Patent · US Active

Voice coil motor with pulse-width modulation driver

US8189280B2 · kind B2 · utility

21Cited by

11References

17Claims

0Family size

Assignee

Nokia · FI

Inventors

Mikko Ollila · Tampere, FI
Marko Eromaki · Tampere, FI

Key dates

Filing date	Jul 16, 2010
Grant date	May 29, 2012
Priority date	—
Expiry date	Aug 10, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02B7/08
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An apparatus is provided including a voice coil motor (VCM); a lens connected to the voice coil motor; and a pulse-width modulation (PWM) driver connected to the voice coil motor to at least partially control movement of the lens by the voice coil motor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.