Patent · US Active

Common-mode noise compensation

US10565923B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Shiping Shen · Cupertino, US
Derek K. Shaeffer · Redwood City, US
Baris Cagdaser · Sunnyvale, US
Hyunwoo Nho · Palo Alto, US
Kingsuk Brahma · San Francisco, US
Hung Sheng Lin · San Jose, US
Injae Hwang · Tokyo, JP
Jie Won Ryu · Santa Clara, US
Hyunsoo Kim · Seoul, KR
Junhua Tan · Saratoga, US
Rui Zhang · Santa Clara, US
Shengkui Gao · Shoreline, US
Mohammad B. Vahid Far · San Jose, US
Jesse Aaron Richmond · San Francisco, US
Sun-Il Chang · San Jose, US

Key dates

Filing date	Sep 11, 2017
Grant date	Feb 18, 2020
Priority date	—
Expiry date	Mar 29, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG09G2330/12
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Electronic devices and methods for compensating for noise in a display that includes sensing a current in a sensing channel of the display. Compensating for the noise also includes sensing an observation current from noise in an observation channel of the display and scaling the observation current to generate a scaled observation current. The scaled observation current is subtracted from the sense current to generate a compensated output. The compensated output is used to drive compensation operations of the display based at least in part on the compensated output to reduce effects of the noise.

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