Patent Publication Number: US-2021185162-A1

Title: Information processing device and information processing method

Description:
FIELD 
     The present disclosure relates to an information processing device and an information processing method. 
     BACKGROUND 
     Recently, a technology of supporting an operation by a finger of a user in a device having a touch panel has been developed. For example, in Patent Literature 1, a technology in which a position of a controller displayed on a screen is controlled on the basis of a position of a finger of a user which position is detected by a sensor included in a back surface of the device is disclosed. 
     CITATION LIST 
     Patent Literature 
     
         
         Patent Literature 1: US 2013/0093680 A 
       
    
     SUMMARY 
     Technical Problem 
     However, in the technology disclosed in Patent Literature 1, a device needs to additionally include a sensor to detect a finger. Also, there is a case where the technology disclosed in Patent Literature 1 cannot optimize an operation in a small device such as a smartphone used with one hand. 
     Thus, the present disclosure proposes an information processing device and an information processing method capable of reducing an operational burden of a small terminal that has a touch panel and that is used with one hand. 
     Solution to Problem 
     According to the present disclosure, an information processing device is provided. The information processing device includes a control unit that determines, on the basis of a detection position of an operating finger of a user on a side surface with respect to a display screen, a region to display predetermined information on the display screen, and that determines, on the basis of the detection position, a region to receive an operation by the operating finger from a region that is a combination of the display screen and the side surface. 
     Moreover, according to the present disclosure, an information processing method is provided. The information processing method includes determining, on the basis of a detection position of an operating finger of a user on a side surface with respect to a display screen, a region to display predetermined information on the display screen, and determining, on the basis of the detection position, a region to receive an operation by the operating finger from a region that is a combination of the display screen and the side surface, the determining being performed by a processor. 
     Advantageous Effects of Invention 
     As described above, according to the present disclosure, it becomes possible to reduce an operational burden of a small terminal that has a touch panel and that is used with one hand. 
     Note that the above effect is not necessarily a limitation, and any of the effects described in the present description, or other effects that can be grasped from the present description may be acquired in addition to or instead of the above effect. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a view illustrating an example of an external configuration of an information processing terminal  10  of the present disclosure. 
         FIG. 2  is a view for describing an example of a functional configuration of the information processing terminal  10  according to the embodiment. 
         FIG. 3  is a view illustrating an example of displaying an icon of an application on the basis of a detection position of a trigger operation on a side surface according to the embodiment. 
         FIG. 4  is a view illustrating an example of image photographing processing of a photographic application using the side surface according to the embodiment. 
         FIG. 5  is a view illustrating an example of moving image photographing processing of the photographic application on the side surface according to the embodiment. 
         FIG. 6  is a view for describing an example of determining a region to receive an operation on the side surface of the information processing terminal  10  according to the embodiment. 
         FIG. 7  is a view for describing an example of limiting a region to receive an operation on the side surface of the information processing terminal  10  according to the embodiment. 
         FIG. 8  is a view for describing an example of an operation using the side surface in a case where the information processing terminal  10  according to the embodiment is used in a horizontal direction. 
         FIG. 9  is a view for describing an example of an application starting processing based on an operation on the side surface of the information processing terminal  10  according to the embodiment. 
         FIG. 10  is a view for describing an example of an application starting processing based on an operation on the side surface of the information processing terminal  10  according to the embodiment. 
         FIG. 11  is a view for describing an example of a flow of an icon displaying operation according to the embodiment. 
         FIG. 12  is a view for describing an example of a flow of an image photographing operation by the photographic application according to the embodiment. 
         FIG. 13  is a view for describing an example of a flow of a moving image photographing operation by the photographic application according to the embodiment. 
         FIG. 14  is a view for describing an example of a flow of an operation of determining a region to receive an operation according to the embodiment. 
         FIG. 15  is a block diagram illustrating an example of a hardware configuration of the information processing terminal  10  according to an embodiment of the present disclosure. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Note that the same signs are assigned to components having substantially the same functional configurations in the present description and drawings, and overlapped description thereof is omitted. 
     Note that the description will be made in the following order. 
     1. Example of external configuration of information processing terminal  10   
     2. Example of functional configuration of information processing terminal  10   
     3. Detailed example 
     3-1. Example of screen display 
     3-2. Example of operation flow 
     4. Example of hardware configuration 
     5. Conclusion 
     1. EXAMPLE OF EXTERNAL CONFIGURATION OF INFORMATION PROCESSING TERMINAL  10   
       FIG. 1  is a view illustrating an example of an external configuration of an information processing terminal  10  of the present disclosure. On a left side of  FIG. 1 , a front surface of the information processing terminal  10  is illustrated. Also, a back surface of the information processing terminal  10  is illustrated on a right side of  FIG. 1 . The information processing terminal  10  is, for example, a smartphone. Also, the information processing terminal  10  may be a tablet terminal. 
     The information processing terminal  10  includes a display  160 . The display  160  covers a sensor unit  110  (described later). With such a configuration, the information processing terminal  10  can detect a finger of a user in contact with the display  160 . Note that the display  160  may cover a part or whole of a side surface of the information processing terminal  10 . 
     Also, the information processing terminal  10  can control contents of a display screen on the basis of a user input. For example, the information processing terminal  10  can display execution information related to function execution of an application on the display  160  by using a so-called graphical user interface (GUI). Here, the execution information means visual information such as an icon causing an application to execute predetermined processing, a result of execution of the predetermined processing by the application, and the like. 
     The information processing terminal  10  includes, for example, a camera  140  and a display  160 . Here, the camera  140  may be provided in one or both of the front surface and the back surface of the information processing terminal  10 , as illustrated in  FIG. 1 . 
     2. EXAMPLE OF FUNCTIONAL CONFIGURATION OF INFORMATION PROCESSING TERMINAL  10   
     Next, an example of the functional configuration of the information processing terminal  10  according to the present embodiment will be described.  FIG. 2  is a view for describing an example of the functional configuration of the information processing terminal  10  according to the present embodiment. As illustrated in  FIG. 2 , the information processing terminal  10  is an information processing device including a sensor unit  110 , an input unit  120 , a storage unit  130 , a camera  140 , a control unit  150 , a display  160 , a specification unit  170 , and a communication unit  180 . 
     (Sensor Unit  110 ) 
     The sensor unit  110  according to the present embodiment has a function of detecting a contact made by a finger of a user with the information processing terminal  10 . Here, the sensor unit  110  can detect a position of the finger of the user in contact with the front surface and the side surface of the information processing terminal  10 . Note that the sensor unit  110  is realized, for example, by a capacitance-type touch sensor or a pressure sensitive-type touch sensor. Note that in a case of the capacitance-type touch sensor, operation using a side surface may be realized without an arrangement of a touch sensor immediately below the side surface portion of the information processing terminal  10  by setting such that sensitivity of a touch sensor, which is arranged immediately below the front surface of the information processing terminal, in a direction of the side surface becomes high. In this case, when the sensitivity of the side surface portion of the information processing terminal  10  is set to be higher than that of a touch sensor in other regions, the operation using the side surface is realized. 
     Also, the sensor unit  110  may detect a position of an operating finger that executes a trigger operation. Here, the trigger operation means an operation for causing an application to execute predetermined processing, or an operation for causing a result of the execution of the predetermined processing by the application to be displayed. Also, the trigger operation specifically refers to a tap, double-tap, push, and the like. In addition, the operating finger means, among a plurality of fingers of a user that holds the information processing terminal  10 , a finger that executes an operation on the display  160  in order to cause the application to execute predetermined processing. 
     (Input Unit  120 ) 
     The input unit  120  according to the present embodiment includes various sensors such as an acceleration sensor and a position information sensor, and has a function of acquiring data by using the various sensors. The input unit  120  provides the acquired data to the specification unit  170  (described later). 
     (Storage Unit  130 ) 
     The storage unit  130  according to the present embodiment is a storage area to temporarily or permanently store various kinds of programs and data. The storage unit  130  may store information related to various applications, for example. More specifically, for example, the storage unit  130  may store a program for executing an application, and management data to manage various settings and the like. Obviously, the above is merely an example, and a type of data stored in the storage unit  130  is not specifically limited. 
     (Camera  140 ) 
     The camera  140  according to the present embodiment is used for photographing processing of an image or moving image under control of a photographic application. Here, the photographic application means an application capable of photographing an image or a moving image. Note that the camera  140  is provided in one or both of the front surface and the back surface of the information processing terminal  10 . 
     (Control Unit  150 ) 
     The control unit  150  according to the present embodiment has a function of determining, on the basis of a detection position of an operating finger on the side surface of the information processing terminal  10  which position is detected by the sensor unit  110 , a region to receive an operation by the operating finger. Also, here, the detection position of the operating finger means a position where an operation on the side surface of the information processing terminal  10  is executed among positions where the operation finger executes an operation on the information processing terminal  10 . 
     A detailed description will be made. For example, the control unit  150  determines a region to display predetermined information on a display screen on the basis of a detection position of an operating finger that executes a trigger operation on the side surface, the position being detected by the sensor unit  110 . Also, the control unit  150  determines a region to receive a subsequent operation by the operating finger from a region, which is a combination of the display screen and the side surface, on the basis of the detection position of the operating finger that executes the trigger operation on the side surface which position is detected by the sensor unit  110 . Here, on the basis of the detection position, the control unit  150  may determine a region assumed to be reached by the operating finger as a region to receive an operation. 
     Here, the subsequent operation means an operation executed on the region determined by the control unit  150  on the basis of the detection position of the operating finger that executes the trigger operation. 
     Note that there is a case where the control unit  150  determines a region to receive an operation by the operating finger on the basis of a detection position where the sensor unit  110  detects a finger other than the operating finger of the user. 
     In such a manner, by receiving the operation on the region assumed to be reached by a finger of the user, it is possible to reduce a burden on the user of an operation with respect to the information processing terminal  10 . 
     Also, the control unit  150  may cause the display  160  to display execution information related to function execution of an application in a case where the sensor unit  110  detects that the trigger operation is executed by the operating finger on the side surface. 
     The control unit  150  has a function of causing various applications to execute predetermined processing on the basis of an operation related to function execution of the application by the finger of the user. The operation related to the function execution of the application includes, for example, a touch operation on an icon of the application. Also, the function execution of an application includes execution of functions unique for various applications. 
     For example, the control unit  150  can control photographing processing of the photographic application. More specifically, the control unit  150  can perform control in such a manner that the photographic application photographs an image or moving image with the camera  140 . Also, the control unit  150  may cause the display  160  (described later) to display information related to the photographing processing. Here, the information related to the photographing processing means a preview image expressing a result of the photographing processing, a controller to control the photographing processing, and the like. 
     Also, the control unit  150  has a function of controlling each configuration included in the information processing terminal  10 . The control unit  150  controls, for example, starting and stopping of each component. 
     (Display  160 ) 
     The display  160  according to the present embodiment is a touch panel having a function of displaying execution information related to function execution of an application on a display screen under control by the control unit  150 . 
     (Specification Unit  170 ) 
     The specification unit  170  according to the present embodiment has a function of specifying a predetermined application on the basis of predetermined criteria. Here, the predetermined criteria are, for example, current time, a current location, a frequency of use of various applications, and the like. For example, the specification unit  170  may specify an application used more frequently than other applications among various applications stored in the storage unit  130 . 
     The specification unit  170  may specify an application by using a model constructed by machine learning of an operation by the user on the information processing terminal  10  or of predetermined criteria. The machine learning may be machine learning using a neural network such as deep learning. Note that the constructed model may be stored in the storage unit  130 . 
     Also, the specification unit  170  may specify an application by using information acquired by machine learning from data that is related to terminal usage by a plurality of users and that is received from other devices via a network  20  (described later). Execution information related to the application may be displayed to the user by the display  160  controlled by the control unit  150 . 
     (Communication Unit  180 ) 
     The communication unit  180  according to the present embodiment has a function of executing communication with other devices via the network  20  (described later). For example, the communication unit  180  may receive, from the other devices, information acquired by machine learning from the above-described data related to terminal usage by a plurality of users. 
     (Network  20 ) 
     The network  20  according to the present embodiment has a function of connecting the components included in the information processing system. The network  20  may include the Internet, a public line network such as a telephone line network or a satellite communication network, various local area networks (LAN) including Ethernet (registered trademark), a wide area network (WAN), and the like. Also, the network  20  may include a leased line network such as an Internet protocol-virtual private network (IP-VPN). Also, the network  20  may include a wireless communication network such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). 
     In the above, an example of a functional configuration of the information processing terminal  10  according to the present embodiment has been described. Note that the functional configuration described above with reference to  FIG. 2  is merely an example, and the functional configuration of the information processing terminal  10  according to the present embodiment is not limited to this example. For example, the information processing terminal  10  does not necessarily include all of the configurations illustrated in  FIG. 2 . For example, the storage unit  130 , the camera  140 , and the specification unit  170  can be included in another device different from the information processing terminal  10 . The functional configuration of the information processing terminal  10  according to the present embodiment can be flexibly modified according to specifications and operation. 
     Also, functions of the components may be executed when an arithmetic unit such as a central processing unit (CPU) reads a control program describing a processing procedure to realize these functions from a storage medium such as a read only memory (ROM) or a random access memory (RAM) storing the control program, and interprets and executes the program. Thus, it is possible to appropriately change a configuration to be used according to a technical level at the time of performance of the present embodiment. An example of a hardware configuration of the information processing terminal  10  will be described later. 
     3. DETAILED EXAMPLE 
     &lt;3-1. Example of Screen Display&gt; 
     Next, an operation of the control unit  150  according to the present embodiment will be described in detail with a detailed example. 
       FIG. 3  is a view illustrating an example of displaying an icon of an application on the basis of a detection position of a trigger operation on the side surface according to the present embodiment. On a left side of  FIG. 3 , the information processing terminal  10  held by a hand of a user is illustrated. The information processing terminal  10  includes a display  160 . 
     On the left side of  FIG. 3 , when a trigger operation is executed by an operating finger F on a side surface of the information processing terminal  10 , the control unit  150  determines a region to display an icon of an application on the display  160 , which is a display screen, on the basis of a detection position TP 1  of the operating finger F. On a right side of  FIG. 3 , icons I 1  of a plurality of applications are displayed on the display  160  as execution information related to function execution of the applications on the basis of the detection position. 
     In the example on the left side of  FIG. 3 , when the sensor unit  110  detects a double-tap operation executed by the operating finger F at a detection position TP 1 , the control unit  150  causes the display  160  to display the icons I 1  of the plurality of applications. 
     In the example on the right side of  FIG. 3 , the control unit  150  causes the icons I 1  of the plurality of applications to be displayed with a height on the display screen, which height corresponds to the detection position TP 1  on the side surface, as the uppermost row. Here, the icons I 1  are displayed in a region assumed to be reached by the operating finger F. Also, in the example on the right side of  FIG. 3 , the control unit  150  determines, as the region assumed to be reached by the operating finger F, a region on the right side of the entire display  160 . Obviously, an arrangement of the icons displayed on the display screen by the control unit  150  is not limited to this example. 
     For example, in a case where the user executes, as the subsequent operation, a touch operation on any one of the icons I 1  of the plurality of applications, the control unit  150  may execute starting processing of an application corresponding to an icon on which the touch operation is executed. 
     Also, an application related to a displayed icon can be specified by the specification unit  170  on the basis of predetermined criteria. The control unit  150  causes the display  160  to display icons I 1  of a plurality of applications specified by the specification unit  170 . Here, for example, the control unit  150  may cause the display  160  to display an icon of a more-frequently-used application at a high position on the display screen compared to compared to icons of other applications. 
     Note that in a case where the sensor unit  110  detects a slide operation by the operating finger F on the display screen, the control unit  150  may control the icons of the plurality of applications to scroll vertically, for example. By the control, even in a case where icons of many applications are displayed, the user can execute an operation related to the starting processing of an application. 
     In such a manner, the information processing terminal  10  can display icons of applications on the basis of a detection position of a finger of a user. With such a function, it becomes possible to reduce a burden on the user of the operation related to the starting processing of an application. 
     Note that with respect to the display  160  that is a display screen, the control unit  150  may also determine a region to display execution information related to an application that does not require a subsequent operation and that is, for example, a clock application or the like on the basis of the detection position TP 1  of the operating finger F. 
     In the above, an example in which the information processing terminal  10  displays icons of applications has been described. Here, the information processing terminal  10  may execute processing related to an active application in a case where a trigger operation on the side surface of the information processing terminal  10  is detected. 
       FIG. 4  is a view illustrating an example of image photographing processing by a photographic application using the side surface according to the present embodiment. In  FIG. 4 , the information processing terminal  10  in which the photographic application is active is illustrated. 
     On a left side of  FIG. 4 , a scenery projected by the camera  140  is displayed on the display  160 . In a case where the sensor unit  110  detects execution of a trigger operation by the operating finger F on the side surface of the information processing terminal  10 , the control unit  150  causes the photographic application to execute image photographing processing. 
     Here, for example, in a case where the sensor unit  110  detects execution of a double-tap operation, the control unit  150  may cause the photographic application to execute the photographing processing after a predetermined period. This is because the information processing terminal  10  shakes due to the double-tap immediately after the double-tap operation by the user and a still image with a blurred picture may be photographed even when the photographing processing is executed. Here, the control unit  150  may cause the display  160  to display a figure or a character of a predetermined icon (such as icon indicating that photographing processing is in progress) or the like on the basis of a detection position TP 2  during standing by for elapse of the predetermined period before the photographic application starts executing the photographing processing. The displayed icon is hidden after the elapse of the predetermined period. Note that the standby and display of icons and the like after the double-tap operation are the similar in moving image photographing processing (described later). 
     On a right side of  FIG. 4 , the control unit  150  causes the display  160  to display, as a preview image W 1 , a result image photographed by the photographic application of the operating finger that executes the trigger operation on the side surface. Here, the preview image means, for example, a result that is acquired by execution of the photographing processing by the photographic application and that is for the user to check a photographed image or moving image. For example, a thumbnail image of a photographed image can be displayed as a preview image. 
     In the example on the right side of  FIG. 4 , the control unit  150  causes the display  160  to display the preview image W 1  on the basis of the detection position TP 2  of the operating finger that executes the double-tap operation on the side surface, the position being detected by the sensor unit  110 . Here, the preview image W 1  is displayed with a height on the display screen, which height corresponds to the detection position TP 2 , as a reference. Here, the control unit  150  causes the display  160  to make a display at a position and with a size assumed to be reached by the operating finger F. 
     Note that, for example, in a case where the sensor unit  110  detects an operation such as a touch by the operating finger F on the preview image W 1 , the control unit  150  may cause the image photographed by the photographic application to be displayed on the entire display  160 . Note that the control unit  150  may cause the photographic application to stand by for a predetermined period before the photographic application is caused to execute the photographing processing after the trigger operation executed on the side surface by the operating finger is detected. 
     In such a manner, the information processing terminal  10  can photograph an image and display a preview image on the basis of the trigger operation by the operating finger on the side surface. With such a function, it becomes possible for the user to perform photographing while holding the information processing terminal without difficulty. 
     In the above, an example in which the information processing terminal  10  causes the photographic application to photograph an image has been described. However, application to an example of executing photographing of a moving image is also possible.  FIG. 5  is a view illustrating an example of a moving image photographing processing of the photographic application on the side surface according to the present embodiment. In  FIG. 5 , the information processing terminal  10  in which the photographic application is active is illustrated. 
     On a left side of  FIG. 5 , a scenery is displayed on the display  160  by the camera  140 . In a case where the sensor unit  110  detects execution of a trigger operation by the operating finger F on the side surface of the information processing terminal  10 , the control unit  150  causes the photographic application to start photographing of a moving image. 
     In the middle of  FIG. 5 , the control unit  150  causes the photographic application to photograph a moving image. Also, during execution of the photographing, the control unit  150  causes the display  160  to display a controller C on the basis of a detection position TP 3  at which the trigger operation is executed and which is detected by the sensor unit  110 . Here, the controller is a button to control photographing processing by the photographic application. For example, in a case where the sensor unit  110  detects an operation by the operating finger F on a region in an upper part of the controller C, the control unit  150  may cause the photographic application to end the photographing of a moving image, for example. Also, in a case where an operation on a region at a center of the controller C is detected, for example, the photographing of a moving image by the photographic application may be temporarily stopped. Also, in a case where an operation on a region in a lower part of the controller C is detected, for example, the photographic application may be caused to execute photographing of a still image. Also, in a case where the sensor unit  110  detects a predetermined operation such as a double-tap operation by the operating finger F on the side surface, the control unit  150  may cause the photographic application to end the photographing of a moving image. 
     On a right side of  FIG. 5 , the control unit  150  causes the display  160  to display a preview image W 2 , which is a result moving image photographed by the photographic application, following the processing of ending the photographing of a moving image. Here, for example, the preview image W 2  may be displayed on the display  160  with a height on the display screen, which height corresponds to a detection position TP 3 , as a reference. Also, for example, a thumbnail image corresponding to a first scene of a moving image can be displayed as the preview image W 2 . 
     In such a manner, the information processing terminal  10  can photograph a moving image and display a preview image on the basis of the trigger operation by the operating finger on the side surface. With such a function, it becomes possible for the user to perform moving image photographing while holding the information processing terminal without difficulty. 
     In the above, an example in which a region to receive an operation on the display screen is determined on the basis of a detection position of a trigger operation on the side surface of the information processing terminal  10  has been described. However, a region to receive an operation by a finger of a user on the side surface of the information processing terminal  10  may be determined on the basis of the detection position. 
       FIG. 6  is a view for describing an example of determining a region to receive an operation on the side surface of the information processing terminal  10  according to the present embodiment. In  FIG. 6 , the information processing terminal  10  held by a hand of a user is illustrated. Note that in the example of  FIG. 6 , the information processing terminal  10  causes the display  160  to display an active Internet browser. 
     In  FIG. 6 , the control unit  150  determines a position to receive an operation related to execution of an application on the side surface on the basis of a position of a finger of the user. In an example on a left side of  FIG. 6 , the control unit  150  is in a state of receiving an operation by a finger of the user only on a right side surface S 1  of the information processing terminal  10 . In other words, the control unit  150  is in a state of not receiving an operation by a finger of the user on a left side surface S 2  of the information processing terminal  10 . Here, when the user slides an operating finger F on the right side surface S 1  of the information processing terminal  10 , for example, the Internet browser executes “return” processing, for example. 
     In an example on the right side of  FIG. 6 , the control unit  150  causes the display  160  to display a previous page of a page displayed on the left side of  FIG. 6 . 
     Here, the control unit  150  may determine, as a region (side surface) to receive an operation related to function execution of an application, a side surface on which an operation is assumed to be executed by the operating finger of the user between the right and left side surfaces of the information processing terminal  10 . Note that in a case of the example illustrated in  FIG. 6 , the operating finger is a thumb. The region may be manually set by the user. 
     In such a manner, it is possible to determine a region to receive an operation on the side surface of the information processing terminal  10 . With such a function, it is possible to prevent erroneous generation of processing. 
     Also, processing executed by the control unit  150  in a case where the sensor unit  110  detects execution of an operation on the side surface is not limited to the above example. For example, the control unit  150  may execute processing of adjusting an output volume of the information processing terminal  10  in a case where the sensor unit  110  detects a slide operation on the side surface. 
     In the above, an example of determining a region to receive an operation on the side surface has been described. However, it is also possible to prevent erroneous generation of processing by limiting a region to receives an operation on the side surface. 
       FIG. 7  is a view for describing an example of limiting a region to receive an operation on the side surface of the information processing terminal  10  according to the present embodiment. In  FIG. 7 , an information processing terminal  10  including a display  160  on which icons I 2  of a plurality of applications are displayed is illustrated. 
     In  FIG. 7 , the control unit  150  limits a region to receive an operation by a finger of a user on a side surface with a height on a display screen, which height corresponds to a detection position of an operating finger on the side surface, as a reference. 
     In the example of  FIG. 7 , the control unit  150  determines a region R 1  and a region R 2  on the basis of a detection position TP 4   a  of an operating finger F executing a trigger operation, which position is detected by the sensor unit  110 , among detection positions TP 4   a , TP 4   b , and TP 5  to TP 7 . Here, for example, as a region to receive an operation by a finger of the user, the control unit  150  determines that an operable side surface R 1   a  that is a right side surface of the region R 1  is a region assumed to be reached by the operating finger F. Also, the control unit  150  may determine, as a region not to receive an operation by a finger of the user, a left side surface of the region R 1  and right and left side surfaces of the region R 2 , that is, a region other than the operable side surface R 1   a.    
     In the example of  FIG. 7 , a case where the trigger operation is executed by the operating finger F has been described. However, the control unit  150  may determine a region R 1  and a region R 2  on the basis of a positional relationship between a plurality of fingers of a user which relationship is detected by the sensor unit  110 , that is, a positional relationship between the detection positions TP 4   a , TP 4   b , and TP 5  to TP 7 , for example. 
     In such a manner, it is possible to limit a region to receive an operation on the side surface, that is, a region in which the sensor unit  110  detects an operation on the side surface. With such a function, it becomes possible to efficiently prevent erroneous generation of processing according to a way how the information processing terminal  10  is held. 
     In  FIG. 7 , an example in which the control unit  150  limits a region to receive an operation on the side surface has been described. However, for example, the control unit  150  may limit a region to receive an operation on the display screen with a height on the display screen, which height corresponds to a detection position of an operating finger on the side surface, as a reference. Also, the control unit  150  may limit a region to receive an operation on each of the display screen and the side surface with the height as a reference. With such a function, it becomes also possible to prevent erroneous generation of processing of an operation by a finger of a user on the display screen. 
     In the above, an example of a case where the information processing terminal  10  is used in a vertical direction has been described. However, even in a case where the information processing terminal  10  is used in a horizontal direction, an operation using the side surface of the information processing terminal  10  is possible. 
       FIG. 8  is a view for describing an example of an operation on the side surface in a case where the information processing terminal  10  according to the present embodiment is used in the horizontal direction. In  FIG. 8 , the information processing terminal  10  in the horizontal direction in which terminal a photographic application is active is illustrated. 
     In an example in an upper part of  FIG. 8 , a scenery projected by the camera  140  is displayed on the display  160 . In a case where the sensor unit  110  detects execution of a double-tap operation by an operating finger F on the side surface of the information processing terminal  10 , the control unit  150  causes the photographic application to execute image photographing processing. 
     In an example in a lower part of  FIG. 8 , the control unit  150  causes the display  160  to display a result image photographing by the photographic application as a preview image W 3 . Here, the control unit  150  causes the display  160  to display the preview image W 3  at a detection position TP 8  where the sensor unit  110  detects the double-tap. As illustrated in the lower part of  FIG. 8 , in a case where the information processing terminal  10  is used in the horizontal direction, a position where the double-tap is executed is, for example, an upper side surface of the information processing terminal  10 . 
     With such a function, even in a case where the information processing terminal  10  is used in the horizontal direction with one hand, it becomes possible to reduce a burden of the operation. 
     Also, the information processing terminal  10  according to the present embodiment can select an application to be started only on the basis of an operation on the side surface.  FIG. 9  is a view for describing an example of application starting processing based on an operation on the side surface of the information processing terminal  10  according to the present embodiment. In  FIG. 9 , the information processing terminal  10  held by a hand of a user is illustrated. 
     In an upper left part of  FIG. 9 , the information processing terminal  10  is held by a hand of the user. Here, when the user executes a trigger operation on the side surface of the information processing terminal  10  by using an operating finger F, the control unit  150  causes the display  160  to display icons C 1  of a plurality of applications on the basis of a detection position TP 9  of the operating finger F executing the trigger operation, the position being detected by the sensor unit  110 . 
     As illustrated in an upper right part of  FIG. 9 , the control unit  150  may cause the display  160  to display the icons C 1  of the plurality of applications in a circular manner centered on the detection position TP 9 , for example. 
     Note that the control unit  150  may cause the display  160  to display icons C 2  larger than the icons C 1  of the plurality of applications in a case where the sensor unit  110  keeps detecting a pushing operation at the detection position TP 9 . Also, in a case where the sensor unit  110  keeps detecting the pushing operation at the detection position TP 9 , the control unit  150  causes the display  160  to display icons C 3  larger than the icons C 2  of the plurality of applications. 
     As described above, the information processing terminal  10  performs displaying in such a manner that icons of a plurality of applications become gradually larger in response to a pushing operation on the side surface by a finger of a user. Thus, the user can easily grasp a status of a series of operations related to the application starting processing. 
       FIG. 10  is a view for describing an example of application starting processing based on an operation on the side surface of the information processing terminal  10  according to the present embodiment. In  FIG. 10 , the information processing terminal  10  held by a hand of a user is illustrated. 
     In an upper left part of  FIG. 10 , the display  160  displays icons C 4  of a plurality of applications in a circular manner. Also, here, the user performs a slide operation with an operating finger F on the side surface of the information processing terminal  10 . In response to detection of the slide operation via the sensor unit  110 , the control unit  150  causes the display  160  to rotate and display the icons C 4  of the plurality of applications displayed in the circular manner. 
     As illustrated in an upper right part of  FIG. 10 , since the control unit  150  rotates the icons C 4 , an icon I 4  of an application is displayed at a left center of the circle. Here, the icon I 4  of the application is different from an icon I 3  of an application displayed at a left center of a circle in the upper left part of  FIG. 10  Similarly, as illustrated in a lower left part of  FIG. 10 , an icon I 5  of an application is different from the icon I 4  of the application displayed at the left center of the circle in the upper left part of  FIG. 10 . 
     In the lower left part of  FIG. 10 , for example, in a case where the sensor unit  110  detects a pushing operation by an operating finger F at a detection position TP 10  on the side surface of the information processing terminal  10 , the control unit  150  executes starting processing of an application corresponding to the icon I 5  displayed right next to the detection position TP 10 . Here, the control unit  150  may perform control such that the icon I 5  is displayed larger than the other icons on the display  160 , a color of the icon I 5  is changed, or the like. By the control, it becomes easy for the user to grasp which icon of the plurality of icons the selected icon is. 
     Also, in the lower left part of  FIG. 10 , even in a case where the sensor unit  110  no longer detects a contact of the operating finger F on the side surface of the information processing terminal  10 , in a case where a pushing operation by the operating finger F is subsequently detected on the side surface including TP 10 , the control unit  150  may execute starting processing of the application corresponding to the icon I 5  Here, the control unit  150  may not execute the pushing operation, that is, the starting processing of the application corresponding to the icon I 5  in a case where the sensor unit  110  detects the pushing operation at a position on the side surface which position is separated from the detection position TP 10  for a predetermined distance or more. This is to prevent erroneous generation of application starting processing. 
     In the lower right part of  FIG. 10 , a screen of the application corresponding to the icon I 5  is displayed on the display screen on the display  160 . 
     In such a manner, the user can execute starting processing of the application without hiding the display  160  with a finger of the user, which display functions as the display screen, and without changing a position of an operating finger much. With such a function, it becomes possible to further reduce a burden of an operation by the finger of the user on the side surface of the information processing terminal  10 . 
     An example in which application starting processing is executed only on the basis of an operation on the side surface has been described. Here, the information processing terminal  10  may execute screen switching processing of active applications only on the basis of an operation by an operating finger on the side surface. That is, icons displayed in a circular manner on the display  160  may be icons of active applications, and the control unit  150  can display a screen of a selected active application on the display  160 . 
     &lt;3-2. Example of Operation Flow&gt; 
     Next, an example of a flow of an operation of the information processing terminal  10  according to the present embodiment will be described.  FIG. 11  is a view for describing an example of a flow of an icon displaying operation according to the present embodiment. 
     Referring to  FIG. 11 , first, it is determined whether the sensor unit  110  detects a trigger operation on a side surface of the information processing terminal  10  (S 1001 ). In a case where the sensor unit  110  does not detect the trigger operation (S 1001 : NO), the operation returns to Step S 1001 . In a case where the sensor unit  110  detects the trigger operation (S 1001 : YES), the specification unit  170  specifies an application on the basis of predetermined criteria (S 1002 ). Then, the control unit  150  determines a region to receive an operation by an operating finger on the basis of a height on the display screen which height corresponds to a detection position of the operating finger that executes the trigger operation (S 1003 ). 
     Then, the control unit  150  causes an icon of an application to be displayed on the region determined in Step S 1003  (S 1004 ). Then, the sensor unit  110  determines whether an operation on the icon of the application which icon is displayed on the display screen of the information processing terminal  10  is detected (S 1005 ). In a case where the operation on the icon is detected (S 1005 : YES), the control unit  150  executes starting processing of the application corresponding to the icon (S 1006 ), and the operation is ended. On the one hand, in a case where the trigger operation on the icon is not detected (S 1005 : NO), it is determined whether an operation such as a double-tap on the side surface of the information processing terminal  10  is detected (S 1007 ). In a case where the operation on the side surface is not detected (S 1007 : NO), the operation returns to Step S 1005 . In a case where a double-tap operation on the side surface is detected (S 1007 : YES), the icon displayed in Step S 1004  is hidden (S 1008 ), and the operation is ended. 
     Next, an example of a flow of an image photographing operation by a photographic application according to the present embodiment will be described.  FIG. 12  is a view for describing an example of a flow of an image photographing operation by the photographic application according to the present embodiment. 
     Referring to  FIG. 12 , first, it is determined whether the sensor unit  110  detects a trigger operation on the side surface of the information processing terminal  10  in a state in which the photographic application is active in the information processing terminal  10  (S 1101 ). In a case where the trigger operation on the side surface is not detected (S 1101 : NO), the operation returns to Step S 1101 . In a case where the trigger operation on the side surface is detected (S 1101 : YES), the control unit  150  causes the photographic application to stand by for a predetermined period (S 1102 ). Then, the control unit  150  causes the photographic application to execute the image photographing processing (S 1103 ). Then, the control unit  150  determines a region to receive an operation by an operating finger on the basis of a height on the display screen, the height corresponding to a detection position at which the trigger operation is executed and which is detected by the sensor unit  110  in Step S 1101  (S 1104 ). 
     Then, the control unit  150  causes the region on the display  160 , which region is determined in Step S 1104 , to display a preview image of the image photographed in Step S 1103  (S 1105 ). Then, it is determined whether the sensor unit  110  detects an operation on the preview image displayed on the display screen of the information processing terminal  10  (S 1106 ). In a case where the sensor unit  110  detects an operation on the preview image (S 1106 : YES), the control unit  150  displays the image photographed in S 1103  on the display screen (S 1107 ), and the operation is ended. 
     On the one hand, in a case where the sensor unit  110  does not detect an operation on the preview image (S 1106 : NO), it is determined whether the sensor unit  110  detects an operation on the side surface of the information processing terminal  10  (S 1108 ). In a case where the sensor unit  110  detects an operation on the side surface (S 1108 : YES), the control unit  150  hides the preview image (S 1110 ), and the operation is ended. On the one hand, in a case where the sensor unit  110  does not detect an operation on the side surface (S 1108 : NO), the control unit  150  determines whether a certain period elapses after the preview image is displayed in Step S 1105  (S 1109 ). In a case where the certain period does not elapse (S 1109 : NO), the operation returns to Step S 1106 . On the one hand, in a case where the certain period elapses (S 1109 : YES), the control unit  150  hides the preview image (S 1110 ), and the operation is ended. 
     Next, an example of a flow of a moving image photographing operation by the photographic application according to the present embodiment will be described.  FIG. 13  is a view for describing an example of a flow of a moving image photographing operation by the photographic application according to the present embodiment. 
     Referring to  FIG. 13 , it is determined whether the sensor unit  110  detects a trigger operation on the side surface of the information processing terminal  10  in a state in which the photographic application is active on the information processing terminal  10  (S 1201 ). In a case where the sensor unit  110  does not detect the trigger operation (S 1201 : NO), the operation returns to Step S 1201 . In a case where the sensor unit  110  detects the trigger operation (S 1201 : YES), the control unit  150  causes the photographic application to stand by for a predetermined period (S 1202 ). Then, a region to receive an operation by an operating finger is determined on the basis of a height on the display screen, the height corresponding to a detection position at which the trigger operation is executed and which is detected by the sensor unit  110  in Step S 1201  (S 1203 ). 
     Then, the control unit  150  causes the photographic application to start the moving image photographing processing (S 1204 ). Then, the control unit  150  causes a controller to be displayed on the region determined in Step S 1203  (S 1205 ). Then, it is determined whether the sensor unit  110  detects an operation of ending the photographing by a predetermined operation on the side surface, an operation on a predetermined display region of the controller, or the like (S 1206 ). In a case where the sensor unit  110  does not detect the operation of ending the photographing (S 1206 : NO), the operation returns to Step S 1206 . On the one hand, in a case where the sensor unit  110  detects the operation of ending the photographing (S 1206 : YES), the control unit  150  causes the photographic application to end the moving image photographing processing started in Step S 1204  (S 1207 ). 
     Then, the control unit  150  causes the region determined in Step S 1203  to display a preview image of the moving image photographed by the photographic application in Step S 1204  to Step S 1207  (S 1208 ). Then, the sensor unit  110  determines whether a subsequent operation is detected with respect to the preview image displayed on the display screen of the information processing terminal  10  (S 1209 ). In a case where the sensor unit  110  detects the subsequent operation on the preview image (S 1209 : YES), the control unit  150  displays the moving image photographed between Step S 1205  and Step S 1207  on the display screen (S 1210 ), and the operation is ended. 
     On the one hand, in a case where the sensor unit  110  does not detect the subsequent operation on the preview image (S 1209 : NO), it is determined whether an operation is detected on the side surface of the information processing terminal  10  (S 1211 ). In a case where the operation on the side surface is detected by the sensor unit  110  (S 1211 : YES), the control unit  150  hides the preview image (S 1213 ), and the operation is ended. On the one hand, in a case where the operation on the side surface is not detected (S 1211 : NO), the control unit  150  determines whether a certain period elapses since the preview image is displayed in Step S 1105  (S 1212 ). In a case where the certain period does not elapse (S 1212 : NO), the operation returns to Step S 1209 . On the one hand, in a case where the certain period elapses (S 1212 : YES), the control unit  150  hides the preview image (S 1213 ), and the operation is ended. 
     Next, an example of a flow of an operation of determining a region to receive an operation according to the present embodiment will be described.  FIG. 14  is a view for describing an example of a flow of an operation of limiting a region to receive an operation according to the present embodiment. 
     Referring to  FIG. 14 , first, the sensor unit  110  detects a finger of a user on the side surface of the information processing terminal  10  (S 1301 ). Then, it is determined whether the sensor unit  110  detects a trigger operation on the side surface in Step S 1301  (S 1302 ). In a case where the sensor unit  110  does not detect the trigger operation (S 1302 : NO), the operation returns to Step S 1301 . In a case where the sensor unit  110  detects the trigger operation (S 1302 : YES), the control unit  150  determines a height on the side surface which height corresponds to a detection position of the trigger operation (S 1303 ). Then, the control unit  150  limits a region to receive an operation on the side surface on the basis of the height determined in Step S 1303  and a position of a finger of the user (S 1304 ). That is, an operable side surface is set. 
     4. EXAMPLE OF HARDWARE CONFIGURATION 
     Next, an example of a hardware configuration of the information processing terminal  10  according to an embodiment of the present disclosure will be described.  FIG. 15  is a block diagram illustrating an example of a hardware configuration of an information processing terminal  10  according to an embodiment of the present disclosure. Referring to  FIG. 15 , the information processing terminal  10  includes, for example, a processor  871 , a ROM  872 , a RAM  873 , a host bus  874 , a bridge  875 , an external bus  876 , an interface  877 , an input device  878 , an output device  879 , a storage  880 , a drive  881 , a connection port  882 , and a communication device  883 . Note that the hardware configuration described here is an example, and a part of the components may be omitted. Also, a component other than the components described here may be further included. 
     (Processor  871 ) 
     The processor  871  functions, for example, as an arithmetic processing device or a control device, and controls the overall operation of each component or a part thereof on the basis of various programs recorded in the ROM  872 , the RAM  873 , the storage  880 , or a removable recording medium  901 . 
     (ROM  872  and RAM  873 ) 
     The ROM  872  is a means to store a program read by the processor  871 , data used for calculation, and the like. The RAM  873  temporarily or permanently stores, for example, a program read by the processor  871 , various parameters that appropriately change in execution of the program, and the like. 
     (Host Bus  874 , Bridge  875 , External Bus  876 , and Interface  877 ) 
     The processor  871 , ROM  872 , and RAM  873  are connected to each other, for example, via the host bus  874  capable of high-speed data transmission. On the one hand, the host bus  874  is connected to the external bus  876 , which has a relatively low data transmission rate, via the bridge  875 , for example. Also, the external bus  876  is connected to various components via the interface  877 . 
     (Input Device  878 ) 
     As the input device  878 , for example, a mouse, a keyboard, a touch panel, a button, a switch, a lever, or the like is used. Furthermore, there is a case where a remote controller (hereinafter, remote controller) capable of transmitting a control signal by using infrared rays or other radio waves is used as the input device  878 . Also, the input device  878  includes a voice input device such as a microphone. 
     (Output Device  879 ) 
     The output device  879  is a device that can visually or audibly notify a user of acquired information and is, for example, a display device such as a cathode ray tube (CRT), an LCD, or an organic EL, an audio output device such as a speaker or headphone, a printer, a mobile phone, a facsimile, or the like. Also, the output device  879  according to the present disclosure includes various vibration devices capable of outputting tactile stimulation. 
     (Storage  880 ) 
     The storage  880  is a device to store various kinds of data. As the storage  880 , for example, a magnetic storage device such as a hard disk drive (HDD), a semiconductor storage device, an optical storage device, a magneto-optical storage device, or the like is used. 
     (Drive  881 ) 
     The drive  881  is a device to read information recorded on the removable recording medium  901  such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, or to write information on the removable recording medium  901 . 
     (Removable Recording Medium  901 ) 
     The removable recording medium  901  is, for example, a DVD medium, a Blu-ray (registered trademark) medium, an HD DVD medium, various semiconductor storage media, or the like. Obviously, the removable recording medium  901  may be, for example, an IC card equipped with a non-contact type IC chip, an electronic device, or the like. 
     (Connection Port  882 ) 
     The connection port  882  is a port to connect an external connection device  902  and is, for example, a universal serial bus (USB) port, an IEEE 1394 port, a small computer system interface (SCSI), an RS-232C port, an optical audio terminal, or the like. 
     (External Connection Device  902 ) 
     The external connection device  902  is, for example, a printer, a portable music player, a digital camera, a digital video camera, an IC recorder, or the like. 
     (Communication Device  883 ) 
     The communication device  883  is a communication device for connection to a network and is, for example, a communication card for a wired or wireless LAN, Bluetooth (registered trademark), or a wireless USB (WUSB), a router for optical communication, a router for an asymmetric digital subscriber line (ADSL), a modem for various kinds of communication, or the like. 
     5. CONCLUSION 
     As described above, an information processing terminal  10  according to an embodiment of the present disclosure has a function of determining a region to receive an operation on a display screen and a side surface on the basis of a detection position of an operating finger on the side surface. With such a function, it becomes possible to reduce a burden of an operation related to a small terminal that includes a touch panel and that is used with one hand. 
     Preferred embodiments of the present disclosure have been described above in detail with reference to the accompanying drawings. However, the technical scope of the present disclosure is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field of the present disclosure can come up with various changes or modifications within the scope of the technical idea described in claims. Obviously, it is understood that these also belong to the technical scope of the present disclosure. 
     Also, the effects described in the present description are merely descriptions or examples, and are not limitations. That is, the technology according to the present disclosure may have other effects that are apparent to those skilled in the art from a description of the present description in addition to or instead of the above effects. 
     Note that the following configurations also belong to the technical scope of the present disclosure. 
     (1) An information processing device comprising: 
     a control unit that determines, on the basis of a detection position of an operating finger of a user on a side surface with respect to a display screen, a region to display predetermined information on the display screen, and that determines, on the basis of the detection position, a region to receive an operation by the operating finger from a region that is a combination of the display screen and the side surface. 
     (2) The information processing device according to (1), wherein 
     the control unit determines a region to display predetermined information on the display screen on the basis of the detection position of the operating finger executing a trigger operation on the side surface, and determines, on the basis of the detection position, a region to receive a subsequent operation by the operating finger from the region that is the combination of the display screen and the side surface. 
     (3) The information processing device according to (2), wherein 
     the control unit limits, on the basis of the detection position of the operating finger that executes the trigger operation on the side surface, the region to receive the subsequent operation to a region assumed to be reached by the operating finger. 
     (4) The information processing device according to (2) or (3), wherein 
     the predetermined information is execution information related to function execution of an application, and 
     in a case where the trigger operation by the operating finger is detected on the side surface, the control unit determines a region to display the execution information on the basis of the detection position of the trigger operation. 
     (5) The information processing device according to (4), wherein 
     the execution information includes an icon related to at least one application specified on the basis of a predetermined criterion, and 
     the control unit determines a region to display the icon on the basis of the detection position of the operating finger that executes the trigger operation on the side surface. 
     (6) The information processing device according to (5), wherein 
     the control unit determines a region to display the icon on the basis of the detection position of the operating finger that executes the trigger operation on the side surface, and determines, as the region to receive the subsequent operation by the operating finger, a region within a predetermined range with the detection position as a reference. 
     (7) The information processing device according to any one of (4) to (6), wherein 
     the control unit causes the application to execute predetermined processing on the basis of the subsequent operation by the operating finger on the region to receive the operation. 
     (8) The information processing device according to (7), wherein, 
     the application is a photographic application, and 
     the control unit causes the photographic application to execute photographing processing on the basis of the operation by the operating finger on the side surface. 
     (9) The information processing device according to (8), wherein, 
     the execution information includes a preview image of an image photographed by the photographic application, and 
     the control unit causes the preview image to be displayed on the basis of the detection position of the operating finger that executes the trigger operation on the side surface. 
     (10) The information processing device according to (8) or (9), wherein 
     the execution information includes a controller that controls the photographing processing, and 
     the control unit causes the controller to be displayed on the basis of the detection position of the operating finger that executes the trigger operation on the side surface. 
     (11) The information processing device according to any one of (8) to (10), wherein 
     the control unit causes the photographic application to execute the photographing processing after a predetermined period elapses from the detection of the trigger operation executed by the operating finger on the side surface. 
     (12) The information processing device according to any one of (2) to (11), wherein, 
     the control unit determines the region to receive the subsequent operation on the side surface on the basis of the detection position of a finger of the user on the side surface. 
     (13) The information processing device according to (12), wherein, 
     the control unit determines, on the basis of the detection position of the finger of the user on the side surface, a side surface on which it is assumed that the operation is executed by the operating finger among a plurality of side surfaces as the region to receive the subsequent operation on the side surface. 
     (14) The information processing device according to (1), wherein 
     the control unit limits the region to receive the operation by the operating finger on the side surface with a height at the detection position of the operating finger on the side surface as a reference. 
     (15) The information processing device according to any one of (1) to (14), further comprising 
     a touch panel. 
     (16) The information processing device according any one of to (1) to (15), wherein 
     the device is a mobile terminal. 
     (17) An information processing method comprising: 
     determining, on the basis of a detection position of an operating finger of a user on a side surface with respect to a display screen, a region to display predetermined information on the display screen, and determining, on the basis of the detection position, a region to receive an operation by the operating finger from a region that is a combination of the display screen and the side surface, 
     the determining being performed by a processor. 
     REFERENCE SIGNS LIST 
     
         
         
           
               10  information processing terminal 
               110  sensor unit 
               120  input unit 
               130  storage unit 
               140  camera 
               150  control unit 
               160  display 
               170  specification unit 
               180  communication unit 
               20  network