Method for supervising the copying of originals in a microfilm camera, and a camera for carrying out the method.

The invention relates to a method for monitoring the filming of templates in a paging device and an exposure station having microfilm camera, the templates are first provided in paging with number sequences and are then made into a film in the exposure station, said on the film for each film image of an original, a Blip is exposed onto and being compared in a comparison device in accordance of the templates with the associated film frames of the documents and in disagreement, an error signal is generated, as well as a microfilm camera for implementing the method.

From DE-PS 32 20 977 a method for disordered filming of documents and an apparatus for performing this method is described. For disordered filming of documents, they are first paged and subsequently made into a film assignment of a blip Impulskodes by Aufbelichten of blip pulses. In the paging a numeric string is set. This sequence of digits includes digits that correspond to the image address of the image on the film. The blip pulses are continuously registered, summed and buffered. During the exposure of the film with the respective document corresponding to the respective image address digits of the digit sequence with the blip pulses of the film image of the document are compared for agreement.

These measures serve to ensure that those mistakes are to be avoided, which may occur in the pagination and subsequent film adaptation. These errors must be eliminated by creating a unique assignment of the document address and the film image address. This means that a definite association between template and associated film image of the original is created such that the blip is only compared to a specimen in a comparison process with the associated address signal of the document when the document in question is located in the exposure station for filming.

For non-negligible amount of time between the paging and the exposure station the number of image address of Paginier digits must follow to be delayed accordingly to meet this condition. Therefore, a synchrony between the document and film image of the document in terms of the assigned numbers and the associated blips produced.

This adaptation process and the associated Microfilm camera have the disadvantage that on the one hand the comparison operation between the digits of the digit sequence and the blip pulses for each specimen is performed individually and that, moreover, this comparison process is delayed individually for each individual document. While simplifying the Paginierziffernfolge and Blip-digit sequence slip as monitored for possible errors with greater certainty. However, the serious disadvantage connected thereto, that the passage of each document can only take place if the associated Paginierziffernfolge have been compared with the corresponding blip digit sequence in the preceding document to the corresponding delay and the document in question is currently in the exposure station. This in turn has the disadvantage that may not successively through in uninterrupted succession several documents simultaneously in succession on the route between the paging and the exposure station. Therefore this known method and the associated microfilm camera for performing the method have the great disadvantage that no high-speed films may be made of documents. It is also disadvantageous that a delay circuit is necessary to ensure for each individual document that the comparison between the numerical sequence of this document and the blip signal in the exposure station only takes place when the document is currently in the exposure station.

In contrast now, the invention is based on the object to provide a method for monitoring the filming of originals of the aforementioned type and a microfilm camera for performing the method which or which permits smooth and rapid adaptation of any templates being in favor of the film speed a template comparison of the original address and the frame address of the template is to be dispensed. Possibly during the passage of the originals by the paging and subsequently occurring through exposure station errors are not to be already signaled during their occurrence. According to a quick run large stack of transported in uninterrupted sequence templates, several of which are successively transported between the paging and the exposure station, to dispense with you to trace every single template.

This object is achieved on the one hand by the characterizing features of claim 1 and by the characterizing features of claim 7.

Advantageously, it is possible that control of the match occurs in the comparison means respectively after storing the predetermined number of coded document signals and Blipsignale wherein in establishing conformity, the zugehö engined latches are reset, and then in the group of templates to be reloaded with signals. Occurs when pagination and / or during the subsequent film formation in the exposure station fails, then this is indeed detected only in the subsequent comparison operation after the predetermined number of templates. This means that the single document is not tracked in time. However, there is the advantage that a high-speed film can be carried out. A possible error is detected later than in the comparison process. Advantageously, each number range and each associated blip type or each blip type combination is in correspondingly coded waveform.

According to a further embodiment, at least some of the range of numbers and the associated blip types are initiated by the templates ahead prudent tax card, which takes place after passage of a control board of the comparison for agreement.

Advantageously, the numerical sequence of number range and the associated blip due to the blip type is original as stored in ASCII-encoded form as an ASCII character on each template on the paging device. Only at the end of the film adaptation of a document stack or a predetermined number of templates is a package of ASCII characters in the buffer memory and a second set of ASCII characters in the second latch on equality of the ASCII character type on the one hand and the ASCII character number in the other side compared.

Both in case of equality of the ASCII character type and ASCII character number in the two latches is stated that their allocation to the individual microfilm images is correct. To control the assignment of digits of the digit sequence of Paginierers and the blip numbers each template is deliberately avoided in favor of the film speed. The given herein low uncertainty is taken into account in order to film the originals at high speed with no waiting times between the individual templates. Possibly errors are reported at the end of the filming of a stack or pile part, in which case the film version of the stack or stacking member must be repeated. Because of the large film speed but this is acceptable in the rarity of occurring disorders compared to the total amount possible adaptation; all the more so as a user can decide case by case whether it needs to actually carry out a new film or so desires.

Further advantageous embodiments can be found in the dependent claims.

In the following the invention is described with reference to an embodiment shown in the figures 1 and 2. FIG. Show it:<ul><li>Figure 1 is a schematic illustration of a microfilm camera and </li><li>FIG. 2a to 2d, a flowchart illustrating the operation of the microfilm camera according Figure 1.</li></ul> A microfilm camera according to Figure 1, seen from the outside, three mechanical equipment modules 1, 4 and 13 whose equipment parts are electrically driven and electronically controlled.

The a user initially lying document handler 1 is the collection of templates mikrozuverfilmenden 2 and includes an input shaft 1a for the templates 2 and at least one pair of transport rollers 3. In place of the input shaft and a stacking device could occur through which will be fed automatically. The pair of transport rollers 3 can be driven when the device is by means of a main switch, not shown, by a drive 30th The drive 30 is connected to an electronic control device 11, which will be described in more detail below and switched on and off from there. From the document handler 1 is an input template 2 is transported to the second assembly when the paging device 4, which may comprise 5 at microfilm cameras for high throughput speeds, an ink injection molding. However, other known, electronically controlled printing units 5 are suitable in principle. For repair purposes the paging device is accessible through a lid 4a. In the paging device 4, the first continuous horizontal templates 2 are identified by means of the printing unit 5, for example, auto matically successively printed with number sequences. For the transport of the templates 2 through the paging device 4 an endless drag strip 6 and this provided opposite the transport rollers 7, wherein the templates on the towing strip 6 rest. The drive 8 for the towing strip 6 in turn is connected to the control device eleventh In addition, a control device 9 is connected to the moving speed of the templates by the paging device 4 with the control device eleventh

From the paging device 4, 5, the originals are 2 to the marking in the third device package 13 is transported by guide gaps between the device package. This instrument package 13, the receiving part, contains the actual, non-illustrated microfilm recording camera with lens and film and film drive. Of these, only the exposure station 17 for the templates 2 indicated schematically, because it does not depend on the specific camera configuration for the present invention. The exposure station 17 also includes an exposure device for blips. Here too tow bands 14, 15 are used with pressure rollers 16 and optionally disposed therebetween fins transportation of the templates 2. The drive 31 for the towing strip 14 is also connected to the control device eleventh In this case the entraining belt 14 is deflected upward by 90 ° before the exposure station 17th Prior to the exposure station 17 is a further control device 19 for the speed of a continuous template 2 is placed and connected with the control device eleventh The two control devices 9 and 19 are used together to synchronize the transport speed in the paging device 4 and the receiving part 13. Also, the conveyor belt 15 is deflected by 90 ° so that a scanned document 2 eventually turned 180 ° from an output gap 13a of the receiving part output 13 and can be collected on a collecting panel 13b. Also, the receiving part 13 can more cover or removable wall parts have through which camera and transport or monitoring parts for adjustment or repair are accessible. The camera is designed in the present example so that a template 2 is further transported through the exposure station 17th It would also be possible, in each case at its current size to introduce the original 17 in the exposure station and to stop briefly there for illumination.

Now it is already customary to combine originals of different roles to stack parts, wherein several different stack parts can be layered to form a stack of originals. The different areas of responsibility assigned stack parts get assigned different Hauptkodeziffern, which then for example, the consecutive numbering is subordinated by the printer 5 from the printer. 5 For example, could Personnel matters concerned batch parts, the original stacking parts in question Hauptkodeziffer 1 or accounting the Hauptkodeziffer 5 obtained subregions of these areas a certain second Nebenkodeziffer, for example 1.3 or 5.2. If then, for example, when a stack portion, wherein the main and Nebenkodeziffer should receive 52, filmed already 3540 templates, so could another to verfilmender stack part the main and Nebenkodeziffer 5.2 and consecutively the numbers 523 541 ff. get printed. The main and Nebenkodes can be entered before the start of the stack part by hand. It is also customary to place before a stack part a control card having a corresponding bar code and is automatically scanned by the paging device 4 and through which the master and / or Nebenkode is automatically set to the printer. The starting number for the consecutive Vorlagennumerierung can be inputted manually on a keyboard 12a. Main and / or Nebenkodes be referred to as the number ranges.

Moreover, it is common aufzubelichten the individual microimages in the illumination of a template 2 a blip. The amounts corresponding to consecutive image numbers blips are equal to each other. However, when a new number range starts, this is on the film by another Bliptyp (eg longer) in. An another Bliptyp manually or associated with control card receiving area is referred to as Blipbereich. It is daber necessary, the start of another stack part either by hand by means of a keyboard 12a for the paging device 4 and input keyboard 12b for the exposure device by hand or by an appropriate control map in both the paging device 4 before the printer 5 as well as on the receiving part 13 before scan exposure station 17th Moreover, it may happen that you want to film stack of documents without being allocated to specific fields of ver and number only continuously. Also carries out a check of the individual templates for the continuous automatic creation of the sequence of digits in the paging device 4, 5 is necessary.

For scanning the originals 2 is therefore the printer 5 and the exposure station 17 each a scanner 10a and 18a, for example a light barrier for the recognition of the individual templates per se and a scanner 10b or 18b, for example, a bar code reader for reading the bar code on the control boards upstream. The photo-interrupters 10a and 18a on the one hand and the bar code reader 10b and 18b on the other hand are equal to each other. With such an arrangement, it is possible, on the other hand assign the number ranges of the printer 5 a hand and Blipbereiche on the film side according to the different parts stack. This arrangement in itself is not however allowed to reach the proper passage passing from the paging device 4 templates or control cards by the receiving part 13 and its correct detection for controlling the blip-recording in association with the paging device and then eg faults (printing of a new triggering off point range without a new Aufbelichtung Blipbereichs or snagging a template or failure of a drive, for example by excessive slip of a drag strip) the entire device or at least one alarm signal (visual or audible signal). It could therefore come together not matching Nummern- and Blipbereichen Templates and microfilm or document jams in the device and even the destruction of originals prior to filming. This disadvantage will now be avoided with the present invention in the manner described in detail below. One difficulty consisted in the fact that one and the same document or control card scanning device 10a, 10b, 18a, 18b happens to a temporal distance. It must therefore be ensured that both scanning the same document and not two different templates to compare and evaluate.

In order to achieve in an arrangement according to the embodiment of that shown Figure 1 in each of these fast moving Templates 2 or control cards which time different pass through the two scanning devices 10a, 10b, 18a, 18b without confusion with one of the leading end or our successors templates the control device 11 is designed in a special way and this switched a specially trained comparator 20th Thus, the control device 11 is a Paginiersteuereinheit 11a, a Paginierauswertschaltung 11b, a camera control unit 11c and a Kameraauswertschaltung 11d. The comparator 20 includes a comparing means 20b which is connected to a buffer memory 20a for the paging device and a latch 20c for the camera. The comparator 20b is connected to the Paginierauswertschaltung 11b and the Kameraauswertschaltung 11d, and stores the obtained therefrom values ​​in sequence in the respective latches 20a and 20c in order from there after passage of a document stack or a predetermined, fixed number of templates retrieve and to compare the presence of each of the same values ​​from the paging device and from the camera. With the Paginierersteuereinheit 11d of towing capstan 8 of Paginierers 4, the printer 5 and the speed control apparatus 9 and the Paginierertastatur 12a are connected. With the camera control unit 11c the transport means in the receiving part 13, the actual camera, together with the film transport, the speed control device 19 and the camera keyboard 12b are connected. The keyboards 12a, 12b may have illuminated displays for Paginier- or camera function while at the same time. The Paginierauswertschaltung 11b and 11d are connected to the Kameraauswertschaltung Paginierabtasteinrichtung, namely the photointerrupter 10a and the barcode reader 10b, or the Kameraabtasteinrichtung, namely the photointerrupter 18a and the bar code reader 18b. In addition, each of the Paginierersteuereinheit 11a and 11b Paginiererauswertschaltung the one hand, and the camera control unit 11c and 11d Kameraauswertschaltung the other part and the two control units 11a and 11c verbundden each other.

The operation of the embodiment according to the figure is now as follows: As erläutet, there are for the different ranges of numbers of Paginierers 4, 5 and the associated Blipbereiche the camera 17 each have a control board with a defined and the evaluation circuits 11b, 11d known barcode. Usual currently two control cards that comply with a long and a medium-long blip on the film, said Hauptkodeziffer or Nebenkodeziffer each corresponding control board will be increased on the printer to the in 1. Should one now a staple part above specified control card to the first Paginiererabtasteinrichtung 10a, then this reports the passage of a submission to the Paginiererauswertschaltung 11b without recognizing the existence of a control card. Only the Paginiererbarcodeleser 10b reads the bar code on the control board and reports its content also to the Paginiererauswertschaltung 11b. From this, the message is in the form of a signal, namely the corresponding called. ASCII character, forwarded to the control unit 11a, which lead to a continuation of the transport of the control board in the paging device 4 to run and the output of the last entered before the control card template from cause the receiving part. 13 Then, the control board is transported to the receiving part 13, the first Kameraabtasteinrichtung 18a again without detection of the control card and the camera bar code reader 18b detects the passage of the control card to run a template and the bar code reading on the control board. The Kameraabtasteinrichtungen 18a, 18b register their scanning, namely the corresponding ASCII characters, the Kameraauswertschaltung 11d. Thus, with proper run of the control board in the two evaluation circuits 11b and 11d are the same signals (ASCII character) received. These are in order of occurrence forwarded to the comparator 20b of the comparator 20 and from there successively in time in the associated buffer 20a or 20c. After the presence of the stored, totally same signals (ASCII characters) in two latches 20a, 20c, so after a predetermined waiting period, they are called by the comparison means 20b again and compared. Do the stored ASCII characters each, this is reported from the comparator 20b in the control units 11a and 11c, so that all Paginierer- and camera functions for the exposure of the templates of each stack member continue.

The control device 11 with its circuit parts 11a to 11d and the comparator 20 have but also during the rest of the run of a control card preceding templates had followed another, previously percolated control card, compared whether same ASCII characters from the paging device when Paginiererzwischenspeicher 20a and of the camera are received at the camera latch 20c. Absence of in each case after a predetermined number of filmed templates (for example, after ten or twenty-five templates) the mutually corresponding ASCII characters in the two latches 20a, 20c, so that one or more signals too little for retrieval and comparison in the comparator means 20b in a buffer are available, so the comparison means 20b reports this absence to the Paginierer- and the camera control unit 11a and 11c. This effect is now depending on the configuration, the lighting of the alarm light signals at the keyboards 12a, 12b or solve acoustic signals or switch immediately and directly the Paginierer- and camera drive means from, so that the number ranges not appropriate Blipbereiche in the receiving part 13 and in Pagi Nierer 4 at the further adaptation can be avoided either by switching off the device manually or by automatic shutdown of the unit. The same process an alarm or automatic shutdown of the device would also occur if a new input control map as would be only through the Paginiererbarcodeleser 10b legible and camera barcode reader 18b for some reason could not read the bar code on the control card or vice versa, so that then the control board following templates mismatched Nummern- and Blipbereiche would receive.

It is now, as already mentioned, possible to use the device alternatively using control cards or without control boards under operation of the keyboards 12a, 12b or at all without the barcode reader 10b and 18b under exclusive use of keyboards 12a, 12b. Should this not be initiated in the film version of stack parts with a new Nummern- and Blipbereich, the entries must always be carried out on both keyboards 12a and 12b in each corresponding manner. If a new number range opened, while no corresponding Blipbereich is initiated on the camera keyboard 12b for example, on the Paginierertastatur 12a, so are the ASCII characters via the control units 11a and 11c at the input of the signal from the sensing devices 10a and 18a to the evaluation circuits 11b and 11d received and stored in the associated latch 20a and 20c, respectively, different. Consequently, the demand of different signals (ASCII character) be processing in the latches 20a and 20c through the Vergleichseinrich 20b no match is found and an alarm and / or disconnection of the device. The alarm or automatic shutdown of the unit can be reversed only after eliminating the cause of the damage, so that only the filming can continue.

It can be seen that the control device for the proper passage of the templates 2 and / or upstream control card or for a proper allocation of Nummern- and Blipbereichen templated 2 and microfilm through a microfilm camera with the paging device described is applicable in many ways, namely completely automatic drive, with partial or exclusive control of the paging device and camera on keyboards, with automatic feeding of originals template stacks or stack parts or even at feeding of originals by hand. In the latter case, only the feeding of the originals and / or control cards takes place much more slowly. But all these modes have in common that a particular template to the Paginiererabtasteinrichtung 10a and / or 10b and the Kameraabtasteinrichtung 18a and / or 18b the same ASCII character triggers and both ASCII characters via the associated evaluation circuits 11b and 11d in the associated latch 20a and 20c stored. The comparison is made in the comparing circuit 20b in each case after passage of a control map, or by passage of a document stack or after passage of a stack portion of a predetermined number of templates, wherein the original feeding is switched off for paging a short period and a constant time (about 2.5 sec.) waiting until the control card or the last document of the stack or the stack portion has passed the exposure station. each Are both same ASCII characters by a control card or by equal numbers of templates within a predetermined limited stack portion (for example eight or ten or twenty templates) are present, the operation of the device continues. If from the comparator 20b, however unequal ASCII characters (beispeilsweise also unequal signal numbers) in the two latches analyzed 20a and 20c, so triggering a warning to the user and / or the auto power off takes place until the situation is rectified or another cause of discrepancy, for example, in a non-corresponding actuation of the two keyboards 12a and 12b may be. The stack of originals parts that have already gone through and have caused the error message that can be entered and filmed in the device again.

In practice, it is expedient, depending ASCII character type M or L or K (or 0 for intended missing blips) provide a separate counter in the respective evaluation circuit 11b and 11d respectively in the respective latch 20a, 20c, so that a total of six (or eight) meters are available.

Of particular importance is that the comparator 20 can not be compared to the paging on 5 printed on the templates 2 numbers combinations with the number combinations that are associated with a Blipfolge on a template corresponding micro image. This makes it possible to work on the paging device and the Blipaufbelichtungseinrichtung with different numbers and combinations of numbers. This can be a user-desired, specific, factual sort of advantage. The stack-wise comparison of reported by the paging device and the Blipaufbelichtungseinrichtung ASCII characters (instead of the known template as compared digit combinations) also the filming speed is very considerably increased.

Hereinafter 2a-2d, the operational flow is described in detail by the flow chart of FIGS.

According to Figure 2a, the Microfilm camera is started at step 40th In step 41, the comparing means compares the electronics 20b for the camera, namely the camera control unit and camera with the evaluation circuit Paginier control unit and the evaluation circuit Paginier 11a, 11b. If this comparison is successful, in step 42 of the drive 30 is turned on for the document feeder. 1 In step 43, the comparison rate is set, ie the number of a stack of constituent documents, to be performed after each of the comparison. After execution of steps 40 to 43, the reception routine is started in step 44th

As already mentioned in connection with Figure 1, there are four ASCII character types, namely L, M, K and O-mark, this ASCII character corresponding both in four corre sponding meters of Paginier latch 20a and in four counters of the camera latch 20c are counted. The L-character and the M characters are generated by corresponding control cards that are sent ahead to templates in the paging. The K-character is also initiated by an embodiment of a control card, in which case more K-characters are generated by the template itself. According to Figure 2b, 44 is ready to receive in continuation of Figure 2a in step. At step 45 it is checked whether an L-character exists. If this is the case, then in step 46, the L-character is stored in ASCII coded form in the cache of the Paginierers 20a.

If no L-mark is detected, it is checked in step 47 whether an M character is shown in the Paginier evaluation circuit 11b. If this is the case, then this in Scritt 48 associated in the cache of the Paginierers 20a is entered.

When introduced at step 44 receiving routine subsequent a comparison routine is started at the steps 46 and 48 in step 49th

If it is determined no M characters at step 47, it is checked at step 50 whether a K-mark was obtained from the Paginier evaluation circuit 11b. If this is the case, then the K-character, in step 51 in the assigned buffer memory 20a of the Paginierers stored. Subsequently, it is checked at step 52 in the comparator means 20b whether the preset rate comparison is reached or not. If this is the case, the comparison routine is initiated at step 49, while in the other case is switched back to step 44th

If it is determined no K-mark in step 50, it is checked at step 53 whether the Paginier evaluation circuit 11b, an O-mark has been found or not. If an O-mark is detected, it is stored at step 54 in the associated latch 20a of Paginierers.

If no O-mark is detected, it is checked in the subsequent step 55 whether an L-character of the camera-evaluation was obtained 11d or not. If this is the case, this L-character is stored at step 56 in the assigned L-latch 20c of the camera.

If no L-mark is detected, it is checked in step 57 whether an M character was obtained by the camera evaluation 11d or not. If an M-mark is detected, it is stored at step 58 in the M latch 20c of the camera. Following the steps 56 and 58 with 49 designated comparison routine (Figure 2c) is started.

If no M-character determined at step 57, it is checked in a subsequent step 59 whether a K-character of the camera-evaluation was obtained 11d or not. If this is the case, then this is stored at step 60 in the K-latch 20c of the camera.

If there is no K-mark has been found, it is checked at step 61 whether an O-mark of the camera-evaluation was obtained 11d or not. If this is the case, then this is stored at step 62 in the O-buffer 20c of the camera. Subsequent to the steps 60 and 62 is checked at step 63 whether the preset rate comparison has been reached or not. If this is the case, then transferred to the comparison routine 49, while switching back in the other case at every 44th

If no O-character determined at step 61, it is checked at step 64 whether since the last message of a character for a predetermined time (time out) has elapsed or not. When this time has elapsed, it is switched to the comparison routine 49, while in the other case is switched back to the receiving step 44th

The individual test steps carried out in time with a not shown clock oscillator.

According to Figure 2c, the comparison routine is as follows. As noted in connection with Figure 2b, the comparison routine is started at step 49th Subsequently, the drive 30 of the input device 1 is turned off in step 65th In the following step 66, it is determined whether a predetermined clearance time of eg 2.5 sec. Is reached or not. If it is not achieved, the test step 66 is repeated to the beat of the clock oscillator. Then, when the Ausräumzeit is reached, it is checked by the comparison means 20b in step 67 whether the number of the L-character in the L-latch 20a of the Paginierers is the number of L character in L-buffer of the camera is equal or not. If inequality is detected, this is interpreted as L-error in step 68th If equality is detected, it is checked in a subsequent step 69 whether the number of M characters in M-latch 20a of Paginierers is equal to the number of M characters in M-latch 20c of the camera. If this is not the case, then this is registered as M-error at step 70th If equality is detected, it is then checked at step 71 whether the number of K-mark in K-latch 20a of Paginierers the number of K-mark in K-buffer 20c is equal to the camera. If there is no equality, as this is registered in step 72 as K-error. Is there a tie, then it is determined at step 73 whether the number of O-mark in zero-latch 20a of Paginierers equals the number of O-mark in zero latch 20c of the camera. If no equality is present, this is registered in step 74 as an O-error. Is there a tie, is made in the following step 75, that the L, M, K and O buffer 20a of Paginierers and the L, M, K and O buffer 20c of the camera are cleared. In subsequent step 76, the evaluation routine is started.

According to Figure 2d following the step 76, the evaluation routine at step 77 to check whether an error was present or not. If an error is detected, at step 78, this error is reported.

In subsequent step 79 it is checked whether an error correction has been completed or not. If the error correction has been completed successfully, the error is cleared at step 80th

After the fault is cleared at step 80 of the drive 30 is turned on again at step 81st An activation of the actuator 30 is also displayed if no error has been detected at step 77th Following the step 81 is switched back to step 44 (Figure 2b).

This means that for each comparison operation, the comparison routine, all intermediate memory for the L-character, M characters K characters and O characters are compared in their Zähnlinhalte regardless of whether a L, M or K-mark is present or not. In nichtvorhandenem L, M or K-sign the O-mark must be recognized at faultless operation. In this way, it becomes possible to determine the presence or absence of the mark in the associated cache. The fact that all latches are queried when compared, in a stack of documents of any error after the aforementioned clearance time is determined.