DE60141775D1 - Kommunikationssystem, Mehrpegelsignal und Mehrpegelsignaltreiber mit Entzerrung oder Übersprechauslöschung - Google Patents

Kommunikationssystem, Mehrpegelsignal und Mehrpegelsignaltreiber mit Entzerrung oder Übersprechauslöschung

Info

Publication number
DE60141775D1
DE60141775D1 DE60141775T DE60141775T DE60141775D1 DE 60141775 D1 DE60141775 D1 DE 60141775D1 DE 60141775 T DE60141775 T DE 60141775T DE 60141775 T DE60141775 T DE 60141775T DE 60141775 D1 DE60141775 D1 DE 60141775D1
Authority
DE
Germany
Prior art keywords
level signal
equalization
communication system
crosstalk cancellation
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.)
Expired - Lifetime
Application number
DE60141775T
Other languages
English (en)
Inventor
Carl Werner
Mark Horowitz
Park Chau
Scott Best
H J Liaw
Stefanos Sidiropoulos
Jared Levan Zerbe
Jun Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rambus Inc
Original Assignee
Rambus Inc
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
Priority claimed from US09/655,010 external-priority patent/US6772351B1/en
Application filed by Rambus Inc filed Critical Rambus Inc
Priority claimed from PCT/US2001/027478 external-priority patent/WO2002021782A2/en
Application granted granted Critical
Publication of DE60141775D1 publication Critical patent/DE60141775D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03878Line equalisers; line build-out devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/0335Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03356Baseband transmission
    • H04L2025/03363Multilevel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/03433Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439Fixed structures
    • H04L2025/03445Time domain
    • H04L2025/03471Tapped delay lines
    • H04L2025/03477Tapped delay lines not time-recursive
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264Arrangements for coupling to transmission lines
    • H04L25/028Arrangements specific to the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03343Arrangements at the transmitter end
DE60141775T 2000-09-05 2001-09-05 Kommunikationssystem, Mehrpegelsignal und Mehrpegelsignaltreiber mit Entzerrung oder Übersprechauslöschung Expired - Lifetime DE60141775D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/655,010 US6772351B1 (en) 1999-10-19 2000-09-05 Method and apparatus for calibrating a multi-level current mode driver
US09/654,643 US7269212B1 (en) 2000-09-05 2000-09-05 Low-latency equalization in multi-level, multi-line communication systems
PCT/US2001/027478 WO2002021782A2 (en) 2000-09-05 2001-09-05 Calibration of a multi-level current mode driver

Publications (1)

Publication Number Publication Date
DE60141775D1 true DE60141775D1 (de) 2010-05-20

Family

ID=38473308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60141775T Expired - Lifetime DE60141775D1 (de) 2000-09-05 2001-09-05 Kommunikationssystem, Mehrpegelsignal und Mehrpegelsignaltreiber mit Entzerrung oder Übersprechauslöschung

Country Status (3)

Country Link
US (1) US7269212B1 (de)
AT (1) ATE463911T1 (de)
DE (1) DE60141775D1 (de)

Families Citing this family (115)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7124221B1 (en) 1999-10-19 2006-10-17 Rambus Inc. Low latency multi-level communication interface
US8861667B1 (en) 2002-07-12 2014-10-14 Rambus Inc. Clock data recovery circuit with equalizer clock calibration
US7292629B2 (en) * 2002-07-12 2007-11-06 Rambus Inc. Selectable-tap equalizer
US7126378B2 (en) 2003-12-17 2006-10-24 Rambus, Inc. High speed signaling system with adaptive transmit pre-emphasis
US8098723B2 (en) * 2006-01-12 2012-01-17 Agere Systems Inc. Receiver employing non-pilot reference channels for equalizing a received signal
US20080069197A1 (en) * 2006-09-20 2008-03-20 Agere Systems Inc. Equalizer for equalizing multiple received versions of a signal
US20080075159A1 (en) * 2006-09-21 2008-03-27 Uwe Sontowski Receiver having multiple stages of equalization with tap coefficient copying
US7813422B2 (en) * 2007-02-23 2010-10-12 Agere Systems Inc. Adaptive equalizer with tap coefficient averaging
KR100897280B1 (ko) * 2007-09-04 2009-05-14 주식회사 하이닉스반도체 리시버 회로
KR101006430B1 (ko) * 2007-09-04 2011-01-06 주식회사 하이닉스반도체 리시버 회로
KR100915814B1 (ko) * 2007-09-07 2009-09-07 주식회사 하이닉스반도체 반도체 메모리 장치의 데이터 출력 드라이버 제어회로
KR20090049290A (ko) * 2007-11-13 2009-05-18 삼성전자주식회사 멀티 레벨 펄스 진폭 변조 트랜스시버 및 데이터 송수신방법
US8009763B2 (en) * 2008-04-02 2011-08-30 Oracle America, Inc. Method and apparatus for equalizing a high speed serial data link
KR101355681B1 (ko) 2008-07-02 2014-01-27 램버스 인코포레이티드 용량-결합 크로스토크 소거
KR100951668B1 (ko) * 2008-10-14 2010-04-07 주식회사 하이닉스반도체 반도체 메모리 장치의 버퍼
KR100995658B1 (ko) * 2008-11-13 2010-11-19 주식회사 하이닉스반도체 반도체 메모리 장치의 버퍼
KR101053524B1 (ko) * 2009-06-08 2011-08-03 주식회사 하이닉스반도체 반도체 버퍼 회로
US9288089B2 (en) 2010-04-30 2016-03-15 Ecole Polytechnique Federale De Lausanne (Epfl) Orthogonal differential vector signaling
US8593305B1 (en) 2011-07-05 2013-11-26 Kandou Labs, S.A. Efficient processing and detection of balanced codes
US9251873B1 (en) 2010-05-20 2016-02-02 Kandou Labs, S.A. Methods and systems for pin-efficient memory controller interface using vector signaling codes for chip-to-chip communications
US9288082B1 (en) 2010-05-20 2016-03-15 Kandou Labs, S.A. Circuits for efficient detection of vector signaling codes for chip-to-chip communication using sums of differences
US9362962B2 (en) 2010-05-20 2016-06-07 Kandou Labs, S.A. Methods and systems for energy-efficient communications interface
US9246713B2 (en) 2010-05-20 2016-01-26 Kandou Labs, S.A. Vector signaling with reduced receiver complexity
US9077386B1 (en) 2010-05-20 2015-07-07 Kandou Labs, S.A. Methods and systems for selection of unions of vector signaling codes for power and pin efficient chip-to-chip communication
US9450744B2 (en) 2010-05-20 2016-09-20 Kandou Lab, S.A. Control loop management and vector signaling code communications links
WO2011151469A1 (en) 2010-06-04 2011-12-08 Ecole Polytechnique Federale De Lausanne Error control coding for orthogonal differential vector signaling
US9275720B2 (en) 2010-12-30 2016-03-01 Kandou Labs, S.A. Differential vector storage for dynamic random access memory
US8803490B2 (en) * 2011-06-30 2014-08-12 Broadcom Corporation Current-mode active termination
US9843315B2 (en) 2011-11-01 2017-12-12 Rambus Inc. Data transmission using delayed timing signals
US9268683B1 (en) 2012-05-14 2016-02-23 Kandou Labs, S.A. Storage method and apparatus for random access memory using codeword storage
US8964818B2 (en) * 2012-11-30 2015-02-24 Broadcom Corporation Use of multi-level modulation signaling for short reach data communications
EP2926260B1 (de) 2013-01-17 2019-04-03 Kandou Labs S.A. Verfahren und systeme für eine chip-zu-chip- kommunikation mit reduzierten störsignalen bei gleichzeitigem schalten
CN105122758B (zh) 2013-02-11 2018-07-10 康杜实验室公司 高带宽芯片间通信接口方法和系统
EP2979388B1 (de) 2013-04-16 2020-02-12 Kandou Labs, S.A. Verfahren und systeme für eine kommunikationsschnittstelle mit hoher bandbreite
EP2997704B1 (de) 2013-06-25 2020-12-16 Kandou Labs S.A. Vektorsignalisierung mit reduzierter empfängerkomplexität
US9806761B1 (en) 2014-01-31 2017-10-31 Kandou Labs, S.A. Methods and systems for reduction of nearest-neighbor crosstalk
CN105993151B (zh) 2014-02-02 2019-06-21 康杜实验室公司 低isi比低功率芯片间通信方法和装置
WO2015131203A1 (en) 2014-02-28 2015-09-03 Kandou Lab, S.A. Clock-embedded vector signaling codes
EP2924881A1 (de) * 2014-03-26 2015-09-30 IMEC vzw Verbesserungen bei oder in bezug auf signalverarbeitung
US11240076B2 (en) 2014-05-13 2022-02-01 Kandou Labs, S.A. Vector signaling code with improved noise margin
US9509437B2 (en) 2014-05-13 2016-11-29 Kandou Labs, S.A. Vector signaling code with improved noise margin
US9148087B1 (en) 2014-05-16 2015-09-29 Kandou Labs, S.A. Symmetric is linear equalization circuit with increased gain
US9112550B1 (en) 2014-06-25 2015-08-18 Kandou Labs, SA Multilevel driver for high speed chip-to-chip communications
CN106797352B (zh) 2014-07-10 2020-04-07 康杜实验室公司 高信噪特性向量信令码
US9432082B2 (en) 2014-07-17 2016-08-30 Kandou Labs, S.A. Bus reversable orthogonal differential vector signaling codes
KR101943048B1 (ko) 2014-07-21 2019-01-28 칸도우 랩스 에스에이 다분기 데이터 전송
CN106576087B (zh) 2014-08-01 2019-04-12 康杜实验室公司 带内嵌时钟的正交差分向量信令码
US9674014B2 (en) 2014-10-22 2017-06-06 Kandou Labs, S.A. Method and apparatus for high speed chip-to-chip communications
US9832046B2 (en) 2015-06-26 2017-11-28 Kandou Labs, S.A. High speed communications system
US9553742B1 (en) * 2015-09-15 2017-01-24 Inphi Corporation Method and apparatus for independent rise and fall waveform shaping
EP3357064B1 (de) 2015-09-29 2022-03-16 Rambus Inc. Sender mit selbstausgelöstem übergangsentzerrer
US9557760B1 (en) 2015-10-28 2017-01-31 Kandou Labs, S.A. Enhanced phase interpolation circuit
US9577815B1 (en) 2015-10-29 2017-02-21 Kandou Labs, S.A. Clock data alignment system for vector signaling code communications link
US10055372B2 (en) 2015-11-25 2018-08-21 Kandou Labs, S.A. Orthogonal differential vector signaling codes with embedded clock
WO2017132292A1 (en) 2016-01-25 2017-08-03 Kandou Labs, S.A. Voltage sampler driver with enhanced high-frequency gain
US9559880B1 (en) * 2016-03-04 2017-01-31 Inphi Corporation Eye modulation for pulse-amplitude modulation communication systems
US10003454B2 (en) 2016-04-22 2018-06-19 Kandou Labs, S.A. Sampler with low input kickback
WO2017185070A1 (en) 2016-04-22 2017-10-26 Kandou Labs, S.A. Calibration apparatus and method for sampler with adjustable high frequency gain
CN109314518B (zh) 2016-04-22 2022-07-29 康杜实验室公司 高性能锁相环
US10153591B2 (en) 2016-04-28 2018-12-11 Kandou Labs, S.A. Skew-resistant multi-wire channel
EP3449379B1 (de) 2016-04-28 2021-10-06 Kandou Labs S.A. Vektorsignalisierungscodes für dichtgeleitete drahtgruppen
CN109417521B (zh) 2016-04-28 2022-03-18 康杜实验室公司 低功率多电平驱动器
US9906358B1 (en) 2016-08-31 2018-02-27 Kandou Labs, S.A. Lock detector for phase lock loop
US10411922B2 (en) 2016-09-16 2019-09-10 Kandou Labs, S.A. Data-driven phase detector element for phase locked loops
CN114884539B (zh) 2016-10-19 2024-04-26 索尼半导体解决方案公司 信号处理装置、信号处理方法和程序
US10200188B2 (en) 2016-10-21 2019-02-05 Kandou Labs, S.A. Quadrature and duty cycle error correction in matrix phase lock loop
US10200218B2 (en) 2016-10-24 2019-02-05 Kandou Labs, S.A. Multi-stage sampler with increased gain
US10372665B2 (en) 2016-10-24 2019-08-06 Kandou Labs, S.A. Multiphase data receiver with distributed DFE
US9654310B1 (en) * 2016-11-19 2017-05-16 Nxp Usa, Inc. Analog delay cell and tapped delay line comprising the analog delay cell
US10439661B1 (en) * 2017-02-19 2019-10-08 Payam Heydari Low-power high-speed signaling scheme over transmission line with unmatched terminations
CN110741562B (zh) 2017-04-14 2022-11-04 康杜实验室公司 向量信令码信道的流水线式前向纠错
US10693473B2 (en) 2017-05-22 2020-06-23 Kandou Labs, S.A. Multi-modal data-driven clock recovery circuit
US10116468B1 (en) 2017-06-28 2018-10-30 Kandou Labs, S.A. Low power chip-to-chip bidirectional communications
US10686583B2 (en) 2017-07-04 2020-06-16 Kandou Labs, S.A. Method for measuring and correcting multi-wire skew
US10693587B2 (en) 2017-07-10 2020-06-23 Kandou Labs, S.A. Multi-wire permuted forward error correction
US10447512B2 (en) 2017-08-07 2019-10-15 Micron Technology, Inc. Channel equalization for multi-level signaling
US10425260B2 (en) 2017-08-07 2019-09-24 Micron Technology, Inc. Multi-level signaling in memory with wide system interface
US10403337B2 (en) 2017-08-07 2019-09-03 Micron Technology, Inc. Output driver for multi-level signaling
US10277435B2 (en) 2017-08-07 2019-04-30 Micron Technology, Inc. Method to vertically align multi-level cells
US10530617B2 (en) 2017-08-07 2020-01-07 Micron Technology, Inc. Programmable channel equalization for multi-level signaling
US10203226B1 (en) 2017-08-11 2019-02-12 Kandou Labs, S.A. Phase interpolation circuit
US10496583B2 (en) 2017-09-07 2019-12-03 Kandou Labs, S.A. Low power multilevel driver for generating wire signals according to summations of a plurality of weighted analog signal components having wire-specific sub-channel weights
US11403241B2 (en) 2017-10-02 2022-08-02 Micron Technology, Inc. Communicating data with stacked memory dies
US10355893B2 (en) 2017-10-02 2019-07-16 Micron Technology, Inc. Multiplexing distinct signals on a single pin of a memory device
US10446198B2 (en) * 2017-10-02 2019-10-15 Micron Technology, Inc. Multiple concurrent modulation schemes in a memory system
US10725913B2 (en) 2017-10-02 2020-07-28 Micron Technology, Inc. Variable modulation scheme for memory device access or operation
US10490245B2 (en) 2017-10-02 2019-11-26 Micron Technology, Inc. Memory system that supports dual-mode modulation
US10326623B1 (en) 2017-12-08 2019-06-18 Kandou Labs, S.A. Methods and systems for providing multi-stage distributed decision feedback equalization
US10467177B2 (en) 2017-12-08 2019-11-05 Kandou Labs, S.A. High speed memory interface
KR102498475B1 (ko) 2017-12-28 2023-02-09 칸도우 랩스 에스에이 동기식으로 스위칭된 다중 입력 복조 비교기
US10554380B2 (en) 2018-01-26 2020-02-04 Kandou Labs, S.A. Dynamically weighted exclusive or gate having weighted output segments for phase detection and phase interpolation
KR20190103593A (ko) 2018-02-28 2019-09-05 에스케이하이닉스 주식회사 반도체장치 및 반도체시스템
US10931249B2 (en) 2018-06-12 2021-02-23 Kandou Labs, S.A. Amplifier with adjustable high-frequency gain using varactor diodes
KR20210019520A (ko) 2018-06-12 2021-02-22 칸도우 랩스 에스에이 다중-와이어 버스 상의 직교 코드에 대한 수동 다중-입력 비교기
US10840971B2 (en) 2018-08-21 2020-11-17 Micron Technology, Inc. Pre-distortion for multi-level signaling
US11183983B2 (en) 2018-09-10 2021-11-23 Kandou Labs, S.A. Programmable continuous time linear equalizer having stabilized high-frequency peaking for controlling operating current of a slicer
WO2020117604A1 (en) 2018-12-04 2020-06-11 Rambus Inc. Method and system for balancing power-supply loading
US10887137B2 (en) 2019-03-15 2021-01-05 Rambus Inc. Edge enhancement for signal transmitter
US11855056B1 (en) 2019-03-15 2023-12-26 Eliyan Corporation Low cost solution for 2.5D and 3D packaging using USR chiplets
US10680634B1 (en) 2019-04-08 2020-06-09 Kandou Labs, S.A. Dynamic integration time adjustment of a clocked data sampler using a static analog calibration circuit
US10608849B1 (en) 2019-04-08 2020-03-31 Kandou Labs, S.A. Variable gain amplifier and sampler offset calibration without clock recovery
US10574487B1 (en) 2019-04-08 2020-02-25 Kandou Labs, S.A. Sampler offset calibration during operation
US10721106B1 (en) 2019-04-08 2020-07-21 Kandou Labs, S.A. Adaptive continuous time linear equalization and channel bandwidth control
US10623217B1 (en) * 2019-05-29 2020-04-14 Nvidia Corp. Proportional AC-coupled edge-boosting transmit equalization for multi-level pulse-amplitude modulated signaling
US11450380B2 (en) * 2020-07-27 2022-09-20 Micron Technology, Inc. Apparatuses, systems, and methods for frequency-dependent signal modulation
US11477059B2 (en) 2020-12-09 2022-10-18 Rambus Inc. Circuits and methods for detecting and unlocking edge-phase lock
US11303484B1 (en) 2021-04-02 2022-04-12 Kandou Labs SA Continuous time linear equalization and bandwidth adaptation using asynchronous sampling
US11831323B2 (en) 2021-04-13 2023-11-28 Cadence Design Systems, Inc. Methods and circuits for reducing clock jitter
US11374800B1 (en) 2021-04-14 2022-06-28 Kandou Labs SA Continuous time linear equalization and bandwidth adaptation using peak detector
US11456708B1 (en) 2021-04-30 2022-09-27 Kandou Labs SA Reference generation circuit for maintaining temperature-tracked linearity in amplifier with adjustable high-frequency gain
US11855043B1 (en) 2021-05-06 2023-12-26 Eliyan Corporation Complex system-in-package architectures leveraging high-bandwidth long-reach die-to-die connectivity over package substrates
KR20230000322A (ko) 2021-06-24 2023-01-02 에스케이하이닉스 주식회사 데이터정렬동작을 수행하기 위한 전자장치
US11842986B1 (en) 2021-11-25 2023-12-12 Eliyan Corporation Multi-chip module (MCM) with interface adapter circuitry
US11841815B1 (en) 2021-12-31 2023-12-12 Eliyan Corporation Chiplet gearbox for low-cost multi-chip module applications
US11831472B1 (en) 2022-08-30 2023-11-28 Kandou Labs SA Pre-scaler for orthogonal differential vector signalling

Family Cites Families (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912684A (en) 1953-01-23 1959-11-10 Digital Control Systems Inc Single channel transmission system
US3051901A (en) 1958-06-24 1962-08-28 Bell Telephone Labor Inc Encoder for pulse code modulation
US3078378A (en) 1960-06-28 1963-02-19 Lockheed Aircraft Corp Electronic multiplexer system for converting multi-channel data into a single channel composite signal
US3267459A (en) 1962-12-18 1966-08-16 Ibm Data transmission system
GB1159251A (en) 1965-07-29 1969-07-23 Post Office Improvements in or relating to Signalling Systems
US3697874A (en) 1966-12-29 1972-10-10 Nippon Electric Co Multilevel code conversion system
US3560856A (en) 1966-12-29 1971-02-02 Nippon Electric Co Multilevel signal transmission system
US3510585A (en) 1967-02-02 1970-05-05 Xerox Corp Multi-level data encoder-decoder with pseudo-random test pattern generation capability
US3508076A (en) 1967-04-26 1970-04-21 Rca Corp Logic circuitry
US3571725A (en) 1967-05-25 1971-03-23 Nippon Electric Co Multilevel signal transmission system
US3876944A (en) 1967-07-27 1975-04-08 Xerox Corp Dibinary encoding technique
FR1559633A (de) 1967-10-12 1969-03-14
US3587088A (en) 1967-12-21 1971-06-22 Bell Telephone Labor Inc Multilevel pulse transmission systems employing codes having three or more alphabets
GB1245347A (en) 1968-07-01 1971-09-08 Nippon Telegraph & Telephone Improved high speed logic circuit device
USRE30182E (en) 1969-06-24 1979-12-25 Bell Telephone Laboratories, Incorporated Precoded ternary data transmission
US3753113A (en) 1970-06-20 1973-08-14 Nippon Electric Co Multilevel code signal transmission system
JPS5013046B1 (de) 1970-07-31 1975-05-16
FR2128131B1 (de) 1971-03-05 1975-02-21 Lignes Telegraph Telephon
JPS5125283B1 (de) 1971-04-30 1976-07-30
JPS5034366B1 (de) 1971-04-30 1975-11-07
JPS5034367B1 (de) 1971-04-30 1975-11-07
US3988676A (en) 1971-05-17 1976-10-26 Milgo Electronic Corporation Coding and decoding system with multi-level format
GB1360260A (en) 1971-09-23 1974-07-17 Standard Telephones Cables Ltd Multilevel pcm system
JPS4918256A (de) 1972-06-09 1974-02-18
US3832490A (en) 1972-10-13 1974-08-27 Co Ind Des Communication Cit A Coder for increase of transmission speed
US3927401A (en) 1972-11-24 1975-12-16 Gen Motors Corp Method and apparatus for coding and decoding digital data
JPS5210603B2 (de) 1973-02-09 1977-03-25
JPS5196275A (de) 1975-02-20 1976-08-24
JPS524103A (en) 1975-05-29 1977-01-13 Tokai Rika Co Ltd Digital signal transmission system and its equipment
IT1059489B (it) 1976-04-22 1982-05-31 C S E L T Spa Sistema per l aggiunta di canali di informazione in una trasmissio ne numerica multilivello
US4097859A (en) 1976-11-01 1978-06-27 Burroughs Corporation Three-level to two-level decoder
US4086587A (en) 1977-02-28 1978-04-25 Gte Automatic Electric Laboratories Incorporated Apparatus and method for generating a high-accuracy 7-level correlative signal
JPS53144232A (en) 1977-04-28 1978-12-15 Toshiba Corp Sensor circuit for multi-value signal charge transfer device
US4280221A (en) 1979-05-31 1981-07-21 The Boeing Company Digital data communication system
US4408135A (en) 1979-12-26 1983-10-04 Tokyo Shibaura Denki Kabushiki Kaisha Multi-level signal generating circuit
DE3030172A1 (de) 1980-08-08 1982-02-25 Siemens AG, 1000 Berlin und 8000 München Regenerator fuer mehrstufige digitale signale
US4438491A (en) 1980-10-14 1984-03-20 Constant James N Computer having plural IC chips with each chip including a transceiver
US4382249A (en) 1980-12-22 1983-05-03 Honeywell Information Systems Inc. Apparatus and method for decoding information
US4373152A (en) 1980-12-22 1983-02-08 Honeywell Information Systems Inc. Binary to one out of four converter
US4408189A (en) 1981-05-18 1983-10-04 Northern Telecom Limited Method and apparatus for code conversion of binary to multilevel signals
NZ198054A (en) 1981-08-17 1986-05-09 New Zealand Dev Finance Polernary logic:multilevel circuits
JPS58501698A (ja) 1981-10-08 1983-10-06 クリエイティプ・ストラテジィズ・プロプライエタリ−・リミテッド デ−タ通信システム
US4481625A (en) 1981-10-21 1984-11-06 Elxsi High speed data bus system
US4528550A (en) 1983-10-31 1985-07-09 Northern Telecom Limited Method and apparatus for code conversion of binary of multilevel signals
JPH0681164B2 (ja) 1984-02-01 1994-10-12 株式会社日立製作所 符号変調方式
US4602374A (en) 1984-02-27 1986-07-22 Nippon Telegraph & Telephone Public Corporation Multi-level decision circuit
JPS60206247A (ja) 1984-03-30 1985-10-17 Nec Corp デジタル信号検出回路
JPS61112414A (ja) 1984-11-06 1986-05-30 Nec Corp 自動レベル制御回路
US4748637A (en) 1985-11-29 1988-05-31 Conklin Instrument Corporation Digital subscriber loop termination device
JPS62250748A (ja) 1986-04-24 1987-10-31 Matsushita Electric Ind Co Ltd 符号変換装置
US4821286A (en) 1986-05-27 1989-04-11 American Telephone And Telegraph Company Quaternary signal regenerator
FR2602940B1 (fr) 1986-07-28 1988-11-10 Cit Alcatel Circuit logique de detection pour un systeme de transmission synchrone de donnees a symboles ternaires et controle des interferences intersymboles de type reponse partielle classe 1 n = 2
US4860309A (en) 1986-09-17 1989-08-22 Costello John F Trinary bus communication system
DE3776782D1 (de) 1986-12-12 1992-03-26 Siemens Nixdorf Inf Syst Sende-empfangs-einrichtung fuer ein busleitungssystem.
US4825450A (en) 1987-03-12 1989-04-25 The Boeing Company Binary data communication system
NL8701331A (nl) 1987-06-09 1989-01-02 Philips Nv Datatransmissiesysteem bevattende een beslissingsteruggekoppelde egalisator en gebruik makende van partieleresponsie technieken.
KR900006293B1 (ko) 1987-06-20 1990-08-27 삼성전자 주식회사 씨모오스 디램의 데이터 전송회로
US4823028A (en) 1987-12-04 1989-04-18 Tektronix, Inc. Multilevel logic circuit with floating node voltage clamp
EP0329910B1 (de) 1988-02-26 1991-05-29 International Business Machines Corporation Zweistufiger Leserverstärker für RAM-Speicher
US5126974A (en) 1989-01-20 1992-06-30 Hitachi, Ltd. Sense amplifier for a memory device
US5172338B1 (en) 1989-04-13 1997-07-08 Sandisk Corp Multi-state eeprom read and write circuits and techniques
US5045728A (en) 1989-05-17 1991-09-03 Ncr Corporation Trinary to binary level conversion circuit
US5115450A (en) 1989-07-06 1992-05-19 Advanced Micro Devices, Inc. High speed digital to analog to digital communication system
US5023488A (en) 1990-03-30 1991-06-11 Xerox Corporation Drivers and receivers for interfacing VLSI CMOS circuits to transmission lines
US5046050A (en) 1990-04-10 1991-09-03 National Semiconductor Corporation Shared BiCMOS sense amplifier
IL96808A (en) 1990-04-18 1996-03-31 Rambus Inc Introductory / Origin Circuit Agreed Using High-Performance Brokerage
NL9001608A (nl) 1990-07-16 1992-02-17 Philips Nv Ontvanger voor meerwaardige digitale signalen.
JPH0474384A (ja) * 1990-07-17 1992-03-09 Toshiba Corp 半導体集積回路装置
US5121411A (en) 1990-07-24 1992-06-09 Motorola, Inc. Multi-edge clock recovery method
SE9002559D0 (sv) 1990-08-02 1990-08-02 Carlstedt Elektronik Ab Kommunikationslaenk
GB2250898A (en) 1990-12-12 1992-06-17 Stc Plc Line coding scheme.
US5230008A (en) 1991-01-18 1993-07-20 Motorola, Inc. Multi-amplitude sample generating apparatus and method
US5295157A (en) 1991-06-04 1994-03-15 Sony Corporation Equalization method utilizing a delay circuit
US5221865A (en) 1991-06-21 1993-06-22 Crosspoint Solutions, Inc. Programmable input/output buffer circuit with test capability
US5194765A (en) 1991-06-28 1993-03-16 At&T Bell Laboratories Digitally controlled element sizing
JPH0514420A (ja) 1991-07-03 1993-01-22 Sharp Corp シリアル信号伝送装置
US5280500A (en) 1991-10-10 1994-01-18 Crescendo Communications, Inc. Method and apparatus for multilevel encoding for a local area network
EP0543070A1 (de) 1991-11-21 1993-05-26 International Business Machines Corporation Codierungsystem und -Verfahren, das quaternäre Codes anwendet
US5426739A (en) 1992-03-16 1995-06-20 Opti, Inc. Local bus - I/O Bus Computer Architecture
US5254883A (en) 1992-04-22 1993-10-19 Rambus, Inc. Electrical current source circuitry for a bus
US5287108A (en) 1992-07-02 1994-02-15 National Semiconductor Corporation Multistep analog-to-digital converter with successive approximation register circuit for least significant bit resolution
JPH0685564A (ja) 1992-09-01 1994-03-25 Mitsubishi Electric Corp 増幅器回路
US5295155A (en) 1992-10-30 1994-03-15 International Business Machines Corporation Multi-level digital data regeneration system
US5412689A (en) 1992-12-23 1995-05-02 International Business Machines Corporation Modal propagation of information through a defined transmission medium
US5508570A (en) 1993-01-27 1996-04-16 Micro Linear Corporation Differential amplifier based integrator having a left-half plane pole
US5315175A (en) 1993-03-18 1994-05-24 Northern Telecom Limited Quasi-differential bus
JPH07131471A (ja) 1993-03-19 1995-05-19 Hitachi Ltd 信号伝送方法と信号伝送回路及びそれを用いた情報処理システム
US5425056A (en) 1993-03-23 1995-06-13 Motorola, Inc. Method and apparatus for generating threshold levels in a radio communication device for receiving four-level signals
US5406140A (en) 1993-06-07 1995-04-11 National Semiconductor Corporation Voltage translation and overvoltage protection
FR2707024B1 (de) 1993-06-22 1995-09-01 Suisse Electronique Microtech
US5796781A (en) * 1993-07-09 1998-08-18 Technitrol, Inc. Data receiver having bias restoration
KR100311072B1 (ko) 1993-08-31 2001-12-15 윤종용 다치중첩진폭변조의기저대역신호발생장치
JPH07202681A (ja) 1993-11-30 1995-08-04 Electron & Telecommun Res Inst 論理演算器および演算方法
FR2718910B1 (fr) 1994-04-18 1996-05-31 Sat Dispositif de décision à seuils adaptatifs pour modulation à multiétat.
US5699386A (en) * 1994-04-19 1997-12-16 Gec Plessey Semiconductors, Inc. System and method for data signal communication using a high-pass function before a low-pass function with quantized feedback technique
US5525983A (en) 1994-05-25 1996-06-11 3Com Corporation Method and apparatus for implementing a type 8B6T encoder and decoder
US5553097A (en) 1994-06-01 1996-09-03 International Business Machines Corporation System and method for transporting high-bandwidth signals over electrically conducting transmission lines
US5497119A (en) 1994-06-01 1996-03-05 Intel Corporation High precision voltage regulation circuit for programming multilevel flash memory
US5539774A (en) 1994-06-15 1996-07-23 International Business Machines Corporation Dual decision equalization method and device
US5640605A (en) 1994-08-26 1997-06-17 3Com Corporation Method and apparatus for synchronized transmission of data between a network adaptor and multiple transmission channels using a shared clocking frequency and multilevel data encoding
US5608755A (en) 1994-10-14 1997-03-04 Rakib; Selim Method and apparatus for implementing carrierless amplitude/phase encoding in a network
US5596439A (en) 1995-08-01 1997-01-21 Viasat, Inc. Self-interference cancellation for two-party relayed communication
US5732027A (en) * 1996-12-30 1998-03-24 Cypress Semiconductor Corporation Memory having selectable output strength
US5835440A (en) * 1997-08-06 1998-11-10 Micron Technology, Inc. Memory device equilibration circuit and method
TW440767B (en) * 1998-06-02 2001-06-16 Fujitsu Ltd Method of and apparatus for correctly transmitting signals at high speed without waveform distortion
KR100318321B1 (ko) * 1999-06-08 2001-12-22 김영환 반도체 메모리의 비트 라인 균등화 신호 제어회로
US6414890B2 (en) * 1999-12-27 2002-07-02 Mitsubishi Denki Kabushiki Kaisha Semiconductor memory device capable of reliably performing burn-in test at wafer level

Also Published As

Publication number Publication date
US7269212B1 (en) 2007-09-11
ATE463911T1 (de) 2010-04-15

Similar Documents

Publication Publication Date Title
DE60141775D1 (de) Kommunikationssystem, Mehrpegelsignal und Mehrpegelsignaltreiber mit Entzerrung oder Übersprechauslöschung
TW328132B (en) Integrated circuit chip with adaptive input-output port
GB2431951A (en) Acoustic telemetry wellbore system employing one or more low-frquency acoustic attenuators
TW325547B (en) Modular bus with single or double parallel termination
WO2001097474A3 (en) Adaptive precoding
DE3482651D1 (de) Uebertragungssystem zum gleichzeitigen senden und empfangen von daten- und sprachsignalen ueber zweidrahtleitungen.
MXPA05004090A (es) Repetidores que comparten medio comun para comunicaciones.
WO1996029808A3 (en) Networking computers via shared use of voice telephone lines
CA2257301A1 (en) Acoustic condition sensor employing a plurality of mutually non-orthogonal waves
GB2450008A (en) Memory system with dynamic termination
CA2475183A1 (en) A method to reduce acoustic coupling in audio conferencing systems
ID26895A (id) Pengisyaratan modulasi impedansi
WO2005036761A3 (en) System, method and apparatus for crosstalk cancellation
ATE421817T1 (de) Redundanter serienbus
EP0930726A3 (de) Verfahren zur Echounterdrückung mit adaptiven FIR-Filtern
TW377534B (en) Channel training of multi-channel receiver system
GB2382965A (en) Far-end cross-talk cancellation for data transmission on multiple propogation modes
CA2116255A1 (en) Predistortion Technique for Communications Systems
WO2007051693A3 (en) Adaptive asynchronous equalization using leakage
WO1999060720A3 (en) Echo cancellation in digital data transmission system
WO2002021782A3 (en) Calibration of a multi-level current mode driver
DE50300320D1 (de) Buskopplung
MXPA02000007A (es) Transmision de datos en sistemas de transmision en linea.
ATE283596T1 (de) Leitungstreiber mit linearen übergängen
TW200515722A (en) Signal transmission structure

Legal Events

Date Code Title Description
8364 No opposition during term of opposition