JP2005524889A5 - - Google Patents

Download PDF

Info

Publication number
JP2005524889A5
JP2005524889A5 JP2003566664A JP2003566664A JP2005524889A5 JP 2005524889 A5 JP2005524889 A5 JP 2005524889A5 JP 2003566664 A JP2003566664 A JP 2003566664A JP 2003566664 A JP2003566664 A JP 2003566664A JP 2005524889 A5 JP2005524889 A5 JP 2005524889A5
Authority
JP
Japan
Prior art keywords
digital signal
noise generator
pseudo
random noise
signal
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.)
Pending
Application number
JP2003566664A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005524889A (ja
Filing date
Publication date
Priority claimed from US10/357,255 external-priority patent/US7305020B2/en
Application filed filed Critical
Publication of JP2005524889A publication Critical patent/JP2005524889A/ja
Publication of JP2005524889A5 publication Critical patent/JP2005524889A5/ja
Pending legal-status Critical Current

Links

JP2003566664A 2002-02-04 2003-02-04 電磁干渉エミッションを低減する方法及びシステム Pending JP2005524889A (ja)

Applications Claiming Priority (6)

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

Publications (2)

Publication Number Publication Date
JP2005524889A JP2005524889A (ja) 2005-08-18
JP2005524889A5 true JP2005524889A5 (https=) 2007-09-13

Family

ID=30119442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003566664A Pending JP2005524889A (ja) 2002-02-04 2003-02-04 電磁干渉エミッションを低減する方法及びシステム

Country Status (8)

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

Families Citing this family (65)

* 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
US8670493B2 (en) 2005-06-22 2014-03-11 Eices Research, Inc. Systems and/or methods of increased privacy wireless communications
US8233554B2 (en) 2010-03-29 2012-07-31 Eices Research, Inc. Increased capacity communications for OFDM-based wireless communications systems/methods/devices
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
US9374746B1 (en) 2008-07-07 2016-06-21 Odyssey Wireless, Inc. Systems/methods of spatial multiplexing
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
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
RU2015149619A (ru) * 2013-04-19 2017-05-24 Филипс Лайтинг Холдинг Б.В. Восстановление синхронизации из самосинхронизирующегося кодированного светового сигнала
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
EP4300160A3 (en) 2016-12-30 2024-05-29 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
KR20250138816A (ko) 2017-12-10 2025-09-22 매직 립, 인코포레이티드 광학 도파관들 상의 반사―방지 코팅들
CA3086206A1 (en) 2017-12-20 2019-06-27 Magic Leap, Inc. Insert for augmented reality viewing device
EP3766039B1 (en) 2018-03-15 2024-08-14 Magic Leap, Inc. Image correction due to deformation of components of a viewing device
WO2019232282A1 (en) 2018-05-30 2019-12-05 Magic Leap, Inc. Compact variable focus configurations
JP7319303B2 (ja) 2018-05-31 2023-08-01 マジック リープ， インコーポレイテッド レーダ頭部姿勢位置特定
EP3804306B1 (en) 2018-06-05 2023-12-27 Magic Leap, Inc. Homography transformation matrices based temperature calibration of a viewing system
JP7421505B2 (ja) 2018-06-08 2024-01-24 マジック リープ， インコーポレイテッド 自動化された表面選択設置およびコンテンツ配向設置を用いた拡張現実ビューア
US11714127B2 (en) 2018-06-12 2023-08-01 International Business Machines Corporation On-chip spread spectrum characterization
WO2020010097A1 (en) 2018-07-02 2020-01-09 Magic Leap, Inc. Pixel intensity modulation using modifying gain values
US11510027B2 (en) 2018-07-03 2022-11-22 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
WO2020023543A1 (en) 2018-07-24 2020-01-30 Magic Leap, Inc. Viewing device with dust seal integration
WO2020023545A1 (en) 2018-07-24 2020-01-30 Magic Leap, Inc. Temperature dependent calibration of movement detection devices
EP3831058B1 (en) 2018-08-02 2025-10-08 Magic Leap, Inc. A viewing system with interpupillary distance compensation based on head motion
EP3830631A4 (en) 2018-08-03 2021-10-27 Magic Leap, Inc. DRIFT CORRECTION BASED ON UNMERGED LAYING OF MELTED LAYING OF A TOTEM IN A USER INTERACTION SYSTEM
US12016719B2 (en) 2018-08-22 2024-06-25 Magic Leap, Inc. Patient viewing system
CN113196138B (zh) 2018-11-16 2023-08-25 奇跃公司 用于保持图像清晰度的图像尺寸触发的澄清
WO2020132484A1 (en) 2018-12-21 2020-06-25 Magic Leap, Inc. Air pocket structures for promoting total internal reflection in a waveguide
EP3921720B1 (en) * 2019-02-06 2024-05-22 Magic Leap, Inc. Target intent-based clock speed determination and adjustment to limit total heat generated by multiple processors
CN113544766B (zh) 2019-03-12 2024-12-03 奇跃公司 在第一和第二增强现实观看器之间配准本地内容
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
JP2022530900A (ja) 2019-05-01 2022-07-04 マジック リープ， インコーポレイテッド コンテンツプロビジョニングシステムおよび方法
US11152855B2 (en) * 2019-05-21 2021-10-19 Texas Instruments Incorporated Multiple dithering profile signal generation
CN114174895B (zh) 2019-07-26 2025-07-08 奇跃公司 用于增强现实的系统和方法
JP7635230B2 (ja) 2019-11-14 2025-02-25 マジック リープ， インコーポレイテッド 仮想および拡張現実のためのシステムおよび方法
WO2021097323A1 (en) 2019-11-15 2021-05-20 Magic Leap, Inc. A 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
TWI805148B (zh) * 2021-05-04 2023-06-11 立錡科技股份有限公司 展頻切換式電源轉換電路、時脈產生電路及時脈產生方法
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
AU2240797A (en) * 1996-05-06 1997-11-26 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
US6167103A (en) * 1998-10-08 2000-12-26 Lexmark International, Inc. Variable spread spectrum clock
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
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

Similar Documents

Publication Publication Date Title
JP2005524889A5 (https=)
US8583712B2 (en) Multi-bit sampling of oscillator jitter for random number generation
CN101019099B (zh) 用于生成伪随机数的方法和装置
CN110045591A (zh) 使用具有循环延迟的时间数字转换器
JP2002290282A5 (https=)
Bock et al. An offset-compensated oscillator-based random bit source for security applications
JPH04229495A (ja) 線形帰還シフト・レジスタの状態を模擬する方法および装置
JP3502065B2 (ja) 乱数発生装置
WO2005076474A1 (en) Apparatus for providing a random bit stream
JPH08181679A (ja) 疑似乱数雑音発生装置
US20080201395A1 (en) Method and apparatus for distributing random elements
JPH0758669A (ja) デジタルマッチドフィルタ
KR20050084153A (ko) 진정한 난수 생성 방법 및 시스템
US20150109040A1 (en) Self-feedback random generator and method thereof
Khani et al. Digital realization of twisted tent map and ship map with LFSR as a pseudo-chaos generator
RU2092892C1 (ru) Генератор равномерно распределенных случайных чисел
EP1361507A3 (en) Pseudo-random number generator with low power mode
KR100320430B1 (ko) 의사잡음 코드 발생 방법
KR940012170A (ko) 유한체상의 역수 산출방법 및 장치
KR20010110351A (ko) 동기 검출 디바이스
KR200222679Y1 (ko) 입력신호의 상승에지 및 하강에지의 선택적 검출장치
Jayasanthi et al. Low-power DSSS transmitter and its VLSI implementation
US20250123807A1 (en) Random number generator and noise generator
Alami Hassani et al. Contribution to synchronization and tracking modelisation in a CDMA receiver
RU2248661C2 (ru) Преобразователь частоты