WO2011104837A1 - 携帯端末、動作間隔設定方法及びプログラム - Google Patents
携帯端末、動作間隔設定方法及びプログラム Download PDFInfo
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- WO2011104837A1 WO2011104837A1 PCT/JP2010/052941 JP2010052941W WO2011104837A1 WO 2011104837 A1 WO2011104837 A1 WO 2011104837A1 JP 2010052941 W JP2010052941 W JP 2010052941W WO 2011104837 A1 WO2011104837 A1 WO 2011104837A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0346—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
- G09G5/32—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory with means for controlling the display position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
- G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
- G06F2200/161—Indexing scheme relating to constructional details of the monitor
- G06F2200/1614—Image rotation following screen orientation, e.g. switching from landscape to portrait mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
- G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
- G06F2200/163—Indexing scheme relating to constructional details of the computer
- G06F2200/1637—Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0492—Change of orientation of the displayed image, e.g. upside-down, mirrored
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2354/00—Aspects of interface with display user
Definitions
- This technology relates to display control technology in mobile terminals.
- Mobile terminals such as mobile phones, PDAs (Personal Digital Assistants), and smartphones often have a rectangular flat plate shape in order to make it easy for users to hold and operate them. Therefore, the shape of the display screen is often rectangular.
- the shape of content such as a web page displayed on the display screen does not necessarily match the shape of the display screen, it may not be displayed properly depending on the content. For example, as shown in FIG. 1, when the display screen has a shape that is long in the vertical direction of the mobile terminal, if content that is long in the horizontal direction is displayed, a part of the content is not displayed on the display screen.
- the power consumption becomes very large. In the case of a portable terminal, it is not desirable that the battery duration is shortened. On the other hand, if the power consumption is reduced by simply lowering the frequency of imaging or image analysis, there is a problem that the response becomes slow.
- an object of the present technology is to provide a technology for reducing power consumption in display control in a portable terminal.
- the mobile terminal includes an inclination measurement unit that measures the inclination of the mobile terminal, a change unit that changes a display direction of content to be displayed on the display screen of the mobile terminal according to a state of a user holding the mobile terminal, and a change An operation interval setting unit that sets the operation interval of the unit based on a change with time of the inclination measured by the inclination measurement unit, and an operation control unit that causes the change unit to operate at the operation interval set by the operation interval setting unit.
- FIG. 1 is a diagram for explaining a problem of the prior art.
- FIG. 2 is a functional block diagram of the mobile terminal according to the embodiment of the present technology.
- FIG. 3 is a diagram illustrating a process flow of the operation interval determination process.
- FIG. 4 is a diagram illustrating a process flow of the operation interval determination process.
- FIG. 5 is a diagram illustrating a process flow of the operation interval determination process.
- FIG. 6 is a diagram illustrating a process flow of the operation interval determination process.
- FIG. 7 is a diagram illustrating a processing flow of the display direction control processing.
- FIG. 8 is a functional block diagram of the computer.
- FIG. 2 shows a functional block diagram of the mobile terminal 1 according to the embodiment of the present technology.
- the mobile terminal 1 which is a mobile phone, a PDA, a smartphone, or a small personal computer includes an inclination sensor 101, an inclination data storage unit 103, an operation interval setting unit 105, a time measurement unit 107, and an operation interval data storage unit 109.
- the operation interval setting unit 105 includes an inclination change detection unit 1051, a quantized inclination value storage unit 1053, a state data storage unit 1055, a state monitoring unit 1057, and a setting unit 1059.
- the tilt sensor 101 measures the tilt of the mobile terminal 1 and stores it in the tilt data storage unit 103.
- the inclination change detection unit 1051 calculates a quantized inclination value based on the data stored in the inclination data storage unit 103, or based on the data stored in the quantized inclination value storage unit 1053 and the state data storage unit 1055. Processing is performed, and processing for notifying the status monitoring unit 1057 of the processing result is performed.
- the state monitoring unit 1057 performs processing for updating the data stored in the state data storage unit 1055, notifying the setting unit 1059 that the data stored in the state data storage unit 1055 has been updated, and the like.
- the setting unit 1059 determines the operation interval based on the notification from the state monitoring unit 1057 and stores the operation interval data in the operation interval data storage unit 109.
- the time measuring unit 107 outputs time data to the operation interval setting unit 105 and the operation control unit 111.
- the motion control unit 111 controls the motion intervals of the camera 113, the face direction specifying unit 117, and the display direction control unit 121 based on the data stored in the motion interval data storage unit 109.
- the camera 113 captures a user who operates the mobile terminal 1 and stores the user image in the image storage unit 115.
- the face direction specifying unit 117 analyzes the image stored in the image storage unit 115, specifies the relative direction of the user's face with respect to a predetermined direction of the mobile terminal 1, and analyzes the analysis result as the analysis result storage unit 119. To store.
- the display direction control unit 121 specifies the display direction of the content to be displayed on the display screen of the mobile terminal 1 based on the data stored in the analysis result storage unit 119 so that the content is displayed in the specified display direction.
- the display control unit 123 is controlled. The display control unit 123 changes the display direction of the content displayed on the display screen of the mobile terminal 1.
- the tilt sensor 101 is an acceleration sensor, a geomagnetic sensor, a gyro sensor, or the like.
- the tilt sensor 101 measures, for example, the tilt angle of two or more coordinate axes centered on the mobile terminal as the tilt of the mobile terminal 1. Note that the tilt sensor 101 is controlled to perform measurement at a constant interval of, for example, about 20 milliseconds.
- the time measuring unit 107 measures the elapsed time by counting up the counter value every time a predetermined unit of time (for example, 10 milliseconds) elapses.
- a counter including a crystal resonator is used for the time measuring unit 107.
- the camera 113 is an image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor or a CCD (Charge-Coupled Device) image sensor provided on the same surface as the display screen of the mobile terminal 1. Normally, when the user operates the mobile terminal, the user sees the display screen of the mobile terminal, so that the user's image captured by the camera 113 naturally includes the area of the user's face.
- CMOS Complementary Metal Oxide Semiconductor
- CCD Charge-Coupled Device
- the face direction identification unit 117 performs a process of identifying the face direction after identifying the face position in the image by performing face detection.
- face detection for example, characteristic patterns such as eyes, nose, and mouth included in the human skin color region in the image are collated with a standard pattern, and when they are in a specific positional relationship, the face is determined.
- a method may be used.
- a method may be used in which a standard face pattern is prepared and the faceness is determined by performing pattern matching on the human skin color area in the image.
- a method for specifying the face direction for example, a method is used in which the probability that the angle is the correct angle is calculated while rotating the image by a certain angle, and the angle with the highest probability is specified as the face direction. That's fine.
- the display direction control unit 121 identifies the display direction of the content based on the analysis result regarding the face direction stored in the analysis result storage unit 119. For example, the display direction is determined such that the direction of the user's head in the image matches the upward direction of the content. As a result, the content is displayed in a display direction preferable for the user.
- tilt sensor 101 the time measuring unit 107, the camera 113, the face direction specifying unit 117, and the display direction control unit 121 are conventionally known and will not be described in further detail.
- the tilt sensor 101 measures the tilt of the mobile terminal 1 and stores the measured value in the tilt data storage unit 103 (FIG. 3: step S11). Then, the inclination change detection unit 1051 calculates a quantized inclination value H from the inclination data stored in the inclination data storage unit 103, and stores it in a storage device such as a main memory (step S13).
- the quantization gradient value will be described.
- the direction in which the mobile terminal 1 is tilted with respect to the direction of gravity is specified from the tilt data stored in the tilt data storage unit 103, and a value obtained by quantizing the specified direction is obtained. .
- four values of “0”, “1”, “2”, and “3” are used. If the direction in which the mobile terminal 1 is tilted is 0 ° to 89 °, the quantization tilt value is “0”, and if it is 90 ° to 179 °, the quantization tilt value is “1”. When the angle is 180 ° to 269 °, the quantization gradient value is “2”. When the angle is 270 ° to 359 °, the quantization gradient value is “3”.
- a change in the quantized inclination value is detected as an inclination change event. This is because the user often does not need to change the display direction when the display screen is slightly inclined.
- the inclination change detection unit 1051 reads the state data from the state data storage unit 1055, and determines whether the state data is “0” (step S15).
- the state data “0” indicates that the state of the mobile terminal 1 is stable. If the status data is “0” (step S15: Yes route), the process proceeds to step S19 in FIG.
- step S15 when the state data is not “0” (step S15: No route), the inclination change detection unit 1051 determines whether the state data is “1” (step S17).
- the state data “1” indicates that the state immediately after the inclination change event is detected. If the status data is “1” (step S17: Yes route), the process proceeds to step S31 in FIG.
- step S17 No route
- the status data is “2”
- the process proceeds to step S51 in FIG.
- the status data “2” indicates that a certain time has elapsed after the inclination change event is detected.
- the inclination change detection unit 1051 reads the quantization inclination value H p from the quantization inclination value storage unit 1053, and determines whether or not it is equal to the quantization inclination value H calculated in step S13 (step S13). S19).
- the quantization gradient value Hp is the previously calculated quantization gradient value. In step S19, it is determined whether an inclination change event has occurred by comparing the quantized inclination values.
- step S19: Yes route If H p is equal to H (step S19: Yes route), the process proceeds to step S29. On the other hand, when H p is not equal to H (step S19: No route), the inclination change detection unit 1051 notifies the state monitoring unit 1057 that an inclination change event has been detected. Further, the state monitoring unit 1057 causes the time measuring unit 107 to start measuring the stable monitoring time (step S21).
- the stability monitoring time is a time for determining whether the state of the mobile terminal 1 is stable.
- step S23 the state monitoring unit 1057 changes the state data stored in the state data storage unit 1055 from “0” to “1” (step S23). This is because a tilt change event has been detected and is no longer in a stable state.
- step S23 the state monitoring unit 1057 notifies the setting unit 1059 that the state data has been changed from “0” to “1”.
- step S25 the setting unit 1059 changes the operation interval T stored in the operation interval data storage unit 109 to t 1 (step S25).
- step S25 since the operation interval T when status data is "0", such should be set to t 1, step S25 may be skipped.
- the operation interval T will be described.
- t 1 is set when it is desired to suppress power consumption
- either the t 2 to set when you want frequently and controls the display direction is used.
- t 1 is set longer than t 2, infinity (i.e., does not operate) may be. If t 1 is set in this way, the display direction control is not performed much (or not performed at all) when the user uses the mobile terminal 1 in the same posture for a long time without holding the mobile terminal 1. Power consumption can be greatly reduced.
- t 2 is set to about 20 to 200 milliseconds, for example, the user can obtain an almost instantaneous response.
- t 1 is set as the operation interval T. This is because, since the state of the mobile terminal 1 is stable, the frequency of controlling the display direction is reduced and the power consumption is suppressed. Even when the state data is “1”, t 1 is set as the operation interval T. This is because the state of the portable terminal 1 is not stable, and even if the display direction is changed, there is a possibility that it must be changed again immediately. Therefore, it is not efficient to increase the frequency of the display direction control.
- t 2 is set as the operation interval T. This is because the state of the portable terminal 1 is stable, so that the operation interval is shortened and the display direction can be changed quickly.
- the inclination change detection unit 1051 changes the quantization inclination value stored in the quantization inclination value storage unit 1053 to the quantum inclination value calculated in Step S13 (Step S27). If the process should not be terminated (step S29: No route), the process returns to the process of step S11 via the terminal D. When the process is to be ended (for example, when an instruction to end or stop the process is given) (step S29: Yes route), the process ends.
- the inclination change detection unit 1051 reads the quantization inclination value H p from the quantization inclination value storage unit 1053 and determines whether or not it is equal to the quantization inclination value H calculated in step S13. (Step S31).
- H p is not equal to H (step S31: No route)
- the inclination change detection unit 1051 notifies the state monitoring unit 1057 that the inclination change event has been detected.
- the state monitoring unit 1057 causes the time measuring unit 107 to start measuring the stable monitoring time (step S33). The process proceeds to step S27 in FIG.
- step S31 Yes route
- the inclination change detection unit 1051 notifies the state monitoring unit 1057 that an inclination change event has not been detected. Then, the state monitoring unit 1057 determines whether or not the stable monitoring time during measurement in the time measuring unit 107 is equal to or greater than a predetermined threshold (step S35). If it is not equal to or greater than the predetermined threshold value (step S35: No route), it is considered that the state of the mobile terminal 1 is not yet stable, so the process proceeds to step S27 in FIG.
- step S35 Yes route
- the state monitoring unit 1057 causes the time measurement unit 107 to start measuring the monitoring enhancement time because it is considered that the state of the mobile terminal 1 is stable ( Step S37). Since the frequency of the display direction control is high during the monitoring enhancement time, the display direction control can be quickly performed with respect to a change in the user's state.
- step S39 the state monitoring unit 1057 changes the state data stored in the state data storage unit 1055 from “1” to “2” (step S39). This is because the state of the mobile terminal 1 is considered stable.
- step S39 the state monitoring unit 1057 notifies the setting unit 1059 that the state data has been changed from “1” to “2”.
- the setting unit 1059, the operation interval T that is stored in the operation interval data storage unit 109 is changed from t 1 to t 2 (step S41). That is, the operation interval is shortened.
- the inclination change detection unit 1051 reads the quantization inclination value H p from the quantization inclination value storage unit 1053 and determines whether or not it is equal to the quantization inclination value H calculated in step S13. (Step S51).
- H p is not equal to H (step S51: No route)
- the inclination change detection unit 1051 notifies the state monitoring unit 1057 that the inclination change event has been detected. Then, the state monitoring unit 1057 causes the time measuring unit 107 to start measuring the stable monitoring time (step S53).
- step S55 the state monitoring unit 1057 changes the state data stored in the state data storage unit 1055 from “2” to “1” (step S55).
- step S55 the state monitoring unit 1057 notifies the setting unit 1059 that the state data has been changed from “2” to “1”.
- the setting unit 1059, the operation interval T that is stored in the operation interval data storage unit 109 is changed from t 2 to t 1 (step S57). That is, the operation interval is lengthened to reduce power consumption.
- step S51 Yes route
- the inclination change detection unit 1051 notifies the state monitoring unit 1057 that an inclination change event has not been detected. Then, the state monitoring unit 1057 determines whether or not the monitoring enhancement time being measured in the time measuring unit 107 is equal to or greater than a predetermined threshold (step S59). If it is not equal to or greater than the predetermined threshold (step S59: No route), the process proceeds to step S27 in FIG.
- step S59 when it is equal to or greater than the predetermined threshold (step S59: Yes route), the state monitoring unit 1057 changes the state data stored in the state data storage unit 1055 from “2” to “0” (step S61). .
- step S61 the state monitoring unit 1057 notifies the setting unit 1059 that the state data has been changed from “2” to “0”.
- the setting unit 1059, the operation interval T that is stored in the operation interval data storage unit 109 is changed from t 2 to t 1 (step S63). That is, the operation interval is lengthened. This is because it is not necessary to perform the display direction control frequently, so that the operation interval is lengthened and the power consumption is reduced. Then, the process proceeds to step S27 in FIG.
- the operation control unit 111 determines whether or not the elapsed time measured by the time measurement unit 107 exceeds the operation interval T stored in the operation interval data storage unit 109 (step S71). When the elapsed time does not exceed the operation interval T (step S71: No route), the process of step S71 is repeated.
- the motion control unit 111 controls the camera 113, the face direction specifying unit 117, and the display direction control unit 121 to start the motion.
- the camera 113 images the user who operates the portable terminal 1, and stores the user's image in the image storage unit 115 (step S73).
- the face direction specifying unit 117 analyzes the image stored in the image storage unit 115, specifies the relative direction of the user's face with respect to a predetermined direction of the mobile terminal 1, and stores the analysis result as the analysis result.
- the data is stored in the unit 119 (step S75).
- the display direction control unit 121 specifies the display direction of the content based on the data stored in the analysis result storage unit 119, and controls the display control unit 123 so that the content is displayed in the specified display direction. (Step S77).
- step S79 determines whether the process should be terminated. If the process should not be terminated (step S79: No route), the time measurement unit 107 is instructed to start measuring elapsed time, and the process returns to step S71. On the other hand, when the process should be terminated (for example, when the process is instructed to end or stop) (step S79: Yes route), the process is terminated.
- the present technology has been described above, but the present technology is not limited to this.
- the functional block diagram of the mobile terminal 1 described above does not necessarily correspond to an actual program module configuration.
- the processing order can be changed if the processing result does not change. Further, it may be executed in parallel.
- the configuration may be such that the tilt at the time when the display direction control is last performed is held, and the tilt change event is detected when there is a change of a certain value or more from the tilt.
- the display direction control may be performed based on the tilt measured by the tilt sensor 101.
- a portable terminal using such a technique is well known in the art and will not be described in detail here.
- the camera 113 when it takes time to set up or initialize the camera 113, the camera 113 is always kept operating, and only the operation intervals of the face direction specifying unit 117 and the display direction control unit 121 are controlled. May be.
- the portable terminal 1 includes a memory 2501 (storage unit), a CPU 2503 (processing unit), a hard disk drive (HDD) 2505, a display control unit 2507 connected to the display device 2509, and a removable disk.
- a 2511 drive device 2513, an input device 2515, a communication control unit 2517 for connecting to a network, and a sensor group 2521 are connected by a bus 2519.
- An OS (Operating System) and a control program for executing the processing in the present embodiment are stored in the HDD 2505, and are read from the HDD 2505 to the memory 2501 when executed by the CPU 2503. If necessary, the CPU 2503 controls a sensor group 2521 (an inclination sensor and a camera.
- a time measurement unit, etc. to acquire a necessary measurement value, and also displays a display control unit 2507, a drive device 2513, and communication control.
- the unit 2517 is controlled to perform necessary operations. Further, data in the middle of processing is stored in the memory 2501 and stored in the HDD 2505 if necessary.
- Such a computer realizes various functions as described above by organically cooperating hardware such as the CPU 2503 and the memory 2501 described above, the control program, and the OS.
- the mobile terminal changes the display direction of content to be displayed on the display screen of the mobile terminal in accordance with (A) an inclination measuring unit that measures the inclination of the mobile terminal, and (B) the state of the user holding the mobile terminal. And (C) an operation interval setting unit that sets an operation interval of the changing unit based on a change over time of the inclination measured by the inclination measuring unit, and (D) a changing unit is set by the operation interval setting unit. And an operation control unit that operates at an operation interval.
- the power consumed by the changing unit can be reduced.
- the changing unit described above includes an image acquisition unit that acquires an image of a user holding the mobile terminal, and an image acquired by the image acquisition unit, and is included in the image with respect to a predetermined direction of the mobile terminal.
- Direction specifying unit for specifying the relative direction of the user's face, and display direction control for changing the display direction of the content to be displayed on the display screen according to the relative direction of the user's face specified by the direction specifying unit May be included. If the relative direction of the user's face is known, the display direction preferable for the user can be known.
- the operation interval setting unit described above detects a tilt change event, and when the inclination changing event is detected by the detecting unit, A state monitoring unit that monitors whether a tilt change event is detected before the first time elapses after the tilt change event is detected, and a tilt change event is not detected even after the first time elapses A setting unit that shortens the operation interval by a predetermined time may be included. Changing the display direction frequently when the tilt is not stable is not efficient and consumes power wastefully, so that the operation interval is shortened after the tilt is stabilized.
- the state monitoring unit described above does not detect the tilt change event until the second time has elapsed after the first time has elapsed. If the inclination change event is not detected even after the second time elapses, the setting unit described above may return the operation interval to the original operation interval. When it is no longer necessary to operate at high frequency, the operation interval is restored to reduce power consumption.
- the setting unit described above returns the operation interval to the original operation interval, and the state monitoring unit described above performs the tilt change event.
- it may be monitored again whether an inclination change event is detected before the first time elapses after the detection. When the inclination is not stable, the operation interval is restored to reduce the power consumption.
- a program for causing the hardware to perform the processing described above, and the program can be read by a computer such as a flexible disk, a CD-ROM, a magneto-optical disk, a semiconductor memory, and a hard disk. It is stored in a possible storage medium or storage device. Note that data being processed is temporarily stored in a storage device such as a computer memory.
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Abstract
Description
Claims (7)
- 携帯端末であって、
前記携帯端末の傾きを計測する傾き計測部と、
前記携帯端末を保持するユーザの状態に応じて当該携帯端末の表示画面に表示すべきコンテンツの表示方向を変更する変更部と、
前記変更部の動作間隔を、前記傾き計測部により計測された傾きの経時変化に基づき設定する動作間隔設定部と、
前記変更部を、前記動作間隔設定部により設定された動作間隔で動作させる動作制御部と、
を有する携帯端末。 - 前記変更部が、
前記携帯端末を保持するユーザの画像を取得する画像取得部と、
前記画像取得部により取得された画像を解析し、前記携帯端末の所定の方向に対する、取得された前記画像に含まれるユーザの顔の相対的な方向を特定する方向特定部と、
前記方向特定部により特定されたユーザの顔の相対的な方向に応じて前記表示画面に表示すべきコンテンツの表示方向を変更する表示方向制御部と、
を有する請求項1記載の携帯端末。 - 前記動作間隔設定部が、
前記傾きが所定値以上変化した場合、傾き変化イベントとして検出する検出部と、
前記検出部により前記傾き変化イベントが検出された場合、当該傾き変化イベントが検出された後、第1の時間が経過するまでに前記傾き変化イベントが検出されるか監視する状態監視部と、
前記第1の時間が経過しても前記傾き変化イベントが検出されない場合、前記動作間隔を所定時間分短くする設定部と、
を有する請求項1又は2記載の携帯端末。 - 前記第1の時間が経過しても前記傾き変化イベントが検出されない場合、前記状態監視部が、前記第1の時間が経過した後、第2の時間が経過するまでに前記傾き変化イベントが検出されるか監視し、
前記第2の時間が経過しても前記傾き変化イベントが検出されない場合、前記設定部が、前記動作間隔を元の動作間隔に戻す
ことを特徴とする請求項3記載の携帯端末。 - 前記第2の時間が経過する前に前記傾き変化イベントが検出された場合、前記設定部が、前記動作間隔を元の動作間隔に戻し、
前記状態監視部が、前記傾き変化イベントが検出された後、前記第1の時間が経過するまでに前記傾き変化イベントが検出されるか再度監視する
ことを特徴とする請求項4記載の携帯端末。 - 携帯端末により実行される動作間隔設定方法であって、
前記携帯端末の傾きを計測するステップと、
前記携帯端末を保持するユーザの状態に応じて当該携帯端末の表示画面に表示すべきコンテンツの表示方向を変更する、前記携帯端末の変更部の動作間隔を、計測された前記傾きの経時変化に基づき設定するステップと、
前記変更部を、設定された前記動作間隔で動作させるステップと、
を含む動作間隔設定方法。 - 携帯端末に実行させるためのプログラムであって、
前記携帯端末を保持するユーザの状態に応じて当該携帯端末の表示画面に表示すべきコンテンツの表示方向を変更する、前記携帯端末の変更部の動作間隔を、前記携帯端末の傾きを計測する計測部から取得した傾きの経時変化に基づき設定するステップと、
前記変更部を、設定された前記動作間隔で動作させるステップと、
を実行させるためのプログラム。
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US9117391B2 (en) | 2015-08-25 |
US9311884B2 (en) | 2016-04-12 |
CN102770904A (zh) | 2012-11-07 |
JP5741568B2 (ja) | 2015-07-01 |
US20120313970A1 (en) | 2012-12-13 |
CN102770904B (zh) | 2015-04-08 |
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