HK103996A - Codecs with suppression of multiple encoding/decodings across a connection - Google Patents

Codecs with suppression of multiple encoding/decodings across a connection

Info

Publication number
HK103996A
HK103996A HK103996A HK103996A HK103996A HK 103996 A HK103996 A HK 103996A HK 103996 A HK103996 A HK 103996A HK 103996 A HK103996 A HK 103996A HK 103996 A HK103996 A HK 103996A
Authority
HK
Hong Kong
Prior art keywords
decodings
codecs
suppression
connection
multiple encoding
Prior art date
Application number
HK103996A
Other languages
English (en)
Inventor
Steven Leslie Gay
Richard Dennis Gitlin
John Hartung
Original Assignee
At & T Corp
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 At & T Corp filed Critical At & T Corp
Publication of HK103996A publication Critical patent/HK103996A/xx

Links

Classifications

    • 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
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/181—Transcoding devices; Rate adaptation devices
    • 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
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • 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

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)
  • Interface Circuits In Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
HK103996A 1988-03-11 1996-06-13 Codecs with suppression of multiple encoding/decodings across a connection HK103996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/166,867 US4924480A (en) 1988-03-11 1988-03-11 Codecs with suppression of multiple encoding/decodings across a connection

Publications (1)

Publication Number Publication Date
HK103996A true HK103996A (en) 1996-06-21

Family

ID=22605001

Family Applications (1)

Application Number Title Priority Date Filing Date
HK103996A HK103996A (en) 1988-03-11 1996-06-13 Codecs with suppression of multiple encoding/decodings across a connection

Country Status (8)

Country Link
US (1) US4924480A (ko)
EP (1) EP0332345B1 (ko)
JP (1) JPH0738617B2 (ko)
KR (1) KR970008904B1 (ko)
CA (1) CA1339517C (ko)
DE (1) DE68923109T2 (ko)
ES (1) ES2073432T3 (ko)
HK (1) HK103996A (ko)

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FI101439B (fi) * 1995-04-13 1998-06-15 Nokia Telecommunications Oy Transkooderi, jossa on tandem-koodauksen esto
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DE19516078B4 (de) * 1995-05-05 2006-06-08 Robert Bosch Gmbh Verfahren zur Übertragung von Daten, insbesondere GSM-Daten
US5758256A (en) * 1995-06-07 1998-05-26 Hughes Electronics Corporation Method of transporting speech information in a wireless cellular system
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US5867784A (en) * 1995-07-05 1999-02-02 Telefonaktiebolaget Lm Ericsson Call forwarding in a mobile communication system
DE19544367A1 (de) 1995-11-29 1997-06-05 Bosch Gmbh Robert Verfahren zum Übertragen von Daten, insbesondere von GSM-Daten
FI102445B1 (fi) * 1996-02-08 1998-11-30 Nokia Telecommunications Oy Transmissiolaitteisto keskusten väliselle yhteydelle
EP0831671B1 (de) * 1996-08-29 2004-04-21 Siemens Aktiengesellschaft Verfahren und Kommunikationssystem zum Übermitteln von komprimierten Sprachinformationen in einem Kommunikationsnetz
EP0847210B1 (de) * 1996-12-04 2006-01-04 Robert Bosch Gmbh Verfahren zum Übertragen von Daten, insbesondere von GSM-Daten
FI106082B (fi) * 1996-12-05 2000-11-15 Nokia Networks Oy Menetelmä puhekanavan takaisinkytkemisen havaitsemiseksi sekä puheenkäsittelylaite
GB2320166A (en) * 1996-12-09 1998-06-10 Motorola Ltd method of reverting to tandem operation between transcoders of a communication system
US6069888A (en) * 1997-02-26 2000-05-30 Qualcomm Inc. Integrated voice mail system for CDMA network
US6021136A (en) * 1997-07-30 2000-02-01 At&T Corp. Telecommunication network that reduces tandeming of compressed voice packets
AU9404098A (en) * 1997-09-23 1999-04-12 Voxware, Inc. Scalable and embedded codec for speech and audio signals
US6108560A (en) * 1997-09-26 2000-08-22 Nortel Networks Corporation Wireless communications system
JPH11136710A (ja) * 1997-10-28 1999-05-21 Fujitsu Ltd セル伝送ネットワークにおける通信データのディジタル１リンク中継システム
US6327053B1 (en) 1997-12-12 2001-12-04 Nortel Networks Limited Facsimile signal transmission with suppression of multiple modulation and demodulation across a connection
DE19756191A1 (de) * 1997-12-17 1999-06-24 Ericsson Telefon Ab L M Verfahren, Vermittlungseinrichtung und Telekommunikationssystem zum Ausführen von Datenkommunikationen zwischen Teilnehmerstationen
US5968149A (en) * 1998-01-07 1999-10-19 International Business Machines Corporation Tandem operation of input/output data compression modules
RU2144264C1 (ru) 1998-11-05 2000-01-10 ЯН Давид Евгеньевич Способ беспроводной передачи и приема кодовой информации на расстоянии (варианты) и портативное устройство для беспроводной передачи кодовой информации на расстоянии
AU2831099A (en) 1999-02-04 2000-08-25 Nokia Networks Oy Tone detection elimination
FI108767B (fi) * 1999-02-24 2002-03-15 Ericsson Telefon Ab L M Puhelunmuodostus tietoliikennejärjestelmässä
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JP3783829B2 (ja) * 2000-02-08 2006-06-07 三菱電機株式会社 ディジタル回線多重化装置
DE10013798C1 (de) * 2000-03-20 2001-09-20 Siemens Ag Verfahren zur Überwachung der Übertragungsqualität in einem zellularen Funk-Kommunikationssystem
US6754187B1 (en) * 2000-04-06 2004-06-22 Inter-Tel, Inc. Performance enhancement system for digital PBX
JP3761795B2 (ja) * 2000-04-10 2006-03-29 三菱電機株式会社 ディジタル回線多重化装置
US7170988B2 (en) * 2003-10-27 2007-01-30 Motorola, Inc. Method and apparatus for network communication
JP4343224B2 (ja) 2004-05-21 2009-10-14 三菱電機株式会社 移動体パケット通信システ厶
US9426476B2 (en) 2012-07-09 2016-08-23 Hewlett-Packard Development Company, L.P. Video stream

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FR2115686A5 (ko) * 1970-11-30 1972-07-07 Labo Cent Telecommunicat
US3761610A (en) * 1971-02-16 1973-09-25 Graphics Sciences Inc High speed fascimile systems
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US4751736A (en) * 1985-01-31 1988-06-14 Communications Satellite Corporation Variable bit rate speech codec with backward-type prediction and quantization
US4748638A (en) * 1985-10-30 1988-05-31 Microcom, Inc. Data telecommunications system and method for transmitting compressed data
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JPH07120989B2 (ja) * 1986-02-12 1995-12-20 株式会社日立製作所 圧縮多重化装置

Also Published As

Publication number Publication date
US4924480A (en) 1990-05-08
KR890015555A (ko) 1989-10-30
EP0332345A3 (en) 1991-09-11
JPH01272330A (ja) 1989-10-31
JPH0738617B2 (ja) 1995-04-26
CA1339517C (en) 1997-10-28
ES2073432T3 (es) 1995-08-16
KR970008904B1 (en) 1997-05-30
DE68923109D1 (de) 1995-07-27
DE68923109T2 (de) 1996-05-15
EP0332345B1 (en) 1995-06-21
EP0332345A2 (en) 1989-09-13

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)