FR2345019B1 - - Google Patents

Info

Publication number
FR2345019B1
FR2345019B1 FR7608052A FR7608052A FR2345019B1 FR 2345019 B1 FR2345019 B1 FR 2345019B1 FR 7608052 A FR7608052 A FR 7608052A FR 7608052 A FR7608052 A FR 7608052A FR 2345019 B1 FR2345019 B1 FR 2345019B1
Authority
FR
France
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
Application number
FR7608052A
Other versions
FR2345019A1 (fr
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7608052A priority Critical patent/FR2345019A1/fr
Priority to BE1007971A priority patent/BE851724A/fr
Priority to LU76873A priority patent/LU76873A1/xx
Priority to GB10754/77A priority patent/GB1521671A/en
Priority to DE19772711086 priority patent/DE2711086A1/de
Priority to IT21226/77A priority patent/IT1077364B/it
Priority to US05/777,824 priority patent/US4122300A/en
Priority to CA274,100A priority patent/CA1075361A/fr
Priority to NL7702867A priority patent/NL7702867A/xx
Priority to DK121377A priority patent/DK121377A/da
Priority to JP2938377A priority patent/JPS52114201A/ja
Priority to IE582/77A priority patent/IE44724B1/en
Publication of FR2345019A1 publication Critical patent/FR2345019A1/fr
Application granted granted Critical
Publication of FR2345019B1 publication Critical patent/FR2345019B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Communication Control (AREA)
FR7608052A 1976-03-19 1976-03-19 Dispositif de transmission de donnees et application a la transmission de signaux analogiques et de donnees dans un reseau avec modulation delta Granted FR2345019A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7608052A FR2345019A1 (fr) 1976-03-19 1976-03-19 Dispositif de transmission de donnees et application a la transmission de signaux analogiques et de donnees dans un reseau avec modulation delta
BE1007971A BE851724A (fr) 1976-03-19 1977-02-23 Dispositif de transmission de donnees et application a la transmission de signaux analogiques et de donnees dans un reseau avec modulation delta
LU76873A LU76873A1 (fr) 1976-03-19 1977-03-02
DE19772711086 DE2711086A1 (de) 1976-03-19 1977-03-14 System zur uebertragung von digitaldaten ueber eine leitung
GB10754/77A GB1521671A (en) 1976-03-19 1977-03-14 Data transmission system and application thereof to the transmission of analogue signals and of data in a network with delta modulation
US05/777,824 US4122300A (en) 1976-03-19 1977-03-15 Data transmission system and application thereof to the transmission of analog signals and of data in a network with delta modulation
IT21226/77A IT1077364B (it) 1976-03-19 1977-03-15 Dispositivo di trasmisione di dati ed applicazione alla trasmissnione di segnali analogici e di dati in una rete con modulazione delta ed impianto relativo
CA274,100A CA1075361A (fr) 1976-03-19 1977-03-16 Transmission de donnees notamment avec modulation delta
NL7702867A NL7702867A (nl) 1976-03-19 1977-03-16 Inrichting voor de transmissie van gegevens.
DK121377A DK121377A (da) 1976-03-19 1977-03-18 Apparatur til datatransmission og anvendelse ved transmission af analoge signaler og af data i et kredslob med deltamodulation
JP2938377A JPS52114201A (en) 1976-03-19 1977-03-18 Data transmission system
IE582/77A IE44724B1 (en) 1976-03-19 1977-03-18 Data transmission system and application thereof to the transmission of analog signals and of data in a network with delta modulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7608052A FR2345019A1 (fr) 1976-03-19 1976-03-19 Dispositif de transmission de donnees et application a la transmission de signaux analogiques et de donnees dans un reseau avec modulation delta

Publications (2)

Publication Number Publication Date
FR2345019A1 FR2345019A1 (fr) 1977-10-14
FR2345019B1 true FR2345019B1 (fr) 1980-05-23

Family

ID=9170689

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7608052A Granted FR2345019A1 (fr) 1976-03-19 1976-03-19 Dispositif de transmission de donnees et application a la transmission de signaux analogiques et de donnees dans un reseau avec modulation delta

Country Status (12)

Country Link
US (1) US4122300A (fr)
JP (1) JPS52114201A (fr)
BE (1) BE851724A (fr)
CA (1) CA1075361A (fr)
DE (1) DE2711086A1 (fr)
DK (1) DK121377A (fr)
FR (1) FR2345019A1 (fr)
GB (1) GB1521671A (fr)
IE (1) IE44724B1 (fr)
IT (1) IT1077364B (fr)
LU (1) LU76873A1 (fr)
NL (1) NL7702867A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505222B1 (en) 1999-10-29 2003-01-07 International Business Machines Corporation Systems methods and computer program products for controlling undesirable bias in an equalizer
US6553518B1 (en) 1999-03-08 2003-04-22 International Business Machines Corporation Severe error detectors, methods and computer program products that use constellation specific error event thresholds to detect severe error events during demodulation of a signal comprising symbols from a plurality of symbol constellations
US6611563B1 (en) 1999-10-29 2003-08-26 International Business Machines Corporation Systems, methods and computer program products for data mode refinement of modem constellation points
US6650657B1 (en) 1999-10-29 2003-11-18 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modem signals
US6662322B1 (en) 1999-10-29 2003-12-09 International Business Machines Corporation Systems, methods, and computer program products for controlling the error rate in a communication device by adjusting the distance between signal constellation points
US6661847B1 (en) 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations
US6754258B1 (en) 1999-10-29 2004-06-22 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of digital impairments based on patterns
US6765955B1 (en) 1999-10-29 2004-07-20 International Business Machines Corporation Methods, systems and computer program products establishing a communication configuration for a modem connection to compensate for echo noise
US6792040B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Modems having a dual power mode capability and methods of operating same
US6792004B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of robbed-bit signaling based on proximity
US6816545B1 (en) 1999-10-29 2004-11-09 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modems based on clusters and/or skips in pulse code modulation signal levels
US6823004B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Methods, systems and computer program products for monitoring performance of a modem during a connection
US6826157B1 (en) 1999-10-29 2004-11-30 International Business Machines Corporation Systems, methods, and computer program products for controlling data rate reductions in a communication device by using a plurality of filters to detect short-term bursts of errors and long-term sustainable errors

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906886C2 (de) * 1979-02-22 1982-03-25 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Schaltungsanordnung zur Schrittakt-Gewinnung
DE3036614A1 (de) * 1980-09-29 1982-05-13 Siemens AG, 1000 Berlin und 8000 München Verfahren zur erkennung von digitalinformation bei einer digitalen informationsuebertragung, insbesondere informationsuebertragung in mobilfunk-kommunikationssystemen
DE3036612A1 (de) * 1980-09-29 1982-05-13 Siemens AG, 1000 Berlin und 8000 München Verfahren zur erkennung von digitalinformation bei einer digitalen informationsuebertragung, insbesondere informationsuebertragung in mobilfunk-kommunikationssystemen
DE3036655A1 (de) * 1980-09-29 1982-05-13 Siemens AG, 1000 Berlin und 8000 München Verfahren zur erkennung von digitalinformation bei einer digitalen informationsuebertragung, insbesondere informationsuebertragung in mobilfunk-kommunikationssystemen
US4361817A (en) * 1980-10-27 1982-11-30 Honeywell Inc. Bi-phase modulator/demodulator
US4363127A (en) * 1981-01-12 1982-12-07 Ford Aerospace & Communications Corporation Line signaling apparatus and techniques for digital data links
US4649550A (en) * 1982-12-22 1987-03-10 Amoco Corporation Telemetry scheme with slope modulated signal
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
US5022052A (en) * 1987-11-13 1991-06-04 Seismograph Service Corp. Analog signal binary transmission system using slope detection
US5970103A (en) 1996-09-06 1999-10-19 Townshend; Brent High speed communications system for analog subscriber connections
CA2266945C (fr) * 1994-12-09 2002-04-02 Brent Townshend Systeme de communication a grande vitesse pour la connexions analogiques entre abonnes
US6381267B1 (en) 1999-03-08 2002-04-30 International Business Machines Corporation Modems, methods, and computer program products for falling back to a lower data rate protocol upon detecting abnormal line conditions during startup
US6341360B1 (en) 1999-03-08 2002-01-22 International Business Machines Corporation Decision feedback equalizers, methods, and computer program products for detecting severe error events and preserving equalizer filter characteristics in response thereto
US7003030B2 (en) 1999-03-08 2006-02-21 Lenovo (Singapore) Pte. Ltd. Receivers, methods, and computer program products for an analog modem that receives data signals from a digital modem
US6389064B1 (en) 1999-03-08 2002-05-14 International Business Machines Corporation Modems, methods, and computer program products for identifying a signaling alphabet in variance with an ideal alphabet due to digital impairments
US6661837B1 (en) 1999-03-08 2003-12-09 International Business Machines Corporation Modems, methods, and computer program products for selecting an optimum data rate using error signals representing the difference between the output of an equalizer and the output of a slicer or detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866147A (en) * 1973-02-26 1975-02-11 Univ Sherbrooke Balanced correlated ternary coding system
US3937897A (en) * 1974-07-25 1976-02-10 North Electric Company Signal coding for telephone communication system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6553518B1 (en) 1999-03-08 2003-04-22 International Business Machines Corporation Severe error detectors, methods and computer program products that use constellation specific error event thresholds to detect severe error events during demodulation of a signal comprising symbols from a plurality of symbol constellations
US6661847B1 (en) 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations
US6754258B1 (en) 1999-10-29 2004-06-22 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of digital impairments based on patterns
US6650657B1 (en) 1999-10-29 2003-11-18 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modem signals
US6662322B1 (en) 1999-10-29 2003-12-09 International Business Machines Corporation Systems, methods, and computer program products for controlling the error rate in a communication device by adjusting the distance between signal constellation points
US6611563B1 (en) 1999-10-29 2003-08-26 International Business Machines Corporation Systems, methods and computer program products for data mode refinement of modem constellation points
US6505222B1 (en) 1999-10-29 2003-01-07 International Business Machines Corporation Systems methods and computer program products for controlling undesirable bias in an equalizer
US6765955B1 (en) 1999-10-29 2004-07-20 International Business Machines Corporation Methods, systems and computer program products establishing a communication configuration for a modem connection to compensate for echo noise
US6792040B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Modems having a dual power mode capability and methods of operating same
US6792004B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Systems, methods and computer program products for averaging learned levels in the presence of robbed-bit signaling based on proximity
US6816545B1 (en) 1999-10-29 2004-11-09 International Business Machines Corporation Systems, methods and computer program products for identifying digital impairments in modems based on clusters and/or skips in pulse code modulation signal levels
US6823004B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Methods, systems and computer program products for monitoring performance of a modem during a connection
US6826157B1 (en) 1999-10-29 2004-11-30 International Business Machines Corporation Systems, methods, and computer program products for controlling data rate reductions in a communication device by using a plurality of filters to detect short-term bursts of errors and long-term sustainable errors

Also Published As

Publication number Publication date
US4122300A (en) 1978-10-24
DK121377A (da) 1977-09-20
IT1077364B (it) 1985-05-04
CA1075361A (fr) 1980-04-08
NL7702867A (nl) 1977-09-21
GB1521671A (en) 1978-08-16
IE44724L (en) 1977-09-19
BE851724A (fr) 1977-08-23
FR2345019A1 (fr) 1977-10-14
LU76873A1 (fr) 1977-09-26
DE2711086A1 (de) 1977-09-22
JPS52114201A (en) 1977-09-24
IE44724B1 (en) 1982-03-10

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Legal Events

Date Code Title Description
CL Concession to grant licences
TP Transmission of property
ST Notification of lapse