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公开(公告)号：US3764903A
公开(公告)日：1973-10-09
申请号：US3764903D
申请日：1972-08-07
Applicant: RCA CORP
Inventor： GRISWOLD F
CPC classification number: G01R25/00
Abstract: A phase measuring system includes apparatus for measuring the difference in phase between a periodic input signal and a reference signal while using the same reference signal as a clock whose periods are counted as a measure of the difference in phase between the reference signal and the input signal. This is accomplished by first multiplying the phase of the input signal and then dividing its frequency and phase by a given amount and comparing this divided signal with the reference signal whose frequency and phase is also divided by the same amount. The two divided signals serve to respectively enable and disable a gate which passes the reference signal to a counter whose count manifests the phase difference between the two signals being compared.
Abstract translation: 相位测量系统包括用于测量周期性输入信号和参考信号之间的相位差的装置，同时使用相同的参考信号作为其周期被计数为参考信号和输入信号之间的相位差的度量的时钟 。 这通过首先将输入信号的相位相乘，然后将其频率和相位除以给定量并将该分频信号与频率和相位也被相等量的参考信号进行比较来实现。 两个划分的信号用于分别启用和禁用将参考信号传递到计数器的门，其计数表示被比较的两个信号之间的相位差。
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公开(公告)号：US3793594A
公开(公告)日：1974-02-19
申请号：US3793594D
申请日：1972-02-18
Applicant: RCA CORP
Inventor： GRISWOLD F
CPC classification number: H03L7/16
Abstract: A translation loop with a voltage controlled oscillator (VCO) for generating a plurality of discrete frequencies that are unambiguously selected above or below a reference frequency by calibrating the VCO to the reference frequency without the presence of an offset frequency, a timed gate control subsequently gating the offset frequency for mixing in the loop. A phase detected error in the mixed signals controls the VCO to alter its frequency from the reference frequency to the frequency corresponding to the sum or difference frequency by a control sweep voltage positive or negative going to correspondingly increase or lower the VCO frequency.
Abstract translation: 一种具有压控振荡器（VCO）的平移环路，用于通过在不存在偏移频率的情况下将VCO校准到基准频率而产生多个离散频率，该离散频率被明确地选择在参考频率之上或之下，定时门控制随后门控 在循环中混合的偏移频率。 混合信号中的相位检测误差控制VCO通过控制扫描电压正或负改变其频率从参考频率到对应于和或差频率的频率，以相应地增加或降低VCO频率。
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公开(公告)号：US3769602A
公开(公告)日：1973-10-30
申请号：US3769602D
申请日：1972-08-07
Applicant: RCA CORP
Inventor： GRISWOLD F
Abstract: An analog phase tracker includes a phase tracking loop comprising a phase detector, a voltage controlled oscillator, a plurality of dividers and at least one multiplier for altering the phase of the voltage controlled oscillator output solely by dividing the oscillator output phase by the product of all of the dividers, while altering the frequency of the voltage controlled oscillator output by both dividing the frequency by the product of the divisors and multiplying the frequency by an integer equal to at least one of the divisors such that the frequency and phase of a signal derived by the dividers and multipliers is substantially the same as an applied periodic signal whose repetition rate may be any one of plurality of predetermined values.
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