Portable terminal device and method for controlling power of portable terminal device
A portable terminal device comprising: a control section that controls power supplied to a display section; and an acceleration detection section including a comparator that outputs a signal when the power is supplied to the display section even in a power-off state and acceleration equal to or greater than a predetermined value is detected, wherein the control section starts supplying the power to the display section, if there is no vibration during a predetermined time, after detecting the acceleration equal to or greater than the predetermined value with the acceleration detection section.
1. An imaging device, comprising:
a) an imaging sensor photoelectrically converting an object image and outputting image data;
b) a display;
c) a recording medium recording the image data;
d) a movement detection section that detects an attitude change of the imaging device; and
e) a controller causing the object image to be displayed on the display based on the recorded image data,
wherein, responsive to the movement detection section detecting the attitude change of the imaging device, the controller starts continuous shooting, regardless of whether or not a shutter release button of the imaging device is pressed, for recording a series of still images corresponding to the image data in the recording medium before displaying the object image on the display.
2. The imaging device according to claim 1 , wherein the controller continues the continuous shooting when causing the display to start displaying.
3. The imaging device according to claim 1 , wherein the controller turns off imaging by the imaging sensor when causing the display not to start displaying.
4. The imaging device according to claim 1 , further comprising:
f) a tilt detection sensor detecting tilt information about a tilt state of the imaging device,
wherein the controller records the tilt information together with each of the still images when recording the series of still images corresponding to the image data.
5. The imaging device according to claim 4 ,
wherein a tilt of an image in the image data is corrected using the tilt information before it is displayed on the display.
6. The imaging device according to claim 1 , further comprising:
f) a tilt detection sensor detecting tilt information about a tilt state of the imaging device,
wherein the controller determines whether or not to display the object image on the display based on the tilt information.
7. The imaging device according to claim 1 , wherein the controller deletes the image data obtained by the continuous shooting when being switched to a reproduction mode.
8. The imaging device according to claim 1 , further comprising:
f) a photographic lens for forming the object image,
wherein a focal length of the photographic lens is set wide when power of the imaging device is turned on.
9. The imaging device according to claim 1 , further comprising:
f) a photographic lens for forming the object image,
wherein a focus position of the photographic lens is set to a predetermined initial value when power of the imaging device is turned on.
10. The imaging device according to claim 9 wherein the predetermined initial value is between 2 and 3 meters.
11. The imaging device according to claim 1 further comprising:
f) the shutter release button,
wherein the continuous shooting is completed responsive to a user operation of the shutter release button.
12. The imaging device according to claim 1 wherein the controller deletes older images in the series of still images corresponding to the image data recorded in the recording medium when a predetermined memory capacity is reached.
13. The imaging device according to claim 1 wherein the controller starts continuous shooting responsive to a user interaction with respect to the imaging device.
14. The imaging device according to claim 1 wherein the controller starts continuous shooting responsive to a user interaction with respect to the imaging device reflecting an intention of the user to begin image capture, the user interaction including tilting the imaging device from a first orientation and then returning the imaging device towards the first orientation.
15. A control method for an imaging device, comprising:
a) detecting whether an attitude change of the imaging device has occurred; and
b) responsive to detecting that the attitude change of the imaging device has occurred,
(1) repeatedly photoelectrically converting, regardless of whether or not a shutter release button of the imaging device is pressed, an object image to output image data corresponding to a series of still images,
(2) recording the image data in a recording medium, and
(3) after repeatedly photoelectrically converting and recording, displaying the object image on a display based on the recorded image data.
16. The control method for an imaging device according to claim 15 , wherein the continuous shooting is continued when the display is caused to start displaying.
17. The control method for an imaging device according to claim 15 , wherein imaging is turned off when the display is caused not to start displaying.
18. The control method for an imaging device according to claim 15 , further comprising:
c) detecting tilt information about a tilt state of the imaging device, and
d) recording the tilt information together with the image data when recording the continuous shooting.
19. The control method for an imaging device according to claim 18 , further comprising:
e) correcting a tilt of an image in the image data using the tilt information.
20. The control method for an imaging device according to claim 15 , comprising:
c) detecting tilt information about a tilt state of the imaging device; and
d) determining whether or not to display the object image on the display section based on the tilt information.
21. The control method for an imaging device according to claim 15 , wherein a control section deletes the image data obtained by the continuous shooting when being switched to a reproduction mode.
22. The control method for an imaging device according to claim 15 , further comprising:
c) setting a focal length of a photographic lens of the imaging device wide when power of the imaging device is turned on.
23. The control method for an imaging device according to claim 15 , further comprising:
c) setting a focus position of a photographic lens of the imaging device to a predetermined initial value when power of the imaging device is turned on.
24. The control method for an imaging device according to claim 23 wherein the predetermined initial value is between 2 and 3 meters.
25. The control method for an imaging device according to claim 15 further comprising:
c) completing the continuous shooting responsive to a user operation of a shutter release button of the imaging device.
26. The control method for an imaging device according to claim 15 further comprising:
c) deleting older images in the series of still images corresponding to the image data recorded in the recording medium when a predetermined memory capacity is reached.