DE69733692D1 - Verfahren und system zur kompensation gestohlener bits zugeordnet zu einem empfänger oder codec - Google Patents

Verfahren und system zur kompensation gestohlener bits zugeordnet zu einem empfänger oder codec

Info

Publication number
DE69733692D1
DE69733692D1 DE69733692T DE69733692T DE69733692D1 DE 69733692 D1 DE69733692 D1 DE 69733692D1 DE 69733692 T DE69733692 T DE 69733692T DE 69733692 T DE69733692 T DE 69733692T DE 69733692 D1 DE69733692 D1 DE 69733692D1
Authority
DE
Germany
Prior art keywords
codec
compensating
stainless
receiver
bits assigned
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
DE69733692T
Other languages
English (en)
Other versions
DE69733692T2 (de
Inventor
Lewis Betts
Alan Souders
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.)
Telogy Networks Inc
Original Assignee
Telogy Networks 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
Application filed by Telogy Networks Inc filed Critical Telogy Networks Inc
Publication of DE69733692D1 publication Critical patent/DE69733692D1/de
Application granted granted Critical
Publication of DE69733692T2 publication Critical patent/DE69733692T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0421—Circuit arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • H04J3/125—One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
DE69733692T 1996-08-23 1997-05-05 Verfahren und system zur kompensation gestohlener bits zugeordnet zu einem empfänger oder codec Expired - Lifetime DE69733692T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US697373 1996-08-23
US08/697,373 US5761247A (en) 1996-08-23 1996-08-23 Rob bit compensation system and method associated with a receiver or codec
PCT/US1997/007564 WO1998008327A1 (en) 1996-08-23 1997-05-05 Rob bit compensation system and method associated with a receiver or codec

Publications (2)

Publication Number Publication Date
DE69733692D1 true DE69733692D1 (de) 2005-08-11
DE69733692T2 DE69733692T2 (de) 2006-05-04

Family

ID=24800889

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69733692T Expired - Lifetime DE69733692T2 (de) 1996-08-23 1997-05-05 Verfahren und system zur kompensation gestohlener bits zugeordnet zu einem empfänger oder codec

Country Status (5)

Country Link
US (2) US5761247A (de)
EP (1) EP0929958B1 (de)
DE (1) DE69733692T2 (de)
TW (1) TW324803B (de)
WO (1) WO1998008327A1 (de)

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US6233275B1 (en) 1994-12-09 2001-05-15 Brent Townshend High speed communications system for analog subscriber connections
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AU749051B2 (en) * 1997-02-20 2002-06-20 Brent Townshend A method of detecting the presence of robbed-bit signalling
US6002713A (en) * 1997-10-22 1999-12-14 Pc Tel, Inc. PCM modem equalizer with adaptive compensation for robbed bit signalling
US6104730A (en) * 1997-11-25 2000-08-15 International Business Machines Corporation System, method and article of manufacture for high bit rate access over robbed bit trunks
US6178185B1 (en) 1997-11-25 2001-01-23 International Business Machines Corporation Network interface device, method and article of manufacture for providing high bit rate access over robbed bit
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US6266382B1 (en) * 1998-05-23 2001-07-24 Agere Systems Guardian Corp. Technique for detecting and treating robbed bit signaling in data communications
US6317419B1 (en) 1998-06-10 2001-11-13 Conexant Systems, Inc. Method and apparatus for training an echo canceler in a PCM modem context
US6721279B1 (en) 1999-02-02 2004-04-13 Pctel, Inc. Method and apparatus for adaptive PCM level estimation and constellation training
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
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
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
US6487243B1 (en) 1999-03-08 2002-11-26 International Business Machines Corporation Modems, methods, and computer program products for recovering from errors in a tone reversal sequence between two modems
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
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
DE19922172B4 (de) * 1999-05-12 2005-06-02 Infineon Technologies Ag Verfahren und Vorrichtung zum Erkennen und Korrigieren von digitalen PCM-Codewörtern innerhalb eines übertragenen Datenstroms
US6661847B1 (en) 1999-05-20 2003-12-09 International Business Machines Corporation Systems methods and computer program products for generating and optimizing signal constellations
US6542551B1 (en) * 1999-05-20 2003-04-01 Pc Tel, Inc. Translation table and constellation design for a PCM modem subjected to alternating robbed bit signaling
US7203248B1 (en) 1999-07-31 2007-04-10 Broadcom Corporation Impairment sensitive selection of constellation points for communication across a channel
US7190727B1 (en) * 1999-07-31 2007-03-13 Broadcom Corporation Categorization of impairments affecting a communication channel
WO2001013596A1 (en) 1999-07-31 2001-02-22 Altocom, Inc. Digital impairment compensation for v.90 modem
US6721287B1 (en) * 1999-09-09 2004-04-13 Agere Systems Inc. Far echo canceller for PCM modems
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
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
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
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
US6792040B1 (en) 1999-10-29 2004-09-14 International Business Machines Corporation Modems having a dual power mode capability and methods of operating same
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
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
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
US6823017B1 (en) 1999-10-29 2004-11-23 International Business Machines Corporation Systems, methods and computer program products for filtering glitches from measured values in a sequence of code 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
US6987782B2 (en) * 2001-04-06 2006-01-17 Agere Systems, Inc. Method and apparatus for detecting robbed bit location in PCM modems and the like
US7180916B2 (en) * 2001-04-27 2007-02-20 Agere Systems Inc. Compensating for random robbed bit signaling
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US20040157548A1 (en) * 2003-02-06 2004-08-12 Eyer Mark Kenneth Home network interface legacy device adapter

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Also Published As

Publication number Publication date
EP0929958A4 (de) 2003-06-04
US5761247A (en) 1998-06-02
WO1998008327A1 (en) 1998-02-26
EP0929958B1 (de) 2005-07-06
DE69733692T2 (de) 2006-05-04
EP0929958A1 (de) 1999-07-21
TW324803B (en) 1998-01-11
US5995558A (en) 1999-11-30

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