JPS5870374A - Method for counting information frame group of information retrieval device - Google Patents

Abstract

PURPOSE:To prevent shift of an affair number and a counting value, by constituting so that a counting value of the affair number is not changed even if a microfilm is fed or returned in an information frame group of the same affair number, when information is retrieved by an affair retrieving mode. CONSTITUTION:A lot of information frames K (a frame mark Mk is put correspondingly) are provided at constant intervals on a film 1, and an affair mark Mc is put onto the head frame of an information frame group KG which has recorded information of 1 affair portion. From a state that the information frame K with the affair mark Mc is retrieved, in case when a +1 frame key for feeding the information frame K by 1 frame has been operated at least once, it is stored, and in its stored state, the microfilm 1 is moved in the return direction, and when the affair mark Mc has been detected, said stored state is released without changing a counting value of the counter, and when the microfilm has detected the affair mark Mc in its feed direction, said stored state is released by adding 1 to a counting value of the counter. As a result, shift of the actual affair number and the counting value of the counter is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for counting information object groups in an information retrieval device such as a reader printer that searches for desired information frames or information side groups on microfilm.

Such an information retrieval device uses, for example, a negative or positive microfilm as shown in FIG. 1(A).

In this microfilm 1, a starting end leader tape 1a that is latched to a take-up reel (not shown) and a terminating end leader tape 1b that is latched to a reel in the cartridge are connected. A start mark MS (which becomes a reset mark when returning) and an end mark ME are attached.

A large number of information frames 1 are provided on the film 1 between the two marks, in which information is photographed and recorded at regular intervals, and a frame mark MK is attached corresponding to each information frame, and one piece of information is recorded. A subject mark Mc is attached corresponding to the first frame of the information side group KG (generally consisting of a plurality of frames, but one frame may contain information for one item).

Then, the information retrieval device detects the frame mark MK and subject mark Mc of this microfilm 1, and performs a frame search (search for each frame) and case search (search for each group of information frames for one case).
It is now possible to do this.

In other words, send 1 information piece K + 1 piece key, move back 1 piece - 1 piece key, send 1 piece of information piece group KG'' = 1 piece key, 1
Keys for going back by item, numeric keypad for entering the piece number or item number you want to automatically search.

It is equipped with a search key to start an automatic search, a changeover switch between piece search and item search, a counter as a counting means for counting piece numbers or item numbers, and a display to display the count value. The mark MK is counted and the piece number is displayed on the display, and in case search mode, the counter counts the case mark Mc and the piece number is displayed on the display.

In either mode, you can forward and return one frame, and forward and return one item. In addition, you can automatically search by setting the piece number in the piece search mode or the item number in the item search mode with the numeric keypad in advance. It is now possible to do so.

In such an information retrieval device, in the case search mode, that is, the mode in which the counter counts the case marks and displays the case number (the number of the information frame group to which the retrieved information frame belongs) on the display, conventionally, the case mark is simply displayed. The counter was counted up or down depending on the detection.

Therefore, for example, if the information frame group with item number 50 shown in Figure 1 (b) is stopped at the first frame ■<1, the "-1 frame key is operated to advance the microfilm one frame and the information frame is moved to the information frame." After searching for 2, when the -1 frame key is operated to return to the first frame K], the corresponding mark is detected, the counter counts down, and the count value becomes ``49''.

In this way, since the actual case number and the counted value of the counter, that is, the displayed number, are different, there is the trouble of having to preset the actual number and correct the counted value.

This invention was made to solve this problem, and is designed so that the count value of the counter does not change even if the microfilm is sent or returned within a group of information frames with the same case number in the case search mode. The purpose is to

Therefore, the information side group counting method according to the present invention stores the information, and when the microfilm is moved in the return direction and detects the mark in the storage state, the storage state is canceled without changing the count value of the counter. However, when the microfilm is moved in the feeding direction and the mark is detected, the count value of the counter is incremented by 1 to cancel the memorized state, thereby achieving the purpose.

Hereinafter, the present invention will be described in detail with reference to FIG. 2 and subsequent figures of the accompanying drawings.

FIG. 2 shows the external appearance of the main body of the reader printer which is an information retrieval device embodying the present invention, in which 2 is a screen, 6 is a film drive unit for searching microfilm, 4 is an operation panel, and 5 is a copy receiver.

The operation panel 4 includes various switches, as shown in FIG.
Keys, dials, lamps, etc. are arranged.

7 is a power switch that turns on and off the power of the entire machine, 8 is a print switch that performs copying operations, 9 is a paper end lamp that lights up when the photosensitive paper runs out, and 10.11 is the size of the copy. 12 is a toner lamp that lights up when there is no toner, and 16 is a solvent lamp that lights up when solvent runs out.

14 is a +1 frame key for advancing the microfilm frame by one frame, 115 is an 11 frame key for returning one frame, 16 is a search key for issuing a search command signal for searching by film number, and 17 is a film key. Stop key for stopping movement and copying operations, 18 is numeric display 27
This is a clear key that clears the numbers displayed on the screen.

19 is an internal RA of the microcomputer, which will be described later;
A preset key is used to set the number entered on the M frame or counter using the numeric keypad 20. 20 is a numeric keypad used as a number setting means to preset the number you want to search. 21 is a rewind key for rewinding the film. key, 22 is the +1 item key to advance the film by one item, 26
is the 11 item key for returning one item, and 24 is the manual dial for manually forwarding and reversing the film.

25 is a copy density dial for adjusting the density of copies, 2
6 is a number dial for setting the number of copies (this dial does not work at the moment of item copying), 27 is a 4-digit, 7-segment) number display consisting of an LED, and 28 is for switching from piece search mode to item search mode. The search switch 29 used is a copy switch, which is turned on to turn on the print switch 8 when a copy is to be made.

Next, a mechanism for projecting film and making copies by this reader printer will be explained with reference to FIG.

The information frame of the microfilm 1 held down by the pressure plate 62 on the film guide 61 is irradiated with light that has passed through the lamp 64 or the condenser lens 65, passes through the projection lens 66, is reflected on the first mirror 37, and is reflected on the second mirror. 6
8 onto the screen 2. This is the state in which a normal microfilm 1 is inserted and is being projected.

Now, if the print switch 8 in FIG. 6 is pressed, the drive motor (not shown) of the photosensitive paper conveyance system starts to rotate, and at the same time the mirror clutch 41 is turned on, the mirror cam 42 rotates, and the second mirror 68 is turned on. Move to the position indicated by the imaginary line. After the movement, the mirror clutch 41 is turned off. During this time, the roll of photosensitive paper 40 is started and cut into a certain length by a cutter 46.
Charged by the charging section 44, the vacuum belt 4
5 reaches the exposed surface 46''2.

Furthermore, when the print switch 8 is pressed, the lamp 64 that was irradiating the microfilm 1 at this point is turned off. Then, when the photosensitive paper 40 reaches the exposure surface 46, it is temporarily stopped, and the lamp 34 is turned on again to perform static exposure.

When the exposure for a certain period of time is completed, the lamp 64 is turned off, and the photosensitive paper 40 moves again toward the developing section 47. The photosensitive paper 40 that has entered the developing section 47 is developed with a developer, and then transferred to the drying section 4.
It is dried in step 8 and transported to the copy receiver 5. Further, when the exposure is completed, the mirror clutch 41 is turned on, and the second mirror 68 also returns to its original position.

Note that 49 is a reflecting plate that reflects the light emitted by the lamp 640 toward the condenser lens 65.

Next, the film drive unit will be explained with reference to FIG.

A microfilm 1 is stored in a roll 51 within a cassette 50. Set the cassette 50 and press the search key 16. Child key key 14. By operating the +1 key 22 and the manual dial 24 in the feed direction, the solenoid 52 is turned on, the thread roller 56 moves toward the film surface, and at the same time the drive motor 54 rotates.

The drive motor 54 rotates at low and medium speeds.

There are three speed levels. ``A detailed explanation of this speed will be given later.

In the above case, the film is fed at medium speed. The film 1 scraped out from inside the thread roller 56 enters between the drive roller 55 and the press roller 56. When the film 1 is inserted between the rollers 55 and 56, a cab stance inch (hereinafter referred to as "CA, P switch") 57 is turned on.

When the CAP switch 570 is turned on, the solenoid 52 is turned off, and the film feeding force is applied from the drive roller 55. Then, the film 1 passes through the film gate 58 and is wound around the reel 59. 60 is a film holding arm.

Then, when the start mark is read by the mark detector described later, it is selected from medium to high speed (search key when searching for frames after the 20th frame) or low speed (+1 frame key, +1 item key, within 19 frames). (search key when searching for pieces). Thereafter, when the mark detector detects a predetermined mark, the feeding of the film 1 is stopped, and the lamp 34 is turned on to project the stopped frame.

The mark detection section is constructed as shown in FIG.

Then, the microfilm 1 is illuminated by the light of the lamp 64.
The piece mark MK and the piece mark Mc are mirror 61.62
It is reflected by the lens 63, 64, magnified (doubled) by the mirrors 65, 66, and reaches the piece mark detector 67 and the piece mark detector 68. Note that the information on that piece is projected onto the screen 2 in FIG. 4 through the projection lens 36.

As shown in FIG. 7, the piece mark detector 67 is
, A2. Equipped with Bl, B2, and mark detector 68
is sensor A3. It is equipped with B3. Each sensor is specifically a photodiode.

The piece mark detector 67 also serves as a start mark detector and an end mark detector, and its sensors A1. Bt generates a piece mark signal for piece mark counting, and sensor A
, 2. A start mark signal, an end mark signal, and a reset mark signal (when the microfilm is fed in the return direction and a start mark is detected) are generated by B2, At, and Bt. Sensor A3 of the target mark detector 68. B3 produces an issue mark signal.

Note that the microfilm 1 shown in FIG. 1 is used.

FIG. 8 shows a film drive circuit and its input and output signals, and the microfilm 1 is controlled by the drive speed and feed direction of the drive motor 54 (Mt) in FIG. The solenoid 520 is turned on and off in a controlled manner.

Table 1 shows the relationship between the input signal of the film drive circuit 70 and the film advancing direction and speed.

The input signals in FIG. 8 and Table 1 above are as follows. Note that the film is not fed under the conditions marked with * in Table 1.

GO: High speed signal MID: Medium speed signal DOWN: Low speed signal REW: Return signal MSTP: Signal to stop the motor when using manual dial.

CAPSW: ON/OFF signal of CAP switch 57,
It turns on when the film is wedged between the drive roller 55 and press roller 56 in FIG.

MDS: A signal that changes the motor 540 rotation speed according to the position of the manual dial when it is moved.

On the other hand, the direction signal DS in the output signal is '1' in the forward direction and '0' in the return direction.

In addition, the solenoid 52 is connected to the thread roller 5 shown in FIG.
6 is a solenoid for contacting the film 1,
When the CAP switch 57 is off, the maid 52 is on, and when the CA and P switch 57 are on, the solenoid 5
2 is off.

FIG. 9 shows the print control circuit.

When the print switch 8 shown in FIG. 6 is turned on by this print control circuit 80, the motor 81 (M2) for transporting the photosensitive paper is started, and the various parts shown in FIG. A copy of the information piece is made and discharged to the copy receiver 5.

The mirror clutch OFF signal, lamp ON signal, and reprint signal are signals that are input from the search control circuit shown in FIG. , is input instead of operating the print switch to make a copy of the next frame.

FIG. 10 is a diagram showing the relationship between the search control circuit and its input/output signals in this embodiment.

This search control circuit 90 includes a central processing unit (CPU), a ROM as a program memory,
A one-chip microcomputer with RAM, etc., and data memory is used.

In the input system, on/off signals from each operation key or switch of the operation panel 4 shown in FIG. 6 are inputted. Note that the manual switch 91 is a switch that is turned on when the manual dial 24 shown in FIG. 3 is rotated.

The ninth frame switch 92 is a switch inside the machine, and is a frame number selection switch that changes the film speed from high speed to low speed during retrieval. Search control circuit 90, this 9
When the frame switch 92 is off, the speed is switched to low speed before 19 frames, and when it is on, the speed is switched to low speed before 9 frames.

However, even if this 9th frame switch 92 is off, when the item search switch 28 is on, the switch is set before the 9th frame.
Signals from both switches are inputted via an R gate 96.

Further, from the film drive circuit 70 in FIG. 8, a direction signal DS indicating the feeding direction of the microfilm, and a direction signal CA indicating whether or not the microfilm is loaded,
An on/off signal of the P switch is input.

Furthermore, from the print control circuit 80 in FIG.
A paper stop signal PST, which is output when the photosensitive paper stops on the exposure surface, and a print signal P, which is output when the print switch is turned on, are input.

However, the print signal P is inputted via an A N D gate 94 that performs AND with the output of the copy switch 29 so that it is input only when the copy switch 29 is on.

Also, the sensor A1 of the piece mark detector 67 shown in FIGS. 6 and 7. )11. A.2. B2 and sensor A of the mark detector 68, 3. The output signals of B3 are input to the mark preprocessing circuit 95 to discriminate each mark, and produce a start mark signal, an end mark signal, a reset mark signal (a start mark detection signal when the microfilm is sent in the return direction), A piece mark signal and a subject mark signal are output and input to the search control circuit 90.

The positive switch 96 is a switch that is turned on when the loaded microfilm is positive and turned off when it is negative.

As for the output system, as each film drive related output to the film drive circuit 70 in FIG.
, Go (high speed), DOWN (low speed).

Outputs REW (return) and MSTP (motor stop during manual operation) signals.

Also, a mirror clutch OF'F signal and a lamp ON signal are sent to the print control circuit 80 in FIG.

Outputs a reprint signal.

If the operator makes an erroneous operation, an erroneous operation signal 5Ml5S is output and the buzzer 97 is sounded to warn the operator.

Also, in the piece search mode, piece number data is output, and in the item search mode, item number data (counted value by the counter in R, AM or input value by the numeric keypad) is output, and the decoder 98
(decoded by 7 segments) 4 by LE, D
It is displayed on the digit number display 27. In this case, each digit of the numeric display 27 is sequentially and dynamically displayed by the switching signal Sc.

Next, during the operation of the search control circuit shown in FIG.
This will be explained with reference to the operational flowchart shown in the figure.

FIG. 11 shows an outline of the main routine, which starts from the start when the power switch 7 in FIG. 6 is turned on.

Then, first check whether the numeric keypad 20 is on or not, and if YES, jump to the numeric value routine and press the numeric keypad 20.
When the preset key 190 is turned on, the number placed in the display register is preset in the counter.

If the numeric keypad 20 is not operated, then search key 16. +1 piece key 14. -1 piece key 15° + 1 item key 2
2. -1 item key 26. Check the manual switches (switches that are turned on by rotating the manual dial 24) in sequence, and if any of them is operated and turned on,
search routine.

+1 piece routine, -1 piece routine, +1 piece routine, -
The program proceeds to the i-item routine and the manual routine, and performs automatic search, forward one frame, backward one frame, forward one frame, backward one frame, and search by manual dial, respectively.

Note that the rewind routine, copy routine, etc. are not shown.

Among these processing routines, the routine that moves the microfilm in the return direction, that is, -
1 frame routine, -1 item routine.

Search routine when entering the number in the return direction.

In the manual routine when the manual dial is turned in the return direction, the operation -jMsRUTN shown in FIG. 12 is performed.

In this MSRUTN, first GO=
1. Output DOWN-1, REW=1 to move the microfilm in the return direction at low speed. Then, the frame mark is checked, and the process returns to the main routine shown in FIG. 11 to continue the film return operation until the frame mark arrives.

When a piece mark is detected, it is next checked to see if the item search switch is on, and if it is not on, it is the piece search mode, so the counter's divisor value is minus 1 and the process returns.

When the item search switch is turned on, it is in item search mode, so next check to see if there is an item mark. If there is no mark, check the search P/F. This search F/F is a flip-flop circuit (RA) that is set when the search key is operated and reset after the search process.
, one bit in M is assigned).

Therefore, when Search F/F-], the search process is in progress, so do not change the contents of the counter (return). When Search P/F=Q, the search process is not in progress, so next Check F/F'.

For this mark F/F, after stopping the film at the end of each processing routine shown in Figure 1, check whether there is a mark on the stopped frame, and if there is a mark, it is set and released. An example of this is a flip circuit (one bit in RAM is allocated) that is reset.

If this matter mark F/F is set, it means that the previously stopped piece had a matter mark and the next piece does not have a matter mark, so at the same time reset the matter mark F/F, - Set the IF/F and decrement the count value of the counter by -1.

This C-I F/F' is a flip-flop circuit (allocates 1 bit in RAM) to remember that no mark was attached to the information frame when the count value of the counter was decremented by 1. It is.

When the item mark F/F has been reset, since there was no item mark on the previously stopped piece, the process returns without changing the count value of the counter.

As a result, for example, when the counter is stopped at K/1, the first frame (with the case mark Mc) of the information frame group with case number 51 in FIG. 1
If you press the ``Piece'' key, the J ovary will be placed on the information piece and ``3'' will reduce the contents of the counter by 1 to 50, and then press the ``11'' key again. I try not to change the content.

Returning to Figure 12, if the check mark is YES, the information frame with the mark has been searched, so +1 piece F/
If F (described later) is not set, check whether C-1 and F/F mentioned above are set, and if set, reset them, and if not set, change the contents of the counter. -1.

The 11th frame F/F is a Noritsu flop circuit (this is a Noritsu flop circuit) which stores information when a key to send one information frame is operated at least once from a state in which information frames with item marks according to the present invention are being searched. (1 bit in RAM is also allocated)
When the -1 frame key is operated, the PS shown in FIG. 16 at the beginning of the +1 frame routine is set at the beginning of the KOM process.

Then, in the flow shown in Figure 12, when there is an issue mark, this +1 piece F/F is checked, and when it is set, the C-IF/F is checked, and the count value of the counter is changed accordingly. Without +1 piece 11″/
By resetting F and returning, the contents of the counter will not be changed when forwarding one frame and returning one frame in the same information frame group 2, for example, information frame group KG50 in Figure 1 (b). There is.

In addition, in the PSIKOM processing shown in FIG.
After setting /F GO=1. IJ-i DOWN=1
force to move the microfilm in the feeding direction at low speed.

When a piece mark is detected, it is checked whether the item search switch is on or not. If it is not on, it is the piece search mode, and the count value of the counter is incremented by 1. If it is on, it is in case search mode, so check whether there is a case mark.

If there is no subject mark, return without doing anything, and if there is a subject mark, reset the interest P/F' and further C-1'
, F'/P is also reset and the count value of the counter is increased by 1.
Zuro.

By doing this, when there are consecutive information frames with issue marks, from the state where the information frame with issue marks is stopped, the previous information frame with issue marks can be accessed by operating the 11-frame key. When you return to , the counter value is minus 1.
I'm trying to make sure it never goes away.

This +1 frame F/Ti'' is reset when the mark is detected regardless of the moving direction of the microfilm in subroutines other than the +1 frame routine in FIG. 11. Then, when the +1 frame key is operated, Since it can be set, +1 from the state where the information piece with the subject mark is being searched.
If the piece is operated at least once, it will be memorized.

Then, in the stored state (set state), when the microfilm is moved in the return direction and the mark is detected, the stored state is canceled (reset) without changing the count value of the counter, and the microfilm is moved in the forward direction. When a mark is detected, the count value of the counter is increased by 1.
to cancel (reset) the memory state.

As described above with respect to the embodiments, according to the information frame group counting method of the present invention, when the information retrieval device is used in the case search mode, the dividing means is used to display the information frames 23- with the same case number. The counted value does not change, and the actual case number and the counted value do not deviate from 1.

[Brief explanation of the drawing]

Figures 1 (a) and (b) are explanatory diagrams showing an example of a microfilm used in an information retrieval device that is the object of this invention, and Figure 2 shows the external appearance of a reader printer body that is an embodiment of this invention. The perspective view shown in Fig. 6 is the same (the plan view of the operation panel, Fig. 4 is the same).
Similarly, FIG. 5 is a block diagram showing the mechanism for projecting the film and making a copy, FIG. 5 is a block diagram of the film drive unit, FIG. 6 is a block diagram of the mark detection section, and FIG. An explanatory diagram showing the frame mark detector and the subject mark detector in Fig. 6 in correspondence with the piece mark and the subject mark on the microfilm, and Fig. 8 shows the film drive circuit and its input/output body -25-, A-24. - Figure 9 is an explanatory diagram showing the relationship between the print control circuit and its input/output signals; Figure 10 is an explanatory diagram showing the relationship between the search control circuit and its input/output signals; 11 to 16 are operation flowcharts for explaining operations related to the present invention by the search control circuit of FIG. 10. 1... Microfilm K... Information piece KG... Information piece group MK... Piece mark Mc... Item mark Ms... Start mark Mg...・End mark 2・・・・・・
Screen 6...Film drive unit 4.
......Operation panel 5...Copy receiver 7...Power switch 8...Print switch 14...+1 frame key 15...
...-1 piece key 16...Search key 17...
... Stop key 18 ... Clear key 19
...Preset key 20...Numeric keypad 2
1...Rewind key 22-0. -41 key
26...-1 item key 26- 24...Manual dial 27...Numeric display 28...Search switch 29...Copy item Switch 57... CAP switch 67... Frame mark detector 68... Frame mark detector 70... Film drive circuit 80...
・Flint control circuit 90...Search control circuit 27-

Claims (1)

[Claims] 1. Search for the desired information frame by detecting the frame mark attached to each information frame on the microfilm and the item mark corresponding to the first frame of each information side group, and perform the search. In order to display the number of the information group to which the information piece has been retrieved, in an information retrieval device equipped with a counting means for counting the number of item marks, one information piece is selected from the state where the information piece with the item mark is being searched. If the frame advance key is operated at least once, it is memorized, and in that memorized state, when the microfilm is moved in the backward direction and the frame mark is detected, the counted value of the counting means is not changed and the memorized state is restored. and when the microfilm is moved in the feeding direction and an item mark is detected, the counted value of the counting means is incremented by 1 to cancel the stored state.