专利汇可以提供Digital harmonic rejecting phase detector专利检索,专利查询,专利分析的服务。并且A digital harmonic rejecting phase detector inherently capable of rejecting substantially any even harmonic and with provisions for good rejection of at least one odd harmonic present in the input signal. The detector has a bidirectional counter system with a first half unidirectional counter and a second half unidirectional counter with transfer gating periodically transferring content of the first half counter to the second half counter. The bidirectional counter system accomplishes both an invert-noninvert function and the averaging function of a lowpass filter. The input signal is processed through a signal conditioner to a pulse density representation. A reference divider is provided developing the fundamental reference frequency fr and developing required odd harmonic reference frequencies (i.e., 3fr and 5fr) in square wave form. The detector processes the input signal with a VCO for a sine-wave input or a frequency multiplier for an FM input and includes a multiphase clock generator, at least one clock divider (one for each odd harmonic provided for), clock and counter controls, complement gating and two detection counters. Within the detector an increment of resolution is added or subtracted by either or''ing a pulse into the clock stream or by inhibiting a pulse from the clock stream in an operational approach eliminating any requirement for separate harmonic detectors. A small amount of additional gating implements the action of an odd harmonic detector along with gating already present for the fundamental detector.,下面是Digital harmonic rejecting phase detector专利的具体信息内容。
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