SU777880A1 - Device for converting multi-communication television images into single-communication ones - Google Patents

Description

the intersection of the object (shown in Fig. 2 by a thickened line), which appears at the same time at the output of the element OR 3 (at the output of the device) and is simultaneously fed to the input of the delay unit at line 4 and at the first input of element AND 5. Since At this time, the output of the delay unit on line 4 and, consequently, the output of element 5 of the signal is absent, the pulse at the output of the device (dashed lines in Fig. 2) ends with the end of the first crossing pulse at time U, repeating the original signal.

On the next line, at the time point (3) from the output of the television signal sensor 1, the first input of the element OR 3 enters the first of the intersection pulses, which form an image of the object on this line. At the same time, a pulse appears at the output of the device, which simultaneously feeds the input of the delay block to row 4 and to the first input of element 5. The intersection of the preceding row, delayed by the delay block by row 4 for the horizontal scan period, arrives at time on. the second input of the element AND 5, the closure of the positive feedback circuit from the output of the device through the element AND 5 to the second input of the element OR 3, so that at time 4 when the first of the object intersection pulses on this line ends, the pulse at the output of the device continues act. The appearance at the first input of the element OR 3 at the time t of the second of the intersection pulses does not change the state of the device.

At time ti, when the delayed intersection pulse of the preceding line ends at the second input of element 5 and the feedback circuit opens, the pulse at the output of the device continues due to the presence of a second intersection pulse of the object on this line at the first input of element 3, c the end of which at time U terminates the output signal. Thus, at the output of the device, a pulse is formed, the beginning of which coincides with the beginning of the first, and the ending - with the end of the last (in this case, the second) of the object intersection pulses on a given line, having a partial or complete time overlap with the intersection pulse of the previous line.

The signal generated at the output of the device is delayed by a delay block per line 4 and acts in a similar way, eliminating the interval between the crossing pulses on the subsequent (third) line and so on until the end of the object. As a result, a signal is formed at the output of the device (shown by dotted lines in Fig. 2), forming a single link (without the "hole inside) image of this object.

The introduction of the element And and the change in the connections makes it possible to exclude from the composition of the known device 1 a trigger, which is a source of errors, due to which the accuracy of the transformation of television images increases 4-5 times.

The use of the proposed device in the apparatus for the quantitative analysis of objects will improve the accuracy of counting and measuring the geometric parameters of objects.

Claims (1)

Invention Formula A device for converting multiple television images into one-way ones, containing a television signal sensor connected in series, a video signal amplitude amplitude unit and an OR element, a line delay unit, characterized in that, in order to improve the accuracy of the conversion, an And element is entered, the first input of which connected to the output of the OR element, the second input is connected to the output of the delay block per line, and the output of the AND element is connected to another input of the OR element, while the output of the OR element is connected to the input of the back block holders. The source of information taken into account in the examination 1. UK patent number 1264807, cl. N ЗТТ, publ. 1972