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.
Patent No.:
Date of Patent:
Apr. 04, 2000
Filed:
Mar. 10, 1997
Applicant:
Inventors:
Kazunori Uemura, Hitachinaka, JP;
Takashi Takahashi, Hitachinaka, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Microcomputer Systems Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; G03B / ;
U.S. Cl.
CPC ...
348240 ; 348358 ;
Abstract
Smooth interlocking operation of an optical zooming device and an electronic zooming device are realized by storing an amount of mechanical play of the optical zooming device in a play memory and then calculating the amount of mechanical play of the optical zooming from both the stored amount of mechanical play and lens drive control information to change the interlocking operation starting point of the optical zooming device and the electronic zooming device.