Abstract:
This invention relates to an information processing apparatus that includes a judging unit that judges a usage state of the information processing apparatus; a deciding unit that decides, according to the usage state, a position at which a display element on a display screen on a display unit is to be arranged in either a normal position or an inverted position on the display screen; and a display control unit that controls for arranging the display element in a determined position and for displaying the display element in the determined position on the display screen.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2009-067131 filed in Japan on Mar. 18, 2009. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to information processing apparatuses, display processing methods, and computer program product therefor. 
         [0004]    2. Description of the Related Art 
         [0005]    In recent years, apparatuses, such as copying machines, computers, and personal digital assistances (PDAs) equipped with touch panels as input devices, have increased. With such apparatuses equipped with touch panels, users input instructions by touching display screens with their fingers. 
         [0006]    Screens displayed by conventional apparatus, on the other hand, are generally configured in a uniform manner. In other words, display elements that are only used to display something to users, or to display elements such as icons or tabs, through which users input instructions. Such locations are arranged at commonly-used regular positions on the screen. Specifically, conventional screens are generally configured that displayed elements through which the user inputs instructions are arranged generally on an upper portion of the screen. 
         [0007]    Accordingly, when operating a horizontal touch panel, it is difficult for a user to operate the touch panel because the upper portion of the screen thereof is far from the user. In other words, with apparatuses equipped with a conventional type of touch panel, it is hard for users to press the touch panel having such a screen layout; operating the horizontal type touch panel is troublesome for users. A user&#39;s convenience is not considered. 
         [0008]    Furthermore, when using an apparatus equipped with an operation display unit that can be adjusted in the range between horizontal and perpendicular, it is difficult to operate display elements when the display elements are used as input instructions. Especially, if the display elements are arranged on the upper portion of the screen, it is more difficult for a user to operate due to the angle (of elevation) between the operation display unit and the main body. 
         [0009]    As described above, with conventional apparatuses, in some cases, the positions of display elements do not meet the preferences of users in terms of use of the apparatus. This causes a problem in that, depending on the intended use of the apparatus, it is difficult for the user to input instructions. (Patent Document 1: Japanese Patent Application Laid-open No. H10-40440) 
       SUMMARY OF THE INVENTION 
       [0010]    It is an object of the present invention to at least partially solve the problems in the conventional technology. 
         [0011]    According to an aspect of the present invention, there is provided an information processing apparatus including a judging unit that judges a usage state of the information processing apparatus; a deciding unit that decides, according to the usage state, a position at which a display element on a display screen on a display unit is to be arranged in either a normal position or an inverted position on the display screen; and a display control unit that controls for arranging the display element in a determined position and for displaying the display element in the determined position on the display screen. 
         [0012]    According to another aspect of the present invention, there is provided a display processing method executed in an information processing apparatus including judging a usage state of the information processing apparatus; deciding, according to the usage state, a position at which a display element on a display screen on a display unit is to be arranged in either a normal position or an inverted position on the display screen; and display controlling for arranging the display element in a determined position and for displaying the display element in the determined position on the display screen. 
         [0013]    According to still another aspect of the present invention, there is provided a computer program product including a computer-usable medium having computer-readable program codes embodied in the medium for processing information in an information processing apparatus, the program codes when executed causing a computer to execute: judging a usage state of the information processing apparatus; deciding, according to the usage state, a position at which a display element on a display screen on a display unit is to be arranged in either a normal position or an inverted position on the display screen; and display controlling for arranging the display element in a determined position and for displaying the display element in the determined position on the display screen. 
         [0014]    The above and other objects, features, advantages and technical and industrial significance of this invention will be better understood by reading the following detailed description of presently preferred embodiments of the invention, when considered in connection with the accompanying drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0015]      FIG. 1  is a block diagram illustrating the functional configuration of an information processing apparatus according to a first embodiment; 
           [0016]      FIG. 2  is a flowchart illustrating the flow of display processing performed in the first embodiment; 
           [0017]      FIG. 3  is a schematic diagram illustrating the angle between a display unit  102  and the apparatus main body; 
           [0018]      FIG. 4  is a schematic diagram illustrating an example method of detecting the angle between the display unit  102  and the apparatus main body; 
           [0019]      FIG. 5  is a schematic diagram illustrating an example method of detecting the angle between the display unit  102  and the apparatus main body; 
           [0020]      FIG. 6A  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0021]      FIG. 6B  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0022]      FIG. 7A  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0023]      FIG. 7B  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0024]      FIG. 8A  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0025]      FIG. 8B  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0026]      FIG. 9A  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0027]      FIG. 9B  is an example of a screen display in a case where the information processing apparatus is a laptop computer; 
           [0028]      FIG. 10  is an example of a screen display in a case where the information processing apparatus is a table-type touch panel; 
           [0029]      FIG. 11  is an example of a screen display in a case where the information processing apparatus is a table-type touch panel; 
           [0030]      FIG. 12  is an example of a screen display in a case where the information processing apparatus is a table-type touch panel; 
           [0031]      FIG. 13  is an example of a screen display in a case where the information processing apparatus is a car navigation device; 
           [0032]      FIG. 14  is an example of a screen display in a case where the information processing apparatus is a car navigation device; 
           [0033]      FIG. 15  is a block diagram illustrating the functional configuration of an MFP (Multi Function Printer)  1500  serving as the image forming apparatus; 
           [0034]      FIG. 16A  is an example of a screen display on an operation display unit of the MFP; 
           [0035]      FIG. 16B  is an example of a screen display on an operation display unit of the MFP; 
           [0036]      FIG. 17A  is an example of a screen display on an operation display unit of the MFP; 
           [0037]      FIG. 17B  is an example of a screen display on an operation display unit of the MFP; 
           [0038]      FIG. 18A  is an example of a screen display on an operation display unit of the MFP; and 
           [0039]      FIG. 18B  is an example of a screen display on an operation display unit of the MFP. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0040]    Exemplary embodiments of an information processing apparatus, information processing method, and computer program product therefore according to the present invention are described in detail below with reference to the accompanying drawings. 
         [0041]      FIG. 1  is a block diagram illustrating the functional configuration of an information processing apparatus according to a first embodiment. As shown in  FIG. 1 , an information processing apparatus  100  according to the embodiment mainly includes a display unit  102 , an input unit  101 , a display control unit  103 , a determining unit  104 , and a hard disk drive (HDD)  105 . 
         [0042]    The display unit  102  is a device that is used to display a display screen such as a display unit. The input unit  101  is an input device such as a mouse or a keyboard. The display unit  102  and the input unit  101  can be configured to be an input display device equipped with a touch panel. 
         [0043]    The determining unit  104  determines the usage state of the information processing apparatus  100 . Specifically, the determining unit  104  determines the angle, or an elevation angle, formed between the display unit  102  and the apparatus main body. 
         [0044]    The display control unit  103  performs control on displaying data to be displayed on the display unit  102 . Furthermore, the display control unit  103  changes the position or positions of one or a plurality of display elements contained in displayed data in accordance with the usage state of the information processing apparatus  100 . 
         [0045]    Specifically, the display control unit  103  changes positions of the display elements from an upper portion to a lower portion of the screen according to the usage state of the information processing apparatus, and changes positions thereof in an inverted manner. Furthermore, the display control unit  103  displays display elements on one side of the screen according to the usage state of the information processing apparatus. Specific examples of changing the positions of the display elements are described below. 
         [0046]    In addition to the display elements that are only used for displaying, the display elements include display elements that are used for inputting instructions. Examples of display elements that are used for inputting instructions include icons, tabs, list boxes, or the like; however, the display elements are not limited thereto. Furthermore, the display elements include, in addition to a single element such as an icon, a region bordering a certain area of the screen. 
         [0047]    The HDD  105  is a memory medium that stores therein data such as the displayed data or a display element. 
         [0048]    In the following, display processing according to the embodiment is described.  FIG. 2  is a flowchart illustrating the flow of the display processing performed in the first embodiment. 
         [0049]    First, the determining unit  104  determines the angle, or the angle of elevation, between the display unit  102  and the apparatus main body as the usage state of the information processing apparatus  100  (Step S 11 ).  FIG. 3  is a schematic diagram illustrating the angle between the display unit  102  and the apparatus main body. Various methods can be used for determining this angle.  FIGS. 4 and 5  are schematic diagrams illustrating example methods of detecting the angle between the display unit  102  and the apparatus main body. In the example shown in  FIG. 4 , an inclination detecting device similar to a digital level gauge or an angle meter is arranged at the joining portion of the main body and the display unit  102 . The inclination detecting device is configured to detect the angle between the display unit  102  and the main body. 
         [0050]    In the example shown in  FIG. 5 , a plurality of joining points is arranged inside the joining portion where the main body and the display unit  102  are joined. When a rotation shaft of the joining portion, where the main body and the display unit  102  are joined, comes into contact with one of the joining points, the angle between the display unit  102  and the main body is detected from the joining point where the rotation axis contacts. 
         [0051]    Referring back to  FIG. 2 , after detecting the angle between the display unit  102  and the main body at Step S 11 , the display control unit  103  determines the position of the display element according to the angle (Step S 12 ). For example, if the angle is between 0° and 90°, the display element that is used for inputting an instruction is configured to be displayed on the upper portion of the screen. If the angle is between 90° and 180°, the display element that is used for inputting the instruction is configured to be displayed on the lower portion of the screen, i.e., on a side closer to a user. 
         [0052]    When the position of the display element is determined, the display control unit  103  displays data to be displayed including the display element on the display unit  102  (Step S 13 ). 
         [0053]    Next, examples of positioning the display element on the screen are described.  FIGS. 6A ,  6 B,  7 A,  7 B,  8 A,  8 B,  9 A, and  9 B are examples of the screen display in a case where the information processing apparatus is a laptop computer. As shown in  FIG. 6A , if the display unit  102  and the main body are almost perpendicular, in a similar manner as with a conventional computer screen, tabs serving as the display elements are arranged on the upper portion of the screen; whereas, if the display unit  102  and the main body are almost horizontal, as shown in  FIG. 6B , tabs serving as the display elements are arranged on the lower portion of the screen. 
         [0054]    As shown in  FIG. 7A , if the display unit  102  and the main body are almost perpendicular, in a similar manner as with a conventional computer screen, an operating region, serving as a display element where tabs or keys are aligned, is arranged on the upper portion of the screen; whereas, if the display unit  102  and the main body are almost horizontal as shown in  FIG. 7B , an operation region is arranged on the lower portion of the screen. Furthermore, the items displayed in the operating region shown in  FIG. 7A  are displayed in inverted order of those shown in  FIG. 7B . 
         [0055]      FIGS. 8A ,  8 B, and  9 A are examples of a case where the display elements are icons; in a similar manner as in the above-described case, the positions of the icons shown in  FIGS. 8A and 8B  are inverted in relation to each other. 
         [0056]    In the examples described above as the usage state of the apparatus, the position of the display element is changed by determining the angle between the display unit and the main body; however, the usage state is not limited thereto. For example, the determining unit  104  determines whether a user is a right-handed person or a left-handed person from a history of click operations of the mouse by referring to an input history of the user stored in the memory medium such as the HDD  105 . If the user is a right-handed person, the configuration of the standard screen on the display control unit  103  shown in  FIG. 9A  can be changed in such the manner shown in  FIG. 9B , where the display elements are arranged side by side on the right side. 
         [0057]    Furthermore, if the information processing apparatus is a table type touch panel, the determining unit  104  can be configured to detect the position where the user is seated by using a motion detection sensor or the like. As shown in  FIGS. 10 and 12 , the display control unit  103  can be configured such that the display element is displayed near the detected position. In such a case, if a plurality of users is detected, as shown in  FIG. 11 , the display control unit  103  can be configured such that the display elements are displayed near each of the detected positions. 
         [0058]    Furthermore, if the information processing apparatus is a car navigation device, the determining unit  104  can be configured to determine whether a driver&#39;s seat is placed on a right side or a left side. As shown in  FIGS. 13 and 14 , the display control unit  103  can be configured to display a navigation screen serving as a display element on a screen on the driver&#39;s side. 
         [0059]    In a second embodiment, the present invention is applied to an image forming apparatus.  FIG. 15  is a block diagram illustrating the functional configuration of an MFP  1500  serving as the image forming apparatus. 
         [0060]    As shown in  FIG. 15 , the MFP  1500  according to the present embodiment includes an operation display unit  1501 , a display control unit  1503 , a determining unit  1504 , and an HDD  1505 . 
         [0061]    The operation display unit  1501  is a touch panel type device that displays various kinds of screens to a user and receives instructions that are input by the user. In the embodiment, the angle between the operation display unit  1501  and the main body can be changed. 
         [0062]    The determining unit  1504  determines the usage state of the MFP  1500 . The specific method of determining the usage state is the same as that described in the first embodiment. 
         [0063]    The display control unit  1503  performs control on displaying data to be displayed on the operation display unit  1501 . Furthermore, the display control unit  1503  changes a position or positions of one or a plurality of display elements in the displayed data according to the usage state of the MFP  1500 . The specific function is the same as that described in the first embodiment. Furthermore, display processing performed in the embodiment is the same as that in the first embodiment; therefore, a description thereof is not repeated. 
         [0064]      FIGS. 16A ,  16 B,  17 A,  17 B,  18 A, and  18 B show examples of the screen display of the display elements on the operation display unit  1501 . 
         [0065]    As shown in  FIG. 16A , if the operation display unit  101  and the main body are almost perpendicular, tabs serving as the display elements and keys indicating operating regions which are displayed on a menu screen for an application, are arranged on the upper portion of the screen. In contrast, as shown in  FIG. 16B , if the operation display unit  1501  and the main body are almost horizontal, the tabs, serving as the display elements, are arranged on the lower portion of the screen; and the keys indicating the operating regions, are displayed side by side. 
         [0066]    Furthermore, as shown in  FIG. 17A , if the operation display unit  101  and the main body are almost perpendicular, tabs, serving as the display element displayed on a setting screen for an application, are arranged on the upper portion of the screen. In contrast, as shown in  FIG. 17B , if the operation display unit  1501  and the main body are almost horizontal, the tabs, serving as the display elements, are arranged on the lower portion of the screen; and the keys, indicating the operating region, are displayed side by side on the lower portion thereof. In the examples shown in  FIGS. 18A and 18B , the positions of the tabs are changed and displayed on the screen in a similar manner. 
         [0067]    As described above, in the embodiment, because the positions of the display elements on the screen are changed according to the usage state of the apparatus, it is possible for users to easily input the instructions regardless of their intended use of the apparatus. 
         [0068]    The information processing apparatus and a display processing program that is executed by the MFP according to the embodiments are installed in advance in a ROM or the like. 
         [0069]    The information processing apparatus and the display processing program that is executed by the MFP according to the embodiments can be configured such that files are stored, in an installable or executable manner, in a computer readable recording medium, such as a CD-ROM, a flexible disk (FD), a CD-R, a digital versatile disk (DVD), or the like. 
         [0070]    Furthermore, the information processing apparatus and the display processing program that is executed by the MFP according to the embodiments can be configured to be stored in a computer connected to the network such as the Internet and be downloaded via a network. The information processing apparatus and the display processing programs that are executed by the MFP according to the embodiments can be configured to be provided or distributed via a network such as the Internet. 
         [0071]    The information processing apparatus and the display processing program that is executed by the MFP according to the embodiment have a modular structure including the above described units (the display control unit and the determining unit). When hardware is actually used, a CPU (processor) reads the display and execute processing program from the ROM, whereby the above described units are loaded into the main storage device, and then the display control unit and the determining unit are created in the main storage device. 
         [0072]    According to an aspect of the present invention, an advantage is provided in that it is possible for users to easily input instructions regardless of their intended use of an apparatus. 
         [0073]    Although the invention has been described with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching herein set forth.