Blur correction aparatus, control apparatus to be used in a blur correction apparatus, image taking apparatus, control method to be used in these apparatuses and computer program product to be used with these apparatuses

An apparatus adapted to a blur correction device to correct an image blur based on an output of a vibration detection device, wherein said vibration detection device includes an angular velocity sensor for detecting an angular velocity in vibration of said apparatus, the apparatus comprising:

• a limiting device that in a case where an output of said vibration detection device is equal to or larger than a first predetermined amplitude value and is smaller than a second predetermined amplitude value, limits the output using a first limitation manner in which a first predetermined attenuation ratio is multiplied onto the output, so as to make the output continuously leading to an output of the first predetermined amplitude value, and in a case where the output is equal to or larger than the second predetermined amplitude value, selects one of (a) limiting the output by a second limitation manner in which a second predetermined attenuation ratio which provides an attenuation action larger than that provided by the first predetermined attenuation ratio is multiplied onto the output and (b) setting the output into a constant amplitude value, so as to make the output continuously leading to an output of the second predetermined amplitude value.

A control method adapted to a blur correction device to correct an image blur based on an output of a vibration detection device, wherein the vibration detection device includes an angular velocity sensor for detecting an angular velocity in vibration of an apparatus, the method comprising:

• in a case where an output of the vibration detection device is equal to or larger than a first predetermined amplitude value and is smaller than a second predetermined amplitude value, limiting the output using a first limitation manner in which a first predetermined attenuation ratio is multiplied onto the output, so as to make the output continuously leading to an output of the first predetermined amplitude value, and in a case where the output is equal to or larger than the second predetermined amplitude value, selecting one of (a) limiting the output using a second limitation manner in which a second predetermined attenuation ratio which provides an attenuation action larger than that provided by the first predetermined attenuation ratio is multiplied onto the output and (b) setting the output into a constant amplitude value, so as to make the output continuously leading to an output of the second predetermined amplitude value.

A computer program product adapted to a blur correction device to correct an image blur based on an output of a vibration detection device, wherein the vibration detection device includes an angular velocity sensor for detecting an angular velocity in vibration of an apparatus, the computer program product being stored in a computer-readable medium and effecting a method comprising:

• in a case where an output of the vibration detection device is equal to or larger than a first predetermined amplitude value and is smaller than a second predetermined amplitude value, limiting the output using a first limitation manner in which a first predetermined attenuation ratio is multiplied onto the output, so as to make the output continuously leading to an output of the first predetermined amplitude value, and in a case where the output is equal to or larger than the second predetermined amplitude value, selecting one of (a) limiting the output by a second limitation manner in which a second predetermined attenuation ratio which provides an attenuation action larger than that provided by the first predetermined attenuation ratio is multiplied onto the output and (b) setting the output into a constant amplitude value, so as to make the output continuously leading to an output of the second predetermined amplitude value.