CN110347282B - 噪声抑制电路 - Google Patents

噪声抑制电路 Download PDF

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Publication number
CN110347282B
CN110347282B CN201910272120.XA CN201910272120A CN110347282B CN 110347282 B CN110347282 B CN 110347282B CN 201910272120 A CN201910272120 A CN 201910272120A CN 110347282 B CN110347282 B CN 110347282B
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China
Prior art keywords
coupled
input
reduced noise
amplifier
noise signals
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CN201910272120.XA
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Chinese (zh)
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CN110347282A (zh
Inventor
刘春波
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Synaptics Inc
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Synaptics Inc
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/181—Enclosures
    • G06F1/182—Enclosures with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Position Input By Displaying (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
CN201910272120.XA 2018-04-05 2019-04-04 噪声抑制电路 Active CN110347282B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862653331P 2018-04-05 2018-04-05
US62/653331 2018-04-05
US16/373369 2019-04-02
US16/373,369 US11054942B2 (en) 2018-04-05 2019-04-02 Noise suppression circuit

Publications (2)

Publication Number Publication Date
CN110347282A CN110347282A (zh) 2019-10-18
CN110347282B true CN110347282B (zh) 2024-07-23

Family

ID=68097152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910272120.XA Active CN110347282B (zh) 2018-04-05 2019-04-04 噪声抑制电路

Country Status (4)

Country Link
US (2) US11054942B2 (cg-RX-API-DMAC7.html)
JP (1) JP7267073B2 (cg-RX-API-DMAC7.html)
KR (1) KR102746065B1 (cg-RX-API-DMAC7.html)
CN (1) CN110347282B (cg-RX-API-DMAC7.html)

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KR102348144B1 (ko) * 2020-12-11 2022-01-07 주식회사 지니틱스 전류 컨베이어를 이용한 터치입력 감지장치
US20230408564A1 (en) * 2022-06-08 2023-12-21 Invensense, Inc. Low noise readout interface for capacitive sensors with negative capacitance
KR20250080184A (ko) * 2023-11-28 2025-06-05 엘지디스플레이 주식회사 전압 및 위상 보상 회로와 이를 포함한 표시장치

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CN105339857A (zh) * 2013-05-08 2016-02-17 辛纳普蒂克斯公司 电荷分配

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Also Published As

Publication number Publication date
CN110347282A (zh) 2019-10-18
US20190310739A1 (en) 2019-10-10
JP2019207682A (ja) 2019-12-05
US20210294454A1 (en) 2021-09-23
JP7267073B2 (ja) 2023-05-01
US11054942B2 (en) 2021-07-06
US11460953B2 (en) 2022-10-04
KR20190116940A (ko) 2019-10-15
KR102746065B1 (ko) 2024-12-23

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