JPS61151520A - Information retrieving device - Google Patents

Abstract

PURPOSE:To improve a retrieval speed and to prevent the injury of a recording medium owing to friction by having means for counting the number of information in a group and speeding up the transfer of the recording information from the representative information of the group to the last of the group. CONSTITUTION:Whether the mark of the printed information is a file mark 16 or a page mark 17 is judged and '1' is subtracted from the number N of prints set in a counter 1 if the mark is 16 of file mark information A1. The completion of file printing is completed if N-1 is '0'. The number is compared with the number (n) preset in a counter 2 and is judged if N-1 is not '0'. For example, the certain number (n) is assumed to be '5', then the number of information of the group A is '7' and therefore the number of information is judged to be larger than '5' and the process jumps to opening of a film pressure plate and thereafter the same operation as mentioned above takes place. The number of information is '3' and smaller than '5' in the case of the information group B and therefore the process jumps to the low speed driving of the film by the judgement of the numeral of the counter 2. The film is then driven forward and the detection of 16 of B1 of the file mark group B is started and the above- described sequence is repeated.

Description

[Detailed Description of the Invention] A. Purpose of the Invention [Field of Industrial Application] The present invention searches for a group representative of information recorded on a recording medium such as a film, and searches all of the information of that group.
This relates to a device for blitting out from the final information of that group.

[Conventional technology]

Conventionally, in a search device built into, for example, a film league printer, a representative A of the information group is displayed on the side of each frame AIND2 of the film F, as illustrated in FIG.
Using a film provided with search marks 16 and 17 representing 1, Bl, C1-Di, and respective information, the marks are optically detected and counted to automatically retrieve the desired information. Search and print out as needed.

In this case, when searching for a representative of a group of information and printing out multiple copies of all the information in this group, the method of searching and printing each page requires performing a search operation for each piece of information. The work was complicated.

Therefore, there is a method of sequentially printing out the group's last information, but in this case, printing is repeated from the group's last information to the first information at a constant speed, regardless of the number of desired pieces of information in the group.

[Problem that the invention seeks to solve]

Therefore, in the latter method, it is always necessary to once transport the recording medium from the first representative page to the last page of the group, and when copying multiple copies, the transport operation must be performed multiple times.

In this case, if the transfer speed is low in order to protect the recording medium such as film from scratches, there is a drawback that it takes a very long time. In order to avoid these scratches and transport the recording medium at high speed, the guide, etc. that are close to the recording medium must be removed each time, which has the disadvantage of requiring mechanical durability.

The present invention has been improved in view of the above problems.

1. Structure of the invention [Means for solving the problem] The present invention searches for a group representative of information recorded on a recording medium, and prints out all information of the group starting from the final information of the group. When printing multiple copies of group information, the device has means for counting the number of information in the group, and if the counted value is greater than a preset number, printing information from the group representative information to the last group This information retrieval device is characterized by variable/variable retrieval speed so as to increase transfer speed.

[For production]

Depending on the amount of information (number of pages) in the group, the transfer speed can be switched between low and high speeds, so when the number of pages is large and the conditions are difficult and time consuming, the recording medium is transferred at high speed, and the number of pages is small. When the amount of information does not change much over time, whether it is high speed or low speed, it is transferred at low speed.

〔Example〕

The details of the present invention will be described below with reference to the drawings.

FIG. 1 shows the league section of a microfilm league printer equipped with an information retrieval device to which the present invention is applied. In the figure, l is a supply reel, 2 and 3 are guide rollers, 4 is a lamp that illuminates the microfilm, 5 is a condensing lens, 6Φ7 is a glass plate placed oppositely across the film movement path, and 8 is a capstan roller. , 9 is a pinch roller, and 10 is a take-up reel. The supply reel l and take-up reel lO are connected to a film tensioning and winding motor, and the capstan roller 8 is connected to a film drive motor.

The microfilm F is stretched between the supply reel 1 and the take-up reel 10, and is wound onto the take-up reel or rewound onto the supply reel by driving the capstan roller 8.

11 is a mark detector, 12 is a projection lens, and 13 is a screen.

As illustrated in FIG. 2, the mark detector 11 is configured to be detachably attached to a support base 36 provided on the main body of the apparatus.

A third block 37 having through holes corresponding to the through holes of the second block 29 is fixed to the support stand 36, and a second light guide member 40 made of an optical AM bundle is installed in each hole of this third block.
- 41 and 42 are respectively inserted, and the second light guide members 40 to 42 protrude to the opposite side of the third blow hole 37 through each hole.

When the mark detector 11 is mounted at a predetermined position on the support base 36, the corresponding holes of the second block 29 and the third block 37 face each other, and the end portion 25- of the first light guide member of the mark detector 11 faces each other. 26, 27 and the second light guide member 40.
The end portions 41 and 42 are optically coupled. The second block 29 is fitted into the recess of the third block 37 so that unnecessary light does not enter the joint between the two light guide members from the outside.

The other end surface of the second light guide members 40, 41, 42 is
- They are respectively provided opposite to the light receiving surfaces of photoelectric conversion elements, which will be described later, that receive the light transmitted by the second light guide member. Each photoelectric conversion element is connected to a control circuit described later. When the mark detector 11 is attached to a predetermined position on the support base 36 and the film is moved by driving the film drive motor in response to a search command, the light beam of the lamp 4 incident on the first light guide members 25, 26, and 27 detects the mark. As a result, optical signals are generated in the light guide members 25, 26, and 27, respectively, and these optical signals are transmitted to the second light guide members 40, 41, and 42 through the light guide members 25, 26, and 27, respectively. After that, it is sent to each photoelectric conversion element and converted into an electrical signal.

As shown in FIG. 3, the microfilm F has frames 15 on which images are recorded and the aforementioned marks 16 and 17 attached to the side edges of each frame and having different degrees of coverage. The frames and marks on the film are illuminated by the light from the lamp 4 as they pass between the glass plates 6@7, and the images of the illuminated frames are projected onto the screen 13. In this embodiment, a film with a transparent base and opaque marks 16 and 17 is used, but a film with an opaque base and transparent marks can also be used.

As shown in FIG. 2, the mark detector ti has a movable substrate 21 having an opening 20 and first light guide members 25, 26, and 27 made of optical fiber type. The end portion of the block 22 passes through the through hole and is opposed to the side edge of the opening 20.

The mark 16 is a mark 1 representing a group representing the head information Al@Bl, C1, Dl, etc. of information groups sorted into the same group, that is, a file mark, mark 1.
Reference numeral 7 indicates page marks for counting each piece of information, and these marks are detected and counted by the mark detector 11.

FIG. 4 is an enlarged view of the positional relationship between the marks on the film F and the light guide, and (A) shows the state in which the page mark 17 is detected, with only the light guide 25 blocking the light due to the mark. In (b), the light guides 25 and 26 block the light by the mark 16 in a state where the file mark 16 is detected. The light guide 27 is a light guide to prevent the accuracy of the stop position of the frame from varying depending on the running direction of the film, and is controlled so that the frame always stops at a position where it does not overlap the mark.

The present invention is applied to one or more information retrieval devices, and will be explained below based on the flowchart of FIG. 5 and the information and marks 16-17 of FIG.

If we were to search for the 7-frame group A in the example, we would first search for its file mark 16, and after the film stopped at copy A1, we would specify the required number of print copies N (step 50) (the numbers in parentheses below are step), then N is set in the counter l (51).

Next, when the file printing start is commanded (52) by key operation (not shown), the film pressure plate is opened (53), the film is driven in the forward direction at high speed (50), and the next mark information Bl
Detect the mark 16 that is paired with 55),
Stop the film drive (5B), then close the film pressure plate (57) and drive the film in the opposite direction at low speed 58).
Final information of A file group A7 page mark 1
7 is detected (58), the film drive is stopped and the BO
) Start printing information A7 (81) L. When printing is completed (82), 1 is added to counter 2 to count the number of prints ([13).

Next, the mark for the information you just printed is file mark 16.
If it is a page mark, continue to drive the film F at low speed in the reverse direction (111
9) When the next search mark (17 in example A6) is detected (70), the film drive is stopped (80) and printing is started (81), and the above steps are repeated.

The mark judgment in step (64) is file mark information A.
If it is 18 of 1, set it in counter 1 (51), subtract 1 from the number of print copies N (135), and N-1 becomes 0.
If it is O, it means that the file printing has been completed (88).

If it is not 0, the counter 2 (117) compares it with a preset number n and determines 0. For example, if the number n is
”, then in the example of the present invention, the number of information for group A is “7”.
”, so it is judged that it is larger than “5”, and the distance between the film pressure plates (
The process jumps to step 53) and operates as described above.

In addition, in the case of information B group, the number of information is "3" and n is "5".
'', so by judging the number of counter 2 (87), it jumps to film low speed drive (71), drives the film in the forward direction, and moves the film to 16 of Bl of that file mark B group.
Detection (55) is entered and the above-described sequence is repeated.

FIG. 6 is a block diagram of the present invention, and 80 is a mark detector 1.
Detection signal of file mark 16 detected by 1, 81
82 is a film drive control circuit which controls high-speed drive, low-speed drive, stopping of the film, etc. 8
3 is a printer control circuit that performs control for printing image information on film F; 84 is a search control circuit (CPU
), the film drive control circuit 82 . The printer control circuit 83 is controlled to control the operation according to the fifth @ flowchart.

C1 As described in detail of the invention, when printing out multiple copies of information consisting of multiple pages in each group, if the number of pages in the information group is larger than a preset number (5 in the above examples), By selecting the search speed so that the speed at which the recording medium is transferred from the first page to the last page of the group is high, and when there are few pages, it is transferred at a low speed, it is possible to transfer the recording medium at a high speed when copying multiple copies of a group with a large number of pages. This improves the search speed and prevents damage to the recording medium due to friction.

Furthermore, since the pressure plate (53) and other guides that come into contact with the recording medium may be released only at that time, the durability of the guide advance/retreat mechanism can be increased.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a schematic diagram of the configuration of an example of an information retrieval device implementing the present invention, Fig. 2 is a perspective view of a sensor section of the retrieval device, and Fig. 3 is a diagram of a film serving as an information recording medium. FIG. 4 is a diagram showing the relationship between information and images, FIG. 4 is a diagram showing the principle of reading marks via an optical fiber, FIG. 5 is a flowchart of the present invention, and FIG. 6 is a block diagram. 1 is a supply reel, 4 is a lamp, 5 is a condenser lens, IO is a take-up reel, 11 is a mark detector, 12 is a projection lens,
13. is screen, F is film, 25・26-27
40, 41, 42 are the ends of the light guide member, 15 is information recorded on the microfilm, 16 is a mark representing the head of a group of information, and 17 is a mark representing information.

Claims (1)

[Claims] (1) In a device that searches for a group representative of information recorded on a recording medium and prints out all of the group's information starting from the final information of that group, when printing multiple copies of the group's prints, It has a means for counting the number of pieces of information, and when the counted value is larger than a preset number, the search speed is made variable so that the transfer of recorded information from the group representative information to the last group information is made faster. Information retrieval device.