/Patent Tracker
SamsungPatent applicationCameras & imagingInterest 4/10

Samsung patents camera lens system that switches driving modes to cut noise

Patent drawing
Patent drawing from the official filing.

Samsung describes a camera module where the lens moves using a coil and magnet system. The device calculates how much electrical noise the lens motor might create and switches between two different power delivery methods to keep that noise below a certain level.

Why it mattersThis technique could help smartphone cameras produce cleaner images by preventing the lens motor from interfering with the sensor's signal.

In the filing’s own words

A camera module includes: an image sensor; a first lens assembly; and a first driving circuit including a first coil and a first magnet, wherein the first driving circuit is configured to move the first lens assembly in at least one axial direction. A method of operating a camera module may comprise: applying a driving voltage to the first driving circuit according to a linear driving method based on a first value being greater than a specified value, the first value being related to a first maximum current value flowing through the first coil and noise of the image sensor based on a first distance between the first coil and the image sensor; and applying the driving voltage to the first driving circuit according to a PWM method based on the first value not being greater than the specified value.

What exactly they claim (claim 1)

1. A method of operating a camera module, wherein the camera module comprises an image sensor, a first lens assembly including at least one lens, and first driving circuitry including a first coil and a first magnet, and wherein the first driving circuitry is configured to move the first lens assembly in at least one axial direction, the method comprising: based on a first value related to noise of the image sensor based on a first maximum current value flowing in the first coil and a first distance between the first coil and the image sensor being greater than a specified value, applying a driving voltage to the first driving circuitry according to a linear driving scheme; and based on the first value being no greater than the specified value, applying the driving voltage to the first driving circuitry according to a pulse width modulation (PWM) scheme.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
CAMERA MODULE AND OPERATION METHOD THEREOF
Publication number
US20260319338A1
Application number
19688037
Filed
May 26, 2026
Published
Oct 15, 2026
Inventors
4
Claims
20

Classified under

G03B 13/36 Physics & computingG03B 5/04 Physics & computingH04N 23/687 Electricity & electronicsH04N 23/69 Electricity & electronicsH04N 25/617 Electricity & electronicsG03B 2205/0015 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Samsung in Cameras & imaging

Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.