Patent ID: 7643063
Filing Date: 2010-01-05
Classification: G03B,H04N

Abstract:
1. An apparatus for providing video images using dual loop image stabilization, comprising: a video camera positioned on a moveable platform and configured to provide a video image of a scene, the video camera including an internal image stability control device configured to at least partially stabilize the video image when the video camera is subjected to a first motion environment including a first amplitude range and a first frequency range; at least one external image stability control device coupled between the video camera and the moveable platform and configured to apply an opposing force along an axis in response to the video camera being subjected to a force in a linear direction along the axis in a second motion environment including a second amplitude range and a second frequency range, wherein the at least one external image stability control device includes a biasing member and a dampening member mounted approximately parallel to the axis, and wherein the biasing member and the dampening member operate in parallel to apply the opposing force along the axis; and a motion sensing device coupled to the video camera and configured to detect movement of the video camera relative to the scene and to transmit a control signal to the at least one external image stability control device to adjust a stabilization response of the at least one external image stability control device according to the movement of the video camera.