Национальный Аэрокосмический Университет Им. Н.Е.Жуковского "Харьковский Авиационный Институт"
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Synchronisation In Digital Transmission Systems
(AREA)
Abstract
A shaper of a periodic sequence of pulse packets with adjustable pulse length and fixed pause in a packet comprises two reversible binary counters, first one – countdown counter having clock input, synchronous load enable input and data loading inputs, counter mode enable input, asynchronous reset input, overflow output, an inverter, two elements OR, a circuit comprising in series connected resistor and capacitor, a start-stop device comprising synchronous D flip-flop having asynchronous reset, first and second two-input elements AND. A simplified inner structure of second reversible counter, element XOR and third two-input element AND are incorporated; the structure is simplified due to prevention from forming a circuit of synchronous parallel load.
UAU201200562U2012-01-182012-01-18Shaper of periodic sequence of pulse packets with adjustable pulse length and fixed pause
UA71778U
(en)
Shaper of periodic sequence of packets of pulses with adjustable pulse width, pulse number in packet and fixed pause between packets equal to four cycles