SU1152024A1 - Device for displaying information on screen of cathode-ray tube - Google Patents

Abstract

A DEVICE FOR DISPLAYING INFORMATION ON THE SCREEN ELECTRON-BEAM TUBE, containing the receiving register and the first pulse distributor, the first inputs of which are the first input of the device, the second input of which is the input of the pulse generator, and the first output of the device is one of the outputs of the first pulse distributor the other outputs of which are connected respectively to the inputs of the first, second and third elements OR, a co-switch, the second pulse distributor, the first and second deflection shapers voltage, the outputs of which are, respectively, the second and third outputs of the device, the block forming deflection functions, characterized in that, in order to improve the performance of the device, it contains the third pulse distributor, the control unit overwriting the backlight code, the backlight register, the element AND NOT and the fourth OR element, one of the inputs of which is the second input of the device, and the output is connected to the second input of the first pulse distributor and the input of the third pulse distributor, the outputs of which connect The inputs of the first group of the overwriting code rewriting control unit, the inputs of the second group of which are connected respectively to the inputs of the first, second and third OR elements, the output of the rewriting code control block are connected to the first input of the switch, the second input of which is connected to the output of the receiving register, and the switch output is with the first input of the register of the illumination code, the serial output of which is the fourth output of the device, (L and the bit outputs are connected to the corresponding inputs of the AND - NOT, the output of which is connected to another input of the fourth OR element, the first inputs of the second pulse distributor and the first and second deflection voltage drivers, the output of the pulse generator is connected to the second inputs of the second pulse distributor and the backlight code register; The outputs of the second pulse distributor are connected to the inputs of the first group of the deflection function forming unit, the inputs of the second group of which are connected to the other outputs of the first pulse distributor, and the outputs of the block are formed. nor the deflection functions with the second and third inputs of the first and second deflection voltage drivers.

Description

The invention relates to automation and computing and can be used in the construction of operational information display systems. The aim of the invention is to improve the speed of the device. FIG. 1 shows a functional diagram of the device; Fig. 2 is a variant of the functional block diagram of the overwriting code rewriting control block; in fig. 3 - table of the generated alphabet, firmware numbers, their codes for highlighting. The device contains a generator of 1 chips, distributors 2-4 pulses, a block 5 forming deflection functions, a receiving register 6, a register 7 of the illumination code, a block 8 controlling the rewriting of the code of the illumination, switch 9, drivers 10 and 11 of the deflecting voltages, element AND-NO 12, elements OR 13-16, inputs 17 and 18, and outputs 19-22 of the device. The block 8 for rewriting the code of the illumination contains triggers 23. groups of elements AND 27-29, elements OR 30 and 31. The device implements a microprogram (PGM) method of image synthesis. The functionality of a PGM set consists of 12 PGMs (of the same structure and number of elements). Two PGMs are six-element, four PGM are five-element, 6 PGM are four-element. The images that are formed by the device are synthesized according to their structure and PGM structure. The proposed device forms an image in the following combinations of PGMs: from two 6-element PGMs, nz one 6-element, one 5-element and one 4-element PGM, one - 6 and two 4-element PGM, from two 5 -element and one 4-element PGM, from one 5-element and two 4-element PGM, from three 4-element PGM. The illumination code is twelve bits. For those with PGM readings, in which the illumination code is more than twelve digits, the last PGM is taken such that its element, which should be displayed on the CRT screen, is included in the twelve digits. For example, for a combination of 6, 5, and A-element PGGs, the last 4-element PGM will have only its first element. In the known device, combinations of PGMs are taken such that their illumination codes do not exceed twelve bits, i.e. such a combination as given in the known device is not used. Therefore, the proposed device capabilities for displaying information is wider. In the proposed device, during the formation of each PGM, in case some of its last elements are not included in the image, its early termination is possible, which achieves higher speed in comparison with the known device. The device forms two six-element PGMs, four five-element MPGs and six four-element PGM: At this time, only one output of register 2 can be in the excited state, which corresponds to the PGM currently being generated by the device. During the operation of the device, signals are generated only at those outputs of register 2, which correspond to the PGM participating in the formation of the symbol. At the moment when the next pulse, interrogation from the output of the element OR 13 will detect register 2 in a state characterized by the fact that it is no longer necessary to form PGM, it passes through register 2 and appears at its output as a signal. End of character (bus 22) . The code of the required PGMs is entered into register 2 at input 17. Register 3 is intended to form the excitation functions of PGM, since the maximum elementalness of PGMs included in the function set is six, therefore, register 3 has six outputs and is controlled by pulses from the output of the ГИ1. At the end of the formation of the PGM (the signal from the output of the element IS-NOT 12), register 3 is reset to the initial state (all outputs are in the zero state). At this time, only one output of register 3 can be in the excited state. Register 4 operates similarly to register 3 and is designed to determine the sequence number of the PGM in combination. 311 Replaced by signals from the output of SHB1 element 13. From the Start signal (bus 18), its first output is transferred to the excited state, it is transferred to the following states by the signals about the end of BG formation, Block 5 is designed to form deflection functions (X ( +), X (+), U (-) PGM, on one side receives signals from the output of reg 3, and on the other - from the output of register 2. Block 5 switches the outputs of register 3 depending on the presence of a signal on one from the outputs of register 2 to certain inputs of the formers 10 and 11 of the bias voltages. Moreover, from the outputs of these formers, the voltages necessary for the formation of only the PGM are removed which corresponds to the excited output of register 2. The receiving register 6 stores a 12-bit image counting code. The illumination code of the PGM that stores At the moment, the device is forming. The register 7 of the code is illuminated. The signals from the output of the generator 1 are output. From the output of the register 7, the illumination code is sequentially output to the CRT modulator (not shown). The group of outputs of the register 7 is connected to input I give AND-NO element 12, which at the moment of zeroing the contents of register ra 7 generates at its signal input End PGM forming. The content of one or another part of the receiving register 6, depending on the control signals from the output of block 8, is rewritten via switch 9 to register 7. The codes for the PGM illumination in the receiving register are stored in the same sequence as the signals of the numbers of these PGMs 2. Block 8 is designed to generate a formation from receiving register 6 to register 7 of the highlight code. On the inputs of block 8, signals are received from one side, which characterize the elemental nature of PGM, which is to be formed at the moment, and signals about the order number of PGM in this combination. Group 27 And generates signals to control the forwarding of the backlight code of the first PGM in combination. Element And 27 serves to form the transfer control signal for the first six bits of the receive register 6 to register 7, element 27 and five for the first bits, element 27, for the four first bits. On trigger 23, the fact that the first six are shipped is remembered, and on trigger 24, the first five bits are shipped. A group of elements And 28 slutkit to form a signal was controlled by sending the illumination code of the second PGM in combinations. Elements 28 and 28 are used to form a transfer control signal when the first PGM combination was six-element, And 28 elements when the first PGM combination was five-element, And 28 element (, when the first PGM combination was four-element). controlling the transfer of the six second bits of the receiving register 6 to the register 7, the AND 28 element of the second bits, the AND 28 element — the pattern of the second bits. Element I 28 serves to generate a transfer control signal for the five second bits, the And 2 elements 8 5J, - four second bits. Single states of the flip-flops 25 and 26 mean that the first eleven bits from the receiving register 6 were copied to the register 7 for the first and second PGM combinations, the single state of the trigger 25 to the zero state of the trigger 26 - the first ten bits, the zero state of the trigger 25 and the single state 26 the first nine bits, the zero states of the triggers 25 and 26 - the first eight bits. The group of elements 29 serves to form the forwarding control signal for the remaining bits reception register 6 in regis mp 7 depending on the number of bits sent for the first two PGM combinations. The formers 10 and 11 form a voltage variance depending on the deflection functions arriving at their inputs. Upon completion of the formation of the PGM, their inputs receive a signal from the output of the element AND-NO 12 to force the installation of the electron beam at the beginning of the familiarity. Elements OR 14-16 form signals about the number of PGM elements, elemental or 14-0 six-element PGM, element OR 15 — about five-element PGM, element W 16 — about four-element MIG. The device for displaying information on a CRT screen works as follows. On input 17 into the device, the code of the required PGMs and codes of the highlighted PGMs are entered with the code. Information about PGMs that are part of the formed image is stored in register 2, the illumination codes of these PGMs are recorded in the receive register 6. The Start signal (input 18) is excited by the output of register 2, which corresponds to the first PGM entering into the composition of the combination, and at register 4 its first output is excited. The Start signal starts generator 1, which at its output begins to generate a sequence of pulses. The signal from the output of register 2, corresponding to the first required PGM, goes to block 5, to another group of inputs of which signals from the outputs of register 3 begin to flow and as a result, the outputs of block 5 form a deviation to the function corresponding to the first required PGM, In addition, the signal from the output of the register 2 through the corresponding element OR 14-16 enters the input group of the control unit 8, to another group of inputs of which the signal from the first output of the register 4 arrives and as a result, at the output of the unit 8, it forms the signal by overwriting the illumination code of the first required PGM in register 7. As a result, the input of 1 pulse pulse from the output of generator 1 to the input of register 3 and register 7 causes the electron beam to move along the path of the first required PGM and the screen displays those elements that are part of the image . Upon the completion of the formation of the first required PGM, a signal appears at the output of the AND-NO 12 element, which sets register 3 to its initial state and, through the element OR 13, transfers register 4 to the state in which its second output is excited, and input to the input of register 2 , generates at its output a signal corresponding to the second required PGM. From the next pulse from the output of generator 1, the formation of the second required PGM begins, after completion of which the register 3 is reset to its initial state, into register 4 of the excitation Its third output, and a signal corresponding to the third required PGM appears at the output of register-2, then the device generates the third required PGM, the device does not necessarily form three different PGMs, their number may be less and is determined by the complexity of the displayed information . If the next impulse is with you ;. the element OR 13 goes to register 2, and there is no information about the next required PGM, it passes to its output with the signal End of the character. By this signal, the device is reset and is prepared to receive an informational description of the next character. Thus, on a CRT screen (not shown), a symbol is displayed with less time. This makes it possible to display large information on the display screen, and in the case of a group imaging device, to serve a larger number of VKUs.

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Claims (1)

DEVICE FOR DISPLAYING INFORMATION ON THE ELECTRON BEAM TUBE SCREEN, containing a reception register and a first pulse distributor, the first inputs of which are the first input of the device, the second input of which is the input of the pulse generator, and the first output of the device is one of the outputs of the first pulse distributor, the other outputs of which connected respectively to the inputs of the first _? the second and third OR elements, a switch, a second pulse distributor, the first and second deflector voltage generators, the outputs of which are the second and third device outputs, respectively, a deflecting function generating unit, characterized in that, in order to increase the speed of the device, it contains a third pulse distributor , control unit for rewriting the highlight code, the highlight register, the AND element and the fourth OR element, one of the inputs of which is the second input of the device, z and the output is connected to the second input of the first pulse distributor and the input of the third pulse distributor, the outputs of which are connected to the inputs of the first group of the backlight code rewriting control unit, the inputs of the second group of which are connected respectively to the outputs of the first, second and third OR elements, the output of the backlight code rewriting control unit is connected to the first input a switch is the fourth output of the device, and the bit outputs are connected to the corresponding inputs of the NAND element, the output of which is connected to another input of the fourth OR element, the first inputs of the second pulse distributor and the first and second shaper of the deflecting voltages, the output of the pulse generator is connected to the second inputs of the second pulse distributor and register code backlight, the outputs of the second pulse distributor are connected to the inputs of the first group of the block forming deflecting functions, the inputs of the second group of which connected to other outputs of the first pulse distributor, - and the outputs of the unit are formed. the deflection functions - with the second and third inputs of the first and second deflectors. SU, "1152024