KR102534345B1 - 디지털 필터들에 대한 계수 생성 - Google Patents

디지털 필터들에 대한 계수 생성 Download PDF

Info

Publication number
KR102534345B1
KR102534345B1 KR1020180021712A KR20180021712A KR102534345B1 KR 102534345 B1 KR102534345 B1 KR 102534345B1 KR 1020180021712 A KR1020180021712 A KR 1020180021712A KR 20180021712 A KR20180021712 A KR 20180021712A KR 102534345 B1 KR102534345 B1 KR 102534345B1
Authority
KR
South Korea
Prior art keywords
circuit
output
differential sequence
coefficients
values
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
KR1020180021712A
Other languages
English (en)
Korean (ko)
Other versions
KR20180101188A (ko
Inventor
페이준 샨
데이비드 소벨
스티븐 엘 모레인
Original Assignee
옴니비젼 티디디아이 온타리오 리미티드 파트너쉽
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 옴니비젼 티디디아이 온타리오 리미티드 파트너쉽 filed Critical 옴니비젼 티디디아이 온타리오 리미티드 파트너쉽
Publication of KR20180101188A publication Critical patent/KR20180101188A/ko
Application granted granted Critical
Publication of KR102534345B1 publication Critical patent/KR102534345B1/ko
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0227—Measures concerning the coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0225—Measures concerning the multipliers
    • H03H17/0226—Measures concerning the multipliers comprising look-up tables
    • 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
    • G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
    • G06F5/01—Methods or arrangements for data conversion without changing the order or content of the data handled for shifting, e.g. justifying, scaling, normalising
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0607—Non-recursive filters comprising a ROM addressed by the input data signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
    • H03H17/0664—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is lower than the input sampling frequency, i.e. decimation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H2017/0072—Theoretical filter design
    • H03H2017/0081—Theoretical filter design of FIR filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Analogue/Digital Conversion (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
KR1020180021712A 2017-03-03 2018-02-23 디지털 필터들에 대한 계수 생성 Active KR102534345B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/449,875 US10122346B2 (en) 2017-03-03 2017-03-03 Coefficient generation for digital filters
US15/449,875 2017-03-03

Publications (2)

Publication Number Publication Date
KR20180101188A KR20180101188A (ko) 2018-09-12
KR102534345B1 true KR102534345B1 (ko) 2023-05-22

Family

ID=63355974

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020180021712A Active KR102534345B1 (ko) 2017-03-03 2018-02-23 디지털 필터들에 대한 계수 생성

Country Status (4)

Country Link
US (1) US10122346B2 (enExample)
JP (1) JP7146414B2 (enExample)
KR (1) KR102534345B1 (enExample)
CN (1) CN108540107B (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021056786A1 (zh) * 2019-09-25 2021-04-01 掌阅科技股份有限公司 手写阅读设备及其报点数据处理方法、计算机存储介质
US12159007B1 (en) 2021-09-24 2024-12-03 Apple Inc. Methodology and application of sampled low noise reference voltage
KR102738268B1 (ko) * 2023-06-22 2024-12-04 주식회사 뉴파워 프라즈마 주파수 가변 노치 필터를 사용한 신호 처리 장치 및 방법
CN117217160B (zh) * 2023-11-07 2024-04-09 杭州行芯科技有限公司 交叠结构的电容库创建方法、电容获取方法、设备及介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003069388A (ja) 1997-05-30 2003-03-07 Internatl Business Mach Corp <Ibm> ディジタル・フィルタ
KR101584917B1 (ko) 2014-10-14 2016-01-14 세종대학교산학협력단 멀티 스테이지 필터 장치 및 그것을 이용한 필터링 방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257026A (en) 1992-04-17 1993-10-26 Crystal Semiconductor, Inc. Method and apparatus for calibrating a multi-bit delta-sigma modular
US5999355A (en) * 1996-04-30 1999-12-07 Cirrus Logic, Inc. Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording
US6603812B1 (en) * 1998-08-17 2003-08-05 Linear Technology Corporation Hardware implementation of a decimating finite impulse response filter
CA2525944C (en) * 2003-04-09 2012-06-05 Arris International, Inc. Reciprocal index lookup for btsc compatible coefficients
US20080013747A1 (en) 2006-06-30 2008-01-17 Bao Tran Digital stethoscope and monitoring instrument
TW200842699A (en) 2007-04-06 2008-11-01 Technology Properties Ltd Signal processing
DE102007046181A1 (de) * 2007-09-26 2009-04-02 Micronas Gmbh CIC-Filter mit fraktionaler Integration
JPWO2009072197A1 (ja) * 2007-12-05 2011-04-21 三菱電機株式会社 デジタルフィルタ、プリコーディング装置、送信システム
CN101510756A (zh) * 2009-03-06 2009-08-19 山东大学 基于mimo实时测试平台的数字信号下变频处理系统
WO2011149974A1 (en) 2010-05-24 2011-12-01 The Board Of Trustees Of The University Of Illinois High sensitivity environmental senor board and methods for structural health monitoring
EP2966778B1 (en) * 2014-07-11 2016-11-09 The Swatch Group Research and Development Ltd. Digital interpolator and method of interpolating
US10296108B2 (en) 2015-07-06 2019-05-21 Sigmasense, Llc. Pen system with internal pressure tilt rotation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003069388A (ja) 1997-05-30 2003-03-07 Internatl Business Mach Corp <Ibm> ディジタル・フィルタ
KR101584917B1 (ko) 2014-10-14 2016-01-14 세종대학교산학협력단 멀티 스테이지 필터 장치 및 그것을 이용한 필터링 방법

Also Published As

Publication number Publication date
US20180254768A1 (en) 2018-09-06
JP2018148557A (ja) 2018-09-20
US10122346B2 (en) 2018-11-06
KR20180101188A (ko) 2018-09-12
CN108540107B (zh) 2023-09-05
JP7146414B2 (ja) 2022-10-04
CN108540107A (zh) 2018-09-14

Similar Documents

Publication Publication Date Title
JP7118902B2 (ja) デルタシグマ変調器を備えた入力装置レシーバ
US10068121B2 (en) Baseline compensation for capacitive sensing
US9703430B2 (en) Driving sensor electrodes for proximity sensing
US10228797B2 (en) Continuous time anti-alias filter for capacitive touch sensing
US9703436B2 (en) Hybrid large dynamic range capacitance sensing
KR102534345B1 (ko) 디지털 필터들에 대한 계수 생성
US10061437B2 (en) Active canceling of display noise in simultaneous display and touch sensing using an impulse response
US10816582B2 (en) Sigma-delta configurations for capacitance sensing
US20150277621A1 (en) Sensor device and method for estimating noise in a capacitive sensing device
US9817502B2 (en) Switched-capacitor harmonic-reject mixer
US9645670B2 (en) Sensing frame averaging for cancelling display noise in simultaneous display and touch sensing
KR102367762B1 (ko) 병렬 아날로그-디지털 변환기 채널들을 갖는 시스템들에서의 데시메이션 필터링
US11126311B2 (en) Capacitive sensing acquisition schemes
JP2019515372A (ja) タッチ力推定のためのトランス容量データと絶対容量データとの組み合わせ
US10126867B2 (en) Matched filter for a first order sigma delta capacitance measurement system and a method to determine the same
WO2018231388A1 (en) Mitigating audible noise in a display having an integrated touch sensor
US20230089160A1 (en) Touch-to-display noise mitigation for touchscreen devices
CN109032436B (zh) 用于电容性感测的连续时间接收器的干扰抑制和时钟抖动
US10055045B2 (en) Current feedback digital charge accumulator
US10181872B1 (en) Impulse response filtering of code division multiplexed signals in a capacitive sensing device

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20180223

PG1501 Laying open of application
PN2301 Change of applicant

Patent event date: 20200529

Comment text: Notification of Change of Applicant

Patent event code: PN23011R01D

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20210223

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 20180223

Comment text: Patent Application

PN2301 Change of applicant

Patent event date: 20211126

Comment text: Notification of Change of Applicant

Patent event code: PN23011R01D

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20230426

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20230516

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20230517

End annual number: 3

Start annual number: 1

PG1601 Publication of registration