SU391753A1 - THE DEVICE OF SYNCHRONIZATION OF THE SIGN-GENERATOR ON THE ELECTRON-BEAM PIPE - Google Patents

Description

one

This invention relates to a real-time mapping technique.

Synchronization devices of the character generator 1 on the electron beam (E. / 1T) are known, containing a generator, a horizontal pulse counter with a peer generator, from which output the signal is fed to a horizontal voltage amplifier, pulse counter with additional ,; an inverter, from the output of which the signal is fed to a voltage amplifier of personnel pulses, as well as a block of inverters and an input (register, to the input of which ziakav codes are fed, and the output is connected to the decoder.

The purpose of the invention is to simplify the control circuits of a CRT beam modulator, as well as to reduce the influence of spurious emissions on the sweep signals during a CRT beam return path. For this, a single state deifuer and a standby multivibrator are connected in series between the horizontal pulse counter and the inverter, as well as between the frame impulse counter and the additional inverter, and the outputs of the controlled oscillator and single state decoders are connected to the circuit match, the output of which is simultaneously connected to the "decoder" input register.

The drawing shows a block diagram. Offer from the device.

Ust1roy (Stev works as follows.

The input of the lowercase number 1 counting signal is received from the controlled generator 2. The outputs of all the trigger triggers of the counter ip are connected to the decoder of the unit state 3, the output of which produces an impulse with a follow-up period equal to the horizontal scanning period and the duration equal to the duration of the sweep of one character, B1 key spacing between characters. These pulses arrive at the start of the standby multivibrator 4, the duration of the output pulse of which determines the return time on the line, as well as on the start of the frame impulses counter 5 and through the inverter unit 6 to the cave circuit 7 to eliminate the sweep of the characters during the line return . From the coincidence circuit, a pulse is simultaneously applied to the input register 8 and the decoder 9 connected to each other.

A1 in a manner similar to that occurs in the signal that controls the sweep of the characters in the "ADR."

The synchronization device also includes an inverter 10 and an additional decoder of a single state //. Standby multi-selector 12, inverter 13, which control the spreading of characters across the frame.

Subject invention

Device) in synchronization of the character generator on the electron tube to your tube, which contains a controlled generator, a counter of pulses with an inverter, from the output of which a signal is fed to a voltage amplifier of horizontal pulses, counters; to frame HR pulses with longitudinal and inverter signals the output of which the sitnal is fed to the amplifier of the personnel pulses, as well as the blover and the input register, to the input of which the character codes are given, and the output connected to the decoder, characterized in that, in order to wake up the control circuits of the module rum of the cathode ray tube and the weakening of the INFLUENCE on separate ina emissions of the sweep signals during reversal beam paths of the electrofusion tube, between the line pulse counter and the inverter, as well as between the frame personnel pulses and the additional inverter; the controlled generator and single state decoders are connected to the coincidence circuit through the inverter unit, the output of which is simultaneously connected of the connections to the input register and decoder.