JPS60125832A - Information retrieval device - Google Patents

Abstract

PURPOSE:To shorten the time of re-retrieval and to improve operability by stopping a film run when the address of a high-order classification inputted to an input means and the contents of the 2nd counting means do not coincide with each other after coinciding with each other, and coping with register error retrieval rationally. CONSTITUTION:A film has batch marks, file marks, and page marks corresponding to chapters, paragraphs, and pages of, for example, a book. If a five-page indication is inputted by mistake when a three-batch, one-file, and two-page indication should be inputted and automatic retrieval is started, the batch number coincides with the contents of a batch mark counting part 30c and then the file number coincides with the contents of a file mark counting part 30b. Then, page marks in the file 1 are counted by a counting part 30a and a register error is judged when a comparing circuit 27' detects the dissidence between the counted value and the inputted page 5 which is not present in the file to output an error signal, thereby stopping the film.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device in a microfilm handling device such as a microfilm reader competition league printer, in which the address of the required information frame is inputted using an information frame address designation input means. Streamlined the behavior of the device when an automatic search is performed by incorrectly setting an information frame address that does not exist in the microfilm currently inserted into the device. The purpose is to improve the operability for re-searching and shorten the re-search time.

FIG. 1 is a perspective view showing a schematic configuration of essential parts of an example of a microfilm league or league printer. In the figure, 2 is a film cartridge inserted into the device, and a roll microfilm l is placed inside the cartridge.
is wound up on a reel and stored. 3 is a rotation drive motor (film rewind motor) for the reel in the cartridge.
, 6 is a film feed roller (capstan roller) disposed near the film exit portion 2a of the cartridge 2, 5 is a rotary drive motor for the roller, 7e8 is a solenoid that swings the roller 6 downward by 1. and a roller support arm, 9.lO are first and second film guide rollers,
13 is a film take-up reel, and 4 is a rotation drive motor (film take-up remoter) for the reel.

Reference numeral 12 denotes a film automatic winding mechanism that automatically winds the leader tape la (FIG. 2 (a)) on the leading edge side of the microfilm transported by autoloading around the core 13a of the film winding reel 13. . The mechanism of this example has an arcuate arm 12c that freely swings around a shaft 12a and has a small roller 12b pivoted and supported at its tip. Three pairs of pinch roller assemblies, which are biased by a tension spring 12d in the direction of contact, are arranged around the outer periphery of the reel core 13a at approximately equal intervals.

40 is a projection optical system disposed between the first and second film guide rollers 9 and 10, which includes an illumination lamp 1411, a condensing lens 15, a film mark detector 11, and a projection lens 16.
Consists of etc.

When the autoloading device (not shown) is pressed after the film cartridge 2 is inserted into the device and set, the motors 5 and 4
is energized, and the roller 6 is driven to rotate in the film feeding direction as shown by the arrow, and the film take-up reel 13 is driven to rotate in the film winding direction. Also, the solenoid 7 is energized, the roller support arm 8 moves downward, and the roller 6 is moved and held in the film path of the film exit portion 2a of the cartridge 2. The lamp 14 is turned on.

The leading end of the leader tape 1a, which is wider than the gap between the pair of reel side plates (discs) in the cartridge 2, is fed out by the second pump part of the film feed roller 6 and the reel flange (not shown), and the leader tape 1a Due to the strength of the rotation of the roller 6, it continues to travel along the path of the first film guide roller 9 → the lower side of the mark detector 11 → the second film guide roller 10 → the film take-up reel 13. The film reaches the core 13a of the reel 13, and the film starting end leader tape 1a is automatically wound by the mechanism 12 around the outer peripheral surface of the core.

Note that between the film feed roller 6 and the first film guide roller 9, between the first and second film guide rollers 9 and 1.
Although a guide plate forming a film running path is provided between the second film guide roller 10 and the film take-up reel 13, it is not shown in the figure.

The feeding and automatic winding of the film starting end leader tape section 1a onto the take-up reel core 13a by the film autoloading progresses, and the leader tape section 1
When the black start mark part MS (FIG. 2 (a)) interposed at the joint between the rear end of a and the leading edge of the film 1 reaches the aperture part lid of the mark detector 11, the mark is detected. The mark is detected by the mark detection element inside the device, and the motor 5 and solenoid 7 are activated based on the detection signal.
When the current is cut off and the rotation of the film feed roller 6 is stopped, the roller 6 escapes from the film 1 surface in the -L direction and is held in a non-acting state with respect to the film 1.

Also, the power to the motor 4 is cut off, and the film take-up reel 1
3 rotation is stopped. That is, after the film in the cartridge 2 is auto-loaded and automatically wound onto the take-up reel 13, when the start mark part MS is located at the aperture lid of the mark detector 11, the film stops running and enters a standby state. .

FIG. 2(a) is a partially omitted plan view of an example of a roll microfilm. There are various film frame search mark modes that can be added to roll microfilm. This example shows one of them, the so-called 3-level prep mode. In the figure, KB (+ fist 2-9.), KF (,
Fist, , ,, )・KP(.

・210. ) are batch frame file frames/page frames which are information frames (negative or positive) that are sequentially photographed along the length of the roll film surface. MB (I・2.,,)
・MF (+ ・2., , )・MP (, ・201.) are frame search marks imprinted on the edge of the film corresponding to individual frame positions, and these three types of marks are These are rectangular marks that have different sizes or lengths (MB>MF>MP). The page frame KP is a unit information frame into which actual information is captured, and the file frames KF form a set of 1
Page piece group KP (,・2.,,) (1 piece with only 1 piece)
The batch frame KB (, 2, -) is a group of file frames KF (, 2, -) for one item, which is a pair of each other. This is a heading frame for major classification taken before each first file frame KF (1, 21.,) of 210.). Comparing this to a book, patch piece KB (,・2.,,) @ file piece KF (1・
299. ) and page pieces KP (, 239.) correspond to chapters, sections, and pages in a book, respectively.

la is the leader tape portion at the starting end of the film, lb
is a film trailing end leader tape section (trailer section) connected to the rear end of the film 1, and this tape section 1b is wound around the core of the reel in the cartridge. ME is a black end mark section interposed at the joint between the rear end of the film 1 and the tape section 1b.

FIG. 3 is an enlarged partially cutaway perspective view of the mark detector 11. In this example, an optical fiber is used. l
la is the main body case of the mark detector, which is a shallow rectangular box with an open top surface. 11b is a lid case that covers the main body case lla. Reference numeral 11c denotes an aperture portion larger than the film frame formed approximately in the center of the bottom plate of the main body case lla, and lid represents an aperture portion formed approximately in the same size as the film frame approximately in the center of the top surface of the lid case llb. The film l is located in the aperture part of the main body case lla.
drive under. The fists 17a to 17b 17c are three optical fibers, and one end of these optical fibers is held by a holding member lie disposed on the lower side of the aperture portion 11c on the bottom plate of the case inside the main body case lla. , are arranged with their ends facing downward and extending into the aperture along the lower side of the aperture. Therefore, three fibers 17
Marks MB and MF are formed by capturing the bottom of the downward end faces of a, 17b, and 17c onto the lower edge of film l.
P, and the lower edges of the start mark MS and end mark ME pass as the film 1 runs. 18a* 18
B-shaft 18c is the above three optical fibers I7a #17b pot 1
There are three phototransistors connected to each other end face of 7c. The optical axis of the projection optical system 40 is the aperture part lie of the case bottom plate and the aperture part l of the large surface of the lid case.
It passes through approximately the center of the id.

FIG. 4 is a perspective view of a key box 41 (or operation panel) as an information piece address designation input means (input device);
is the numeric keypad used to input batch, file, page, etc. numbers, 21-22 are the patch key and file key that are pressed when entering the batch number and file number using the numeric keypad 19, respectively. A search key is used to start a search after specifying and inputting a required information frame address using the key 22, and 23 and 24 are a one-frame advance key ((+) key) and a one-frame return key ((=) key) for film information frames, respectively. Reference numeral 25 denotes a display device that displays the specified input information frame address number, errors, etc. 26 is a clear key.

Then, by operating the keys on the key box 41, a desired film frame address is designated and input into the control circuit 27. Specifically, for example, 3 batches - 1 file, 2nd page film frame K
If you want to search for P2 (Figure 2 (b)), enter "3" on the numeric keypad 19 and press the buff key 21, then enter "1" and press the file key 22, then press "2".
”. As a result, the address of the required film frame is designated and input. Further, the designated input film frame address is displayed on the display 25.

If the search mode for the film used is the 2-level blip mode of files and pages, enter the number of files, press the file key 22, and then enter the number of pages. In the level blip mode, the required frame addresses are designated and input by entering the page number (keys 21 and 22 are not used).

The frame address is designated and input as described above, and then the search key 20 is pressed. Then, as mentioned above, the roll film 1 is automatically loaded and the core 1 of the take-up reel 13 is loaded.
The leader tape portion 1a of the film starting end is automatically wound around the film 3a, and the start mark NMS of the film 1 is
is located at the aperture portion lid of the mark detector 11 and is in a standby state, and the film winding remoter 4 of the device is energized. As a result, the film take-up reel 13 is rotationally driven, and the film 1 is moved toward the take-up reel 13 from the cartridge 2 side. As the film l travels, the marks on the lower sides of the individual film frames sequentially pass under the downward end surfaces of the three optical fibers 7a-17b+117c of the mark detector 11, and as they pass, each of the optical fibers 7a-17b The intermittent optical signals incident on the phototransistors 18a, 18b, and 18c are converted into electrical signals, and a search control circuit including a microcomputer sequentially passes through the mark detector 11 section to detect each film frame. Detection mark MB-MF-M
The type of P is detected, the number of passes is counted, and an automatic search for the required information piece is executed. The rotation of the take-up reel 13 is automatically stopped when the information frame at the designated and inputted location is located at the aperture portion lie/lid of the / mark detector 11, and the static image of the desired information frame is projected by the projection lens 16. It is projected on the screen shown in the figure. In the case of a reader printer, when a copy button is pressed, the image of the information frame is projected onto a photoreceptor, etc., and the copy is executed.

Each film frame search mark MB of film l (.

・2. ,,)・MF(+・20.-)・MP(,・
2. .

Regarding the file mark MF, for each patch, the file mark MF within the patch (,・2,,,) is the first one M
F, is counted sequentially with 1 as 1, and the count is reset each time the next patch is entered. Also, regarding page mark MP, page mark MP within the file for each file (,
・2. , , ) are counted sequentially with the first one, MP, as l, and the count is reset each time the next file is entered.

After completing the automatic search for one required information piece, the projection observation or copying of one required information piece on the screen, set and input the address of the next required information piece using the keys in the key box 41, and the current position of the aperture section 1lc-1ld of the mark detector 11 will be Based on the address of the previously searched information frame located at The control circuit determines whether the film 1 is on the take-up reel 13 side or the cartridge 2.
The next required frame is located at the aperture portion lie/lid of the mark detector 11, and an automatic search is executed in the same manner as in the case of the optical information frame described above.

By the way, in such an information frame search device, it is possible to incorrectly set the address number of the required film frame to be searched and enter a frame address that does not exist in the film set in the device, and press the search key 20 without noticing this. If you press the button to start an automatic search (hereinafter referred to as a numeric error search), specifically, for example, as in the above example, 3 patches - 1 file, 2nd page film frame KP2 (Figure 2 (b)) When searching for the film frame address, when searching for the patch,
3" and "1" for the file were correctly set, but for the page, when it should have been set as "2", the page number that does not exist in the 3 patch 111 file was mistakenly set, for example, "5". If you press the search key 40 to start an automatic search without noticing the misplaced number, in the case of the conventional device, the address corresponding to the misplaced address will not be found and the film in the cartridge 2 will be searched. (2) is gradually wound toward the take-up reel 13, and finally the end mark ME of the film L reaches the position of the mark detector 11, at which point the film is stopped running and the display 25 An error warning will be displayed.

The same thing happens if you misplace a patch or file number.

For the first time, the operator noticed the number of incorrect piece addresses.
As a countermeasure, cancel the error warning, move the film l, and move the aperture section 11cIIlld of the mark detector 11.
Place the last frame of the film at the position, check the address of this last frame, enter that address as the reference address for re-search, and then enter the correct address of the required information frame 3 patch - 1 file, 3 After performing a key operation to re-enter the page, the automatic search is executed again.

However, if the error warning is displayed only after the film l has been wound up to the end mark ME, time is wasted and it is not rational.

Furthermore, the process from noticing an error in the number of addresses on the error warning display to redoing the automatic search requires many key operations, which is time-consuming and troublesome.

The present invention has been developed and proposed in view of the above, and is a practical device that streamlines the countermeasure actions of the device in the case of a device error search, shortens the time required for re-search, and improves operability. This type of information retrieval device is provided.

This will be explained below using a specific example. FIG. 5 is a schematic diagram showing the input and output of the search control circuit. Reference numeral 27 denotes the search control circuit including a microcomputer, and the page mark signal 18 from the mark detector 11 is input as an input.
a- Fill mark signal 18b/batch mark signal 18
0', the numeric key 19, the search key 20, the bunch key 21, the file key 22, the (+) key 23, the (-) key 24, and the clear key 26 of the key box 41. Outputs include a display 25, a film feed control circuit 28, and a frame 7 drive circuit 29.
There is.

FIG. 6 is a block diagram showing one example of the search control circuit 27. 3o is counter e, page mark signal 18
Counting section 30a that counts a', file mark signal 18
30 b, and a counting section 30c that counts the patch mark signals 18c.

Each mark counting section adds and counts input mark signals when the film l travels in the direction in which it is wound onto the take-up reel 13 (forward travel), and conversely travels in the direction in which it is rewound into the cartridge 2 (reverse travel). When the input mark signal is subtracted and counted. Further, the page mark counter 'M1 section 30a is reset when the mark detector 11 detects the file mark MF and the count value becomes "0" or rlJ, and the file mark counter section 30b is reset when the mark detector 11 detects the batch mark MF.
When it is detected, it is reset and the count value becomes "O".

Also, inside the search control circuit 27, there is a comparison circuit 27 that compares each batch file page number input into the input device (key box) 41 with the count value of each counting section of the counter 30.

31 is a flip-flop circuit, 32 is an AND gate, 3
3 is a timer, and 36 is an or gate.

/ The comparison circuit 27 stores a counter 30 corresponding to the number for each category (batch file page) input to the input device 41.
A film stop signal is output from terminal a when the counted values of the mark counting section match each other, and when the Hisaka batch signal and the counted value of the batch mark counting section or the input file number and the counted value of the file mark counting section match. After that, when one of them no longer matches (it is determined that there is an input error)
A signal is output from terminal b-c.

When performing a search, it is possible to perform a search by running the film either in the forward direction or in the reverse direction; however, in the following explanation, it will be assumed that the search is performed by moving the film forward in response to a search start command. When traveling in reverse, the film is first searched for a frame with a batch mark of the frame group to which the desired frame belongs, and then the film is moved forward to search for the desired frame.

FIG. 7 is an operational flow diagram of the film frame retrieval device described above.

(a) In the case of normal search When the film frame address to be searched is inputted to the search control circuit 27 by key operation of the input device 41 (step 1) and the search key 20 is turned on (step 2), the forward running of film 1 ( 3) is performed and the search is started. Along with this, each mark detection signal 18c1118b-18a of the batch file page is input from the mark detector 11 to the counter 30 one after another, and each of these mark detection signals is input to the counter 30's counting section 3Oc-30b, 30a, respectively. is counted. Then, in the comparison circuit 27, each number of the batch meeting file page inputted above and the batch mark signal 1 are compared.
When the contents of the batch mark counter 30c that counted 8c, the file mark counter 30b that counted the file mark signal 18b, and the page mark counter 30a that counted the page mark signal 18a match (steps 4 to 8), the comparison is made. A stop signal is output from the terminal a of the circuit 27', which activates the transistor 35, activates the film feed stop control circuit 28, and stops the film from running (step 9). That is, the film frame at the designated and input location is located at the aperture portion l of the mark detector 11.
The rotation of the take-up reel 13 is automatically stopped +h when it is located at the position ie.11d, and the image of the film frame is enlarged and projected onto a screen (not shown) by the optical system 40.

Alternatively, copying is executed by pressing the copy button.

(b) In the case of misplacement search Specifically, as in the example above, in order to search for film frame KP2 in Figure 2 (b), search for the correct frame address of 3 batches, 1 file, and 2 pages. Where you should enter the number,
For example, if you make a mistake in setting the page number and start an automatic search by setting the page number "5" that does not exist in the 3 batches/1 file, in this case, the automatic search progress process First, the entered batch number and the contents of the batch mark counter match (steps 4 and 5), and then the entered file number and the contents of the file mark counter match (steps 6 and 7). Then, the page marks MP in the 3-batch l file are sequentially counted, and when the last page mark MP3 in the file is counted, the next file mark MF2 is counted, so the page mark counting unit 30a The count is reset, and the contents of the file mark counting section 30b and the manually entered file number no longer match (step 10).

As a result, it is determined that a numbering error has occurred, and when the file mark counting section 30b counts the signal of the file mark MF2 according to the above method, an error signal is output from the terminal of the comparison circuit 27', and this error signal causes the flip-flop 31 to
is set. At this time, a signal rlJ is outputted from the output Q, and the transistor 35 becomes conductive through the OR gate 36, and the film feed stop control circuit 28 is activated, so that the film is stopped at the aperture portion li of the mark detector 11.
The process stops with the file frame KF2 corresponding to the file mark MF2 positioned at the e-lid (step 11).

Also, when an error signal is output from terminal C, a warning signal is output from terminal C, and this signal causes the display 25 to flash to warn the operator of the error (step 12). This warning causes the display to display an error mark or text. This may be done by emitting a sound such as a buzzer, lighting a warning lamp, or the like. This error warning continues unless the clear key 26 is then turned on (step 13).

Next, when the operator turns on the clear key 26 (step 14), the error warning is canceled and the AND gate 32
A signal rlJ is outputted from , and this signal makes the transistor 34 conductive, thereby activating the film l-frame pack drive circuit 29 (step 15). As a result, the film 1 is run backwards by one frame, and when the mark detector 11 detects the page mark MP3, the film stops. That is, mark detector 1
The film stops when the frame immediately before the file frame KF2, that is, the film frame KP3 of 3 batches, 1 file, and 3 pages, is located in the aperture section 11cm11d of 1 (steps 15-16 and 9). At the same time, the timer 33 is activated and the flip-flop 31 is reset after a certain period of time.

Thereafter, by re-entering the correct frame address of the predetermined film frame on the input device 41 and pressing the search key 2o, the re-entered address is displayed on the display 25, and the frame address stored above is used as a reference. An automatic search is performed for the film frame at the correct address that you have re-entered. Note that a predetermined film frame may be found by pressing a key to move the film backward one frame at a time.

The above example is for the case where the page number is entered incorrectly (misplacement), but if the file number is entered incorrectly, when the next higher mark, that is, the batch mark, is counted, the input patch number and Since the eight mark counters do not match, it is determined that a numbering error has occurred, and steps 11 to 17 are performed in the same manner as in the previous case.
16.9 operation flow begins.

As described above, in the device of the present invention, even if a misplacement search is performed, the film 1 is not located at the film end mark portion M as in the conventional device.
When the film is not wound up to E and the next file mark or patch mark of the incorrectly placed film frame address is counted, the film winding is automatically stopped midway and an error warning is issued, thereby making the user aware of the incorrectly placed number. Therefore the film l
There is no time loss in winding up to the end.

Then, it is possible to perform a re-search using the correct frame address again from the state where the film is stopped mid-way, and the key operations in this case are simple, and the re-search time when performing a search with an incorrect number is shorter than with conventional devices. This will shorten the time and improve operability.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the schematic configuration of the main parts of an example of a microfilm reader or league printer, and Figure 2 (
(a) and (b) are partial plan views of the roll microfilm, Figure 3 is an enlarged partially cutaway slope view of the mark detector, Figure 4 is a slope view of the key box, and Figure 5 is the search FIG. 6 is a block diagram showing inputs and outputs of a control circuit, FIG. 6 is a block circuit diagram showing an example of a search control circuit, and FIG. 7 is an operation flow diagram when searching for an abnormality. ■ is microfilm, MB is batch mark, MF is film mark, MP is page mark, 11 is mark detector, 19 is numeric keypad, 2o is search key, 21 is patch key, 22 is file key, 26 is clear key, 25
is an indicator. Patent applicant Canon Co., Ltd.

Claims (1)

[Claims] (1) A first mark is attached corresponding to a selected frame of a microfilm having a large number of frames recording information, and a first mark is attached corresponding to a predetermined frame of each frame group recording one unit of information. . a mark detection means for detecting a second mark representing a higher classification than the first mark; a first counting means for counting the first mark; a second counting means for counting the second mark; an input means for inputting a classification address and a lower classification address; and a feeding means for stopping the film when the upper classification address inputted into the input means and the contents of the second counting means do not match after they match. An information retrieval device comprising: a control means;