JPS5843068A - Information retrieving device - Google Patents

Abstract

PURPOSE:To improve the operability of an information retrieving device, by giving a warning with the operation of a search key when the counted vaue of a mark counting means goes to zero. CONSTITUTION:For a misoperation discriminating means 110, an NOR circuit 113 feeds the output of an NOR circuit 111, an OR circuit 112, a film state detecting means 100 and a key operation validating means 120 respectively. Then an AND is secured and the output serving as a misoperation signal is reduced to ''1'' when all inputs go to ''1''. A counter 114 counts the frame mark signals or item mark signals which are fed via a switching circuit 115. The circuit 115 performs the switching so as to deliver a frame mark signal and an item mark signal to the counter 114 when an item retrieving switch 28 is turned off and on respectively. At the same time, the outputs of the bits of the counter 114 are all fed to the circuit 111.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an information retrieval device such as a league printer that can perform a frame search for each information frame on microfilm and a double search for a group of information objects for each winter crop. Regarding.

Such an information retrieval device includes, for example,
Negative or positive microfilms such as those shown are used.

This microfilm 1 is connected to a starting end leader tape 1a that is latched to a take-up reel (not shown) and a terminal end leader tape 1b that is latched to a reel in the metric ridge.
Two black start marks are attached to each connection part (ZMs, which serves as a reset mark when returning, and an end mark 1?).

Then, the film 1 between both marks (7) i
A piece mark MK is attached corresponding to each information piece, and a group of information objects (generally consisting of a plurality of frames) each records one piece of information. However, there are cases where one frame contains information for one item) A case mark Mc is attached corresponding to the first frame of KG.

i2 software, the information retrieval device uses this microfi
Detect the piece mark MK and matter mark Mc of room 1,
Well, it is now possible to perform a piece search (a search for each piece) and an item search (a search for each group of information items).

1 That is, a mark detector that detects the piece mark MK and the piece mark Mc, and the detection of this mark detector]
To select a mark counting means (hereinafter referred to as a "counter") that counts piece marks MK or matter marks Mc according to a signal, and a piece search mode by counting piece marks of this mark counting means and a matter search mode by counting matter marks. a mode selection means, a numbering means such as a numeric keypad for entering the piece number or case number to be searched, a number and value set by the numbering means, and a count value by the counter. A search command key (hereinafter referred to as "
1 for sending one information piece K.
A key for forwarding a frame (hereinafter referred to as the "+1 frame key"), a key for reversing the information frame K by one frame (hereinafter referred to as the "-1 frame key"), and one piece of information object group KG. It is equipped with a key for sending one item (hereinafter referred to as ``+1 item key'') for sending, and a key for returning one item (hereinafter referred to as ``-1 item key'') for returning one item of information piece group G. ing.

In the piece search mode, the counter counts the piece marks and displays the piece number, and in the case search mode, the counter counts the piece marks and displays the piece number.

In either mode, you can forward and return one frame, and forward and return one item. In addition, you can automatically search for the piece number in the piece search mode and the item number in the item search mode by entering them in advance with the numeric keypad. is now possible.
By the way, when the microfilm is fed into the retrieval device and information frames after the first frame are being retrieved, the count value of the counter, which is the mark counting means, is usually ``1'' or more.

However, when the power is turned off by -H and then turned on again, the count value of the counter is reset to "0".

Also, even if you enter "0" using the numeric keypad to preset, the count value of the counter will be "0".

In such a case, use the aforementioned search key, +1 piece key, -1
If you operate the piece key, +1 item key, or -1 item key, the piece number or item number of the information piece that is actually being searched will differ from the count value displayed on the counter, making it impossible to perform a normal search. . - However, in the conventional information retrieval device, even in the above-mentioned case, the input of each operation key is left valid, or the film drive is simply prohibited and does not work.

Therefore, there is a drawback that the operator does not pay attention to erroneous operations and wastes time.

This invention was made in order to solve such problems, and the purpose of this invention is to issue a warning in the above-mentioned cases to inform the operator that an incorrect operation has been made, and to improve operability. do.

However, when using microfilm with an information frame without an item mark before the item with an item mark at the beginning, as shown in Figure 1, when searching for an item, the item with an item mark at the beginning is When 4 is being projected, the count value of the counter is "1" because the item number is "l", but if you use the -1 frame key to project 3 on the third information frame, The counter is
0”.

From this state, press the -1 piece key to move to the second
It is inconvenient if a warning is issued when you try to see 2 on the 4th information piece and use the tenth frame key again to see 4 on the 4th information piece.

Therefore, in the case search mode, use the +1 piece key or -l
After the piece key is operated and the counter reaches rOJ,
- Even if an operation key other than the 1 item key is operated, the function of that key operation is enabled without issuing a warning of erroneous operation.
−′.

Therefore, even though the information retrieval device according to the present invention has a filter function that detects when the microfilm is fed into the device and the first frame and subsequent frames are being searched, the count value of the counter is When zero, search key, +1
Piece key, -1 piece key.

An erroneous operation detection means that outputs an erroneous operation signal when either the +1 item key or the -1 item key is operated, an erroneous operation warning means that issues a warning when the erroneous operation determination means outputs an erroneous operation signal, and a mode selection means. When the item search mode is selected, the +1 piece key or the -1 piece key is operated, and as a result, the count value of the counter reaches zero, and then the search key and the +1 piece key are pressed.

The above-mentioned object is achieved by providing key operation enabling means for preventing an erroneous operation signal from being outputted to the erroneous operation determining means, regardless of whether either the -1 frame key or the +1 item key is operated.

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

FIG. 2 shows the external appearance of an information retrieval device/a certain reader printer main body according to the present invention, where 2 is a screen, 3 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 that turns 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, and 10.11 is a copy light. 12 is a toner lamp that lights up when toner runs out; 16 is a solvent lamp that lights up when there is no solvent.

14 is a 10 frame key for forwarding one frame of microfilm. 15 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. 17 18 is the numeric display 2. The stop key is used to stop moving the image and cancel the copying operation.
It is a clear key that clears the number displayed in 7.

Reference numeral 19 indicates a preset key for setting a number entered using the numeric keypad 20 into a piece or counter of the internal RAM of the microcomputer, which will be described later; 20 indicates a numeric keypad as a number entry means used when presetting 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 for returning the item, and the 24 is the manual dial for manually sending or returning the film.

25 is a copy density gouillard for adjusting the copy density; 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. Reference numeral 29 is a copy switch, which is used when copying items. When copying items, this switch is turned on and the print switch 8 is turned on.
- Next, the mechanism for film projection and copy making by this league printer will be explained with reference to FIG.

The information frame of the microfilm 1 held on the film guide 61 by the pressure plate 62 is irradiated with light from the first lamp 34 that passes through the condenser lens 35, passes through the projection lens 66, is reflected on the first mirror to 37, and is reflected on the second mirror. 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. The mirror 68 is moved 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, cut into a certain length by a cutter 46, charged by a charging section 44, and delivered onto an exposure surface 46 by a vacuum belt 45.

Furthermore, when the print switch 8 is pressed, the lamp 64 that was irradiating the microfilm 1 at this point is turned off. Then, the photosensitive paper 40 is used as an exposure surface lamp 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 returns to its original position.

Note that 49 is a reflecting plate that reflects the light emitted from the lamp 340 toward the condenser lens 65.

Next, about the film drive unit, □ This will be explained using figures.

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° +1 item key 22. By operating the feed direction of the manual dial 24, the lensoid 52 is turned on, the thread roller 53 is moved toward the film surface, and at the same time, the drive motor 54 is rotated.

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 56
enters between the drive roller 55 and the press roller 56. When the film 1 is inserted between both rollers 55 and 56, the cab stance inch (hereinafter referred to as "CAP switch")
) 57 turns on.

When the CAP switch 57 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 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 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 34.
The piece mark Mx and the piece mark Mc are mirror 61.62
It is reflected by a lens 63, 64, magnified (doubled) by a mirror 65, 66, and reaches a frame detector 67 and an object mark detector 68. Note that the information on that piece is projected onto the screen 2 in FIG. 4 through a projection lens 66.

As shown in FIG. 7, the piece mark detector 67 is connected to the sensor A1.
．． A2. Equipped with Bl and B2, mark detector 68
is sensor A3. It is equipped with B3. Each sensor is specifically a photodiode.

Sensors Al and Bt of the piece mark detector 67 generate a signal for counting piece marks, and sensors A2 . B2 and AI, B
A start mark signal, a start mark signal, and a reset mark signal (when the microfilm is fed in the return direction and the start mark is detected) are generated by the 1 and 1 signals. 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 driven in the driving and feeding direction of the drive motor 54 (Ml) in FIG. is controlled,
The on/off of 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.

This is Notooshi. Note that the LD film was not fed under the conditions marked * 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 force is inserted between the drive roller 55 and 7' L/SO-256 in FIG.

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 11" in the forward direction and "0" in the return direction.

t+, 7L//Id 52 is the thread shown in FIG. 5)":
+056 is a solenoid for contacting the film 1. When the CAP switch 57 is off, the solenoid 52 is on, and when the CAP switch 57 is on, the solenoid 5 is turned on.
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 as explained in FIG.
Start the roll i optical paper 40.

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

The photosensitive paper 40 is cut into a predetermined length by a cutter 46 and stopped at an exposure surface 46 on a cutter belt 45.
At this time, a stop signal PST (FIG. 9) is output, and at the same time the lamp 64 is turned on for exposure.

When the exposure is completed, the lamp 64 is turned off, the photosensitive paper 40 is fed again, the mirror clutch 41 is turned on, and the second mirror 6 is turned off.
8, and eject the copy from the copy tray 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 4 is turned on to perform exposure. When the exposure is finished, the lamp 31
! is turned off, and the photosensitive paper 40 is developed and discharged to the copy receiver 5.

In addition, in this copy mode, after the print signal P is output and the second mirror 68 falls down, the first mirror 68, which will be described later,
Turn off the mirror clutch from the search control circuit in Figure 0.
When the signal is received, the mirror clutch 41 is turned off separately from the print control circuit 80.

Then, after the exposure is completed according to the stop signal and the photosensitive paper comes out from the exposure surface 46, a signal to light the lamp 64 is input and the lamp 64 is turned on, and the search control circuit from the search control circuit shown in FIG. The signal sends one frame of microfilm 9 forward.

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 off the exposure surface, the frame is advanced by one frame, and if the exposure mark Mc 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 38 is returned to its original position, thus completing the copying process.

FIG. 10 shows the search engine in this embodiment.

2 is a diagram showing the relationship between a loop circuit and its input/output signals; FIG.

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 the 31st p% are respectively input. Note that this switch is turned on together with the manual switch 91.

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. When the 9th frame switch 92 is off, the search control circuit 90 switches to low speed 1p frame before, and when it is on, it switches to low speed 9 frames before.

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 input via an R gate 93.

In addition, the film drive circuit 7o in FIG.
A switch on/off signal is input.

Furthermore, from the print control circuit 80 shown in FIG. 9, 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.

Also, the sensors Al, Bl, A2 . B2 and mark detector 68
sensor A3. The output signals of B3 are respectively input to a mark preprocessing circuit 95 to discriminate each mark, and a start mark signal, an end mark signal, and a reset signal (when a start mark signal, an end mark signal, and a reset signal are sent in the return direction). start mark detection signal), piece mark signal.

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

The positive switch 96 is a switch that is turned off when the loaded MY and 0 settings are positive and OFF when they are 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.

In addition, if the operator makes an erroneous operation, the erroneous operation signal SMI'SS is outputted and the buzzer 97 is sounded to issue a warning.

Also, in piece search mode, piece number data is output, and in case search mode, piece number data (counted value by a counter in RAM or set value by ten) is output, and 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 displayed in phantom by the switching signal Sc.

Next, only the portions related to the present invention during the operation of the search control circuit shown in FIG. 10 will be described.

The microcomputer constituting the search control circuit 90 is equipped with a counter for counting piece marks or item marks, and a register for storing numerical values entered by operating the numeric keypad 20 and preset keys 19. When a search command signal is input by turning on the search key 16, a signal is output to the film drive circuit 70 to move the microfilm until the count value of the cowlator matches the set value stored in the register.

Further, as described above, the counted value of this counter is displayed on the numeric display 27, and the display matches the frame number or case number of the information frame displayed on the screen.

Furthermore, within this search control circuit, there are operation keys (
+1 piece key, +1 item key, search key.

A flip-flop circuit (hereinafter referred to as [
Star, -) '/-J) is provided.

Then, this start 4 is used as a film state detection means for detecting whether or not the microfilm is fed into the apparatus and the first frame and subsequent frames are being searched.

Figure 11 shows the count values of each mark Ms, MK, MC, color/re on the microfilm during normal loading, the on/off of the CAP switch, the start % set 0 reset, the start mark signal, and the frame mark. Nine signal marks indicate the relationship between the signals. 2 As is clear from this figure, the count value of the counter is “0”.
At this time, the CAP switch is OFF, but even if it is ON, if the start % is "1", it is normal because the microfilm 1 is being fed before it starts.
CAP switch is ON and start z and o
If this is the case, the microfilm 1 has been completely fed into the device and the first frame is being searched for 1 and subsequent frames, which indicates an erroneous operation. Therefore, this 1
At this time, the buzzer 97 shown in FIG. 10 is sounded to notify the operator.

However, as shown in Figure 1, when using a book file sentence that has an information piece without a subject mark before the first subject mark, the counter becomes "O" in the subject search mode as described above. Even if the key operation other than the ~1 item key is not an erroneous operation, it is necessary to enable the key operation without sounding the buzzer 97. ' In order to determine whether the precondition is 0, an additional 12% is provided inside the search control circuit 90.

In other words, when the +1 frame key or -1 frame key is operated in the item search mode, the l/F is set when the count value of the counter reaches "0", and is reset if it does not reach "0" (hereinafter referred to as L/F). "±041)" is provided.

Next, the operation executed by this search control circuit is shown in FIGS. 12 to 16. FIG. 12 shows an outline of the main routine, which starts from the start when the power switch 7 in FIG. 6 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 the 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 sets that value in all sequential registers.

If the numeric keypad 20 is not operated, then the +1 piece key 14. -1 piece key 15. +1 item key 22° -1 item key 2
6. Check the search keys 16 one after another, and if any is operated and turned on, press + to carry out that process.
1 piece, routine, -1 piece routine, +1 routine, -
Either the one case routine or the search routine is proceeded to, but in either case, the miss check routine according to the present invention is passed through before proceeding.

Note 1. The illustration of the manual routine, rewind routine, copy routine, etc. is omitted since the error check routine according to the present invention is not passed through.

FIG. 16 shows the i-s check routine.

First, check whether the -1 item key is on, and if it is on, press the next □F7. Skip the check and go to check whether the counter is "0". ±OF if off
/Check whether F=1.

If 10/F=1 (set state), the process returns to the main routine.° This corresponds to the key operation enabling means in the present invention.

If ±0/i,,=1 is not true (if it has been reset), then check whether the count value of the counter is rOJ, and if it is not "0", return, and if it is "0". If so, then check whether the CAP switch 57 (Fig. 5) is on or not. □If the CAP switch is on, it is returned, and if it is on, then it is checked whether the above-mentioned outside start is set. Check. Set.

If it is not set, the process returns; if it is set, it is determined that the operation has been erroneous, and the process proceeds to a process that sounds a buzzer for a certain period of time to issue a warning. This corresponds to the erroneous operation determination means in this invention.

and turn on the buzzer 97. Thereafter, the buzzer continues to sound until the timer times out, and when the time expires, the buzzer 97 is turned off and the process returns to the start (2) of the main routine in FIG.

Note that the return in the case of no erroneous operation is to proceed to one of the subroutines for performing processing corresponding to each operation key in the main routine.

FIG. 14 shows a zero check routine for setting and resetting ±OF/P, which is performed in the +1 frame routine and the 11 frame routine in FIG. 12.

First, it is checked whether the item search switch Y is on. If it is not on, it is the piece search mode, so the process returns. If it is on, then it is checked whether the count value of the counter is rOJ.

If it is zero, set ±0/F, it must be zero.

If so, reset and return.

Next, the film condition detection means in this invention.

The erroneous operation determination means and the key operation activation means are
An embodiment realized by a wired logic circuit without using a computer will be described with reference to FIG.

The film condition detection means 100 includes a set/reset type flip-flop circuit (hereinafter abbreviated as s-R'zNJ) 101 and an AND circuit 102.

5-RF/F 101 is set in the same way as the start % by the film feed start signal from the operation key, and is reset by the frame mark signal when the frame mark of the first frame is detected. Therefore, the Q output becomes 0'' at the start of the film, and becomes 1 after the first frame is retrieved.

“1” when the CAP switch 57 is on, 10 when it is on
", the output of the AND circuit 102, that is, the output of the film condition detection means 100, is
11 when the switch 57 is on and S-R/p is reset and the first frame and subsequent frames are being searched.

The erroneous operation determination means 110 includes a multi-input NOR circuit 111, an OR circuit 112 powered by five people, and a total circuit 113 powered by four people.
The AND circuit 113 inputs the respective outputs of the NOR circuit 111, the OR circuit 112, the film condition detection means 100, and the key operation enabling means 120 (to be described later), and performs AND9, and all inputs are X. '1'', the output as an erroneous operation signal is set to %%1.

Reference numeral 114 is a counter for counting the piece mark signal or the piece mark signal inputted via the switching circuit 115, and the count value is decoded by the decoder 98 and displayed on the numeric display 27.

The switching circuit 115 is switched to output a piece mark signal to the counter 114 when the item search switch 28 is off, and to output an item mark signal when it is on.

Also, all outputs of each pit of this counter 114 are set to NO.
It is input to the R circuit 111. Therefore, counter 1
The output of the NOR circuit is 1 only when the count value of 14 is "0".
It becomes 1".

On the other hand, search key 16. +1 piece key 14. -1 piece key 1
5. +1 item key 22. When any one of the -1 key keys 26 is operated, its output becomes "11" and the output of the OR circuit 112 also becomes "1".

Therefore, if the output of the key operation enabling means 120 (described later) is "1", the output of the AND circuit 113, that is, the output of the erroneous operation determining means 110 is 1. When the count value of the counter 114 is "0", the output of the film condition detection means is "1" (
When any of the operation keys 16, 14, 15, 22.degree.

The transistor 117 is turned on and the buzzer 97 sounds.

Note that the means for warning of erroneous operation is not limited to a buzzer, but may also include a display warning using a lamp or a letter or figure, or an OR circuit 121 that takes the OR of the piece keys 15 by voice using a voice synthesizer, etc., and its output. AND circuit 122 that takes an AND with the search switch 28 and its output is "1"
is triggered and outputs for a fixed period of time
Two AND circuits 124 and 1 which take an AND with the output of the output of the inverter 126 that inverts it and the output of the inverter 126 that inverts it.
25 and 5-R1/F127 (±0% in the previous embodiment) which is set when the output of the AND circuit 124 is "1" and reset when the output of the AND circuit 125 is "1".
), and the Q output of this S-R/F127,
It consists of an OR circuit 128 that takes an OR with the -1 key 26.

Then, the output of this OR circuit 128 is inputted to one long sword terminal of the AND circuit 116 of the erroneous operation determining means 110.

Therefore, when the +1 frame key 14 or the -1 frame key 15 is turned on, if the search switch 28 is turned on, the output of the AND circuit 122 becomes 1", and one shot.
The multiplexer 126 is triggered and outputs one constant time “l’/
, vc.

The output becomes “1” and the output of the AND circuit 124 becomes %%.
1 //, so S-R/F127 is set,
Its Q output will be 10''.

Therefore, even if keys other than the -1 key are turned on in this state, the output of the OR circuit 128 is 10'', so the output of the AND circuit 1169 of the operation error determination means 110 is (% 0
// remains and the erroneous operation signal SMI ss is not output.

When the 11 key is on, even if S-R/F is set, the output of the OR circuit 128 becomes 117', so this key operation validation function does not work.

Also, if the count value of the counter 114 does not reach "0" while the output of the one-shot multi 126 is 51", NO
The output of the R circuit 111 is ゝゝ0〃.
Since the output of the AND circuit 125 is "1", the output of the AND circuit 125 is "l".
”, and S-R/i, 127 is reset.

While the 5-RF/127 is being reset, the output of the OR circuit 128 is "1", so the key operation validation function does not work.

As described above with respect to the embodiments, according to the present invention, when the count value of the mark counting means is zero when the microfilm is fed into the information retrieval device and the first frame and subsequent frames are being searched, the search is performed. Key.

If any of the +1 piece key, -1 piece key, +1 item key, or -1 item key is operated, a warning will be issued, so the operator will immediately notice this and check the number of the piece on which the counter value is projected. Since the search can be started immediately by pressing the desired operation key after modifying the search to match the search result, operability is improved.

In addition, when using microfilm that has a frame without a subject mark before the first subject mark, it is possible to go back one frame by operating the 11 frame key or the +1 frame key in the subject search mode. The count value of the counting means is “0”
When this happens, no warning will be issued even if you operate any operation key other than the -1 item key, and you can view the information frame in front of the item with the item mark at the beginning.

−

[Brief explanation of the drawing]

FIGS. 1(A) and 1(B) show an example of a microfilm used in an information retrieval device to which the present invention is applied, in which FIG. 1(A) is a negative film and FIG. 1(B) is an explanatory diagram of a positive film. 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. 6 is a plan view of the operation panel, and FIG.
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 pillar mark detector in Fig. 6 in correspondence with the frame mark and subject mark on the microfilm, and Fig. 8 is an explanatory diagram showing the relationship between the film drive circuit and its input/output No. 16. , Figure 9 is an explanatory diagram showing the relationship between the print control circuit and its output signal, and Figure 10 is an explanatory diagram showing the relationship between the search control circuit and its input/output signals. Timing diagram provided, No. 1211:
, an operation flow diagram of the main routine of the search control circuit, +r FIG. 13 is an operation flow diagram of the miss check routine, FIG. 14 is an operation flow diagram of the zero check routine, and FIG. 15 is an operation flow diagram of the present invention. FIG. 2 is a block circuit diagram showing another embodiment of the invention. 1...Microfilm K...Information piece Mx-'----piece mark Mc...Information mark Ms-...Start mark M]i!・
...End mark 2...Screen 3...Film drive unit 4...
・Operation panel 5...Copy receiver 7...
...Power switch 8...Print switch 14...+1 piece key 15...
-1 piece key 16... Search key (search command key) 17... Stop key 18...
Clear key 19...Preset key 20...Numeric keypad (number setting means) 21...
・Rewind key 22...+1 item key 26・
...-1 item key 24...Manual tire 27...Numeric display 28...Search switch 29...Copy switch 57. CAP switch 67 Frame mark detector 68 Frame mark detector 70 Film drive circuit 80
・Flint control circuit 90...Search control circuit (microcomputer) 97...Buzzer (misoperation warning means)
-100...Film condition detection means 110...
. . . Erroneous operation determination means 114 . . . Counter (mark counting means) 120
...Key operation enabling means M
jFigure 5 16 Figure 9 5?0

Claims (1)

[Claims] 1. A frame mark attached to each information object on a microfilm and an issue mark attached to the first frame of a group of information objects recording one item of information, respectively. A mark detector for detecting, a mark counting means for counting the piece marks or object marks based on the detection signal of the mark detector, and a piece search mode by counting the piece marks and an object search mode by counting the object marks of the mark counting means. a mode selection means for selecting, a numbering means for entering the piece number or item number to be searched, and a numerical value entered by the numbering means and a count value by the counting means. a search command key that issues a search command signal to move the microfilm up to the point where the microfilm is moved, a one-frame advance key that advances the information material one frame, a one-frame return key that returns the information material one frame; In an information retrieval device equipped with a one-item sending key for sending one item of information items and a one-item return key for returning one item of information items, the microfilm is fed into the device. film state detection means for detecting when the first frame and subsequent frames are being searched; and when the count value of the mark counting means is zero even though the detection means outputs a detection signal; The search command key, a key for forwarding one frame, a key for reversing one frame, and a key for transmitting one frame simultaneously. an erroneous operation determination means that outputs an erroneous operation signal when any of the keys for returning one item is operated; an erroneous operation warning means that issues a warning when the erroneous operation determination means outputs an erroneous operation signal; and the mode selection means is in an item search mode. When selecting the
After the count value of the mark counting means becomes zero as a result of the operation of the one-frame forwarding key or the one-frame backward key, the search command key, one-frame forwarding key, one-frame backward key, 1
1. An information retrieval device comprising: key operation enabling means for preventing the erroneous operation determining means from outputting an erroneous operation signal even if any of the message sending keys is operated.