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:
Oct. 22, 2013

Filed:

Dec. 14, 2011
Applicant:

Sakae Okazaki, Tokyo, JP;

Inventor:

Sakae Okazaki, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A zoom tracking controller includes a lens position acquiring unit that acquires the positions of a first zoom lens and a first focus lens, a cam curve storage unit that stores at least one reference cam curve, a normalizing unit that normalizes the acquired first zoom lens position and first focus lens position to a zoom lens position and a focus lens position on one of at least one reference cam curve according to a first cam curve and the reference cam curve, a focused lens position determining unit that determines second zoom lens and second focus lens positions on a second cam curve from the normalized zoom lens and focus lens positions according to the second cam curve and reference cam curve, and a lens controller that respectively moves the second zoom lens and second focus lens to the determined second zoom lens position and second focus lens position.


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