JPH0413746B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image information processing apparatus, and more particularly to an apparatus that uses a roll-shaped microfilm contained in a cassette as a recording medium on which an image is recorded.

[Prior Art] In office automation, which aims to improve the efficiency and productivity of office departments, the establishment of document storage and retrieval systems plays an important role. An effective means for this purpose is the use of microfilm. Conventional microfilms include roll films, aperture cards, microfibers, and microjacket forms. Microfilm is a continuous reduction of document material onto a roll of film.
It is stored in a reel or magazine, and searched and restored using a microreader or reader printer using a search code or the like that was imprinted at the same time as the photo was taken. An aperture card is an appropriately sized card (usually an IBM card) with a square window (aperture) and microfilm attached to it. Using the preset code on the card as a clue, the necessary card is manually or mechanically removed and restored using an aperture card reader. A microfiche is a sheet of film that is directly photographed with a special camera.The serial number attached to the fissure is used as a clue to find what is needed, and a film reader is used to restore and decipher the material. do. A microjacket is made by cutting a separately photographed roll film into film strips each containing 6 to 12 frames, and inserting the film strips into a transparent sheet bag (jacket).

[Problems to be Solved by the Invention] However, in any of the above usage modes, there is a drawback that the copying device that copies the original document and the search device (microreader) that searches for the photographed frames are separate entities. At the time of searching, it is necessary to perform the search while manually viewing enlarged image information or searching for the photographing code, which results in a lack of quickness and wastes a lot of effort and time. Furthermore, since the information that identifies the photographed frame (frame number, code, etc.) is usually imprinted on the microfilm itself, it is not possible to add or modify the information later.

In order to add or correct information later, there is a method that inputs and saves information identifying the photographed frame into an external memory, but according to this method, the information is recorded on multiple microfilms (cartridges). The disadvantage is that the larger the number of microfilm cartridges, the larger the memory required.

An object of the present invention is to provide an image information processing device that can quickly search for desired images and photographable frames taken using an easy-to-handle image recording/retrieval medium in the form of a cassette. be.

[Means for Solving the Problems] For this reason, the present invention is configured such that an electrophotographic image is formed frame by frame with a leader film portion having light transmittance, and a position corresponding to each frame position is formed. A photographic film section on which an optically detectable mark is attached in advance, and a photographic film section arranged between this photographic film section and the above-mentioned leader film section, which digitally stores image information data regarding the image formed on the photographic film section. A magnetic tape section that records data and whose recorded contents can be changed and erased according to commands from an input means is connected in series in the order of the leader film section, magnetic tape section, and photographic film section. The recording/retrieval medium is provided with an image information recording/retrieval medium, and the driving means drives the recording/retrieval medium in the longitudinal direction, and the image is recorded on the frame of the photographic film section designated by the input means, and the image information data is transferred to the magnetic field. The image information data recorded on the magnetic tape section is searched based on the information input mode recorded on the tape section and the search information input from the input means, and the photographed frame of the photographic film section corresponding to this image information data is searched. An image information processing device having a search mode for searching for images, which records and records the images.
A cassette containing a retrieval medium, a mechanism for loading the cassette into the main body of the apparatus, a head detecting means for detecting the head of the magnetic tape section at the start of recording/search, and an image recording/recording means driven by the driving means.
mark counting means for counting the marks on the photographic film portion of the search medium; and data generation for generating photographed digital data indicating that the frame has been photographed and writing it into the memory means when an image is photographed. means for temporarily storing the image information data; and a memory means for temporarily storing the image information data; and a means for detecting the digital data recorded on the magnetic tape section when a leading edge detection signal of the magnetic tape section is received from the leading edge detecting means at the start of recording/retrieval. In the information input mode, the image information data regarding the image taken in the frame of the photographic film section is written into the memory means, while in the search mode, the digital data written in the memory means is read and written into the memory means. control for searching for a frame in the photographic film section based on the photographed digital data and frame position information from the mark counting means, and recording the contents of the memory means on the magnetic tape section at the end of the recording/search; The computer is equipped with a calculation means.

[Operation] The mark counting means counts the marks attached to the photographic film portion of the image recording/retrieval medium housed in the cassette. This mark is placed at a position corresponding to each frame position, so
Each frame is identified from the count value of this mark. The control/calculation means records digital data indicating that the frame has been photographed together with the count value of the mark count means corresponding to the frame in the memory means when the image is photographed. , the data is written from this memory means to the magnetic tape section. In addition, the above control/calculation means:
The count value and digital data written in the magnetic tape section of this recording/retrieval medium are read out from the magnetic tape section into the memory means. and,
The driving means moves the frame specified by the read count value to the shooting position in the case of shooting.
In the case of projection, each frame is moved to a projection position and a photograph is taken at that frame, or a photographed image is projected onto a screen or the like at that frame.

[Effects of the Invention] According to the present invention, since the image recording/retrieval medium is in the form of a cassette, it is easy to handle and store. Since each frame is specified using the count value as an address, the position of the frame can be detected based on the count value, and the running of the recording/search medium can be controlled to quickly search for the specified frame. Furthermore, according to the present invention, when an image is photographed, digital data indicating that the relevant frame has been photographed is generated, so this digital data can be used to reliably identify photographed frames and unphotographed frames. You can know.

This effect of the present invention is more pronounced when electrophotography is used than in a microfilm system using conventional silver salt photographic materials. In other words, in the case of silver halide photographic materials, if unexposed areas are exposed to light and developed, or if they are developed without being exposed, information cannot be recorded in those areas. After recording information (image exposure, development, and fixing) using a portion of the roll film, the remaining blank area is left unexposed and undeveloped for use in projection, etc., and then used as needed. It is necessary to record additional information in the margins, but it is extremely difficult to completely block the projection light from entering the margins during use, and it is also difficult to record the film without leaving the margins. It is extremely difficult to completely shield the blank area from light when replacing it or storing it. In particular, when searching for the part you want to project by placing a roll film with a blank area on a reader,
To perform a search without exposing the blank area to light, you must rely on a completely unscientific search method, which is extremely disadvantageous both in terms of equipment and in practical terms. The fact that it cannot be searched means that it has little value as a practical device. Furthermore, if you are reading with a reader and advance frame by frame without knowing that there is a blank area after the last frame of the photographed section, that area will be exposed.To prevent this, Even if various methods are possible, all of these methods require troublesome additional work at the time of photographing, and are almost impossible in practice.

In contrast, with electrophotography, the light-sensitive material can be reused by cleaning it regardless of whether it is exposed or unexposed, and even after development or before fixing, so there is no need for the above-mentioned light shielding. , it is possible to use a photosensitive material with only a portion recorded and a blank area left. Therefore, image information is partially recorded on a roll film electrophotographic material, the remaining blank area is left untouched for use, and additional information can be recorded in the blank area when the need arises. It is possible to record. In other words, there is no need to continuously record one piece of information during recording, and even if requests for recording different types of information occur randomly, it is possible to organize and record each type of information. It is something. This recorded information can be freely accessed using the photographic/recorded information recorded in the recording section.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic block diagram of one embodiment. 1
is a tape body with a magnetic recording section 1m and a film section 1f.
It is equipped with Reference numeral 2 denotes a driving means for driving the tape body 1 forward and backward freely in the longitudinal direction, and 3 a magnetic recording/reproducing means capable of reading information from the magnetic recording section 1m of the tape body 1 and writing information to the magnetic recording section 1m. , 4 is an image forming means for imprinting the document document 5 onto the film portion 1f of the tape body 1, and performing processing such as development and fixing to form image information. Reference numeral 6 denotes a control/calculation means mainly composed of a microcomputer, which mainly includes a CPU 7 for inputting/outputting control commands, a readable/writable RAM 8, and a ROM 9 for storing software programs. The RAM 8 stores the information recorded in the magnetic recording section 1m via the magnetic recording/reproducing means 3, and also stores the stored information in the magnetic recording/reproducing means 3.
It has a function as a buffer for recording on the magnetic recording section 1m via the magnetic recording section 1m. 10 is a manual input means, such as a keyboard, for inputting commands or information to the microcomputer 6; 11 is a manual input means for detecting a specific position in the length direction of the tape body 1;
This is a position detection means that outputs a detection signal to. The computer 6, particularly the CPU 7, gives control commands to the drive means 2 to control the feeding of the tape body 1, and also controls the magnetic recording/reproducing means 3, based on commands and information inputted from each of the above-mentioned means. It also controls the image forming means 4.

Reference numeral 12 denotes image information output means for displaying a specified one of the plurality of frames 13 formed (photographed or copied) on the film section 1f. Also,
14 is a magnetic information output means for displaying a list of the stored contents of the RAM 8 outputted via the CPU 7, and is provided in a preferred embodiment.

When recording the original 5, the manual input means 10
A command is given to the CPU 7 by operating the image forming means 4, and the image forming means 4 is controlled by the CPU 7, and the image information of the original is imprinted on the film 1f set at a predetermined position. At the same time, information related to this image information, such as image information data such as a frame number, shooting date, unique search code, and a simple comment, is written into the RAM 8 by operating the manual input means 10. However, in addition to inputting data through separate operations, if, for example, employee numbers, document numbers, dates, etc. constitute sequential data, it is also possible to record them automatically rather than manually. The data is sequentially written into the RAM 8 in conjunction with the (digital) sequential data on the set paper tape or magnetic tape. In this case, manual input means 1
0 can be operated by simply activating the start switch.

When searching, operate the manual input means 10 to specify information (code, date, frame address, etc.) for the desired photographed frame 13; this specific information is included in the image information data related to the above-mentioned image information. ) and a search command. The CPU 7 controls the drive means 2 to feed the tape body 1 until it comes near a predetermined search position.
When the position detecting means 11 accurately detects the specific position, feeding is stopped. At this position, image information can be displayed by the image information output means 12. At this time, if there is any addition or modification of related information to the retrieved image information, that data can be added or updated in the RAM 8 using the manual input means 10.

It is possible to record while searching, or conversely, to search while recording, which is an operation that combines the above two operations.

When the RAM 8 is accessed by the manual input means 10 to write or rewrite the memory contents, the stored contents of the RAM 8 are
The information is recorded in the magnetic recording section 1m via the magnetic recording/reproducing means 3.

FIG. 2 is a schematic diagram of a preferred embodiment.
A long tape body 1 with a constant width has both ends attached to a winding shaft 2.
1 and 22, and can be wound up into a roll. The winding shaft 21 is rotated by the winding motor 23 only in the clockwise direction in FIG. 2 (hereinafter referred to as "normal rotation"), and rotates the tape body 1 in the left direction in FIG. ). On the other hand, the take-up shaft 22 is rotationally driven by the take-up motor 24 only in the counterclockwise direction in FIG. ”).

Specifically, the tape body 1 has a width of 8 mm or 16 mm, and includes a transparent end portion 25 with one end fixed to the winding shaft 21, and a magnetic tape portion 26 of a certain length continuous with the transparent portion 25. , continuous to the magnetic tape section 26,
It consists of a transparent film part 28 in which perforations 27 are formed at constant pitch intervals at one end in the width direction. The transparent film portion 28 is formed by sequentially forming a transparent conductive layer and a transparent photoconductive insulating layer on a transparent support mainly made of polyester, and constitutes a photoreceptor for electrophotography. Further, this transparent film portion 28 has polarization characteristics. The above-mentioned tape body 1 has three consecutive regions, and the method of making it is based on the above-mentioned tape-like body of a transparent support mainly made of polyester, and the magnetic tape section 26 is formed on this support body 4. Preferably, it is formed by magnetic coating techniques.

Image information of the document material is imprinted onto the transparent film portion 28 by the electrophotographic device 4 serving as an image forming means. The area between the two perforations 27, 27 of the transparent film portion 28 corresponds to one photographic frame 29 (one frame). As is well known, the electrophotographic apparatus 4 includes a charging section, an exposure section, a developing section, and a fixing section.

On the other hand, several detection mechanisms are arranged along the feeding path of the tape body 1. 30 is a magnetic tape section 26
a first edge detection element 3 for detecting the first edge 26e of the
1 is a magnetic head for reading information from (or writing information to) the magnetic tape section 26; 32 is a tape speed detection generator for detecting the feeding speed of the tape body 1; and 33 is a perforation generator for detecting perforation 27. This is a light-receiving section for photodetection. 34 is a polarized light source, which guides light into two systems.
One is a system in which the optical path of the light emitted in the feeding direction of the tape body is changed by a reflection mirror 35, and the light is made to enter the tape body 1 almost perpendicularly, and then enters the first end detection element 30 provided on the opposite side. This is for detecting the boundary between the portion 25 and the magnetic tape portion 26, that is, the beginning end 26e of the magnetic tape portion 26. The other system is a system that irradiates perpendicularly to the running trajectory of the perforation 27, and guides the light to the perforation detection light receiving section 33 via a polarizing filter 36 provided on the opposite side of the tape body 1, and Oration 2
used to detect the presence of 7. This second
The reason why the polarizing filter 36 is provided in the system is to utilize the polarization property of the transparent film section 28. When the irradiated light from the light source 34 passes through the transparent film section 28 and enters the light receiving section 33, Reduce the amount of light to almost zero. Therefore, the polarization plane of the polarization filter 36 is provided in a conjugate relationship with the polarization plane of the transparent film portion 28. Although the polarized light source 34 is shared by the two systems, it may be provided separately, or a light emitting diode (LED) may be used as the light source.

Furthermore, in this example, since the film section 28 has a polarization characteristic, this characteristic is utilized, but other means for detecting the film perforation 27 may be used. For example, one method is to arrange a light source and a photomultiplier tube on the same side of the film portion 28, and detect the presence or absence of perforation 27 using reflected light from the film surface. Further, although the perforation 27 is used here as an information source for specifying the frame position, the information source is not limited to perflation. That is, a method may be used in which a blip mark (optical mark) is printed in advance in a predetermined code format and is detected optically. Alternatively, a method may be used in which an optical mark is recorded during development processing (in this case, the unphotographed portion is detected by the distance from the final mark).

The magnetic head 31 and tape speed detection generator 32 are fixed to the same fixed seat 37,
When the solenoid 38 is energized, the fixing seat 37 moves in a direction substantially perpendicular to the feeding path of the tape body 1, and both the magnetic head 31 and the tape speed detection generator 32 come into pressure contact with the tape body 1. This fixed seat 3
7, the lever member 39 is driven, and the tape pad 41 fixed to the pad seat 40 acts on the back surface of the tape body 1 so as to press it toward the magnetic head 31.

The arrangement of the mechanical system described above is conceptually illustrated, and an example of a specific arrangement is shown in FIG. FIG. 3 is a view of the film loading section of this device from above. Tape body 1 is pre-attached to 2
It is wound on two take-up reels 42 and 43 and housed in a cassette case 44. This tape body 1 housed in a cassette case has a structure almost similar to, for example, a compact cassette magnetic tape for music or a cassette tape for a VCR (hereinafter, the tape body 1 housed in a cassette case 44 will be referred to as a tape body 1 housed in a cassette case 44). (abbreviated as "cassette 45").
As shown in FIG. 4, which is a cross-sectional view taken along the - line in FIG. The tape is hung between the tape guides 47 and 48. Along the running path of the stretched tape body 1, a polarized light source 34 and a light receiving element body 49 in which a first end detection element 30 and a perforation detection light receiving part 33 are integrated are arranged opposite to the polarized light source 34. Next, an electrophotographic copying device 4 is placed. The electrophotographic copying apparatus 4 includes an optical system 4a including a copying lens, a charging chamber 4b, an exposure chamber 4c (located at a position corresponding to the optical system 4a), a developing chamber 4d, and a fixing chamber 4e. Contains. A roller portion of a tape speed detection generator 32 rotatably supported via a guide post 50 is located next to the charging chamber 4b. Magnetic head 31 and tape pads 41, 4
1 is located next to this roller section.

Note that the cassette 45 shown in FIG. 3 is of a type in which the cassette case has two shafts.
It may be of a single axis type. Since a single-shaft type cassette containing a roll of silver halide film has already been put into practical use, a description of its structure will be omitted. In operation, when a single-shaft cassette containing electrophotographic film is attached to a predetermined location on the main body of the device, the tip of the tape body 1 is pulled out by a known pull-out mechanism and is latched to a take-up shaft provided on the main body of the device. rolled around. That is, regarding FIG. 2, the shaft provided in the cassette corresponds to the winding shaft 22,
The winding shaft 21 corresponds to the winding shaft that locks and winds the leading end.

Further, in order to extract image information, the transparent film portion 28 is directly irradiated by a separate projection light source (not shown), and projected onto a screen via appropriately arranged lens means and optical path changing means. . Preferably, the lamp provided in the fixing chamber 4e (often an infrared lamp is used) is also used. Details of the projection means are disclosed, for example, in earlier applications filed by the same applicant as the present application.

Regarding the electrical/control system (see Figure 2), the main body of control is the CPU included in the microcomputer 6.
It is 7. The CPU 7 is connected to each functional circuit via a plurality of I/O ports serving as interface means.

First, the first edge detection element 30 of the magnetic tape section 26
is connected to the CPU 7 via the I/O port 55. The magnetic head 31 has a magnetic recording/reproducing circuit 5
6 and is connected to the CPU via I/O port 57.
Connected to 7. When recording on the magnetic tape section 26, data from the RAM 8 is transmitted from the magnetic recording/reproducing circuit 56 to the magnetic head 31 via the CPU 7 and I/O port 57. When playing,
The data flow is the opposite; the recorded contents of the magnetic tape section 26 are read by the magnetic head 31, and the magnetic recording/recording/
The data is written to RAM 8 via playback circuit 56, I/O port 57, and CPU 7. Note that a solenoid driver circuit 58 that supplies current to the solenoid 38 is connected to the I/O port 57, and deenergization/energization of the solenoid 38 is controlled by a signal from the CPU 7.

The tape speed detection generator 32 is connected to the winding shaft 2
A driver circuit 59 that drives the winding motor 23 of No. 1
and gives a tape speed signal. The perforation detection light receiving section 33 is connected to the pulse counter 60 and the driver circuit 5.
9, and a driver circuit 61 that drives the winding motor 24 of the winding shaft 22, and supplies count pulses for the perflation 27 to the pulse counter 60, while feeding the driver circuits 59 and 61 to move the photographic frame 29 to the correct position. Give a signal to stop.

Driver circuits 59 and 61 are connected to motor current detection circuits 62 and 63, respectively. The motor current detection circuit 62 gives a signal to the I/O port 64 via the signal line S6, and from the I/O port 64, the signal is sent to the driver circuit 5 via the signal lines S1, S3, and S5.
9 to input a feedback signal. On the other hand, the motor current detection circuit 63 is connected to the I/O port 55 via the signal line S7.
The O port 55 is connected to the driver circuit 61 through signal lines S2 and S4 so as to input a feedback signal.

The pulse counter 60 is connected to an I/O port 65.
Three control signals SH, SU, and SD are input to the I/O port 65, and a data bus DBUS line is also connected thereto. Signal SH is a hold signal, a command signal that does not count,
The signal SU is an up-count signal, which is a command signal to add up the count, and the signal SD is a down-count signal, which is a command signal to subtract the count.

The electrophotographic copying apparatus 4 is connected to the CPU 7 via an I/O port 66 and is operated by control signals from the CPU 7.

The input keyboard 10 has an I/O port 67
It is connected to CPU7 via. keyboard 10
From there, command signals can be input to the CPU 7, and various data can be stored in the RAM 8.

On the other hand, a circuit based on the fact that the tape body 1 is made into a cassette is also provided, and the cassette loading switch 68
automatically closes the switch contact when the cassette 45 (FIG. 3) is loaded. This contact closing signal is input to the CPU 7 via the I/O port 67.
Further, the CPU 7 outputs a signal to the cassette lock circuit 70 via the I/O port 69, and when the device is in operation, a mechanism is established to prevent the cassette 45 from being removed from the cassette loading chamber 46 (Fig. 4). Appropriate stopping measures should be taken. Furthermore, as a function of the stop means, when the contents of RAM 8 are changed even once, the magnetic tape section 26 is
It is necessary to copy the contents of RAM 8, and this is also to prevent the cassette 45 from being taken out without copying it.

Now, in this image information recording/retrieval apparatus, an electronic control system is devised to stop one frame corresponding to one perforation at a specific position with high precision during recording or retrieval. Qualitatively speaking, when a desired frame is taken out from the current stop position, the frame is initially advanced at high speed, but when the desired frame is approached, it is switched to low speed and the perflation corresponding to the desired frame is performed. Detect and
This is a control that immediately stops feeding and stops it at a predetermined position with high precision.

FIG. 5 is a circuit diagram for explaining this, including a perforation detection light receiving section 33, a forward rotation driver circuit 59 (consisting of a control section 59a and a drive system 59b), and a reverse rotation driver circuit 61 ( 6 shows details of the motor current detection circuits 62 and 63 (composed of a control section 61a and a drive section 61b) and motor current detection circuits 62 and 63.

In the perflation detection light receiving section 33, the perflation irradiation light is transmitted to two photodiodes.
Light is received by PD1 and PD2. Photodiode PD1,
PD2 is connected to the two inputs of operational amplifier OP1 so that the polarities are opposite to each other, receives the perforation transmitted light with a time difference, and outputs a voltage waveform in which trapezoidal pulses are continuous in the positive and negative directions. Details of this are shown in FIG. That is, the photodiodes PD1 and PD2 are planar photodiodes separated and insulated at the center, and the width of one photodiode is slightly larger than the width of the perforation 27.
When the transparent film portion 28 is fed from left to right in FIG. 6a, the photodiode PD1 alone outputs a trapezoidal pulse in the positive direction as shown in FIG. 6b. On the other hand, photodiode PD2
From here, a pulse having a polarity opposite to that of the above-mentioned pulse is outputted so as to be spatially symmetrical about the central junction of both photodiodes PD1 and PD2. When these two pulses are converted from current to voltage by the operational amplifier OP1 and combined, a voltage waveform in which trapezoidal pulses swing continuously in positive and negative directions is obtained, as shown in FIG. 6c. The approximate midpoint of this waveform from positive to negative corresponds to zero potential, and the temporal position of this zero potential corresponds to the junction of both photodiodes PD1 and PD2, in other words, the center position of perforation 27. ing.

This positive/negative waveform signal is input to the pulse counter 60 and counted up by 1, or
Or count down. In this example, the count number and the frame position correspond to each other, and the counter circuit 60
If the count number is n, this corresponds to the fact that the frame is currently at the n-th frame position in the transparent film section 28 starting from the end of the magnetic tape section 26.

The waveform signal is also input to a zero potential detection circuit 59a, which is a control section included in the driver circuit 59, and a zero potential detection circuit 61a, which is a control section included in the driver circuit 61. Zero potential detection circuit 5
9a is used when the transparent film portion 28 is fed leftward, and detects zero crossing from negative to positive. On the other hand, the zero potential detection circuit 61a is used when the transparent film portion 28 is fed in the right direction (rewinding direction), and detects a zero cross from positive to negative. Respective zero potential detection circuits 59a, 61a
Analog switches 71 and 72 are connected to the output section of each analog switch 7.
1 and 72 are controlled based on signals from the CPU 7, and when sending the transparent film section 28 at high speed.
It is OFF and turns ON during low speed feed. Specifically, an FET or CMOS semiconductor switching element is used as the analog switch, and is turned ON when the CPU 7 counts the frame immediately before the target frame based on the comparison result. When the center position of the perforation corresponding to the target frame is detected, a zero potential signal is outputted, and the signal is applied to the drive section 59a or the drive section 61b.
The motors 23 and 24 of the drive units 59b and 61b are deenergized and stopped precisely at the center position of the perforation 27.

The drive unit 59b, which rotates the motor 23 in the normal direction when feeding the tape body 1 to the left, sends the target constant speed feed signal S1 set in the CPU 7 to the D/A converter 73.
converts it into an analog quantity and supplies current to the motor 23 via the operational amplifier OP2. This motor drive section 59b includes a resistor 75, an analog switch 76,
A servo system 78 consisting of a generator 77 is connected, and the generator 77 controls the winding motor 23 to maintain a constant feed speed. This is used when reading or writing information on the magnetic tape section 26 during forward rotation, and is controlled by an analog switch using a control signal (signal S5) from the CPU 7.
Turn it ON to achieve constant speed feed.

The drive unit 61b that reverses the motor 24 when feeding the tape body 1 in the right direction converts the right feed signal S2 inputted and set to the CPU 7 into an analog quantity by the D/A converter 74 and sends it to the motor via the operational amplifier OP3. A current is supplied to 24. The configuration of this drive section 61b is as follows: from the forward rotation drive section 59b to the servo system 7.
It is the same as removing 8. When the analog switch 72 is controlled by the signal S4 to come one frame ahead and stop at the desired frame position, it operates based on the output of the zero potential detection circuit 61a.

The motor current detection circuit 62 connected from the motor 23 via the comparator OP4 includes an RC integration circuit, and detects a current when an overcurrent flows to the take-up motor 23 (for example, so that rotation of the motor 23 is physically prevented). (at the end of winding, etc.), the buffer 79 outputs a signal S6 to stop the motor 23. That is, this RC integration circuit does not detect a short-term excessive current when starting the motor 23, and when the excessive current continues for a certain period of time or more, the signal S6 is output from the buffer 79.
It is intended to obtain. On the other hand, a motor current detection circuit 63 connected to the motor 24 via the comparator OP5 has the same configuration as the motor current detection circuit 62, and outputs a signal S7 to stop the motor 24 due to overcurrent. Further, the effect of the RC integration circuit is the same as that in the case of overcurrent detection of the motor 23.

Next, the operation of the recording/retrieval device having the above configuration will be explained in the seventh section.
The description will be made based on the general flowchart shown in the figure and the detailed flowcharts shown in FIGS. 8A to 8F.

As shown in FIG. 7, when the cassette 45 is loaded and started, the contents of the magnetic tape section 26 are read and all this information is stored in the RAM 8 (subroutine #1). Next, there are two selectable modes, and you can select one as appropriate. The first mode is a mode for recording document information, in which document information is imprinted at a desired frame position (hereinafter referred to as a frame address) on the transparent film section 28, and information related to this document information is input using a manual input means. This is a mode in which data is written to the RAM 8 by operating the keyboard 10 (subroutines #2 and #3). In this mode, you can shoot just one frame or multiple frames.
Furthermore, the frames may be continuous or may be placed at discrete positions. The second mode is a mode for searching recorded document information, in which the keyboard 10
In this mode, a frame address is input in , the recording frame specified by the frame address is stopped at a predetermined position, and the image information output means 12 (Fig. 1) displays it or makes a hard copy (subroutine). #4). At this time, if you want to add or change related information for the recorded frame,
The contents of RAM 8 are rewritten by operating keyboard 10 (subroutine #5). Adding this data,
If there is no change, the contents of RAM8 remain unchanged.

It is also possible to combine the above first mode and second mode. That is, it is a combination mode in which the first mode is executed and then the second mode is executed, or conversely, the second mode is executed and then the first mode is executed.

When the first mode, second mode or combination mode is finished, the tape is rewound and the stored contents of RAM 8 are transferred to the magnetic tape section 28.
(subroutine #6). Finally, the cassette 45 is taken out and the operation is completed.

More specifically, with reference to FIG. 2, the cassette 45 is loaded into the cassette loading chamber 46 of the apparatus (step S1). The cassette loading switch 68 is automatically turned on (step S2), and this signal is input to the CPU 7 via the I/O port 67.
The device itself becomes operational. Next, the tape body 1 is preferably driven based on this signal. Alternatively, the driver circuit 61 may be started by a start command input from the keyboard 10. The tape body 1 is fed rightward by the take-up motor 24 (step S3), but when the first end 26e of the magnetic tape section 26 is detected by the first edge detection element 30, the tape body 1 stops running. (steps S4, S7). If not detected, continue driving to the right (loop of steps S5, S3, S4)
Or, taking into account the possibility of detection failure, when the tape body 1 does not move because it has been wound up to the limit on the right winding shaft 22 (step S5), the motor current detection circuit 6
3 is activated (step S6) and stops the motor 24 (step S7).

In any case, when the tape body 1 stops running, the motor 23 is then driven to send the tape body 1 to the left at a constant speed (step S8). At this time,
Shortly before the motor is driven, the solenoid 38 is energized to press the magnetic head 31, the tape pad 41, and (the roller portion of) the tape speed detection generator 32 against the tape body 1. The recorded contents of the magnetic tape unit 26 are read by the magnetic head 31 and are read through the magnetic recording/reproducing circuit 56, I/O port 57 and CPU 7.
Store to RAM8. (Step S9). In this case, this reading is performed regardless of whether the cassette is a completely new cassette or a photographed cassette, that is, regardless of whether image information data has been written on the magnetic tape section 26.

The tape body 1 continues to run without detecting the boundary between the magnetic tape section 26 and the transparent film section 28 (step S10), and the perforation detection light receiving section 33 detects the first perforation of the transparent film section 28. When the oscillation 27 is detected, tape running is stopped (step S11). In response, the magnetic head 31 and tape butt 41 are retracted. For convenience, the address of the frame corresponding to the position of the first perforation 27 will be referred to as the first address. Therefore, the count value n in the counter circuit 60 itself represents the frame address and indicates that the frame is currently at the n-th frame position. However, it should be noted that the method of specifying the frame address is not limited to this, as other methods may also be considered.

Next, if the recording mode is the photographing mode and the frame is stopped at a specific frame, it is determined whether to write or rewrite data related to that frame (step S12). addition,
If correction is necessary, input the data from the keyboard 10. The contents of RAM8 are updated (step S13). When the RAM 8 is updated even once through a series of operations, the CPU 7 generates a cassette lock signal, activates the cassette lock circuit 70 via the I/O port 69, and mechanically loads the cassette. Make it impossible to take it out of the room (step S13). This is to prevent the risk of extracting the contents of the magnetic tape unit 26 without rewriting them to the same contents when the contents of the RAM 8 are changed.

The next step is to move the desired frame to a predetermined position (predetermined copying position or predetermined image output position). Enter the frame address into the register in the CPU 7 using the keyboard 10 (step
S14). The current position of the frame is determined by the counter circuit 60,
Since the number is set in advance in another register in the CPU 7 via the I/O port 65, the CPU 7 determines whether to send the data to the left or to the right by comparing these two data. (Step S15). Note that at this time, a start command from the keyboard 10 may be used in addition to inputting the frame address data. In this example, only inputting the frame address is used as a start signal. Either of the driver circuits 59, 61 is driven according to the judgment of the CPU 7 (steps S16, S17,
S18). At the same time, a judgment is made as to whether to run at high speed or at low speed (step S19).
When the address difference exceeds a predetermined constant value, the vehicle is driven at high speed (step S21), and when it is less than that, the vehicle is driven at low speed (step S20). If this address difference falls below the predetermined value while the vehicle is running, the vehicle automatically switches to low-speed running (steps S22, S20). 1
When it comes before the frame, the zero detecting section 59a or 61a shown in FIG. 5 is activated and stops accurately at the frame corresponding to the designated address (step S23).

In the next step, a human can decide whether or not to continue tape running (step S24). If the search is not to be continued, recording in the specified frame is performed (step S25). A document is placed in a predetermined position, and while sequentially feeding the transparent film section 28 charged in the charging chamber 4b one frame at a time, the optical system 4a is operated to move the exposure chamber 4c, the developing chamber 4d, and the fixing chamber 4c ( 3), a known electrostatic copying process is carried out. This series of work is done in ROM9
(Figure 1) The built-in program allows the CPU to
7 issues appropriate commands to control exposure and film feeding operations. However, the basic command for copying is performed by operating the keyboard 10.

Usually, before or after this copying process,
Data related to this recorded image, such as the shooting date, classification code, title, etc., are written into the RAM 8 from the keyboard 10.

The next step is post-processing after executing the search mode, record mode, or combination mode and before attempting to remove the cassette.

First, if no modification or change is made to the RAM 8, the stored contents of the RAM 8 and the stored contents of the magnetic tape unit 26 are the same, so the cassette can be taken out as is (steps S26, S27). However, if it is accessed even once, it needs to be rewritten.

A code for recording the contents of RAM 8 on the magnetic tape section is input by key (step S27). In response, the CPU 7 energizes the driver circuit 61 and causes the take-up motor 24 to rewind the tape body 1 in the right direction (step S28). Of course, at this time the vehicle was running at high speed. The count value of the count circuit 60 counts down (step S29), and when the count output (the same count value is also present in the register in the CPU 7) reaches zero (steps S29, S30), the tape speed is decelerated based on the instruction from the CPU 7. At the same time, when the first end 26e of the magnetic tape section 26 is detected (step S32), the running is stopped (step S31).
S33) Let. In response, the magnetic head 31 and the like are pressed against the magnetic tape section 26 by the operation of the solenoid 38. Thereafter, the tape is sent in the forward rotation direction (to the left) by the take-up motor 23 (step S34).
While being sent, the data from the RAM 8 is passed through the CPU 7, the I/O port 57, and further converted into a current by the magnetic recording/reproducing circuit 56, and is recorded on the magnetic tape unit 26 by the magnetic head 31 (step S35).

Recording on the magnetic tape section 26 is completed when the first perforation 27 is detected, that is, when the count value of the counter 60 reaches 1.
A command is issued by the CPU 7, and the running of the tape body 1 is stopped (step S36). At the same time, the CPU 7 derives a signal to disable the cassette lock circuit 70 via the I/O port 69,
Turn off the cassette lock signal (step S36).
As a result, the mechanical locking state is released and the cassette 45 can be taken out from the cassette loading chamber 46.

In the above description of the embodiment, the tape body 1 is
This is the tape body shown in FIG. 9a, which has a magnetic tape section 26 at one end, followed by a transparent film section 28 for electrophotography, which is provided with a perforation 27. As shown in FIG. 9b, the magnetic tape section 26 does not need to be provided over the width of the tape body 1, but may be formed in a narrow stripe shape in consideration of recording density and magnetic head. The magnetic recording section 26 is
Preferably, a transparent film is used as a base and magnetically coated.

FIG. 10 shows another modification of the tape body 1,
This tape body 1 is of a type in which no perforation is provided in the transparent film portion 1f. This is because detecting the through holes in the transparent film portion 1f is quite difficult and requires special measures as shown in the above-mentioned embodiments.

FIG. 11 shows an outline of the configuration of an apparatus using the tape body 1 shown in FIG. 10. This device corresponds to the device shown in FIG. 2, and the same or equivalent parts as in FIG. 2 are denoted by the same reference numerals, and redundant explanation will be omitted.

1 m of magnetic recording section whose tip is fixed to the winding shaft 21
A hole 100 is provided at a short distance from the tip. This hole 100 is a light emitting diode 1
01 and the photoelectric conversion element 30 for light reception, and indicates the recording start point (or reproduction start point) of the magnetic recording section 1m.

102 is a rotary encoder. After the cassette is loaded, the roller portion of the rotary encoder 102 is always kept in pressure contact with the tape body 1, and serves not only to detect the traveling speed of the tape body 1 but also to detect the frame address. The output of the rotary encoder 102 is input to the counter circuit 60 and also to the frequency-voltage conversion circuit 103.
(FV converter). F/V converter 103
For example, when the tape is running at high speed, the high frequency pulse from the rotary encoder 102 is converted into a high voltage, and this generated voltage is applied to the driver circuit 59. The rotation of the take-up motor 23 is controlled by this control voltage.

The other configurations and operations are roughly the same as those of the previous embodiment, and will therefore be omitted.

This device has the advantage of eliminating the difficulty of detecting perforation in the transparent film portion 1f.

In the above embodiment, the information regarding the photographed frames is transferred from the magnetic recording section 1m to the RAM8.
Although the inside of the RAM 8 is operated by external input means, such information operation methods are not limited to those using electrophotographic film; for example,
A dry silver film may also be used.
Further, although the RAM 8 is a semiconductor memory included in a microcomputer, the use thereof is not particularly limited to that within the microcomputer. It may also be a combination of a microprocessor or dedicated digital control circuit and conventional semiconductor memory.

[Brief explanation of drawings]

Fig. 1 is a schematic block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of the mechanical system arrangement and electrical system of a more specific embodiment, and Fig. 3 is a concrete arrangement of the cassette and mechanical system. Figure 4 shows - of Figure 3.
5 is a circuit diagram of the main part of the electrical system, FIG. 6 a, b, and c are explanatory diagrams of perforation detection, respectively, and FIG. 7 is a diagram for explaining an embodiment of the present invention. General flow diagram, Figures 8A to 8
Diagram F is a detailed flowchart. FIGS. 9a and 9b are explanatory diagrams of the tape body, respectively, FIG. 10 is a diagram showing a modified example of the tape body, and FIG. 11 is a configuration diagram of an apparatus according to another embodiment of the present invention. 1...Tape body, 1m...Magnetic recording section, 1f...
...Film section, 3...Magnetic reading/writing means,
4... Image forming means, 6... Control/calculation means such as a microcomputer, 7... CPU, 8...
RAM, 9... ROM, 10... Manual input means, 11... Position detection means, 12... Image information output means, 21, 23... Winding shaft, 22, 24...
... Winding motor, 26 ... Magnetic tape section, 28 ...
Transparent film section, 29... photographing frame, 31... magnetic head, 32... tape speed detection generator, 33... light receiving section for perforation detection,
44...Cassette case, 46...Cassette loading chamber, 59, 61...Driver circuit, 60...Counter circuit, 102...Rotary encoder.

Claims (1)

[Scope of Claims] 1. A light-transmitting leader film portion, and an electrophotographic image is formed frame by frame, and an optically detectable mark is provided at a position corresponding to each frame position. A photographic film section is attached in advance, and the camera is arranged between the photographic film section and the leader film section, and records image information data regarding the image formed on the photographic film section as digital data. A tape-shaped image information recording/retrieval medium is provided in which a magnetic tape section whose recorded contents can be changed and erased according to commands is connected in series with the leader film section, magnetic tape section, and photographic film section in this order. an information input mode in which the recording/retrieval medium is driven in the longitudinal direction by the driving means, an image is recorded on a frame of the photographic film section specified by the input means, and the image information data is recorded on the magnetic tape section; An image having a search mode in which image information data recorded on the magnetic tape section is searched based on search information input from the input means, and a photographed frame of the photographic film section corresponding to this image information data is searched. An information processing device, comprising a cassette containing the image recording/retrieval medium, a mechanism for loading the cassette into the device body, and a leading edge detection means for detecting the leading edge of the magnetic tape section at the start of recording/retrieving. a mark counting means for counting the marks on the photographic film portion of the image recording/retrieval medium driven by the driving means; and a photographed mark indicating that the frame has been photographed when the image has been photographed. data generating means for generating digital data and writing it into the memory means; memory means for temporarily storing the image information data; and a head detecting signal of the magnetic tape portion being outputted from the head detecting means at the start of recording/retrieval. Then, the digital data recorded on the magnetic tape section is read and written into the memory means, and in the information input mode, image information data regarding the image taken in the frame of the photographic film section is written from the input means into the memory means. In the search mode, a frame on the photographic film section is searched based on the digital data written in the memory means, the photographed digital data, and the frame position information from the mark counting means, and when the recording/search is completed, the above-mentioned 1. An image information processing device comprising: control/arithmetic means for recording the contents of the memory means on a magnetic tape section.