DE1277268B - Die width counting device for a device for marking control strips for die setting and line casting machines - Google Patents

Description

Matrix width counting device for a marking device of control belts for die setting and line casting machines The invention relates on a die-width counter for a marking device of control belts for die setting and line casting machines with a keyboard similar a typewriter, the keys of which close a contact when pressed, which can be switched on via one of two or more, each of which is different Counting magazines assigned to fonts and designed in the manner of crossbar distributors and via a count encoder one of the width of the selected character supplies corresponding binary coded count value.

The task of a die-width counter is to obtain a measurement result that makes it possible to calculate the sum of the word lengths of a given text to match with a likewise specified print line length. This leads to fonts with individual characters of different widths Pressure can also be used to demand the die-width counter to adjust to the different widths of the individual characters.

This can be ensured in accordance with German Auslegeschrift 1 102 772 or British Patent 852152 in such a way that for each counting magazine assigned to a different font a separate counting value encoder is provided which has as many inputs as the keyboard has characters for those in the typesetting machine a latitude value is assigned. With a common font, including ligatures, numbers, punctuation marks and exclusions, these are about 90 different widths to be evaluated, to which just as many inputs of the individual counting value coder correspond, which are then coupled inside the coder by diodes with a much smaller number of output lines. Even with a relatively small number of counting magazines assigned to different fonts, this leads to an unacceptably large amount of diodes or circuit elements in general. This known principle is therefore limited to devices in which only very few different counting magazines are exchanged for one another.

Also a second, known from French patent specification 1181947 Possibility of adapting a die width counting device to different ones Counting magazines that only work with a single counting value encoder can use the Practice not fully satisfying, although with her the electronic effort and in particular the need for diodes in the counting value encoder is much smaller than in the method mentioned above. This saving in diodes is namely in this second Principle bought at the expense of the number of outputs of the counting magazines of the number of the width values used, which equates to an equally large number of Contacts received every time one counting magazine is exchanged for another must be switched on and off or toggled. Each of these contacts represents however, is a possible source of interference, so that the operational reliability at the second known die-width counter type is limited.

The invention is therefore based on the object of a die-width counting device indicate, on the one hand, the adaptation to a large number of different Fonts associated with counting magazines do not make an oversized electronic one Effort leads, on the other hand, but also the number of at a transition from one Counting magazine to another contact to be switched is kept as small as possible.

This task is carried out on the basis of a die-width counter of the type mentioned at the outset, achieved according to the invention in that the count value encoder only has as many inputs as selected by the immediate detection Die width counts of the most frequently occurring character widths are conditional and that in the counting magazines for the detection of matrix width intermediate values or particularly large die widths to match the entrance areas corresponding to these widths cables Diode groups are assigned via which such an input line with two or more outputs of the counting magazine connected to the inputs of the encoder is.

The invention thus works with a mixed coding of the latitude count values, by partially storing them in a separate counting value encoder common to all counting magazines, partly in groups of diodes in the individual counting magazines. These Compared to full individual coding, mixed coding offers the advantage of a Significantly lower expenditure on diodes or circuit elements at all and results in about the same in comparison with a pure common coding or only slightly increased expenditure on diodes results in considerable savings on contacts, with this contact saving a possible additional expenditure on diodes by far overcompensated, since contacts are a component that is much more susceptible to failure as diodes, so you definitely have to strive, especially the number of Keep contacts as small as possible.

In order to also be able to count matrix widths whose count values are above a limit count value due to the construction of the encoder can be further developed of the invention in the counting value encoder an additional, especially to a counting stage a binary counter for a count value which is above the largest by combination in the counter value encoder is available, and also the associated counting magazine for the input lines, which this limit count of the Verkoder's exceeding die-width counts are assigned, with further Provided groups of diodes that connect such an input line with one to the additional Line of the Verkoder connected counting magazine output and the outputs for the connect counts to be added.

The following - oversimplified - example may show the effect of the make clear the inventive basic idea.

In the drawing, the count value encoder ZV is provided with six inputs for one of the count values 1, 2, 3, 6, 12 and 16 each. The counting magazine ZM upstream of the counting value encoder has inputs E, each of which is connected to a key contact line, of which only a few are shown. Depending on the matrix width of the characters assigned to these inputs, these inputs are connected to one or more of the six output lines leading to the inputs of the count value encoder - partly via groups of diodes - to which the same count values are assigned as the inputs of the encoder connected to it. When the key assigned to output E 6 is pressed, the matrix width count value 6 is entered in the count value encoder and converted there into the corresponding binary signal combination, which advances the binary counter downstream of the count value encoder by count value 6.

The font to which the counting magazine ZM is assigned can now be used for matrices whose width counts are between the counts of the magazine outputs or above the highest count, i.e. H. the value 16, go beyond. To these values too The intermediate values are to be recorded precisely at those inputs of the counting magazine ZM or large matrix widths, diode groups are provided over which the relevant input line connected to two or more outputs of the counting magazine is.

For example, when the input E4 is applied, the positive pulse is simultaneously forwarded to the output lines 1 and 3 or to the corresponding inputs of the counter value encoder ZV. When input E10 is applied, the pulse goes to outputs 1, 3 and 6 at the same time, and when the counter value 22 (E22) is above the highest count value of encoder input 16 , outputs 16 and 6 or the corresponding encoder inputs are applied.

As can be seen from this greatly simplified example, is through the design of the counting magazine and the encoder according to the invention is an essential one Reduction of the space requirement and the total effort achieved; particular will the internal circuit of the encoder is much easier and clearer because the number of its inputs is only a fraction of the inputs that would otherwise be required.

In an example that is better adapted to practice - not graphically is shown - a binary counter is used, the counting levels of which are the counted values 1, 2, 3, 6, 12, 24 and 48 are assigned. With this counter is the reduction factor between the second and third stage only 1.5, while in all other stage steps. the factor 2 applies. This reduced reduction factor between the second and The third stage is achieved by a retransmission from the output of the second stage takes place on the input of the first stage of the counter, so that when working this Counter for the transition from counter level 2 (binary 10) to counter level 3 (binary 100) only one counting pulse is necessary. The counting capacity of the counter is less than that of a "normal" binary counter with the same number of stages.

Such a design of the binary counter has the advantage that with such a counter the matrix widths and line lengths are very simple Manner in the usual units of "point" and "cicero", although that Ratio of these units is 12 point = 1 Cicero.

If only the first seven counter steps are optionally applied to such a binary counter for the addition of the matrix width counter values, then the counter value encoder provided with seven code signal outputs (1, 2, 3, 6, 12, 24 and 48) can be used because of the intended return transmission in the Binary counters only put a highest matrix width count of 94 in them. So that this coder can now enter matrix width count values beyond the count 94 into the counter, a special line for the count 96 - corresponding to the eighth level of the binary counter - is routed separately in the coder, so that it cannot be combined with other values in the coder is.

In a counting magazine in which one of the magazine counts has this value groups of diodes are also provided which are assigned to this count value Connect the input to the output for the count 96 and other outputs that correspond to the count values to be added to the count value 96.

In general, such "count addition" is achieved by simultaneous Loading of several inputs carried out without overlap, d. H. without two or multiple application of the output Lines of the count encoder, on which the parallel signal combination is formed.

However, there is also an overlap at the output of the count encoder not detrimental to function; you only have to take this coverage into account in the count, because only one signal can ever be evaluated on each output line of the encoder will.

As an example, the formation of the count value 81 (still within the normal encoder working range) will be explained, to which no count value encoder input is assigned. If the count value encoder has an input for the count value 80, 81 can be formed without overlap by simultaneously applying the encoder inputs 80 and 1.

Since the count value 80 is formed by simultaneously applying the encoder outputs or counter inputs 48, 24, 6 and 2 , the value 81 is also obtained with overlap by z. B. the inputs 72 and 73 of the counter value encoder are applied, the input 72 being divided into the outputs 48 and 24, while the input 33 branches into the outputs 24 and 6 and 3. The output 24 thus receives a "double" signal, which can only be counted simply in the counter, so that in this way the count 81 is also obtained from 48 + 24 + 6 + 3.

Since the counting value encoder is only used once in the sampling and counting device exists and its internal circuit largely through the formation of the binary counter is fixed, you have to adjust the counting magazines for the different fonts the above explanations separately taking into account the coder training switch and either double application of the encoder outputs so far Avoid as possible or take into account that the count of a double acted upon Output of the encoder is always passed on to the binary counter only once.

Claims (2)

Claims: 1. Die width counting device for a device for marking control strips for die setting and line casting machines with a Keyboard similar to a typewriter, the keys of which each have a contact when you hit it close, the over one of two or more optionally switchable, each different Counting magazines assigned to fonts and designed in the manner of crossbar distributors and via a count encoder one of the width of the selected character provides corresponding binary-coded count value, d a -characterized in that the counter value encoder (ZV) only has as many inputs as the immediate one Acquisition of selected die width count values (e.g. 1, 2, 3, 6, 12, 16) of the am most frequently occurring character widths are conditioned and that in the counting magazines (ZM) for recording intermediate matrix width values or particularly large matrix widths the input lines corresponding to these widths (E 4, E 6, E 10, E 14, E 22) Diode groups are assigned via which such an input line with two or more outputs of the counting magazine (ZM) connected to the inputs of the encoder connected is. 2. Device according to claim 1, characterized in that the count value encoder (ZV) contains an additional line, which is routed separately to a counting stage of a binary counter, for a count value which is above the largest count value obtainable by combining in the count value encoder, and that the associated counting magazine ( ZM) for the input lines that are assigned to matrix width count values exceeding this limit count value of the encoder, is provided with further diode groups which connect such an input line to a counting magazine output connected to the additional line of the encoder and the outputs for the count values to be added. Documents considered: German Auslegeschrift No. 1 102 772; French Patent No. 1181947; British Patent No. 852152.