DE2510713C3 - Teaching system for group training in typing - Google Patents

Description

The invention relates to a teaching system for group training in typing with a Arrangement for creating and playing back teaching programs with selectable character sequence frequencies, consisting of an electrical input keyboard and a character board with illuminated key images in a keyboard arrangement, as well as with an electronic circuit arrangement for connecting the Input keyboard and / or character board on a magnetic tape recorder

In a known teaching device for typing lessons, which has a symbol display of the typewriter keypad having tableau and with a teaching program input device is provided, the individual key symbols on the panel are assigned optical display elements that are in control connection with the teaching program input device for the purpose of individual actuation according to a sequence of exercises. There is the Control connection between the teaching program input device and the display elements in the panel a code transmission device which contains a decoding matrix for the key symbol and symbol display elements by means of a contact touch panel the key symbol display organs belonging to the teaching program can be operated, with the It is also possible to play back a program stored on a magnetic tape using a magnetic tape recorder.

As is known, however, great importance is attached to such writing exercises that a given The writing rhythm is precisely adhered to, d. i.e. that the The time intervals between the individual keystrokes are as equal as possible. In addition, at such a teaching system also be given the opportunity as the level of training progresses of the individual students or groups of students to accelerate the S writing rhythm and thus the To increase the writing speed or the clock frequency of writing.

This possibility is not given with this known teaching device, since the playback clock frequency,

ίο if one is spoken of at all can, always depending on the input or recording frequency

In another known system for teaching machine writing (DE-OS 21 34 570) is a Central unit and a number of workstations according to the number of students provided, each Workstation contains a desk with a keyboard machine and a student unit and each student unit has one Facility to display the to be written Has letters from the central processing unit is controlled to specify the letters at a variable speed. The central unit is with an input keyboard, with a punched tape reader, a code converter, a timer and a Tape recorder equipped. It also has a switching mechanism with which either the tape reader or the tape recorder can be connected. The tape recorder only serves to transmit stored synchronization pulses to the control tion dos tape reader or for playing music or comments. There is indeed the possibility here of running the tape reader at different speeds and so with the Playback of a stored on a punched tape Teaching program different string frequencies to achieve. When the characters entered with the keyboard are played back directly, however, a constant or even selectable character sequence frequency is not possible to be observed because the necessary devices are not provided. After all, there is already a Methods for digitally controlling illuminated panels for programmed instruction have been proposed (DE-OS 23 64 710), in which compliance by means of an electronic buffer and timing elements a certain character sequence frequency when playing recorded or directly entered teaching programs is possible. Varying the playback character string frequency, however, leaves this device not to.

The invention is based on the object of providing a teaching system of the type mentioned at the outset improve that teaching program creation and teaching program playback in several ways is made easier and more variable, in particular in which regardless of the respectively observed Input clock frequency, both the immediate playback and the playback of a stored teaching program with freely selectable and precise observed clock frequencies can take place.

The invention is characterized in that for Control of the data flow from the input keyboard to the tape recorder and / or to the character board or from the magnetic tape recorder to the character board an electronic, addressable read-write memory is provided in which the characters and function commands of one or more teaching programs coded in a manner known per se in the multiplex method and from which they can be written by means of a

function decoder that can be influenced by function program keys, the one trigger on the read-write memory and at the same time individually or in parallel on the Character board and the magnetic tape recorder switches, optionally both for display on the character board as well as for magnetic tape recording in the rhythm of the clock with selectable clock frequency are.

Compared to the previously known systems, the invention has the advantage that in the Creation of a teaching program regardless of whether it is displayed on the character board at the same time will or not, the observance of a certain clock frequency need not be observed and that Error corrections are more easily possible by removing the memory location which contains the error Difficulty can be erased and reassigned the correct character. It also enables the invention the reproduction of the created teaching programs with different clock frequencies, respectively correspond to the level of training of the student group concerned. Overall stand by the invention seven different function programs to choose from, namely:

Program 1:

The typed characters are visible on the character board.
Program II:

The characters entered are visible on the character board and simultaneously written on the magnetic tape.
Program III:

The characters recorded on the magnetic tape are read and displayed on the character board made visible.

Program IV:

the characters entered are stored in the electronic data memory. That remains the case The characters entered last are visible on the character table. With the backspace key is it is possible to reduce the address of the memory by one digit at a time, so that changes and Corrections of typing errors are possible without difficulty.

Program V:

The characters that were written into the electronic data memory under program IV can be made visible on the character board with an adjustable clock frequency.
Program VI:

The characters that are stored in the electronic data memory can be recorded at any point on the magnetic tape with an adjustable clock frequency.
Program VII:

The characters recorded on the magnetic tape are stored in the electronic data memory transfer.

These program variations, which have been greatly expanded in terms of numbers, make it much more flexible to use of the teaching system than is the case with the previously known teaching systems

On the basis of the circuit diagram shown in the drawing, the invention will now be described below for example explained in more detail

The learning system according to the invention has an input keyboard I, which has the same number and in has the same arrangement of characters and function keys as an electric typewriter. Besides that the input keyboard 1 is assigned a function keyboard 2, which has a total of seven function keys 3 The function keys 3 are individually via a total of seven lines 4 with a function decoder 5 connected.

The function decoder 5 controls a clock generator 7 which contains an oscillator 8 and a logic circuit 9. On the input side, the clock generator 7 is connected to the function decoder by four lines 6. The clock generator 7 is output via a line 10 to an address register 13 of an electronic data memory (RAM) 14 via a line 11 to a decoder and lamp driver 15 and via a line 12 to a serial / parallel-parallel / serial converter 16

We input keyboard works without contact and is over six bit channels 17 are switched to a multiplexer 18, the input side also by a further six Bit channels 19 with the data memory 14 and the six bit channels 20 with the serial / parallel branch of the Converter 16 connected.

The six outputs 21 of the multiplexer are at the same time on the decoder and lamp driver 15 and on the Data memory 15 and the parallel / serial branch of the Converter 16 switched. While the parallel / serial branch of the converter 16 on the output side via a Amplifier 22 is connected to read / write head 23 of a magnetic tape recorder 24 is the serial / parallel branch of the converter 16 on the input side via an operational amplifier 25 with the read / write head 23 connected.

The decoder and lamp driver 15 is used to individually control those not visible in the drawing Lamps of a character board 26 with a total of 54 key formers, which are arranged and labeled reproduce the keypad of an electric typewriter keyboard. Every single button image is provided with a lamp arranged behind it, so that practically every single key image lights up can be brought.

While the input keyboard together with the function decoder 5, the clock generator 7, the converter 16, the electronic data memory 14 with address register 16 and the multiplexer 18 form a structural unit form, which is usually installed at the teacher's workstation, is where the decoder and lamp driver are located 15 as an electronic component in the chassis of the character board 26. This has the advantage that for electrical connection of the character board 26 to the input unit 27 is only a 7-wire cable enough. The tape recorder 24 is normally also stationed at the teacher's workstation. To the A tone generator 28 with a loudspeaker 29 is also connected to the output line 111 of the clock generator 7. This tone generator is in the rhythm of the oscillator 8 at the same time with the lighting of a The button on the character board 26 is triggered and an acoustic signal is generated in the loudspeaker 29 caused so that the clock pulse of the clock 7 when processing a Lernprograrr.mes at the same time that so far Usual metronome replaced

With the help of the seven keys 3 of the program keypad 2, the seven already mentioned can be opened Furction programs can be carried out optionally.

The capacity of the data memory 14 is usually sufficient with 2048 storage locations. Depending on your needs it can also be chosen smaller or larger.

By means of two potentiometers, not shown, on the one hand the clock frequency of the oscillator 8 in Clock 7 and on the other hand the lighting time of the lamps of the character board 26 can be varied.

Depending on the function program keyed in, the are either entered from the input keyboard 1 or from Read / write head 23 of tape recorder 24 incoming characters via multiplexer 18 in rhythm the set clock frequency either in the decoder and lamp driver 15 and thus on the individual lamps of the character table 26 or given in the data memory 14. Reading out too the characters stored in the data memory 14 are made with the appropriate selection of the function program in Rhythm of the clock generator 7 or the oscillator S, with both the possibility of the read out To write characters on the magnetic tape and / or at the same time on the character board 26 for display bring. The characters arriving from the input keyboard 1 can also optionally be stored in the data memory 14, on the lamps of the character board 26 or on the magnetic tape or the read / write head 23 of the Magnetic tape device 24 are given. In any case, it is possible to use the visual display of the individual characters or function keys of the character table 26 in compliance with a selectable to allow the exact clock frequency, regardless of whether the input of the characters on the Input keyboard 1 takes place with a certain clock frequency or at completely uneven time intervals. It is important that the clock signal generated by the clock generator 7! is made audible at the same time, when the characters entered or stored are reproduced on the character table 26.

1 sheet of drawings

Claims (1)

Claim: Teaching system for group training in machine writing with an arrangement for creating and playing teaching programs with selectable character frequency sequences, consisting of an electric input keyboard and a character board with illuminated key images in a keyboard arrangement, as well as with an electronic circuit arrangement for connecting the input keyboard and / or character board to a magnetic tape recorder , characterized in that to control the flow of data from the input keyboard (1) to the magnetic tape recorder (24) and / or to the character board (26) or from the magnetic tape recorder (24) to the character board (26) an electronic, addressable read / write memory ^r (14 ) is provided in which the characters and function commands of one or more teaching programs can be coded in a manner known per se using the multiplex method and from which they can be written in by means of a function decoder (5) which can be influenced by function program keys (3), which processes a Tak The transmitter (7) switches to the screw-type read-only memory (14) and at the same time, individually or in parallel, to the character board (26) and the magnetic tape recorder (24), either for display on the character board (26) or for magnetic tape recording in the rhythm of the clock (7 ) can be called up with a selectable clock frequency.