JPS61175630A - Retrieval device for necessary information part of information projecting device - Google Patents

Abstract

PURPOSE:To retrieve a necessary information part easily and accurately at the position of a projection optical system by displaying retrieval mark position projection images of individual information parts on a display means according to the feeding operation of an information recording medium and making the detection counted value of retrieval mark projection images coincident accurately with address contents. CONSTITUTION:A manual feed dial 17 is operated to feed a film F forward at a proper speed as shown by (a). Information frames and retrieval marks of the film F are projected on the surface of a screen 16 in a length movement state of forward feeding from the 1st information frame successively, and the passing of retrieval frame projection images M' of individual information frames is detected by photoelectric sensors 22 and 23 from the 1st information frame; and detection signals are counted up by a counting circuit 35 successively and its counted value is displayed on the 1st display device 36 momentarily. The current display counted value is positioned at the current position of the projection optical system 10. In another case, the position is coincident accurately with the address contents of a film information frame part being passed currently.

Description

DETAILED DESCRIPTION OF THE INVENTION A1.Object of the invention [Field of industrial application] The present invention is directed to forwarding or reversely feeding an information recording medium on which a large amount of information is sequentially recorded to the position of a projection optical system. The present invention relates to a required information portion retrieval device for an information projection device that searches and locates an information portion at a projection optical system position and projects the information portion onto a reading screen.

[Conventional technology]

A common example of the above-mentioned information projection device is a roll microfilm league or a league printer. This will be specifically explained below using this as an example.

Figure 1 shows the schematic configuration of one example, where 1 is a roll film cartridge attached to a league;
A roll microfilm F as an information recording medium is wound around a rewinding wheel 2 and stored in the cartridge. The roll microfilm F has information frames K as information parts projected and recorded sequentially along the yam on its surface, and a search mark M is attached to the edge of the film corresponding to the position of the information frame of the bond. There is. There are various formats for the search mark M. Fig. 5(a) is an example of the 1-level prep mode with only the page mark M (P), and Fig. 5(b) and (C) are respectively the page mark M (P). P)
- This is an example of a 3-level blip mode in which three types of marks, file mark M (F) - batch mark M (B) are provided.

When you press the autoloading button on the operation panel (not shown), the film feed roller (capstan roller)
3 is rotated in the direction of the arrow.

It also moves toward the film entrance/exit section of the cartridge 1 (to the position indicated by the two-dot chain line) and comes into contact with the front end surface of the film leader tape exposed at the film entrance/exit section of the cartridge. As a result, the film leader tape section is pulled out from inside the cartridge 1 and the film running path 4, 5, 6 is pulled out.
is automatically sent to the film take-up reel 7 side through the
The core of the reel 7 is automatically wound by a mechanism (not shown). When this automatic winding is completed, the film delivery roller 3 moves away from the film surface (solid line water position), and its rotation is stopped, the automatic loading of the film is completed, and the league enters a standby state. In some cases, the above-mentioned film leader tape section is passed from the cartridge L side to the film take-up reel 7 by hand.

8 and 9 are guide plates and guide rollers that constitute the film running paths 4 and 6. The film running path 5 is a gap between two upper and lower platen glasses 13-14 of a projection optical system 10 that is disposed between the film cartridge 1 and the film take-up reel 7 with the optical axis oriented in the vertical direction.

The projection optical system 10 includes a film illumination lamp 11. Condenser lens 12. Above two upper and lower platen glasses 13 and 14
．． Projection lens 15. Optical path changing prism or reflective mirror (
(not shown), a screen 16, etc. Of the platen glasses 13 and 14, the lower glass 14 is fixed, and the upper glass 13 is a movable glass that can be moved up and down with respect to the lower glass 14. During film running, it is lifted upward and held, and the lower glass 14 A film running path 5 is formed between the two. When the film stops running, it moves downward and sandwiches the film between it and the fixed glass 14 on the r side and presses it down.

Reference numeral 7a denotes a rotation drive shaft of the film take-up reel 7, which rotates when the motor Ml is energized, and the reel 7 fitted onto the shaft is rotationally driven in the clockwise direction as indicated by the arrow. Due to this rotation, the film F on the film rewind reel 2 side in the film cartridge 1 is sequentially wound onto the film take-up reel 7 side. The film traveling in this direction is defined as normal film feeding a. Reference numeral 2a denotes a rotation drive shaft of the film rewind reel 2 in the film cartridge L, which rotates when the motor M2 is energized, and the reel 2 fitted on the shaft rotates in the counterclockwise direction as indicated by the arrow. Driven. As a result of this rotation, the films F on the seven film take-up reels are sequentially rewound to the film rewind reel 2 side.

The film traveling in this direction is referred to as reverse feeding of the film.

Then, when the film F is fed normally (a) or reversely, the desired information frame is searched for in the optical path position of the projection optical system 10 (between the upper and lower platen glasses 13 and 14), and then placed at rest. The information frame portion is enlarged and projected Ka as a still image on the back side of the screen 16, and the information content can be read from the outside side of the screen 16. In the case of a league printer, pressing the copy button activates the copying mechanism and outputs a copy of the information frame.

Searching for the required information frame can be done manually.
There are things that can be done automatically.

In the manual type, operate the manual film forward/reverse feed dial 17 to feed the film F normally or reversely at an appropriate speed, and adjust the length of the film in conjunction with the feeding of the film. Using a rough frame number counter (not shown) that adds and subtracts in proportion as a guide, or information frames of the same series (same file) as the target information frame are fed to the 16 screens. First, roughly search at the film speed for the part of the film near the desired information frame by visually following the projected images of the individual information frames that are sequentially projected as the information frame is being projected. Information frame images Ka are projected one after another onto 16 screens by slow-feeding the film.
You carefully follow each piece of information one by one and find the information piece you are looking for. 18 is a motor drive control circuit that controls the rotation, rotation stop, and rotation speed of the reel motors M1 and M2 in accordance with the operation of the dial 17.

The automatic type has a built-in mobile search mechanism consisting of means for reading the search mark M attached to each information frame of the film, an electronic calculation control unit, a mechanical control unit, etc. By simply inputting with an input means such as a numeric keypad and pressing the search key, the film will be automatically forwarded or reversed, searched for the target information frame input and set to the projection optical system 10 position, and the film will be automatically forwarded or reversed. Feeding is stopped.

[Problem that the invention seeks to solve]

Since the manual search formula has the above-mentioned operation procedure, it is time-consuming, troublesome, and has poor workability.

Automatic search formulas allow for quick searches and efficient work. However, the electronic control section, mechanical control section, optical system, etc. that make up the automatic search mechanism are extremely complex, making the league as a whole large and expensive.

The control section uses a microcomputer, etc.
During product development, it is natural to spend a lot of time developing programs, etc.
Costs will be wasted.

On the user side, if the microcomputer built into the device goes out of control or breaks down due to -H noise or the like, it cannot be easily repaired and becomes unusable. Therefore, during product development, a lot of time is often spent on measures to reduce the noise generated due to the operation of the microcomputer of the device.

The present invention has been proposed in view of the above, and it is possible to modify a ready-made manual league machine (information projection device) without any modification.
To provide a required information partial retrieval device that can be used in combination as an ent division, has a simpler and cheaper configuration than a conventional fully automatic type, and is capable of accurately and quickly retrieving a required information portion.

Summary: Structure of the Invention [Means for Solving the Problems] The present invention has a manual operating means for feeding forward or backward feeding an information recording medium on which a large amount of information is sequentially recorded to the projection optical system position. It is removably attached to the screen surface of an information projection device that searches for and positions the required information part of the information recording medium at the projection optical system position and projects it on the reading screen by the operation, and is capable of forward feeding or reverse feeding of the information recording medium. Photoelectrically detects the projected image of the search mark among the projected images of the individual information parts of the information recording medium and the search marks attached to the individual information parts, which sequentially flow and move on the screen surface as a result of the feeding operation. An information projection device comprising: a search mark projection image detection means for detecting a search mark projection image; a means for electrically counting a search mark projection image detection signal from the means; and a display means for displaying the counted value. The gist is a device for retrieving parts of required information.

[For production]

That is, with the above configuration, the search mark projection image detection count value of each information portion currently displayed on the display means as the information recording medium is fed is determined by the projection optical system as the information recording medium is fed. This will exactly match the address contents (information frame number, etc.) for the information part currently located at the system position or currently passing through the position. Therefore, the operator can accurately recognize and judge whether the desired information part is still far away or nearby based on the currently displayed count value of the display means, and if it is still far away, the information recording medium is fed at high speed. You can easily and accurately search for the desired information part at the position of the projection optical system by operating it and, when it gets close, by slow-speed feeding.

Further, the required information partial retrieval device itself consists of a search mark projection image detection means, a counting means, and a display means.

It can be configured as a separate unit from the information projection device for leagues, etc., and by simply attaching and detaching the search mark projection image detection means to the desired position on the screen surface of the device, this device can be easily modified without any modifications. Therefore, you can use your ready-made manual league as an attachment to this machine, and it has a simpler and cheaper configuration than the conventional fully automatic type, and also allows you to search for the required information part accurately and quickly. .

〔Example〕

In FIG. 1, reference numeral 20 denotes a search mark projected image detection means which is detachably attached to the outer surface of the screen 16 of the information projection device. Attach the first and second suction cups 21 of appropriate size made of
The photoelectric sensors (PH) 22-23 of 2 (1) are molded with their light-receiving surfaces exposed on the inner surface of the suction cup. 30 is a circuit box separate from the information projection device, and the circuit inside the box The photoelectric sensors 22 and 23 on the suction cup 21 side are electrically connected via a cord 24.

FIG. 3 is a plan view of the circuit box, and FIG. 4 is a block diagram of the internal circuit. 31 is a group of operation keys for specifying the address of a required information frame, including a numeric keypad 31a, a batch key 31b, a file key 31CΦpage key 314-11
It consists of Archi-31e, etc. 32 is a memory circuit (MW) in which the address of a required information frame designated by the operation of a group of operation keys is stored. Further, the designated address is displayed on the second display (DSP) 34 via the comparison circuit (GOMP) 33. 35 is a counting circuit to which search mark projection image detection signals from the first and second photoelectric sensors 22 and 23 on the suction cup 21 side are input, and the input signals are counted up or down. The counted value is input to the comparator circuit 33 moment by moment and displayed on the first display (DSP) 36.

37 and 38 are first and second alarms controlled by the comparison circuit 33;

A is an amplifier (amplifier) and DSW provided individually as required for the circuit.
39 is a power cord, and SW is a power switch. First and second indicators 3
Reference numerals 6-34 each represent, for example, a liquid crystal display, and the first and second alarms each represent, for example, a buzzer with a different tone. The cords 24 on the first and second photoelectric sensors 22 and 23 are detachably connected to the internal circuit on the operation box 30 side using connectors that can be inserted and removed.

Film F, which is an information recording medium, is set on an information projection device such as a league so that the information frames and the corresponding search mark portions are projected M' (FIG. 1) onto the screen 16. A suction cup 21 serving as a search mark projected image detecting means detects the movement of the search mark projected image M that sequentially flows over the screen 16 as the film F is fed normally and reversely. It is attached to the outside surface of the screen and held in place. In this case, the ring 1 and the second photoelectric sensors 22 and 23 detect the search mark projected image M' on the screen 16.
The suction cups 21 are suctioned to the surface of the screen 16 so that they are lined up front and back in the direction of movement of the projected image when viewed from the movement line. Figure 2 (b
), 25 and 26 are sensor direction reference lines (horizontal line marks) provided in advance on the outer surface of the suction cup 21, and the film F
When the information frame is being fed forward a, the search mark projected image M' of each information frame is detected by the first photoelectric sensor 22 and then by the second photoelectric sensor 23, so that
An identification circuit attached to the counting circuit 35 determines that the film F is in the normal feeding state, so that the counting circuit 35
operates in an up-count state. When reverse feeding is being performed, the search mark projected image M' of each information frame is detected in the order of the second photoelectric sensor 23 and then the first photoelectric sensor 22, contrary to the above relationship. , it is determined that the film F is in the reverse feeding state, and the counting circuit 35 operates in a down-counting state.

For film F, the first information frame is initially the projection optical system 1.
Set the rewind reel so that it is 2 degrees away from the 0 position. The address of the desired information frame is designated and input using the operation key group 31. It is stored in the storage circuit 32 and displayed on the second display 34.

Operate the manual feed dial 17 (Fig. 1) to feed film F.
feed a at an appropriate speed. Accompanying this, the information frames and search marks of the film F are projected onto the 16 screens in order from the first information frame while moving the length of normal feeding, and the search mark projection image M' of each information frame is The moving passages are detected by the photoelectric sensors 22 and 23 in order from the first information frame, the detection signals are sequentially counted up by the counting circuit 35, and the counted value is displayed moment by moment on the first display 36. Ru. The currently displayed count value is currently located at the projection optical system 10 position. Or, it exactly matches the address contents of the film information frame portion currently passing through the position.

The count value of the counting circuit 35 is sequentially compared with the contents of the specified address of the required information frame stored in the storage circuit 32 in the comparison circuit 33, and the count value becomes close to the specified address.
When the difference between the count values for the designated address reaches a difference number preset in the comparator circuit, for example, 5 frames ago, the first alarm 37 is activated to issue a first notification to that effect. The operator reduces the feeding speed of the film F to a low speed by the first notification.Then, when the count value matches the contents of the specified address,
The second alarm 38 is activated and a second alarm to that effect is issued. The operator stops the film feeding at the time of the second notification. As a result, the required information frame portion is searched for at the position of the projection optical system 10, and the projection optical system 10 is placed in a stationary position.

When you have finished reading or copying the searched required information frame part, specify the address of the first required information frame using the operation key group 31, and it will be stored in the memory circuit 32 and displayed on the second display 34. be done. The first display 36 displays a count value corresponding to the address of the previously searched information frame currently located at the projection optical system 10 position.

The operator then selects the next required information frame from the current projection optical system 10.
It is determined whether the information frame exists on the 2nd side of the rewind reel or on the 7th side of the take-up reel than the information frame located at the position, and in the former case, the film F is fed forward again a, and in the latter case If so, send it back. In the case of positive feed a, the counting circuit 35
is continuously incremented using the count value for the previous searched information frame as a base, and the first and second annunciators 37 and 38 notify that the next required information frame has been approached. In the case of reverse feeding, the counting circuit 35 operates to count down based on the count value of the previous searched information frame, and the first and second alarms 37 and 38 indicate when the next required information frame approaches and arrives. will be notified by.

The first and second notifications can also be made by one notification device. The notification can also be made to continue from the time when the difference in the count value with respect to the contents of the designated address reaches a predetermined difference number until the time when they match. The notification may be made only when a match is made, or the notification may be made by giving a weak electrical stimulation to the operator instead of an alarm sound.This is known only to the operator and has the effect of making the surrounding area quiet.

Even if there is no alarm, it is possible to accurately recognize and judge whether a desired information frame portion is still far away or nearby based on the current display count value of the 1 display 36.

If the suction cup 21 has a rough surface on the screen 16 and has poor suction, it is also a good idea to put an adhesive layer on the inside of the suction cup or attach double-sided tape. Figure 6 shows a rubber bulb. In this example, a suction cup with part 21a is used.
Push the rubber ball part 21a to attract it to the screen surface.

The format of the search mark M on the film F side is shown in Figure 5 (
If the form is as shown in Figure 7 (a)
3 bond photoelectric sensor PH, #P) I2 ・PH
By using a suction cup with a built-in
Projected image M' (B) of each search mark on file/page
- Can recognize, detect, and count M'(F) and M'(P) respectively. In addition, if the type is as shown in Figure 45 (C), three photoelectric sensors P)i, P)I2, and PH3 are arranged vertically as shown in Figure 7(b) to detect each one.・Be able to count.

C. Effects of the Invention As described above, according to the apparatus of the present invention, even an inexperienced beginner can easily, quickly, and accurately search for a target information section.

In addition, unlike conventional automatic search methods, it is not necessary to use a microcomputer in the control system, so the time required to develop microcomputer programs during product development is also reduced, measures to reduce noise etc. are also shortened, and equipment configuration is easy,
It can be miniaturized and is very inexpensive.

Furthermore, the same effect can be obtained simply by combining the device of the present invention as an attachment device with a ready-made manual league, etc., and users who are already using a manual league, etc. By installing the device, leagues, etc., can be searched easily and quickly without any modification to the device, and the cost is also reduced.

In addition, by combining this device with a manual league device that has already been developed by the manufacturer, it is possible to configure a device that has the same simple, quick, and accurate search function as above, and the development time is reduced. time is shortened, development costs etc. are also lower,
The price of the device itself can also be made very low.

[Brief explanation of drawings]

FIG. 1 is a schematic structural diagram of an example of a microfilm league using a search device according to the present invention in combination, and FIG. 2(a)
・(b) is a vertical cross-sectional view and rear view of the suction cup, Figure 3 is a plan view of the operation box, Figure 4 is a block diagram of the internal circuit,
Figures 5 (a), (b), and (C) are examples of various formats of search marks, Figure 6 is a partially cutaway side view of another example of a suction cup, and Figure 7 (a) and (b). are shown in Figure 5 (b
)-(C) is an arrangement diagram of a 7-ohm search mark projection image detection photoelectric sensor. F is roll microfilm, 16 is screen, 20
30 is a search mark projection image detection means and an operation box.

Claims (5)

[Claims] (1) It has a manual operating means for forwarding or reverse feeding an information recording medium on which a large amount of information is sequentially recorded to the projection optical system position, and by the operation, the required information portion of the information recording medium is transferred to the projection optical system. It is removably attached to the screen surface of an information projection device that is positioned at a search position and projected onto a reading screen.
Projection images of individual information portions of the information recording medium that sequentially flow and move on the screen surface as the information recording medium is fed forward or backward, and projections of search marks attached to the individual information portions. A search mark projection image detection means for photoelectrically detecting a search mark projection image of the image, a means for electrically counting a search mark projection image detection signal from the means, and a means for displaying the counted value. A required information partial retrieval device for an information projection device, characterized in that: (2) The search mark projected image detection means has at least two search mark projected image photoelectric detection sensors arranged on the search mark projected image moving line on the screen surface in the same projected image moving direction, and outputs from each of these sensors respectively. An identification circuit determines whether the information recording medium is being fed forward or backward based on the output order of search mark projection image detection signals, and when determining forward feeding, the search mark projection image detection signals are counted. A required information partial retrieval device for an information projection device according to claim 1, wherein the means is controlled to be in an up-count state and to be in a down-count state when reverse feeding is determined. (3) It has an address specifying means for the required information part, and a comparison circuit for comparing the address contents specified by the means and the search mark projection image detection signal count value counted by the counting means, and the specified address contents of the former mentioned above. 2. The required information partial retrieval device for an information projection device according to claim 1, which activates the notification means when the latter count value matches the .times..times..times..times..times..times. (4) comprising means for specifying an address for the required information portion, and a comparison circuit for comparing the content of the address specified by the means and the count value of the search mark projected image detection signal counted by the counting means, the specified address content of the former; In the process of the latter count values matching, the first notification is made by the notification means when the difference between the count values and the contents of the specified address reaches a predetermined difference number, and the first notification is made when they match. 2. A required information partial retrieval device for an information projection device according to claim 1. (5) comprising means for specifying an address for the required information portion, and a comparison circuit for comparing the content of the address specified by the means and the count value of the search mark projected image detection signal counted by the counting means, the specified address content of the former; A patent for activating a notification means from the time when the difference between the counted values with respect to the contents of a specified address reaches a predetermined difference number in the process of reaching the latter counted value to match the content of the designated address until the time when the counted value matches. A required information partial retrieval device for an information projection device according to claim 1.