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:
Dec. 19, 2000
Filed:
Mar. 21, 1996
Naoki Kawaguchi, Kanagawa, JP;
Yoshikazu Ohchi, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
A portable video camera with adjustable motor driving signals for optimizing power consumption including a zoom lens and a focusing lens driven by stepping motors, a drive signal generating circuit for generating drive signals to the stepping motors, an external input device for receiving an external motor driving speed and motor direction input from a user, a control circuit for estimating drive loads to the stepping motors based on the external motor driving speed and motor direction input from the user and for producing an amplitude control signal corresponding to the external input, and a circuit for controlling an amplitude of the drive signals based on the amplitude control signal produced by the control circuit for estimating drive loads and for feeding the amplitude of the drive signals to the drive signal generating circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile