G - Physics – 01 – R
Patent
G - Physics
01
R
324/38
G01R 23/14 (2006.01) G01F 1/66 (2006.01) H03K 5/26 (2006.01)
Patent
CA 1134444
METHOD AND DEVICE FOR DISCRIMINATING DIFFERENCE FREQUENCY OF TWO PULSE TRAINS Abstract of the Disclosure The proposed method for discriminating the difference frequency of two pulse trains resides in the following. The pulses of one train are separated into odd and even puls- es, while in the second train every second pulse is separa- ted. Then, every second pulse is checked for coincidence with even or odd pulses and, once such a coincidence occurs, the next check is for coincidence with, respectively, odd or even pulses, the frequency of such coincidences being representative of the difference frequency. The proposed device for discriminating the difference frequency of two pulse trains by the above method comprises a means for comparing one train with the other, which means includes a separator of even and odd pulses, whose input serves as one of the inputs of the device. The comparison means also includes two AND gates having their first inputs connected to the outputs of the separator, an OR gate having its inputs coupled to the outputs of the two AND gates, an additional AND gate whose output serves as an output of the device and whose first input is connected to the OR gate, a two-to-one pulse frequency divider whose input serves as the other input of the device and whose output is connected to the second input of the OR gate, and a flip-flop connected to the output of the additional AND gate and having its outputs connected to the second inputs of the first two AND gates, the outputs of the flip-flop serving as the other outputs of the device. - 2 -
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Smyshlyaev Vladimir V.
Zalessky Eduard A.
Smyshlyaev Vladimir V.
Swabey Ogilvy Renault
Zalessky Eduard A.
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