JPH03134640A - Picture position display method for microfilm reader - Google Patents

Abstract

PURPOSE:To enable a document, etc., to be retrieved with a sense of paging a book by reading the blip of a whole film when a cartridge is loaded, storing the blip and displaying the position of an image under reading in a group according to a rate. CONSTITUTION:When a cartridge 8 is loaded, the whole film is once taken up and blips 6a and 6b are read. A CPU 2 calculates the number of pages included in respective blocks and files by block/file/page counter means 122, 124 and 126 and stores the number in a memory 110A. Afterwards, when the objective image is retrieved, the CPU 102 reads out the total number of frames in the block or file including the target frame from the memory 110A and a rate for the count value of the means 126 to the total number of frames is calculated by a rate calculating means 128 and numerically or graphically displayed on a display panel 118. Thus, the rough position of the image can be easily known and the document, etc., can be retrieved with the sense to page the book.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides an image position for displaying the position of a currently displayed frame within a group that includes the currently displayed frame when searching using blips. This relates to display methods.

(Technical Background of the Invention) There have conventionally been microfilm reader printer devices capable of displaying the address within the film of the image being displayed. This address is usually indicated by a blip (document mark), and is recorded hierarchically, for example, in three groups: large, medium, and small.

FIG. 6 is a diagram showing the form of the roll microfilm 2. Blips 6 (6a, 6b) for retrieval are imprinted on the top and bottom of each frame 4 of the film 2. These blips 6 are used to identify three levels, large, medium, and small, by changing their vertical positions and widths, and these are, respectively,
It shows a block that shows the volume of a book or one volume, a file that shows the chapters in this block, and a page that shows the order in this file. Conventional devices display the address using block numbers, file numbers, and page numbers.

However, when an operator performs a manual search, he or she may want to know the approximate search position within a block or file. For example, when searching based on a vague memory, such as wanting to see images near the middle or back row of a certain group, you can easily read images near the target page just like turning the pages of a book when searching for literature. It's possible and convenient.

(Objective of the Invention) The present invention has been made in view of the above circumstances, and is capable of displaying the order of read images in a predetermined group such as a block or file, that is, the ratio of pages to the total number of pages in the group. The object of the present invention is to provide an image position display method that allows users to easily know the approximate position of the displayed image within a group, and to search for documents as if they were flipping through a book. .

(Structure of the Invention) According to the present invention, the object is to provide an image position display method in a microfilm reader capable of searching using blips attached to each frame, which is characterized by having the following steps: ( al Step of winding the microfilm once when loading the cartridge to determine the number of frames included in each group and storing it in memory: (b) Step of reading out the rank of the displayed frame in the group including this frame; (c ) reading the total number of frames in the group including the currently displayed frame from the memory; (d) the ranking of the displayed frames determined in step (b);
Step of determining the ratio to the total number of frames determined in step (c); fe) Displaying this ratio on the display means.

This is achieved by

(Embodiment) Fig. 1 is an overall schematic diagram of one embodiment of the present invention, Fig. 2 is a perspective view of the same, Fig. 3 is a system diagram of its control signals, and Fig. 4 is a concept showing only the main parts. FIG. 5 is an operation flowchart.

The roll microfilm 2 used in this embodiment is stored in a cartridge 8 (FIGS. 1 to 3) and loaded into the league printer device 10.

The league printer device 10 is configured as shown in FIG. That is, the front of the case 12 (right side in Figure 1)
A transmissive screen and lean 14 are arranged at the front, and the image of the frame 4 of the cartridge 8 is projected thereon in an enlarged manner. The cartridge 8 is loaded into a loading section 16 located below the screen 14.

The leading end of the film 2 wound on the supply side reel 18 in this cartridge 8 is pulled out by the loading mechanism, and the single reel 1 is wound on the take-up side reel 20.
A light source 22 is arranged below between 8 and 20. The light emitted from this light source 22 passes through the film 2 and passes through the projection lens 2.
4. Image rotating prism 26, multiple reflective mirrors 28.3
The light is guided to the screen 14 through an optical system such as 0.32 mm. As a result, the image information recorded on one frame 4 of the film 2 is enlarged and projected.

A mirror 34 that can be moved forward and backward on the optical axis is provided between the reflection mirrors 28 and 30, and during printing, image projection light is directed to the plink device 3 located below by this mirror 34.
This printer device 36 is, for example, of the PPC type, and forms an electrostatic latent image of an image by exposing a photosensitive drum 36a (see FIG. 3), and toner is attracted to this latent image. This visualizes the image, transfers it onto printing paper, and fixes it. Further, this printer device 36 is provided with a masking device 38 that blocks the incidence of projection light, and particularly blocks the incident light that creates a black frame portion in the image in the case of a negative film.

The film advance mechanism is shown in FIG.

When the cartridge 8 is loaded into the loading section 16, the microswitch 40 detects this, and the CPU 102 (described later) activates the loading mechanism.

That is, a roller (not shown) is brought into rolling contact with the reel 18 through an opening 8a provided at the bottom of the cartridge 8, and the leading edge of the film 2 is pulled out and wound onto the take-up reel 20 via guide rollers 42, 44. Sensors 46, 48 for detecting the presence or absence of the film 2 are arranged near the guide rollers 42, 44.

An endless belt 50 is pressed against the take-up reel 20 and tightly contacts the film 2 being wound there. This endless belt 50
are guide rollers 52, 54, 56 and drive rollers 58
is wrapped around. The drive roller 58 is driven by a motor 60 and causes the belt 50 to run in the direction of arrow A, that is, in the winding direction. As a result, the film 2 is wound onto the reel 20 while being sandwiched between the belt 50 and the reel 20. Note that the rotation shaft of the motor 62 is automatically connected to the supply reel 18 when the cartridge 8 is loaded. The film 2 is rewound by driving the reel 18 in the direction of arrow B by the motor 62. At this time as well, the belt 50 runs together with the film 2.

A tension roller 64 is pressed against the endless belt 50 with a predetermined pressure to apply appropriate tension to the belt 50.

The rotation speed of the tension roller 64 is detected by an encoder 66. Based on the output pulse signal of the encoder 66, the running amount of the endless belt 50, that is, the running amount of the film 2 is determined by the CPU 102, which will be described later.

The blip 6 provided on the film 2 includes two sets of light emitting elements 68 (68a, 68b) and light receiving elements 70 (70a, 70b). Here, out of the light emitted from the light emitting element 68, only the light passing through the blip 6 is selected by the slit 72 and guided to the light receiving element 70. The outputs of these light-receiving elements 70 are input to the CPU 102, and by integrating the types of blips 6 and the number of blips 6 that have passed, the frames 4 that have passed under the light-receiving elements 70 are identified. Since the distance between the detected position of the blip 6 and the optical axis C is constant 2, by monitoring the amount of film travel detected by the encoder 66, the frame 4 being projected can be identified. That is, when the blip 6 of the target frame 4 is detected, the target frame 4 will be placed within the optical axis C by feeding the film 2 further toward the take-up reel 20 by a distance from there.

The image information of the target frame 4 that has entered the optical axis 'C in this manner is projected onto the screen 14. Here, the magnification of the projection lens 24 is variable by a motor 74, and the rotation angle of the image rotating prism 26 is variable by the motor 76 (FIG. 3).

Behind the screen 14, the CCD line sensor 78 is held by a movable plate 80, and the movable plate 80 is movable left and right on guide rails 82 and 84. This movable plate 80 has a pair of pulleys 86.8 as shown in FIG.
Both ends of the wire 90 wound around the wire are fixed.

The pulley 88 is rotated by a motor 92, and a wire 90 running therewith moves the movable plate 80 left and right.

Next, the control device 100 will be explained based on FIG. The control device 100 includes a digital processing unit (hereinafter referred to as CPU) 102 and human/output interfaces (I/F) 104 and 106.
, a ROM 108 for storing operating programs, etc., and a RAM 110 for storing image signals read by the line sensor 78, various data, etc. Various signals are input to the CPU 1o2 via the input 1/F. For example, the image signal a read by the line sensor 78, the output signals of the microswitch 40, the sensor 46, 48, the light receiving element 70, the encoder 66, etc. is input. Also keyboard 11
2, the identification code of the target image or the identification code of the image to be printed is also input.

Reference numeral 114 is a manual speed setting device for inputting the feeding direction and feeding speed of the film 2.

The operation knob 116 of the speed setter 114 has a tendency to return to the neutral position, and when it is rotated from the neutral position to either the left or right, the amount of rotation is input to the CPU 102. C
The PU 102 controls the feeding direction and speed of the film 2 in accordance with the direction and amount of rotation of the operation knob 116 from the neutral position.

That is, when the operating knob 116 is at the neutral position, the film 2 is stopped; when turned to the left, the motor 60 is activated and the film 2 is moved to the left in FIG. 3; when turned to the right, the motor 62 is activated and the film 2 is moved. Drive to the right.

118 is a liquid crystal display board as an image position display means;
As will be described later, the position of the image within the group that includes this image is displayed in %. In other words, the number of frames in each group is memorized, and the order of each frame is determined by blip 6.
are calculated using these and the display board 11
8.

120 is a digital printer that prints images read by the line sensor 78 as needed, or connects the CPU 102 to another reader printer and prints images sent from other devices to this printer 120. You may also output it.

The CPU 102 has the function shown in FIG. 4, and calculates the number of frames included in each group of blocks or files of the film 2. That is, when the cartridge 8 is loaded, the entire film is wound once onto the roll 20, and the blip 6 is read at this time (FIG. 5, step 200).Based on the output of the light receiving element 70 at this time, the CPU 102 reads the built-in block. The counter means 122, the file counter means 124, and the page counter means 126 block,
The files and pages are counted, the number of pages (number of frames) included in each block and file is determined, and this result is stored in RAM110 or a separate memory 11.
It is stored in 0A (step 202). The operator then searches for the target image (step 204), while the CPU 102 reads the blip of the frame being displayed and counts it in each counter means 122, 124, 126 (step 206), while the CPU 102 determines whether this frame is included or not. The total number N of frames in the block or file to be stored in memory 11
0A (step 208), and the ratio calculating means 128 calculates the ratio of the count value n of the page counting means 126 to the total number N of frames, for example (n/N) x 100%, and the result is expressed as a numerical value. , or displayed on the display board 118 in the form of a graph (step 212).

The display board 118 is designed to be able to switch between displaying the image position within each block as a percentage and displaying the image position within the file as a percentage, or to display both at all times. is desirable.

According to this embodiment, when sending a file in reverse,
Even when an image is inserted into another block or file, the total number N of frames in the newly entered block or file can be immediately detected from the memory 110A, so it is possible to always display the image position according to the above ratio.

(Effects of the Invention) As described above, the present invention reads the blips of the entire film once, stores the number of frames included in each block, file, etc. group, and stores the position of the image being read within this group. Since it is displayed based on the ratio, it is possible to easily know the approximate position of an image within a group, and it has the effect that searching for documents can be performed as if turning the pages of a book.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram of an embodiment of the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a system diagram of its control signals, FIG. 4 is a conceptual diagram showing only the main parts, and FIG. The figure is an operation flowchart, and FIG. 6 is a diagram showing a microfilm. 2... Microfilm, 4... Frame, 6... Blip, 8... Cartridge, 10...
League printer device, 110A... memory means, 118... display board as display means, 122... block counter means, 124... file counter means, 126... page counter means, 128... Ratio calculation means.

Claims (1)

[Claims] In a microfilm reader capable of searching using blips attached to each frame, an image position display method characterized by having the following steps: (a) When loading a cartridge, the microfilm is A step of winding the film once and calculating the number of frames included in each group and storing it in memory; (b) A step of reading out the rank of the displayed frame in the group that includes this frame; (c) A step that includes the currently displayed frame. (d) reading out the total number of frames in the group from the memory; (d) the ranking of the displayed frames determined in step (b);
Step of determining the ratio to the total number of frames determined in step (c); (e) Displaying this ratio on the display means.