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    • 33. 发明申请
    • FM receiver
    • FM接收机
    • US20080194220A1
    • 2008-08-14
    • US12068525
    • 2008-02-07
    • Jun Suzuki
    • Jun Suzuki
    • H04B1/16H04B1/10
    • H04B1/10
    • An FM receiver that is suitable for reducing a transmission bandwidth WF of a bandpass filter to remove adjacent-channel interference, and increasing WF to prevent audio distortion. A detection output signal SOUT is inputted to an HPF 122 when a reception electric field strength signal SM-DC indicates an intermediate or stronger electric field. In a weak electric field, an AC component signal SM-AC, which is extracted from an intermediate signal SIF1 prior to detection and which has fewer high-pass noise components than SOUT, is inputted to the HPF 122. A control circuit 120 detects a case as an adjacent-channel interference state when a large amount of high-pass components passes through the HPF 122, and reduces WF of an IFBPF 70 in order to remove adjacent-channel interference. When a small amount of high-pass components is transmitted, WF is increased in order to minimize audio distortion.
    • 一种FM接收机,适于减少带通滤波器的传输带宽W SUB以消除相邻信道干扰,并增加W SUB以防止音频失真。 当接收电场强度信号S M-DC <>表示中间或更强的电场时,检测输出信号S OUT OUT被输入到HPF 122。 在弱电场中,在检测之前从中间信号S IF1&lt; 1&gt;提取并且具有较少的高通噪声分量的AC分量信号S M-AC&lt; 输入到HPF 122.当大量的高通分量通过HPF 122时,控制电路120将情况检测为相邻信道干扰状态,并且减少W 为了去除相邻信道干扰,IFBPF70的 。 当发送少量的高通分量时,为了最小化音频失真,增加了W >F
    • 39. 发明申请
    • Switch and network bridge apparatus
    • 交换机和网桥设备
    • US20070198763A1
    • 2007-08-23
    • US11707084
    • 2007-02-16
    • Jun SuzukiYouichi HidakaJunichi Higuchi
    • Jun SuzukiYouichi HidakaJunichi Higuchi
    • G06F13/00
    • G06F13/4022
    • A PCI Express switch which connects a plurality of peripheral devices to an arbitrary one of a plurality of CPUs through an Ethernet is constituted by a plurality of upstream and downstream PCI Express-network bridges, an Ethernet switch, and a system manager. Each of the upstream and downstream PCI Express-network bridges includes a PCI Express adapter which terminates a link of a PCI Express bus, a network adapter which terminates a link to the Ethernet switch, and a control unit which encapsulates a TLP in a frame, the destination of which is a MAC address of a bridge to which the destination is connected to transmit and receive the frame. Because the switch according to the present invention comprising a plurality of upstream PCI Express-network bridges and a plurality of downstream PCI Express-network bridges connected to the plurality of upstream PCI Express network bridges through a network is equivalent to a conventional PCI Express switch, it is needless to change a conventional PCI software.
    • 通过以太网将多个外围设备连接到多个CPU中的任意一个的PCI Express交换机由多个上游和下游PCI Express网络桥,以太网交换机和系统管理器构成。 上游和下游PCI Express网络桥接器中的每一个包括PCI Express适配器,其终止PCI Express总线的链路,终止到以太网交换机的链路的网络适配器以及将TLP封装在帧中的控制单元, 其目的地是目的地与之连接以发送和接收帧的网桥的MAC地址。 因为包括通过网络连接到多个上游PCI Express网桥的多个上游PCI Express网络桥和多个下游PCI Express网桥的根据本发明的交换机等同于传统的PCI Express交换机, 不用改变传统的PCI软件。