DE2149519A1 - PROCEDURE AND ARRANGEMENT FOR DIGITAL CONTROL FOR OPERATING FUNCTIONS, PREFERABLY IN RADIO AND TELEVISIONS - Google Patents

Description

Standard Elektrik Lorenz AG, ο -ι / η c -ι ο '

Stuttgart / 14 3 0 13

W. Schröder-47

Method and arrangement for digital control for operating functions, preferably in broadcast and

Televisions

The invention relates to methods and arrangements for digital control of operating functions by means of current or voltage levels, preferably in radio and television sets, in particular according to patent .... (patent application P 21 38 876.1, W.Schröder-46).

Electronic information stores are already known which, among other things, also store voltage values for the Serve step-by-step regulation of operating functions in radio and television sets, see, for example, German patent specification 1 059 508, SEL reg. 10 471, W. Schröder-7 · According to this patent specification the use of "multiple arrangements of bistable flip-flop stages" is also known (see e.g. column 1, line 15). In addition, it has already been mentioned (column 8, line 35) that the said information memory replace four to five flip-flop stages can.

A previously proposed economical solution is that the stages in one direction one after the other by counting up pulses be formed at the counting input of a digital counting circuit or a digital information memory and via the same Counting input in the same direction (cycle) can be set back one level by a burst of (N-I) pulses, where N is the total number of counting steps of a complete counting cycle (patent application P 21 38 876.1, W.SchrÖder-46).

According to further explanations of this proposal mentioned, arrangements for generating the (N-1) countdown burst are also included and its feeding into the counter input

September 29, I97I

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a counting chain, so that the counting chain of each independent operating function thus receives two counting inputs: one for feeding in a single pulse for each forward step of the Control function and another for the injection of an (N-1) burst for each backward step of the control function.

Previously it was used to remotely control the operating functions of radio and televisions it is common to assign each operating function its own control frequency. With the mostly usual Ultrasonic remote controls each operating function has its own ultrasonic frequency.

The disadvantage of this method is, in addition to the extensive technical effort, the necessary adjustment of these frequencies, which both must be carried out on the ultrasound transmitter as well as on the ultrasound receiver. Since you have the forward and backward controls each must count as a separate function, for example, at least eight different ones are required for remote control of color television receivers Tax frequencies required. It is also disadvantageous that such arrangements are not easily integrated into technology Circuits can be executed because the necessary inductances and in some cases also the larger capacitances can not be integrated.

The invention is based on the problem of the method and arrangement. Specify genes for digital control for operating functions by means of current or voltage levels that do not have the disadvantages mentioned exhibit.

This object is achieved according to the invention in that for each of several operating functions to be operated each generate a coded number of pulses as a command signal and is repeated for each new operating step, and that this command signal via a common transmission path sent, temporarily stored, decoded and used to trigger the digital operating signal will.

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A storage and decoding arrangement for carrying out this method is designed according to the invention such that the coded command signals to the input of a digital counter, a capacitive or magnetic memory, a shift register or an electronic information memory, wherein these storage and decoding arrangements are at least as many different Outputs or output combinations show how different command signals are present.

According to one embodiment of the invention, the decoding circuit constructed in such a way that each output of the decoding circuit via an electronic switch with the input of the associated Counting circuit for the generation of the operating steps is connected, and that the electronic switch at the earliest after the storage of the last pulse of a complete command signal is switched on and at the latest before the last pulse is saved of the following command signal is switched off.

According to the invention, there is a different arrangement for binary-coded systems indicated, which is characterized in that the η outputs of the binary coded counting chain with the η inputs of the known Decoding circuit connected via η electronic switches, the earliest after the storage of the last pulse of a complete command signal and at the latest before storage of the last pulse of the following command signal can be switched off.

To those already in the German patent. . . . (Patent application P 21 38 876.1, W. Sehröder-46) proposed use of the (N-I) countdown burst to enable several operating arrangements together, is according to another embodiment of the invention with such a decoding arrangement at least one of the electronic switches in the switched-on state additionally with one (N-l) -burst according to patent .... (patent application P 21 38 876.1) modulated to reset the counting chains used for the operating funcfions.

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A circuit carried out in practice is according to another embodiment of the invention designed such that a digital counter is provided, and that each key to be operated manually this arrangement is assigned the preselection of a specific counting program which corresponds to the respective command signal, and that each key turns on a common bistable electronic switch when actuated, which has a common periodic The impulse generator starts up, the impulses of which are sent to the input of the digital counter and an electronic counter at the same time Switch are supplied to which the pulses as command signals can be removed, and that this electronic switch is switched on with the first pulse and after the expiry of the command button preselected counting program is switched off, while the pulse generator has additional ones that no longer belong to the command signal Provides pulses to the counter input until the required length of the pause between two command signals is determined by the number of the subsequent counting stages is determined, is reached, and that via one of the subsequent counting outputs or a combination thereof the bistable electronic switch and thus also the pulse generator and the counter are switched off.

In order to generate complete command signals both with short and with continuous keying, a circuit is provided in accordance with the invention indicated, which is characterized in that the switch-off signal for the said bistable electronic switch is a short, generated by differentiating the turn-off signal of a count output This is an impulse which leads to a brief switch-off of the bistable electronic switch when a command button is pressed remains pressed, and to a permanent switch-off position if no command button is pressed, the short-term or permanent The shutdown state may cause the digital counter to be reset.

The advantages achieved by the invention are in particular that circuits constructed according to the method according to the invention (e.g. for a digital ultrasonic remote control) for

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Control of various operating functions on just one frequency work and that accordingly only one adjustment frequency setting on the transmitting and receiving side is required. Also can these circuits are largely implemented in integrated technology and existing integrated circuits multiple times, if necessary also in combinations, used and known elements of digital technology, such as binary counting chains, decoders and matrix circuits to be used.

Embodiments of the invention are shown in the drawing and are described in more detail below. Show it

Figure 1 is a block diagram of a command signal generator according to the invention, which is square-modulated with the command pulses Emits an ultrasonic signal,

FIG. 2 shows a block diagram of the receiving part according to the invention with amplifier, demodulator, memory and decoder.

The function of the digital command signal generator in the ultrasonic range is explained with the aid of the block diagram of FIG. When one of the command _{buttons KT 1} ... KTg, which can also be formed by galvanically or capacitively triggered contact or proximity switches, is pressed, the bistable electronic switch ES _{1 is} switched on immediately. The multivibrator MU then periodically supplies square-wave pulses U ₁ both to the input of the first counting flip-flop F _{11 of} the binary counting chain BZK ₁ and to the monostable electronic switch ES.,.

With the first positive rising edge of the first square pulse of the pulse series U _1, all outputs of the counting flip-flops Pj ^ ₁ * • · ^ρ ι6 of ^the binary counting chain BZK ₁ jump to the plus potential. The monostable electronic switch ES _{2 is also switched on} from the outputs of the flip-flops F ^ and F ₁ , - via the matrix circuit MA ₁ and in turn sets the ultrasonic

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Oscillator UO in operation, which is periodically switched off and on _{by the rectangular pulse train U 1.} The square-modulated ultrasonic signal is emitted by the ultrasonic transducer USG, which can be a barium titanate flexural transducer, for example.

After the first pulse from U _{1 has brought} all flip-flop outputs to positive potential, the monostable electronic triple switch ES is switched on in the pulse pause via the switch-on pulse U- of the bistable electronic switch ES _1, which is delayed in the delay circuit VZ. So that the switch-on state is ended before the arrival of the second pulse of the pulse series U ₁ , the delayed switch-on pulse U "is limited in its duration, which can be achieved, for example, by differentiating. The connections distributed to the various contacts of the command keys KT ^ ... KTq with the aid of a diode or resistor matrix MAp ensure that each time another command key is pressed, a different combination of the outputs of the flip-flops F ₁₁ , F ₁₂ and F ₁ , via the monostable electronic triple switch ES, with the arrival of the delayed switching pulse U "can be switched to the ground potential. This means that counting processes are skipped before the second pulse of the series U ₁ arrives and the switch-off process for the ultrasonic oscillator is reached after a more or less reduced number of pulses, _{depending on which of the command keys KT 1 ... KTg is pressed.}

If none of the flip-flop outputs F ₁₁ , F ₂ or F _{1 are connected} to ground, the eighth pulse from U ₁ via the matrix circuit MA ₁ causes the monostable electronic switch ES _{2 to be switched off} , which also enables the ultrasonic oscillator to operate is interrupted. This switch-off position is reached earlier with all other matrix combinations. The criterion for switching off is the drop in the positive potential at the output of the flip-flop F ₁ J to zero potential. Regardless of how this criterion is achieved, the binary counting chain counts normally from this moment on

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Further. After a further eight counting steps, the output of the flip-flop F ρ falls from the positive potential to the zero potential and thus maintains the switch-off state of the monostable electronic switch ES ", which would otherwise be controlled by the output of the flip-flop F. ^ back to the switch-on position . After an additional sixteen counting steps, a switch-off signal for the bistable electronic switch ES ₁ appears at the output of the flip-flop Fg, which in turn finally switches off the entire arrangement when none of the command keys KT ₁ ... KT "is pressed any more. However, if a key is still pressed, ES _{1 is} switched on again after a short pause, which depends on the time constants of the switch-on branch, and the entire counting cycle starts again, even if pressing the command key is interrupted _{after the delayed switching pulse U 2} , a complete command signal appears on the USG ultrasonic transducer.

The short one, by differentiating the switch-off signal of a counter output The generated pulse thus leads to a brief switch-off of the bistable electronic switch when a command button is pressed remains pressed and to a permanent shutdown if no command key is pressed, whereby the short-term or ongoing withheld status, if necessary, a resetting of the digital counter causes. Each time a command key is pressed, a different one corresponding to the command signal is activated Presetting the counter has the effect that when the counting process starts thereafter, the remaining count results in a number of pulses which corresponds exactly to the desired coding of the relevant command signal.

For this purpose, each command button can be equipped with a corresponding number of contacts, and if necessary to be able to switch on the electronic switch and preselect the counter setting in an electrically isolated manner.

It is also useful to switch the electrical connections by decoupling or switching diodes or transistors

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establish each of only one contact of the command button can be controlled.

If the various command signals are triggered by a button that is to be operated manually, it is important to ensure that it functions properly Transmission is sometimes useful, with each key press, regardless of the duration of the actuation, only e i η complete Give command signal.

In most applications, however, it is advantageous if only one complete command signal is generated when a key is pressed briefly, whereas the associated command signal is periodically repeated when a key is pressed continuously, ψ as long as the key is pressed, but regardless of the time of the interruption started signal is terminated completely.

The individual impulses of the command signals can be switched off and on via the wireless connection path, modulation changes or frequency changes are transmitted sequentially.

Likewise, the pulse combinations of the command signals can also at least partially simultaneously over different frequencies and / or types of modulation are transmitted.

The switch-on and possibly also switch-off pulses for the above-mentioned bistable electronic switch can also coded in the command pulses and sequentially over the common transmission path or simultaneously over other frequencies or types of modulation are transmitted.

The switch-on and switch-off impulses can be changed by others for their duration Impulses can be made distinguishable.

Figure 2 shows the block diagram of the receiving part of a digital Ultrasonic remote control. That with your command pulses

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The modulated ultrasonic signal is converted into electrical signals with the aid of the microphone Mi, which can also be a barium titanate transducer, and fed to the input of the amplifier V. After amplification and demodulation in the demodulator DEM, the recovered command signal U is _{fed to the input of a binary counting chain (digital counter) BZK 2} and at the same time also to the input of the univibrator UN. The univibrator is brought into its unstable switch position with the leading edge of the first pulse of the command signal U, and falls back into its stable switch position after a time which corresponds at least to the expiry of the long-lasting command signal. Before that, however, the binary counting chain BZK _{3 is} controlled by the pulses U- of the command signal into the counting position assigned to the signal, as a result of which the command signal is stored. Instead of the digital counter, capacitive or magnetic memories, shift registers or an electronic information memory can also be provided, these memory and decoding arrangements having at least as many different outputs or output combinations as there are different command signals. The monostable electronic triple switch ESj is briefly switched on by the Abs ehalt flank Uj, of the univibrator UN, which is differentiated in the differentiating circuit DIP to the pulse U_, and delivers from the outputs of the counting Plops P ₂₁ , P ₂₂ and F ₂ , the potential stored there at the inputs 1, 2 and 3 of the decoder circuit DE, which is constructed in the manner of the known decimal decoder, depending on the potential combination at the inputs, the desired signal _{appears at a certain one of the outputs A 1 ... Ag} , the duration of which is generally identical to the duty cycle of the monostable electronic triple switch.

In front of the input 3 of the decoding circuit DE is the monostable electronic switch ES_, which is periodic with the Pulses of an (N-I) burst is switched and thus the the signal to be passed on to input 3 is modulated with this burst. All outputs of the DE decoder that are connected via its internal matrix

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related to this input 3, deliver with this circuit (Nl) bursts to reset the digital control circuits for operating functions. The burst generator BG is started here every time when a certain, for example positive potential is switched through via the monostable electronic switch ESg at the same time at the contact 3 'of the monostable electronic triple _{switch ES 1 ^.}

The circuit example can be designed, for example, that with the single to eightfold impulses of the command ginais, respectively also at the outputs A. to A «a positive trigger pulse for one operating step of the connected operating circuit appears.

In the practical case, certain outputs of the decoder DE are also functions for controlling relays, such as inputs and outputs Switching off the device to be remotely controlled or intended for a frequency selection.

In more general terms, a binary-coded counting chain is provided in this arrangement for storing and decoding, which has a counting input for the coded command signal and its η outputs are connected to η inputs of a known decoding circuit, at whose 2 ⁿ outputs two switching states in Depending on the signals at the η inputs are possible. Only one output has a different state than all other 2 ⁿ -l outputs, and the required 2 ⁿ signal combinations at the η outputs of the binary counting chain are achieved by the different pulse numbers of a command signal at the input of the counting chain.

With a corresponding coding of the command signal, it is also possible to use only one counting chain for storage and decoding. As can be seen, such an arrangement is implemented for binary coding, for example, by using a binary counting chain, the counting input of which is command-

rt

signals are fed, each consisting of 2 pulses

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2
up to a maximum number of pulses 2 max, where U and Z__ "each

lUclX

weils a positive whole number greater than or less than or equal 1 and the counting chain preferably of Z_ _e "elements with Z." consists outputs.

In this arrangement, too, only one output has one

2 different switching status than all other 2 -1 outputs, so that a clear differentiation through the respective command signal a selected operating function becomes possible. In all of these cases, a different one is generated with each coded command signal The output of the decoding circuit is switched, and each of these outputs can have a different operating function with each Signal repetition can be controlled by one step. Because of the sequential transmission of the command signals, the The commanded operating step can only be triggered when the associated command signal has been completely saved and is decoded. Therefore, in the decoding circuit, each output is connected to the input via an electronic switch connected to the associated counting circuit for generating the operating steps and the electronic switch is at the earliest switched on after the last pulse of a complete command signal has been saved and before saving at the latest of the last pulse of the following command signal switched off.

For binary coded systems, however, there is another possible one Arrangement which consists in that the η outputs of the binary coded counting chain with the η inputs of the known decoding circuit connected via η electronic switches, which at the earliest after the storage of the last pulse of a complete Command signal switched on and switched off at the latest before the last pulse of the following command signal is saved will.

Because the electronic switch here is not at the outputs, but at the inputs of the decoding

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circuit, not 2 ⁿ , but only η electronic switches are required.

According to the exemplary embodiment, the switch-off edge of the univibrator differentiated, and the resulting impulse to brief switching on of the electronic switch is used.

If higher demands are placed on accuracy, it is more precise to switch on a second univibrator with the switch-off edge of one univibrator, the longest switch-on duration of which is shorter than the shortest pause between two command signals plus the duration of the shortest command signal, and the ■. With its duration aupr controls the switch-on time of the electronic / visual switch.

To the already in the patent .... (patent application P 21 38 876.1) proposed use of the (N-I) countdown burst for several To enable operating arrangements together, such a decoding arrangement is provided in which at least one the electronic switch when switched on also with an (N-l) burst according to patent .... (patent application P 21 38 876.I) is modulated to reset the counting chains used for the operating functions.

Or at least one of the electronic switches is arranged in series with a second electronic switch, the one with an (N-I) burst according to the suggestion mentioned for resetting the one used for the operating function Counting chains is modulated, the beginning of the (N-I) burst being triggered by the switch-on edge of the first electronic switch will.

There can be any length between the circuit for generating the command pulses and the storage and decoding arrangement Cable connection, possibly with pluggable connection contacts, can be inserted.

changed likeSß input
received on.

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The circuit for generating the command pulses and / or the command buttons can be present several times and in parallel the storage and decoding arrangement act so that the same operating functions are triggered from different locations can be.

The control device for digitally influencing the operating functions can, however, also be used in parallel with the usual control device can be connected for these operating functions.

The cable connection can also be completely or partially replaced by wireless connection links. These wireless links can be made with light, radio frequency, electrostatic, capacitive, magnetic, inductive, acoustic or ultrasonic signals work.

34 claims
2 sheets of drawings

3098 1 S / OA6S

Claims (1)

Claims (Ί ./ method for digital control for operating functions by means of current or voltage levels, preferably in radio and television sets, in particular according to patent .... (patent application P 21 38 876.1, W. Schröder-l | 6), characterized in that For each operating step of a certain of several operating functions to be operated a coded number of pulses is generated as a command signal and is repeated for each new operating step, and that this command signal is sent over a common transmission path, temporarily stored, decoded and used to trigger the digital operating signal. 2. Storage and decoding arrangement for performing the method according to claim 1, characterized in that the coded command signals are fed to the input of a digital counter, a capacitive or magnetic memory, a shift register or an electronic information memory, these storage and decoding arrangements at least as many have different outputs or output combinations, how different command signals are available. 3. Arrangement according to claim 1 and 2, characterized in that a binary-coded counting chain, which has a counting input for the coded command signal, is connected with its η outputs to η inputs of a known decoding maintenance, at whose 2 ⁿ outputs two switching states for each output are possible depending on the signals at the η inputs, whereby only one output has a different state than all the other 2 ⁿ -l outputs, and the required 2 ⁿ signal combinations at the η outputs of the binary counting chain through the different pulse numbers of a command signal can be reached at the input of the counting chain. 3098 1'5 / 0466 W. Schröder-47-15-2 H 9 5 1 9 k. Arrangement according to one of the preceding claims, characterized in that a binary counting chain is provided, the counting input of which is supplied with command signals which each consist of 2 pulses up to a maximum number of pulses 2 max, where Z and Z__ "are each a whole positive number greater than or equal to met x is less than or equal to 1 and the counting chain preferably consists of Z _χ members with Z__ "outputs. IUcLX 5. Arrangement according to one of the preceding claims, characterized in that each output of the decoding circuit is connected via an electronic switch to the input of the associated counting circuit for generating the operating steps, and that the electronic switch is only after the storage of the last pulse of a complete command signal switched on and switched off before the last pulse of the following command signal is saved at the latest. 6. Arrangement according to one of the preceding claims, characterized in that the η outputs of the binary-coded counting chain are connected to the η inputs of the decoding circuit via η electronic switches, the earliest after the storage of the last pulse of a complete command signal and at the latest before Storage of the last pulse of the following command signal can be switched off. 7. decoding arrangement according to claim 5 and 6, characterized in that the time control of the electronic switch is carried out by a common univibrator, the switch-on position triggered by the leading edge of the first pulse of a command signal, and the duration of which is chosen so that its switch-off position at the earliest after last pulse of the longest-lasting command signal is reached within the pause between two possible command signals, whereby the switch-off edge of the univibrator is used to switch on the electronic switch. 309815/0466 8. Decoding circuit according to claim 5 »6 or 7» characterized in that the switch-on edge of the univibrator is used to switch off the electronic switch. 9 · Decoding arrangement according to claim 5 »6 or 7», characterized in that the switch-off edge of the univibrator is differentiated and this pulse is used for briefly switching on the electronic switch. 10.Decoding arrangement according to claim 5 »6 or 7, characterized in that the switch-off edge of the univibrator switches on a second univibrator, the longest duration of which is shorter than the shortest pause between two command signals plus the duration of the shortest command signal, and that the second Univibrator also controls the switch-on time of the electronic switches with its duty cycle. 11.Decoding arrangement according to claim 5 to 10, characterized in that at least one of the electronic switches in the switched-on state additionally with a (Nl) burst according to the patent. . (Patent application P 21 38 876.1, W. Schröder-46) is modulated to reset the counting chains used for the operating functions. 12.Decoding arrangement according to claim 5 to 10, characterized in that at least one of the electronic switches is arranged in series with a second electronic switch, which with an (NI) burst according to patent .... (patent application P 21 38 876.1, W. Schröder-46) is modulated to reset the counting chains used for the operating functions, whereby the start of the (NI) burst is triggered with the cut-in edge of the first electronic switch. 309815/0466 13. Digital control method for operating functions according to one of the preceding claims, characterized in that the various command signals are triggered by a key to be actuated by hand, each time only one complete command signal is emitted, regardless of the duration of the actuation. 14. The method according to any one of claims 1 to 12, characterized in that when a key is pressed briefly, only a complete command signal is generated, when the key is pressed continuously, however, the associated command signal is periodically repeated as long as the key is pressed, but regardless of At the time of the interruption, a started signal is completely terminated in each case. 15. Arrangement for carrying out the method according to claim 1, 13 and 14, characterized in that a digital counter is provided, and that each manually operated key of this arrangement is assigned the preselection of a specific counting program which corresponds to the respective command signal, and that each key holds a common bistable electronic switch when pressed, which sets a common periodic pulse generator in operation, the pulses of which are fed to the input of the digital counter and at the same time an electronic switch from which the pulses are taken as command signals, and that this electronic switch when The first activated pulse is switched on and switched off after the counting program selected via the command key has elapsed, while the pulse generator supplies further pulses that no longer belong to the command signal to the counting input until the required length of the pause between two command signals len, which is determined by the number of subsequent counting levels, is reached, and that the bistable electronic switch and thus also the pulse generator and the counter are switched off via one of the subsequent counting outputs or a combination thereof. 30981S / 04SS W. Schröder-47 -18- 16. An arrangement for carrying out the method according to claim 1, 13s 14 and 15, characterized in that the switch-off signal for the bistable electronic switch is a short pulse generated by differentiating the Abs.chaltsignal of a counting output, such that it leads to a brief switch-off of the bistable electronic switch leads if a command button is pressed and leads to a permanent switch-off position if no command button is pressed, the short-term or permanent switch-off state being used, if necessary, to reset the digital counter. Arrangement according to claim 15 and 16, characterized in that with each actuation of a command key a different presetting of the counter corresponding to the command signal takes place in such a way that in the subsequent counting process the remaining count results in a number of pulses which exactly corresponds to the desired coding of the relevant Corresponds to the command signal. 18. The arrangement according to claim 17, characterized in that each command button is equipped with a corresponding number of contacts, optionally in such a way that the switching on of the electronic switch and the preselection of the counter setting can be carried out electrically isolated. 19. The arrangement according to claim 17, characterized in that the electrical connections to be switched by decoupling or. Switching diodes or transistors are made, which are each controlled by only one contact of the command button. 20. Arrangement according to Claims 15 to 19, characterized in that a binary-coded counting chain is provided as the digital counter. 21, arrangement according to claim 15 to 20, characterized in that the presetting of this counting chain takes place in the pause after the first pulse which is sent to the counting input by the periodic pulse generator. 3098 15 / QA6S W. Schröder-47-19- '2 1 A 9 5 1 9 22. The arrangement according to claim 21, characterized in that the correct timing control pulse for the presetting is generated from the switch-on pulse for the bistable electronic switch with the aid of a delay circuit. 23. Arrangement according to claim 20, characterized in that at each output and / or input of each counting element of the binary counting chain there is an electronic switch which is connected to the triggering contact of the command buttons via a matrix circuit, in particular composed of resistors and / or diodes, and that all electronic switches are switched on together briefly by the control pulse for the presetting and the affected outputs and / or inputs of each counter element are switched over, for which purpose the triggering contact of each command key is on the switchover potential. 24. Arrangement according to claim 15 to 23, characterized in that the outputs of the digital counting chain are guided via the matrix circuit and the contacts of the command keys to a simple common electronic switch which applies the switching potential to the outputs of the digital counting chain. 25. Arrangement according to claim 13 to 24, characterized in that the manually operated command buttons consist of galvanically or capacitively triggered contact or proximity switches. 26. The arrangement according to claim 1 to 25, characterized in that a cable connection of any length, optionally with plug-in connection contacts, is inserted between the circuit for generating the command pulses and the memory and decoding arrangement. 27. The arrangement according to claim 1 to 25, characterized in that the circuit for generating the command pulses and / or the 309815/0466 W. Schröder-47-20-21 A 9 51 9 Command keys are available several times and in parallel on the memory and decoding arrangement act so that the same operating functions are triggered from different locations can. 28. Arrangement according to claim 1 to 27 » characterized in that the control device for digitally influencing the operating function is connected in parallel to the usual control device for this operating function. 29. The arrangement according to claim 1 to 28, characterized in that instead of the cable connection, a wireless connection path is provided in whole or in part. 30. Arrangement according to claim 29 » characterized in that the wireless links work with light, high frequency, electrostatic, capacitive, magnetic, inductive, acoustic or ultrasonic signals. 31. The method using an arrangement according to claim 30 » characterized in that the individual pulses of the command signals are transmitted sequentially via the wireless connection link by off-on functions, modulation changes or changes in frequency. 32. A method for operating a connection link according to claim 30, characterized in that the pulse combinations of the command signals are also transmitted at least partially simultaneously over different frequencies and / or types of modulation. 33 · Method for operating an arrangement according to claims 5 to 10, characterized in that the switch-on and possibly also the switch-off pulses for the bistable electronic switch are encoded in the command pulses and sequentially via the common transmission path or simultaneously via other frequencies or Modulation types are transmitted. 3098 15/0466 W. Schröder-47-21-2H9519 34. The method of claim 33 'characterized in that the inlet ₃ and off pulses are made distinguishable by their duration of the other pulses. 29th September 1971
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