JP6315026B2 - Control device and program - Google Patents

Description

The present invention relates to a control device and a program.

  In general, as an image reading apparatus that reads information written on a paper medium (for example, a notebook or a book), the paper medium is scanned as image data by scanning with a scanner, or is photographed by photographing with a digital camera. I read it as an image. Conventionally, as a technique for reading a paper medium with a digital camera, for example, in a notebook computer in which a first casing and a second casing are rotatably attached (openable and closable) via a hinge portion, When a document is placed on the key top of one housing and the second housing provided with the imaging unit is held for a predetermined time at a position where the entire key top can be photographed, the imaging unit is operated to photograph the document. A technique for starting is proposed (see Patent Document 1).

JP 2011-76267 A

  However, in the technique of Patent Document 1 described above, in order to photograph the material placed on the key top, it is necessary to strictly adjust the first casing and the second casing to a predetermined hinge angle. is there. Further, depending on the angle between the first casing and the second casing, it is difficult for outside light to enter the back of the second casing, that is, the vicinity of the hinge portion, and the entire captured image becomes dark. In addition, it was necessary to shoot with the notebook computer facing the light source or close to the light source.

An object of the present invention is to allow bright and vivid pictures of shooting target according to the adjustment angle of the second housing to the first housing.

Claim 1 is a control device in which a second housing is connected to a first housing so that the angle of the second housing can be adjusted, and the second housing faces the first housing where an object to be imaged is arranged. An imaging unit that captures the subject to be photographed, and a light-emitting body that can control brightness intensity , and when photographing the subject to be photographed by the imaging unit, the first casing Detecting means for detecting the angle of the second casing adjusted with respect to the angle, and whether or not the angle detected by the detecting means is within a predetermined angle range in which the imaging unit can shoot the imaging target discriminating means for discriminating, wherein when it is determined to be within the predetermined angle range determination means, controlled so that the brightness is increased in the light emitter when the detected angle by said detection means is smaller while, perform imaging by the imaging section in accordance with the intensity control of the brightness And control means for controlling, characterized by comprising a.

An object of the present invention can be bright and to clearly photograph the imaging object in accordance with the adjustment angle of the second housing to the first housing.

The block diagram which showed the basic component of the tablet terminal device with a camera applied as information processing apparatus. The external appearance perspective view in the state where the tablet terminal device with a camera 11 and the paper medium 12 are mounted on a binder 13. The figure which showed the relationship between the imaging | photography field angle when the paper medium 12 was image | photographed with the imaging part 6 when closing the 1st housing | casing 13a and the 2nd housing | casing 13b which comprise the binder 13, and the paper medium 12. FIG. The figure which showed the arrangement | positioning state of several backlight 5c. The figure for demonstrating a mode that the brightness | luminance of the backlight 5c is controlled according to the opening / closing angle when the angle of the 1st housing | casing 13a and the 2nd housing | casing 13b is detected by the opening / closing angle sensor 9. FIG. . The figure for demonstrating the brightness | luminance table 3c. The flowchart which showed the operation | movement outline | summary of the characteristic part of this embodiment among the whole operation | movement of the tablet terminal device. It is a figure for demonstrating the modification of this embodiment, and a figure for demonstrating the case where the angle of the 1st housing | casing 13a and the 2nd housing | casing 13b is detected by analyzing a picked-up image.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This embodiment exemplifies a case where the present invention is applied to a tablet terminal device having an imaging function (digital camera) as an information processing device, and FIG. 1 shows basic components of the tablet terminal device with a camera. It is a block diagram.
The entire case of the tablet terminal device is, for example, an A5 size portable information terminal device. In addition to basic functions such as a touch input function and a wireless communication function, the tablet terminal device will be described in detail later. It has an image reading function for optically reading information (characters, charts, etc.) described on a paper medium by photographing a paper medium (for example, a notebook, a report paper, a book, etc.) placed close to each other. . In the present embodiment, the paper medium indicates a medium in which information to be photographed is described, and does not specify that the material is paper. That is, in the present embodiment, the paper medium means a subject on which information is described. In the present embodiment, the paper medium includes electronic paper that can display information electronically.

  The control unit 1 operates by supplying power from the power source unit (secondary battery) 2 and controls the overall operation of the tablet terminal device according to various programs in the storage unit 3. Are provided with a CPU (Central Processing Unit) and a memory (not shown). The storage unit 3 includes, for example, a ROM, a flash memory, and the like, and a program memory 3a that stores a program for realizing the present embodiment and various applications according to the operation procedure illustrated in FIG. A work memory 3b that temporarily stores various kinds of information (for example, flags) necessary for the operation of the tablet terminal device, a brightness table 3c described later, and the like are provided. The storage unit 3 may include a removable portable memory (recording medium) such as an SD card or an IC card, and is connected to a network via a communication function (not shown). The state may include a storage area on a predetermined server device side.

  Although the operation unit 4 is not illustrated as a push button type key, the operation unit 4 includes a power key for turning on / off the power, and the control unit 1 performs an input operation output from the operation unit 4 corresponding to the operation key. Perform processing according to the signal. The touch display unit 5 has a configuration in which a touch panel 5b is stacked on a display panel 5a. The display panel 5a is a high-definition liquid crystal display having screens having different aspect ratios (for example, horizontal 4: vertical 3). A plurality of backlights 5c for illumination are provided on the back side of the display panel 5a. The plurality of backlights 5c are configured by, for example, three-color (red, green, blue) LEDs (light emitting diodes) or white LEDs, and the luminance is controlled by the luminance control unit 5d. The touch panel 5b constitutes a touch screen that detects a position touched by a photographer's finger and inputs coordinate data, and employs, for example, a capacitance method or a resistance film method. Other methods may be used.

  Although the imaging unit 6 constitutes an image reading function and is not shown in the drawing, the imaging unit 6 is a digital that can photograph a subject with high definition by forming a subject image from an optical lens on an imaging element (CCD, CMOS, etc.). The camera unit includes a photographing lens, an image sensor, various sensors, an analog processing unit, and a digital processing unit. The imaging unit 6 includes an autofocus function and the like, and can perform continuous shooting (high-speed shooting) at a frame rate of 15 frames per second (15 fps), for example, when the image reading function is operated. A wireless LAN (Local Area Network) communication unit 7 is a wireless communication module capable of high-speed and large-capacity communication, and can be connected to the Internet via a nearby wireless LAN router (not shown).

  The peripheral illuminance sensor 8 and the open / close angle sensor 9 will be described in detail later. The peripheral illuminance sensor 8 is an illuminance sensor for detecting the brightness of the periphery of the display panel 5a. The luminance of the backlight 5c is controlled (dimmed) according to the ambient illuminance detected by the illuminance sensor 8. The opening / closing angle sensor 9 is a sensor that detects an opening / closing angle of a case that can be opened / closed, which will be described later, and the control unit 1 controls the luminance of the backlight 5 c according to the opening / closing angle detected by the opening / closing angle sensor 9. I am doing so.

FIG. 2 is an external perspective view of the tablet terminal device with camera 11 and the paper medium 12 attached to the binder 13.
A tablet terminal device 11 and a paper medium (for example, notebook, report paper, book) 12 are attached to a binder 13. The binder 13 has a configuration in which a first housing 13a and a second housing 13b are attached so as to be openable and closable via a hinge portion 13c. In the illustrated example, the first housing 13 is on the right side. The body 13a is disposed, and the second housing 13b is disposed on the left side. Note that the first housing 13a and the second housing 13b may have a reverse relationship to that shown in the figure. The first casing 13a and the second casing 13b are thick flat rectangular (same shape and same size) paper members (thick paper), and the vertically long first casing 13a and second casing 13b are left and right. In the state arrange | positioned, it is connected via the hinge part 13c so that opening and closing is possible. That is, the first housing 13a and the second housing 13b are configured to be openable and closable with the hinge portion 13c as a rotation axis.

  Then, the first housing 13a and the second housing 13b are in a state in which the second housing 13b is overlapped on the first housing 13a (completely closed) from a state where the first housing 13a is opened 180 ° as shown in the figure. The user can use the tablet terminal device 11 in a state where the binder 13 is opened 180 degrees, or write characters, charts and the like on the paper medium 12. Further, when the tablet terminal device 11 and the paper medium 12 are not used, the first housing 13a and the second housing 13b are closed so that the binder 13 is completely closed.

  The tablet terminal device 11 is a thin rectangular parallelepiped as a whole and is mounted on the second housing 13b constituting the binder 13, and the tablet terminal device 11 is also vertically long with respect to the vertically long second housing 13b. It is arranged in the direction. A paper medium 12 is disposed on the other casing (first casing) 13 a constituting the binder 13. The paper medium 12 may be a sheet of paper, or a booklet (bookbinding state) like a book. Note that the arrangement relationship between the tablet terminal device 11 and the paper medium 12 on the binder 13 may be opposite to that described above. In addition, the tablet terminal device 11 and the paper medium 12 are detachably attached to the binder 13, but the attachment method is arbitrary, for example, using a fastener or a hook.

  As described above, in the state where the tablet terminal device 11 is mounted on the second casing 13 b of the binder 13, the touch display unit 5 and the imaging unit 6 of the tablet terminal device 11 are located on the front side of the tablet terminal device 11. Further, the image pickup unit 6 and the ambient illuminance sensor 8 are arranged so as to be located at one end central portion (in the illustrated example, the front left end central portion) on the surface side. An opening / closing angle sensor 9 is disposed on the hinge portion 13c. The opening / closing angle sensor 9 is provided in a hinge portion 13c that connects the first casing 13a and the second casing 13b so as to be openable and closable, and opens and closes the first casing 13a and the second casing 13b. The angle is detected by, for example, a rotary encoder that outputs a two-phase pulse each time a shaft (not shown) of the hinge portion 13c rotates by a certain amount, or is opened and closed using a Hall element or a magnetoresistive element. It is comprised by the magnetic sensor which performs a detection.

FIG. 3 shows the relationship between the shooting angle of view and the paper medium 12 when the paper medium 12 is photographed by the imaging unit 6 when the first casing 13a and the second casing 13b constituting the binder 13 are closed. FIG.
The controller 1 operates to close the binder 13 (opening / closing angle sensor 9) when the opening / closing angle between the first housing 13a and the second housing 13b is in the range of 125 ° to 30 ° (shootable range), for example. The autofocus function of the imaging unit 6 is linked (followed) in accordance with the open / close angle detected by (1) to focus on the paper medium 12.

FIG. 4 is a diagram showing an arrangement state of a plurality of backlights 5c.
The plurality of backlights 5c are arranged immediately below the back side of the display panel 5a, and are arranged in four rows along the longitudinal direction (lateral direction) of the display panel 5a having different aspect ratios. That is, two rows of inner backlights 5c arranged at positions close to the hinge portion 13c connecting the first housing 13a and the second housing 13b, and arranged at a position away from the hinge portion 13c. The four rows of outer backlights 5c are spread over the entire back surface of the display panel 5a. The luminance control unit 5d controls the luminance of the plurality of backlights 5c according to the opening / closing angles detected by the opening / closing angle sensor 9, and at that time, the two rows of inner backlights 5c and outer backlights are controlled. These brightnesses are controlled separately in 5c.

FIG. 5 is a diagram for explaining a state in which the luminance of the backlight 5c is controlled in accordance with the opening / closing angle detected by the opening / closing angle sensor 9.
FIG. 5 (1) shows a case where the opening / closing angle between the first housing 13a and the second housing 13b is 70 °, and FIG. 5 (2) shows a case where the opening / closing angle is 30 °. Yes. In this case, the brightness control unit 5d controls the backlight 5c to have a higher brightness as the opening / closing angle becomes smaller. If the opening / closing angle is the same, the inner backlight 5c is more controlled. The brightness is controlled to be higher than that of the outer backlight 5c.

FIG. 6 is a diagram for explaining the luminance table 3c.
The luminance table 3c is a table that is referred to when the luminance of the backlight 5c is controlled according to the opening / closing angle detected by the opening / closing angle sensor 9 and the change in ambient light detected by the ambient illuminance sensor 8. 3c-1 and illuminance luminance table 3c-2. The controller 1 refers to the angle luminance table 3c-1 in accordance with the opening / closing angle detected by the opening / closing angle sensor 9, and then refers to the illuminance luminance table 3c-2 in accordance with the peripheral illuminance detected by the peripheral illuminance sensor 8. Like to do.

  The angle luminance table 3c-1 is configured to store the luminance values of the inner backlight 5c and the outer backlight 5c in association with the opening / closing angle detected by the opening / closing angle sensor 9, and includes “opening / closing angle” and “inner backlight luminance”. And “outside backlight luminance”. In the illustrated example, “opening / closing angles” of “30 ° ˜”, “35 ° ˜”,..., “120 ° ˜”, “˜125 ° ˜” are ranges that can be photographed (for example, 125 ° -30 °). The range is divided in 5 ° increments, and the luminance values are stored in “inner backlight luminance” and “outer backlight luminance” corresponding to the increments of 5 °.

  That is, “inner backlight luminance” stores a luminance value indicating how much the inner backlight 5c is lit in association with a change in opening / closing angle in increments of 5 °. ”Stores a luminance value indicating how much the outer backlight 5c is lit in association with a change in the opening / closing angle in increments of 5 °. In this case, “inner backlight luminance” and “outer backlight luminance” are set such that the smaller the opening / closing angle is, the larger the value is. If the opening / closing angle is the same, the inner backlight 5c is set. Is set to have a higher luminance than the outer backlight 5c.

  The illuminance / luminance table 3c-2 is configured to store the luminance increase / decrease rates of the inner backlight 5c and the outer backlight 5c in accordance with the change in ambient light detected by the ambient illuminance sensor 8. In the example shown in the figure, the “peripheral illuminance” includes “high brightness”, “medium brightness”, and “brightness” with standard brightness (predetermined threshold) as a reference. “Small” is stored. The “brightness increase / decrease rate” stores the increase / decrease rate of the “inner backlight luminance” and “outer backlight luminance” obtained by referring to the angle luminance table 3c-1 according to the ambient illuminance. In the “increase / decrease rate”, “30% decrease”, “no increase / decrease”, and “30% increase” are stored as values for increasing / decreasing the standard brightness.

  Next, the operation concept of the tablet terminal device 11 in the present embodiment will be described with reference to the flowchart shown in FIG. Here, each function described in this flowchart is stored in the form of a readable program code, and operations according to the program code are sequentially executed. Further, it is possible to sequentially execute the operation according to the above-described program code transmitted via a transmission medium such as a network. In other words, in addition to the recording medium, an operation unique to the present embodiment can be executed using a program / data supplied externally via a transmission medium.

FIG. 7 is a flowchart showing an outline of the operation of the characteristic part of the present embodiment in the entire operation of the tablet terminal device 11, and the execution is started in response to power-on.
First, the control unit 1 performs an initialization process for clearing a memory or the like in response to a power-on operation (power-on operation), sets shooting conditions such as exposure in the imaging unit 6, and starts shooting. In order to enhance the illumination effect of the backlight 5c, a white painted image is displayed on the display panel 5a of the touch display unit 5 (step S1).

  Then, the control unit 1 checks whether or not the power-off operation has been performed (step S2). If the power-off operation has not been performed (NO in step S2), the first housing 13a and the second housing 13a are opened from the opening / closing angle sensor 9. An opening / closing angle with respect to the housing 13b is acquired (step S3), and it is checked whether or not the opening / closing angle is within a photographing possible range (for example, a range of 125 ° to 30 °) (step S4). Note that the shootable range is not limited to the range of 125 ° to 30 °, but may be a range of 110 ° to 15 °. The range to be set depends on the size of the paper medium 12 and the character size. In consideration of the above, it may be arbitrarily set by a user operation in advance.

  Now, when the open / close angle is out of the range that can be photographed (NO in step S4), for example, if the open / close angle is 180 °, the tablet terminal device 11 can be used with the binder 13 opened 180 °, This is a case where characters, diagrams, etc. are written on the paper medium 12, and when the opening / closing angle is 0 °, the binder 13 is completely closed. It returns to step S2 and it is investigated whether power-off operation was performed. Further, if the open / close angle is within a range where the image can be taken (for example, a range of 125 ° to 30 °) (YES in step S4), the angle brightness table 3c-1 is referred to according to the open / close angle, and 5 The luminance values of “inner backlight luminance” and “outer backlight luminance” associated with the opening / closing angle in steps are read (step S5). For example, if the opening / closing angle is 75 ° to 70 °, the luminance value is read from the corresponding “inner backlight luminance” and “outer backlight luminance”.

  Then, the illuminance around the display panel 5a is obtained from the peripheral illuminance sensor 8 (step S6), and the illuminance luminance table 3c-2 is referred to according to the peripheral illuminance, thereby “high brightness” and “medium brightness”. “Luminance increase / decrease value” corresponding to “low brightness” is read (step S7). As a result, the process of increasing or decreasing the luminance values of “inner backlight luminance” and “outer backlight luminance” read from the angle luminance table 3c-1 based on the “luminance increase / decrease value” read from the illuminance luminance table 3c-2. Perform (step S8). In this case, if the ambient illuminance is “low brightness”, the “inner backlight luminance” and “outer backlight luminance” corresponding to the angle are increased by “30%”, and if “high brightness”, the angle is supported. “Inside backlight luminance” and “outside backlight luminance” are reduced by “30%”.

  The luminance value of “inner backlight luminance” calculated (increased or decreased) is given to the luminance control unit 5d to light the inner backlight 5c according to the luminance (step S9), and “outer backlight luminance” is set to The brightness control unit 5d is given to light the outer backlight 5c according to the brightness (step S10). In this state, a captured image for one frame imaged by the imaging unit 6 is acquired (step S11), and this acquired image is temporarily stored in the storage unit 3 as a storage candidate (step S12).

  Then, it is checked whether the opening / closing angle detected by the opening / closing angle sensor 9 is less than “30 °” exceeding the lower limit value of the shootable range (step S13), and if not exceeding the lower limit value of the shootable range (NO in step S13). ), The process returns to step S2. Hereinafter, as a result of repeating the above-described operation, the brightness of the backlight 5c increases as the binder 13 is closed (the opening / closing angle becomes narrower), and if the opening / closing angle is the same, the inner backlight 5c is the outer backlight 5c. The brightness of the backlight 5c is increased or decreased according to the ambient illuminance. Here, when the power-off operation is performed (YES in step S2) or when the lower limit value of the shootable range is exceeded (YES in step S13), the operation of the imaging unit 6 is stopped and the backlight 5c is turned off. (Step S14), and further a process of turning off the power (Step S15). Thereafter, the flow of FIG. Note that the user may appropriately select a desired image from each of the temporarily stored captured images, and record and save only the selected image.

  As described above, in the present embodiment, the tablet terminal device 11 takes a picture of the paper medium 12 to be read arranged in the first casing 13a by the imaging unit 6 provided in the second casing 13b. In addition, when the angle between the first casing 13a and the second casing 13b constituting the binder 13 is detected by the opening / closing angle sensor 9, the luminance of the light emitter is controlled according to the opening / closing angle. Therefore, even if no special operation is performed, the paper medium 12 can be brightened at any opening / closing angle by simply closing the first housing 13a and the second housing 13b, and overexposure and blackout It is possible to take a clear picture without any phenomenon such as, and it is possible to realize simple and reliable photography.

  The light emitter is a backlight 5c that illuminates the display panel 5a of the touch display unit 5 provided in the second housing 13b, and the control unit 1 performs backlighting according to the opening / closing angle detected by the opening / closing angle sensor 9. Since the brightness of the light 5c is controlled, it is possible to illuminate the paper medium 12 using an existing light emitter without providing a special light emitter, and to prevent an increase in the number of parts.

  Since the control unit 1 controls the luminance of the backlight 5c in a state in which the white painted image is displayed on the display panel 5a of the touch display unit 5, the control unit 1 controls the luminance of the backlight 5c by displaying black on the display panel 5a. The brightness is not partially attenuated, and the brightness control becomes easy.

  When the brightness of the backlight 5c is controlled according to the opening / closing angle detected by the opening / closing angle sensor 9, the brightness of the backlight 5c is controlled so that the brightness for illuminating the entire surface of the display panel 5a is partially different. Therefore, it is possible to illuminate the entire paper medium 12 evenly regardless of the opening / closing angle.

  The inner backlight 5c disposed near the hinge portion 13c that connects the first housing 13a and the second housing 13b so as to be openable and closable is arranged on the outer backlight disposed away from the hinge portion 13c. Since the luminance of the plurality of backlights 5c is controlled so as to be higher than that of the light 5c, even if the vicinity of the hinge portion 13c is shielded from light and becomes darker as the opening / closing angle becomes narrower, The illumination can be brightened, and the entire paper medium 12 can be illuminated well without unevenness.

  Since the plurality of backlights 5c are configured by LEDs, the color temperature can be adjusted if a three-color (red, green, blue) LED is used, and a sharp photographed image can be obtained by the adjustment. It becomes.

  Since the luminance of the light emitter is controlled by referring to the illuminance luminance table 3c-2 in accordance with the peripheral illuminance of the display panel 5a detected by the peripheral illuminance sensor 8, the surroundings such as indoor, outdoor, night, daytime, etc. Control suitable for the environment is possible, and the paper medium 12 can be illuminated with more appropriate brightness.

  When photographing the paper medium 12, the control unit 1 determines whether or not the opening / closing angle detected by the opening / closing angle sensor 9 is within a photographable range in which the paper medium 12 can be photographed. Since the luminance of the light emitter is controlled on the condition that it is within the range, the luminance control can be performed as necessary.

  In the embodiment described above, the opening / closing angle is detected by the opening / closing angle sensor 9, but the opening / closing angle may be detected by analyzing a photographed image as shown in FIG. FIG. 8 is a diagram for explaining a case where an opening / closing angle is detected by analyzing a captured image. The control unit 1 analyzes the captured image to recognize how the end of the first casing 13a is disconnected from the angle of view (the position of the end) and to detect the end of the end. The opening / closing angle between the first housing 13a and the second housing 13b is recognized based on whether the cutting method is a predetermined cutting method.

  In other words, the illustrated example is a diagram illustrating how the appearance of the outline of the first casing 13a changes according to the opening / closing angle between the first casing 13a and the second casing 13b. Here, the solid line indicating the outline of the first housing 13a indicates the case where the closing angle is approximately 70 °, the one-dot broken line indicates the case where the closing angle is approximately 90 °, and the two-dot broken line indicates the closing angle. Is about 125 °. As described above, when the end of the first casing 13a deviates from the angle of view of the imaging unit 6, the position where the end of the first casing 13a intersects the angle of view line. Changes according to the opening / closing angle. For example, in the longitudinal direction of the captured image, the position where the end of the first housing 13a intersects the angle of view is the center in the longitudinal direction in the order of the opening / closing angles of approximately 70 °, approximately 90 °, and approximately 125 °. Therefore, the opening / closing angle between the first housing 13a and the second housing 13b can be detected by specifying the position.

  In the embodiment described above, the luminance is controlled separately for the two rows of the inner backlight 5c and the outer backlight 5c, but the four rows of the backlights 5c are controlled according to the distance from the hinge portion 13c. The luminance may be controlled for each column. Further, the number of the backlights 5c is not limited to four rows, and the number thereof is arbitrary. Furthermore, in the above-described embodiment, the plurality of backlights 5c are arranged immediately below the back side of the display panel 5a. However, the plurality of backlights 5c are arranged on the edge of the display panel 5a. You may make it do. Furthermore, the light emitter is not limited to the backlight 5c that illuminates the touch display unit 5, but may be a dedicated illumination light.

  In the above-described embodiment, when the luminance of the backlight 5c is controlled according to the opening / closing angle detected by the opening / closing angle sensor 9, the angle luminance table 3c-1 in the luminance table 3c is referred to, and the ambient illuminance When the luminance of the backlight 5c is controlled in accordance with the ambient illuminance of the display panel 5a detected by the sensor 8, the illuminance luminance table 3c-2 in the luminance table 3c is referred to. It may be calculated and controlled based on the function formula of

  In the above-described embodiment, the case where the information processing apparatus is applied to the tablet terminal device 11 is shown. However, the present invention is not limited to this, and a personal computer with a camera function, a PDA (personal portable information communication device), a digital camera, music It may be a player or the like, and of course, the digital camera itself.

  Further, the “apparatus” and “unit” shown in each of the above-described embodiments may be separated into a plurality of cases by function, and are not limited to a single case. In addition, each step described in the above-described flowchart is not limited to time-series processing, and a plurality of steps may be processed in parallel or separately.

The embodiment of the present invention has been described above. However, the present invention is not limited to this, and includes the invention described in the claims and the equivalent scope thereof.
Hereinafter, the invention described in the claims of the present application will be appended.
(Appendix)
(Claim 1)
The invention described in claim 1
An information processing apparatus in which a first housing and a second housing are connected so as to be openable and closable,
Imaging means provided in the second casing opposite to the first casing in which a paper medium to be read is disposed;
An angle detection means for detecting an opening / closing angle between the first casing and the second casing when the paper medium is photographed by the imaging means;
Drive means for driving a light emitter provided in the second housing;
Brightness control means for controlling the brightness of the light emitter in accordance with the opening / closing angle detected by the angle detection means;
An information processing apparatus characterized by comprising:
(Claim 2)
The invention according to claim 2 is the information processing apparatus according to claim 1,
The light emitter is a backlight that illuminates a display unit provided in the second housing,
The brightness control means controls the brightness of the backlight according to the opening / closing angle detected by the angle detection means,
This is an information processing apparatus characterized by the above.
(Claim 3)
The invention according to claim 3 is the information processing apparatus according to claim 2,
Further comprising display control means for displaying a white filled image on the display unit,
The luminance control means controls the luminance of the backlight in a state where a white filled image is displayed on the display unit by the display control means.
This is an information processing apparatus characterized by the above.
(Claim 4)
The invention according to claim 4 is the information processing apparatus according to claim 2 or 3,
The brightness control means controls the brightness of the backlight according to the opening / closing angle detected by the angle detection means, so that the brightness is partially different when illuminating the entire surface of the display unit. Control the brightness of the backlight,
This is an information processing apparatus characterized by the above.
(Claim 5)
The invention according to claim 5 is the information processing apparatus according to claim 4,
The brightness control means includes an inner backlight disposed near a hinge portion that connects the first housing and the second housing so as to be openable and closable, and an outer backlight disposed away from the hinge portion. Among the backlights, when controlling the brightness of the backlight according to the opening / closing angle detected by the angle detection means, the plurality of the inner backlights are higher in brightness than the outer backlights. Control the backlight brightness of the
This is an information processing apparatus characterized by the above.
(Claim 6)
The invention according to claim 6 is the information processing apparatus according to any one of claims 2 to 5,
The backlight is a light emitting diode;
This is an information processing apparatus.
(Claim 7)
The invention according to claim 7 is the information processing apparatus according to claim 1,
Further comprising illuminance detection means for detecting the illuminance around the display unit;
The luminance control means controls the luminance of the light emitter according to the opening / closing angle detected by the angle detection means and the ambient illuminance detected by the illuminance detection means.
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured as described above.
(Claim 8)
The invention according to claim 8 is the information processing apparatus according to claim 1,
A discriminating unit for discriminating whether or not the open / closed angle detected by the angle detecting unit is within a shootable range in which the paper medium can be shot when shooting the paper medium by the imaging unit;
The brightness control means controls the brightness of the light emitter when it is determined by the determination means that it is within a photographic range.
This is an information processing apparatus characterized by the above.
(Claim 9)
The invention according to claim 9 is:
Against the computer,
The paper medium is photographed by an imaging means provided in a second casing that faces the first casing on which the paper medium to be read is arranged and is connected to the first casing so as to be openable and closable. A function of detecting an opening / closing angle between the first casing and the second casing;
A function of driving a light emitter provided in the second housing;
A function of controlling the luminance of the light emitter according to the detected opening and closing angle;
It is a program for realizing.

DESCRIPTION OF SYMBOLS 1 Control part 3 Memory | storage part 3a Program memory 3c Luminance table 3c-1 Angular luminance table 3c-2 Illuminance luminance table 4 Operation part 5 Touch display part 5a Display panel 5c Backlight 5d Luminance control part 6 Imaging part 8 Peripheral illumination sensor 9 Opening / closing Angle sensor 11 Tablet terminal device 12 Paper medium 13 Binder 13a 1st housing | casing 13b 2nd housing | casing 13c Hinge part

Claims (7)

A control device in which the second housing is coupled to the first housing so as to be adjustable in angle;
The second casing includes an imaging unit that is provided to face the first casing where the imaging target is arranged and that captures the imaging target, and a light emitter that can control brightness intensity. And
Detecting means for detecting an angle of the second casing that is angle-adjusted with respect to the first casing when the imaging target is photographed by the imaging unit ;
Discriminating means for discriminating whether or not the angle detected by the detecting means is within a predetermined angle range in which the imaging target can be imaged by the imaging unit;
Wherein when it is determined to be within the predetermined angle range determination means, wherein with the brightness of the light emitter when the detected angle is smaller by the detection means is controlled to be strong, of the brightness Control means for controlling to perform photographing by the imaging unit in accordance with strength control;
A control device comprising: The control means controls to repeatedly perform intensity control of the brightness of the light emitter and photographing by the imaging unit when the determination means determines that it is within the predetermined angle range, and the determination means When it is determined that it is not within the predetermined angle range, control is performed so as not to perform intensity control of brightness of the light emitter and photographing by the imaging unit.
The control device according to claim 1. The control means temporarily stores each captured image repeatedly captured by the imaging unit when the angle is within the predetermined angle range, and selects any one of the temporarily stored captured images. Control to save
The control device according to claim 2. Illuminance detection means for detecting the illuminance around the photographing object;
Further comprising
The control means controls the brightness of the light emitter to be increased when the illuminance detected by the illuminance detection means is small ;
Control device according to any one of claims 1 to 3, characterized in that. The control means is a control for increasing the brightness of the light emitter as the angle detected by the detection means decreases when the determination means determines that the angle is within the predetermined angle range. And control to increase the brightness of the light emitter as the illuminance detected by the illuminance detection means decreases, and control to repeatedly perform imaging by the imaging unit ,
The control device according to claim 4 . The control unit controls to start light emission by the light emitter and acquisition of a captured image by the imaging unit when it is determined by the determination unit to be within the predetermined angle range. Control to stop light emission by the light emitter and photographing by the imaging unit when it is determined that it is out of the predetermined angle range after the start of acquisition,
The control device according to any one of claims 1 to 5 , wherein: A program for controlling a computer of a control device in which a second housing is connected to a first housing so that the angle can be adjusted , and is provided to face the first housing in which a subject to be imaged is arranged. In addition, an imaging unit that photographs the subject to be photographed, and a light emitter that can control brightness intensity ,
The computer,
Detecting means for detecting an angle of the second casing that is angle-adjusted with respect to the first casing when the imaging target is photographed by the imaging unit;
A discriminating unit that discriminates whether or not the angle detected by the detecting unit is within a predetermined angle range in which the imaging unit can shoot the imaging target ;
Wherein when it is determined to be within the predetermined angle range determination means, wherein with the brightness of the light emitter when the detected angle is smaller by the detection means is controlled to be strong, of the brightness Control means for controlling to perform photographing by the imaging unit in accordance with strength control;
A program designed to function as

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