JP2531633B2 - Information retrieval device - Google Patents

Description

The present invention relates to an information search device for searching for desired image information by detecting and counting search marks provided corresponding to each image information on a microfilm.

[Prior Art] In a reader printer or the like, when searching for image frames of a microfilm, a mark having a density different from that of the periphery is attached to the side of each image frame of the film, and this mark is displayed while the film is moving. A method in which a desired image is searched for by detecting it, counting it with a counting unit, and stopping the film when the count value matches the frame number of the desired image, and projecting this image on the screen for use. Are known.

By the way, there are various kinds of films, and the recording position of the mark on the image, the size of the mark, etc. are not limited.

FIG. 5 is a view showing a part of the structure of the roll-shaped microfilm and shows four kinds of different kinds of microfilms F _{1 to} F ₄ . In the figure, the frames 1 on which images are recorded are arranged in a line on the microfilm F ₁ , and an opaque frame mark m ₁ is recorded on the lower side of each frame. The frame mark m ₁ is attached to each frame at a position where the distance between the left end (reference end) of the frame 1 and the left end (reference end) of the frame mark m ₁ is l ₁ .

An opaque frame mark m ₂ is recorded on the upper side of each frame 1 on the microfilm F ₂ , and this frame mark m ₂ is at a position where the distance between the left end of the frame 1 and the left end of the frame mark m ₂ is l _2. It is attached to each frame.

Opaque marks m ₁ and m ₃ are recorded on the upper side and the lower side of each frame 1 on the micro film F ₃ , and the frame mark m ₁ is for each frame and the matter mark m ₃ is for the selected frame. It is attached. The case mark m ₃ is attached at a position where the distance between the left end of the frame 1 and the left end of the case mark m ₃ is l _3, and the frame mark m ₁ and the length in the film advancing direction are different.

The micro film F ₄ has opaque marks m ₁ and m ₃ recorded on the upper side of each frame, and the matter mark m ₃ is attached to the first frame of a series of frames related to the image content. ₁
Is attached to other frames. There are various types of microfilms other than the examples. As shown in FIG. 5, the mark recording position, size, mark type, etc. are different depending on the film, and when a search is performed using such a film, the user sets the setting conditions corresponding to the film. You had to enter to set the search mode. For example, the information (distance l ₁ ,
l ₂ , l ₃ ), information indicating the type of mark, film negative,
Inputting information such as transparency or opacity of positive or mark with a keyboard etc. to make the stop position of the image constant,
I was able to detect the mark correctly.
However, there is a problem that the input operation of the setting condition is troublesome, and the setting input operation to the appropriate search mode is forgotten. If you make a mistake in input operation or forget the input operation, the stop position of the image will shift and the image will not be projected at the proper position on the screen. This will cause a problem that cannot be searched correctly.

[Means for Solving Problems] A desired image is obtained by using a plurality of different kinds of microfilms and detecting and counting search marks provided corresponding to each image information on one selected microfilm. In an information retrieval device for retrieving information, a conveying means for conveying a microfilm, a detecting means for detecting a retrieval mark on the conveyed microfilm, a type of the retrieval mark is different for each of the plurality of different microfilms, A card holding unit that selectively holds one of a plurality of memory cards that respectively store different predetermined search conditions corresponding to a plurality of different types of microfilms, and a memory card held by the card holding unit. Controlling the search operation of the microfilm corresponding to the memory card and the reading means for reading the search condition Illustrated by the embodiment shown in order the reading means EXAMPLES drawings the invention.

FIG. 1 shows a microfilm reader printer having an information retrieval device to which the present invention is applied, which is composed of a reader unit R, a printer unit P and a retrieval unit S.

The reader unit R has an optical system (not shown) for projecting a micro film image on the screen 10, and the printer unit P has an optical system (not shown) for projecting a micro film image on a photoconductor (not shown). It has a known electrophotographic image forming means for developing an image on a photoreceptor and transferring it to a copy sheet.

The search unit S is a cartridge receiving unit that detachably holds the cartridge 11 in which the microfilm is stored in a roll shape.
12, a film transport mechanism that transports the microfilm in the cartridge stored in the cartridge storage unit to the take-up reel 13, a mark detector 14 that detects a mark on the microfilm, and a keyboard that inputs search information and the like. 15
Have.

Reference numeral 16 is a card insertion slot of a card receiving section for holding a memory card 17 detachably, which will be described later. The memory card 17 storing setting conditions corresponding to a film to be used is inserted into the card receiving section through the card insertion slot 16. .

FIG. 2 shows an outline of the retrieval unit S, which uses a cartridge containing the microfilm F ₁ . 22 is a capstan roller for sending out the microfilm F ₁ in the cartridge 11; M1 is a motor for driving the capstan roller 22; M2 is a motor for rewinding the film on a film reel in the cartridge; SOL1 is a support. SOL2 is a solenoid that causes the capstan roller 22 to contact the microfilm F via the arm 23, and 24 is a spring that moves the support arm 23, the plunger 23a, and the capstan roller 22 to separate the capstan roller 22 from the microfilm. Film rewinding motor
The brake solenoid for M2.When the brake solenoid SOL2 does not operate, the feed spool motor M2 can rotate.When the brake solenoid SOL2 operates, the brake plate 25 fixed to the motor shaft is attracted to the spool motor M2.
Prevent the rotation of.

26 and 27 are film guide rollers, M3 is take-up reel 13
SOL3 is a brake solenoid for the motor M3 for driving the film.

Also, a cartridge reel 11 and a take-up reel 13 not shown
A guide plate is provided for guiding the film along the film feed passage between the two.

Reference numeral 32 is a lamp for illuminating the micro film F, 33 is a condenser lens, and 34 is a projection lens for enlarging and projecting the image of the film F illuminated by the lamp 32 onto the screen 10 or the photoreceptor.

The mark detector 14 is composed of a first mark detector 14a for detecting a mark on the lower side of the film and a second mark detector 14b for detecting a mark on the upper side of the film. Each of the mark detectors 14a, 14b has a photoelectric conversion element for detecting the presence or absence of a mark, and when the film F is conveyed, the light beam from the lamp 14 is interrupted by the mark m ₁ to emit a mark detection signal. The mark detection signal is counted by the counter. The details of the search device based on the mark signal are publicly known and will not be described.

If you enter the frame number of the desired frame in the input device of the retrieval device, the solenoid SOL1 is actuated with the motor M1 is rotated, in contact with the microfilm F ₁ to capstan roller 22 is out of the Katoritsuji 11 The microfilm F ₁ is pulled out from the cartridge 11, and its tip is conveyed toward the take-up reel 13. When the tip of the microfilm approaches the take-up reel 13, the take-up motor M3 rotates and the tip of the microfilm winds around the take-up reel 13 and when auto loading ends, the motor M1 and the solenoid SO
L1 but becomes inoperative, microfilm F ₁ is subsequently transported by the rotation of the take-up reel 13.

While the microfilm is being conveyed, the number of marks m ₁ detected by the mark detector 14 is counted by the counter and compared with the number of the frame number input in advance. If they match, a stop signal is generated from the counter and the brake solenoid SOL3 Activates to brake the take-up shaft 31, the SOL2 also brakes the shaft of the motor M2 to stop the coasting rotation of the feed spool, the film conveyance is stopped, and the frame image of the designated number is passed through the projection lens. It is projected on the screen.

Figure 3 shows a block diagram of the search control circuit.
Is a reader for reading the information stored in the memory card 17 held in the card receiving section, 41 is a motor drive control circuit for controlling the drive of the film transporting motor and the brake mechanism, 42 is an indicator, and 43 is a microcomputer. In the control section,
It is equipped with a central processing unit, ROM, RAM, and input / output ports.

A mark detection signal from the mark detector 14, an information signal from the memory card read by the reader 40, and a command signal from the keyboard 15 are input to the control unit 43,
It outputs a necessary control signal to the motor drive control circuit 41, a print control signal to the printer section P, and a display drive signal to the display 42.

As the memory card 17, an IC card in which an IC chip is mounted inside the card base material, a magnetic card in which a magnetic material is applied to the surface of the card base material, or the like is used. As for the shape of the card, various shapes such as a rectangular shape, a disk shape such as a floppy disk or a magneto-optical disk can be used.

This memory card 17 stores search information corresponding to the film for setting the search mode.For example, film negative information, image polarity information indicating positive, mark density information indicating transparent / opaque mark, mark Mark position information indicating whether it is on the lower side or upper side of the film, or both, stop position information on the mark recording position (distance l _{1 to} l ₃ ) with respect to the frame, mark length, mark There are stored mark form information indicating the type of the image, film density, information indicating the image taking magnification, and the like. Memory cards are provided corresponding to the films F _{1 to} F ₄ , and each memory card stores the above-mentioned search information unique to the corresponding film, that is, the setting conditions for searching and copying,
The search mode corresponding to the film used is automatically set by mounting the memory card.

 FIG. 4 is a flow chart of the operation.

Next, the operation of this embodiment will be described. Mount the cartridge 11 in the specified position on the search section, and insert the memory card 17 corresponding to the microfilm in the cartridge 11 into the card insertion slot.
Set from 16 to the designated card receiving section. Memory card
When the card 17 is set at a predetermined position, the reader 40 detects the card 17, reads the information stored in the card, and sends this information signal to the controller 43. Upon receiving the information signal, the control unit 43 sets the search mode stored in the memory card on the basis of the information signal at the time of the search, and the film search operation is controlled by the set search mode. Next, the address information (for example, frame number) of the image information to be searched is input to the keyboard 15, and when the search start is instructed, the film is conveyed.

Based on the mark density information stored in the memory card, the control unit 43 determines which of the high level signal and the low level signal output from the mark detector 14 should be counted by the counting unit as the mark detection signal. For example, when the mark is transparent, the high level output signal is counted, and when the mark is opaque, the low level signal is counted. Further, the control unit 43 uses the mark detector based on the mark position information stored in the memory card.
It is determined which of the output signals 14a and 14b should be sent to the counter. That is, in the case of the mark position information corresponding to the films F ₁ and F ₃ , only the output signal of the mark detector 14a is sent to the counting section, and in the case of the mark position information corresponding to the film F ₂ , the output signal of the mark detector 14b. It controls so that only the output signals of the mark detectors 14a and 14b are sent to the counting unit when the mark position information corresponding to the film F ₃ is sent.

Further, the control unit 43 controls so that the image is always stopped at a predetermined position based on the stop position information. That is, the control unit
The 43 ROM has a distance l between the reference edge of the frame and the reference edge of the mark.
_The film stop data corresponding to ₁ , l ₂ , l ₃ ... are stored, and the control unit 43 reads the film stop data corresponding to the stop position information stored in the memory card from the ROM, and uses this stop data to obtain the desired data. The time from the detection of the mark on the image to the stop of the film is determined. In other words, the image is stopped at a fixed position by changing the time from the detection of the mark to the actuation of the brake according to the mark recording position on the frame.
The position correction data corresponding to the distance is stored in the ROM, the film is stopped immediately when the mark of the desired image is detected, and the position correction data corresponding to the stop position information stored in the memory card is then stored. Based on the above, the film may be conveyed in a predetermined direction by a set amount to correct the stop position of the image.

Further, the control unit 43 is controlled so that the mark detection signal output from the mark detector 14 is discriminated and counted according to the mark form information stored in the memory card. For example film
In the case of a memory card using F ₃ , the control unit 43 counts the mark detection signal output from the first mark detector 14a based on the mark form information stored in this memory card in the first counting unit, The mark detection signal output from the mark detector 14b is controlled to be counted by the second counter.

Further, in the case of a memory card using the film F ₄ , the control unit 43 distinguishes the frame mark m ₁ and the matter mark m ₃ according to the pulse width of the mark detection signal based on the mark form information stored in this memory card. Then, the mark detection signal of the frame mark is sent to the first counting section, and the mark detection signal of the case mark is sent to the second counting section. The counting unit is composed of a digital counter set in a predetermined area of the RAM of the control unit 43.

When the desired image is searched, the film stops at a predetermined position based on the stop position information, and the target frame is correctly projected at the predetermined position on the screen.

To copy the image of this frame, operate the print button. When the print command is given, the control unit 43 controls the printer unit P based on the image polarity information, the density information, the magnification information and the like stored in the memory card. For example, the printer unit P changes the polarity of the charging device that charges the photoconductor or operates either the positive developing device or the negative developing device so that a positive copy image can always be obtained based on the image polarity information. Decide what to do.

Further, the density of the copied image is adjusted by controlling the supply voltage of the lamp 32 for irradiating the microfilm based on the density information, and further, the projection magnification of the image is changed based on the magnification information.

The search information provided on the film is not limited to the mark of the embodiment, but a bar code, a number, a character or the like can be used.

Also, the image recording medium is not limited to the microfilm,
An optical disc, a magnetic disc, a magnetic tape or the like can also be used.

[Effect] As described above, according to the present invention, accurate information retrieval can be performed using a plurality of microfilms having different types of retrieval marks, and a memory card corresponding to the microfilm to be used is mounted. It is possible to switch the search condition only by itself, the search operation becomes extremely simple, and it is possible to prevent erroneous search and erroneous operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a microfilm reader to which the present invention is applied, FIG. 2 is a schematic perspective view of a search unit, FIG. 3 is a block diagram of the search unit, FIG. 4 is a flow chart of operation, and FIG. It is a front view of a microfilm. 10 …… Screen, 11 …… Cartridge, 15 …… Keyboard, 17 …… Memory card.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Sugita 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Toshiko Moriya 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon (56) References JP 59-200268 (JP, A) JP 59-200267 (JP, A) JP 60-70461 (JP, A) JP 59-104635 (JP, A) Japanese Unexamined Patent Publication No. Sho 61-208964 (JP, A) Actual Development Sho 57-116943 (JP, U)

Claims (2)

(57) [Claims] 1. Information for retrieving desired image information by detecting and counting retrieval marks provided corresponding to each image information on one selected microfilm using a plurality of different microfilms. In the retrieval apparatus, a conveying unit that conveys the microfilm, a detecting unit that detects the retrieval mark on the conveyed microfilm, a type of the retrieval mark is different for each of the plurality of different types of microfilms, and the plurality of different types of microfilms are different. A card holding unit that selectively holds one of a plurality of memory cards that respectively store different predetermined search conditions corresponding to, and the search conditions stored in the memory card held by the card holding unit. And a reader for controlling the search operation of the microfilm corresponding to the memory card. Based on the search conditions of the memory card read by conveyance stop the microfilm, information retrieval apparatus characterized by comprising a means for controlling the counting of the search mark. 2. The information search device according to claim 1, wherein the search condition is information regarding a shape or a position of a search mark.