SU734759A1 - Information display - Google Patents

Description

I

The invention relates to computing and can be used for the exchange of alphanumeric and graphic information of a person with a digital computer or other of its storage.

A device for displaying information is known comprising a graphic information input unit, a text information input unit, a interface unit, a block, a buffer memory, and a synchronization unit.

W.

The drawback of the device is the low resolution of the graphic field with the capacity of the buffer memory device and the size of the television screen, calculated on the display of one page of text information.

Closest to the proposed technical entity is a device for displaying information, containing a block for entering graphic information, a block for entering text information, the output of which is connected to the first input of a text editing block and

the first input of the interface unit, the second input of which is the device input, the buffer memory block, the first input of which is connected to the first output of the text editing unit, the second 5 input - with the output of the interface block and

the first output of the device, the third input with the first output of the synchronization unit and the second output of the device, and the output with the first inputs of the first and second switches, the outputs of which are connected to the first and second inputs of the video signal maker, respectively, the third input of the video signal maker is connected to the second output of the text editing unit, and the output is to the first input of the display unit, the second input of which is connected to the second output of the synchronization unit and the third output of the device, the third output of the synchronization unit is connected To the second input of the text editing unit and the fourth output of the device, and the fourth output to the second input of the first switch, the input of the character generator and the fifth output of the device, the output of the character generator is the sixth output of the device and connected to the second input of the second switch 2 for two-way exchange of user information with the digital computer or other information carrier in the forms: alphanumeric, stylized graphics, scatter graphics. In addition, the device provides reception and display of the television image, and also allows displaying information on the screen both in graphic and alphanumeric form with stylized and in the form of dotted graphics with the number of points, where q, the number of character code bits ( 7 or 8); G is the number of exposure columns on a CRT screen; F - the number of text lines on the working area of a CRT. Representation of a half-point graphic from such a relatively small number of points on the entire screen leads to uneven enlargement of the equivalent point on the CRT screen and, consequently, to lowering the resolution of the working field of the graphic. In order to properly display information in the form of dotted graphics, it is necessary to digitize elements of the order O, 5 mm (resolution, 2 lines / mm), while in the described device the size of the point element in the vertical is four television lines with There are 320 TV lines in the frame. This number is calculated on the basis of k zgo. N is the number of lines in the frame during a progressive scan; C is the number of text lines. The reason for the low resolution of the working field of dotted graphics with the RAM capacity and the screen size calculated for displaying one page of textual information is the mismatch of the RAM memory with the size of the screen on the television tube when displaying in the dot graphic mode (the required RAM memory for 100 000 - 60 poooo bit bits, with BZU capacity for displaying text information 5 koooo-ooob binary bits. The purpose of the invention is to increase the resolution of the device. The goal is achieved in that the device contains a block for editing points, the first, second and third inputs of which are connected to the output of the graphic information input unit, the first output of the text editing block and the fourth output of the synchronization block, respectively, the first output of the point editing block is connected to the third input of the block text extraction, and the second output - to the fourth input of the buffer memory block, as well as the fact that the point editing block contains a reverse shift register, the input of which is with the first input of the block, the first comparison node, the first input of which is connected to the third input of the block, the second input - with the output of the reverse shift register and the second output of the block ;, and the output with the first output of the block, the reversible counter, the first input of which is connected to the first input block, the second input - with the second input of the block, and the first output - with the first output of the block, the second Comparison node, the first input of which is connected to the third input of the block, and the second input - to the second output of the reversible counter and two elements AND of the first group, the first inputs which The second inputs are connected to the second input of the comparison node and the reverse shift register, respectively, the output of the first element And of the first group is connected to the first output of the block, and the output of the second element And is connected to the second output of the block. FIG. 1 shows a block diagram of the device; FIG. 2 is a structural diagram of a block for editing points; FIG. 3 is a functional diagram of the device; FIG. 4 shows a bitmap field; in fig. 5 - change the input signals of block 2 when editing a point. The device comprises an interface unit 1, a buffer memory unit 2, a synchronization unit 3, a generator. 4 characters, display unit 5, first switch 6, second switch 7, video signal generator 8, text information input unit 9, text editing unit 10, graphic information input unit 11, point editing unit 12, reverse shift register 13 ,. first comparison node 14, reversible counter 15, second comparison node 16, text column counter 17, counter 18

text lines, third comparison node 1U, control node 20, first AND group of 21 elements, AND 22 element, And 23 second element group, And 24 first element, And 25 second element, And 26 third element group, and And fourth group of 27 elements.

The device works as follows.

There are two modes of operation: for the Nth panel, input / output of text information and input / output of point graphics. In the input-output mode of text information, point editing block 12 is disabled. At the request of the operator, the in / formations from the accumulator, through the block 1 of the conjugation, block 2 of the buffer memory is recorded. After the rewriting of information is completed, unit 2 is disconnected from the interface unit 1 and begins to work in the regeneration mode of information on the screen of the display unit 5 with a frequency of 50 Hz. The clocking frequency of the i.- block 2 is set by the synchronization block 3, which also generates the horizontal and vertical sync pulses for the display unit 5, 4-character generator character reading signals, and text address sweep signals of text lines and columns. At the output of the 4-character generator, signals are developed for the character sweep, simultaneously for all characters used in this mode of alphabets. The sample of the sign sweep signal corresponding to the sign code arriving at a given time from the code of unit 2 is performed using the first switch 6, the output of which is the sign sweep signal. This signal is then fed through the video driver 8 to the first input of the display unit 5 (video channel).

In the mode of manual input of textual information into the operation of the device, the text editing block 1O is included. With its help, the signal of coincidence of the code of the current address sweep of the text field with the code of the specified address, at which the character is being edited (written), is generated. The address code match signal from the output of the text editing unit 10 is input to the video signalformer 8 to highlight the edit mark located under the sign of the specified address and to the first input of the block 2 to change the character code stored at the specified address in block 2. Offset

The marks on the display unit screen occur when the text column counter and the text lines 18 row counter of the text editing unit 10 change (see Fig. 3). In turn, the state of the counters 17 and 18 is determined by the operator using the keyboard control buttons of the text information input unit 9 associated with the counters via the control unit 20. Here it is necessary to emphasize that when editing a character by an edit mark signal, simultaneous overwriting of the contents of the memory at a given address is performed in all digits of the character code (as a rule, the block 2 of the buffer memory performs 7 and 8 bits).

In the input-output mode of the point graphics of the 14th console, the outputs of the K-th block 2 are connected to the N-ro input of the driver of 8 video signals through the 14th first switch 6. At the same time, the output

The N-ro of the second switch 7 is disconnected from the input of the imaging unit 8 video signals. The third input of the K-th block 2 from the first output of the synchronization block 3 through the corresponding element And of the first group 21 is fed to the clock frequency of the sweep of the point-like graphics (see Fig. 3). If, in the text information output mode, in block 2, in addition to the frame regeneration, there is an additional regeneration of the information currently being developed in the text line, in the dot graphic mode this operation is excluded, since different information is displayed on each subsequent TV line. If in alphanumeric mode, 14 television lines are allocated to display the contents of the memory capacity corresponding to one text line, then in the dot graphic mode, one television line is allocated to display the contents of the same memory capacity. The dotted field is shown in FIG. four

 X-Vc, .c and h-dHs

where d is q, (a -7; e 14)

C, - to {the number of bits of BZU used for storing information but scatter graph,) .. f - capacity of BZU;

y.vj is the size (in characters) of the text field;

X-Xp is the calculated size (in characters) of the plots. This field, like the text field, is divided into signs of that ke format, but their number horizontally and vertically is determined by the capacity of unit 2 and the desired aspect ratio of sex. At the same time, the resolution of the dotted graphics is not impaired compared with the resolution of drawing lines in the text field position, which is determined by the number of columns and rows of the full character position and its size on the screen of the display unit 5. In this example, the size of the full sign is 7x14 elements. With the size of the text of the floor 32x20. Signs and semi-digits, with the bottom of the code, the characters of the block 2 capacity are 4480 bits (640x7). One full digit contains 98 (7x14) points, which corresponds to 98 memory bits (BZU-2). From here, there is the size of the field of dotted graphics in gnakopozits. 45 + 7O points The 70-point balance, equivalent to 10 shear cycles of block 2, can be displayed on the screen, or it can be redeemed and not used for the working field of the scatter graphic, but it should be taken into account to complete a full frame-by-frame regeneration cycle. N-th block 2 horizontally is carried out using the N-th first switch 6, due to supplying control inputs of this switch (to the second inputs of the corresponding elements AND of the second group 23 (see Fig. 3) of the scan signal of the position generated by the synchronization unit 3. The first discharge of the output of block 2 corresponds to the signal of the first column of the sign, and the discharge of block 2 is the signal of the 7th column of the position. The value of the clock frequency of the block 2 in the dotted graphics mode remains unchanged (does not increase) compared to the frequency in the text information mode, since the sweep time of the outputs (bits) of block 2 in the dot graphic mode is equal to the scan time of the horizontal position (on the TV line) in the text output mode. Unit 2 is made on the shift registers The output of the shift register of each seven bits of block 2 is closed on its input through the corresponding AND element of the third group 26 (Fig. 3 shows the And element only for the first section of block 2). The second inputs of elements AND of the third group 26 are supplied with control signals formed by an algorithm that provides all modes of operation of block 2. At the same time, elements AND of the fourth group 27 of each of the seven bits of block 2 are turned off by another control signal (not shown). , because through these elements only editing modes (input) are carried out. A feature of this device in the mode of displaying information from block 2 to the display block screen is alternately reading signals (one bit each) from all seven bits of block 2 during one clock cycle of the registers of block 2 (clock frequency of block 2 -j-). The device can operate both from the generator of the synchronization unit 3, and during synchronization from the clock signals of kahfovaya and horizontal scanning of any of the display units 5 (the connection is shown by the dotted line). The resolution of the dot graphic display field with the capacity of the buffer memory block and the dimensions of the television screen calculated to display one page of textual information in the device has increased to the maximum possible value. The vertical size of the point corresponds to the width of one TV line. The mode of manual input of point graphics is illustrated in FIG. five; m - V.. y, p V к k where Xi, j is the column number of the text field; Y is the number of the text line; - line number of the character position (those of the levizion line); R. - the output of the shift register 13, corresponding to the second column of the position; - clock frequency BZU-2; IP 7 p - input signals BZU-2. Each point on the screen corresponds to one cell storing one bit of information in block 2 of the buffer memory. To depict this point or erase it, it is necessary to write a logical unit or a logical zero in the corresponding memory cell of block 2. During the time of one. frames (in the direct course of a CRT beam) only one cell is recorded

The memory of block 2, like in the text information mode, takes only one address at a single frame when a light mark signal appears. The difference in the point editing process is only in increasing the selectivity of the control of the address of the light mark to the sign point. This is provided by a reversible shift register 13, a reversible counter 15 and the first and second nodes 14 and 16 of the comparison (see Fig. 3) of the point editing unit 12. The outputs of all comparison nodes (14, 16, 19) are combined according to the AND scheme (elements 21, 24), and the resulting signal is fed through block 8 to block 5 for highlighting the editable point (the backlight can be highlighted with increased brightness or flickering). To overwrite the contents of the memory cell of the block 2 corresponding to the currently edited point, the inputs of block 2 through the element 25 and the corresponding element of the fourth group 27 provide signals from the outputs

the third comparison node 19 (the label of the address of the position), the second comparison node 16, the number of the television line (the label of the line of the position) and through the AND element of the fourth group 27 from the outputs of the reverse shift register 13. Moreover, the outputs of the nodes 16 and 19 of the comparison are connected via the second element I 25, the output (Mp) of which, in turn, can control all seven outputs of the reversing shift register 13 through the elements of the fourth group 27. The outputs of the shift register 13 must be connected to the inputs of block 2 in the order of corresponding to the discharge of the sign code to the selected table, a complete sign position (the first discharge of block 2 corresponds to the first column of the position, and the seventh discharge to the seventh column).

The signals at the output of the reverse shift register 13 P1 - P7 are static, i.e. do not change during the frame time, the signal at the output of the second comparison node 16 also does not change during the entire selected TV line, as a result the frequency of the control signals when editing a point in the position is not increases compared to their frequency when editing a character.

Introduction of selective control of each bit of block 2 separately using output signals of the reverse shift register 13 (selection signals

full character column) provides rewriting of information in one memory check of block 2 at the corresponding bit at the same frequency of clocking of block 2, which is in the input-output mode of clock information.

FIG. 5 shows the change in the input signals of block 2 when editing (recording) a point. The drawing does not show the remaining output signals (P1 - P7) of the reverse shift register 13. They are equal to zero potential, since the “single potential” is shown at the output 12, which corresponds to the second column, the sign position. The editing mark signal Mp is shown shifted by half the f-r cycle with respect to the time of the formation of the comparison circuits. This shift is necessary to increase the reliability of control of the inputs of block 2.

In accordance with the indicated algorithm for generating the signal Mp, it occurs on the line of a certain sign of the working field of the scatter plots. The selection of a point (column of the position) on the same line is provided by a signal. When register 13 overflows, it returns to the initial state and completes the unit to the clock column counter 17, and when the Juversive counter 15 overflows, the unit is added to the text line counter 18, which ensures the continuous movement of the editing light in all directions of the field graphics. For example, signals from the block for inputting graphic information (tablet) 11 correspond to a drawn line from the lower left corner to the upper right corner at an angle equal to the increment of the X and Y coordinates (45). At the same time, the input of the 2 O control unit from the output of the block 11 receives signals of the direction of coordinates of the movement of the edit mark (+ X m-V) and the transition cycles from a point to a point on the tablet surface. The same signals can be set using the keyboard of the text information input unit 9 via the circuit or at the input of the control unit 20. In the dotted graphics mode, using this node, the reverse shift register 13 of the shift and the reverse counters 15, 17, 18 are executed by the reverse.

Claims (2)

When entering a sloping line, the signals of the transition from point to point are simultaneously fed through the control input to the reverse shift register 13 connected in series through the first AND element of the first group 12 by a text counter 17; columns and a negative input to the reversible counter 15, connected in series through the second element AND of the first group 21 with a text line counter 13. For each of the specified cycles, the control block by block 2 (not shown in the diagram) forms an editing frame during which overwriting takes place the contents of the cell block 2 on the bit specified by the reverse shift register 13 and at the address specified, the reverse shift register 13 and 15j 18 address specified by the counters and 17. The shift of the counters 15, 17 and the reverse register 13 sd the yoke is carried out after frame editing: editing a frame duration equal to a frame display time at Rege neratsii latter. Counters 17 and 18 are triggered when the shift register 13 is reloaded to reversing counter 15, respectively. The entry in the selected cell of block 2 is zero or one unit is determined by pressing the record button, which is located on the keyboard of the input information block 9. When drawing a line along a predetermined path The keyboard is pressed to write to block 2 units. In this case, from the outputs of the keyboard 9, a logical unit is fed to the corresponding inputs of the corresponding elements AND of the fourth group 27, which is written into the corresponding cell of block 2 in the order described above. When recording a line from left to right, elements of the fourth group 27 are connected alternately for each clock cycle of movement from point to point in the order from the first section of z to the last (seventh). Moreover, the remaining inputs of the OR element by this bit (including the number and output of the AND element of the third group 26) are turned off by the signal of the edit mark M (see, Fig. 5). When the reversible counters of text lines and columns 17 and 18 overflow with respect to the size of the working field of the dotted graphics, the latter are automatically reset to the state corresponding to the point of the working field, for example, in the upper left corner of this, floor. Thus, the introduction of the “12 point editing block” allows for the input of point graphics, displayed and increased resolution at the screen sizes and the capacity of the buffer memory, designed to display a single page of textual information. At the same time, in the input graphics mode, the text editing block is used, and the cyclical operation of nodes in the input-Fyvoda mode of the point graphics is as close as possible to the cyclicity of their operation in the wcod-1 mode of outputting text information, which significantly simplifies the device, increases its reliability and decreases its value in general. With an increase in the capacity of block 2, the dimensions of the working field scatter graphic increase accordingly, and the editing block as a whole and the control of block 2 remain unchanged and no additional costs are required. With the help of scatter graphics with achieved resolution, it is possible to have a high-quality graphic display of various objects used in the technological process; projection of block volumes during their assembly; static and dynamic drawings and diagrams when learning. The device allows, in the dotted graphics mode, to achieve the maximum possible alphabetic-screen screen consoles. The graphic image has the ability to limit and to use the blocks and system components used in the input-output mode of the text information, both for displaying and editing graphic information. to simplify the system, reduce the cost and increase its reliability. In addition, the device allows you to extend the working field of point graphics to the size of the working field for displaying text information only by increasing the capacity of the buffer storage device without introducing additional control and editing blocks. Claims 1. A device for displaying information comprising a graphic information input unit; a text input unit; information, the output of which is connected to the first input of the text editing block and the first input of the interface block, the second input of which is the device input, the buffer memory block, the first input of which is connected to the first output of the text editing block, the second input - with the output the same device’s first output, the third input to the first output of the synchronization unit and the second output of the device, and the output to the first inputs of the first and second switches, the outputs of which are connected to the first and second switches of the driver ideosignals, respectively, the third input of the video signal maker is connected to the second output of the text editing unit and the output to the first input of the display unit, the second input of which is connected to the second output of the synchronization unit and the third output of the device, the third output of the synchronization unit is connected to the second input of the text editing unit and the fourth the device’s output, and the fourth output, to the second input of the first switch, the input of the character generator and the device’s output, the input of the character generator was taken from the poles The device’s output and connection to the second input of the second switch, is characterized in that it contains a point editing unit, the first, second and third inputs of which are connected to the output of the graphic information input unit; the first output of the text editing unit and the fourth output of the synchronization block, respectively, the first output, the editing block of the point is connected to the third input of the text editor, and the second output to the fourth input of the buffer memory block. 2. The device according to claim 1, wherein the point editing block contains a reverse shift register, the input of which is connected to the first input of the block, the first comparison node, the first input of which is connected to the TpeTbHh input block, the second input - with the output of the reverse shift register and the second output of the block, and the output with the first output of the block, a reversible counter, the first input of which is connected to the first input of the block, the second input - with the second input of the block, and the first output - with the first output unit, the second node of the comparison, the first input of which is connected to the third input of the block, and the second input to the second output of the reversible counter and two elements AND of the first group, the first inputs of which are connected to the second input of the block, the second inputs - C-, the outputs of the second comparison node and. reverse shift register, respectively, the output of the first element And the first group is connected to the first output of the block, and the output of the second element And is connected to the second output of the block. Sources of information taken into account during export 1. US Patent No. 3731299, cl. 34O-324, 1975. 2. Sokolov, V.,. Screen remote control automated system. Abstract information NIITSVSH, series Application of technical means in the educational process, 1975, p. 29-33 (prototype). fv / 3 Phage. 2 one, Fig 3 / L (f) e / ii (ilVXJ L .U | full of MaMoiAui iffr fO SfiOM / aifffftef Я9 /