ELECTRONIC APPARATUS, CONTROL PROGRAM, AND CONTROL METHOD

• US 20130120256A1
• Filed: 12/12/2012
• Published: 05/16/2013
• Est. Priority Date: 07/05/2010
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: ISHIDERA, Nobutaka, OHKUSA, Mutsumi
• Granted Patent: US 9,075,454 B2
• Time in Patent Office: Days
• US Class Current: 345/158
• CPC Class Codes: G06F 3/033 Pointing devices displaced or positioned by the user , e.g. mice, trackballs, pens or joysticks; Accessories therefor digitisers characterised by the transducing means G06F3/041
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 3/20 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
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/36 characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory

Abstract

A control unit changes a display orientation of a display screen according to a tilt direction of a display unit when a display orientation detection unit detects the display orientation of the display screen coincides with, among orientations in which the display screen is allowed to be displayed, an orientation closest to a vertical downward direction in a state where the detected display orientation of the display screen is not changed according to the tilt direction of the display unit. The display orientation detection unit detects the display orientation of the display screen displayed on the display unit. A tilt detection unit detects the tilt direction of the display unit, which displays information, in relation to the vertical downward direction.

Claims

1. An electronic apparatus comprising:

a tilt sensor configured to detect a tilt direction of a display, which displays information, in relation to a vertical downward direction; and

a processor configured to perform a procedure including;

acquiring, from the tilt sensor, a detection result of the tilt direction of the display and detecting a display orientation of a display screen displayed on the display; and

changing the display orientation of the display screen according to the tilt direction of the display when the display orientation of the display screen is detected to coincide with, among orientations in which the display screen is allowed to be displayed, an orientation closest to the vertical downward direction in a state where the display orientation of the display screen is not changed according to the tilt direction of the display.

2. The electronic apparatus according to claim 1, further comprising a memory configured to store control information, wherein

the procedure further includes:

generating the control information which indicates a previous latest display orientation which is a display orientation most recently changed according to the tilt direction of the display and storing the generated control information in the memory; and

making a transition to the state, where the display orientation of the display screen is not changed according to the tilt direction of the display, when the detected display orientation of the display screen does not coincide with the previous latest display orientation indicated by the stored control information in a state where the display orientation of the display screen is changed according to the tilt direction of the display.

3. The electronic apparatus according to claim 1, wherein

the procedure further includes making a transition to the state, where the display orientation of the display screen is not changed according to the tilt direction of the display when a state transition operation for making a transition to the state, where the display orientation of the display screen is not changed according to the tilt direction of the display, is received in a state where the display orientation of the display screen is changed according to the tilt direction of the display.

4. The electronic apparatus according to claim 1, wherein

the procedure further includes changing the display orientation of the display screen when a display orientation change operation for changing the display orientation of the display screen is received.

5. The electronic apparatus according to claim 1, further comprising a memory configured to store detected tilt information which indicates a history of angles indicating tilt directions detected by the tilt sensor at a predetermined number of past time points, wherein

the procedure further includes making a transition to a state where the display orientation of the display screen is changed according to the tilt direction of the display when, based on the stored detected tilt information, the angles are determined to have exceeded a predetermined threshold a predetermined number of times or more.

6. The electronic apparatus according to claim 1, further comprising a memory configured to store detected tilt information which indicates a history of angles indicating tilt directions detected by the tilt sensor at a predetermined number of past time points, wherein

the procedure further includes making a transition to the state, where the display orientation of the display screen is not changed according to the tilt direction of the display, when, based on the stored detected tilt information, the angles are determined not to have exceeded a predetermined threshold.

7. The electronic apparatus according to claim 1, further comprising a memory configured to store application information having a rotation resume flag which indicates whether to resume, at closing of a corresponding application, changing the display orientation of the display screen, wherein

the procedure further includes changing the display orientation of the display screen according to the tilt direction of the display at the closing of the application when the rotation resume flag of the application information has been enabled.

8. The electronic apparatus according to claim 1, wherein

the procedure further includes changing the display orientation of the display screen according to the tilt direction of the display at time of return from power-saving mode.

9. The electronic apparatus according to claim 1, wherein

the procedure further includes changing the display orientation of the display screen according to the tilt direction of the display when a transition is made from logoff mode to logon mode.

10. The electronic apparatus according to claim 1, wherein

the procedure further includes changing the display orientation of the display screen according to the tilt direction of the display when a user switch is performed.

11. A computer-readable storage medium storing a computer program, the computer program causing a computer to perform a procedure comprising:

acquiring a detection result of a tilt direction of a display, which displays information, in relation to a vertical downward direction and detecting a display orientation of a display screen displayed on the display; and

changing the display orientation of the display screen according to the tilt direction of the display when the display orientation of the display screen is detected to coincide with, among orientations in which the display screen is allowed to be displayed, an orientation closest to the vertical downward direction in a state where the display orientation of the display screen is not changed according to the tilt direction of the display.

12. A control method comprising:

detecting a tilt direction of a display, which displays information, in relation to a vertical downward direction and detecting, by a processor, a display orientation of a display screen displayed on the display; and

changing, by the processor, the display orientation of the display screen according to the tilt direction of the display when detecting that the display orientation of the display screen coincides with, among orientations in which the display screen is allowed to be displayed, an orientation closest to the vertical downward direction in a state where the display orientation of the display screen is not changed according to the tilt direction of the display.