JPS5893045A - Method and device for copying of microfilm information of information retrieving device - Google Patents

Abstract

PURPOSE:To copy a microfilm successively from the end to the head, by putting a mark to the end frame of a single unit of information group of the microfilm and then stopping the microfilm after detecting its end. CONSTITUTION:The 1st mark MK1 and the 2nd mark MK2 are put at the upper part and the lower part respectively for each frame of each information group KG which forms a unit. These two marks are read by the 1st and 2nd mark detectors 67 and 68 respectively. The mark MK1 is put to the end frames A2, B3 and C4 of each group KG; the marks MK1 and MK2 are put to the intermediate frames B2 and C3-C4; and the mark MK2 is put to the head frames A1, B1 and C1 respectively for the purpose of distinction. Thus the information is successively copied until the head frame is detected after detecting the end frame of a desired group KG. In such a way, a copy is obtained with the pages arranged properly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying method and a copying apparatus for copying information recorded on microfilm in an information retrieval device such as a reader printer.

Conventionally, negative or positive microfilm as shown in FIG. 1 has been used in information retrieval devices such as reader printers.

This microfilm is connected to a starting end leader tape 2 that is hooked to a take-up reel (not shown) and a trailing end leader tape 3 that is hooked to a reel in the cartridge.
A black start mark Me (which becomes a reset mark when returning) and an end mark M are attached to the connection parts, respectively.

And this microfilm 1 has a start mark M
Between s and end marks ME and 1, there are a number of pieces K on which information is photographed and recorded at regular intervals in the longitudinal direction, and piece marks MK are attached in a row corresponding to each piece K. At the same time, the solvable K records one unit (1!+ minutes) of information group.
First piece mark (item mark) Mc corresponding to each first piece of G
are attached in a separate row from the piece marks MK.

Note that the solvable KG generally consists of a plurality of pieces, but may be made up of one piece. In addition, in FIG. 1, A11A21B1 to B5.
C'1 to C4 indicate information recorded on each piece K.

The information retrieval device detects the frame mark MK and the first frame mark Me of the microfilm 1, and performs a frame search (a search for each frame) and an item search (a search for each solvable frame). , it is now possible to copy the information of the required pieces.

By the way, this microfilm 1 contains the occipital piece (referring to the last piece) of each resolvable KG, for example, information A 2 in FIG.
:+B 3* There is no display indicating the piece K on which C4 was recorded.

Therefore, in the information retrieval device, one unit of information group of the microfilm 1, for example, information B+ p B2 rB
3, in order to eliminate wasted time in aligning the pages after copying, search for the next possible first frame, the frame in which information C1 is recorded, using the first frame mark MO, and then select the - frame. Then, the information was copied in the order of B5+, B2, and B+.

However, searching for the first frame of the solvable frame next to the solvable frame to be copied and moving back one frame causes problems such as wasted time and poor operability.

This invention has been made in view of the above points, and aims to shorten the time required for copying and improve operability when copying a unit of information recorded on microfilm in an information retrieval device. purpose.

Therefore, the method for copying microfilm information in the information retrieval device according to the first invention is such that the first piece mark and the second
Place both or one of the piece marks in the 1st. Second
When copying a desired information group on the microfilm using a microfilm in which the frame marks are arranged in different rows in the longitudinal direction so that each frame can be distinguished, Based on the detection results of both the first piece mark and the second piece mark, the microfilm was fed in the direction in which the possible occipital piece on which information to be copied was recorded was detected, and the occipital piece was detected. By stopping feeding at the same time and starting copying from the last piece of the solvable piece, after detecting the first piece of the solvable piece next to the solvable piece in which the information to be copied is recorded.
This eliminates the time loss caused by starting copying after returning a frame, and the third invention provides a copying apparatus capable of carrying out this method.

In addition to the first invention, a method for copying microfilm information in an information retrieval device according to a second invention includes the following steps: Returning the microfilm one frame at a time until the first solvable frame is detected based on the detection result of both or one of the first frame mark and the second frame mark, and then copying each frame; By terminating the copying operation upon completion of copying the first frame, a copy of the desired information group with the page order zero is automatically obtained, and the fourth invention implements the method. The present invention provides a copying apparatus that does the following:

Embodiments of the present invention will be described below with reference to FIG. 2 and subsequent figures of the accompanying drawings.

FIG. 2 is an explanatory diagram showing an example of a microfilm used to carry out the present invention.

Note that portions corresponding to those in FIG. 1 are designated by the same reference numerals, and explanations of those portions will be omitted.

This microfilm 11 has both a first frame mark MK1 and a second frame mark MK2 corresponding to the first frame, which is the first frame of each decipherable K-G recording one unit of information group. Only the second piece mark MK2 corresponds to the middle piece that is neither the first piece nor the occipital piece of each solvable KG, and the first piece mark Mx+ corresponds to the occipital piece that is the last piece of each solvable KG. The cape marks MK1 + MK2 are arranged at different positions in the width direction so that the first and second cape marks MK1 + MK2 form mutually different rows in the longitudinal direction of the microfilm 11. Note that the microfilm 11 is
It may be a positive film.

Figures 3, 4 and 5 are a second diagram illustrating other different examples of microfilms used to carry out this invention.
It is an explanatory diagram similar to the figure.

The microfilm shown in Fig. 3 has only a second piece mark MK2 corresponding to the first piece of each resolvable KG, and a first piece mark MKI and a second piece mark MK corresponding to intermediate pieces.
2, the first piece mark, M, corresponding to the occipital piece.
Only Kl is attached to each.

The microfilm shown in Fig. 4 has only the first piece mark MK+ corresponding to the first piece of each resolvable KG, only the second piece mark MK2 corresponding to the middle piece, and only the second piece mark MK2 corresponding to the back piece. 1st piece mark MK+ and 2nd piece mark MK, 2
Both are attached respectively.

The microfilm in Fig. 5 has a first piece mark MK+ and a second piece mark MK opposite to the first piece of each resolvable KG.
2 to the first piece marker MKl corresponding to the intermediate piece.
A second piece mark MK2 is attached corresponding to the 1:: occipital piece.

Although not shown, only the first frame mark MKj is attached to the first frame of each resolvable KG on the microfilm, and the first frame mark MK+ and the second frame mark M are attached to the intermediate frames.
K2 both to the second piece mark MK corresponding to the occipital piece.
It is also possible to attach only 2.

Also, a second piece mark M is displayed corresponding to the first piece of each solvable KG.
K2, a first piece mark MK1 corresponding to the middle piece, and both the first piece mark MK1 and the second piece mark MK2 corresponding to the occipital piece.

In this way, both or one of the first piece mark MK1 and the second piece mark MK2 is attached corresponding to the first piece, middle piece, and back piece of the microfilm 11. By detecting the presence or absence of the first piece mark MK1 and the second border mark MK2, it is possible to detect whether the piece in question is the first piece, the middle piece, or the last piece among the pieces that can be solved.

Therefore, the method of copying a microfilm jōshin in an information retrieval device according to the present invention uses a microfilm that can detect not only the first frame and middle frame but also the back frame to copy a desired information group. At this time, the microfilm 11 is fed in the direction in which the occipital piece of the resolvable KG on which the information to be copied is recorded is detected, that is, in the return direction as shown in FIG. 2, and when the occipital piece is detected, the feeding is stopped. Then, copying starts immediately from that possible occipital piece.

Thereby, it is possible to eliminate the time loss caused by starting copying by going back one frame from the next solvable first frame, as in the conventional case.

Furthermore, after the start of copying, the microfilm 11 is moved back one frame at a time until the first resolvable frame is detected, and each frame is copied, and the copying operation is stopped when the first frame is completed. A copy of the information group with the same page order is automatically obtained.

Next, a league printer, which is an information retrieval device equipped with a copying apparatus that implements the above-described copying method according to the present invention, will be described with reference to FIGS. 6 and subsequent figures.

FIG. 6 is a perspective view showing the external appearance of the reader printer.

This league printer has a screen/12. Film drive unit 16 for searching microfilm. An operation panel 14 and a copy receiver 15 are arranged.

As shown in FIG. 7, the film drive unit 16 includes an image rotation dial 17. Focus GT dial 181 Manual feed dial 19. Image position adjustment dial 20. A film cartridge 21 and a warning lamp 22 are arranged.

Further, various switches, operation keys, operation dials, display lamps, etc. are arranged on the operation panel 14, as shown in FIG.

In other words, 24 is a power switch that turns on and off the power of the entire machine, 25 is a copy switch that performs copying operations, 26 is a playing card that lights up when the photosensitive paper runs out, and 27.28 is a playing card that lights up when the photosensitive paper runs out. 29 is a toner lamp that lights up when the toner runs out, and 30 is a solvent lamp that lights up when the solvent runs out.

31 is a +1 frame key for advancing the microfilm frame by one frame, 32 is an 11 frame key for returning one frame, 63 is a search key for issuing a search command signal for searching by film number, and 34 is a film key. Stop key for stopping movement and copying operations, 35 is a numeric indicator 44
It is a clear key that clears the numbers displayed on the screen.

36 is an internal RAM of the microcomputer (not shown)
A preset key is used to set the number entered using the numeric keypad 37 in the frame or counter of the item, 37 is a numeric keypad used as a number setting means to preset the number you want to search, and 38 is a rewind key to rewind the film. ,
39 is the +1 item key to advance the film by one item, 40 is the 11 item key to return the film by one item, and 41 is the manual dial to manually advance or return the film. ::1゜42 is a copy density dial to adjust the copy density, 4
3 is a copy number dial for setting the number of copies, 44
is a numerical display consisting of 4 digits and 7 segment LEDs.

Reference numeral 45 denotes a one-item copy switch, which is turned on to turn on the copy switch 5 when copying an item (copying one unit of data).

That is, the copy switches 25 and 45 constitute copy start command means for commanding the start of a copy operation when copying one unit of information group.

FIG. 9 is a block diagram showing the configuration of a copying means for projecting microfilm by this league printer and copying information recorded on the microfilm.

In the same figure, the frame of the microfilm 11 held down by the pressure plate 49 on the film guide 48 is
The light passes through the condenser lens 51, passes through the projection lens 52, is reflected by the first mirror 53, and is projected from the second mirror 54 onto the screen 12. This is the state in which a normal microfilm 11 is inserted and images are being projected.

Now, if the copy switch 25 in FIG. 8 is pressed, the drive motor (not shown) of the photosensitive paper conveyance system starts to rotate, the mirror clutch 56 is turned on, the mirror cam 57 rotates, and the second mirror 54 to the position indicated by the virtual line. After the movement, the mirror clutch 56 is turned off.

During this time, the roll of photosensitive paper 58 is started and the cutter 5
9 to a certain length, charged by a charging section 60, and exposed surface 62 by a vacuum belt 61.
reach the top.

Furthermore, when the copy switch 25 is pressed, the lamp 50 that was irradiating the microfilm 11 at this point is turned off. Then, when the photosensitive paper 58 reaches the exposure surface 62, it is temporarily stopped, and the lamp 50 is turned on again to perform static exposure.

When the exposure for a certain period of time is completed, the lamp 5-
0 goes out, and the photosensitive paper 58 moves again toward the developing section 63. The photosensitive paper 58 that has entered the developing section 63 is developed with a developer, dried in a drying section 64, and then conveyed to the copy tray 15. Furthermore, when the '1 exposure is completed, the mirror clutch 56
is turned on, and the second mirror 54 returns to its original position.

65 is a reflecting plate that reflects the light emitted from the lamp 5o toward the condenser lens 51.

FIG. 10 is a schematic perspective view showing the configuration of a portion for detecting the first and second (7) frame marks MHIMK2 of the microfilm.

In the same figure, the first frame mark detector 67 and the second frame mark detector 68 are each equipped with a light receiving element such as a photodiode on the lower surface thereof, and due to changes in the incident light cover due to the light emitted from the lamp 5o, The presence or absence of the first frame mark R4x+ and the second frame' mark MK2 on the microfilm 11 is detected.

FIG. 11 is a block diagram of an item search circuit for searching the microfilm shown in FIG. 2.

In the figure, each time the first frame mark MKI and the second frame mark MK2 of the microfilm 11 are detected from the first frame mark detector 67 and the second frame mark detector 68 of FIG. The first frame mark signal SKI and the second frame mark signal SK2 at a high level of 1H' are outputted from an AND circuit 69 which is a leading frame detection means.
Enter.

This AND circuit 69 is connected to the first . Second piece mark signal S
When both KI + SK2 are 'H9, that is, the first. Both the second frame mark detectors 67 and 66 are connected to the first frame mark detectors 67 and 66 on the microfilm 11. 2nd (7) piece-v-ri MKI
, MK2 is detected, the first frame detection signal Sc which becomes high level 1H" is outputted to the counting circuit 7°.

The counting circuit 70 counts the leading frame detection signal Sc from the AND circuit 69 and outputs the counted value to the subtraction circuit 71.

The subtracting circuit 71 inputs the count value P from the counting circuit 70 and a desired solvable leading frame number Q set by -37 in the numeric keypad of FIG.

Then, this subtraction circuit 71 performs the calculation of Q-P □;h and determines whether the calculation result □ is positive or negative, and Q-P=! 1
While it is i-0, the driving signal SV corresponding to the numerical value as the calculation result and the determination result is outputted to the forward/reverse switch 73 via the D/A converter 72.

This forward/reverse switch 73 is a drive unit that rotates a film feed roller (not shown) constituting a film feed means provided inside the film drive unit 13 in FIG. By switching the rotation direction of the motor 74, the film feeding direction is switched.

The drive station 74 receives a drive signal Sv from the subtraction circuit 71.
While the drive signal SV is being outputted, it rotates in the rotational direction according to the switching result of the forward/reverse switch 73, and stops when the drive signal SV is no longer output from the subtraction circuit 71.

Therefore, the microfilm 11 is fed until the first frame of the desired decipherable number set using the numeric keypad 37 in FIG. Second
The piece mark detectors 67 and 68 respectively detect the first piece mark MK.
+ and the second piece mark MK2 are detected, the microfilm 11 stops running.

As a result, the desired decipherable first frame of the microfilm 11 is projected onto the frame +)-y12 in FIG. 6 or 9.

FIG. 12 shows the first piece mark MK, as shown in FIG.
FIG. 3 is a block diagram showing an example of a print control circuit when using a microfilm to which a second frame mark MK2 is attached.

In the figure, a copy switch 45 and a copy switch 2 for one copy of a copy start command circuit 75 which is a copy start command means are shown.
The occipital frame detects the high level 1H' copy command signal SP output from the AND circuit 76 when 5 is pressed, and the microfilm 11 is moved in the feeding direction shown in FIG. 2 (the direction in which the occipital frame is detected). It is input to the set terminal S of a set/reset type flip-flop circuit (hereinafter referred to as rs-RFFJ) 78 of a film forward feeding control circuit 77 which is a film forward feeding control means for controlling the film feeding until the film is fed. .

The forward drive circuit 7'9 of the film forward feeding control circuit 77 inputs the Q output of the 5-RFF 78, and operates the film feeding means of FIG. 11 only while the Q output of and is 'H#. The film feeding drive motor 74 is rotated in a direction to move the microfilm 11 in the feeding direction shown in FIG.

Further, the Q output of the 5-RFF 78 is inputted to the other input terminal of an AND circuit 80 which inputs the occipital piece detection signal SD from the occipital piece detection circuit 81, which is the occipital piece detection means, to one input terminal. Output of circuit 80 to 5-RFP78
It is input to the reset terminal R as a reset signal.

This occipital piece detection circuit 81 includes a first piece mark detector 67
The first piece mark signal SK1 from
The second piece mark signal SK2 from the piece mark detector 68 of
are respectively input to an AND circuit 86 via a NOT circuit 82, and the output of this AND circuit 86 is output as an occipital frame detection signal sD.

Therefore, in the occipital piece detection signal SD, the first piece mark detector 67 detects the first piece mark MK, and the second piece mark detector 68 detects the second piece mark 8''.
L″″″8″ cap 1′, D″ 1″′.

Also, the AND of the film forward feeding control circuit 77 described above
The output of the circuit 80 is also inputted via a delay circuit 84 to a copy control circuit 85 which is a copy control means.

When the input becomes 'H', this copy control circuit 85
Each part (copying means) involved in copying the microfilm shown in the figure is controlled in a predetermined order to make a copy of the microfilm, and when the copying operation is completed, the high level 1
A copy end signal pg of H'' is output.

Furthermore, the signal output from the AND circuit 80 via the delay circuit 84 is input to the copy command signal SP from the AND circuit 79.
is also input to the set terminal S of the 5-RFF86, which is input to the reset terminal R.

The Q output of this 5-RFF 86 is the first frame detection signal S01 from the AND circuit 69 which is the first frame detection means.
is input to the AND circuit 87 which inputs it to the other input terminal,
The output is input to the copy command signal SP from the AND circuit 76, the S-RFP 88Ω which is input to the set terminal R, and the set terminal S.

After the AND circuit 69, which is the leading frame detection means, detects the leading frame by these S-RFF86.88, the AND circuit 87, and the AN and D circuits 90, which will be described later, the film backward feeding control circuit 91, which will be described later, This constitutes backward feeding prohibition means for prohibiting backward feeding of the microfilm.

Then, the copy end message PE from the copy control circuit 85 is outputted via the AND circuit 89 which inputs the Q output of the 5-RFF 88 to the other input terminal, and for example, the end of the copy operation is displayed on a display section (not shown). .

Further, the copy end signal pE from the copy control circuit 85
This is a film backward feeding control means that controls feeding the microfilm 11 one frame in the return direction as shown in FIG. 2 via an AND circuit 90 which inputs the Q output of the 5-RFF 88 to the other input terminal. It is input to the set terminal S of the 5-RFF 92 of the film backward feeding control circuit 91.

Reverse drive circuit 93 of this film backward feed control circuit 91
inputs the Q output of the 5-RFF92, and only while this Q output is 'H', moves the film advance drive motor 74 in Figure 11 and moves the microfilm 11 in the return direction in Figure 2 (6). drive in the direction of rotation.

Further, the Q output of the 5-RFF 92 is inputted to the other input terminal of an AND circuit 94 which inputs the second frame mark signal SK2 from the second frame mark detector 68 to one input terminal, and this AND circuit The output of 94 is inputted to the reset terminal R as a reset signal of the 5-RFF circuit 92.

The output of the AND circuit 94 is inputted via the delay circuit 95 to the set terminal S of the copy control circuit 85 and S-RFF 86 described above.

Next, the second
The copying operation of one unit of decipherable information on the microfilm 11 shown in the figure will be explained.

First, the microfilm 11 is searched for information such as information B+, B2, etc. shown in FIG. It is assumed that B5 is recorded and information B1 recorded on the first frame of the optically resolvable KG is projected on the screen 12 of the reader printer.

In this state, when the operator presses the copy switch 45 for one item and then presses the copy switch 25, the copy command signal sP
5-RFF7 of film forward feed control circuit 77
8 is set and S-RFF86.88 is reset.

5-When the RFP 78 is set and its Q output becomes 1H', the forward drive circuit 79 rotates the drive motor 74 in the film feeding direction, so the microfilm 11 is fed in the feeding direction shown in FIG. .

When the occipital frame recording the information B3 of the final page of the microfilm 11 comes to the projection position, the backward drive circuit 81 outputs the occipital frame detection signal SD.

As a result, the output of the AND circuit 80 becomes 1H#,
Since the 5-RFF 78 is reset and its Q output becomes L', the forward drive circuit 79 stops the drive motor 74 and stops the Shi40 film 11 at that position.

Then, after a predetermined time has elapsed since the output of the AND circuit 80 became -H'', that is, after the microfilm 11 completely stopped, the output of the delay circuit 84 became ``H''.

As a result, the copy control circuit 85 controls the microfilm 1
Information B of the resolvable occipital piece in which the information to be copied in No. 1 is recorded
3 starts the copy operation.

At this time, the 5-RFP 86 is set and its Q output becomes 'VHIF, but at this point, the top frame detection signal So is not output from the AND circuit 69, so the 5-RFP
P88 is not set.

When the copying of the information B3 on the microfilm 11 is completed, the copying control circuit 85 outputs a copying end signal pE, and since the 5-RFP 88 is in the reset state at this time, the copying end signal pg is outputted via the AND circuit 90. It is input to 5-RFF92 of film backward feeding control circuit Saki1.

As a result, 5-RFP92 is set and its Q.
Since the output is %H#::none, the backward drive circuit 96 rotates the linear motor 74 in the film return direction, so the microfilm 11 is sent in the return direction as shown in FIG.

Then, when the frame on which information B2 is recorded on the microfilm 11 comes to the projection position, the second frame mark detector 68 activates the second frame mark detector 68.
Detects the piece mark MK2 and outputs the second piece mark signal SK.
Outputs 2.

As a result, the output of the AND circuit 94 becomes 1H",
Since the 5-RFF 92 is reset and its Q output becomes 1L'', the backward drive circuit 96 stops the drive motor 74 and stops the microfilm 11 at that position.

Then, after a predetermined time has elapsed since the output of the AND circuit 94 became ``H#'' and the microfilm 11 completely stopped, the output of the delay circuit 95 became ``H''.

As a result, the copy control circuit 85 controls the microfilm 1
1, and when the copying operation is completed, a copying end signal PK is output.

At this time as well, since the 5-RFF 88 is in the reset state, the copy end signal PK sends the AND circuit 90, ! , is input to the control circuit 91, and the same operation as described above is performed to feed the microfilm 11 in the return direction shown in FIG.

B. Then, when the first frame recording information B1 moves to the projection position, the second frame mark detector 68 detects the second frame mark MK2, so the microfilm 11 stops at that position and Similarly, the copying operation of the information B1 is performed, and the copying operation ends when the copying of the information B1 of the first frame is completed.

At this time, the AND circuit 69, which is the leading frame detection means, is outputting the leading frame detection signal Sc, so the output of the AND circuit 87 becomes 1H", the 5-RFF 88 is set, and its Q output becomes 1H". , the Q output is 1L"-.

Therefore, when the copying operation of the information @B1 recorded in the first frame of the microfilm 11 is completed, the copying control circuit 8
The copy end signal PE outputted from 5 is inputted to a display section (not shown) via an A'N D circuit 89.

As a result, the display section displays that the copying of the desired decipherable information B' +B2 +85 on the microfilm 11 has been completed.

After that, microfilm 11 ff report B+.

If you want to cohesify B2wB5, just operate the copy switch 25 again, and if you want to copy the information of another solvable, search for that solvable and press the cohesive switch 2.
All you have to do is operate 5.

In this way, after searching for a comprehensible record in which the information desired to be copied is recorded, the fourth translator can obtain a copy of the desired comprehensible information with all pages aligned by simply operating the copy switch 25 once. I can do it.

In this case, it is not necessary to search for the first frame of the next possible frame in which the information desired to be copied is recorded and to move the microfilm back one frame.

FIG. 16 is a block diagram similar to FIG. 12 showing another example of the print control circuit.

This embodiment differs from the embodiment shown in FIG. 12 in the following points:
AND the 9 copy-1 end signal pE from the copy control circuit 85.
The number of outputs of the copy end signal PK is inputted to the counter 97 via the circuit 89 and counted, and this counted value CA is compared with the number of copies cB set by the copy part number dial 46 of the eighth tooth. 98, compare each time the count value CA changes, and calculate C
When A < CB, the re-copy signal RP is input to the set terminal S of the 5-RFF 78 of the film advance control circuit 477.

In this way, each time the copying of the desired information recorded on the microfilm 11 is completed, the copy completion signal P= from the copy control circuit 85 is inputted to the counter 97 via the AND circuit 89. Number of copies dial 4
Since the 5-RFP 78 is set by the re-copy signal RP from the comparison circuit 98 until the number of copies set in 3 is reached, the desired resolvable copy operation is repeated the required number of times.

Therefore, by operating the copy switch 25 once, the desired number of decipherable copies can be obtained, making the operation extremely simple.

In the above embodiments, ":" refers to the case where the microfilm shown in FIG. 2 is used, but other microfilms shown in FIGS. 3, 4, and 5 or the It is also possible to use other microfilms (not shown), in which case the configurations of the microphones used and the top frame and back frame detection means may be changed depending on the film.

Furthermore, in the above embodiment, the information is recorded sequentially from the start mark side of the microfilm, but the information may be recorded sequentially from the end mark side. The direction may be opposite to that described above.

As explained above, according to the first and third copying methods and copying apparatus inventions, when copying one unit of information recorded on microfilm in an information retrieval apparatus, This eliminates the need to detect the first frame of the next solvable frame after the solvable one in which the
The time required for copying can be shortened and the operation can be made easier.

Further, according to the second and fourth inventions of the copying method and copying apparatus, in addition to the effects of the first and second inventions, a desired information group can be copied in the same page order once. Since it can be obtained automatically by the operation, the amount of time required for copying can be greatly reduced, and the operation is also extremely simple.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is an explanatory diagram showing an example of a conventional microfilm, FIG. 2 is an explanatory diagram showing an example of a microfilm used to carry out the present invention, FIG. 4 and 5 are explanatory diagrams showing different examples of microfilm ponds used to carry out the present invention, and FIG. 6 is an information retrieval device equipped with a copying device according to the present invention. Figure 7 is a perspective view showing the external appearance of a league printer, and Figure 8 is a front view of the drive unit.
The diagram is 1. Similarly, FIG. 9 is a plan view of the operation panel, and FIG. 2
FIG. 11 is a block diagram of a microfilm search circuit shown in FIG. 2, and FIG. FIG. 2 is a block diagram showing an example of a print control circuit when using the microfilm shown in FIG. 2. FIG. 16 is a block diagram showing other parts of the print control circuit. 11... Microfilm K... Piece KG...
Separable MKI...First frame mark Ml2...Second frame mark M,...Start mark Ml...End mark 12...Screen 13...Film drive unit 14...Operation panel 15...Colpy Uke 2
4...Power switch 25...Copy switch 4
3... Number of copies diamond 2 45... 1 copy switch 67... First piece mark detector 68... Second piece mark detector 69... AND circuit (first piece detection Means) 70... Counting circuit 71... Subtraction circuit 74... Film feeding drive motor 75... Copying start command circuit 77... Film forward feeding control circuit 81... Back frame detection circuit 85 ...Copying control circuit 91...Film backward feeding control circuit 97...Counter 98...Comparison circuit Fig. 1 Fig. 2 Fig. 3 Im Fig. 4 - Fig. 5

Claims (1)

[Scope of Claims] 1. It has a large number of pieces in which information is recorded at regular intervals in the longitudinal direction, and each piece corresponds to a first piece, a middle piece, and a second piece that records one unit of information. The first piece mark and/or the second piece mark are marked with the first piece mark and/or the second piece mark. Second
In an information retrieval device using a microfilm in which piece marks are attached in different rows in the longitudinal direction so that each piece can be distinguished, when copying a desired information group, Based on the detection results of the first piece mark and the second piece mark, the microfilm was fed in the direction in which the information recorder to be copied and the decipherable occipital piece was detected, and the occipital piece was detected. A method for copying microfilm information, characterized in that feeding is stopped at a certain time, and copying is started from the occipital frame of the decipherable frame. 2. It has a large number of pieces on which information is recorded at regular intervals in the longitudinal direction, and the first piece mark and Move both or one of the second piece marks to the first piece mark. Second
In an information retrieval device using a microfilm in which piece marks are attached in different rows in the longitudinal direction so that each piece can be distinguished, when copying a desired information group, Based on the detection results of the first piece mark and the second piece mark, the microfilm was fed in the direction in which the possible occipital piece on which the information group to be copied was recorded was detected, and the occipital piece was detected. At the same time, the feeding is stopped, copying is started from the first frame, and each frame is copied by returning the front microfilm one frame at a time until the first frame is detected, and when the copying of the first frame is completed. A method for copying microfilm information, the method comprising: terminating a copying operation. 3. It has a large number of pieces on which information is recorded at regular intervals in the longitudinal direction, and a first piece mark and a first piece mark are placed on each piece corresponding to the first piece, middle piece, and occipital piece, each of which records one unit of information. Move both or one of the second piece marks to the first piece mark. Second
In an information retrieval device using a microfilm in which piece marks are attached in different rows in the longitudinal direction so that each piece can be distinguished, the following (a) to (a) are provided. A microfilm information copying device characterized by: (b) a first piece mark detector that detects the first piece mark; (b) a second piece mark detector that detects the second piece mark; (c) a first piece mark detector that detects the second piece mark; occipital disease detection means for detecting the occipital disease based on the detection result of the second frame mark detector; (b) copying start command means for instructing the start of a copying operation; (f) a film feeding means for feeding the microfilm; (g) controlling the film feeding means when a start of copying is commanded by the copy start commanding means; , advancing the microfilm in a direction in which a recognisable occipital disease in which a group of information to be copied is recorded is detected, and stopping the feeding when occipital disease is detected by the occipital disease detection means; Feeding control means; (a) Copying control means for controlling the copying means to start a copying operation from the recognizable occipital disease after the film forward feeding control means completes feeding of the microfilm; 4. Longitudinal direction has a large number of pieces on which information is recorded at regular intervals, and a first piece mark and a second piece mark are made respectively corresponding to the first piece, middle piece, and occipital piece of the solvable piece that records one unit of information group. Place both or one of the piece marks on the 1st and 2nd pieces.
In an information retrieval device using a microfilm in which piece marks are attached in different rows in the longitudinal direction so that each piece can be distinguished, the following (a) to Q are provided. Features: A copying device for microfilm information. (b) a first piece mark detector that detects the first piece mark; (b) a second piece mark detector that detects the second piece mark; (c) a first piece mark detector that detects the second piece mark; a first piece detection means for detecting the first piece based on the detection result of the second piece mark detector; b) the first piece; occipital disease detection means for detecting the occipital disease based on the detection result of the second piece mark detector; (e) copying start command means for commanding the start of a copying operation;
f) copying means for copying the information recorded on the microfilm; (g) film feeding means for feeding the microfilm; (b) when a start of copying is commanded by the copying start command means; Controlling the film feeding means, a comprehensible film in which a group of information to be copied on the microfilm is recorded based on the detection result of the first frame mark and/or the second frame mark. a forward feeding control means for causing the film to be fed in a direction in which occipital disease is detected and to stop the feeding when occipital disease is detected by the occipital disease detection means; (i) copying of one frame by the copying means; Each time, the film feeding means is controlled to detect the frame one frame before the first frame mark detector and/or the second frame mark detector based on the detection results of either or both of the first frame mark detector and the second frame mark detector. 0) film backward feeding control means for feeding the microfilm in the backward direction until the microfilm is fed; 0) every time the microfilm is fed by the film forward feeding control means and the film backward feeding control means a copying control means that starts a copying operation from the possible occipital disease in which the information to be copied is recorded and copies each frame one by one; Q→ After the first frame detection means detects the first frame, backward feeding prohibition means for prohibiting backward feeding of the microfilm by the film backward feeding control means;