SU732940A1 - Device for data display on the screen of cathode ray tube (crt) - Google Patents

Description

The invention relates to computing technology and can be used to provide information about rotation parameters in adequate forms. A device for rotating an image of a symbol on a screen of an electron beam tube (CRT) is known, containing a symbol memory connected to a symbol code and interrogator, control trigger increment adders, pulse counter, register rotation angle code, symbol code register connected to the symbol code decoder, and to the illumination unit, gate connected to the impu generator with a control trigger and a pulse counter connected to the interrogator. Such devices can change the angle of the symbol on the CRT 1 screen. However, the devices are quite complex and do not convey information about the rotation parameters relative to the center of the symbol in an adequate form. A device for displaying information, comprising a sinusoidal voltage generator connected to a phase-shifting circuit, two coordinate amplifiers X and Y, two control inputs 2 Device ({controls the size of the sides of the control signals applied to Two control inputs. However, such a device does not provide information on the rotation of the object. The aim of the invention is to increase and shape the device with adequate display of the rotation parameters. Information containing a generator of sinusoidal oscillations, the output of which is connected to the input of the phase-shifting unit, amplifiers whose outputs are connected to the corresponding electrodes of the deflecting system of the CRT, a control generator, two switches, two integrating blocks, two cyKfMaTopa, whose inputs are connected to the outputs generators through serially connected integrated blocks and communders, and the outputs of the cymators are connected to the inputs of the amplifiers, we pull the output of the phase-shifting unit to the second input at the first switch, and the output of the generator of sinusoidal oscillations is connected to the second input of the second switch.

The drawing shows a structural electrical circuit of the proposed device.

A device for displaying information on a CRT screen contains a generator of sinusoidal oscillations, a phase-shifting unit 2, a controlled oscillator 3, switches 4 and 5 ,. integrating blocks b and 7, adders 8 and 9, amplifiers 10 and 11, inputs 12 and 13 of control in X and V, input 14 of control of rotation.

The device works as follows.

A sinusoidal voltage from the output of the generator 1 is fed to the switch 5 and the phase-shifting unit 2, where the phase shift is 9O. Further, the voltage from the phase-shifting unit 2 is fed to the second switch 4. When the switches 5 and 4 pulses arrive at the control input, 4 pulses from the output of the controlled pulse generator 3 form pulses at their outputs; which arrive at the integrating units 6 and 7, where the steepness of their fronts decreases and then through summers 8 and 9 to the corresponding coordinate amplifiers 10 and 11. At the same time, a sign is formed on the screen of the oscilloscope, yoke which depends on the ratio of the frequency generator 1 and 3 controlled oscillator pulses.

When the frequencies of generator 1 and generator 3 are equal, 1: 1, 1: 2, 1: 3, ..., the following forms of signs are formed: I / A 4, etc. When the control signal is applied to the input of the controlled pulse generator, the pulse frequency changes within small limits and the signs begin to rotate at a speed proportional to the value of the input signal.

The direction of rotation will depend on the direction in which the frequency of the ngchulses has changed (more. Or less

generator 1), i.e. from the sign of the control signal.

The proposed device improves the information content of the shchikator and provides an adequate display of the rotation parameters. It forms several kinds of signs.

A device for displaying information can be used in control systems to present information simultaneously on several motion parameters along two coordinates in a plane, as well as rotation parameters expressed in an adequate form using a common indicator element.

The device can be used in psychophysiological studies of the ability of a person to perceive several parameters of movement, movement and rotation, presented simultaneously.

The device was made in a single instance and used as a prototype in a practical experiment in the laboratory of the physiology of movements.

Claims (1)

Invention Formula A device for displaying information on a CRT screen containing a sinusoidal oscillator, the input of which is connected to the input of a phase-shifting unit, an amplifier; a generator, two switches, two integrated blocks, two cyiviMaTopa, whose inputs are connected respectively to the outputs of the generators via serially connected integrating blocks and switches, and the outputs of the adders are connected to the amplifier, and the output of the phase-shifting unit is connected to the second input of the first switch, and the output of the generator of sinusoidal oscillations is connected to the second input of the second switch. Sources of information taken into account in the examination 1, USSR Author's Certificate N9 453719, cl. p 06 K 15/20, 1973 2 USSR author's certificate NO 463997, cl. Q About K 15 / 2O, 1973 (prototype).