JPH0233140A - Information retrieving device - Google Patents

Abstract

PURPOSE:To shorten a time for retrieving necessary image information by detecting additional information on the total number of frames, sequentially comparing and operating whether or not each counted value coincides with the address of frame by two counting means while referring to the above- mentioned information and stopping a conveying means when any value coincides with said address at the time of retrieving duo film. CONSTITUTION:Counters 40a and 40b for A and B channels are respectively connected to A and B channel mark detection means 27a and 27b and the counted value is incremented or decremented in accordance with the conveying direction of the film every time a mark is detected by the means 27. According to the counted value, the address of a target frame set by an address input means 3 is stored in an address memory 41 and transmitted to a comparison circuit 42. At the same time the information on the total number of frames detected by an additional information detection means 23 is also inputted in the circuit 42, where the specified comparison and operation is executed and the actions of a film conveying mechanism 36 and a channel switching mechanism 34 are decided in a control circuit 43.

Description

[Detailed Description of the Invention] The present invention provides information for searching necessary image information from a microfilm, a so-called duo film, in which images are captured in two rows of channels. The present invention relates to a search device, and particularly relates to an information search device that can shorten the search time for image information.

Microfilm has long been widely used in various fields that can take advantage of its unique characteristics, such as being able to record high-density information and having semi-permanent preservation. ing.

In this microfilm, each image captured in one row of channels has a mark M for counting image frames.
The simplex film FS, 2 shown in FIG.
The film is classified into several types depending on its photographing method, such as the duo film Fd shown in FIG. 9, in which the mark M is attached to each of the images photographed in a row of channels.

Of these, to explain in detail about the Duo Film Fd, images with independent content are captured for each channel, and when searching for necessary information from among them, for example, As disclosed in Japanese Patent No. 51-27131, first, the address of the target frame in which necessary information has been captured is input, and the first channel of the two channels (hereinafter referred to as the A channel) is entered. ), count the image frames in the upward direction, and
If this counted value in a channel does not match the target frame address, then image frames are continuously counted in the upward direction for the second channel (hereinafter referred to as the B channel).

In other words, information is searched for channel A first, and if the target piece does not exist in channel A,
Necessary information is searched by reversing the information search for the B channel.

However, in the conventional information retrieval method described above, when the target frame exists on the B channel in the duo film Fd, the film Fd is first transported to the end of the A channel. After that, the conveyance direction of the film Fd was reversed and the information search for the B channel was performed, which caused a problem in that the feeding operation of the film Fd was wasted and the search time took a long time. .

The present invention has been made in view of the above-mentioned circumstances, and when searching for duo films, additional information regarding the total number of frames is detected by an additional information detection means, and while referring to the detected total number of frames, two columns of An object of the present invention is to provide an information search device that can shorten search time by simultaneously searching for target pieces in channels.

In order to achieve the above-mentioned object, the present invention retrieves image information of a plurality of frames from a duo film recorded in two rows of channels, using a search tag attached to each frame. In an information retrieval device that searches for a target image frame by detecting a mark, an address input means for inputting an address of the target image frame, a conveyance means for conveying the Duo film, and an information retrieval apparatus for detecting the mark by detecting the mark. counting means for independently detecting and counting each channel of the row; additional information detecting means for detecting additional information regarding the total number of frames when searching for the duo film; , comprising a control means for comparing and calculating each count value from the counting means and a piece address from the address inputting means, and controlling the drive of the transporting means based on the result of the calculation. This is an information retrieval device.

HedgeIf the above means is adopted, first, when searching for a duo film, additional information regarding the total number of frames is detected by the additional information detection means. In response to this, the control means refers to the detected total number of frames and performs a successive approximation operation to determine whether or not the respective counts from the two counting means match the frame addresses from the address input means. By doing so, the search for the target piece in the two rows of channels is performed simultaneously, and when it is determined that the target piece address matches the count value of one of the two counting means, the driving of the transport means is stopped. Give commands. This allows the operator to
With the simple operation of inputting the address of the target frame, necessary image information can be searched in a short time.

EXAMPLES Below, an information retrieval device according to the present invention will be explained in detail based on the drawings, using a microfilm reader printer as an example.

FIG. 5 is a schematic configuration diagram of the microfilm reader printer. In this example, a case will be described in which a cartridge type microfilm F is used.

As shown in the figure, the microfilm reader printer has a microfilm F in the main body 1 of this league printer.
It is constructed by connecting an address input means 3 for inputting the address of the target piece.

In this reader printer, there is a reader mode in which the image on the film F held on the film carrier 2 that transports the microfilm F is enlarged and projected onto the screen 4, or a print mode in which the image is enlarged and printed on recording paper using an electrophotographic process. is selectable.

Inside the film carrier 2, as shown in FIG.
A supply reel 5 and a take-up reel 6 are provided, and the microfilm F stretched between both reels 5 and 6 is passed through a plurality of guide rollers 7a to 7c to a pair of glass plates 8a. , 8b. A light source 9 is provided below the glass plate 8, and the light from the light source 9 is condensed by a condenser lens system (not shown), irradiates and transmits approximately the center of the film F in the width direction, and the light is transmitted through the film F. The transmitted light is magnified by the projection lens 22, and an image of the film F corresponding to the magnification is formed on the screen 4 or a photosensitive drum (not shown) via an optical system such as a plurality of mirrors (not shown). It looks like this.

A rotating shaft 10.1 that supports both reels 5 and 6, respectively.
1 is connected to separate motors 14 and 15 via transmission mechanisms 12.13 such as reduction gears, and by driving either of the motors 14.15, the microfilm F is corrected. It is now possible to feed in both directions.

Incidentally, the motors 14 and 15 constitute a film conveying machine '1I436 as a conveying means.

The take-up reel 6 is pivotally supported by the film carrier 2, while the supply reel 5 is housed in a cartridge 16, which is detachably attached to the film carrier 2. Here, regarding the cartridge 16, as shown in FIGS. 3(a) and 3(b), the cartridge 16 is configured to store a roll film wound around the outer periphery of the supply reel 5. This improves the operability when setting or removing the film.

This cartridge is generally A shown in FIG. 3(a).
NSI (American National
5tand-ards In5titude, InC
,) standard type cartridge A and the 3M () lines Ota HininQ & - shown in Fig. 3(b).
(Manufacturing) M type cartridge B. Both of these cartridges A and B engage with a protrusion (not shown) provided at the end of the rotating shaft 10, and an engagement hole 19 formed in the center of the side wall of the reel 17, 18 housed inside. .20, the presence or absence of a leader tape at the tip of the microfilm F, etc., but the opening 21 formed in the side wall of the cartridge
The common feature is that the film F is taken in and taken out.

As shown in the figure, the cartridge 16 used in the present invention has a microfilm F formed by a well-known barcode coding machine or the like on its outer wall in a simplex form or a duo form. A label 22 is affixed to the label 22 on which barcode information containing information about the film, such as whether it is present or not, and total frame number information Kt representing the total number of frames E of the image is recorded.

In order to read the barcode information on the label 22, the barcode information recorded on the label 22 is placed in the main body 1 of the reader printer at a position facing the label 22 when the cartridge 16 is set in the film carrier 2. Additional information detection means 23 such as a barcode reader for reading the information is provided. Further, the film carrier 2 is provided with a limit switch 24 for detecting whether or not the curl ridge 16 is set.

When the rotating shaft 10 is connected to the supply reel 5 when the cartridge 16 is installed, the supply reel 5 is instantaneously rotated counterclockwise in FIG. 2 in order to remove loosening of the microfilm F. Thereafter, the feed belt 25 that is linked to a motor (not shown) comes into contact with the film surface, causing the supply reel 5 to
is rotated clockwise in the figure, and during this rotation, the leading edge of the film F is pulled out by the peeling belt 26 that is in contact with the film surface, and the leading edge of the film F is exposed to both of the pair of glass plates 8a and 8b. It is wound around the take-up reel 6 in a state where the close contact is released. After this, the feed belt 2
5 and the peeling belt 26 are separated from the film surface, and the subsequent conveyance of the microfilm F is carried out as described in 2 above.
This is done by two motors 14 and 15.

Here, in the reader printer according to the present invention, a duo film Fd with a mark M attached to each of the images of both channels A and B can be used as the micro film F, and this duo film In order to shorten the search time when using the Fd, as shown in FIGS. 2 and 4, two mark detection means 27 are provided on the glass plate 8a through which the Duo Film Fd passes. This makes it possible to simultaneously detect marks M in both the A and B channels.

This mark detection means 27 includes an A channel mark detection means 27a made of a light receiving element arranged facing the mark M in the A channel, and a B channel mark made of a light receiving element arranged opposite to the mark M in the B channel. It consists of a detection means 27b. Mark detection means 27a.

27b is photographed in such a way that the mark M that passes sequentially as the duo film Fd is conveyed is darker than the base portion of the film Fd, so that the mark M is temporarily exposed to light from the light source 9 as it passes. In response to blocking the light,
The presence or absence of mark M is detected. Note that when the film Fd is being fed in the forward direction, that is, when the film Fd is being sent out to the take-up reel 6 side, each time the mark detection means 27 detects a mark M, a counter 28a, which will be described later, is activated. , 28b are counted up, and on the other hand, when the film Fd is being fed in the opposite direction, that is, when the film Fd is being rewound to the supply reel 5 side, the mark detection means 27 detects the mark M.
Each time a mark is detected, the counters 28a and 28b count down, and the address of the image frame at the mark detection position can be determined based on this count. Here, the A and B channel mark detection means 27
a, 27b and A, B channel counters 40a, 4
0b constitutes a counting means.

In addition, regardless of the form of the microfilm F, in order to project the target frame approximately at the center of the screen 4, as shown in FIG. A channel switching mechanism is provided for moving the channel.

That is, the film carrier 2 contains the Duo film F.
Three long holes 28a along the width direction of d.

28b and 31 are formed, and guide pins 30a and 30b fixed to the moving stage 29 are inserted into two elongated holes 28a and 28b, respectively, to prevent the film carrier 2 from being removed. There is.

Further, in another elongated hole 31, a rack 30 fixed to the moving table 29 is arranged with a part thereof exposed on the film carrier 2, and a binion gear 32 meshing with this rack 30 is arranged to hold the film. It is interlocked and coupled to a channel switching motor 33 fixed to the carrier 2. When this channel switching motor 33 is driven, the driving force is transmitted to the two moving tables via the binion gear 32 and the rack 30, and as a result, the film carrier 2 is moved along the width direction of the film relative to the moving table 29. You will have to move. Note that the rack 30, the pinion gear 32, and the channel switching motor 33 constitute a channel switching mechanism 34.

The channel switching motor 33 includes this motor 33.
A rotary encoder 35 is attached that converts the rotation speed of the motor into an electrical signal and outputs it.
The output signal from the channel switching mechanism 34 is fed back to a drive circuit of the channel switching mechanism 34, which will be described later. With this, the relative positions of the film carrier 2 and the movable stage 29 are detected, and the positional relationship therebetween is controlled with high precision.

Next, a block diagram of main parts of the reader printer according to the present invention shown in FIG. 1 will be explained.

The aforementioned A and B channel mark detection means 27a, 27
A and B channel counters 40a and 40b are respectively connected to mark detection means 27.
Each time the mark M is detected, the count value is incremented or decremented by one depending on the direction of transport of the film Fd. Note that the A and B channel counters 40a and 40b are configured such that their count values are reset to 0, which is a reference number, each time they receive a set signal output when the limit switch 24 detects that the cartridge 16 is set. It has become.

The count values of the A and B channel counters 40a and 40b are connected to an address memory 41 that stores the address N of the target piece set by the address input means 3 described above, and are detected by the additional information detection means 23 described above. The total number of frames information Kt is input to a comparison circuit 42, where a predetermined comparison operation is executed based on the various input information.

This comparison result is based on the film information If regarding the form of the microfilm detected by the additional information detection means 23 when the limit switch 24 is connected.
is sent to the control circuit 43 to which the film transport mechanism 36 is input based on the various input information.
, and the operation of the channel switching mechanism 34 is determined by calculation,
The result of this calculation is sent to the drive circuit 44, and both mechanisms 36, 34 are driven according to the result of this calculation. Note that the comparison circuit 42 and the control circuit 43 constitute a control means.

Next, the operation of the reader printer according to the present invention will be explained based on the flowcharts shown in FIGS. 6 and 7.

First, when the operator turns on a power switch (not shown) of the reader printer main body 1, various setting values in the control device are initialized and the device is ready for startup (step 1).

After that, when the cartridge 16 is loaded into the film carrier 2, the limit switch 24 detects this and sends a set signal to the control circuit 43. However, if the control circuit 43 does not receive the set signal, the program is transferred to the step controller. Jump (step 2).

Upon receiving the set signal in step 2, the control circuit 43
In step 3), the additional information detection means 23 reads the barcode information recorded on the label 22 attached to the cartridge 16. This barcode information indicates that the microfilm is in simplex form. A storage device (not shown) stores information including film information If, such as whether the film is in the 3D or 2D format, and total frame number information Kt representing the total number of frames E of the image. Further, the control circuit 43 reads out the film information If from the storage device and executes a command to move the film carrier 2 to a position suitable for the form of the microfilm at this time (step 4). Thereby, regardless of the form of the microfilm F, the image of the target frame can be projected approximately at the center of the screen 4.

After step 4 is completed, the control circuit 43 determines whether the address N of the target piece has been input (step 5).
, if the target frame address N is not input, the program returns to step 2, while if the target frame address N is input, the total number of frames, E, is read from the storage device, and the target frame address is read from the address memory 41. Piece address N
is read out, and a judgment is made to compare the sizes of the two at the comparison port Fr1I42 (step 6).

As a result of the determination in step 6, if it is determined that the target piece address N is greater than the total number of pieces E, that is, if there is no corresponding target piece, the control circuit 43 causes a display device (not shown) to display this fact. (Step 7) After this, the program returns to Step 2.

On the other hand, as a result of the determination in step 6, if it is determined that the target frame address N is within the total number of frames E, that is, if the corresponding target frame exists, the control circuit 43 executes the search processing subroutine program. Let it run.

Here, a subroutine program for search processing will be explained based on FIG. 7.

First, the control circuit 43 instructs the drive circuit 44 to drive the film transport mechanism 36, and upon receiving this drive command, the film transport mechanism 36 starts transporting the duo film Fd (step 10).

While the film Fd is being conveyed, each time the A or B channel mark detection means 27a, 27b detects a mark M, the control circuit 43 outputs the target frame address N read from the address memory 41 and the time when the mark M is detected. The comparison circuit 42 makes a comparison judgment as to whether or not the count value of the A channel counter 40a coincides with the count value of the A channel counter 40a (step 11).

As a result of the comparison in step 11, if it is determined that the target frame address N matches the count value of the A channel counter 40a, that is, if the target frame is detected in the A channel, the control circuit 43 , issues a command to the drive circuit 44 to stop the drive of the film transport mechanism 36, and in response to this drive command, the film transport mechanism 3
6 stops the conveyance of the duo film Fd (step 13).

On the other hand, as a result of the comparative judgment in step 11, if it is judged that the target frame address N and the count value of the A channel counter 40a do not match, that is, the image frame with the mark M detected this time is the target frame. If it is determined that it is not, the control circuit 43 sets the target piece address N and
It is determined whether or not the count value of the B channel counter 40b is subtracted from the total number of frames E and the value obtained by adding 1 to this value matches (step 12).

As a result of the determination in step 12, if it is determined that the target frame address N and the value do not match, that is, if it is determined that the image frame with the mark M detected in the B channel this time is not the target frame, The control circuit 43 is
Processing to return subroutine program 1 to step 11 is performed.

On the other hand, as a result of the determination in step 12, if it is determined that the target frame address N and the value match, that is, if it is determined that the target frame is detected in the B channel, the control circuit 43 operates as described above. Then, a command is given to the drive circuit to stop driving the film transport mechanism 36, and upon receiving this drive command, the film transport mechanism 36 stops transporting the duo film Fd (step 13).

In this way, the operator can search in both channels A and B simultaneously by simply inputting the target piece address, resulting in improved operability and reduced search time. can.

When the process in step 13 is completed, the control circuit 43
The step ends the subroutine program and returns the program to the main routine. In step 11, the channel is adjusted so that the center of the image frame existing in the channel where the target frame was detected in step 12 coincides with the optical axis of the light source 9. The switching mechanism 34 is driven to move the film carrier 2 (step 8). When step 8 is completed, the control circuit 43 returns the program to step 2, and repeats the same process.

In this embodiment, a cartridge type microfilm F is used and a label with barcode information recorded is affixed to the outer wall of the cartridge. However, the present invention is not limited to this. Instead, for example, the barcode information may be photographed at the leading end of the microfilm when the microfilm is created, and this information may be read by the additional information detection means. In this way, the present invention can be applied to microfilms other than cartridge types.

As explained in detail above, according to the present invention, firstly,
When searching for a duo film, additional information regarding the total number of frames is detected by the additional information detection means. In response to this, the control means refers to the detected total number of frames and performs a successive approximation operation to determine whether or not the respective counts from the two counting means match the frame addresses from the address input means. By doing so, the search for the target piece in the two rows of channels is performed simultaneously, and when it is determined that the target piece address matches the count value of one of the two counting means, the driving of the transport means is stopped. Give commands.

As a result, an extremely excellent effect is achieved in that the operator can search for necessary image information in a short time by simply inputting the address of the target piece.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of an information retrieval device according to the present invention, FIG. 2 is a perspective view showing main parts of the device, and FIG. 3(a)
, (b) is a schematic configuration diagram of a cartridge used in the device; FIG. 4 is a diagram for explaining the mark detection means in the device; FIG. 5 is a diagram showing the external appearance of the device; 7 and 7 are flowcharts showing the operating state of the apparatus, and FIGS. 8 and 9 are diagrams for explaining the form of the microfilm. DESCRIPTION OF SYMBOLS 1...Microfilm reader printer, 3...Address input means, 23...Additional information detection means, 27a...A channel mark detection means (counting means)
27b... B channel mark detection means (counting means)
34... Channel switching mechanism, 36... Film transport mechanism (transport means), 40a...
・A channel counter (counting means), 40b...
B channel counter (counting means), 42... Comparison circuit (control means), 43... Control circuit (control means), Fd... Duo film, M... Mark.

Claims (1)

[Claims] An information retrieval device that searches for a desired image frame by detecting a search mark attached to each frame from a duo film in which image information of multiple frames is recorded in two rows of channels. , an address input means for inputting the address of a target image frame; a conveyance means for conveying the Duo film;
a counting means for independently detecting and counting each channel of the row; additional information detecting means for detecting additional information regarding the total number of frames when searching the duo film;
While referring to the detected total number of frames, each count value from the counting means and the frame address from the address input means are compared and calculated, and the driving of the transporting means is controlled based on the calculation result. An information retrieval device comprising a control means.