Camera shake detection apparatus
First Claim
1. Apparatus for detecting a camera shaking comprising:
- acceleration sensing means mounted in the camera for sensing acceleration due to shaking of the camera to produce an electrical signal associated with the acceleration sensed;
alarm indicator means for indicating an alarm; and
control circuit means connected to said acceleration sensing means for comparing the electrical signal with a threshold signal level, said control circuit means being operative in response to releasing of a shutter of the camera to enable said alarm indicator means when the electrical signal exceeds the threshold, whereby said alarm indicator means indicates an alarm representative of the possibility of blur occurring due to shaking of the camera in an image taken by the camera.
3 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for detecting camera shaking includes an accelerometer mounted in a camera for sensing acceleration to produce an electrical signal representative of the acceleration sensed, an alarm indicator for indicating an alarm, and control circuitry connected to the accelerometer for comparing the electrical signal with a threshold level. The control circuitry is operative in response to release of a shutter of the camera to enable the alarm indicator when the electrical signal exceeds the threshold level. The indicator thereby indicates the possibility of blur due to shaking of the camera in an image taken.
For the accelerometer, a micromechanical acceleration sensor may be used, in which changes in electrostatic capacitance caused by acceleration applied are derived in the form of electrical signals.
172 Citations
20 Claims
-
1. Apparatus for detecting a camera shaking comprising:
-
acceleration sensing means mounted in the camera for sensing acceleration due to shaking of the camera to produce an electrical signal associated with the acceleration sensed; alarm indicator means for indicating an alarm; and control circuit means connected to said acceleration sensing means for comparing the electrical signal with a threshold signal level, said control circuit means being operative in response to releasing of a shutter of the camera to enable said alarm indicator means when the electrical signal exceeds the threshold, whereby said alarm indicator means indicates an alarm representative of the possibility of blur occurring due to shaking of the camera in an image taken by the camera. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. Apparatus for detecting a camera shaking comprising:
-
acceleration sensing means mounted in the camera for sensing acceleration due to shaking of the camera to produce an electrical signal associated with the acceleration sensed; alarm indicator means for indicating alarm; first threshold circuit means connected to said acceleration sensing means for comparing the end of said electrical signal in level with a first threshold signal level said first threshold circuit means being operative in response to a release signal indicative of the release of a shutter of the camera to produce a first signal when the level of said electrical signal exceeds the first threshold; and an alarm control circuit enabling said alarm indicator means when the first signal continues to be provided for a predetermined period of time, whereby said alarm indicator means indicates an alarm representative of the possibility of blur occurring due to shaking of the camera in an image taken by the camera. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. Apparatus for detecting a camera shaking comprising:
-
acceleration sensing means supported in the camera for sensing acceleration due to shaking of the camera to produce an electrical signal associated with the acceleration sensed; alarm indicator means for indicating an alarm; integrator circuit means for integrating the electrical signal with respect to time in response to a release signal indicative of a shutter releasing of the camera to produce a first signal; and threshold circuit means connected to said integrator circuit for comparing level of said the first signal with a threshold signal levels said threshold circuit means enabling said alarm indicator means in response to the level of said first signal exceeding the threshold signal level, whereby said alarm indicator means indicates an alarm representative of the possibility of blur occurring due to shaking of the camera in an image taken by the camera. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification