Invention Grant
- Patent Title: Common-mode noise compensation
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Application No.: US15700971Application Date: 2017-09-11
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Publication No.: US10565923B2Publication Date: 2020-02-18
- Inventor: Shiping Shen , Derek K. Shaeffer , Baris Cagdaser , Hyunwoo Nho , Kingsuk Brahma , Hung Sheng Lin , Injae Hwang , Jie Won Ryu , Hyunsoo Kim , Junhua Tan , Rui Zhang , Shengkui Gao , Mohammad B Vahid Far , Jesse A. Richmond , Sun-Il Chang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder PC
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/3233 ; G09G3/36
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.
Public/Granted literature
- US20180342193A1 COMMON-MODE NOISE COMPENSATION Public/Granted day:2018-11-29
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