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25 条记录 (耗时 0.03 秒)

    Automatic IF selectivity for radio receiver system
    21.
    发明授权
    Automatic IF selectivity for radio receiver system 失效
    无线电接收机系统的自动中频选择性

    公开(公告)号：US4352208A

    公开(公告)日：1982-09-28

    申请号：US256760

    申请日：1981-04-23

    申请人： Daniel R. Schroeder

    发明人： Daniel R. Schroeder

    IPC分类号： H03J1/00 ,  H03J3/08 ,  H04B1/16

    CPC分类号： H03J1/005

    摘要： A microprocessor controlled radio receiver system for switching bandwidths of an intermediate frequency stage from a normally scanning mode using a relatively narrow bandwidth to a second mode using a relatively wide bandwidth automatically when there are no interfering signals from adjacent channels of a channel or station selected for receiving. Upon selection of a channel for listening the microprocessor controlled synthesizer causes the synthesizer to scan up one adjacent channel and down one adjacent channel to determine if there is an interfering signal therefrom and then returns to the selected channel. In the event of no interfering signal from an adjacent channel, switching is effected in the IF stage from a narrow bandwidth to a wide bandwidth to improve the quality of reception. If there is an adjacent channel signal detected of sufficient IF energy next to the selected channel, then the narrow bandwidth mode used during the scan will be maintained.

    摘要翻译： 一种微处理器控制的无线电接收机系统，用于当没有干扰信号从相对较窄的带宽到相对较窄的带宽的第二模式时，使用相对宽的带宽自动从正常扫描模式切换中频段的带宽， 接收。 在选择用于收听微处理器控制的合成器的频道时，合成器将扫描一个相邻信道并向下扫描一个相邻信道，以确定是否存在干扰信号，然后返回到所选频道。 在没有来自相邻信道的干扰信号的情况下，在IF级从窄带宽到宽带宽进行切换，以提高接收质量。 如果存在检测到所选通道旁边的足够的IF能量的相邻信道信号，则将维持在扫描期间使用的窄带宽模式。

    Dual rate bi-directional switch
    22.
    发明授权
    Dual rate bi-directional switch 失效
    双速双向开关

    公开(公告)号：US4301378A

    公开(公告)日：1981-11-17

    申请号：US98424

    申请日：1979-11-29

    申请人： Donald C. Cohlman ,  Daniel R. Schroeder

    发明人： Donald C. Cohlman ,  Daniel R. Schroeder

    IPC分类号： H01H23/00 ,  H01H25/00 ,  H03G3/04 ,  H03J1/22 ,  H01H23/30

    CPC分类号： H03J1/22 ,  H03G3/04 ,  H01H23/003 ,  H01H25/008 ,  Y10T307/76

    摘要： A dual rate bi-directional switching system is utilized to control a radio receiver function. An actuator rotates and translates in order to sequentially actuate selected electrical switches which are coupled to a logic circuit by means of two conductors. The logic circuit establishes logic signals to control both the direction and rate of change of the function in response to the position of the actuator.

    摘要翻译： 利用双速率双向交换系统来控制无线电接收机功能。 致动器旋转和平移，以便依次致动通过两个导体耦合到逻辑电路的所选择的电开关。 逻辑电路建立逻辑信号，以响应于致动器的位置来控制功能的变化的方向和速率。

    Optical interconnect system with layered lightpipe
    23.
    发明授权
    Optical interconnect system with layered lightpipe 有权
    具有分层光管的光互连系统

    公开(公告)号：US06842571B2

    公开(公告)日：2005-01-11

    申请号：US10235735

    申请日：2002-09-05

    申请人： Wayne C. Kramer ,  Daniel R. Schroeder ,  Hans R. Merz ,  Gerald W. Ballard ,  Robert R. Kornowski ,  Jang-Hun Yeh ,  James K. Gehrke

    发明人： Wayne C. Kramer ,  Daniel R. Schroeder ,  Hans R. Merz ,  Gerald W. Ballard ,  Robert R. Kornowski ,  Jang-Hun Yeh ,  James K. Gehrke

    IPC分类号： G02B6/43 ,  G02B6/26 ,  G02B6/42

    CPC分类号： G02B6/43

    摘要： An optical interconnect system includes a stacked arrangement of optical lightpipe layers, one layer assigned to each emitter of the system. The various optical lightpipe layers are designed to provide the same level of light to each receptor of the system. The optical lightpipe layers are very thin, allowing the emitter and receptor devices of the system to span the entire optical lightpipe layer assembly. The path loss between every emitter and every receptor over the entire system can be balanced, i.e., made substantially the same, or otherwise set as desired with respect to individual emitters and receptors.

    摘要翻译： 光学互连系统包括光学管层的堆叠布置，一层分配给系统的每个发射器。 各种光学光管层被设计成为系统的每个受体提供相同水平的光。 光学光管层非常薄，允许系统的发射器和接收器件跨越整个光学光管层组件。 在整个系统中每个发射器和每个受体之间的路径损耗可以平衡，即基本上相同，或根据需要相对于各个发射器和受体而设定。