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    • 95. 发明授权
    • Thermal noise random pulse generator and random number generator
    • 热噪声随机脉冲发生器和随机数发生器
    • US06542014B1
    • 2003-04-01
    • US09830927
    • 2001-05-02
    • Takeshi Saito
    • Takeshi Saito
    • H03K384
    • G06F7/588
    • A random number generator has a simple configuration using know inexpensive electronic parts and can generate the true physical random numbers at a required generation speed. Such a random number generator can provide the true physical random numbers to any sectors of society at dramatically low cost A random pulse generator comprises a thermal noise generating element (2) having a resistor, a conductor or a semiconductor such as a diode adapted to generate thermal noises Hen no electric current is supplied to them, an analog-amplifier circuit for amplifying the irregular potential generated from the thermal noise generating element and a waveform shaping circuit (6) adapted to take out the output of the amplifier circuit as random rectangular pulse signals. A thermal noise random number generator comprises, in addition to the above components, an n-bit counter (n being an integer) for measuring the time interval between a random pulse signal output from the waveform shaping circuit (6) and the immediately succeeding random pulse signal and is adapted to output the count of the n-bit counter as natural random number.
    • 随机数发生器具有使用已知廉价电子部件的简单配置,并且可以以所需的生成速度生成真实的物理随机数。 这样的随机数发生器可以以极低的成本向社会的任何部门提供真实的物理随机数。随机脉冲发生器包括具有电阻器,导体或半导体的热噪声产生元件(2),二极管适用于产生 热噪声Hen没有电流供给,用于放大从热噪声产生元件产生的不规则电位的模拟放大器电路和适于将放大器电路的输出取出为随机矩形脉冲的波形整形电路(6) 信号。 除了上述部件之外,热噪声随机数发生器还包括用于测量从波形整形电路(6)输出的随机脉冲信号与紧随其后的随机的时间间隔之间的时间间隔的n位计数器(n为整数) 脉冲信号,并且适于将n位计数器的计数作为自然随机数输出。
    • 100. 发明授权
    • ATM bridge device and ATM bridging scheme for realizing efficient ATM
bridge interconnection
    • ATM桥接设备和ATM桥接方案,实现高效的ATM桥互连
    • US5732071A
    • 1998-03-24
    • US366597
    • 1994-12-29
    • Takeshi SaitoHiroshi EsakiShigeo Matsuzawa
    • Takeshi SaitoHiroshi EsakiShigeo Matsuzawa
    • H04Q3/00H04L12/46H04L12/66H04L12/721H04L12/951H04Q11/04
    • H04Q11/0478H04L12/4608H04L12/66H04L2012/5615H04L2012/5619
    • A device and a scheme for realizing the bridge interconnection in the ATM network efficiently. In the bridge device, a MAC frame transmitted from the interface with respect to the ATM network is transmitted selectively to either a point-to-point ATM connection interconnecting this bridge device and another bridge device or a multicast ATM connection interconnecting this bridge device and other bridge devices, while MAC addresses and identifiers of point-to-point ATM connections are registered in correspondences in a table. In a case this bridge device directly accommodates emulation hosts for emulating another non-ATM network through ATM connections having this bridge device as a starting point, a type of a MAC frame entered from the interface with respect to the ATM network is identified as either a MAC frame transmitted from any of the emulation hosts or a MAC frame transmitted from another bridge device connected with this bridge device by a bridge connection through the ATM network, and the MAC frame entered from the interface is transmitted selectively to ATM connections of the ATM network according to the identified type.
    • 一种有效实现ATM网络桥接互连的设备和方案。 在桥装置中,从接口相对于ATM网络发送的MAC帧被选择性地发送到互连该桥接设备和互连该桥接设备的另一个桥接设备或组播ATM连接的点对点ATM连接和其他 桥接设备,而MAC地址和点到点ATM连接的标识符以对应的方式登记在表中。 在这种情况下,该桥接器件直接容纳用于通过具有该桥接器件的ATM连接作为起点仿真另一个非ATM网络的仿真主机,从接口相对于ATM网络输入的MAC帧的类型被识别为 从任何仿真主机发送的MAC帧或通过ATM网络通过桥接连接的与该桥接设备连接的另一个桥接设备发送的MAC帧,并且从接口输入的MAC帧被选择性地传送到ATM网络的ATM连接 根据确定的类型。