The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 11, 2012

Filed:

Feb. 17, 2010
Applicants:

Leonard T. Chapman, North Hollywood, CA (US);

Stanislov Gorbatov, Los Angeles, CA (US);

Inventors:

Leonard T. Chapman, North Hollywood, CA (US);

Stanislov Gorbatov, Los Angeles, CA (US);

Assignee:

Chapman/Leonard Studio Equipment, Inc., North Hollywood, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

A camera platform may be stabilized by reducing or avoiding oscillating movement, when active stabilization systems are not used. A passive dampener resists the back driving of the motors used in the active stabilization system. This dampening or resistance to back driving the motors in turn dampens movement of the camera platform. Oscillations are reduced or avoided and the camera platform may return more quickly and smoothly to a level position. The dampener may be provided as an add-on or temporarily electrically switched in accessory. The dampener may include a circuit that connects the first and second motors of the active stabilization system in series, and connects the series output of the two motors to a variable resistor through a rectifier. A transistor may be with the variable resistor to provide for more linear adjusting and a more compact variable resistor.


Find Patent Forward Citations

Chapman, Leonard. (2012). Electronic dampening for a camera crane (U.S. Patent No. 8328439). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8328439

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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