BANDPASS FILTER NETWORK AND METHOD FOR BANDPASS FILTERING SIGNALS USING MULTIPLE ACOUSTIC RESONATORS

    公开(公告)号:JP2006345533A

    公开(公告)日:2006-12-21

    申请号:JP2006160597

    申请日:2006-06-09

    Abstract: PROBLEM TO BE SOLVED: To provide a narrow-band bandpass filter network and method for bandpass filtering signals with narrow bandwidth of a desired frequency band (ISM 2.4 band or the like). SOLUTION: The bandpass filter network and method for bandpass filtering signals uses multiple acoustic resonators. The acoustic resonators may be Film Bulk Acoustic Resonators (FBARs) or Surface Acoustic Wave (SAW) resonators. The acoustic resonators are separated by one or more electrical components (for example, multiple transistors of a single amplifier) to provide isolation between the multiple acoustic resonators. COPYRIGHT: (C)2007,JPO&INPIT

    Calibrating communication link using frequency ramp
    2.
    发明专利
    Calibrating communication link using frequency ramp 审中-公开
    使用频率RAMP校准通信链路

    公开(公告)号:JP2007089169A

    公开(公告)日:2007-04-05

    申请号:JP2006253699

    申请日:2006-09-20

    CPC classification number: H03J7/18

    Abstract: PROBLEM TO BE SOLVED: To provide a method for calibrating a communication link within a predetermined frequency range. SOLUTION: The method for calibrating the communication link using frequency ramps to locate the frequency response of a receiver includes steps of:generating a transmission signal that includes a series of frequency ramps; and determining a timing of gain peaks in a receiver in response to the frequency ramps in the transmission signal. The timing of gain peaks in the receiver indicates the frequency response of the receiver and is used to determine an adjustment to the transmission signal so that the transmission signal adapts to the frequency response of the receiver. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种在预定频率范围内校准通信链路的方法。 解决方案:使用频率斜坡校准通信链路以定位接收机的频率响应的方法包括以下步骤:产生包括一系列频率斜坡的发送信号; 以及响应于所述发送信号中的频率斜坡来确定接收机中的增益峰值的定时。 接收机中增益峰值的时序表示接收机的频率响应,用于确定对发送信号的调整,以使发送信号适应接收机的频率响应。 版权所有(C)2007,JPO&INPIT

Patent Agency Ranking