JPH10261070A - Image input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a film from being uselessly damaged, by providing a means for saving a magnetic head from the surface of film when it is not necessary to read magnetic information. SOLUTION: A magnetic head 24 is held by a holding member 41 fixed on the rotary shaft of saving motor 40. A CPU rotates the saving motor 40 back and forth while controlling a magnetic head saving motor driving circuit. Thus, the magnetic head 24 can be touched to/separated (saved) from the magnetic reading plane of roll film 23 corresponding to the rotating direction of rotary shaft. When it is detected the magnetic information of all frames is completely read, the CPU performs positive (YES) decision, stops driving a DC motor and stops feeding (taking up) the roll film 23 to around a take-up spool. The CPU rotates the saving motor 40 backward by controlling the magnetic head saving motor driving circuit. Thus, the magnetic head 24 is moved away from the surface of film and can be saved from the film surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image input device for reading an image of a transparent film original such as a photographic film, and more particularly to an image input device for a long film.

[0002]

2. Description of the Related Art An image input device for reading a film image taken by a camera is known as a film scanner. This film scanner is used for reading an image of a negative film or a reversal film and taking it into a personal computer.

Here, apart from the 35 mm film, a new standard film has been proposed. This new film is a film that can be used with a long film (hereinafter referred to as a “roll film”) stored in a cartridge and can also add magnetic information. A film scanner dedicated to a roll film has been separately proposed (for example, see Japanese Unexamined Patent Application Publication No.
-240874).

In a film scanner dedicated to roll films, when a cartridge is loaded in a loading section, the roll film is automatically fed out to a transport path. In the transport path,
A pair of rollers for feeding the film, a magnetic head for reading and writing magnetic information in a magnetic storage area of the film, an aperture serving as an opening for reading an image, and the like are arranged. When the film in the transport path is illuminated through the aperture, the transmitted light is guided to the image reading means, and the image of each frame is read. The above publication discloses a technique capable of displaying an image of each frame and magnetic information on a screen of a video monitor using an area sensor as an image reading unit.

[0005]

In a conventional film scanner dedicated to roll film, the magnetic head is always kept pressed against the surface of the film original on which the magnetic storage area is formed. Has been pointed out.
Since the magnetic storage area (magnetic layer) is scraped by long-term use, magnetic information is degraded. If the magnetic head is large enough to span the image storage area, image information may be degraded.

[0006] In addition, the film scrapes due to the contact of the magnetic head may clog the magnetic head and interfere with the magnetic reading, and may scatter and adhere to the image storage area to cause deterioration of image information. Further, in a film with a lens, magnetic information is not usually written at the time of photographing. Therefore, when the object to be read is a film with a lens, it can be said that there is no need to establish a system capable of magnetically reading.

The present invention has been made in order to solve such a problem, and provides an image input apparatus having means for retracting a magnetic head from a film surface when it is not necessary to read magnetic information. The purpose is to:

[0008]

According to the present invention, an image is read from an image storage area of a long film having an image storage area and a first magnetic storage area for each frame, and an image signal is output. Image reading means, magnetic information reading means for reading magnetic information in the magnetic storage area and outputting a magnetic information signal, and relatively contacting or separating the magnetic information reading means and the first magnetic storage area forming surface of the long film. And a moving means for moving.

According to a second aspect of the present invention, in the image input device according to the first aspect, bar code information stored in a data disc provided in a cartridge for storing a long film is detected, and the bar code information is detected. Bar code detecting means for outputting a code information signal; determining means for determining whether or not the magnetic information reading means and the long film are relatively separated based on the bar code information signal; and Control means for causing the moving means to hold the magnetic information reading means and the long film relatively separated based on determining that the reading means and the long film are relatively separated from each other. It is characterized by.

According to a third aspect of the present invention, in the image input device of the second aspect, the judging means includes, in the bar code information, information that the cartridge is mounted on a film with a lens. Based on this, it is characterized that it is determined that the magnetic information reading means and the long film are relatively separated from each other. According to a fourth aspect of the present invention, in the image input device according to the first aspect, the magnetic information reading means is configured to control the first of the at least one frame of the long film.
A first determining means for determining whether or not there is write information in the magnetic information read from the magnetic storage area; and controlling the moving means based on the first determining means determining that there is no write information; And a control unit for maintaining the magnetic information reading unit and the first magnetic storage area forming surface relatively separated from each other.

According to a fifth aspect of the present invention, in the image input device of the fourth aspect, the magnetic information writing means for writing magnetic information in the first magnetic storage area and the first determining means have no write information. Writing control means for writing the no-write information to the magnetic information writing means in the second magnetic storage area different from the first magnetic storage area for each frame of the long film based on the determination. Features.

According to a sixth aspect of the present invention, in the image input device of the fourth aspect, read control means for causing the magnetic information reading means to read magnetic information in the second magnetic storage area of the long film; Second determining means for determining whether or not there is no-write information in the magnetic information read under the control of the read control means, wherein the first determining means determines that the second determining means has no-write information. It is characterized in that it is determined that there is no write information based on the determination.

According to a seventh aspect of the present invention, in the image input apparatus according to the fourth aspect, the image input apparatus further comprises an input unit for receiving a command from an external device, and the control unit controls the magnetic field from the external device via the input unit. When the first determining means determines that there is no write information even after receiving the information reading instruction, the magnetic information reading means and the first magnetic storage area forming surface should be kept relatively separated from each other. It is characterized by.

According to an eighth aspect of the present invention, in the image input apparatus of the fourth aspect, the image input apparatus further includes an output unit for transmitting information to an external device, and the first determination unit determines that there is no write information. Based on this, the control unit outputs the no-write information to the external device via the output unit. According to a ninth aspect of the present invention, in the image input device of the fourth aspect, the image input device further includes a display unit for displaying no writing information based on the first determining unit determining that there is no writing information. It is characterized by the following.

(Operation) According to the first aspect of the present invention, the moving means relatively contacts or separates the magnetic information reading means and the magnetic storage area forming surface of the long film. Therefore, when it is not necessary to read the magnetic information, the magnetic information reading means can be retracted from the magnetic storage area forming surface, that is, the film surface.

According to a second aspect of the present invention, in the image input apparatus according to the first aspect, when a cartridge containing a long film is loaded, the bar code detecting means is provided with a data provided in the cartridge. Detect barcode information stored on the disc. The bar code information includes the film type. Therefore,
The determining means determines whether or not the magnetic information reading means and the long film are relatively separated based on the bar code information signal, and as a result, the determining means determines whether the magnetic information reading means and the long film are relatively separated. When it is determined that the magnetic information reading unit and the long film are relatively separated from each other, the control unit causes the moving unit to keep the magnetic information reading unit and the long film relatively separated.

Therefore, it is possible to keep the magnetic information reading means in a retracted state based on the bar code information signal. According to a third aspect of the present invention, in the image input device of the second aspect, the film type included in the barcode information stored in the data disk of the cartridge is such that the cartridge is for a film with a lens. It also includes information on whether or not it is not. Therefore, based on the fact that the information that the cartridge was mounted on the film with the lens is included in the barcode information, the determining means relatively separates the magnetic information reading means from the long film. Judge to make it.

Therefore, when the cartridge to be read is mounted on a film with a lens,
From the beginning, the magnetic information reading means can be kept in the retracted state. According to a fourth aspect of the present invention, in the image input device according to the first aspect, a camera capable of loading a long film includes one capable of writing photographing information in the first magnetic storage area and one capable of not. is there. Then, when the camera writes the photographing information, in many cases, the photographing information is written from the first frame.

Therefore, the first determining means determines whether or not the magnetic information read from the first magnetic storage area of at least one frame of the long film by the magnetic information reading means includes write information. However, based on the fact that the first judging means judges that there is no write information, the moving means is controlled to keep the magnetic information reading means and the magnetic storage area forming surface relatively separated.

Therefore, when the reading of the magnetic information is started, but it is determined that the magnetic information read from the first magnetic storage area of at least one frame of the long film has no write information, the magnetic information reading is immediately performed. The means can be kept in the retracted state.

According to a fifth aspect of the present invention, in the image input device of the fourth aspect, the writing control means determines that the first judging means judges that there is no writing information. The non-write information is written to the magnetic information writing means in a second magnetic storage area different from the first magnetic storage area for each frame. Therefore, reading of the cartridge is 2
Since the magnetic information in the second magnetic storage area can be referred to in the case of the second time or later, it is not necessary to determine again whether or not writing has been performed.

According to a sixth aspect of the present invention, in the image input device of the fourth aspect, the second determining means determines whether or not there is no-write information in the magnetic information read under the control of the reading control means. to decide. Then, the first determining means determines that the second
It is determined that there is no write information based on the determination means determining that there is no write information. Therefore, when the cartridge is read for the second time or later, and when the magnetic information in the second magnetic storage area is the information without writing, the magnetic information reading unit can be promptly kept in the retracted state.

According to a seventh aspect of the present invention, in the image input device according to the fourth aspect, even if a command for reading magnetic information is received from an external device via the input unit, the first determination means can determine the write information. When it is determined that there is no magnetic information, the state where the magnetic information reading unit and the magnetic storage area forming surface are relatively separated from each other is maintained.
Therefore, when the image input device determines that it is not necessary to read the magnetic information, the image input device can ignore the command from the external device and hold the magnetic information reading unit in the retracted state.

According to an eighth aspect of the present invention, in the image input device according to the fourth aspect, when the first determination means determines that there is no write information, the control means performs no writing via the output unit. Outputs information to an external device.

Therefore, in the external device, it is possible to perform an appropriate display such as that there is no magnetic information on the screen of the image to be displayed upon receiving the non-writing information. According to a ninth aspect of the present invention, in the image input device according to the fourth aspect, when the first determination means determines that there is no write information, the display means performs a display with no write information. Therefore, when the long film of the loaded cartridge has no magnetic information written thereon, it can be easily visually recognized from the outside.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an image input device according to an embodiment of the present invention. This embodiment is based on Claim 1.
To claim 5. The image input device includes a central processing unit (hereinafter, referred to as a “CPU”) 1, a memory 2 connected to the central processing unit 1, and an interface circuit (hereinafter, an “IF circuit”).
3, light source drive circuit 4, motor drive circuits 5, 6,
A / D converter 7, signal processing circuit 8, line sensor driving circuit 9, magnetic signal processing circuit 10, magnetic head retracting motor driving circuit 11, data disk reading sensor driving circuit 12
, Light source 13, and optical system (toric mirror 14, reflection mirror 15, 45-degree reflection mirror 16, projection lens 17)
, A line sensor 18, a loading chamber for loading a cartridge 19, a data disk reading sensor 20, a take-up spool 21, a DC motor 22, a cartridge 19
A transport path of the roll film 23 fed from the printer, a magnetic head 24, a pair of rollers (tension roller 25, scan roller 26), a stepping motor 27, and the like are provided.

This image input device is connected to the host computer 50 via the IF circuit 3. The host computer 50 includes a central processing unit, a program memory, and a working memory. This host computer 50
Is a display device 51 having a monitor screen as an output device.
And an input device 52 composed of a keyboard and a mouse as input devices.

FIG. 2 is an external view of the roll film 23. The roll film 23 shown in FIG.
9 shows a state in the middle of the drawing from FIG. Cartridge 19
Has a cartridge spool 19b rotatably supported at both ends in the longitudinal direction of a cylindrical case 19a, and an opening 19c provided on a side. The roll film 23 has its base end fixed to the cartridge spool 19b, is wound up, and is entirely stored in the case 19a. Roll film 23
The tip moves into and out of the case 19a through the opening 19c in accordance with the forward / reverse rotation of the cartridge spool 19b.

At one side end of the cartridge 19,
A data disk 19d on which optically readable barcode information is stored is provided. The barcode information includes the type of the film and the film,
Film information such as undeveloped or developed has been included. The film type includes information on whether or not the film is a film with a lens.

As shown in FIG. 2, a predetermined area of the leading end (pull-out end) of the loam film 23 shown on the right side in the figure is called a leader section. An image storage area 30 of each frame is provided at a predetermined interval after the leader section. The leader unit is provided with a leader unit magnetic storage area 31 and a perforation 32 at one end in the film width direction. Also,
The reader unit is provided with a reader unit magnetic storage area 33 and a reader unit barcode 34 at the other end in the film width direction.

Each frame has two perforations 35, 3 outside the image storage area 30 at one end in the film width direction.
6 are provided. Each frame has an image storage area 30.
Is provided outside the other end in the film width direction. Although not shown, a perforation indicating the last is provided on the rear end side after the last frame.

The film information of the film is stored in the magnetic storage areas 31 and 33 of the reader section. Further, the leader bar code 34 displays the film information of the film by a density difference. The film information includes the type and type of the film, the frame number, the total number of frames, and the like. The type of the film indicates whether the film is a color film, a monochrome film, a positive film, a negative film, or the like.

In the frame magnetic storage area 37, information on photographing such as a frame number, a title, a photographing date and time, a photographing condition, and a designated print size is recorded.
These can be written by the camera when shooting. FIG.
The outline of the image input device shown in FIG. Cartridge 1
Although not shown, the loading chamber 9 is provided with a fork shaft to which the cartridge spool 19b is engaged. This fork shaft is connected to the rotation shaft of the DC motor 22 via a gear mechanism. That is, the cartridge spool 19b
And the take-up spool 21 are driven by the same DC motor 22. That is, when the user loads the cartridge 19 into the loading chamber of the image input apparatus, the spool 19b of the cartridge 19
Connected to one shaft.

When the user closes the lid of the loading chamber or operates the start button thereafter, power is supplied to each circuit in the image input apparatus, and each circuit is started. At this time, the data disk reading sensor 20 is controlled by the data disk reading sensor driving circuit 12 to operate the cartridge 1.
9 reads the bar code information of the data disk 18d provided on one side surface.

The motor drive circuit 5 controls the rotation speed, rotation direction, stop, etc. of the DC motor 22 in accordance with instructions from the CPU 1. When the DC motor 22 is driven to rotate forward, the roll film 23 is fed from the cartridge 19 to the transport path. The roll film 23 passes through the magnetic head 24 and the roller pair (25, 26) and
It is wound up. When the DC motor 22 is driven in the reverse direction, the roll film 23 is wound into the cartridge 19 from the transport path.

The motor drive circuit 6 rotates the step motor 27 under the control of the CPU 1. As a result, the roller pair (25, 26) rotates stepwise, and the film is fed intermittently in the sub-scanning direction of the roll film 23. The feeding of the film at the time of pre-scanning or the reading of magnetic information, and the mere feeding of the film unrelated to reading are mainly performed by the DC motor 2.
The rotation is performed by using a take-up spool 21 which is rotated by 2. At this time, the tension roller 25 moves in a direction away from the scan roller 26. This is to smooth the passage of the roll film 23 and to prevent the roll film 23 and the scan roller 26 from being damaged.

At the time of image reading during the main scan, the tension roller 25 is urged toward the scan roller 26, and the step motor 27 intermittently moves the film. At this time, the DC motor 22 rotates the take-up spool 2 to such an extent that the roll film 23 is not loosened.
Rotate 1 The light source drive circuit 4 causes the light source 13 to emit light for illuminating the roll film 23 under the control of the CPU 1. The light source 13 includes, for example, R (red), G (green), B
(Blue) light-emitting diodes (hereinafter, referred to as “LEDs”). In this case, the light source 12 is a three-color LED
Switch to light. When the light source 13 is a white light source, the light source 13 may include three color filters of R (red), G (green), and B (blue). When three color filters are provided, a three color filter switching mechanism is provided.

The light emitted from the light source 13 is transmitted to the toric mirror 1
4, where the light flux is adjusted and reflected, and reflected by the 40-degree reflecting mirror 15 toward the roll film 23. Then, the transmitted light of the roll film 23 is reflected by the 45-degree reflection mirror 16 toward the projection lens 17. The projection lens 24 forms an image of the roll film 23 on the light receiving surface of the line sensor 18.

The line sensor 18 includes an image storage unit, which is a plurality of photoelectric conversion units arranged in one line, and a transfer unit that transfers charges stored in the image storage unit. The line sensors 18 are arranged such that the light receiving surfaces of the plurality of photoelectric conversion units arranged in one row are orthogonal to the moving direction of the roll film 23. The direction in which the charges accumulated in the line sensor 18 are scanned is the main scanning direction. In the present embodiment, the main scanning direction matches the arrangement direction of the plurality of photoelectric conversion units. The relative movement direction between the line sensor 18 and the roll film 23 is the sub-scanning direction. This sub-scanning direction coincides with the moving direction of the roll film 21 in the present embodiment.

The line sensor 18 is either a monochrome image sensor or a color image sensor. The light source 13 used for the monochrome image sensor is R (red),
The light source is a light source for switching light of three colors of G (green) and B (blue) or a white light source. The light source 13 used for the color image sensor is a white light source. The line sensor 18 reads an image under the control of the line sensor drive circuit 9.
The line sensor drive circuit 9 mainly performs the following control operation according to the instruction of the CPU 1. Line sensor drive circuit 9
Controls the accumulation operation and accumulation time of the line sensor 18. Further, the line sensor driving circuit 9 controls the main scanning for sweeping out the accumulated charges (image signal / electric signal) to the signal processing circuit 8.

The signal processing circuit 8 amplifies the signal from the line sensor 18 according to the instruction of the CPU 1, performs signal processing, and supplies it to the A / D converter 7. Signal processing includes dark current correction, shading correction, CDS (Correlated D
ouble Sampling: correlated double sampling), and even / odd correction processing. The A / D converter 7 includes a signal processing circuit 8
Is converted into a digital signal having a predetermined number of bits and supplied to the CPU 1. The number of bits is, for example, 8 bits.

The magnetic head 24 includes a magnetic signal processing circuit 10
Under the control of, the magnetic information in the reader magnetic storage area 33 and the frame magnetic storage area 37 (see FIG. 2) is read. In addition, the magnetic head 24 writes data in the reader magnetic storage area 33 or the frame magnetic storage area 37 under the control of the magnetic signal processing circuit 10.

The magnetic signal processing circuit 10 digitizes the magnetic information read by the magnetic head 24 under the control of the CPU 1 and provides it to the CPU 1. Also, the magnetic signal processing circuit 10
Supplies information to be written to the reader magnetic storage area 33 or the frame magnetic storage area 37 to the magnetic head 24 under the control of the CPU 1. The memory 2 is a program memory and a working memory. The CPU 1 mainly performs the following control operation according to the program set in the memory 2. When the cartridge 19 is loaded, the CPU 1 controls the data disk reading sensor drive circuit 12 to cause the data disk reading sensor 20 to read the barcode information of the data disk 19d. When the cartridge 19 is loaded, the CPU 1
A frame is set at the reading position of the line sensor 18 and a standby process is performed.

The CPU 1 controls the light source driving circuit 4, the motor driving circuits 5 and 6, the line sensor driving circuit 9, and the magnetic signal processing circuit 10 to read an image on the roll film 23 and the like. The CPU 1 performs perforations 32, 35, and 36 based on the output of the line sensor 18 (see FIG. 2).
And the like. The CPU 1 controls the magnetic signal processing circuit 10, the signal processing circuit 8, and the A / D converter 7 to take in the read magnetic information and image data, and
To be stored. Further, the CPU 1 receives various commands from the host computer 50 via the IF circuit 3.

The programs set in the memory 2 are shown in the flowcharts of FIGS. 4 to 6 will be described later in detail. The IF circuit 3 is a SCSI (Small Computer System Interface) in the present embodiment. The IF circuit 3 outputs line data (image data) stored in the memory 2 to the host computer 50.
Further, the IF circuit 3 provides the CPU 1 with various commands such as frame designation and the like, monitor screen information, and the like sent from the host computer 50.

The host computer 50 displays the image data received from the IF circuit 3 on a monitor screen. Further, the host computer 5 gives a command input from a keyboard or a mouse to the IF circuit 3. Here, FIG.
Indicates a retracting mechanism of the magnetic head 24. In the present embodiment, as shown in FIG. 3, the magnetic head 24 is supported by a holding member 41 fixed to the rotation shaft of the retraction motor 40. The CPU 1 controls the magnetic head retraction motor drive circuit 11 to rotate the retraction motor 40 forward and reverse. Thus, the magnetic head 24 can contact / separate (retreat) from the magnetic reading surface of the roll film 23 according to the rotation direction of the rotation shaft.

In the present embodiment, when the cartridge 19 is loaded, the CPU 1 controls the data disk reading sensor drive circuit 12 to read the contents of the bar code information of the data disk 19 d read by the data disk reading sensor 20. The attribute of the loaded cartridge (whether it is for a film with a lens or not) is determined, and the result of the determination is reflected in the control of the magnetic head retracting motor drive circuit 11.

The correspondence between the above configuration and the claims is as follows. The line sensor 18 mainly corresponds to the image reading unit. The magnetic head 24 mainly corresponds to the magnetic information reading means. The evacuation motor 40 and the entire holding member 41 correspond to the moving means. Control means, first
And the second determining means and the writing control means mainly include a CP.
U1 corresponds. The frame magnetic storage area 37 corresponds to the first magnetic storage area. The reader magnetic storage areas 31 and 33 correspond to the second magnetic storage area.

Next, FIGS. 4 to 6 are flowcharts showing the control procedure of the CPU 1. Hereinafter, the operation of the present embodiment will be described with reference to FIGS. In S1 of FIG. 4, the host computer 50 outputs a read command (pre-scan command) to the image input device in response to the user performing an input operation of the start key of the input device 52. CPU1
When a read command is input, it is determined whether or not the read command includes a magnetic information read command. If the result of the determination is that a magnetic information reading instruction is included, the CPU 1 makes an affirmative (YES) determination, sets the magnetic reading instruction flag to "1" in S2, and proceeds to S3. On the other hand, if the result of determination in S1 is that no magnetic information reading command is included,
1 sets a negative (NO) determination, sets the magnetic read command flag to "0" in S4, and proceeds to S3.

In S3, the CPU 1 controls the data disk reading sensor drive circuit 12 to cause the data disk reading sensor 20 to read the bar code information of the data disk 19d on the side of the cartridge 19. The barcode information includes information as to whether the cartridge 19 is for a film with a lens. So, CP
U1 determines in the next S5 whether or not the cartridge 19 is for a film with a lens from the film type included in the barcode information. When the determination result is affirmative (YES), the CPU 1 shifts to the processing of S6 to S34, and when the determination result is negative (NO), shifts to the processing of S37 to S40 and S27 to 34.

In S6 to S34, processing is performed for a normal cartridge not for a film with a lens. On the other hand, in S37 to S40 and S27 to S34,
The processing for the cartridge for the lens-equipped film is performed. First, the processing of S6 to S34 will be described, and then the processing of S37 to S40 will be described. In S6, the CPU
1 starts film feeding by driving the DC motor 22 in response to a pre-scan command from the host computer 50. The roll film 23 is fed out from the cartridge 19 to the transport path. The CPU 1 controls the magnetic head withdrawal motor drive circuit 11 to rotate and drive the magnetic head withdrawal motor 40 so that the magnetic head 24 is in contact with the film surface so that the reader unit magnetic storage area 33 can be read.

Then, the CPU 1 waits for detection of the reader magnetic storage area 33 in the next S7. This is performed by detecting the perforations 32 and 35 of the reader unit.
When the detection of the reader unit magnetic storage area 33 is performed, the CPU
1 makes a positive (YES) determination in S7, and proceeds to S8. In S8, the CPU 1 controls the magnetic signal processing circuit 10 to drive the magnetic head 24, and the reader unit magnetic storage area 3
3 to read magnetic information. When there is magnetic information written by the camera in the frame magnetic storage area 37 as described later, this fact is written in the reader magnetic storage area 33. Therefore, in the next S9, the CPU 1
Determines and confirms whether or not the read magnetic information has been written with write presence / absence information.

If the writing presence / absence information is not written, the film is considered to be read for the first time.
Makes a negative (NO) determination in S9 and proceeds to S12 in FIG. In S12, the CPU 1 continues the film feeding by the driving of the DC motor 22, controls the magnetic signal processing circuit 10 to drive the magnetic head 24, and stores the magnetic information in the magnetic storage area 37 of several frames after the first frame. To read.

Nothing is written in the frame magnetic storage area 37 of each frame at the time of film purchase. If so, it is likely that the camera wrote it at the time of shooting. On the other hand, if the camera has a function of selecting whether or not to write magnetic information, it is also assumed that there is no writing in the first frame. Therefore, in the present embodiment, several frames are examined. However, actually, it may be sufficient to examine whether or not there is a write in only the first frame.

In S13, the CPU 1 waits until reading of the magnetic information from the frame magnetic storage area 37 of a predetermined number of frames after the first frame is completed. CPU1
When reading of a predetermined number of frames is completed, S13
Then, the determination of affirmative (YES) is made and the process proceeds to S14. In S14, the CPU 1 determines whether or not there is magnetic information written by the camera in the frame magnetic storage area 37 of several frames read.

If there is camera write information, CPU 1
A positive (YES) determination is made in S14, and S15, S16
Proceed to processing. In S15, the CPU 1 sets “1” to the write information flag. In S16, the CPU 1 waits for the reading of the magnetic information of all frames to be completed. On the other hand, if there is no camera write information, the CPU 1 proceeds to S14
Then, a negative (NO) determination is made, and the process proceeds to S26 via the processes of S20 to S25. The processing of S21 to S25 will be described later.

If it is determined in S9 that the writing presence / absence information has been written, the CPU 1 makes an affirmative (YES) determination and performs the processing of S10 and S11. In S10, the CPU
1 retrieves the writing presence / absence information. In S11, the CP
U1 determines whether or not there is writing of no-write information as its contents. Since the film is considered to be the second and subsequent readings, the contents of the writing presence / absence information are checked.

If there is no writing of the no-write information, the CPU 1 makes a negative (NO) determination in S11, and proceeds to S1 in FIG.
Go to 7. In S17, since the camera is a film on which the camera is writing magnetic information, the CPU 1
4 to read normal magnetic information sequentially from the first frame, and then proceed to S16. Then, in S16, C
When detecting the end of the reading of the magnetic information of all the frames, the PU 1 makes an affirmative (YES) determination, and proceeds to S26 via S18 and S19. In S18, the CPU 1 stops driving the DC motor 22 and stops feeding (winding) the roll film 23 to the winding spool 21. S1
9, the CPU 1 controls the magnetic head retracting motor drive circuit 1
1 to rotate the retreat motor 40 in the reverse direction. As a result, the magnetic head 24 moves in a direction away from the film surface and can be retracted from the film surface.

On the other hand, if it is determined in step S11 that no-write information has been written, an affirmative (YES) determination is made, and the process advances to step S26 via the processes in steps S20 to S25 in FIG. In S20, the CPU 1 sets “0” to the write information flag. In S21, the CPU 1 determines whether or not “1” is set in the magnetic read command flag. CPU1
When the magnetic read command flag is set to "1", the CPU makes an affirmative (YES) determination in S21, performs the processing in S22, and proceeds to S23. In S22, the CPU 1
The host computer 50 is notified that there is no magnetic writing. In response to this, the host computer 50 can display a message "No magnetic information" when displaying, for example, a frame image.

If the determination in S21 is negative (NO), the CPU 1 passes S22 and proceeds directly to S23. In S23, the CPU 1 ends the reading drive of the magnetic head 24 and performs the retraction drive in the same procedure as in S19. As a result, the magnetic head 24 moves in a direction away from the film surface and can be retracted from the film surface. Then, in the next S24, the CPU 1 drives the DC motor 22 with the magnetic head 24 retracted to feed the film, and waits until the feeding of all the frames is completed. C
When the last frame reaches the image reading position, the PU 1 determines that the feeding of all frames is completed, and makes an affirmative determination in S24 (YES).
Is determined, the film feeding is stopped in the next S25, and
Proceed to 26.

In S26, the CPU 1 controls the motor drive circuit 5 to rotate the DC motor 22 in the reverse direction to start rewinding the roll film 23, move the last frame to the image reading position, and proceed to S27 and S28. A thumbnail reading process for roughly reading a frame image is executed. That is, S
In S27 and S28, the CPU 1 controls the motor drive circuits 5, 6
To drive the DC motor 22 and the step motor 27 to execute image reading from the last frame to the first frame.

The CPU 1 sends the read thumbnail image data to the host computer 50 together with the magnetic information. At this time, since the reading of the first frame of the roll film 23 has been completed, the reader unit is in the vicinity of the image reading position. In the next S29, the CPU 1 executes the above S15, S2
At 0, it is determined whether or not the write information flag has been operated. If the determination in S29 is affirmative (YES), the CP
U1 proceeds to S33 and S34 through the processing of S30 to S32, and ends this procedure.

In S30, the CPU 1 sets the DC motor 22
Is executed, and the detection of the magnetic memory area 33 of the reader section is awaited. If it can be detected, C
PU1 makes an affirmative (YES) determination in S30, and S3
Proceed to 1. In S31, the CPU 1 controls the magnetic head retraction motor drive circuit 11 to
Then, the magnetic head 24 is brought into contact with the film surface, and the magnetic signal processing circuit 10 is controlled to cause the magnetic head 23 to write the contents of the write information flag, that is, the write presence / absence information, in the reader magnetic storage area 33. As a result, in the second and subsequent readings, if the presence or absence of the writing presence / absence information is detected from the reader magnetic storage area 33, the reading of the original magnetic information can be directly executed. In S32, the CPU 1 terminates the read / write drive of the magnetic head and performs the retract drive in the same procedure as in S19.

On the other hand, if the determination in S29 is negative (NO), that is, if the processing route is S11, S17, S16, the CPU 1 passes S30-S32 and directly goes to S3.
3. Proceed to S34 and end this procedure. In S33, since the leader portion of the roll film 23 remains in the transport path, the CPU 1 drives the DC motor 22 to execute a predetermined amount of rewinding, and when the rewinding of the predetermined amount is completed, affirmative (YES). Is determined, and the process proceeds to S34. In S34,
Since the entire roll film 23 has been wound into the cartridge 19, the CPU 1 stops driving the DC motor 22 and ends the rewinding process of the roll film 23.

Next, if the determination in S5 is negative (N
In the case of O), that is, when the loaded cartridge 19 is for a film with a lens, the processing of S37 to S40 is performed instead of the processing of S6 to S26 described above, and thereafter, the processing of S27 and thereafter described above is performed. Processing is performed. Hereinafter, processing of different parts (S37 to S40) will be described.
In S37, the CPU 1 controls the magnetic head withdrawal motor drive circuit 11 to cause the withdrawal motor 40 to hold the magnetic head 24 in the withdrawn state. Then, in the next S38,
The CPU 1 determines whether or not a read command (pre-scan command) input from the host computer 50 includes a magnetic information read command from the contents of the magnetic read command flag.

The CPU 1 determines that the determination in S38 is affirmative (YE
In the case of S), the process proceeds to S39. In S39, the CPU 1
Notifies the host computer 50 that there is no magnetic information, and proceeds to S40. Upon receiving this notification, the host computer 50 can display on the display device 51 that there is no magnetic information. On the other hand, the CPU 1
If the determination of No. 8 is negative (NO), the process skips S39 and proceeds directly to S40.

In S40, the CPU 1 sets the magnetic head 24
The DC motor 22 is driven in the retracted state, the feeding of the roll film 23 is started, the first frame is moved to the image reading position, and the thumbnail reading processing of S27 and S28 is performed. In other words, when it is not necessary to read magnetic information,
Since the film can be fed by retracting the magnetic head 24,
Problems such as scratching the film can be avoided.

In this embodiment, when the image is read without reading the magnetic information of each frame after the magnetic information is read by the reader unit, the magnetic information is written in several frames from the first frame. Investigate whether or not and then read the image without reading the magnetic information of each frame,
Furthermore, the case where the roll film is fed in the forward direction and then reversed and the image reading is performed in order from the last frame to the first frame has been described, but this is based on the viewpoint of ensuring the continuity of control. There is no essential matter.

The position of the magnetic head 24 may be set at least one frame before the image reading position, and if there is no magnetic information in the first frame, the image may be read directly. Also in this case, continuity of control can be ensured.
There is also an advantage that time for empty feeding to the last frame can be saved.
Further, a display lamp may be provided in the image input device, and the display lamp may be turned on when there is no writing of magnetic information.

Further, in the above embodiment, the control program of the CPU 1 is stored in the memory 2 which is a storage medium. The central processing unit of the host computer 50 may be used instead of the CPU 1. Further, a hard disk drive and a memory in the host computer 50 may be used instead of the memory 2. In that case, the central processing unit of the host computer 50 can execute the program by reading the program stored in the hard disk into the memory.
At this time, the program stored in the hard disk in the host computer 50 is
It is stored in a storage medium 53 such as a CD-ROM so that it can be set up.

[0071]

As described above, according to the first aspect of the present invention, the magnetic information reading means and the magnetic storage area forming surface of the long film can be relatively contacted or separated. Therefore, when it is not necessary to read the magnetic information, the magnetic information reading means can be retracted from the magnetic storage area forming surface, that is, the film surface.

According to a second aspect of the present invention, in the image input device of the first aspect, the bar code information stored on the data disk provided in the cartridge for storing the long film includes a film type. And if it is determined that the reading of the magnetic information is unnecessary based on the barcode information, the magnetic information reading means can be kept in a retracted state in advance.

According to a third aspect of the present invention, in the image input device according to the second aspect, the cartridge includes a film type included in the barcode information stored in the data disk of the cartridge. Note that if the cartridge to be read is mounted on a film with a lens based on the barcode information, the magnetic information reading means is evacuated from the beginning. Can be kept in the state.

According to a fourth aspect of the present invention, in the image input apparatus according to the first aspect, a camera capable of loading a long film is not capable of writing photographing information in the first magnetic storage area. Focusing on things,
It is determined whether or not there is write information in the magnetic information read from the first magnetic storage area of at least one frame of the long film, and if there is no write information, the magnetic information reading means and the magnetic storage area forming surface Are kept relatively separated from each other.

Therefore, when the reading of the magnetic information is started, but it is determined that there is no write information in the magnetic information read from the first magnetic storage area of at least one frame of the long film, the reading of the magnetic information is promptly performed. The means can be kept in the retracted state. The invention according to claim 5 is the invention according to claim 4.
Wherein the magnetic information read from the first magnetic storage area of at least one frame of the long film has no write information, the first magnetic storage area for each frame of the long film. Causes the no-write information to be written to a different second magnetic storage area. Therefore, when the reading of the cartridge is performed for the second time or later, it is not necessary to refer to the magnetic information in the second magnetic storage area to determine again whether or not writing has been performed.

According to a sixth aspect of the present invention, in the image input device of the fourth aspect, when there is no write information in the magnetic information read from the second magnetic storage area, there is no write information immediately. Therefore, when the reading of the cartridge is performed for the second time or later, the magnetic information reading unit can be promptly held in the retracted state. According to a seventh aspect of the present invention, in the image input device according to the fourth aspect, even when a command for reading magnetic information is received from an external device via the input unit, the image input device can read the magnetic information. If it is determined that the magnetic information reading unit is not necessary, the magnetic information reading unit can be kept in a state in which the magnetic information reading unit is retracted ignoring the command from the external device.

According to an eighth aspect of the present invention, in the image input device of the fourth aspect, the external device can receive the non-writing information and notify the user that there is no magnetic information. . The invention according to claim 9 is the invention according to claim 4.
In the image input device described in (1), when a long film of a loaded cartridge is a device in which magnetic information is not written, the long film can be easily visually recognized from the outside.

In short, according to the present invention, since the magnetic information reading means can be retracted from the film surface, unnecessary scratches on the film can be prevented, and generation of shavings on the film can be suppressed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an image input device according to an embodiment.

FIG. 2 is an external view of a long film (roll film).

FIG. 3 is a configuration diagram of a retracting mechanism of a magnetic head.

FIG. 4 is an operation flowchart of the embodiment.

FIG. 5 is an operation flowchart of the embodiment.

FIG. 6 is an operation flowchart of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central processing unit (CPU) 2 Memory 3 Interface circuit (IF circuit) 4 Light source drive circuit 5, 6 Motor drive circuit 7 A / D converter 8 Signal processing circuit 9 Line sensor drive circuit 10 Magnetic signal processing circuit 11 Magnetic head retraction Motor driving circuit 12 Data disk reading sensor driving circuit 13 Light source 14 Toric mirror 15 Reflecting mirror 16 45 degree reflecting mirror 17 Projection lens 18 Line sensor 19 Cartridge 19d Data disk 20 Data disk reading sensor 21 Take-up spool 22 DC motor 23 Roll film 24 Magnetic head 25 Tension roller 26 Scan roller 27 Stepping motor 40 Magnetic head retraction motor 41 Holding member 50 Host computer 51 Display device 52 Input device 53 Storage medium

Claims (9)

[Claims] An image reading means for reading an image in the image storage area of a long film having an image storage area and a first magnetic storage area for each frame and outputting an image signal; Magnetic information reading means for reading magnetic information and outputting a magnetic information signal; and moving means for relatively contacting or separating the magnetic information reading means and the first magnetic storage area forming surface of the long film. An image input device, characterized in that: 2. The image input device according to claim 1, wherein bar code information stored in a data disk provided in a cartridge storing the long film is detected, and a bar code information signal is output. Bar code detecting means; determining means for determining whether or not the magnetic information reading means and the long film are relatively separated based on the bar code information signal; and Based on determining that the means and the long film are relatively spaced,
An image input apparatus, further comprising a control means for causing the moving means to hold the magnetic information reading means and the long film in a relatively separated state. 3. The image input device according to claim 2, wherein the determination unit includes information that the cartridge is mounted on a film with a lens in the barcode information. An image input apparatus, which determines that the magnetic information reading unit and the long film are relatively separated based on the information. 4. The image input device according to claim 1, wherein said magnetic information reading means has write information in magnetic information read from a first magnetic storage area of at least one frame of said long film. A first judging means for judging whether the magnetic information reading means and the first magnetic storage area are formed based on the first judging means judging that there is no write information. An image input device comprising: control means for holding a surface relatively separated from the surface. 5. The image input device according to claim 4, wherein said magnetic information writing means for writing magnetic information into said first magnetic storage area, and said first determining means determines that said write information does not exist. Writing control means for writing the no-write information to the magnetic information writing means in a second magnetic storage area different from the first magnetic storage area for each frame of the long film based on Image input device. 6. The image input device according to claim 4, wherein: a read control unit that causes the magnetic information reading unit to read magnetic information in a second magnetic storage area of the long film; Second determining means for determining whether or not there is no-write information in the magnetic information read by the control, wherein the first determining means determines that the second determining means has no-write information. An image input device that determines that the writing information does not exist based on the information. 7. The image input device according to claim 4, further comprising: an input unit for receiving a command from an external device, wherein the control unit is configured to issue a command for reading magnetic information from the external device via the input unit. When the first judging means judges that the write information does not exist even after receiving the information, the state where the magnetic information reading means and the magnetic storage area forming surface are relatively separated from each other is maintained. Image input device. 8. The image input device according to claim 4, further comprising: an output unit configured to transmit information to an external device, wherein the first determination unit determines that there is no write information. The image input device, wherein the control unit outputs the no-write information to the external device via the output unit. 9. The image input apparatus according to claim 4, further comprising a display unit for displaying no write information based on the first determination unit determining that there is no write information. Characteristic image input device.