DE3248278A1 - Method of position-correctly stopping a film - Google Patents

Abstract

For position-correctly stopping a film which is provided with film frames and can be moved forward or backward by a drive mechanism, on the film there are provided markings which are detected and evaluated by a detector device. The detector device is arranged at a predetermined distance ahead of the optical axis of the film trap. The selected film frame is moved in fast mode to the detector device by means of a drive mechanism influenced by a control circuit. Upon detection of a selected film frame marking in the detector device, the drive mechanism is switched over for reverse film running and the film with the selected marking, which continues to be moved on account of the inertia of the system, is moved back in fast mode in front of the detector device. After renewed detection of the film frame marking, the drive mechanism is switched over to slow mode. When slow mode is switched on, a film-length pulse generator is activated, the pulses of which are read in in a memory device in a manner similar to a shift register and are compared with a pulse comparison value for the distance between detector device and optical axis. During the slow mode, any further markings detected by the detector device are read in and their position is determined.

Description

Procedure for stopping a film in the correct position

The invention relates to a method for stopping in the correct position one provided with film images forward or backward by a driving device moveable film, the markings associated with single or multiple film frames is provided, which are determined and evaluated by a detector device, wherein the detector means in front of a predetermined distance. the optical axis the picture stage is arranged.

The invention 1 ieg the object of providing a method of the initially to create the type mentioned, with the help of both film forward and an interference-free and correctly positioned image marking detection when the film is reversed It should be possible to stop the film image in the picture stage. Such film image marks can be provided on one or the other film edge or also on both film edges be.

The object is achieved according to the invention in that the selected Film image by means of a drive device influenced by a control circuit in high speed either directly in forward motion and / or via the optical axis in Reverse run to the detector device is moved that when running directly in the forward direction moving film at the first detection of the selected Film image marking the drive device is switched to fast reverse, which upon detection the selected film marking in the detector device from the fast Reverse is slowed down and then switched to slow forward, that after renewed recognition of the film image marking of the slow moving film with the selected marking in the detector device a film length pulse generator is effectively switched, the pulses of which in a storage device like a shift register read in and with a pulse comparison value for the distance between the detector device and optical axis are compared and that any read in further markings recognized by the detector device and in terms of their position can be detected.

This method has the advantage that the film is initially overdriven is moved, with the detection of a film image marking from the beginning moving in reverse speed or after reversing from forward speed reverse fast moving film in the mark detector device of the Film is slowed down, but the film is due to the inertia of the entire system moved a little further. At this stage or after one given distance, the film is switched to slow motion (forward motion). At the point in time at which the film image marking reaches the detector device again, a film length pulse generator is activated, the at least one pulse train emits whose temporal or local wavelength is small compared to the dimensions of a film image. With the activation of the film length pulse generator stage is now the current status of the film image moving slowly on the optical axis compared with the number of pulses corresponding to the distance between the detector means and corresponds to the optical axis. Has the film image reached the stage in the correct position, the drive device is stopped. Advantageously, with the Activation of the slow speed mode also further, at the image marking detector stage Recognized film image markings are read in and their position is recorded. Thus, with a following selection of a filntild, which is now located between the detector device and the optical axis is located in a simple manner without switching on the high-speed mode captured and brought in front of the picture stage.

According to further training, the influencing or regulation takes place the drive device of the film reader, which is preferably a microfilm reader is, the storage and the comparison of the impulses as well as the influencing of the Display device in a microcomputer, wherein an interrupter logic circuit (Interrupt logic circuit), which both by the detector device and through- the film length encoder is affected when scanning a selected image marking signal interrupts the routine program of the microcomputer until the in the interrupter logic circuit The information contained in the microcomputer is evaluated.

The invention is also based on the object of a safe working To create a device for performing the method mentioned at the outset. the The object is achieved in that the interrupter logic circuit through the Film length pulse generator can be influenced pulse logic circuit in which a Working cycle pulse sequence as well as signals for recognizing the film direction are generated and wherein clocked memory stages are also provided which store the image marking signals and save running signals.

Advantageously, the interrupter logic circuit includes a Film mark length measuring circuit consisting of an up and down counter and a There is a gate whose gate time is determined by the respective rising film marking pulse edge and whose associated film marker falling edge is determined and whose Clock input is supplied with the work clock pulses. This is the advantage given that with the help of the up and down counting the length of a film frame mark can be determined, keeping the number of clock pulses within the shortest possible Goal time is large compared to this goal time.

With each film image marking, the up and down counters a pulse packet of a given length is supplied. The film receives when just a film image marker is located below the film image marker detector device, the command to move backwards, the gate time is determined by the time between the start of the tmarking start and the subsequent exit from this marking start after reversing direction. The time of leaving the start of the marking is in the counter the count is equal to "0" because the number of counted pulses is equal to the number of pulses counted down. Such an impulse is not evaluated.

The clocked memory stages are advantageously through the respective falling edge of the pulses is controlled. This has the advantage that only the count of the counter is reached before the signals are then forwarded to the outputs of the memory flip-flops.

According to a further embodiment, the clocked memory stages are preferred JK flip flops. These are connected to a priority coding stage, their input signals are fed to the digital outputs according to a specified priority key. This has the advantage that the subsequent microcomputer circuit the signals to be processed according to a specified priority or ranking receives.

In a further refinement, the one that characterizes the direction of rotation Output of the pulse logic circuit each with the input of a first and second JK flip-flops connected, the clock input each through the film frame marking detector device can be influenced.

In a further embodiment, the pulse logic circuit has two control connections to the film length pulser circuit containing two pulse stages, one of which the first a first pulse train and the second a phase shifted pulse train supplies, the phase shift being chosen so that an increasing or falling pulse edge of a pulse phase of a pulse train within the pulse phase the other pulse train lies. The respective impulse phase of the one falls here Pulse sequence temporally in one part of the corresponding pulse phase of the other Pulse train as well as in their respective adjacent zero-phase range.

This allows the advantage that a clear directional recognition of the moving film is possible. It is advantageous if the size is the same Pulse and zero phases of the two pulse trains have a phase shift equal to 900.

According to a further embodiment, the film length pulse generator circuit four clocked flip-flop stages that show monostable behavior. Your tipping time is short compared to the temporal phase shift. The entrances of the first two Flip-flops are activated directly by the first pulse train, the inputs of the other two Flip-flops through the inverted first pulse train, the clock inputs of the first and fourth flip-flop directly through the second pulse train and the clock inputs of the second and third flip-flop controlled by the inverted second pulse train. The flip-flops are activated by the falling edge of the second pulse train clocked.

The signals at the outputs of the four individual multivibrators are linked by OR gates. The outputs are advantageous the first and third flip-flop with a first OR gate and the outputs of the second and fourth flip-flop connected to a second OR gate, the Outputs of both OR gates with another OR gate and with a setting and reset input of a memory flip-flop are connected, with the output of the OR gate the counting clock pulses, at the output of the memory flip-flop a static, the direction of film movement characterizing potential and at the output of the third or fourth flip-flop the respective film movement direction characterizing short pulses appear. These are so-called dynamic film motion direction signals, which with occur again every cycle of the second pulse train. The counting pulse occurs with twice the frequency, since two clock pulses are generated during each pulse time will. The static direction signal controls z. B. the up and down counter.

According to a further development, there is the film length pulse generator stage the end one with a roller driven by the film, one with these connected, alternating translucent and opaque radial Stripes exhibiting disc, made of a fixed, otherwise opaque formed disc, which is provided with two cutouts, each with radial, alternately translucent and opaque strips are provided, the correspond to those of the rotating disk, with the strips of one section relative to the strips of the other section locally by the phase angle, preferably phased 900, are offset and both cutouts are each a forked light barrier assigned.

In the following the invention is shown in FIGS Embodiment described. They show: FIG. 1 in a schematic representation a microfilm drive and control device with scanning of film marks, FIG. 2 shows a partial plan view of the device according to FIG. 1, FIG. 3 shows one with forked light barriers provided pulse generator device, Figure 4 the two from the pulse generator device Pulse sequences obtained, Figure 5 is a schematic representation of the through the device according to Figure 1 or 2 to controlled microfilm control and regulating device, Figure 6 a signal conditioning circuit for the circuit according to FIG. 5 and FIG a direction of rotation detection circuit.

According to FIG. 1, 1 denotes a microfilm with film markings 2 and 3, which are also called blips. With 4 a film reel or Denotes a supply reel which is connected to a motor 5. At 6 is a take-up reel which is driven by a motor 7. By means of an electromagnet 8, a counter roller 9 can be moved against the film 1 when slow running is desired, whereby the film is pressed against a film drive roller 10 for low speed. This slow roll film 10 is connected to a motor 11. With a guide role 12 is designated. These is located in front of a scanning arrangement 13 for the detection of blips. This blip scanner consists of a lamp 14, a diaphragm 15 and a blip sensor stage 16. The blip scanning device 13 is located at a predetermined distance a in front of the optical axis 17. With C denotes the film running device (forward running). Behind the optical axis there is a pulley 18, which is part of a coded optical pulse generator or film length encoder 19 is. A coding disk 20 is connected to the deflection roller 18. A fixed encoder disk is designated by 21 and is attached to a circuit board 22 is. Two. Fork light barriers 23 and 24 deliver pulses to one output A1 and B1 each.

The two outputs of the blip scanner 13 are labeled A2 and B2 called.

A counter roller 25 is located next to the deflection roller 18. Another Deflection roller is denoted by 26.

According to FIG. 3, the coding disk connected to the roller 18 has 20 radially alternating translucent and opaque strips. at a roller circumference of 6 cm are expediently 250 transparent or not transparent strips provided (part ratio 1: 250). The fixed coding disk 21 has two sector-like coding areas 27 and 28. The single radial translucent and opaque strips of the two coding segments 27 and 28 have the same division ratio as the rotary encoder disk 20th However, the strips of the coding segment 28 are opposite to the strips of the coding segment 27 locally shifted by 900 (1/4 wavelength). This means that when moving Film 1 shows the pulse train 29 obtained at output A1 compared to that occurring at output B1 Pulse sequence 30 is offset by 900. This curve profile is illustrated in FIG. The period of the two pulse trains is denoted by T.

Due to the equal division of the two coding segments 27 and 28 and the rotary encoder disk 20 are the pulses in terms of their shape, their Wavelength or period and the same size in terms of their amplitude. One and only The difference is the phase shift of 900.

With a circumference of 6 cm of the roll 18 results in the division of 1: 250 per full pulse length a film length allocation of 0.24 mm. Due to the phase shift With both pulse trains it is possible to determine in which direction the film is moved.

According to Figure 5, the two connection points A1 and B1 of the film length encoder connected to a signal conditioning circuit 31, which is also known as an interrupt logic circuit tion is called. This interrupt logic circuit 31 interacts with a microcomputer 32, in which the individual blips are counted, stored , the sequence control of the entire control and regulation cycle takes place as well as the automatic control and regulation of the film movement takes place. Through the so-called Interrupt logic circuit 31 becomes the normal or routine operation of the microcomputer 32 interrupted and the information contained in this logic circuit to the microcomputer 32 supplied. Only then does the normal duty cycle of this microcomputer 32 become resumed when the information flown from the interrupt logic circuit 31 is processed. In this case, the interrupt logic circuit 31 receives a termination or stop signal.

A program memory is denoted by 33 and a data memory is denoted by 34.

This data memory 34 has, inter alia. how a shift register works. The number of pulses of the optical pulse generator or film length generator 19 that are necessary are to measure the distance a between the blip-scanning device 13 and to travel through the optical axis 17 is permanently stored.

At 35 is a control circuit for the motors 5, 7, 11 and the Electromagnet 8 designated. A control panel 36 has a display device 37 3 7 on.

The two outputs A2, B2 of the blip scanner 13 are over Amplifier 38, 39 connected to a comparator 40, the output of which with the so-called Interrupt logic circuit 31 is connected.

After selecting a certain microfilm image, the film moves at high speed in the direction of the optical axis. Reached the assigned Blip marking the blip scanning or sensor station 13, so the shutdown and reversing the polarity of the motor 7 caused. Due to the inertia behavior of the arrangement however, the selected image is up to the area of the optical axis 17 or above moved out. The film is then transported back to the blip sensor station 13. The motor 11 is then switched on for slow transport of the film. The blip assigned to the selected film frame and the following blips are now Read in and stored in the manner of a shift register. The number of storage locations is chosen so that all between the blip sensor station 13 and the optical axis 17 located blips of the film 1 are stored. The number of storage locations is thus a measure of the distance a between the blip sensor station 13 and the optical one Axis 17. The blip of the selected film frame now reaches that of the optical axis assigned memory location of the shift register, the motor 11 is stopped. Due to the fine subdivision of the optical pulse generator 19 is the selected one The film image is now correctly positioned in the optical axis of the film platform.

The program memory denoted by 33 is a so-called fixed program memory (ROME). The data memory labeled 34 is also called a working memory and is used to write and read data (RAM).

In Figure 6 is the signal conditioning or interrupt logic circuit 31 shown in detail. From the connections Al, Bl of the pulse length signal generator each leads to a connection via an amplifier 41, 42 to a logic circuit 43, in which the counter clock pulses are generated in which the direction of rotation or direction of movement the film-defining potential is generated and in which pulses are generated, which indicate the direction of rotation or bending of the film. Pm output Ql this Circuit 43 the counting clock pulses occur at output Q2 the direction of rotation potential, the reverse pulses at output Q3 and the forward pulses at output Q4. Of the Clock output Q1 of the pulse circuit 43 is on the one hand with a gate circuit 44 and on the other hand connected to a connection point 45 which leads to the microcomputer 32.

From the output 42 leads the forward and backward movement of the Film-defining output line to the J input of a JK flip-flop 469 that too referred to as a blip forward flip-flop. The output Q2 is also connected to the inverted input J of a second JK flip-flop 47, which is also called Blip-flyback flip-flop is called.

Furthermore, the output Q2 with the input E is an up and down counter 48 connected, the one forwards when the film is advanced and the one when it is reversed of the film counts backwards. Its clock input is with the output of the gate circuit 44 connected. The gate circuit 44 has a second input that is connected to the output an inverter circuit 49 is connected. A first input of this inverter circuit is connected to the output of the comparator circuit 40, while a second input is connected to a terminal 50. The potential at input 50 determines whether a Positive or negative film with blip marks is used. The two JK flip-flops 46 and 47 have a common clock line, which is connected to the output of the inverter circuit 49 is connected.

The output Q3 of the pulse generator circuit 43 is connected to the clock input of a flip-flop 51, while the output Q4 of the pulse generator circuit 43 is connected to the clock input of a second flip-flop 52.

In the gate circuit 44, a pulse packet is generated, the individual pulses by the frequency of the clock pulses at the output Q1 of the pulse generator circuit 43 is determined and its gate time is determined by the length of the existing on the film 1 Blips is set.

The JK flip-flops 46 and 47 are edge-triggered flip-flops that are switched in such a way that they respond to the falling edge when the potential jump from "1" clocked to "0". The gate circuit 44 is activated by the rising and falling edge of the blip signal gw controls. This has inter alia. the very significant advantage that z. B. also then, -when there is a blip between the light barrier when the direction of the film is reversed the blip sensor circuit 16 is located in the gate circuit 44 a single pulse packet is produced. In detail, this means that during the film advance for this blip concerned a certain number of pulses of the clock output Ql of the pulse generating circuit 43 upwards into the up-down counter 48 are counted and that then when the direction of movement of the film is reversed the same number of pulses are counted backwards, so that when reaching the rising edge for forward movement, this as falling edge for backward movement is evaluated, whereupon the gate circuit 44 is blocked. The gate time is determined by the time between the rising edge and the falling edge of the blip pulse. at Reversal of movement on a blip is therefore the rising edge of the backward movement to the trailing edge. Since in this case the up-down counter at the output Q the Pulse number indicates "0", this pulse is not evaluated in the microcomputer 32. With the connection point 53 is referred to, which with the output Q of the up-down counter 48 is connected. With 54 is another connection point of the interrupt logic circuit denotes those with reset inputs of the up-down counter 48 and the JK flip-flops 46 and 47 is connected.

Namely, the microcomputer 32 has its from the interrupt logic circuit received Evaluated information, he gives a termination pulse via the connection point 54 at levels 46 to 48.

With a coding circuit 55 is referred to, in which the signals of the JK flip-flops 46 and 47 as well as flip-flops 51 and 52 and other stages, which are not shown in more detail as mirror-image steps to flip-flops 46 and 47 are, according to a predetermined order of priority or

Ranking are rated and coded. This means that the aforementioned Signals in the specified order of priority via the outputs Ql and Q2 to the microcomputer 32 are fed. The output Ql supplies a so-called interrupt command or interrupt request pulse to the microcomputer 32. The microcomputer 32 then fetches the data information in the order of priority via the 3-bit output Q2. The connection point assigned to output Q2 is labeled 56 and that to output Q1 associated connection point is designated by 57.

With a connection point is designated 58, through which the microcomputer 32 then a reset or disable signal to the R inputs of the flip-flops 51 and 52 outputs when in the interrupt coding circuit 55 no forward or reverse signals should be assessed or evaluated. The two flip-flops 51 and 52 assigned The inputs of the interrupt coding circuit 55 are labeled A1 and A2 and the Q outputs the inputs associated with the JK flip-flops 46 and 47 are designated by A3 and A4. the Inputs A5 and A6 lead to outputs Q of mirror-image flip-flops 46 and 47 associated JK flip-flops. The mirror image circuit stages are in the stage indicated by 59 is arranged.

When the film is moving forward, the pulse generator circuit is connected to output Q2 43 indicates the potential "1". With the falling edge of the output of the inverter circuit 49 pulse occurring at the end of a scanned blip becomes this potential "1" shifted from the J input of the JK flip-flop 46 to the output Q and is on Input A3 of the interrupt logic circuit 55 on. When running backwards the film lies the potential "O" at the output Q2 of the pulse generator circuit as "I" (due to inversion ) at the J input of the JK flip-flop 47. With On the falling edge of a blip pulse, this "I" potential becomes the Q output pushed through and is as such at input A4 of the interrupt logic circuit 55 on (static).

The forward flip-flop 52 turns on each time the movie is advanced Period of the film length pulse generator 19 offered a short pulse as a clock pulse. If the potential at input R is "O", the first forward pulse the output Q equals "1" in terms of potential. When the microcomputer 32, the flip-flop 52 blocked, the potential at output Q jumps to "0". -It only jumps then to the value "1" if a new pulse from the Film length encoder is coming.

The same applies to the backward movement of the film with regard to the Flip-flops 51. When the film moves forward, the output Q3 of the pulse generator circuit occurs 43 no impulses. When the film moves backwards, the Pulse generating circuit 43 does not generate any pulses.

The pulse generator circuit 43 is shown in Figure 7-. These The pulse generator circuit has four edge-triggered JK flip-flops. The first JK flip-flop 60 has its J input connected to the connection point Al, while the clock input is connected to the input Bl.

A connection leads from output Q via a delay element 61 to an inverting reset input R. The delay time is very short compared to the 90 ° phase shift between the two pulse trains of the optical film length pulse generator 19. The K input of the flip-flop 60 is with Ground connected. The second JK flip-flop is denoted by 62. Its J input is also connected directly to the connection point Al, while the clock input via an inverting gate 63 is connected to the connection point B1. The output Q is connected to the inverting reset input R via a delay element 64. The delay time corresponds to that of the delay element 61. The third JK flip-flop is labeled 65. Its J input is via an inverter 66 connected to the input A1 during the clock input via the inverter 63 is connected to junction B1.

The output Q of this JK flip-flop 65 is via a delay stage 67 connected to the inverting reset input R. The fourth JK flip-flop is denoted by 68. Its J input is via the inverter 66 with the connection point Al connected, while the clock input is connected directly to the connection point Bl is. The output Q is via a delay element 69 with the inverting reset input R connected.

The output Q of the first JK flip-flop 60 is connected to the first input an OR gate 70, the second input of which is connected to the Q output of the JK flip-flop 65 is connected. The output Q of the second JK flip-flop 62 is with the first Input of a further OR gate 71 connected, the second input with the Output of the fourth JK flip-flop 68 is connected. The output of the first OR gate 70 is connected to the R input of an RS flip-flop 72, the set input S is connected to the output of the second OR gate 71.

A connection each leads from the outputs of the two OR gates 70 and 71 to a third OR gate 73, the output of which is connected to the connection point Ql istg at which the clock pulses occur.

The output Q of the R flip-flop 72 is connected to the connection point Q2, at which a forward or backward movement of the film is characteristic occurs. When the film moves forward, the potential at this output is the same "1" while it is "O" in the case of back warming.

The output Q of the third JK flip-flop 65 is connected to the connection point Q3 connected, at which a short pulse occurs when the potential at the input Al is equal to "0" and at the same time at the input B1 the potential from "0" to the value "1" jumps. This pulse has the pulse length of the delay stage 67. This short-term impulse characterizes the Reverse the film. He occurs periodically, with the same frequency as the pulse train at the input Bl. At the output Q of the fourth JK flip-flop 68, a pulse occurs when at Forward movement of the film, the potential at the input A1 is "0". and the potential at input B1 jumps from "1" to "0". The pulse length is determined by the delay element 69 determined. With every falling pulse edge of the pulse train occurring at input B1 this forward impulse is generated.

When the film is moving forward, there is no pulse at output Q3. at If the film is running backwards, there is no pulse at output Q4.

When the film is running forward, the output Q of the second flip-flop 62 then generates a pulse when the potential at the input A1 is equal to "1" and a potential jump from value "0" to value "1" "occurs at input B1 Assumption applies to a forward running movie. According to FIG. 4, this is at time t2 the case. A pulse then occurs at the output of the fourth JK flip-flop 68 when at input A1 the potential is "0" and at input B1 the potential is "1" jumps to the value "0". According to FIG. 4, this is the case at time t4.

Thus, two short pulses occur during a period T of the pulse train 30 which occur when the film is forwarded at the output of the OR gate 71 and be transmitted via the further OR gate 73 to the output Ql. With backwards While the film is running, the two individual impulses occur one after the other, one after the other Period at the output of the first JK flip-flop 60 and at the output of the third JK flip-flop 65 on. These pulses also occur at the output of the OR gate 70 and thus at the Output of the following OR gate 73 on.

When the film is running forward, the RS flip-flop 72 is over the input S controlled, at the rate of the pulse frequency, which is twice as large as the Frequency of the pulse train, while the input R of the film is running backwards RS flip-flops 72 is clocked in the same cycle. When the film is moving forward therefore the potential at output Q2 is "1", while it is at backwards is "0" while the movie is running.

When the film is running fast (forwards or backwards) the R inputs are received of the two flip-flops 51 and 52 from the microcomputer the potential "1", which means that the forward and reverse pulses of the pulse generating circuit 43 suppressed will. The reset inputs are only given when the film is switched to slow speed R of the two flip-flops 51 and 52 has the potential "0" from the microcomputer. This means, that depending on whether forward or reverse is present, from the flip-flop 51 or 52 the potential 11111 reaches the interrupt coding stage 55.

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Claims (14)

Claims Procedure for the correct stopping of a with Film images provided, can be moved forward or backward by a drive device Films, which are provided with markings assigned to one or more film frames is, which are determined and evaluated by a detector device, wherein the detector device at a predetermined distance in front of or behind the optical Axis of the picture stage is arranged, characterized in that the selected Film image by means of a drive device influenced by a control circuit (31 to 40) (5, 7, 11, 8) in high speed either directly in forward motion and / or via the optical Axis is moved backwards to the detector device (13) that at directly film moving forward at the first detection of the selected film frame marking (3) the drive device is switched to fast reverse, which upon detection the selected film image marking (3) in the detector device (13) from the fast Reverse is slowed down and then switched to slow forward, that after renewed recognition of the Filtrbildmarkierung the moving in slow speed Films (1) with the selected marking in the detector device, a film length pulse generator (19) is activated, the pulses of which are stored in a storage device (32 to 34) read in like a shift register and with a pulse comparison value for the distance (a) between the detector device (13) and the optical axis (17) is compared and that, during the slow-speed operation, any further, by the detector device recognized markings are read in and their position is recorded. 2. The method according to claim 1, characterized in that the influencing or regulation of the drive motors (5, 7, 11) of the film reader, the storage and comparing the pulses and influencing the display device (36, 37) takes place in a microcomputer (32, 33, 34) and that an interrupter logic circuit (31), both by the detector device (13) and by the film length pulse generator (19) is influenced when a selected image mark signal (3) is scanned Routine program of the microcomputer (32) interrupts until the in the interrupt logic circuit information contained in the microcomputer is evaluated. 3. The method according to claim 1 or 2, characterized in that according to braking the film from fast rewind and before switching to slow The film moves forwards in slow reverse motion over a specified distance is greater than or equal to the distance between the detector device and the optical axis is. 4. Device for performing the method according to one of the claims 1 to 3, characterized in that the interrupter logic circuit through the film length pulse generator (19) has an influenceable pulse logic circuit (Q1), in the work cycle pulses as well as signals for recognizing the film direction (Q2, Q3, Q4) are generated and that clocked memory stages (46, 47) are also provided which store the picture marker signals and running signals. 5. Apparatus according to claim 4, characterized in that the interrupter logic circuit a Fil mmark ierungs Längen-Messschal device contains, which consists of an up and down counter (48) and a gate circuit (49) whose gate time is determined by the increasing Film marker pulse edge and its associated film marker falling pulse edge is determined and whose clock input is supplied with the working clock pulses. 6. Apparatus according to claim 4 or 5, characterized in that the clocked storage levels are controlled by the falling edge of the pulses will. 7. Device according to one of claims 4 to 6, characterized in that that the clocked memory stages (46, 47), preferably JK flip-flops, with a Priority coding stage (55) are connected, the input signals according to a predetermined Priority codes are supplied to the digital outputs. 8. Device according to one of claims 4 to 7, characterized in that that the output (Q2) of the pulse logic circuit (43), which characterizes the direction of rotation is each connected to the input of a first and second JK flip-flop, whose Clock input can be influenced in each case by the film image marking detector device (13) is. 9. Device according to one of claims 4 to 8, characterized in that that the pulse logic circuit (43) has two control connections to the film length pulse generator circuit (19) which contains two pulse stages, the first of which is a first pulse train and the second provides a phase shifted pulse sfol ge, the phase shift is chosen so that a rising or falling pulse edge of a pulse phase one pulse train lies within the pulse phase of the other pulse train. 10. Apparatus according to claim 9, characterized in that the Phase shift with equally large pulse and zero phase of the two pulse trains 90 "is. 11. Device according to one of claims 4 to 10, characterized in that that the film length pulse generator circuit has four clocked, monostable behavior Has flip-flop stages (60, 62, 65, 68) whose flip-over time is short compared to the temporal phase shift that the inputs of the first two flip-flops (60, 62) directly through the first pulse train, the inputs of the two further flip-flops (60, 62) by the inverted first pulse train, the clock inputs of the first and fourth flip-flop (60, 68) directly through the second pulse train and the clock inputs the second and third flip-flop (62, 65) by the inverted second pulse train being controlled. 12. The apparatus according to claim 11, characterized in that the Flip-flops clocked by the falling edge of the second pulse train will. 13. Apparatus according to claim 11 or 12, characterized in that that the outputs of the first and third flip-flop with a first OR gate (70) and the outputs of the second and fourth flip-flops with a second OR gate (71) are connected that the outputs of both OR gates (70, 71) to another OR gate (73) and a set and reset input of a memory flip-flop (72) are connected and that at the output of the OR gate (73) the counting clock pulses, at the output of the memory flip-flop (72) a static, the film movement direction characteristic potential and at the output of the third or fourth flip-flop (65, 68) short pulses characteristic of the direction of film movement occur. 14. Apparatus according to claim 9, characterized in that the film length pulse generator stage from one with a roller (18) driven by the film, one connected to it, alternately translucent and radial stripes that are opaque to i Disc (20), made of a stationary, otherwise opaque disc (21), which is provided with two cutouts (27, 28), each with radial, alternating translucent and opaque strips are provided, which correspond to those of the rotating disk (20), the strips of one Section opposite the strips of the other section locally around the phase angle, preferably in phases 900, are offset and that each of the two sections is one Fork light barrier (23, 24) is assigned.