ES301211A1 - Transmission installation for pulse signals in a specified transmission band. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Transmitter installation for pulse signals in a specified transmission band, particularly for the transmission of pulses, whose instants are determined by a sequence of equidistant timing pulses, in which at the transmitting end the pulse signals are transmitted as a pulse modulation. a carrier oscillation through a transmission path, to the receiving end and at the receiving end the pulse signals are recovered by demodulation, said signals being controlled by a pulse former, characterized in that the transmitter comprises two channels with connected modulators to a common carrier oscillator, said modulators modulating the pulse signals of said channels on the common carrier with a relative phase shift of 90º and that at least one of the transmitting channels is provided with a suppressor network of the direct current component of the pulse signals of said channel l, while the pulse signals of the two channels thus modulated on the common carrier, together with a pilot oscillation of the carrier frequency, are transmitted through the transmission path and that the receiving device comprises two receiving channels each of the which comprises a demodulator device and a subsequent pulser, while at least the demodulator device of the receiver channel corresponding to the first transmitter channel receives a local carrier oscillation recovered from the transmitted pilot signal for the demodulation of the pulse signals transmitted with the suppressed direct current component, said pulse signals being supplied to the pulser, and that the corresponding receiver channel with the first transmitter channel includes a complementary network, whose curve, frequency characteristic, together with that of the DC suppressor network at the transmitting end, it acts at least until half the repetition frequency of pulses, as a network consisting of a subtractor device to which the incoming signals are applied directly and through a delay network, while the subsequent pulser has two different response values. (Machine-translation by Google Translate, not legally binding)