JPS5846469A - Information retrieval device - Google Patents

Abstract

PURPOSE:To improve operability by detecting and storing an end mark added to the end part of a microfilm, and holding the storage contents and inhibiting a frame advance until a start mark is detected by rewinding the film. CONSTITUTION:Leader tapes 1a and 1b are connected to the start part and end part of a microfilm 1, and a start mark MS (used as a reset mark during rewinding) and an end mark ME are added there. When the end mark ME is detected by winding the microfilm 1 from a film reel, the detection of the end mark ME is stored in a storage device. The storage contents are held until resetting is done by rewinding the film 1 until the start mark MS is detected. A frame or subject advance is inhibited until the storage is released. Thus, operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device such as a reader printer capable of performing frame retrieval for retrieving each information frame of a microfilm and item retrieval for retrieving a group of information frames for each winter crop.

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

This microfilm 1 has a starting end leader tape 1a that is hooked to a take-up reel (not shown) and a trailing end leader tape 1b that is hooked to a reel in the cartridge. A start mark (which becomes a reset mark when returning) Ms and an end mark ME are attached.

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

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

In other words, information piece Kel piece forward + 1 piece key, 1 piece back -
l frame key, +1 item key to send the information frame group KG by 1 item, 11 item key to go back by 1 item, numeric keypad for entering the piece number or item number you want to automatically search.

Equipped with a search key that starts an automatic search, a rewind key that rewinds the microfilm, a stop key that stops film movement completely, a switch between frame search and item search, a counter and a display that displays the count value, etc. In the mode, the counter counts the piece marks MK and displays the piece number on the display, and in the case search mode, the counter counts the piece marks Me and displays the piece number 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.

' Furthermore, when the microfilm 1 is fed to near the end, the end mark ME is detected, and the feeding drive of the microfilm is thereby stopped.

However, with conventional information retrieval devices, it is impossible to
By operating either the piece key or -1 item key, the rewind key, or the search key after entering the number in the backward direction, the microfilm is driven in the backward direction and the first (last in the forwarding direction) information is displayed. The first step until the piece is searched
In the section indicated by a in the figure, operate the stop key to stop the return drive of the microfilm, and then press the +1 frame key.
When a key in the forwarding direction, such as the +1 item key, was operated, the microfilm was forwarded until the end mark ME was detected again, which was a wasteful operation.

This invention was made with attention to the above point, and the +1 frame key or +1 item key is operated after the end mark is detected and before the first frame mark is detected by the return operation of the microfilm. The purpose is to disable that function and eliminate unnecessary film advance operations when the film is moved.

Therefore, the information retrieval device according to the present invention memorizes the end mark provided near the end of the microfilm when it is detected, and releases the memory when the microfilm is returned and the first frame mark is detected. By providing a memory means for storing the detection of the end mark, and a key manual invalidation means for disabling the function when the 11 frame key or the +1 key is operated while the memory means stores the detection of the end mark, This achieves the above objectives.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 shows the external appearance of the main body of the reader printer, which is an information inspection apparatus 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 is provided with various switches, keys, dials, lamps, etc., as shown in FIG.

7 is a power switch for turning on and off the power of the entire machine; 8 is a print switch for copying; 9 is a paper end lamp that lights up when the photosensitive paper runs out; 10. 12 is a toner lamp that lights up when the toner runs out, and 16 is a solvent lamp that lights up when the solvent runs out.

14 is the +1 frame key to advance the microfilm frame by one frame, 15 is the 11 frame key to go back one frame, 16 is the search key to issue a search command signal to search by film number, and 17 is the film number key. Stop key for stopping movement and copying operations, 18 is numeric display 27
It is a clear key that clears the numbers displayed on the screen.

19 is a preset key for setting a number entered using the numeric keypad 2o into a piece or counter of the internal RAM of the microcomputer, which will be described later. 2o is a numeric keypad used as a number setting means to preset a number to be searched. , 21 is a rewind key for rewinding the film, 2
2 is the +1 item key to advance the film by 1 item, 26 is 1
The 11 item key is used to go back to the previous item, and the 24 is the manual dial used to manually advance and rewind the film.

25 is a copy density dial for adjusting the density of copies, 2
6 is a number of copies dial to set the number of copies (this dial does not work temporarily when copying items), 27 is a 4-digit 7-segment number display, and 28 is a switch to switch from piece search mode to item search mode. The item search switch 29 is used when changing items, and 29 is the item copy switch. When copying items, turn on this switch and press the print switch 8f:
turn on.

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 32 on the film guide 61 is illuminated by light from the lamp 64 that passes through the condenser lens 65, passes through the projection lens 66, is reflected by the first roller 37, and is reflected by the second light beam. mirror 3
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 shown in FIG. Move to the position indicated by the imaginary line. After the movement, the mirror clutch 41 is turned off. During this time, the rolled photosensitive paper 40 is started, cut into a certain length by a cutter 46, charged by a charging section 44, and reaches an exposure surface 46 by a vacuum belt 45.

Furthermore, when the print switch 8 is pressed, the lamp 34 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 64 is turned on again to perform static exposure.

When the exposure for a certain period of time is completed, the lamp 34 is turned off and the photosensitive paper 40 is moved again toward the developing section 47. The photosensitive paper 40 that has entered the developing section 47 is developed with a developer, dried in a drying section 48, and then conveyed to the copy receiver 5. Also,
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. +1 piece key 14゜11 items key 22. By operating the feed direction of the manual dial 24,
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. Film 1 scraped out from inside the cartridge set 50 by the thread roller 53
enters between the drive roller 55 and the press roller 56.

When the film 1 is caught between the rollers 55 and 56, a capsun switch (hereinafter referred to as "CAP switch") 57 is turned on.

When the CAP switch 57 is turned on, the solenoid 52 is turned off, and the film is fed from the drive roller 55. Then, the film 1 passes through the film gate 58'i and is wound around the reel 59. 60
is the film presser arm.

Then, when the start mark is read by the mark detector described later, it will move from medium to high speed (search key when searching for pieces after the 20th frame) or low speed (+1 piece key, +1 item key, pieces within 19 pieces). (search key when searching). Thereafter, when the mark detector detects a predetermined mark, the advance of the film 1 is stopped and the lamp 64 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 Myc and the piece mark Mc are mirror 61.6
2, magnified (2x) by lenses 63 and 64, and i
The beams are reflected by the beams 65 and 66 and reach the piece mark detector 67 and the piece mark detector 68. 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 and B2, 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 Al and Bt produce a piece mark signal for counting piece marks, and the sensor A
2. Start ° mark signal by B2, AI, and Bl,
Generates an end mark signal and a reset mark signal (when the microfilm is fed in the return direction and a start mark is detected). Sensors Aa and Ba of the subject mark detector 68 produce subject mark signals.

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 (Ml) in FIG. The on/off of the solenoid 52 is controlled and sent.

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

Table 1 Each input signal in FIG. 8 and the above Table 1 is as follows. Note that the film was not fed under the conditions marked * in Table 1.

GO: High speed signal MID: Medium speed signal D OW
N: Low speed signal REW: Return signal MSTP: Signal to stop the motor when using the manual dial CAPSW: The on/off signal of the CAP switch 57 causes the film to be bitten between the drive blow 255 and the press roller 56 in Fig. 5. It turns on when you are there.

MDS: A signal that changes the rotational speed of the motor 54 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.
i, C is a solenoid for bringing 6 into contact with film 1.
When the AP switch 57 is off, the solenoid 52 is turned on, and when the CAP switch 57 is on, the solenoid 52 is turned off.

Figure 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 roll photosensitive paper 40 is started as explained in FIG. do.

At the same time, the mirror clutch 41 is turned on, and when the second mirror 68 falls down, the mirror clutch 41 is turned off.

The photosensitive paper 40 is cut into a predetermined length by a cutter 46 and stopped at an exposure surface 46 on a vacuum belt 45. At this time, a paper stop signal PST (FIG. 9) is output, and at the same time the lamp 34 is turned on for exposure.

When the exposure is finished, the lamp 64 is turned off, the photosensitive paper 40 is fed again, the mirror clutch 41 is turned on, and the second mirror 3 is turned off.
8 and ejects the copy to the copy receiver 5.

Note that the print control circuit 80 does not include a signal from the copy number dial 26.

Now, suppose that the copy switch 29 in FIG.
) is output. Further, the mirror clutch 41 is also turned on, and the second mirror 68 falls.

When the photosensitive paper 40 stops at the exposure surface 46, a paper stop signal PST is output, and the lamp 34 is turned on to perform exposure. When the exposure is completed, the lamp 64
is turned off, and the photosensitive paper 40 is developed and discharged to the copy receiver 5.

In this case, in the copy mode, after the print signal P is output and the second mirror 68 falls down, the first
Turn off the mirror clutch from the search control circuit in Figure 2.
When the signal is received, the mirror clutch 41t is turned off separately from the print control circuit 80.

Then, a signal indicating that the exposure has ended due to the stop signal is input, and the 2 lamp 64 is turned on, and the frame of the microfilm 11 is advanced by one frame in response to a signal from the retrieval control circuit shown in FIG. 10, which will be described later.

After that, the reprint signal is sent to the print control circuit 8.
0, the photosensitive paper 40 starts again to perform exposure, and when the photosensitive paper 40 comes out of the exposure surface, the frame is advanced by one frame, and if the sensitivity mark Me is present at this time, the mirror clutch OFF signal is turned off. Then, the mirror clutch 41 is turned on and the second mirror 68 is returned to its original position, completing the copying process.

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 uses a one-chip microcomputer that includes a central processing unit (CPU), a ROM as a program memory, a RAM as a data memory, and the like.

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 90Ifi,
When the 9th frame switch 92 is off, the speed is switched to low speed 19 frames before, and when it is on, the speed is switched to low speed 9 frames before.

However, even if this 9th frame switch 92 is off, when the inspection purple switch 28 is on, the O
Signals from both switches are inputted via an R gate 93.

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

Further, the output signals of the sensor A''sB i +A2sB2 of the piece mark detector 67 and the sensors A3 and B3 of the piece mark detector 68 shown in FIGS. 6 and 7 are subjected to mark preprocessing, respectively. A start mark signal, an end mark signal, a reset mark signal (a start mark detection signal when the microfilm is fed in the return direction), and a frame mark signal are input to a circuit 95 to discriminate each mark.

and a search control circuit 90 by outputting an item mark signal.
Enter.

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, MSTP (motor stop during manual) signals are outputted as film drive related outputs to the film drive circuit 70 shown in FIG.

Also, a mirror clutch OFF 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 sounds to warn the operator.

Also, in piece search mode, piece number data is output, and in item search mode, item number data (set value from a counter in RAM or set value from a numeric keypad) is output, and is decoded by a decoder 98 into 7 segments). It is displayed on the digit number display 27. In this case, each digit of the numeric display 27 is sequentially switched to the dyna i by the switching signal SC.
will be displayed.

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. 3 is turned on.

First, it is checked whether the item search switch 28 is on, and if it is No, it is the piece search mode, so the counter is operated as a piece counter.

If YES, it is a case search mode, so the counter is operated as a case counter.

Next, check whether the numeric keypad 20 is on, and press Y.
If it is S, the program jumps to the arranging routine and sequentially sets the values in the registers.

If the numeric keypad 20 is not operated, then the 11th key 14. -1 piece key 15. +1 item key 22° -1 item key 2
3. Check the search keys 16 one after another, and if any is operated and turned on, press + to carry out that process.
1 frame routine, -1 frame routine, +1 routine, -i
Proceeds to either the subject routine or the search routine, but +1
When proceeding to the piece routine or the +1 item routine, the EN and D/P checks according to the present invention are passed, and if END/F is set, the process returns to the start and proceeds to the +1 piece routine or the +1 item routine. do not have.

Nao, manual routine, rewind routine.

The copy routine and the like are omitted from illustration.

END/F is one in which one of the flip-flop circuits (/P) in the RAM of the search control circuit 90 is allocated as a storage means for storing an end mark when it is detected.

Then, this END/F is set when the end run l process shown in FIG. 12 is performed in the +1 groan routine and +1 case routine of FIG. 11 and the end mark is detected, and XVl // become.

Also, in the -1 piece routine and -1 case routine, the 16th
End run 2 processing as shown in the figure is performed, and when a piece mark is detected, it is reset to "0".

That is, when the end mark is detected during film advance direction, END/ is set, and when the film is returned, the first frame mark (frame mark attached to the last frame in the film advance direction) is set. When END/P is detected, END/P is reset, and thereafter, even if a piece mark is detected, it remains in the reset state because it has already been reset.

In this way, after the end mark is detected, the microfilm is returned and before the first frame mark is detected, the stop key is used to stop the film return, and the +1 frame key or -1 frame key is pressed. Even if you operate it, the function will be invalidated and the operation of forwarding one frame or forwarding one item will not be performed.

In other words, when the +1 piece key or +1 item key is operated,
The means for checking END/=1 and returning to the start if YES corresponds to the key manual invalidation means in this invention.

Next, an embodiment will be described with reference to FIG. 14 in which the storage means and key manual invalidation means of the present invention are realized outside the search control circuit using a microcomputer.

100 is a set-to-set type flip-flop circuit (hereinafter abbreviated as "5-TRb") as a storage means, which corresponds to END/ in the above embodiment, is set by the end mark signal, and is set by the piece mark signal. reset by .

Therefore, this SR/ is set when the end mark ME is detected while feeding the microfilm, and if the Q output is 0, then -11 is stored. Then, -1 Piece key, -1 item key.

Alternatively, the υ microfilm is returned by operating the search key after entering the number in the return direction, and when the first frame mark is detected, it is reset and the Q output becomes ゝゝ1〃.
Thereafter, even if a piece mark is detected, it remains in the reset state.

Reference numeral 101 is a key manual invalidation means, which outputs each output signal by operating the +1 piece key 14 and the +1 item key 22 and S-R%1.
AND circuit 102 that performs an AND with the Q output of 00
, 103.

Therefore, the end mark is detected and S-R/100
is set and memorized, Q゛−′ζ′
,・ Since the output is “0”, press +1 frame key 14 or +
Even if the single item key 22 is operated, the AND circuits 102, 1
The output of 03 remains "0" and its key input is not input to the search control circuit.

After the microfilm is returned and the first frame mark is detected and the 5-RP/F is reset, the Q output will be “1”.
", so when the +1 frame key 14 or the +1 item key 22 is operated, the key input is directly output to the search control circuit, and the operation of forwarding one frame or forwarding one item is performed.

As described above with respect to the embodiments, if the information retrieval device according to the present invention is used, after the microfilm is fed near the end and the end mark is detected, the microfilm is returned and the first information frame (in the feeding direction Then, even if you press the stop key to stop the film before the last information frame (the last information frame) arrives, and then try to advance one frame or one item, the manual effort of that key becomes invalid, thereby preventing unnecessary film advance operations.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an example of a microfilm used in an information retrieval device to which the present invention is applied. FIG. 2 is a perspective view showing the external appearance of the reader printer main body which is an embodiment of the present invention, FIG. 3 is a plan view of the operation panel thereof, and FIG.
Similarly, FIG. 5 is a block diagram showing the mechanism for projecting the film and making copies, FIG. 5 is a block diagram of the film drive unit, FIG. 6 is a block diagram of the marr detection section, and FIG. is an explanatory diagram showing the frame mark detector and subject mark detector in Fig. 6 in correspondence with the frame mark and subject mark on the microfilm, and Fig. 8 shows the relationship between the film drive circuit and its input/output signals. FIG. 9 is an explanatory diagram showing the relationship between the print control circuit and its input/output signals; FIG. 10 is an explanatory diagram showing the relationship between the search control circuit and its input/output signals; FIGS. 11 to 16 FIG. 14 is a block circuit diagram showing another embodiment of the present invention. FIG. 14 is a block circuit diagram showing another embodiment of the present invention. 1...Microfilm K...Information piece MK...Piece marker/Me...
Item mark Ms...Star) mark ME------
・Entomer 2...Screen 6...Film drive unit 4...
・Operation panel 5...Copy reception care...
...Power switch 8...Print switch 14...+1 piece key 15...-
1 piece key 16...Search key 17...
... Stop key 18 ... Clear key 19
...Preset key 20...Numeric keypad 21...Rewind key 22...
・+1 item key 23...--1 item key 24...
...Manual dial 27...Numeric display 28...Search switch 29...Copy switch 57...CAP switch 67... ... Frame mark detector (also serves as end mark detector) 68 ... Frame mark detector 70 ... Film drive circuit 80 ...
・Flint control circuit 90...Search control circuit (microcomputer) 100...S-RF/P (storage means) 101
...Key manual nullification means 27- ~ rr+ Mali Figure 14 101 Procedural amendment (spontaneous) October 28, 1980 Haruki Shimada, Commissioner of the Patent Office 1, Patent application for indication of the case 1982- 142491 No. 2, Invention name information search device 3, Relationship with the amended person case Patent applicant: 1-3-6 Nakamagome, Ota-ku, Tokyo (6741 Rico Co., Ltd. - 4, Agent: Toshima-ku, Tokyo) Higashi Ikebukuro 1-20-5 5. Drawings to be amended 6. "Figure 16" of the content drawings of the amendment All replaced with the corrected drawings attached to this book. 7. Attached document corrected drawings (Figure 13) 1st copy Figure 13-527-

Claims (1)

[Scope of Claims] 1. A frame mark attached corresponding to each information frame provided on a microfilm, and an issue mark attached corresponding to the first frame of a group of information frames recording one item of information. An information retrieval device capable of performing frame and item searches by detecting the end mark of the microfilm is memorized when the end mark provided near the end of the microfilm is detected, and when the microfilm is returned to the first position. a storage means for canceling the memory when a frame-i'-return is detected; and a key or a group of information frames for sending the information frame by one frame while the storage means stores the detection of the end mark. An information retrieval device characterized in that the information retrieval device is provided with key manual disabling means for disabling the function when a key for sending one item is operated.