×

Image stabilizing apparatus for a portable video camera

  • US 5,012,347 A
  • Filed: 08/28/1989
  • Issued: 04/30/1991
  • Est. Priority Date: 01/22/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. An image stabilization apparatus for a portable video camera comprising:

  • lens means, having an optical axis z, for projecting an image onto a plane extending in x and y directions perpendicular to said optical axis z;

    photosensitive means, responsive to x and y direction scanning signals, for analyzing said image along x and y axes;

    electrical means for supplying said x and y direction scanning signals; and

    at least one measuring means for supplying signal values to said electrical means to control said x and y direction scanning signals, said at least one measuring means including gyrometric means for sensing the angular velocity of the camera body about one of said x, y and z axes and producing a corresponding output value, and integrator means, responsive to said output value from said gyrometric means, for deriving an angle of rotation value from said angular velocity value and for feeding said angle of rotation value to said electrical means to control said x and y scanning signals, said integrator means supplying an integrated output value of said angular velocity value for rapid movements of said camera body and providing a slow automatic return to zero of its output value when said angular velocity value is low.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×