초록 ▼

A phase detector for detecting in real time the difference in phase between frequency pulse signals and data pulse signals, including a control signal generator for generating control signals corresponding to the occurrence of the frequency pulse signals and the occurrence or non-occurrence of the d

A phase detector for detecting in real time the difference in phase between frequency pulse signals and data pulse signals, including a control signal generator for generating control signals corresponding to the occurrence of the frequency pulse signals and the occurrence or non-occurrence of the data pulse signals, and a circuit, operative during the occurrence or non-occurrence of the data pulse signals, for producing a phase error signal indicating differences between the real time occurrence of the frequency pulse signals and the data pulse signals. Another circuit of the phase detector, if needed, responds to the control signals to correct the integral of the phase error signal.

대표청구항 ▼

Apparatus for comparing in real time first signals and second signals, comprising: (a) means for generating control signals corresponding to the occurrence of the first signals and the occurrence or non-occurrence of the second signals; and (b) means, responsive to said control signals, for producin

Apparatus for comparing in real time first signals and second signals, comprising: (a) means for generating control signals corresponding to the occurrence of the first signals and the occurrence or non-occurrence of the second signals; and (b) means, responsive to said control signals, for producing an output signal indicating differences between the real time occurrence of the first signals and second signals, said means for producing being operative during the occurrence or non-occurrence of the second signals, said means for producing being operative during the non-occurrence of the second signals while producing no change in the output signal.