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    • 7. 发明授权
    • Receiver quality measurement system for use in digital cordless
telephones and like apparatus
    • 用于数字无绳电话和类似设备的接收机质量测量系统
    • US5839061A
    • 1998-11-17
    • US531049
    • 1995-09-20
    • Alan F. HendricksonJoseph W. Peterson
    • Alan F. HendricksonJoseph W. Peterson
    • H04B1/10H04B7/08H04B17/00
    • H04B1/1027H04B17/318H04B7/08
    • A communication circuit designed to be coupled to a radio receiver so as to receive a data signal and a receive signal strength indicator signal indicative of radio carrier strength therefrom, and further designed to be coupled to a controller, the communications circuit including a first, second, third, and fourth subcircuit. The first subcircuit receives the receive signal strength indicator from the receiver, determines radio carrier strength therefrom, and transfers the determined strength information to the controller. The second subcircuit receives the data signal from the receiver, determines if there are bit error within that signal, and transfers its determinations to the controller. The third subcircuit receives the data signal from the receiver, determines if there is jitter therein, and transfers its determinations to the controller. The fourth subcircuit is coupled to the second and third subcircuits to receive the output thereof, and is further coupled to the controller so as to receive output therefrom, the fourth subcircuit acting in response to the outputs to suppress signal noise.
    • 一种通信电路,被设计为耦合到无线电接收机,以便从其接收指示无线电载波强度的数据信号和接收信号强度指示符信号,并进一步设计为耦合到控制器,所述通信电路包括第一,第二 ,第三和第四分支电路。 第一子电路从接收器接收接收信号强度指示符,从其确定无线电载波强度,并将确定的强度信息传送到控制器。 第二分支电路接收来自接收机的数据信号,确定该信号内是否存在位错误,并将其确定传送给控制器。 第三分支电路接收来自接收机的数据信号,确定其中是否存在抖动,并将其确定传送给控制器。 第四子电路耦合到第二和第三子电路以接收其输出,并且还耦合到控制器,以便从其接收输出,第四子电路响应于输出而起作用以抑制信号噪声。