exhaust gas. The scale formation is inhibited, and the composition of the scale is controlled by the use of the atmosphere.
    • PCT No.PCT / JP95 / 00549 Sec。 371日期:1995年11月21日 102(e)日期1995年11月21日PCT 1995年3月24日PCT公布。 第WO95 / 26242号公报 日期1995年10月5日在连续铸造薄碳素铸造带材时,其上形成的鳞片变薄,并使其具有适合于如冷轧和压制等加工的组成。 此外,简化了抑制结垢的装置,减少了惰性气体的消耗量。 因此,铸造带材被有效地制造。 含有最多0.5%C的碳钢通过一对冷却鼓冷却并固化,得到厚度达10mm的薄铸造带材。 将铸造带材引入密封室中,其中带材在含有高达5%的氧气的Ar气体气氛中通过温度区域保持至至少1200℃,并且将带材至少以至少的速率 10℃/秒,通过750〜800℃的温度区域,然后在卷取机中以至少500℃和高达800℃的温度卷绕带状卷材。此外, 气氛由氮气或废气形成。 抑制了氧化皮的形成,通过使用气氛来控制氧化皮的组成。
    • 19. 发明授权
    • GPS receiver sharing an antenna ground plane with an EMI shield
    • GPS接收机与EMI屏蔽共享天线接地层
    • US06522291B1
    • 2003-02-18
    • US09716451
    • 2000-11-21
    • Takahide NoguchiKatsuya YamamotoYuichiro NaoiKoji YamamotoHideki OkaHiroki Nishimoto
    • Takahide NoguchiKatsuya YamamotoYuichiro NaoiKoji YamamotoHideki OkaHiroki Nishimoto
    • H04B7185
    • H01Q23/00G01S19/36H01Q1/526H01Q9/0407
    • A compact GPS receiver includes a GPS antenna composed of a patch and a ground plane to receive high frequency satellite signals, an analog circuit which processes the high frequency satellite signals into a digital signal, a digital circuit which processes the digital signal to compute positional coordinates of the GPS antenna, and an interface connector which outputs the positional coordinates to an external device. A substrate is provided to support the GPS antenna, the analog circuit, the digital circuit, and the interface connector. An EMI (electromagnetic interference) shield is provided to shield at least the digital circuit to block a noise developing at the digital circuit from interfering with the GPS antenna. The GPS antenna is mounted on the EMI shield to share the ground plane with the EMI shield, while keeping the patch insulated electrically from the EMI shield. Thus, the GPS receiver can be made compact by making the use of the EMI shield also as the ground plane of the antenna, while assuring to block the noise from interfering with the antenna and affording sufficient antenna gain with the increased ground plane.
    • 紧凑型GPS接收机包括由贴片和接地平面组成的GPS天线以接收高频卫星信号,将高频卫星信号处理成数字信号的模拟电路,处理数字信号以计算位置坐标的数字电路 的GPS天线,以及将位置坐标输出到外部设备的接口连接器。 提供基板以支持GPS天线,模拟电路,数字电路和接口连接器。 提供EMI(电磁干扰)屏蔽以屏蔽至少数字电路以阻止在数字电路处产生的噪声干扰GPS天线。 GPS天线安装在EMI屏蔽层上,与EMI屏蔽共享接地层,同时保持贴片与EMI屏蔽电绝缘。 因此,通过将EMI屏蔽物也用作天线的接地平面,可以使GPS接收机紧凑化,同时确保阻止噪声干扰天线,并通过增加的接地平面提供足够的天线增益。