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    • 1. 发明申请
    • System and device for transmission using ultrawide band pass filter
    • 使用超宽带通滤波器进行传输的系统和设备
    • US20050064823A1
    • 2005-03-24
    • US10935081
    • 2004-09-08
    • Akihiko SaitoHiroshi Harada
    • Akihiko SaitoHiroshi Harada
    • H01P1/203H01P1/215H04B1/04H04B1/16H04B1/02
    • H01P1/20363H01P1/215H04B1/7172
    • Disclosed are a transmission system and a device of small scale, low cost and low power for transmitting signal of a rate over 1 Gbps using a small scale and low loss ultrawide band pass filter (UWBPF). The transmission system comprises the steps of generating pulse signal by a short pulse generator, band-limiting the pulse signal by passing it through a waveshape forming filter, and transmitting the resulting pulse signal in a certain frequency band through a UWBPF, and receiving and passing the signal wave through a UWBPF of the same frequency range and introducing the signal wave through a pulse detector into the determining part. The UWBPF used is prepared by forming a distribution constant circuit on a lossy substrate having low-pass function.
    • 公开了一种小规模,低成本和低功率的传输系统和装置,用于使用小规模和低损耗超宽带通滤波器(UWBPF)传输速率超过1Gbps的信号。 传输系统包括通过短脉冲发生器产生脉冲信号的步骤,通过使其通过波形形成滤波器对脉冲信号进行带限制,并通过UWBPF将得到的脉冲信号传输到某一频带,并接收和传递 信号波通过相同频率范围的UWBPF,并将信号波通过脉冲检测器引入确定部分。 使用的UWBPF通过在具有低通功能的有损基板上形成分布常数电路来制备。
    • 2. 发明授权
    • Band pass filter for GHz-band
    • 用于GHz频带的带通滤波器
    • US06995632B2
    • 2006-02-07
    • US10756398
    • 2004-01-14
    • Akihiko SaitoHiroshi Harada
    • Akihiko SaitoHiroshi Harada
    • H03H7/01
    • H01P1/203H01P1/215
    • Disclosed is a high-frequency band pass filter of simple structure for use in a frequency range from hundreds of MHz to over ten GHz. The band pass filter comprises a magnetic loss sheet 1 prepared by dispersing fine powder of averaged particle size up to 30 μm of a soft magnetic metal such as an Fe—Cr—Al alloy, an input signal line 2 and an output signal line 3 made of a conductive strip disposed in serial direction with a gap between them, a capacitance means connecting the opposite ends of the lines and a GND line 4 disposed on the reverse side of the sheet. The capacitance means may be either a chip condenser 5, or that formed by disposing an internal line 7 of another conductive strip with intermediation of insulating film 6 to bridge on the input signal line 2 and the output signal line 3 to have overlapping parts.
    • 公开了一种结构简单的高频带通滤波器,用于从数百MHz到10 GHz的频率范围。 带通滤波器包括通过将平均粒径为30μm的细粉末的Fe-Cr-Al合金,输入信号线2和输出信号线3制成的磁损耗片1 导电条沿串联方向设置在它们之间的间隙,连接线的相对端的电容装置和设置在片材背面的GND线4。 电容装置可以是片式电容器5,也可以是通过将绝缘膜6的另一导电条的内部线7设置在输入信号线2和输出信号线3上而具有重叠部分而形成的电容装置。
    • 9. 发明授权
    • Wireless communication system, and interference preventing method
    • 无线通信系统和防干扰方法
    • US08724655B2
    • 2014-05-13
    • US13518978
    • 2010-12-15
    • Chin-Sean SumHiroshi HaradaFumihide KojimaZhou Lan
    • Chin-Sean SumHiroshi HaradaFumihide KojimaZhou Lan
    • H04J3/16
    • H04W16/14H04W74/0808
    • An interference preventing method prevents communication interference between two or more wireless communication networks having mutually different physical layers, in which wireless communication is performed between a plurality of devices and a coordinator. By using a coordinator of each of the wireless communication networks, a scanning period for scanning a coexistence notification signal that is transmitted from a coordinator of another wireless communication network for a predetermined period is arranged before a first super frame immediately after input of power. The CB of the coordinator is transmitted at least once or more for one super frame, and, in a case where the CB transmitted from the coordinator of the other wireless communication network is acquired during the scanning period, control for preventing communication interference with the other wireless communication network is performed.
    • 防干扰方法防止在多个设备和协调器之间执行无线通信的具有相互不同的物理层的两个或更多个无线通信网络之间的通信干扰。 通过使用每个无线通信网络的协调器,在紧接着输入功率之后,在紧接在第一超级帧之前,布置用于扫描从另一无线通信网络的协调器发送预定时段的共存通知信号的扫描周期。 对于一个超帧,协调器的CB至少发送一次或更多,并且在扫描期间中从其他无线通信网络的协调器发送的CB的情况下,用于防止与其他无线通信网络的通信干扰的控制 执行无线通信网络。