KR20040095212A - 전자파 간섭 방출을 감소시키는 방법 및 시스템 - Google Patents

전자파 간섭 방출을 감소시키는 방법 및 시스템 Download PDF

Info

Publication number
KR20040095212A
KR20040095212A KR10-2004-7012073A KR20047012073A KR20040095212A KR 20040095212 A KR20040095212 A KR 20040095212A KR 20047012073 A KR20047012073 A KR 20047012073A KR 20040095212 A KR20040095212 A KR 20040095212A
Authority
KR
South Korea
Prior art keywords
digital signal
signal
spread
power
transmission line
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.)
Ceased
Application number
KR10-2004-7012073A
Other languages
English (en)
Korean (ko)
Inventor
댄흐 티. 트랜
체 리우
케네스 더블유. 에간
Original Assignee
유니버시티 오브 휴스턴
세미 인코포레이티드
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 유니버시티 오브 휴스턴, 세미 인코포레이티드 filed Critical 유니버시티 오브 휴스턴
Publication of KR20040095212A publication Critical patent/KR20040095212A/ko
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • 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
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/10—Distribution of clock signals, e.g. skew
    • 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
    • G06F1/189—Power distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radio Relay Systems (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
KR10-2004-7012073A 2002-02-04 2003-02-04 전자파 간섭 방출을 감소시키는 방법 및 시스템 Ceased KR20040095212A (ko)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US35423402P 2002-02-04 2002-02-04
US60/354,234 2002-02-04
US36533002P 2002-03-18 2002-03-18
US36534802P 2002-03-18 2002-03-18
US60/365,330 2002-03-18
US60/365,348 2002-03-18
US38345502P 2002-05-25 2002-05-25
US60/383,455 2002-05-25
US10/357,255 US7305020B2 (en) 2002-02-04 2003-02-03 Method and system of reducing electromagnetic interference emissions
US10/357,255 2003-02-03
PCT/US2003/003263 WO2003067379A2 (en) 2002-02-04 2003-02-04 Method and system of reducing electromagnetic interference emissions

Publications (1)

Publication Number Publication Date
KR20040095212A true KR20040095212A (ko) 2004-11-12

Family

ID=30119442

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2004-7012073A Ceased KR20040095212A (ko) 2002-02-04 2003-02-04 전자파 간섭 방출을 감소시키는 방법 및 시스템

Country Status (8)

Country Link
US (6) US7305020B2 (enExample)
EP (1) EP1472798B1 (enExample)
JP (1) JP2005524889A (enExample)
KR (1) KR20040095212A (enExample)
CN (1) CN1628422A (enExample)
AU (1) AU2003207828A1 (enExample)
DE (1) DE60321658D1 (enExample)
WO (1) WO2003067379A2 (enExample)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040153073A1 (en) * 2000-02-01 2004-08-05 Hand Innovations, Inc. Orthopedic fixation system including plate element with threaded holes having divergent axes
JP2004023556A (ja) * 2002-06-18 2004-01-22 Seiko Epson Corp 電子機器
JP3800331B2 (ja) * 2002-10-22 2006-07-26 ソニー株式会社 無線通信回路、無線通信端末および方法、記録媒体、並びにプログラム
FR2865316B1 (fr) * 2004-01-21 2006-07-21 Siemens Vdo Automotive Optimisation du nombre de sorties de puissance d'un circuit integre
US20050265427A1 (en) * 2004-05-28 2005-12-01 Gumm Linley F Up converted PRN generator
KR100604906B1 (ko) * 2004-10-05 2006-07-28 삼성전자주식회사 가변 스프레드 스펙트럼 클럭발생기
US7424046B2 (en) * 2004-10-15 2008-09-09 Altera Corporation Spread spectrum clock signal generation system and method
US8233554B2 (en) 2010-03-29 2012-07-31 Eices Research, Inc. Increased capacity communications for OFDM-based wireless communications systems/methods/devices
US8670493B2 (en) 2005-06-22 2014-03-11 Eices Research, Inc. Systems and/or methods of increased privacy wireless communications
USRE47633E1 (en) 2005-06-22 2019-10-01 Odyssey Wireless Inc. Systems/methods of conducting a financial transaction using a smartphone
US7295140B2 (en) * 2005-07-13 2007-11-13 Texas Instruments Incorporated Oversampling analog-to-digital converter and method with reduced chopping residue noise
US7535964B2 (en) * 2005-08-31 2009-05-19 Maxim Integrated Products, Inc. Self-clocked two-level differential signaling methods and apparatus
US7813460B2 (en) * 2005-09-30 2010-10-12 Slt Logic, Llc High-speed data sampler with input threshold adjustment
US8565284B2 (en) * 2006-08-14 2013-10-22 Intersil Americas Inc. Spread spectrum clock generator and method
US20080170685A1 (en) * 2007-01-16 2008-07-17 Broadcom Corporation, A California Corporation Data scrambling circuit
DE102008027391B8 (de) * 2008-06-09 2011-07-28 Atmel Automotive GmbH, 74072 Schaltung, Verfahren zum Empfangen eines Signals und Verwendung eines Zufallsgenerators
US20160286532A1 (en) * 2012-01-24 2016-09-29 Odyssey Wireless, Inc. Systems/methods of preferentially using a first asset, refraining from using a second asset and providing reduced levels of interference to gps and/or satellites
US9374746B1 (en) 2008-07-07 2016-06-21 Odyssey Wireless, Inc. Systems/methods of spatial multiplexing
EP2237419B1 (en) * 2009-03-31 2015-06-10 EqcoLogic N.V. Transceiver for single ended communication with low EMI
US8171332B2 (en) * 2009-05-12 2012-05-01 Himax Technologies Limited Integrated circuit with reduced electromagnetic interference induced by memory access and method for the same
US9496981B2 (en) * 2009-07-22 2016-11-15 Globalfoundries Inc. System and method of masking electromagnetic interference (EMI) emissions of a circuit
KR101654218B1 (ko) * 2010-01-13 2016-09-06 삼성전자주식회사 스프레드 스펙트럼 클럭 발생기
US8583070B2 (en) 2010-04-20 2013-11-12 Qualcomm Incorporated Autonomous electromagnetic emissions reduction for sensitivity improvement
US20110317744A1 (en) * 2010-06-29 2011-12-29 Alan Erickson System and method for spread spectrum acoustic communication
US8198929B2 (en) * 2010-08-31 2012-06-12 Intel Corporation Dynamic element matching for time-to-digital converters
DE102010042903A1 (de) * 2010-10-26 2012-04-26 Robert Bosch Gmbh Übertragungsverfahren und -System
US8699642B2 (en) * 2010-12-22 2014-04-15 Intel Corporation Platform RFI mitigation
US9768867B2 (en) * 2013-04-19 2017-09-19 Philips Lighting Holding B.V. Recovering timing from a self-clocking coded light signal
CN103955256B (zh) 2014-04-24 2017-04-12 华为技术有限公司 时钟频率调制的方法和时钟频率调制装置
EP3062142B1 (en) 2015-02-26 2018-10-03 Nokia Technologies OY Apparatus for a near-eye display
US9793890B2 (en) * 2015-05-07 2017-10-17 Infineon Technologies Austria Ag System and method for a switch transistor driver
US9900145B2 (en) * 2016-05-19 2018-02-20 Omnivision Technologies, Inc. Clock generator and method for reducing electromagnetic interference from digital systems
US10650552B2 (en) 2016-12-29 2020-05-12 Magic Leap, Inc. Systems and methods for augmented reality
EP3343267B1 (en) 2016-12-30 2024-01-24 Magic Leap, Inc. Polychromatic light out-coupling apparatus, near-eye displays comprising the same, and method of out-coupling polychromatic light
US10578870B2 (en) 2017-07-26 2020-03-03 Magic Leap, Inc. Exit pupil expander
JP7282090B2 (ja) 2017-12-10 2023-05-26 マジック リープ， インコーポレイテッド 光学導波管上の反射防止性コーティング
KR102761610B1 (ko) 2017-12-20 2025-01-31 매직 립, 인코포레이티드 증강 현실 뷰잉 디바이스용 인서트
US10755676B2 (en) 2018-03-15 2020-08-25 Magic Leap, Inc. Image correction due to deformation of components of a viewing device
EP3803488A4 (en) 2018-05-30 2021-07-28 Magic Leap, Inc. COMPACT VARIABLE FOCAL CONFIGURATIONS
EP3803450A4 (en) 2018-05-31 2021-08-18 Magic Leap, Inc. HEAD POSTURE LOCATION BY RADAR
EP3804306B1 (en) 2018-06-05 2023-12-27 Magic Leap, Inc. Homography transformation matrices based temperature calibration of a viewing system
EP3803545B1 (en) 2018-06-08 2025-02-26 Magic Leap, Inc. Augmented reality viewer with automated surface selection placement and content orientation placement
US11714127B2 (en) 2018-06-12 2023-08-01 International Business Machines Corporation On-chip spread spectrum characterization
US11579441B2 (en) 2018-07-02 2023-02-14 Magic Leap, Inc. Pixel intensity modulation using modifying gain values
WO2020010226A1 (en) 2018-07-03 2020-01-09 Magic Leap, Inc. Systems and methods for virtual and augmented reality
US11856479B2 (en) 2018-07-03 2023-12-26 Magic Leap, Inc. Systems and methods for virtual and augmented reality along a route with markers
JP7374981B2 (ja) 2018-07-10 2023-11-07 マジック リープ， インコーポレイテッド クロス命令セットアーキテクチャプロシージャ呼出のためのスレッドウィービング
US11624929B2 (en) 2018-07-24 2023-04-11 Magic Leap, Inc. Viewing device with dust seal integration
CN112689741B (zh) 2018-07-24 2024-10-11 奇跃公司 移动检测设备的依赖于温度的校准
EP3831058B1 (en) 2018-08-02 2025-10-08 Magic Leap, Inc. A viewing system with interpupillary distance compensation based on head motion
JP7438188B2 (ja) 2018-08-03 2024-02-26 マジック リープ， インコーポレイテッド ユーザ相互作用システムにおけるトーテムの融合姿勢の非融合姿勢ベースのドリフト補正
CN112955073B (zh) 2018-08-22 2025-01-28 奇跃公司 患者观察系统
US10914949B2 (en) 2018-11-16 2021-02-09 Magic Leap, Inc. Image size triggered clarification to maintain image sharpness
CN118409394A (zh) 2018-12-21 2024-07-30 奇跃公司 用于促进波导内的全内反射的气穴结构
JP7515489B2 (ja) 2019-02-06 2024-07-12 マジック リープ， インコーポレイテッド 複数のプロセッサによって発生される総熱を限定するための標的意図ベースのクロック速度の決定および調節
WO2020185405A1 (en) 2019-03-12 2020-09-17 Magic Leap, Inc. Registration of local content between first and second augmented reality viewers
CN110047419A (zh) * 2019-04-30 2019-07-23 深圳市华星光电半导体显示技术有限公司 改善goa电路电磁辐射的驱动装置及其方法
CN114127837B (zh) 2019-05-01 2025-08-05 奇跃公司 内容提供系统和方法
US11152855B2 (en) 2019-05-21 2021-10-19 Texas Instruments Incorporated Multiple dithering profile signal generation
EP4004630A4 (en) 2019-07-26 2022-09-28 Magic Leap, Inc. SYSTEMS AND PROCEDURES FOR AUGMENTED REALITY
CN114730490A (zh) 2019-11-14 2022-07-08 奇跃公司 用于虚拟现实和增强现实的系统和方法
US11737832B2 (en) 2019-11-15 2023-08-29 Magic Leap, Inc. Viewing system for use in a surgical environment
US11146307B1 (en) * 2020-04-13 2021-10-12 International Business Machines Corporation Detecting distortion in spread spectrum signals
US11693446B2 (en) 2021-10-20 2023-07-04 International Business Machines Corporation On-chip spread spectrum synchronization between spread spectrum sources

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392220A (en) * 1980-05-30 1983-07-05 Nippon Electric Co., Ltd. Modem to be coupled to a directional transmission line of an SS multiplex communication network
JPS60229545A (ja) * 1984-04-27 1985-11-14 Sony Corp 双方向デイジタル通信方式
US4888788A (en) * 1986-11-20 1989-12-19 Matsushita Electric Industrial Co., Ltd. Transmitting and receiving systems
JPS6489823A (en) * 1987-09-30 1989-04-05 Toshiba Corp Control circuit for radio equipment
US5357541A (en) * 1989-03-23 1994-10-18 Echelon Corporation Transceiver providing selectable frequencies and spreading sequences
US4996684A (en) * 1989-07-06 1991-02-26 Northern Telecom Limited Electronic systems and effective reduction of electromagnetic interference energy propagation from electronic systems
US5126957A (en) * 1989-09-29 1992-06-30 Health Tech Services Corp. Interactive medication delivery system
US5093841A (en) * 1990-01-30 1992-03-03 Nynex Corporation Clock acquisition in a spread spectrum system
US5128957A (en) 1990-08-10 1992-07-07 Ricoh Company, Ltd. Initial acquisition method in spread spectrum system and such system
US5177766A (en) * 1991-06-03 1993-01-05 Spectralink Corporation Digital clock timing generation in a spread-spectrum digital communication system
US5263055A (en) * 1991-11-04 1993-11-16 Motorola, Inc. Apparatus and method for reducing harmonic interference generated by a clock signal
US5416434A (en) * 1993-03-05 1995-05-16 Hewlett-Packard Corporation Adaptive clock generation with pseudo random variation
US5506545A (en) * 1993-11-09 1996-04-09 Gte Government Systems Corporation Electronic apparatus having low radio frequency interference from controlled excursion noise-modulated system clock signal
US5631920A (en) * 1993-11-29 1997-05-20 Lexmark International, Inc. Spread spectrum clock generator
US5498928A (en) * 1994-05-24 1996-03-12 Osram Sylvania Inc. Electrodeless high intensity discharge lamp energized by a rotating electric field
US5692006A (en) * 1995-07-31 1997-11-25 Qualcomm Incorporated Adaptive despreader
US6072994A (en) * 1995-08-31 2000-06-06 Northrop Grumman Corporation Digitally programmable multifunction radio system architecture
US6020939A (en) 1996-01-19 2000-02-01 Sun Microsystems, Inc. Method and apparatus for reducing electromagnetic interference radiated by cathode ray tube displays
WO1997042703A1 (en) * 1996-05-06 1997-11-13 Skaggs Telecommunications Service, Inc. Dithered clock circuit for reduced radio interference
US5889819A (en) * 1996-08-08 1999-03-30 Hewlett-Packard Company EMI reduction using double sideband suppressed carrier modulation
US6256337B1 (en) 1996-11-21 2001-07-03 Dsp Group, Inc. Rapid acquisition of PN synchronization in a direct-sequence spread-spectrum digital communications system
FR2756692B1 (fr) 1996-11-29 1999-01-08 Commissariat Energie Atomique Procede de transmission a etalement de spectre par sequence directe, avec generation et optimisation des sequences
JP3821537B2 (ja) * 1997-05-20 2006-09-13 富士通株式会社 データ通信システム
US6169889B1 (en) 1997-08-04 2001-01-02 Motorola Method and electronic device using random pulse characteristics in digital signals
US6240123B1 (en) * 1998-07-20 2001-05-29 Intel Corporation Asynchronous spread spectrum clocking
US6345073B1 (en) 1998-10-08 2002-02-05 The Aerospace Corporation Convolutional despreading method for rapid code phase determination of chipping codes of spread spectrum systems
US6167103A (en) * 1998-10-08 2000-12-26 Lexmark International, Inc. Variable spread spectrum clock
US6711121B1 (en) * 1998-10-09 2004-03-23 At&T Corp. Orthogonal code division multiplexing for twisted pair channels
US6687319B1 (en) * 1999-02-04 2004-02-03 Rambus Inc. Spread spectrum clocking of digital signals
US6426977B1 (en) 1999-06-04 2002-07-30 Atlantic Aerospace Electronics Corporation System and method for applying and removing Gaussian covering functions
US6292507B1 (en) * 1999-09-01 2001-09-18 Lexmark International, Inc. Method and apparatus for compensating a spread spectrum clock generator
US6643317B1 (en) * 2000-02-25 2003-11-04 Electronics For Imaging, Inc. Digital spread spectrum circuit
US6483865B1 (en) * 2000-04-13 2002-11-19 The Boeing Company Wireless interface for electronic devices located in enclosed spaces
US6687322B1 (en) * 2000-10-06 2004-02-03 Adaptec, Inc. Dual mode clock alignment and distribution device
US6999544B2 (en) * 2001-02-02 2006-02-14 International Business Machines Corporation Apparatus and method for oversampling with evenly spaced samples
US6404260B1 (en) 2001-02-13 2002-06-11 Sun Microsystems, Inc. Method and apparatus for using a non-periodic signal to perform clock dithering
US6956914B2 (en) * 2001-09-19 2005-10-18 Gennum Corporation Transmit amplitude independent adaptive equalizer
US6501307B1 (en) * 2001-11-12 2002-12-31 Pericom Semiconductor Corp. Spread-spectrum clock buffer/driver that modulates clock period by switching loads
US7333527B2 (en) * 2001-11-27 2008-02-19 Sun Microsystems, Inc. EMI reduction using tunable delay lines
US6647052B2 (en) * 2001-12-26 2003-11-11 Dell Products L.P. Advanced spread spectrum clock generation technique for EMI reduction of multiple clock sources
TWI223505B (en) * 2003-06-03 2004-11-01 Realtek Semiconductor Corp Circuit and method to spread spectrum by using phase modulation technique

Also Published As

Publication number Publication date
AU2003207828A8 (en) 2003-09-02
US20050084021A1 (en) 2005-04-21
CN1628422A (zh) 2005-06-15
US20050105590A1 (en) 2005-05-19
US7305020B2 (en) 2007-12-04
WO2003067379A2 (en) 2003-08-14
WO2003067379A8 (en) 2004-10-14
JP2005524889A (ja) 2005-08-18
WO2003067379A9 (en) 2004-11-11
AU2003207828A1 (en) 2003-09-02
DE60321658D1 (de) 2008-07-31
US20080198945A1 (en) 2008-08-21
US7386028B2 (en) 2008-06-10
US20050100080A1 (en) 2005-05-12
EP1472798A4 (en) 2005-08-10
US20040001533A1 (en) 2004-01-01
EP1472798A2 (en) 2004-11-03
US20050105592A1 (en) 2005-05-19
WO2003067379A3 (en) 2004-02-05
EP1472798B1 (en) 2008-06-18

Similar Documents

Publication Publication Date Title
US7305020B2 (en) Method and system of reducing electromagnetic interference emissions
US7010014B1 (en) Digital spread spectrum circuitry
US5410683A (en) Programmable divider exhibiting a 50/50 duty cycle
EP0968580B1 (en) Spread spectrum phase modulation for suppression of electromagnetic interference in parallel data channels
US5444407A (en) Microprocessor with distributed clock generators
CN101889253B (zh) 集成电路时钟管理技术
CN115810334B (zh) 一种降低oled驱动电路电磁干扰的芯片电路
US20050105591A1 (en) Noise source synchronization for power spread signals
JP5116376B2 (ja) 電磁干渉を減少させる方法及びクロック管理回路、（コヒーレントな周波数クロックの生成及びノンコヒーレントな位相を用いるスペクトル管理）
Tang et al. Multi-FPGA prototyping board issue: the FPGA I/O bottleneck
CN101379739A (zh) 用以降低电磁干扰的技术
JP2577999B2 (ja) 擬似雑音符号発生装置における先頭又は任意ビットパルス生成回路およびサンプリングパルス生成回路
JP2001202153A (ja) クロックのスペクトラム拡散回路、集積回路およびクロックのスペクトラム拡散方法
EP1829254A2 (en) Techniques for reduced emi
US7151810B2 (en) Data and clock synchronization in multi-channel communications
US6888480B1 (en) Run-length violation detection circuitry and methods for using the same
CN118487595A (zh) 频率选择电路、时钟产生电路及处理器
Tran et al. Gated direct sequence spread spectrum clocking scheme for multimedia systems
US7321247B2 (en) Timer facility for high frequency processors with minimum dependency of processor frequency modes
CN105793717A (zh) 时钟杂散降低技术

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20040804

Patent event code: PA01051R01D

Comment text: International Patent Application

N231 Notification of change of applicant
PN2301 Change of applicant

Patent event date: 20041006

Comment text: Notification of Change of Applicant

Patent event code: PN23011R01D

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20070807

Comment text: Request for Examination of Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20080616

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 20090130

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20080616

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I