BR7206569D0 - Sistemas de transmissao por modulacao em pulsos codificados em multi-niveis - Google Patents

Sistemas de transmissao por modulacao em pulsos codificados em multi-niveis

Info

Publication number
BR7206569D0
BR7206569D0 BR006569/72A BR656972A BR7206569D0 BR 7206569 D0 BR7206569 D0 BR 7206569D0 BR 006569/72 A BR006569/72 A BR 006569/72A BR 656972 A BR656972 A BR 656972A BR 7206569 D0 BR7206569 D0 BR 7206569D0
Authority
BR
Brazil
Prior art keywords
modulation
transmission systems
level encoded
encoded pulses
pulses
Prior art date
Application number
BR006569/72A
Other languages
English (en)
Portuguese (pt)
Inventor
P Norman
Original Assignee
Se
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 Se filed Critical Se
Publication of BR7206569D0 publication Critical patent/BR7206569D0/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/08—Amplitude regulation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
BR006569/72A 1971-09-23 1972-09-21 Sistemas de transmissao por modulacao em pulsos codificados em multi-niveis BR7206569D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4438971A GB1360260A (en) 1971-09-23 1971-09-23 Multilevel pcm system

Publications (1)

Publication Number Publication Date
BR7206569D0 true BR7206569D0 (pt) 1973-08-30

Family

ID=10433062

Family Applications (1)

Application Number Title Priority Date Filing Date
BR006569/72A BR7206569D0 (pt) 1971-09-23 1972-09-21 Sistemas de transmissao por modulacao em pulsos codificados em multi-niveis

Country Status (12)

Country Link
US (1) US3798544A (OSRAM)
AU (1) AU4603272A (OSRAM)
BR (1) BR7206569D0 (OSRAM)
CH (1) CH547586A (OSRAM)
DE (1) DE2245677A1 (OSRAM)
ES (1) ES406938A1 (OSRAM)
FR (1) FR2153357A1 (OSRAM)
GB (1) GB1360260A (OSRAM)
IE (1) IE36499B1 (OSRAM)
IT (1) IT967588B (OSRAM)
NL (1) NL7212895A (OSRAM)
ZA (1) ZA724949B (OSRAM)

Families Citing this family (36)

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Publication number Priority date Publication date Assignee Title
US3831145A (en) * 1973-07-20 1974-08-20 Bell Telephone Labor Inc Multilevel data transmission systems
JPS51107707A (en) * 1975-03-18 1976-09-24 Nippon Electric Co Pcm chukeishogaitansakuhoshiki oyobi fugohatsuseisochi
US4078157A (en) * 1976-10-18 1978-03-07 Gte Automatic Electric Laboratories Incorporated Method and apparatus for regenerating a modified duobinary signal
US4078159A (en) * 1976-10-18 1978-03-07 Gte Automatic Electric Laboratories Incorporated Modified duobinary repeatered span line
GB1592556A (en) * 1976-10-28 1981-07-08 Rixon Quadrature-amplitude-modulation data transmission systems and transmitters
US4123625A (en) * 1977-11-03 1978-10-31 Northern Telecom Limited Digital regenerator having improving noise immunity
AU569473B2 (en) * 1982-07-20 1988-02-04 Nec Corporation Cryptographic apparatus for binary data
US4763254A (en) * 1983-05-26 1988-08-09 Hitachi, Ltd. Information processing system with data storage on plural loop transmission line
US4631428A (en) * 1984-10-26 1986-12-23 International Business Machines Corporation Communication interface connecting binary logic unit through a trinary logic transmission channel
US4590601A (en) * 1984-12-24 1986-05-20 Gte Communication Systems Corporation Pseudo random framing detector circuit
US4719643A (en) * 1984-12-24 1988-01-12 Gte Communication Systems Corporation Pseudo random framing generator circuit
JPH0514420A (ja) * 1991-07-03 1993-01-22 Sharp Corp シリアル信号伝送装置
US5233626A (en) * 1992-05-11 1993-08-03 Space Systems/Loral Inc. Repeater diversity spread spectrum communication system
US5283807A (en) * 1992-10-21 1994-02-01 Tutankhamon Electronics, Inc. EMI suppression coding
US5796781A (en) * 1993-07-09 1998-08-18 Technitrol, Inc. Data receiver having bias restoration
US5859874A (en) * 1994-05-09 1999-01-12 Globalstar L.P. Multipath communication system optimizer
CA2193846C (en) * 1995-05-17 2004-02-17 Bradford L. Farris Rolling code security system
US5841874A (en) * 1996-08-13 1998-11-24 Motorola, Inc. Ternary CAM memory architecture and methodology
KR100282441B1 (ko) * 1997-10-29 2001-03-02 김영환 데이터 전송장치
US6661996B1 (en) 1998-07-14 2003-12-09 Globalstar L.P. Satellite communication system providing multi-gateway diversity to a mobile user terminal
DE69937749T2 (de) * 1998-10-27 2008-11-27 Intel Corporation, Santa Clara Verfahren zur verringerung von elektromagnetisch störenden strahlungen
US7161513B2 (en) * 1999-10-19 2007-01-09 Rambus Inc. Apparatus and method for improving resolution of a current mode driver
US7269212B1 (en) 2000-09-05 2007-09-11 Rambus Inc. Low-latency equalization in multi-level, multi-line communication systems
US6396329B1 (en) * 1999-10-19 2002-05-28 Rambus, Inc Method and apparatus for receiving high speed signals with low latency
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
US7362800B1 (en) 2002-07-12 2008-04-22 Rambus Inc. Auto-configured equalizer
US7292629B2 (en) * 2002-07-12 2007-11-06 Rambus Inc. Selectable-tap equalizer
US8422667B2 (en) 2005-01-27 2013-04-16 The Chamberlain Group, Inc. Method and apparatus to facilitate transmission of an encrypted rolling code
US9148409B2 (en) 2005-06-30 2015-09-29 The Chamberlain Group, Inc. Method and apparatus to facilitate message transmission and reception using different transmission characteristics
US20230336342A1 (en) 2005-01-27 2023-10-19 The Chamberlain Group Llc Method and apparatus to facilitate transmission of an encrypted rolling code
US9473333B2 (en) * 2008-02-11 2016-10-18 International Business Machines Corporation Communications system via data scrambling and associated methods
US10652743B2 (en) 2017-12-21 2020-05-12 The Chamberlain Group, Inc. Security system for a moveable barrier operator
US11074773B1 (en) 2018-06-27 2021-07-27 The Chamberlain Group, Inc. Network-based control of movable barrier operators for autonomous vehicles
WO2020028502A1 (en) 2018-08-01 2020-02-06 The Chamberlain Group, Inc. Movable barrier operator and transmitter pairing over a network
US10997810B2 (en) 2019-05-16 2021-05-04 The Chamberlain Group, Inc. In-vehicle transmitter training

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759047A (en) * 1950-12-27 1956-08-14 Bell Telephone Labor Inc Pulse transmission system and regenerative repeater therefor
DE1251814C2 (de) * 1964-02-12 1973-12-13 Fernmeldesystem mit pilotgesteuerter pegelregelung und mehreren parallel liegenden uebertragungsleitungen
US3679821A (en) * 1970-04-30 1972-07-25 Bell Telephone Labor Inc Transform coding of image difference signals
CA925212A (en) * 1970-06-22 1973-04-24 Western Electric Company, Incorporated Digital data scrambler-descrambler apparatus for improved error performance

Also Published As

Publication number Publication date
DE2245677A1 (de) 1973-06-14
GB1360260A (en) 1974-07-17
US3798544A (en) 1974-03-19
ZA724949B (en) 1973-04-25
NL7212895A (OSRAM) 1973-03-27
IE36499B1 (en) 1976-11-24
IT967588B (it) 1974-03-11
FR2153357A1 (OSRAM) 1973-05-04
ES406938A1 (es) 1975-09-01
IE36499L (en) 1973-03-23
CH547586A (de) 1974-03-29
AU4603272A (en) 1974-03-07

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