Anti-shake apparatus

Details Anti-shake apparatus Anti-shake apparatus

2005-03-04

2009-10-06

Ometz, David L (Department: 2622)

Television

Camera, system and detail

Camera image stabilization

C348S208110, C348S208500, C348S208130, C348S208400, C348S208700, C359S554000, C359S555000, C359S556000, C359S557000, C396S055000

Reexamination Certificate

active

07598981

ABSTRACT:
An anti-shake apparatus comprises a movable-unit, a fixed-unit, a signal-processor, and a controller. The movable-unit has an imaging-device and is movable in first-and second-directions, supported by the fixed-unit. The fixed-unit has a horizontal-hall-element for detecting a first-location, and a vertical-hall-element for detecting a second-location. The signal-processor outputs a first-signal specifying the first-location, from output signals of the horizontal-hall-element, to a first A/D-converter of the controller, and outputs a second-signal specifying the second-location, from output signals of the vertical-hall-element, to a second A/D-converter of the controller. The controller calculates the first-location in an A/D-converting-operation for the first-signal, and the second-location in an A/D-converting-operation for the second-signal. An optimized-horizontal-current-value is calculated in an initial-adjustment-operation for adjusting a detecting-resolution in the A/D-converting-operation for the first-signal, by changing the current-value flowing through the horizontal-hall-element. Current having the optimized-horizontal-current-value, flows through the horizontal-hall-element when detecting the position of the movable unit.

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