SU1465898A1 - Device for input of information into electronic computer - Google Patents

Abstract

This invention relates to automation and advanced technology and can be used in devices designed to enter information from a camera into a computer. The purpose of the invention is to expand the field of application by providing adjustment of the sampling step along the X axis. This makes it possible to adjust (change) the sampling step (the total number of selectable points in a row). For this purpose, a matching unit and a synchronization unit, as well as additional links, are entered into the device, ensuring that the code from the tab X coordinates is entered both in the minor and in the coordinate system. aging of the controlled frequency splitter bit. This determines the step size with which it will dry; there is a discretization of the video signal by line. 1 ill. I i (Л С

Description

one

The invention relates to automation and computing and can be used in devices designed to enter information from a camera into a computer,

The purpose of the invention is the expansion of

.power of application by providing adjustment of the sampling pitch along the X axis,

 To ensure that it is possible to adjust (change) the discretization step (the total number of selectable

points in a row), the code from the counter of the X coordinate can be entered into both the lower and higher bits of the controlled frequency divider, and the step size with which

the video signal will be sampled by string.

The drawing shows a block diagram of the proposed device.

The device contains a synchronous generator 1, a controlled divider 2 frequencies, a counter 3 coordinates X, a generator of 4 signals of an electronic viewfinder, a counter 5 coordinates of Y, a generator 6 of a strobe pulse, a control unit 7, a conjugation unit 8, a synchronization unit 9, a strobing unit 10 television sensor 11, analog-to-digital converter 12.

The device works in the following way.

05 № 00

PD

The first information input of the device receives -; start signals of the transmission cycle, a sign of receiving information and an external reset. In this case, the transmission cycle start signal initiates the control unit 7 upon receipt of a frame sync pulse from the output of the synchronous generator 1 to the clock input of the control unit 7. The signals from the output of the latter are fed to the corner input of the counter 3 coordinates, X, the controlled frequency divider 2, the synchronization unit 9, and the strobing unit .10. In this case, the controlled frequency divider 2 begins to generate pulses, the period between which is determined by the code received by. the second information input of the controlled frequency divider 2. The appearance of pulses at the output of a controlled splitter 2 frequency occurs when the code on its second information input and the number of counting clock pulses corresponding to this code are equal to one and are output from the output of the sikhrogenerator 1 to | the synchronizing input of the controlled de-. 2 frequencies. The pulses from the output of the controlled splitter 2 frequencies start the gating impulse generator 6, the impulse from the output of & gEU (there is a signal from the address code of the video signal in block 8 W, resetting the previous address code, the key in block 8 establishes the consistency of block 9 of synchronization, stresses the formatting; block strobe-Ivani in block 10 and controls the entry of code E of the controlled frequency divider 2, 4

The offset code of the first, second point of the line is inserted into the controlled frequency divider 2 by the line; | ttiM clock pulses, coming from the sync generator 1 dg 4a output, the synchronizing input of the controlled divider 2 frequency. This KOR is formatted in the controlled divider 2, the frequency of the shift of the counter code 3, delivered to the information input of the controlled case and 2 frequencies,

In the absence of a shift, the offset-code occurs at one point of the Code address in the line each time it is entered, relative to the address of the point (Sheis in the previous frame), and each time it shifts towards the highest points, one bit

1465898

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doubled, i.e. discretization step change occurs

As soon as the device reaches the last frame, during which information about the last point of the transmitted part of the video signal, i.e. when the counter 3 counts the number of frames required to transmit all the information, the output of the block 7 forms: the signal of the indication of the end of the transmission cycle, i.e. video conversion cycle ends.

The device is synchronized with frame and line synchronization pulses, as well as sync series, phased horizontal pulses, which arrive at the information input of counter 5, coordinate Y and counter 3, coordinate X, and synchronize inputs of the television sensor 11, generators of 4 signals of the electronic reticle, controlled divider 2 frequency.

The reset of the counter 3 of the coordinates X is effected by a pulse from the output of the control unit 7, and the reset of the counter 5 of the coordinate Y is effected by the pulses from the output of the generator 4 of the electronic reticle signals. The signals of the frame sync and horizontal sync pulses go to the input of the television sensor And, the output circuit of the television sensor is connected to the information input of the analog-digital converter 12, and the installation signal to the initial state comes from the output of the electronic viewfinder signal generator.

The device can receive a video signal from a camera (for example, the Vzor type), made on the basis of a Vidicon type transmission tube, quantize this signal by two levels, corresponding to black and white levels, and transmit the received discrete signal to the Intermediate storage computer. the device is not required as the device coordinates the video signal sampling rate and the speed at which the EB is able to receive information. A slowdown in the transmission of information in a computer occurs due to the fact that the information on the full frame is transmitted not during the time taken by the beam of the vidicon of one frame, but over several frames.

The discretization is carried out with a certain step, which can be changed, if necessary, by applying a code to the input of a controlled frequency divider.

The display of video information in the memory of a computer occurs. By passing the addresses of POINTS on the screen of a vidicon corresponding to the level of black or white. The frame and line synchronization signals of a television sensor are synced with sync generator 1 and are common to both the device and the television sensor.

Claims (1)

Invention Formula one An interface unit and a synchronization unit are input, the output of which is connected to the synchronization input of the interface unit and the synchronization input of the gating unit; the information input of the gating unit is the first information input of the device and is connected to the second information input of the synchronization unit and the fourth information input the control unit and the interface unit, the output of which is the output of the device, the output of the synchronous generator is connected 15 to the synchronous input of the controlled frequency divider, rmatsionny input of which is combined with a data input Y coordinate counter control input is combined with the control input X coordinate counter strobe input merged with the input strobe .- synchronization unit and a strobe input of the conjugated; -. audio, informatsipnny input merged ° 20 A device for entering information into a computer, V containing a clock generator ,. X coordinate meter, electronic viewfinder signal generator, control unit, controlled frequency divider, strobe pulse generator, 25 with information input of control unit, inverter, lock, and second information input. Gating unit and: television is the second information input the device, the output of the counter of the X coordinate is connected to the information input of the 30 control unit of the control unit, the output of the counter coordinates Y is connected to the information inputs of the interface block and the electronic viewfinder signal generator whose output is connected to the information 2g of the interface block and analog-digital the converter connected by the output to the information input of the gating unit, the output of the television sensor is connected to 40 the second information input, the digital-to-digital converter, and the output of the gating unit is connected o strodchik, the sync generator output is connected to the synchronization input of the television sensor, the synchronizing input of the electronic viewfinder signal generator, the information inputs of the X coordinate counter and the Y coordinate counter and the synchronizing input of the control unit, the output of the electronic viewfinder signal generator to the coordinate counter input Y, the output of the control unit is connected to the control unit. the input of the X coordinate, the output of the controlled frequency divider is connected to the control inputs of the control unit and the strobe pulse generator, the output of which is connected to the information input of the gating unit, characterized in that in order to expand the application area by providing step adjustment sampling on the x-axis, into it A matching input, a control unit, the control input of which is connected to the control input of the synchronization unit 45 and connected to the output of the control, the synchronization input of the gate generator is connected to the output of the synchronizing generator. 1465898 an interface unit and a synchronization unit are introduced, the output of which is connected to the synchronization input of the interface unit and the synchronization input of the gating unit, the information input of the gating unit is the first information input of the device and is connected to the second information unit of the synchronization unit and the fourth information input the input of the control unit and the interface unit, the output of which is the output of the device, the output of the clock generator is connected 5 to the synchronous input of the controlled frequency divider, info The input input of which is combined with the information input of the Y coordinate counter, the control input is combined with the control input of the X coordinate counter, the gate input is combined with the gate input of the synchronization unit and the gate input of the interface unit; 0 5 with the information input of the control unit, and the second information input is the second information input the device, the output of the counter of the X coordinate is connected to the information input of the control unit of the control unit, the output of the counter coordinates Y is connected to the information inputs of the interface block and the generator of the signal of the electronic sighting device whose output is connected to the information input of the interface block and the analog-digital converter, connected by the output to the information input of the gating unit, the output of the television sensor is connected to the second information input, a digital-to-digital converter, and the output of the gating unit is connected to iruyuschim input unit .sopr voltage controlled yu.schy input of which is integrated a control input of the block synchronization and SUP1 slyuchen to the output unit, a control, input sinhronizatsni generaora podklyuen strobe pulses to the output sinhrogeneragora. 38M