SU653768A1 - Device for monitoring and stabilizing scanning tube screen dimensions and position - Google Patents

Description

The invention relates to a measurement technique, in particular, to devices for monitoring and automatically adjusting the spatial position of rasters of transmission television tubes.

A device for monitoring and stabilizing the size and position of a raster of a transmitting television tube is known, which contains a test table placed in front of the optical input of a transmitting television camera, a synchronous generator, a video monitoring unit, a distribution unit for informational video pulses, a reference signal unit, a raster orientation unit, a control unit and stabilization of frame alignment , block of control and stabilization of horizontal alignment, block of control and stabilization of horizontal raster size, block of control and stabilization of vertical the size of the raster, the output of the transmitting television ccg measure is connected to the input of the video monitoring unit and the first input of the distribution unit of information video pulses, the corresponding outputs of which are connected to the first inputs of the raster orientation unit, control unit and stabilization frame alignment, control unit and stabilization of the horizontal size of the raster, control unit and stabilization of the vertical size of the raster, and the second inputs of these blocks are connected to The existing outputs of the reference signal block, the raster orientation block, the frame alignment control and stabilization block, the line alignment control and stabilization block are connected to the corresponding inputs of the transmitting television camera, and the second input of the video pulse distribution block is connected to the first output of the clock generator, the second and third outputs of which connected respectively to the input of the transmitting television camera and the input unit of the reference signals 1.

In such a device, the raster orientation is not controlled and is not adjusted.

The purpose of the invention is to increase the accuracy of the stabilization of the position of the raster.

Claims (2)

To do this, a device for monitoring and stabilizing the size and position of the transmitting television tube raster contains a test table placed in front of the optical input of the transmitting television camera, a synchronous generator, a video control unit, a distribution unit for informational video pulses, a reference signal unit, a raster orientation unit, and a control and stabilization unit personnel alignment, control unit and stabilization of line centering, control unit and stabilization of horizontal raster size, control unit and stabilization of the vertical the size of the raster, the output of the transmitting television camera is connected to the input of the video monitoring unit and to the first input of the distribution unit of information video pulses, the corresponding outputs of which are connected to the first inputs of the raster orientation unit, the control unit and the centering stabilization unit, the control unit and the centering stabilization unit, the control unit stabilization of the horizontal size of the raster, control unit and stabilization of the vertical size of the raster, and the second inputs of these blocks are connected with The existing outputs of the reference signal block, the raster orientation block, the frame alignment control and stabilization block, the line alignment control and stabilization block are connected to the corresponding inputs of the transmitting television camera, and the second input of the video pulse distribution block is connected to the first output of the clock generator, the second and third outputs of which connected respectively to the input of the transmitting television camera and the input of the unit of reference signals, the control and stabilization unit of the vertex is introduced raster skew raster, control unit and stabilization of vertical nonlinearity, control unit and stabilization of horizontal skew raster, control unit and stabilization of horizontal nonlinearity, adder staff alignment and adder line combining, and the corresponding outputs of the distribution unit information video pulses connected to the first inputs of the control unit and stabilize the vertical skew of the raster, block of control and stabilization of vertical nonlinearity, block of control and stabilization of horizons tal skew of the raster, the control unit and the stabilization of horizontal nonlinearity, the second inputs of which are connected to the corresponding outputs of the reference signal block, and the outputs of the control unit and the stabilization of the horizontal raster size, the control unit and stabilization of the horizontal nonlinearity, the first output of the control unit and the stabilization of the horizontal raster skew and the second the output of the control unit and stabilization of the vertical skew of the raster is connected to the corresponding inputs of the row combining adder, the second output The unit for controlling and stabilizing the horizontal skew of the raster, the first output of the unit for controlling and stabilizing the vertical skewing of the raster, the output of the unit for controlling and stabilizing the vertical size of the raster and the output of the unit for controlling and stabilizing the vertical nonlinearity are connected to the corresponding inputs of the frame combiner, and the outputs of the frame and horizontal adders the registrations are connected to the corresponding inputs of the transmitting television camera. In the proposed device, the accuracy of raster position stabilization is increased. FIG. Figure 1 shows the structural electrical circuit of the device for monitoring and stabilizing the size and position of the transmitting television tube raster; in fig. 2 - a test table of the device for monitoring and stabilizing the size of the position of the transmitting television tube raster. The device for monitoring and stabilizing the size and position of the raster of the transmitting Television tube contains test table 1 placed in front of the optical input of the transmitting television camera 2, clock generator 3, video monitoring unit 4, block 5 of distributing informational video pulses, unit 6 of reference signals, unit 7 of raster orientation, block 8 control and stabilization of personnel alignment, block 9 control and stabilization of horizontal alignment, block 10 control and stabilization of horizontal raster size, block 11 control and stabilization of vertical the size of the raster, the output of the transmitting television camera 2 is connected to the input of the video monitor unit 4 and the first input of the video information distribution unit 5, the corresponding outputs of which are connected to the first inputs of the raster orientation block 7, the center alignment and stabilization unit 8, the control and stabilization unit 9 line centering, block 10 of the control and stabilization of the horizontal size of the raster, block 11 of the control and stabilization of the vertical size of the raster, and the second inputs of these blocks are connected with corresponding outputs of block 6 of reference signals, outputs of block 7 of raster orientation, block 8 of control and stabilization of personnel alignment, block 9 of control and stabilization of horizontal alignment are connected to corresponding inputs of transmitting television camera 2, and the second input of block 5 of distribution of video information pulses the output of the synchronizing generator 3, the second and third outputs of which are connected respectively with the input of the transmitting television camera 2 and the input of the block 6 of the reference signals, introduced block 12 of the control and stabilizing the vertical skew of the raster, block 13 for controlling and stabilizing the vertical nonlinearity, block 14 for controlling and stabilizing the horizontal skew of the raster, block 15 for controlling and stabilizing the horizontal nonlinearity, adder 16 for frame alignment and adder 17 for horizontal alignment, with the corresponding outputs of block 5 for distributing video information pulses with the first inputs of the block 12 of the control and stabilization of the vertical skew of the raster, the block 13 of the control and stabilization of the vertical nonlinearity, block 14 control and stabilization of horizontal skew of the raster, block 15 of the control and stabilization of horizontal nonlinearity, the second inputs of which are connected to the corresponding outputs of the block 6 of the reference signals, and outputs of the block 10 of control and stabilization of the horizontal raster size, block 15 of the control and stabilization of horizontal nonlinearity, first output block 14 of the control and stabilization of horizontal skew of the raster and the second output of block 12 of the control and stabilization of the vertical skew of the raster are connected to the corresponding inputs and adder 17 horizontal alignment, the second output of the control unit 14 and the horizontal stabilization of the raster, the first output of the control and stabilization unit 12 of the vertical misalignment of the raster, the output of the control and stabilization unit 11 of the vertical raster size and the output of the vertical non-linearity control and control unit 13 are connected to the corresponding inputs adder 16 personnel alignment, while the outputs of adders 16 and 17 personnel and line combining are connected to the corresponding inputs of the transmitting television camera 2. Te table 1 (see FIG. 2) contains contrasting rectangles 18 on the vertical edges of the raster, contrasting triangles 19 in the corners of the raster, contrastingly reduced rectangles 20 on the horizontal edges of the raster, horizontal sides of the rectangles 21 on the vertical edges of the raster. The device control and stabilization of the size and position of the raster of the television tube works as follows. The test table 1 is located on the raster L X Н so that the transmitted image is of size j X h. Test table 1 is exposed and oriented so that on the first and last lines of the raster there are video pulses from contrasting colored triangles 19 of tis duration and midpoints of contrasting colored rectangles 20 of t2o tig duration, and at the edges of certain middle rows there should be video pulses of contrastingly colored 18 rectangles with a duration of tig. During the operation of the transmitting television camera 2, the synchro-generator 3 generates horizontal and frame synchronizing pulses to the transmitting television camera 2, the distribution unit 5 and the block 6 of reference signals. From the transmitting television camera 2, the video information enters the video monitoring unit 4. The distribution unit 5, controlled by the synchronous generator 3, distributes the video pulses from test table 1 as follows: the video pulses tjg to the control unit 9 and the control unit 10; tig video pulses in control unit 8, control unit 11, control unit 14, control unit 12 and raster orientation unit 7; tio video pulses in control unit 15; tji video pulses in block 13 control. The results of monitoring video pulses in blocks 7-9 of the control are converted into signals for adjusting (stabilizing) the horizontal and personnel alignment and rotation (orientation) of the raster and are fed to the transmitting television camera 2. The results of monitoring video pulses in blocks 10, 12, 14 and 15 of the control are converted into signals adjustments are summed up in the adder 17 of the line alignment and fed into the transmitting television camera. 2. The results of the control of the video pulses in the control blocks 11, 12, 13 and 14 are converted into the corresponding adjustment signals, summed up in the adder 16 and combined into the transmitting television camera. In the proposed device for monitoring and stabilizing the size and position of a raster of a transmitting television tube, the degree of stabilization in space of the entire set of raster points is increased. Formula for monitoring and stabilizing the sizes and positions of a raster of a transmitting television tube containing a test table placed in front of the optical input of the transmitting television camera, a synchro-generator , video monitoring unit, informational video pulses distribution unit, reference signal unit, growth orientation unit ra, personnel control and stabilization unit, horizontal centering control and stabilization unit, horizontal raster size control and stabilization unit, vertical raster size control and stabilization unit, the output of the transmitting television camera is connected to the input of the video monitoring unit and the first input video pulses, the corresponding outputs of which are connected to the first inputs of the raster orientation block, the control and stabilization block of personnel alignment, the control block and the station bilization of horizontal alignment, control unit and stabilization of horizontal raster size, control unit and stabilization of vertical raster size, and the second inputs of these blocks are connected to the corresponding outputs of the reference signal block, output of the raster orientation block, control unit and stabilization of personnel alignment, control unit and stabilization of horizontal centerings are connected to the corresponding inputs of the transmitting television camera, and the second input of the video information distribution unit of the pulses is connected to the first output m of the synchronizing generator, the second and third outputs of which are connected respectively to the input of the transmitting television camera and the input of the unit of reference signals, characterized in that, in order to improve the accuracy of stabilization of the raster position, the control unit and the stabilization of the vertical skew of the raster, the control unit and stabilization of the vertical nonlinearity are introduced, the raster horizontal skew control and stabilization unit, the horizontal nonlinearity control and stabilization unit, personnel offset and adder Moreover, the corresponding outputs of the distribution unit of information video pulses are connected to the first inputs of the control unit and stabilization of the vertical skew of the raster, the control unit and stabilization of the vertical nonlinearity, the control unit and stabilization of the horizontal skew of the raster, the control unit and stabilization of the horizontal nonlinearity, the second inputs of which are connected to the corresponding outputs the block of reference signals, and the outputs of the control unit and the stabilization of the horizontal raster size, the control unit and horizontal nonlinearity stabilization, the first output of the control unit and stabilization of horizontal skew of the raster and the second output of the control unit and stabilization of the vertical raster skew are connected to the corresponding inputs of the horizontal combination adder, the second output of the control unit and horizontal ramp stabilization, the first output of the control unit and stabilization of the vertical skew raster, output of the control unit and stabilization of the vertical size of the raster and output of the control unit and stabilization of the vertical n linearity are connected to respective inputs of adder human alignment, the outputs of adders human and horizontal alignment are connected to respective inputs of a television camera. Sources of information taken into account during the examination 1. Turchenkov L.P. Technique of Cinema and Television, 1973, No. 3, p. 41 ;