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    • 9. 发明授权
    • Method and apparatus for generating oscillating signals
    • 用于产生振荡信号的方法和装置
    • US07592878B2
    • 2009-09-22
    • US11696875
    • 2007-04-05
    • Russell John FaggCharles E. Wheatley, III
    • Russell John FaggCharles E. Wheatley, III
    • H03L1/00
    • H03L1/022H03B5/06H03B5/1265H03B2200/0066H03B2200/0094H03L3/00H04B2001/6908
    • An apparatus for generating an oscillating signal that includes a circuit to accelerate the time in which an oscillating signal reaches a defined steady-state condition from a cold start. The apparatus includes an oscillating circuit to generate an oscillating signal; a first circuit to supply a first current to the oscillating circuit; and a second circuit to supply a second current to the oscillating circuit, wherein the first and second currents are adapted to reduce the time duration for the oscillating signal to reach a defined steady-state condition. The apparatus may be useful in communication systems that use low duty cycle pulse modulation to establish one or more communications channels, whereby the apparatus begins generating an oscillating signal at approximately the beginning of the pulse and terminates the oscillating signal at approximately the end of the pulse.
    • 一种用于产生振荡信号的装置,其包括用于加速从冷启动振荡信号达到确定的稳态状态的时间的电路。 该装置包括产生振荡信号的振荡电路; 向振荡电路提供第一电流的第一电路; 以及向振荡电路提供第二电流的第二电路,其中第一和第二电流适于减小振荡信号达到所定义的稳态条件的持续时间。 该装置在使用低占空比脉冲调制以建立一个或多个通信信道的通信系统中可能是有用的,由此该装置在大约开始的脉冲处开始产生振荡信号,并在脉冲的大致末端终止振荡信号 。