DE2031532A1 - Control system and coding method for curve recorders and similar devices - Google Patents

Description

The present invention relates to control systems for chart recorders and the like and in particular a system in which the required for a given drawing The amount of data and the time required to transfer the data are significantly reduced. ■ ■

Modern digital data processing systems are working at such astonishingly high speeds that it creates difficulties for input / output systems and in particular for such output systems arise the cam thrusters or use drawing devices. Today's jury writers draw quickly and accurately and have a high level of graphic adaptability and deliver exact copies. . ,

BATH ORIGINAL

These chart recorders are measured iri it ee chn scales but extremely slowly.

In "on-line" operation there is a disproportion between the high-speed computer and the connected curve recorder. The much faster calculator is firmly connected to the chart recorder and must be aware of it adjust slower speed. There is precious Hechner time going on lost, so that one looked for other solutions. If, on the other hand, smaller computers were used for tasks that required an instant graphical representation, Or if very simple drawings should be made, there is nothing wrong with "on-line" operation. This however, are idealized examples of an "on-line" operation, the real problem being that in the connection between Computer and curve recorder exists, has been bypassed. The "background operation", which is then enforced, in reality brought no improvement in the disparity prevailing for the operating speed between computer and chart recorder, but only brought about an apparent improvement through sensible use the unused computing time. Apart from that, were for the Background operation Additional devices, additional operating time and additional, more complicated program equipment required- * borrowed. Even if these additional factors are not considered disadvantages have been evaluated, remain as a necessary prerequisite ^ that a versatile, mid-size calculator on the go

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Another solution to the problem of computer / write rye T ¹ O in dung in "on-line" operation provided for a single computer, which was connected to a variety of Eurvenschreibern. Although this specialist cleaning company brought about a better use of the I.ecliier, additional curve recorders were required:?. With the associated control logic, additional 1 ^: ΐοgramia equipment and programming time and, above all, a computer that was suitable for this operation. The higher costs and other disadvantages of this process drew attention to other areas. The next step was to switch to "off-line" operation.

In the case of curve recorders in "off-line" mode, the data output of the central processing unit of the computer is transmitted via an intermediate device to the curve recorder, which is neither mechanically nor electrically connected to the computer. Often the computer and chart recorder were running far apart from each other in different places. The most common intermediate device used today is a single-purpose magnetic tape player. Ι, ΰ "off-line" operation, the central data processing unit delivers data at very high speed to a standard laynet tape device, which records the data on magnetic tape. Dae 3i ^; nd vi is then taken out of the recording device and transported to the video playback unit, which processes the data for the curve recorder at a considerably slower speed if they were recorded on bend. The data

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or write commands are arranged on the tape as serial binary data seven or nine bits wide, such as in U.S. Patent No. ' 3 »199» 111 is set out. The binary data or characters are also grouped into groups of three, with each character in the X, Y or Z direction the movement of the curve recorder. Although the "off-line" operation gave satisfactory results, However, the total costs of the data processing system increased in spite of the savings in computer time. First, the cost of the rendering unit was not as rapid to compensate for by saved computer time, since this playback unit was only reserved for one task and therefore often remained unused. Second, the magnetic tape delivered even at the lowest tape speed that is common today high storage density, more command data for the recorder than it could comfortably process. Therefore, fill commands recorded on the tape that are not an activity of the writer, thereby reducing the storage density. That in turn has the consequence that longer tape lengths are required and the required computer input / output time increases. Changes in the tape coding and the associated program equipment led to recorder control systems in the "off-line" and "on-line" operation, which resulted in certain savings in computer time and tape length. But also these systems did not provide a completely satisfactory solution for effective and rapid data transfer between the computer and the recorder.

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Also the costs for the "off-line" operation required ' Single-purpose magnetic tape reproducing units could be saved by Do not simply reduce Hechnerzeit.

The invention is based on the following task: It should be a control system for chart recorder and the like are created, with the help of which those generated by digital high-speed data processing systems Data transmitted to the chart recorder effectively and quickly will.

A control system for curve writers and the like is also to be created in which the characters Are arranged on magnetic tape to save space.

A control system for curve recorders and the like is also to be created in which a group of Data commands describes movements that are in other directions run ala in multiples of 45.

There should also be a control system for curve recorders and the like are created that are more effective, more economical and is easier to operate than the currently available control systems.

Furthermore, a control system for curve recorders or the like is to be created, which in particular suitable for remote batch processing.

Furthermore, a control system for curve recorders and the like is to be created that can draw various types of data effectively and quickly, in full *,

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solid lines, dashed lines, as characters and / or arbitrary symbols.

These and other features of the invention can be found in the appropriate sections of the description the drawings explained in more detail, in which an inventive Control system is shown.

The invention can be briefly summarized as follows : The invention relates to a control system for a curve recorder, with the output data from the central processing unit of a computer are arranged according to a new code format. The new code format cuts down quite considerably the amount of data and the time it takes to transfer the data to a chart recorder in order to get from a graph recorder to get a given drawing. This is made possible by the incorporation of repeat and Supplementary control commands in the code arrangement. A control device in the curve recorder with devices that respond to the repeat and supplement control commands and decodes the data and then transmits the appropriate commands to the chart recorder.

So Eb becomes a control system and coding for a chart recorder created, thereby producing the output of a high-speed digital data processing system can be recorded effectively and quickly by a chart recorder can. Although the system described below is particularly suitable for a step-by-step chart recorder,

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it can also be used as a controller for similar devices. This versatility is especially true when it comes to coding.

In the "off-line" mode, the output data of the digital processing equipment, which are arranged in a novel code format, which will be explained in more detail later, transferred to an appropriate data storage device. Doit mechanically transforms the data into a control device transported where they are decoded. The resulting write commands are then sent to the chart recorder transmitted, in the correct order, which is determined by the control commands within the coding. in the "On-line" operation is the output data of the digital processing system transmitted directly to the control device via the input / output channel for decoding ". Also "Background operation" can be accomplished with the present invention arrange. :

In the novel coding as used here, characters consisting of 6 bits are recorded on magnetic tape or a corresponding data storage device. Ten of the resulting 64 combinations or binary characters are reserved for the classic step-by-step writer movements, namely + X, + Y, -X, -Y, + 1 + Y, + XY, -X + Y, -XY, + Z and - Z or lifting and placing the pen. Of the remaining 54 binary characters, 16 are reserved for supplementary movements, with one of the 10 step movements mentioned above being supplemented by one or more of the other step movements

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will. Step symbols or control commands are also included provided for the coding, so that each of the above 24 write commands for a certain number of steps behind- ■ can be repeated if two suitable binary characters are coupled together. For this purpose are a total of 30 binary characters are provided, with each character having a corresponding arithmetic number in steps of 1-30 corresponds. Since there is a likelihood that the number of these kinds of steps will exceed the highest possible number, of 30, a repeat character is provided. The occurrence of the repeat character or repeat control command within the coding and a subsequent step number, which represents the number of repetitions, causes the following code pair of write command and step command is repeated up to thirty times. By combining only In this way, the curve recorder can program four binary characters to carry out series steps, as was previously the case a combination of a few hundred binary characters' required was, v / as evidently a considerably longer data transfer time and end length required. The greater part of the remaining binary characters is used to define the block address, used for search commands and for the start, stop and reset commands of the curve recorder.

The control device, which is an intermediate electronics between the computer and the recorder, serves as the core the control system. According to code command pulses via corresponding

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Logic and associated electronic circuits determine the. Control device the recorder movement. The control device can be adapted to the input / output channel of the computer in "on-line" mode, to the terminals for remote batch processing or to a magnetic tape playback unit or corresponding data storage devices in "off-line" mode. In addition, as already mentioned, the control system and the control device are compatible with the "background operation".
Brief description of the drawings

FIG. 1 is a simplified diagrammatic representation a step-by-step, digital curve recorder, which is particularly useful for operating in conjunction with a control system according to the invention is suitable.

Figure 2 is a graphical representation of the common eight major vector movements of the pen represented by solid lines lines are shown, and the possible supplementary evidence £ un (fen, associated with each major vector movement and represented by dashed lines.

FIG. 3 is a combined block and logic diagram of a control system according to the invention.

Figure 4 shows three examples of graphs 4 (a), 4 (b) and 4 (c) made according to the present invention were drawn.

FIG. 5 shows part of one according to the present invention Invention coded la & gnetbanda.

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Description of preferred exemplary embodiments

In the drawings, the same elements are identified by the same reference numerals. FIG. 1 shows a simplified diagrammatic representation of a digital curve recorder, which is generally designated 100 * The curve recorder 100 is a conventional, commercially available device which is particularly suitable for the graphic representation of ν η computer outputs. The preferred embodiment of currently available computers, e.g. B. Model Έο. Houston Instruments, "Inc. DP-5 provides reproducible recordings of graphs, maps, graphs, and drawings that can be annotated with alphanumeric and arbitrary symbols as desired.

On suitable recording paper 104 is by the movement of the pen 106 over the paper and / or a drawing 102 is produced by the movement of the paper 104 under the spring 106. In most cases, as well In the present description of the preferred embodiment of the invention, the recording paper x 104 and moves spring 106 relative to orthogonal X and Y axes in single step lengths of 0.25 mm (0.01 inches). The feather 106 can also be moved up or down, in clearing of the Z-axis, which is perpendicular to the X- and Y-axis is standing.

The pen 106 is, as Figure 1 shows, attached to a holder or a carriage 108, the

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gradually in "both directions" across the entire Breita of recording paper 104, usually 28 cm (11 inches), can be moved. The carriage 108 is driven by a stepper motor 110 and a pulley system that ■ generally designated by 112 iBt. This creates the movement shown in the direction of the Y-axis. Pure a movement in the X-axis, the recording paper 104 becomes stepwise in both Directions under the spring 106 moved past, by a stepper motor 114 and a gear train that is indicated generally at 116. The recording paper 104 is in the present embodiment from the rear Section 118 moved to front section 120 and is in both sections folded in a zigzag fashion. Also conventional roll paper and drum methods can be used for moving the recording paper 104. Both procedures are compatible with the present invention and give satisfactory results, however this becomes zigzag Folding method preferred. The movement of the recording paper-104 from rear section 118 to front section 120 referred to as paper downward movement and represents a movement in the positive X-axis + X direction. Accordingly, a paper rolling movement of the paper 104 is a movement in the direction of the negative X-axis -X. The aforementioned upward and downward movement of the spring 106 in the + Z or -Z directions becomes by turning a solenoid (not shown) on or off because it is located in the pen housing 122.

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The stepper motors 110 and 114 and the solenoid are actuated by signals that the recorder electronics, generally designated 124, supplies. These signals are of the logic elements and the associated electronics (Figure 3) generated by the control device 126, as will be explained in more detail will. The direction of positive movement along each of the three axes is through the three indicated generally at 128 mutually perpendicular arrows indicated.

All drawn lines are composed of step-by-step straight lines that form the segments of the represent longer lines. The straight line segments can be in the positive or negative direction and parallel to the X or Y-axis can be drawn. The usual stride length for curve recorders of the type described is 0.25 mm (0.01 inches), although other stride lengths can be used. Line segments can also be at an angle of 45 ° to each of the basic directions can be drawn, as Figure 2 shows, by placing the paper and the pen at the same time with the same Speed can be moved. The step length of a line segment running below 45 is with a curve recorder with the standard length of 0.25 mm (0.01 2 inches) 0.359 mm (0.01414 inches). Combinations of these stride lengths are then used to approximate one as precisely as possible desired drawing.

Jü-Bichtlicherweiae serves the description above of the chart recorder 100 and its mode of operation only sur

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Explanation. The curved tube overhead TOO is compatible, though. hereby not part of the present invention. Details of its operation are known to those skilled in the art.

Figure 3 is a combined block and logic diagram a system according to the invention. Function and general purpose of a digital curve recorder 100 were explained in the previous section. It can be seen that the writing electronics 124 from FIG. 1 are in the block 300 from Figure 3 and therefore not listed individually. The task of the recorder electronics will be discussed later explained.

On the left in Figure 3 is block 300, which is a digital data storage device, preferably a magnetic tape playback unit, represents. As mentioned in the prior art section, using a such single-purpose magnetic tape player in "off-line" operation a cost increase that can only be partially offset by saved computer time. For this reason is used in the preferred embodiment of the present invention a multipurpose display unit is used, which enables a more favorable cost distribution. Such a multipurpose display unit can be used as an output device of a digital data processing system and receives its input data in the form of punched tape, magnetic tape, punched cards or directly from the computer exit channel. In addition, such Multi-purpose unit as input device for curve recorder, numeric

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see control units and other similar units used will. A preferred embodiment of this display unit can even be used to record data entered from a keypad and to transfer it to various output devices, and is used in particular to prepare input data recorded on magnetic tape by a digital Eeo> > ner should be supplied. Using such a versatile multi-purpose player will reduce the The amount of time the device is not in use, as it can be used to perform various tasks can. In addition, the general purpose display unit contains its own control and error sensing logic to accommodate others Cost savings. The unit described above is a commercially available device, e.g. Model No. 700 d-er Mohawk Data Sciences Corp. As shown in FIG. the control device 126. It should be mentioned here that αμΓοΙι connection of a step / analog converter (not shown) to the output of the control device 126 .an analog recorder with the system according to the invention described here can be operated. Other features and advantages of the present invention will emerge in the course of the following Description. ·

The very powerful new code arrangement, which is used and described here permits a very great deal. significant reduction, by a factor of 10 or more

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the number of binary characters used to produce a given curve drawing are required. Iiu compared to Attachments that have one or even three characters for each individual Need to draw step of the writer, the efficiency occurs the code arrangement described here is particularly clear. In Figures 4 (a), 4 (b) and 4 (c) are three examples illustrated by curve drawings drawn by a curve recorder by the inventive Control system was controlled and the coding described here used. The degree of difficulty or the complexity of the curve examples shown is comparable to the degree of difficulty actual tasks that are set in technology. For this reason, the shown Figures are described as meaningful and representative. the Curve examples consist of alphanumeric characters, long and short, broken and continuous, straight and angled lines. The conventional one used so far 3-character code required about 126,000 characters and additional synchronization information to describe the drawing. The conventional 1-character code required 42,000 characters and additional synchronization information to describe the drawing. The new code arrangement described here only needs 1230 characters. '■

In the novel code arrangement, a pair of binary characters that belong together is used to describe the direction • and length of a line to be drawn, with the commands

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"Up" and "Down", i.e. H. + Z and -Z for the pen, single commands are. Obviously, these latter movements only require one character each. The first binary character of the pair of characters preferably denotes the direction and the second binary character denotes the length, although the reverse is also possible Order could be used. The direction or write command includes the usual handwriting movements + X, + Y » -X, -Y, + Χ + Γ, + X-Y, -X + Y, -X-Y, as well as + Z and -Z or feather lift-off and touch down. In addition, supplementary write commands are provided, so that the writer can make those lines better can describe whose angle is not on the main axes. The supplement procedure is shown in Mgur 2, in which the usual write commands are shown by solid lines, while the associated possible supplementary commands are drawn in dashed lines. The supplementary commands will be explained in more detail later.

In addition to the usual write commands and the supplementary commands, the code arrangement contains certain control commands. As already mentioned, the binary characters are grouped into peares, which define the direction and total length of a line to be drawn. Since a line is a series of individual steps includes, it can be seen that the binary line following a special write command, i.e. the step command, only the total number of times to be performed by the recorder Individual steps defined. As shown in the following tables, the code arrangement JO contains binary oaks «, the

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a corresponding arithmetic number of steps between 1 and 30 inclusive. To "for example a To mark a line along the X-axis with a length of 6.9 mm (0.27 inch) only needs the one representing the + X direction Binary characters associated with the 27-step control command to will. Since the code arrangement is limited to a maximum of 64 characters, only 30 step commands were provided, as the rest Characters are required for further control commands. Obviously, however, the code can be extended to include Lengths of more than 30 segments are made possible. However, since the code arrangement is particularly suitable for magnetic tape with seven or 9 tracks is laid out and that at least one track, the seventh track, is reserved for the parity display a restriction to 30 segments is suitable. Lengths of more than 30 steps can be executed with a repeat command within the coding. A tabular Qhe Representation of various code commands and their associated Binary character is given in Table I *

As the name suggests, the repeat command causes the curve recorder to follow immediately binary pair of characters repeated. By customizing a step command to the repeat command, the instruction to repeat the immediately following pair of characters can itself be repeated several times. In this way, any write command of the coding can be repeated up to 900 times, obwobl only 4 binary characters or two binary character pairs

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be turned. That this saves computer time and tape length is obvious, especially in terms of Fact that approximately 2700 binary characters would have used must be in order according to a previously common Oodierungsverfahren to define or draw a corresponding line «

The supplementary write commands make it easier to draw lines that are not on one of the usual axes or main vectors. The eight main vectors are shown in FIG. 2 by solid lines (reference numbers 200-214}. The eight possible supplementary vectors, reference numbers 216-246, are shown in dashed lines in FIG. 2. Each supplementary command contains a corresponding binary symbol with which a step command is connected . the resulting Erganzungszeiohenpaar: _r causes after it has been decoded for the recorder that first läögs a line parallel to one of the eight is drawn principal directions 200 »2F4, namely less, indicating than the 'step command for exactly one step the last step or. The last line segment is then executed along one of the mutually perpendicular vector components that form an angle of + 45 ° or -45 ° with the drawing vector. For example, the supplementary command + X + Y 216 or + XY 218 added or supplemented to an original direction along the -X «Y axis 206 or along a The supplementary command -X 230 or -Y 228 would be added to parallels to this axis. Caused in both examples

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the supplementary command that only one line segment is exclusive is drawn in the specified direction in addition to the original human segment (or segments) will be added. The total length of the original line is determined by the step command, and by one segment shorter than the specified number of steps. It is interesting to note that there is no need for an addition in other directions than in the two dashed lines drawn right-angled vector components of the original line segment.

With regard to the remaining write commands, a repeat command and a step command can be used with the supplementary command pair can be coupled, which allows a long line to be drawn that only requires four characters are. So it is not possible to have long lines with so far Draw feasible slopes using only a minimally small number of binary characters.

There is also a binary character in the code arrangement which indicates that all following this symbol Information represents a block address in which certain information is stored that is not necessary for the Chart recorder needs to be of concern. Are binary characters also provided for a start command and a stop command, the latter also serving as a back-up command. A Fill command to fill in empty spaces on the magnetic tape or another storage device and a readerveommand,

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in its place any control command can be set, which may only be determined later, complete the special code arrangement shown here. It should be mentioned that a track or channel of the code arrangement, referred to as the B-channel, as a rapid display device is used to indicate that any binary character equivalent to a "1" or "Up" is to be used as a step command. Obviously, many modifications can be made within the scope of the invention the code arrangement described here. Therefore the tabular representation of the "r Code arrangement serve only to explain the versatility and possibilities of the present invention.

It should also be mentioned that the binary characters or bit patterns were chosen so that they correspond to the character algorithm correspond to the bit patterns already used in the computer. This will reduce the programming time and memory locations saved, which can serve other purposes. Furthermore, practically any desired or suitable arrangement of Bi t-iiu stars, can be used in the present code arrangement, although the arrangement shown here is preferred. Finally, it should be mentioned that the novel code arrangement described here used in conjunction with a 7-track format although the arrangement is not limited to it. The code arrangement works just as efficiently with a 9-track format, with little or no changes to be made.

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TABLES I. Command type Binary characters Command identification To write OOOOO1 . '■ + ¥:' ■. To write 000010 + Y addition + X + Y To write 000011 • + Y + X addition + Y To write 000100 + Y + X To write 000101 + Y + X addition + X- To write 000110 + X addition + X + Y To write 000111 + X To write 001000 + X addition + X-Y To write 001001 + X-Y addition + X To write 001010 + X-Y To write 001011 + X-Y addition -Y To write 001100 -Y addition + X ~ Y. To write 001101 -Y To write 001110 -Y addition -X-Y To write 001111 -X-Y addition -Y To write 01OQQO. -X-Y To write οιοοαι -X-Y supplement -X To write 010Ö1; 0 -X addition -X-Y To write 010011 -X. . . ■ - _; " To write 01010.0 -X addition -X + Y To write 010101 -X + Y supplement -X To write 010110 -x + Y. , To write 010111 -X + Y addition + Y Discs 011000 + Y Ep addition -X + Y • ORIGINAL BATHROOM

Binary characters Command identification Command type 011001 Spring "open" (-Z) steering 011010 Spring "down" (+ Z) steering 011011 Block address steering 011100 Write start steering 011101 repetition command 011110 reserve - - - 011111
100,000
100001 Write stop & return
st eil
0 steps or fill
command
1st step command
Step command
Step command 100010 2 steps Step command 100011 3 steps 'Step command 100100 4 steps Step command 100101 5 steps Step command 100110 j β steps \ Step command loom: , 7 steps Step command 101000 8 steps Step command 101001 9 steps Step command 101010 10 steps Step command 101011 11 steps Step command 101100 12 steps Step command 1Q1101 13 steps Step command 101110 14 steps Step command 101111 15 steps Step command 110000 16 steps Step command 110001 17 steps Step command ■ ΑΑΛΑΑ4 Mrtrtl BATH ORIGINAL

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Binary characters Command identification Command type 110010 18 steps Step command 110011 19 steps Step command 110100 20 steps Step command 110101 21 steps Step command 110110 22 steps Step command 110111 23 steps Step command 111000 24 steps Step command 111001 25 steps Step command 111010 26 steps Step command 1 lion 27 steps Step command 111100 28 steps Step command 111101 29 steps Step command 111110 30 steps Step command

The Code-I-ormat except in batch processing in "on-line" mode also ~ "for example in batch processing in" off-line "mode, in batch remote processing and. in time division multiplex work. In addition, add and repeat commands can be used in connection: to be used with Abtantperät, For example, method tubes that have a graphical Deliver and display reproductions,

Y / ie already mentioned, the one described here works Plant -; -; ur control of curve recorders and the like in connection with a magnetic tape playback unit 300.

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The tape unit 300 is intended to be provided with a tape reel (not shown) encoded in accordance with the present invention. As shown in Figure 3, the tape unit 300 is through a cable 301, which contains lines 303-308, is connected to distribution logic 302. In the preferred embodiment, a ? -Track tape is used, with one track or channel, channel 0, used for parity. The relationship between the remaining channels., shown in Figure 5, and the lines 303-308 is shown in Table II.

TABLE II Channel- Line Id entification Reference number Channel 1 303 Channel 2 304 Channel 4 305 Channel 8 306 Channel A. 307 Channel B 308

The preferred tape device for use in this system and most equivalent devices contains a core memory (not shown) with a capacity between 80 and 100 binary characters, depending on the playback unit used in each case. The bundle unit 300 has a core tape storage capacity of 80 characters, however

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any other storage capacity is also possible. In addition-. follow has every data block in the preferred embodiment a length of 80 characters. When placing a tape reel before the first data block must be in the core memory with the drawing Can be entered manually in order to delete any existing data from previous operations. However, there is also the possibility to automatically enter the first data block, if so desired. This feature is B form in the preferred embodiment not specifically provided, but can be conveniently installed at additional cost. It should be mentioned that a parity check of the data is carried out when each data block is entered into the core memory. if an error occurs, the tape is rewound and then again had read. If the error occurs again, the Belt unit is switched off and provides the operator with an error indication. Details of this part of the tape reading process do not form part of the present invention and are used here only listed for the sake of completeness.

Assume that the tape unit's memory 300 now the first data block recorded on the tape contains. So that the curve writer is now ready, the distant The block address number of the first data block to be drawn is entered in the start block switch 3ΙΌ entered. The block address of the last one to be drawn Data block is entered into the stop blocker 312. If only a single data block is to be drawn, '

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its address is entered in both block address switches. If a full band is to be drawn, · will either the last block address on the tape or 999 entered into the stop block switch 312. Both switch sets 310 and 312 are preferably a control unit they are each connected to an Mxie mooring display 311 and 313, the entered block address of the operator visually Show. If desired, other Sehaltums Siclitan- · Pointing devices are used.

The control device 126 has two modes of operation, namely search mode and write mode. When the start and stop block switches 310 and 312 are suitably set, the search mode is initiated by actuating the search switch 314. In the search mode, the core memory of the tape unit is scanned at high speed until the ^{1 start} block address set in the start block switch 310 is found start automatically at this point if the write switch 315 had been switched at the same time as the suoh switch 314. If this is not the pail, the write operation begins after the end of the search operation ₉ as soon as the write switch 315 is closed after the start data block has been found.

The sequence of operation in Suohbetrieb is as follows: When the search switch 314 is pressed, it begins

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the dispatcher logic 302 interrogating the tape reader 300. At the same time, the instruction decoding logic 318 in the for the Search mode is set. As Table I shows, a special binary character is provided which is a block address code or control command. This special binary character informs command decoding logic 318 that immediately this is followed by a block address. As FIG. 5 shows, each block address code is followed by three binary characters for the One, ten and one digits of the block address Write command and the step commands can differentiate, transmits the Bloekaäressencode over lines 303a-307a to the Instruction Decode Logic 318.

• From table I it can be seen that only the binary characters representing a step command have a "1" in the associated B-channel. The binary characters for write and control commands have aeee ^ to a "0" in the associated B-channel. The Distributor LogiÄ uses this difference by providing all writing. and control commands via lines 3O3a-3O7a to the command decoding logic and all step commands via lines 3O3b-3O7b βη the step counter register 324.

If the command decoding logic 318 the block address cpde eiiii-fän.t, line 319 is set accordingly so that communicated to the block address search and comparison logic 320 is that immediately afterwards a block address follows. the binary digits that place the ones, tens and hundreds

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represent the block address occurring on lines 303c-306a, become the block address search and comparison logic 320 supplied. In addition, this logic receives the address of the start block for the drawing to be produced via line 321 and communicated via line 322 the address of the last block. Then the start block address is · the one just searched for Block address compared. -If the block address searched is lower than the start block address, the Y / switching line is switched 323 is set so that the terminal device control logic 330 requests further binary characters from the core memory The process repeats itself until the ötsrt block address is found, whereupon the block address search and comparison logic 320 notifies the instruction decoding logic 318 via the search end line 316, that the search operation has ended. This switches off the search mode and the command decoding logic 318 to write mode switched.

The tape device control logic 330 controls the flow of information to the system. At the beginning of the search operation, a signal is applied to the tape recorder control logic 330 via line 336, so that this control logic provides a signal on line 340 to the core memory of the tape unit. This becomes a Output binary characters from core memory. The command decoding logic 318 notifies tape recorder control logic 330 over lines 3-6 that a received command has been decoded and that the controller 126 for the next · binary character ready. The next binary character is taken from memory

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output, the tape unit transmits a corresponding signal Line 339 to the tape device control logic 330 and divides this with that the requested binary character from memory has been issued. When the memory has output all stored binary characters, a corresponding Circuit in the tape unit 300 automatically reloaded. Meanwhile, the tape device control logic 330 is disabled via line 341, so that the aforementioned parity comparison can be carried out. If no error is found, the locking signal is removed. However, the locking signal is still present if an error is sensed. The block address search and compare logic 320 divides the tape device ' Control logic 330 via line 323 with that the starting block address has not yet been found. Therefore, further binary characters, 'are sequentially generated in accordance with corresponding signals on line 323 output from memory until the. by the operator set start block address is matched. The control "- direction 126 is now ready, the curve marker for the Turn on and control operation. -. ,,

bie control device 126 is now in the write operation and the Befehlsdeoodierlogik 318 starts in accordance with the drawing, if the write switch 315 is switched simultaneously with the search switch 314, or when exerts write switch 315 after locating the Startblookadresse is turned on. In any case, a write start signal is sent via line 407 to the bistable flip-flop circuit 342 '

i ■ "■ ■

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given, according to your binary character for start of writing, that follows the block address, as Figure 5 shows. Through this a change of state of the is on the output line 343 Flip-flop 342 caused line 415, an input of gate 348 and write clock timing and registers 326 can be set appropriately.

After the write start command there is either a write command or a repeat command on the tape. The example shown in FIG. 5 brings a write command after the write start command} the following explanation relates to this example. First, the repeat command Iturz will be explained. The write command is applied by the distributor logic 302 via lines 303a-307a to the command decoding logic 318 * There the command is decoded, and the associated output lines 400-408 of the command decoding logic 318 receive a signal that represents the receipt of the command. During the coding process, an upward command or + Z _{1 is selected} as the first command. This ensures that the "starting point" for the drawing to be produced is reached without the pen leaving an undesired mark on the recording paper 104. Line 404 therefore reproduces the pen-up command a signal is provided indicating that the command has been received and coded by the command decoding logic

BATH ORIGINAL 009882/2004

203153?

Issued every time a command is actually received and has been decoded. This particular step within the decoding operation is omitted in the following description each time separately listed, although it should be emphasized again because £ a signal is sent after each command decoding.

When the spring-up signal is on line 404 is present, it is both an input of gate 372 and an input of the clock timing circuit 332 for up / down movement of the Fed spring. This circuit, which allows the spring to move rapidly up or down regardless of the speed of the controller logic, locks you in further write operation by sending a lock signal via line 353 to the terminal device control logic 330 and to the write clock control device and register 326 outputs. In this way the spring can be moved rapidly while the remaining sections of the Control device 126 is kept at rest. A similar process occurs when the Feder-Down-Beiehl -Z is received is, in which case line 405 is the corresponding signal surpasses.

Hach lifting of the spring 106, which is prescribed in the Progrsinmcode is, as often as not to be drawn, the -. corresponding write command received from the command decoding logic, indicating a movement of the paper 104 and / or a lateral Movement of the spring 106 causes the spring 106 to become the starting coordinates for the drawing to be produced is led. This write command has the effect that the '

009882/2004

Command decoding logic on their output lines. 40Ο-4Ί-2 a - suitable Signal supplies .. For the further description it is assumed that the write command is the binary character for + X, + Yv and that the starting point for the drawing is 1.5 steps from -, is removed from the point t. at which the spring 106 was originally found. The Fede.r up command is therefore followed by a binary • pair of characters, the first character of which is the count or number of Steps and the second character of which indicates the direction. The controller 126 responds to this as follows Pair of characters. The step command is via lines 303b-307b. to the step count register 324, where the signal .so long until it is deleted by the next step command will. After the signal has set the register, it is sent via lines 3Ο3ΐ> -3Ο7ΐ3 to the write clock control device and register 326. When this register received the step command there is an appropriate signal on gate 348 on line 416 which signals a write clock timer on line 352 350 supplies, which turns this clock timer on. The write or direction command that targets the Step command follows has meanwhile been passed to command decode logic 318, which is on its output lines 400 and 402 represent the write command + X, + Y. The counting of the write clock timer begins practically at the same time 350, which emits pulses at a certain regular interval. The output pulses of the write clock timer 350 are transmitted over lines 351 and 414 to X gate 360, Y gate 361, gate 372,

009882/2004

Gate 374 and to the retry and count register 328 applied. When the clock time inputs of gates 372 and 374 are set by the clock time pulses, one of these gates is switched depending on the presence or absence of a signal on lines 404 and 405. In this pail, gate 372 is switched because it is on line 404 a signal is present which represents the previously issued 3? eder * upward command. One input of gates 364, 366, 36 & and 370 is set by the outputs of the X-gate 360, and Y-gate 361, which are always turned on in the write operation unless a l _r gänzungsschreibbefehl is decoded, as will be explained in more detail. The gates 364 and 368, the inputs of which are now switched on, forward the command + X, + Y to the curve recorder 100. The recorder electronics 124 switch the corresponding stepping motors, which move the spring in the indicated direction. The pulses supplied to the write clock control device and register 326 by the clock timer 350 cause the register to count down one unit or one step for each received clock pulse. When the R register 326 reaches zero in the last step, it turns off the signal on line 416, thereby switching gate 348 and turning off the write clock timer 350. Register 326 also supplies a last step signal on lines 333 and 413 simultaneously with the receipt of the last clock pulse. Finally, an end-of-step signal is output via line 354, which causes the tape device control logic 330

009882/2004 .bad .original " ¹ '

again queries the core memory. For the above example, the clock timer 350 is turned off after 15 steps in the + x, + y direction. This process can be done with feather-up or
Pen-down signals are repeated in each possible drawing direction for any necessary number of steps.

If the special write command for a length "of, for example, 150 steps instead of the 15 steps mentioned above
would be required, the repeat command would be used, since the code format only allows for a maximum of 30 steps. In such a case, the controller 126 operates as follows. The retry command is issued by dispatching logic 302
received and lines 3O3a-3O? a forwarded to instruction decoding logic 318. The reception just that special one
Command causes a signal on line 406 from the
Command decoding logic 318 to the switching clock control device and
Eegister 326 and to the repeat control and counting register 328 is output. This repeat signal disables the write clock register 326 and opens the repeat register 328 so that it counts the repeat count immediately following. Be it
reminds that the repeat command is followed by a step or repeat count indicating how often a write command and its associated step command should be repeated. Obviously, 150 steps can be specified in various ways, however, with regard to the previous example, a step command of 15 and a repeat command of should be selected. Hence it follows immediately after the binary sign

009862 / 20OA " _{BAD ommmi}

for repeat command 'a command for 30 steps .. This 30-step command is first entered in the -Verittcounting register 324, as mentioned, and then to the write location register 326 is passed on, where the repeat signal locks the register and opens the repeat register 328, with it it accepts the 30 ~ step binary character. Bach receiving the The command decoding logic 318 is set by the following write command line 418 back enables write clock register 326 and switches the access from this register to the repeat register 328 from. As already mentioned, this write command sets as well as the corresponding output line of the instruction decoding lo £ 'lk 318, in this pail the lines 400 and 402. The immediately following binary characters will be for 15 steps to step count register 324 and then to the write clock register 326 headed. Since the Eegister 326 is not blocked via line 418, it switches the write clock timer that the associated write gate switches, i.e. gates 364 and 368, dcmit can be drawn. At the last of the 15 step commands the last step signal is sent via line 333 to the Repeat register 328 submitted. This creates the register 328 counted down by one step; in addition, this signal is applied to the step count register 324, which the ■ contains ^ -step count until it is reloaded, then register 326 again with the 15 step count is loaded. This will do the -15 steps or the line piece-la the + X, + Y direction 30-rnal repeated,

009 882/20 0 4 bad original

■ · ■■■ '203153?

so that a total of 150 steps are performed in the indicated direction * It should be noted that the write direction signals are present on lines 400-405 of the command decoding logic 318 until the next write command, Will be received. In this way the repeat command can be: beouem because the write command in the specified Number should be repeated, even does not need to be repeated after entering the control device at the beginning 126 was entered.

The clock timer 350 of known design is adjustable, so that the intervals between the output pulses can be increased or decreased. This attribute is particularly in the case of a repeat command from Mutzen where relatively long lines are drawn in one direction. By pressing an accelerator switch (not shown) on the control panel of the control device 126, line 417 is automatically set so that it is during the " Retry command periods accelerates clock timer 350, which increases the writing speed. The tect time speed at the end of the repetition period is correspondingly slowed down again. If desired, it is also possible to set the cycle speed manually via the conference line 417 to set. ■ "- ■■"

When a supplementary write command from the decoding logic 318 is scanned, all steps with the exception of the last step, those coupled with this instruction

BAD ORtGfWAL

009882/2004

Step counting as previously carried out, - only that 'one of the lines 409-412 is switched according to your supplement from ef ehl and thereby controls X-gate 360 and Y-gate 361. Thereby, the switches E _r gänzungssteuerlogik 344 the XG atter 360 or Y-gates 361 for all steps except the last step in. For example, a + X + Y write command should be linked to a 15-step count, as in the previous example, only that in this case the + X + Y command is a supplementary command. Also assume that + X is the last step added to the + X + Y instruction. The output lines 400 and 402 are again switched on so that they set the inputs of the gates 364 and 368 accordingly. In the first 14 steps, the X and Y gates 360 and 361 are also suitably set so that the gates 364 and 368 are turned on and allow signals to the chart recorder 100 to pass. In the 15th or last step, the supplementary control logic 344 excludes the Y gate 361 in accordance with the last step signal received on line 413, whereby gate 368 is also switched off, and only + X remains for the last step. If desired, the supplementary write command and its associated step counting command can be coupled with a repeat and counting instruction pair so that the supplementary command can be repeated several times without the supplementary command itself having to be repeated each time. For a better understanding of the supplementary procedure, another example is given. This time a -X command is to be drawn for 15 steps

009882 / 20OA

where a -X + Y command should be added as the last step. Again, the control device 126 operates in the first 14 steps in the manner described. In this case, the lines 401 and 402 of the ^{Befehlsdeco-:} switched decode logic suitable. During the first 14 steps, however, only the X gate 360 is held open by the supplement control logic 344, so that only + X is drawn during this period. At the fifteenth or last step, the addition control logic 344 switches on the YG atter 361 in accordance with the last step signal on line 433 which was output by the write clock register 326. As a result, gate 368 is switched on in addition to gate 364 already switched on for the last drawing step. Again, as in the other example for supplementary operation, this command itself can be repeated as desired. ■

In general, the make-up write is accomplished by having all of the outputs 400-403 of the command control logic for the entire count according to the original Direction of writing and kept according to the added steps and that then the X and Y gates 360 and 361 via the Lines 409-412 can be switched on or off as required. So in the first example there were the lines 400 and 402 switched on for 15 steps, the X-gate 360 was also switched on for 15 steps during the Y gate 361 was only on for 14 steps. In the second Example were lines 401 and 402 for the whole

BATH ORIGINAL

009882/2004

2031531

Payment of 15 steps switched on, XG-atter -360 was also switched on for total count ¹ , while YG-atter 361 was only switched on for the last counting step where it was needed. Obviously, the output lines 40C-403 and the X and Y gates 360 and 361 can swap their halls. However, it has been shown that the described Io £ ii.i.anorc: nung is more economical. Both logic systems deliver satisfactory results

“Ie Pi ^ ur 3 (to) shows there are a number of Buffer amplifiers 365, 367, 369 »371, 373" and 375 between the associated write gates 364, 366, 368, 370, 372 and 374 and the liurve recorder 100. They are used to record the from The signal level received by the remote control rooms is reduced to a level lift, because «meets the requirements of the ICurve recorder. Its reinforcement function, if any, is therefore direct depends on the type of curve recorder used.

The BlockadTesBen codes cause as often as they occur that the command decoding logic enters the immediately following block address in the block address search and input comparison logic 320. These blockade meals are continuously compared with the stop block address on line 322. With every such Address comparison is made by the write clock timer '35O an appropriate signal on line 323 that appears on the write tab register 326 is present, blocked. If the stop block address or the last block on the tape has been reached, namely

009 88 2/2004 bad original

in the event that 9-99 was entered as the stop block at the beginning has been, a final Bl o-ek signal is over line 316 delivered to instruction decoding logic 318. As a result, a signal is sent to the Flijflop 342 via the write stop line 406 output, causing the flip-flop to switch and gate 348 to switch off. This will stop any writing ■ crawled if for some reason it is still running. Simultaneously a stop signal is sent via line 336 to the tape recorder control logic 3'30 delivered, whereby the query of the core memory, is interrupted-. The terminal device control logic locks also by a signal on line 333 the distribution logic 302. In the opposite case, "the divider logic is over line 338 released as soon as the control device 125 is switched to search or write mode again.

While particular embodiments of the invention have been shown and described above, those skilled in the art will recognize that various changes and modifications can be made within the scope of the invention.

BATH ORIGiMAL

009882/2004

Claims (12)

Monks, the 2 JJ ÜUIÜ-1870 - Your sign Unier sign BAUSCH & L0i £ 8 DTOOEPOHAiDED Rochester, Hew York _B .. _i St. Paul Street 635 203 I. , V. St. A.. '. ■■ · ■. ... '■ Patent application control system and coding process for curve recorders and similar devices * PATENT CLAIMS / I * - method for coding and arranging digital Characters ", creating a graphical representation of a curve recorder in "on-line" or "off-line" mode is indicated by (a) Powder assignment of a specific "digital character" Write command, where each write command corresponds to a specific direction in which to draw; (b) Assignment of a further digital character to each step command, whereby each step command corresponds to a specified number of steps \ (o) Coupling one of the digital characters that represents a write command -., with one of the digital characters representing a step command, whereby a digital 009882/2004 Patent Attorneys DipL-Infl, Martin Licht, Dip (.- Wirt $ ch, -Ing. Axel Hanimann, Dipl.-Phyi. Sebaitian Herrmann, I MDNCHEN 1, THIHtIIENITHASSi 33 · Telephone 1211202 · Telegram-Adreiiej Upolll / MOnchinley «. Vefilmbaiik Monch ", Zw * lcjit. Oiker-vmfMlller-Rlng, account no. 882 <W Poitichtek-Accounti Munich No. ίί3ί 97 Oroi MTiNTANWAiT 0 ». REINHOLD ICHMIDT BATH ORIGINAL Creating a pair of commands defining a line of specified direction and length; (d) Associate a further digital token with each Supplementary order, each supplementary order consisting of a Single step, that of a line from a series is added by single steps all performed in * the same direction, each of these Additional individual steps in any of the possible writing directions, but not in the previous one Writing direction of the line and not in those writing directions can be executed, which with the previous writing direction an angle of more than + 90 ° and less form as -90 °; . (e) coupling any of the digital characters representing a: supplement command with one of the digital characters; Characters _t that represent a solitaire command, with ¹ Aus--; would take that digital character which represents a section of unit length T, whereby a digital supplementary instruction pair is created which defines a line with a generally-determined direction and length} -. (f) Assigning a further digital character to each control command, whereby each control command represents a certain capability of the device that produces the graphic representation and ' (g) Arrangement of the digital write command pairs, the - _Λ "BAD ORIGINAL 0Ü9882 / 20CU digital ilpgänzungsbef ehlspaare and digital characters ö s control commands correspond to depend on the type of the drawn graph, and on the type of apparatus used, thereby producing .to "the .graphische representation. 2. The method according to claim 1, characterized by before de,: i arrangement step additional step performed (e) Assigning a digital character to a repetition . command; (b) coupling the digital character representing the repeater to one of the digital characters representing a Represent step command, whereby a digital repeat command spasr is created that defines a repeat command and the number of repeats; and (c) Rearranging the digital auxiliary pairs in such a way that, if necessary, a digital repeat instruction pair is matched _{to one or more digital i> e mispairs.} if the digital command pairs so adapted so to be repeated many times as the number of steps in the digital repeat command save *. 3. Method of coding and arranging digital Characters, v / o by a graphical representation of a chart recorder is made possible in "on-line" or "off-line" operation, characterized by: 009 882/20 04 ORIGINAL BATHROOM. · (a) Associate a particular digital character with each Write command, with each write command of a specific Lease that can be subscribed to; (b) Assigning Another Digital Token To Each Step command, each step command being a specified Number of steps corresponds to; (c) Coupling one of the digital characters to a write command represents, with one of the digital characters representing a step command, whereby a digital Command pair is created, the one'line with specified Direction and length defined. (d) assigning a digital character to a repeat command; (e) Coupling the digital character containing the repeat command represents, with one of the digital characters representing a step command, creating a digital repeat command pair is created, daa a repeat command and the number of repetitions defined. 4. Method for encoding and arranging digital characters, whereby a graphic representation of a curve recorder in the "on-line" or "off-line" operation is enabled, 'marked by! (a) Assigning a particular digital character out of six Bit length for each write command, with each write command corresponds to one of the directions + X, -X, + Y, -Y, + X + Y, + X-Y, -X + Y and -X-Y} 009 882/20 04 / bad original ' (b) Assign one more digital character out of six Bit length for each step command, with each step command corresponds to a specified number of steps; (c) Coupling one of the digital characters that represents a write command with one of the digital characters that represents a step command, creating a digital command pair that includes a line with a specified Direction and length defined} - (d) Assigning a further digital character of six bits in length to each supplementary command, each supplementary command consisting of a single step added to a line of a none of single steps which were all executed in the same direction, each of these supplementary steps being in any of the possible writing directions, but not in the previous writing direction of the line and not in those writing directions which form an angle of more than + 90 ° and less than -90 ° with the previous writing direction; ■■■ - ■■ - ^ r '■' - (e) coupling of some of digital characters representing a Ergänzungabefehl, with a digital · characters that constitute a step command, with the exception of that digital sign representing a step of Einheitalänge 1, whereby a digital E _r gänzungsbefehlspaar created that defines a line with a generally specified direction and length; 009882/20 (f) Assigning one more digital character out of six Bit length for each control command, with each control command represents a particular capability of the device producing the graph; and (g) placing the digital Schreibbefehlapaare, the digital I _r gänzungsbefehlspaare and digital characters corresponding to the control commands which depend on the type of the drawn graph, and on the type of device used, to thereby generate the graphical representation. 5. The method according to claim 4, characterized by Additional steps taken before the arranging step: (a) assigning a digital character six bits long; to a repeat command; ■ (b) coupling the digital character representing the repeat command, with one of the digital characters representing a step command, creating a digital repeat command pair is created, "that-a repeat command and the number of repetitions .definedj and (c) Rearranging the digital instruction pairs so that, if necessary, a digital repeat instruction pair is received one or more digital command pairs is adapted, if the digital command pairs so adapted so should be repeated many times, as indicated by the number of steps in the digital repeat command pair. BAD .ORIGINAL 009 882/20 04 6. The method according to claim 5 »characterized by the-additional '. Step that one of the bits is encoded in such a way. ' da.U it indicates οία a digital character a write command, a. Should represent a supplementary command or a step command. 7 · 'method of coding and arranging digital Character, whereby a graphical representation of a curve screech oers in "on-line" - or "off-line" operation possible is indicated by (e) Assigning a specific digital character of six bit length to each write command, with each write command in one of the directions + X, -X-, "+ Y, -Y, + X + Y, + XY, -X + Y, -XY corresponds to -, (b) Assign one more digital character out of six Bit length for each step command, with each step Lb.fault corresponds to a specified number of steps; (c) Coupling of one of the digital characters, the one writing area represents, with -ei-iieiu the digital character that represents a step command, creating a digital Command r; p tar is created, which is a line with fixed : laid lease and length defined; (d) Assign a digital character six bits long to a repeat command; '- (e) Koxjpeln the digital 'character, which the repeat command represents, with one of the digital characters that represent a Represent step command, whereby a digital repetition 009882/20 OA BAD ORIGINAL ' fetch command pair is created that has a repeat command and defines the number of repetitions; (f) Assigning one more digital character out of six Bit length for each control command, with each control command representing a specific capability of the device that controls the graphic representation generated; . (g) Adapting a digital Y / repeat instruction pair according to Request for one or more digital write command pairs, so that the digital write command pairs adapted in this way be repeated as often as the number " indicating steps in the digital repeat instruction pair; (h) arranging the digital write command pairs, the digital supplementary command pairs and the digital characters, which correspond to the control commands that depend on the type of graphic representation drawn and on the type of used device to thereby the graphic Generate representation. 8. The method according to claim 7, characterized by the additional step that one of the bits is coded so that it indicates whether a digital character is to represent a write command, a supplementary command or a step command. 9. Device for controlling a curve recorder, characterized by « . ' ■ --- ■■: ■■■ ; ■■■■: _ ■? \. ".. .. '...:. BAD ORIGINAL ' 009882/2004 (a) Llagnetband playing unit (3OQ) with a magnetic tape * which is coded with digital control characters, digital writing characters and digital step characters, the _{v in} total. Represent information for a drawing to be produced or for parts of the drawing, the information being arranged on the bend in a "specific sequence of data blocks and an associated digital data block symbol being recorded on the tape in front of each data block;" (b) First circuit device (126) to incrementally to enter electrical signals corresponding to the digital characters into the control unit} (c) zY / eite circuit device (320), which is based on the electrical Signals' and identifies the block address and in particular identified a certain special block address which is predetermined in the second circuit device (310, 312)} (d) third circuit device (302) based on the electrical Responds to signals and differentiate between these signals can and then such signals that the digital Control characters and the digital characters without _r »separates from those signals which correspond to the digital characters} (e) fourth circuit device (318) which is responsive to such signals, which correspond to the digital control characters and letters, in order to decode the signals and "u '■ '! "; *' ... 00988 2/20 04 * bad original (f) fifth circuit device (124, '35O) applied to each responds to digital characters decoded by the fourth circuit device and with the curve recorder (100) is connected in order to have it ready so that the curve recorder in the decoded digital Can draw characters in the specified direction; (g) sixth circuit device (324, 326.}; which is connected to the fifth circuit device and is responsive to those signals which correspond to the digital step characters, in order to generate a sequence of pulses of equal spacing, the number of which corresponds to the number of steps, indicated by the scanned digital step character, the pulses switching on the fifth circuit device for each generated pulse, so that the plotter draws in the direction indicated by the decoded digital writing character, for that number of steps indicated by the digital entry mark _{s j>} (h) seventh circuit device (348) »which is based on the last, ' pulse generated by the sixth circuit device " responds to prevent the generation of further pulses, when this last pulse is sampled} and. ; (i) eighth locking device (330), which responds to the signals corresponding to the digital control characters \ and with the first, second, third, fifth and. aechste circuit device is connected * to a BAD ORIGINAL ^ 009882/2004 Qthe several of these first, second, third, fifth and turn on or off sixth viewing devices in accordance with the decoded digital control signal, 10. Apparatus according to claim 9, characterized in that some of the digital writing characters draw digital supplementary characters can represent ',?; obei for each supplementary character a corresponding digital step character is provided and where the fourth decoding device (318) after decoding and Separating those signals that correspond to digital control characters and writing characters, further separating the signals corresponding to the digital supplementary characters; where the Device also contains a ninth circuit device (34-4), those with the fourth, fifth and sixth circuitry device is connected and responds to the supplementary signals and to the last pulse of the pulse train to selectively the fifth Switch on switching device (124) when the last pulse occurs that corresponds to the digital step symbol that is assigned to the dea decoded supplementary signal, whereby the The curve recorder only draws for the last of the steps indicated by the digital step symbol in the direction which indicates the decoded digital supplement? eichen. 11. Apparatus according to claim 9, characterized in that some of the digital control characters can represent digital repeat characters, for each of these repeat characters 009 882/20 04 ORIGINAL BATHROOM STi an associated digital step sign is provided and wherein the fourth circuit device (ji8) after decoding and separating those signals which correspond to the digital control characters and writing characters, furthermore the signals corresponding to the digital repeat characters, separates j wherein the device furthermore contains a ninth circuit device (328) which is connected to the fourth circuit device (318) and the sixth circuit device (324, 326) is connected and to the decoded repeat signals and to the last pulse of the pulse train responds to cause dai, - the sixth circuit device repeats the sequence of equally spaced pulses when this last pulse is sampled, wherein the number of pulse train repetitions corresponds to the number of steps indicated by the digital step symbol associated with the digital repeat character. 12. Apparatus according to claim 9, characterized in that some of the digital writing characters are digital supplementary characters can represent, with an associated digital step character is provided and that some of the digital control characters represent digital repeat characters can, vi / obei an associated one for each repetition character digital step symbol is provided and wherein the fourth circuit device (318) after decoding and antennae of those signals that contain the digital control characters and writing characters continue to match the digital 00988 2/20 0 4 ORIGINAL BATHROOM 2031 signals corresponding to characters and digital repeat characters, separates, · wherein the device furthermore the following switching devices contains: (A) ninth holding device (344), which is connected to the fourth, fifth and sixth circuit device is connected and on the additional signals' and on the last PuIa responsive to the pulse train to selectively turn on the fifth circuit device (124) when the last Pulse occurs which corresponds to the digital step symbol associated with the decoded supplementary signal, so that the curve tracker is only used for the last of those indicated by the digital step mark Draws steps in the direction indicating the decoded digital supplement} and (b) tenth circuit device (328) associated with the fourth Switching device (318) and the sixth switching device (324, 326) is connected and on the decode repeating aials and on, the last pulse of the “Pulse | sequence responds to cause the sixth The device repeats the sequence of pulses of the same ab- ■■ / '-' ^f ■ stanids when this last pulse is sampled; the number of pulse train recolonies corresponds to the number of steps indicated by the digital step number * that is the digital repetition time - '. ty ", -, '■■' - '■''' ^: ". - ■ · , -V-. ''', Chei ^ säubesrdtttf eats. BATH ORIGINAL 0098.82 / '20OA' Blank page