HU203162B - Method and circuit arrangement for controlling indicating boards operated to display variable light information in point-matrix working - Google Patents

Abstract

According to the invention, the actuator signal is generated in a series of step-by-step switching circuits to which the shift signals are applied to the step input, and to the enable input the data signal of serial pulses scheduled to represent the time distribution. The switching arrangement is accordingly formed by a series of step-by-step circuits (3010, ...., 3019), whose parallel outputs are coupled to the corresponding data inputs of the temporary storage (302), while the step-by-step circuits (3010, ..., 3019). ) with its enable input (E) is connected to the output (D0, ..., D9) of the data source assigned to the corresponding line. (Fig. 3) χατιΥ ■ Ssé & JJ 1st alto EN 203162 B Description: 12 pages (including Fig. 4) -1-

Description

BACKGROUND OF THE INVENTION The present invention relates to a novel process and a new apparatus for carrying out the process. The standard services of dot matrix mode information boards can be obtained by eliminating the need for light-emitting AND gates and nodes that are required in prior art devices by using relatively small amounts of incremental step-by-step circuitry, which not only results in significant material savings, but also in the demanding workforce and production equipment for reliability), but also significantly improves the reliability and operational security of the system in proportion to reducing the number of nodes.

For the purposes of this description, a dot-matrix information board is defined as a dot-matrix mode arranged at the nodes of row M and column N with a unique matrix field, e.g. are formed by light emitting active elements (light points) at the nodes of the row P and Q columns of the individual matrix field, and can be rendered either by independently activating any point of the table independently or by selecting a specific image pattern from a set of points in a matrix field with joint control, eg. to display alphanumeric characters. Μ, Ν, P and Q are natural integers, meaning eg. respectively 10, 30, 10, and 6. The row or column designations may be interchanged, in which case the two designations should be interchanged throughout the description.

The significance of the invention can be appreciated if one looks at the many systems that have emerged in the art in order to systematise the essence of the invention.

For decades, the development of optical imaging devices, with its increasing demands, has been influenced primarily by two major applications:

the advertising profession, and

- range of services requiring business or public information.

The latter includes eg. the railway, which can display operational signals, including traffic control signals, can use optical information devices (code plates, etc.) for traffic counting tasks, but it is also possible to use state-of-the-art or point-matrix devices for scheduling information (as in air traffic) .

Perhaps the greatest impact on the development of optical media was exerted by the need for public information at sporting events, where the program and public interest data on the conduct of the competition must first be displayed, followed recently by weighted, individual and results, etc - evaluation, however, in the case of racetrack optical displays, it is most often combined with information about the directly watched event with other information, explicit advertising and / or alphanumeric, pictorial or combined information about another event (especially concurrent sporting event).

My invention can be used in any of these areas if the light information device operates in dot-matrix mode without the need for a shaded image.

Many decades ago, they provided information by displaying still images, then alternating or moving them. Keeping these simple tools still small, they later switched to displaying optical images of individual pixels that can be activated independently of each other, and finally completely independent or controlled by a character field. In many solutions, pixels are arranged in nodes of rows and columns. If any one of these control variants can be used in an optical information board, the so-called "opt-in" we are talking about a dot matrix controlled board. The information carriers of the pixels may be passive and / or active elements. Passive elements provide pixel information by selective reflection of light, emitting warm or cold light energy from active elements. All of these, therefore, display information with a light effect. For example, incandescent lamp, gas discharge tube, semiconductor light source, liquid crystal, etc. using pixel elements. Such light-effect boards are called dot-matrix light information boards. The control mechanism of the present invention, within the scope to be further specified, can be used in any system of luminous point-arrays with light effect.

The control of point-matrix tables can be achieved by using a video signal from an external source, and the system itself can be provided with an image decoding device and a data synthesizer on the other hand. One device allows the device to directly display the image to be displayed (for example, by drawing with a pencil on the tracing paper, the desired information is already processed and displayed by the device.) The other device is an arithmetic commanded by a video signal of any function. arithmetic synthesizes the video signal of an imagined but not yet existing image. There are many systems that optionally process such different image sources. First, the Hungarian system called Publicolor was launched on the world market, followed by the American company Conrac and the Swiss company Swisstiming. It is irrelevant to the application of my invention where the video signal that ultimately controls the light switches comes from,

In almost all tables, the luminous intensities of the pixels in the matrix fields can be modified together.

Dot-matrix-controlled information boards, which provide a nuanced picture, satisfy every need, for every pixel - e.g. By selecting the focal angle according to degrees, different light intensities may be displayed according to the degrees.

The dot-matrix control is performed in a short period of time relative to the inertia of the eye. There are many points of light that can form dot-matrix tables. If

HU 203 162 Β pl. Arrange 10 x 6 pixel matrix fields in 30 rows and 50 columns, resulting in 30 · 50 · 10 · 6-90000 pixels in the resulting table. For 10 rows and 40 columns the number of points of light is 24000 etc. Controlling each light point per cycle according to a completely independent set of conditions (sensing the coincidence of all conditions in the light switch switching circuit) would require a large number of wires and combining individual instructions per cycle would require significant load-bearing logic networks. However, there may be new demands for individual control of pixel behavior, which would further complicate the control mechanism for systems that satisfy maximalist demands. Therefore, it is common to control point-matrix tables such that, by step-by-step in-cycle timing, they provide a preparative signal to each of the light points switches of the consecutive rows and columns of the same order in each matrix field, and illuminated by means of preparatory circuits which, after considering the relevant additional conditions, only supply actuators for the light switches for which the evaluating circuit has determined that the light coordinates for the given coordinate need to be activated in a given cycle. In such prior art systems, the actuator signal is generated as follows: a stepper circuit is used as a matrix field, whose successive orthogonal outputs are coupled to the consecutive column conductors of the matrix field. A step signal (ski lift signal) corresponding to the time division is applied to the step input of the stepper circuit, which in turn activates successive column outputs; an actuator will receive an actuation point for a given coordinate if the data signal assigned to the row at the time of activation of the column coordinate output of the same coordinate is at an activating level.

This is detected by an AND gate between the appropriate coordinate output of the stepper circuit and the transition coordinate of the point coordinate light switch, one input of which is the corresponding pole coordinate output of the stepper circuit, and the other input is the same line outputs of the data source. Compared to a single point-by-point test, this significantly simplifies both wiring, circuit complexity, and signal processing time, and optimizes additional functional expansions.

The present invention is based on the recognition that the above mechanism can be further improved and the complexity further reduced for a significant number of applications, bearing in mind that these new service demands on the evaluation mechanism will no longer arise and will be less complex than the currently used mechanism. mechanism may also be sufficiently flexible. The improved mechanism of the present invention can be applied to any dot-matrix mode table, as long as there is no need for arbitrary multicolor and / or shade light intensity pixel control per cycle, while fully meeting all other needs.

In accordance with the present invention, one of the features of the known mechanism is to provide a common preparation signal for each pixel switch in a row or column in a sequential order in each matrix field, and to provide the actuator input of the prepared pixel for the coincidence of shift and activation level data. According to the invention, however, for each matrix field of P (P eg 10) rows, not one field controller is used, but P series controller stepper circuits, the parallel outputs of which are coupled only to the column points of the corresponding row. Thus, there is no need for a separate circuit for coincidence detection: bypassing the AND gates P * Q (e.g., 10 * 6-60) of the matrix fields and the resulting complex wiring, the number of nodes is reduced to about one third. Not only does this reduce material and labor and machine time, but the impact of greatly reducing complexity on system reliability and reliability and on maintenance requirements is particularly significant. The joints in the nodes are soldered or soldered. wire wrap, it requires expensive automation and high quality live work.

Obviously, in prior art solutions, a triple node requirement not only makes production more expensive, but even with the use of advanced technology, there is a triple chance of interruption due to a binding failure.

The present invention relates to a process for making egyedi · egyedi unique matrix fields (consisting of P Q Q light points arranged at the nodes of P and Q columns), e.g. to control point-to-point information boards constructed from character fields, using line control and column control preparation signs and an actuator output signal when the shift and data signal coincide. The invention relates to shifting shift signals within the matrix field to the step input of a stepper circuit assigned to each row and connecting to the enable signal input of each line controller stepper circuit the associated data signal assigned to the column points to be activated within that line within that cycle. in phase situations activating logic level.

The invention also relates to a circuit arrangement for providing this control. The invention consists in that the individual matrix fields are formed by P-series control stepper circuits, the corresponding terminals of the light-point switching circuits belonging to each row of the individual matrix fields, e.g. the input terminals of the temporary storage are coupled to the respective serial output of the stepper circuit assigned to the respective row and the corresponding inputs of the data source (s) which are connected to the stepper cycle are connected to the enable inputs of the queue control stepper circuits (s). 3

HU 203 162 Β

The invention will be described in more detail by means of bars, a preferred embodiment compared to a prior art solution.

Figure 1 is an example! illustrates the numbering system of points in a unique matrix field. Figure 2 illustrates an exemplary circuit diagram limited to three rows illustrating conventional control of a matrix field of such a structure. Figure 3 is a schematic diagram, limited to three rows, of an exemplary circuit for use with the control according to the invention, in which case the control signals shown in Figure 4 are formed in the case of an exemplary picture.

Figure 1 shows that the six pixels of the first row (0 order) of the exemplary unique matrix field are represented by the coordinates 00, 01, 02, 03, 04, and 05, the highlights of the second row 1 being 10, 11, 12, 13, 14, respectively. and 15 and thus increasing the row coordinate by row, and finally the coordinates of the six points of light of the tenth row of the 9th order 90, 91, 92, 93, 94 and 95.

Comparing Figures 2 and 3, it will be seen that in the prior art, as in the circuit arrangement according to the invention, the active element arranged in a single pixel, the light sources 204 and 304, respectively, are respectively 203 and 303 respectively. the power amplifier activates (thus, the light source 204,304 will illuminate in the given cycle) when the corresponding temporary buffer 202, 302 is active at the moment of reading within the cycle. In both solutions, the function of the R1 and R2 reset signals and the row and column preparation signals is the same. The phase angle of the readout can be controlled by the F signal throughout the cycle, thus controlling the luminous intensity for all light points. As their ski lifts, both solutions use the clock speed Cx (x-0, 1, 2, 3, 4, 5 per cycle). Not only is the process described so far the same for the two solutions, but so far there is a switching technique, which is highlighted by the similarity of the reference numerals.

In the embodiment of FIG. 2, a matrix field-specific field control stepper circuit 201 is applied, and a temporary AND port 205 is connected in front of each of the pixel switch transitions 202 of the matrix field, one input of the stepper circuit having the corresponding serial output the output D0, ..., D9 of the data source - providing the data signal assigned to the corresponding coordinate line - is connected. The corresponding L and V outputs of the signal source (s) providing the row and column preparation signals are coupled to one input of an additional AND gate 206, and the output of this further AND gate 206 is connected to the enable input E of the stepper circuit 201. Thus, in this embodiment, the parallel output wires of the stepper circuit 201 and the ten data lines connected to the outputs D0 ...... D9 form a matrix: the AND gates 205 are arranged in the nodes of the matrix.

Thus, for a matrix field of 10 · 6 light points, sixty AND gates are used, with two inputs and one output: a reliable connection to be made as an AND gate at three or three additional connection points. There is an advantage to these disadvantages: instead of P stepper circuits, for each matrix field, e.g. 166521 and 171974 respectively. HU patents.

In the embodiment of Figure 3, the corresponding L and V outputs of the signal source (s) providing the row and column creation signals are coupled to the first and second preparation inputs S and O of the temporary storage 302 such that the first S inputs The second O inputs are combined according to the corresponding columns of the whole table. For each row of the unique matrix field, a queue controller 3010, ..., 3019 is provided with a stepper circuit whose parallel outputs are coupled to the corresponding serial data input of the sequential temporary storages 302 and the data source D assigned to that queue. .... D9 output is attached. Of course, the representation is sketchy to illustrate the functions. so e.g. the connection between the temporary storage 302 and the queue control stepper circuits 3010, ..., 3019 is not by decimal but by a binary organized wire.

Let's look at the mode of operation. The step P 3010, ..., 3019 of the P piece queue controller P10 (in my example) is continuously incremented by the common cycle symbol Cx, and then every step Qik (Q-6 in my example) starts from the beginning. The stepper circuits 3010, ..... 3019 operate simultaneously across the board. The enable signal to input E is composed of a series of serial pulses synchronized to a Cx rate signal, representing a logical state, which determines whether the system forces an active or passive state to a corresponding sequence of storage at the appropriate sequence rate within the cycle. (Depending on the system designer's other considerations, you can choose whether to have a special status or not).

Figure 4 illustrates some exemplary control signals.

If, for example, to force the second, third, and fourth order (01, 02, 03) storage cells of the first row, the data signal from the output D0 assigned to the first row is in the phase of the C1, C2, and C3 sequence logic and The state of cells with 03 coordinates will be active accordingly. However, if an output pulse is received at the output D1 assigned to the second row at the time of the sequence signal C0 and C5, the state of cells 10 and 15 will be active. I also show in Fig. 4 that the data signal from the output D9 assigned to the tenth row only has an active state at the time of the C4 sequence, so that only the state of the coordinate cell 94 will be active in the tenth row.

Of course, there are many variations depending on the application of the state-of-the-art products and the capabilities of the company, but the basic features shown are all present. Similarly, a variety of kiwi-41 is obtained using the invention

EN 203 162 Β complete shapes and variants whose common feature is precisely to eliminate extra AND gates per point of light and, consequently, significantly reduce component demand, technology input, and complexity at a cost per P-step per matrix circuit application.

Claims (4)

1. Procedure Ν · Μ is a so-called. · Μ unique matrix field (consisting of P Q Q points of light arranged in the nodes of P and Q columns). for controlling dot-matrix arrays (Ν, Μ, P and Q natural integers, such as 10, 40, 10, and 6, respectively), which, in a given time sequence, provides a common line control preparation signal to all matrix fields of the table in the same order; each matrix field is always assigned the same column control prefix to the columns in the same order, while the resulting set of light points are to be activated in the given cycle for the light point switches. is added to the step input of each stepper circuit assigned to each row, and a data signal is applied to the enable input of each line controller stepper circuit, which data signal is active within that line during that cycle controlling phase coordinates of the corresponding coordinate in the phase positions assigned to the pivot column points in the phase logic of the activating logic level and the corresponding parallel output signal of the row control stepper circuit. Method according to claim 1, characterized in that the output signal of the queue control stepper circuit is connected to the data input of a temporary storage of the corresponding coordinate point switch. 3. Circuit layout Ν · Μ is a so-called. · Μ array of unique information boards (consisting of P * Q light points arranged in P rows and Q columns). for control in point-matrix mode (természetes, M, P and Q natural integers, such as 10, 40, 10 and 6, respectively), which includes circuit (s) for generating row control and column control preparation signals, t and per node created with temporary storage! one light point switch, characterized in that the matrix field is formed by a series of P-series step-by-step circuits (3010 ..... 3019) whose parallel outputs are coupled to the parallel data inputs of the sequential temporary storage (302); with the enable input (E) - the corresponding output (D0, ..., D9) of a data source providing a data signal having a structure corresponding to the time division cycle is connected. The circuit arrangement according to claim 3, characterized in that the row-by-row temporary stores (302) are provided with first and second preparation inputs (S, O), respectively, with an output (L,) of the row or column controller preparation signal. or V) connected.