JPH0310139B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device attached to a film reader, film printer, or the like.

Conventionally, films used in search devices built into microfilm readers and the like are provided with counting marks on the side edges of each frame of the film. Information is now searched automatically.

The above search device illuminates the mark on the film with a lamp, detects the luminous flux from the mark while moving the film with a mark sensor having a photoelectric conversion element, counts the output signal of the mark sensor with a counter, and then A comparator circuit compares the count of the counter and a desired frame number entered from the keyboard, and when the two match, a stop signal is issued from the comparator circuit to the drive control circuit, which stops the drive system for transporting the film. The desired frame is made to stand still at a predetermined position projected on the screen.

There are various types of films used in the information retrieval apparatus configured as described above.

FIG. 1 shows an example of a film used in a retrieval device, in which a film F ₁ has large-sized marks m ₂ classified into a higher rank and small-sized marks m ₁ classified into a lower rank. The mark _m2 is used to search for images classified as a medium item (higher level), and the mark _m1 is used to search for images classified as a small item (lower level). For example, when recording a diagram of the parts of a car on film, the structure of the car is classified into several units, and a mark m ₂ indicating the classification of the middle item is recorded on the side of the frame in which the exploded view of each unit is recorded. ,
Record the component parts diagram, part number, price, etc. of this unit in the frame or frames following the frame in which the exploded diagram of the unit is recorded, and classify small items on the side of each frame in which the parts diagram etc. are recorded. Record the mark m ₁ shown. If you use this film, please mark
If m ₂ is detected, the frame recording the exploded view of the desired unit can be searched, and if mark m ₁ is detected, the frame recording the desired parts diagram, part number, price, etc. in the desired unit can be searched. Can be searched. If one unit is one piece of information, one piece of information consists of one frame or a plurality of frames, and images with related information contents are recorded in a group of frames constituting one piece of information.

Film F ₂ has a small mark m ₁ classified as a lower rank and a medium size mark classified as a middle rank.
There are three types of marks: m ₂ and a large size mark m ₃ classified into a high rank. Mark m ₃ searches for images classified into large items, and mark m ₂ searches for images classified into medium items. , and mark m ₁ is for searching images classified into small items. For example, when recording parts diagrams of various automobiles on film, three types of marks can be selectively recorded on the sides of each frame so that the model of the automobile, exploded view of the unit, and component diagram can be searched. When using this film, if mark m ₃ is detected, the configuration diagram of the desired car will be displayed, if mark m ₂ is detected, the desired exploded view of the unit will be displayed, and if mark m ₁ is detected, the desired parts diagram, etc. will be displayed. Can be searched.
Hereinafter, mark m ₁ will be referred to as a frame mark, mark m ₂ will be referred to as a subject mark, and mark m ₃ will be referred to as a cross mark. When performing an information search using such a film, images of a desired classification item can be automatically searched for by counting the marks of the selected classification.
For example, by counting the number of cross marks, it is possible to search for a desired group of frames, and by counting the cross marks, it is possible to search for a desired group of frames.

In addition to the method of searching for desired information using automatic search, if the address of a lower-class frame in the desired information is unknown, use the lower-class mark to search for the frame with this mark. There is a method of searching for a desired frame by intermittently transmitting frames one by one and sequentially observing the images of each frame belonging to a lower classification on a screen (hereinafter, this search method is referred to as a browsing search). If you want to use this browsing search to find the desired image by observing a group of frames included in a desired subject (or batch) one frame at a time, stop the film for a certain period of time each time a frame mark (or subject mark) is detected. , the film is fed after a certain period of time, and when the next frame mark (or subject mark) is detected, the film is stopped for a certain period of time, and the above operation is repeated for each frame, but by mistake, the required image If the user overlooks the image of a group of frames of another item (or batch), the user may observe images of other items (or batch) sequentially, or the entire film has been sent. There was an inconvenience in that it became clear that the desired image had been overlooked.

The present invention solves such inconveniences in conventional information retrieval devices and prevents users from viewing other items or batches while browsing for a desired item or batch. The purpose is to prevent search work. Therefore, in this invention, marks of the lower first classification are detected,
When the film feed is controlled based on the detection signal, a means is provided to stop the film when a second mark of a higher classification than the first classification is detected, thereby preventing erroneous retrieval operations. It is something.

The present invention will be explained below using specific examples.

FIG. 2 shows a film feeding section of a film reader with a retrieval device to which the present invention is applied. In the figure, 1 is a large number of image frames f and marks m ₁ ,
The microfilm shown in Figure 1 with m ₂
A removable film supply cartridge that stores F ₁ in the form of a roll, 2 a micro switch that detects when the cartridge 1 is installed in a predetermined position of the film reader, and 3 a cap that feeds out the micro film in the cartridge 1. A stun roller 4 is a film feeding motor that rotates the capstan roller 3, 5 is a film winding motor that rotates the film spool in the cartridge, and 6 is a film winding motor that brings the capstan roller 3 into contact with the microfilm F. This is a solenoid that moves the microfilm to a position away from the microfilm.

7 ₁ and 7 ₂ are film guide rollers, 8 is a film take-up reel, and 9 is applied pressure toward the center of the take-up shaft of the take-up reel 8 by a spring 10;
This guide roller is used to securely wind the leading end of the film around the take-up shaft of the take-up reel 8.

11 is a film winding motor for rotating the winding reel 8; Although not shown, a guide plate is provided for guiding the film along a predetermined film feeding path between the cartridge 1 and the take-up reel.

In the above configuration, when the motor 4 is driven and the solenoid 6 is operated, the capstan roller 3
rotates and moves to a position where it contacts the microfilm _F1 , and the tip of the film is fed out from the cartridge 1 due to the contact between the capstan roller 3 and the microfilm, and the film F is transferred along a predetermined path to the take-up reel. 8. Feeding in this direction is called forward movement. When the leading edge of the film passes the guide roller ₇₂ , a film detector (not shown) detects the microfilm, and this detection signal drives the motor 11, causing the take-up reel 8 to rotate.

When the leading end of the film F ₁ is fed to the take-up reel 8, the leading end of the film is automatically wound around the take-up shaft of the take-up reel 8 by the action of the guide roller 9. When the film F ₁ is wound around the take-up reel 8, the motor 4 and solenoid 6 become inactive, and the capstan roller 3 separates from the film and returns to its original position. When the leading end of the film is wound around the take-up reel 8, the film F is transferred from the cartridge 1 to the take-up reel 8 by rotation of the take-up reel 8. When rewinding the microfilm _F1 into the cartridge 1, the motor 11 is deactivated and the motor 5 is driven.The film spool in the cartridge 1 rotates in the direction of winding the film, and the film is rewound into the cartridge 1.
will be rewound. Sending in this direction is called retreat.
Therefore, by driving either motor 5 or 11, the film can be moved forward or backward.

12 is a lamp that illuminates the microfilm _F1 ;
13 is a condenser lens; 14 is a projection lens for enlarging and projecting the image of the film _F1 illuminated by the lamp 12 onto a screen (not shown); and 15 is a counter provided on the side of each frame of the microfilm _F1 . This is a well-known mark detector that detects the marks m ₁ and m ₂ . The mark detector 15' has a photoelectric conversion element, and when the film _F1 is fed, the lamp 12
A signal is output when the light beam from the film is interrupted by the mark, and when the frame mark _m1 on the film is detected, a frame mark signal is output, and the frame mark is detected.
Outputs an item mark signal when m ₂ is detected.

FIG. 3 shows an input device provided in the operating section of the reader-printer. The input device 16 is electrically connected to the search device main body via a cable. A display section 18 displays the address of the frame currently being searched, that is, the frame number, case number, or batch number, and in this example, it is an 8-digit display using LEDs.

19 is a numeric key for inputting the address number (frame number, case number or batch number) of the image to be searched, 20 is a browsing key for instructing a browsing search, and 21 is a + key for instructing to advance the film by one frame. When browsing and searching, it acts as a key to command the film to move forward. Reference numeral 22 is a - key for instructing to move the film backward by one frame, and during browsing search, it functions as a key for instructing to move the film backward. 23 is a search key for instructing the start of a search.

FIG. 4 shows a block diagram of the retrieval device, in which the output signal of the input device 16 and the output signal of the mark detector 15 are sent to a control circuit 23 consisting of a computer. The control circuit 23 controls the driving of the motors 4, 5, and 11. The frame mark signals output from the mark detector 15 are counted by a frame mark counter 25, and the subject mark signals are counted by a subject mark counter 26.

FIG. 5 shows a flowchart of the main routine of the search device. When a power switch (not shown) is turned on, the control circuit 23 sets the device to the off state.

Next, check whether you have operated number key 19,
When the key 19 is operated, the routine jumps to a number setting routine, and the number entered using the numeric keys 19 is displayed on the display 18. If the numeric key 19 is not operated, it is checked whether or not the keys 20, 21, 22, and 23 have been operated, and if any one is pressed, the program jumps to the respective routine and performs a predetermined search process. Among these processing routines, the browsing routine is shown in FIG. After searching for the first frame of the information for the desired item, press the browsing key 20, then press the + key 2.
If you press 1, the film will stop for 1 second (1
(Although it is not limited to seconds, for convenience of explanation, it will be set to one second.) Next, the motor 11 is driven to advance the film. It is checked whether the mark detector 15 has detected a mark while moving forward. When the mark detector 15 detects a frame mark, the film is stopped for one second. Observe the image on the screen during this 1 second pause period. After one second, the film moves forward again, and when the mark detector 15 detects the next frame mark, the film stops again for one second, and thereafter the above-described operation is repeated. As a result, each time a frame mark is detected, it is stopped for one second and then moved forward. If the mark detector 15 detects a mark while the film is being advanced, driving of the motor 11 is prohibited, the film is stopped, and the process returns to the main routine. Therefore, for example, when browsing and searching for each frame of a desired subject, the film stops when a mark of a higher classification, that is, a subject mark of another subject, is detected, and the user is notified that the desired frame has been overlooked. Let me know. In this case, the user may press the browsing keys 20 and 22 to perform a browsing search again and find the desired frame that was overlooked. When the - key 22 is operated, the operation is the same as that of the + key 21 except for retracting the film, so a description thereof will be omitted.

In the above embodiment, the browsing search is performed using a film with two types of marks.
The present invention can also be applied to a case where a browsing search is performed using a film having three or more types of marks. For example, after searching for information on a desired batch, if you want to browse and search for information on a desired item within this information, detect the item mark and sequentially search for the frames with the item mark in the same way as described above. When a cross mark is detected, the film feed is stopped, thereby preventing sequential searches for frames of different batches, thereby preventing an incorrect search operation from continuing for a long time.

As described above, when images of each frame are sequentially searched using marks of a lower classification of desired information, by stopping the film when a mark of a higher classification than this classification is detected, This eliminates the need to sequentially search for images in different classification categories, which shortens search time and helps prevent search errors.

[Brief explanation of the drawing]

FIG. 1 is a front view of a microfilm applied to the present invention, FIG. 2 is a perspective view of a film feeding section of a reader with a search device, FIG. 3 is a front view of an operating section, and FIG.
The figure is a block diagram of the search control circuit, Figures 5 and 6.
The figure is a flowchart of the search operation. 1... Cartridge, 8... Take-up reel, 4,
5, 11...Motor, 15...Mark detector, 2
0...Browsing key.

Claims (1)

[Claims] 1 A first mark attached to a selected image of a film on which a large number of images are recorded, and a classification higher than the first mark attached to a predetermined image of each group of images. a transfer means for transferring a film having a second mark; a first detection means for detecting the first mark; a second detection means for detecting the second mark; transfer control means for controlling the transfer means to repeat the operation of stopping the film when detecting the film and transferring the film after a certain period of time;
An information retrieval device comprising means for prohibiting film transport when the second detection means detects a second mark during film transport.