JPS60128567A - Information retrieval device - Google Patents

Abstract

PURPOSE:To prevent deterioration of quality of a picture on a photo film and of lamp service life by controlling the lighting source so as to be extinguished or darkened when a timer is activated for a set time. CONSTITUTION:When a search key 20 is set while a film frame address to be retreived is inputted to a retrieval control circuit 27, the retrieval is started. Mark detecting signals 18c', 18b', 18a' of a batch file page are inputted to a counter 30 one after another from a mark detector 11 attended with the start. When each number of the batch file gas inputted by entry and the contents of a back mark counter section 30c, a file mark counter section 30b and a page mark counter section 30a are coincident with each other, a comparator circuit 27' outputs a stop signal from the terminal (a) of the comparator circuit 27', its stop signal is given to a film feeding control circuit 28, which stops the motor and film feeding.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device for retrieving desired information in a film.

Information retrieval devices attached to microfilm readers, reader printers, etc. illuminate the microfilm with a lamp and project the illuminated image onto a screen for reading, or onto a photoreceptor for printing. I have to. In such an information retrieval device, if the operator is away from the device for a long time while searching for a large amount of information or after the search is completed, the film will be illuminated for a long time, and if a diazo film or the like is used, the lamp will There was a problem that the quality of images on the film deteriorated due to ultraviolet rays. Furthermore, since the lamp remains lit even when the searched image is not being used, the life of the lamp is shortened, which is also an economic problem.

An object of the present invention is to provide an information retrieval device that solves the above problems.

The present invention will be explained below using specific examples shown in the drawings.

FIG. 1 is a perspective view showing a schematic configuration of a main part of an example of a microfilm league or reader printer equipped with an information retrieval device to which the present invention is applied.

In the figure, reference numeral 2 denotes a film cartridge inserted into the apparatus, and a roll microfilm 1 is wound around a reel and stored in the cartridge. 3 is a rotational drive motor (film rewinding 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 rotational drive motor for the roller; 7 and 8 are solenoids and roller support arms that swing the roller 6 up and down; 9 and 1O are first and second film guide rollers;
13 is a film take-up reel, and 4 is a rotation drive motor (film take-up motor) for the reel. 12 is a film automatic winding mechanism that automatically winds the leader tape la (FIG. 2) at the leading end of the microfilm transported by autoloading onto the core 13a of the film take-up reel 13. The mechanism of this example has an arc-shaped arm 12c that can freely swing around a shaft 12a and has a small roller 2b at its tip supported by a pivot. Three sets of pinch roller assemblies, each of which is biased by a tension spring 12d in a direction in which the pinch roller assemblies are always pressed in contact with the reel core 13a, are arranged at approximately equal intervals around the outer periphery of the reel core 13a.

40Viml and the second film guide rollers 9 and 10, it is a projection optical system that includes an illumination lamp 14, a condensing lens 15, a film mark searcher 11, and a projection lens 16.
Consists of etc.

When the autoloading button (not shown) is pressed after the film cartridge 2 is set in the device, the motors 5 and 4 are energized and the roller 6 moves in the film feeding direction as shown by the arrow. Also, the film take-up reel 13 is driven to rotate in the direction of the film winding 11'. Also, the solenoid 7 is energized, the roller support arm 8 moves downward, and the roller 70 is held in position in the film path of the film exit portion 2a of the cartridge 2. Rung 14 serves as a puncturing notification.

The tip of the leader tape 1a, which has a width wider than the distance between the pair of reel flanges, is fed out by the nip between the film feed roller 6 and the reel flange (not shown), and due to the stiffness of the leader tape 1a, the tip of the cola 6 is Due to the rotational force, the film successively travels 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, and reaches the core 13a of the film take-up reel 13. When the film reaches the outer peripheral surface of the core, the film starting end leader tape 1a is automatically wound by the mechanism 12.

Note that between the film feed roller 6 and the first film guide roller 9, the first and second film guide rollers 961
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 above-mentioned filt autoloading progresses, and the leader tape section 1
When the black start mark part MS (FIG. 2) 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, it reaches the position inside the mark detector. It is detected by the mark detection element, and based on the detection signal, the communication to the motor 5 and the solenoid/f door is cut off, and the rotation of the film feed row 26 is stopped, and the roller 6 escapes from the film 1 surface and moves upward. However, it is maintained in a non-acting state with respect to the film 1. Also, the power to the motor 4 is cut off, and the film winding IJ-ru 13 is cut off.
rotation is stopped. In other words, the film in the cartridge 2 is unwinded, and there is no possibility of the above-mentioned autoloading/automatic winding for the reel 13.
When the mark detector 11 is located at the aperture portion lid of the mark detector 11, the traveling is stopped and a standby state is entered.

FIG. 2 is an 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, a quiet 3-level prep mode. In the figure, KB(1・2...)・KF(1・2・
)-KP (1, 2, . . . ) are batch frames, file frames, and page frames that are information frames (negative or positive) that are sequentially captured along the length of the roll film surface. M.B.
(1・2...)・MF(+・2...)・MP(1・
2...) are frame search marks imprinted on the edge of the film corresponding to the respective frame positions, and the three types of marks have mutually different sizes or lengths (MB > MF). ＞
It is a rectangular mark different from MP. The page frame KP is a unit information frame in which actual information is captured, and the file frame KF is a group of page frames KP (12...) for one item, each forming a set.
(Sometimes just one frame is enough for one item) This is the heading frame for medium classification taken before the batch frame KB (1, 2...)
furthermore, the file frame group KF (1
・2...) is a major classification heading frame taken before each first file frame KF.

Comparing this to a book, the batch pieces KB (12...)
File piece KF (+・2...)・Page piece KP (1・
2...) correspond to chapters, sections, and pages in the book, respectively.

1a is the leader tape portion at the starting end of the film described above; 1b
is a film trailing end leader tape section (trailer section) connected to the rear end of the film 1, and the tape 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 rectangular box with a shallow bottom and an open top.

11b is a lid case that covers the main body case lla. llc is an aperture portion formed approximately in the center of the bottom plate of the main body case lla to be thicker than the film frame, and lid is an aperture portion formed approximately in the center of the top surface of the lid case Ilb to be approximately the same size as the film frame. . The film 1 runs under the aperture portion 11c of the main body case lla.

17a, 17b, and 17c are three optical fibers, and one end of these optical fibers is held by a holding member 11eK disposed on the lower side of the aperture portion 11c of the case bottom plate in the main body case lla, They are arranged with their ends facing downward and extending into the aperture along the lower side of the aperture. Therefore, the three optical fibers 17a and 17b
- Each mark MB - MF - MP formed under the downward end surface of 17b on the lower edge of the film 1, and the lower edges of the start mark MS and end mark ME pass as the film I runs. . Reference numerals 18a, 18b, and 18c are three phototransistors connected to the other end surfaces of the three optical fibers 17a, 17b, and 17c.

The optical axis of the projection optical system 4o passes through the approximate center of the aperture portion 11c on the bottom plate of the main body case and the aperture portion lid on the top surface of the lid case.

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 for inputting batch-file/page numbers, 21 and 22 are the batch and file keys that are pressed when entering the batch number and file number using the numeric keypad-19, and 20 is the numeric keypad 19 and batch key 21 fist shown above. A search key is used to start the search after specifying and inputting the required information frame address using the file key 22, and 23 and 24 are one-frame advance keys ((-1→key) and 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 pressing the +i key in the key box 41, a desired film frame address is designated and input into the control circuit (search control circuit). Specifically, for example, 3 batches, 1 file, 2
If you have searched for the film frame on page 19, enter 31 on the numeric keypad and press the batch key 21, then enter rlJ and press the file key 22, then press 2
”. As a result, the address of the required upstream 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 you are using is in 2-level prep mode (file and page), enter the number of files, press the file key 22, and then enter the number of pages. In the case of the 1-level prep mode with only one frame, the required frame addresses are designated and inputted by setting the page number (keys 21 and 22 are not used).

Specify and input the piece address as described above, and then press the search key 2O. Then, as mentioned above, the auto-loading of the roll film 1 and the core 1 of the take-up reel 13 are performed.
The leader tape section 1a of the film starting end is automatically wound around the start mark section MS of the film 1.
is located at the aperture portion 11d of the mark detector 11, and the film winding motor 4 of the device is in a standby state. As a result, the film take-up reel 13 is driven by the circuit, and the film I on the car 1J side 2 travels toward the take-up reel 13 side. As the film 10 runs, the marks on the lower side of each film frame are detected by the mark detector 1.
The three optical fibers 17a, 17b, and 17c of 1.
8b, 18c enters the light, is converted into an electrical signal, and is sequentially passed through the mark detector 11 section by a search control circuit including a microcomputer. Interspecies detection, passing U count, etc. are performed, and an automatic search for the required information is executed. The rotation of the take-up reel 130 is automatically stopped when the information side of the designated specified location is located at the aperture portion 11c/lid of the mark detector 11, and as a result, the static image of the desired information side is projected by the projection lens 16. It is enlarged and projected onto the screen shown.

In the case of a reader printer, when a copy button is pressed, an image on the information side is projected onto a photoreceptor, etc., and a copy is executed.

To each film frame search mark of film 1・IB(1・2
...)・MIi'(J・2...)・MP(1・2・
), in this example, as will be described later, for the batch mark MB, the first MDI is 1. The numbers are counted sequentially until the end of the film.

Regarding file mark MF, the file mark MF (1, 2...) in each batch is the first one M
It is counted sequentially with Fl as 1, and the count is reset each time it enters the next batch. Also, regarding the page mark MP, the page mark MP (1・
2...) is the first MP.

is counted sequentially with 1 as 1, and the count is reset each time the next file is entered.

After completing the automatic search, magnified projection viewing on the screen, observation, or copying of one required information side, when the address of the next required information side is set and inputted by key operation of the key box 41, the aperture section 11c of the current mark detector 11 is displayed. Is the information side of the input address set in the above method based on the previously searched information side address located at the lid position located closer to the film take-up hanger 13 than the position of the mark detector 11? The control circuit determines whether the film is on the cartridge 2 side, and the film winding motor 4 or the same rewinding motor 3 is driven to rotate, and the C film 1 travels to the take-up reel 13 side or the cartridge 2 side, and the above-mentioned light information side is driven. An automatic search is performed in the same way as in the case of , and the next required frame is located in the aperture section 1'lc.lld of the mark detector 11.

In FIG. 5, 27 is a search control circuit including a microcomputer, which outputs a page mark signal 18a' from the mark detector 11, a file mark signal 18b',
The badge mark signal 18c' and key signals from each key of the key box 41 are received. 28 is motor 3.4.5. A film feeding control circuit 29 controls the driving of the lamp 1.
This is a lamp control circuit that controls the blinking of 4.

FIG. 6 is a block diagram showing an example of the search control circuit 27. 30 is a counter and the page mark signal 18
Page mark counting section 30a for counting a', file mark counting section 30 for counting file mark signal 18b'
It has a batch mark counting section 30c that counts b and batch mark signals 180'.

Each mark counting section adds and counts input mark signals when the film 1 is wound on the take-up reel 13 and travels in the n direction (forward travel), and conversely travels in the direction in which it is rewound into the cartridge 2 (reverse travel). When doing so, the input mark coefficient is subtracted and counted. Further, the page mark counting section 30a is reset when the mark detector 11 detects the file mark MF, and the count value becomes "0" or "1", and the file mark counting section 30b is reset when the mark detector 11 detects the bunch mark MB. When detected, it is reset and the count value becomes "0".

The search control circuit 27 also includes 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, 36 is an OR gate, and 37 is a delay circuit. Comparison circuit 27' inputs input 1 to input device 441. , when the number for each category (batch file page) matches the corresponding number of marks in the mark counting section of the counter 3o, a film stop signal is output from terminal a. When any of the keys 20, 23, and 24 is turned on or the search operation is completed, the flip-flop circuit 31 is set, and the delay circuit 37 outputs the 1j signal after a period of time. When the delay circuit 37 outputs the 1-1 signal, the AND gate 32 gates and the timer 33 is activated.The timer 33 is set to 11θ and outputs a pulse signal from the terminal t. This pulse signal resets the flip-flop circuit 31.While the timer 33 is operating, the key 2
Whether any of 0, 23, and 24 turns on or comparator circuit 2
When the 1ff stop signal ρ·m is applied to the terminal a of 7, the output from the AND gate 32 causes the f/f motor 33 to be reset and return to its initial state, and to start operating again. When the Noritsubu flop circuit 31 is set, the lamp 14 is turned on by the lamp control circuit 29, and the flip-flop
If the lamp circuit 31 is reset, the lamp 14? Portrait.

The time set by the timer 33 is set to a maximum cross beam time or a time slightly longer than the time required to view and print the retrieved image.

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

When the film frame address to be searched is input into the search control circuit 27 by key operation of the input device 41 and the search key 20 is turned on, the film 1 is fed forward, for example, and the search is started.

Along with this, the mark detector 11 also creates a batch file.
Each mark detection signal of the page 18c', 18b'18a'
are input to the counter 30 one after another, and the respective mark detection signals are input to the counting sections 30c, 30b, 3 of the counter 3o, respectively.
It is counted as 0a. Then, in the comparison circuit 27', each number of the batch file page inputted above, a batch mark counting section 30c that counts the batch mark signal 180', and a batch mark counting section that counts the file mark 1 word 18b'. 30b, page mark signal 18
When the contents of the page mark counters 30a that have counted a coincide with each other, a stop signal is output from the terminal a of the comparison circuit 27', and the stop signal causes the film feed control circuit 28 to stop the motor 4 and stop the film from running. Stop. In other words, the film frame at the predetermined location that has been input as 1 is detected by mark detector 1.
The rotation of the take-up reel 13 is stopped for one moment when the film is placed in the first aperture section 11c/lid, and the image of the film frame is enlarged and projected onto a screen (not shown) by the optical system 40. Alternatively, tree Q copying is executed by pressing the copy button.

FIG. 8 is an operation flow +IK+ of the lamp 14.

When any of the search key 2 (), (+) key 23, and (→ key 24) is turned on, the flip-flop circuit 31 is set, the AND gate 32 is gated, and the timer 33 is activated. Lamp J4 is lit by setting, and the film is illuminated at the start of search.Search operation u, 7, stop 1 output from comparison circuit 27'
The timer 33 is reset by the signal g and starts operating again.

When the timer 33 operates for the set time after the search is completed, the flip-flop circuit 31 resets! and the lamp 14 goes out.

In the above embodiment, the timer operates QL=tej,(,%・
When the lamp 14 is turned off or the lamp 14 is
You can also make it light up with an appropriate amount of light, less than Ishitsune.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the main parts of an example of a microfilm reader or league printer, Fig. 2 is a partial plan view of a roll microfilm, and Fig. 3 is a part of a mark detector. Figure 4 is an enlarged slope view of the notch, Figure 4 is a slope view of the key box, Figure 5 is a diagram showing the input and output of the search control circuit, Figure 6 is a block diagram showing an example of the search control circuit, and Figure 7 is a diagram showing an example of the search control circuit. The figure is an operation flowchart at the time of search, and FIG. 8 is an operation flowchart of the lamp. 11...Mark detector 14...Lamp 41...Key box

Claims (1)

[Claims] an illumination source for illuminating the film; a retrieval means for retrieving desired information in the film; a timer means for activating at the start or end of a search; An information retrieval device comprising: a lighting control means that controls the lighting source to turn off or dim when activated.