TW254023B - - Google Patents

Info

Publication number
TW254023B
TW254023B TW083107166A TW83107166A TW254023B TW 254023 B TW254023 B TW 254023B TW 083107166 A TW083107166 A TW 083107166A TW 83107166 A TW83107166 A TW 83107166A TW 254023 B TW254023 B TW 254023B
Authority
TW
Taiwan
Application number
TW083107166A
Other languages
Chinese (zh)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22132606&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TW254023(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by At & T Corp filed Critical At & T Corp
Application granted granted Critical
Publication of TW254023B publication Critical patent/TW254023B/zh

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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J7/00—Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3483—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
TW083107166A 1993-06-14 1994-08-04 TW254023B (US20020125480A1-20020912-P00900.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/076,530 US5475713A (en) 1993-06-14 1993-06-14 Shaped signal spaces in a simultaneous voice and data system

Publications (1)

Publication Number Publication Date
TW254023B true TW254023B (US20020125480A1-20020912-P00900.png) 1995-08-11

Family

ID=22132606

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083107166A TW254023B (US20020125480A1-20020912-P00900.png) 1993-06-14 1994-08-04

Country Status (8)

Country Link
US (1) US5475713A (US20020125480A1-20020912-P00900.png)
EP (1) EP0630132A3 (US20020125480A1-20020912-P00900.png)
JP (1) JPH0750701A (US20020125480A1-20020912-P00900.png)
KR (1) KR950002313A (US20020125480A1-20020912-P00900.png)
CN (1) CN1112324A (US20020125480A1-20020912-P00900.png)
CA (1) CA2125510A1 (US20020125480A1-20020912-P00900.png)
IL (1) IL110005A (US20020125480A1-20020912-P00900.png)
TW (1) TW254023B (US20020125480A1-20020912-P00900.png)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5684834A (en) * 1993-06-14 1997-11-04 Paradyne Corporation Simultaneous analog and digital communication using fractional rate encoding
FI941072A (fi) * 1994-03-07 1995-09-08 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä, lähetin sekä vastaanotin
US5878077A (en) * 1995-10-10 1999-03-02 Paradyne Corporation Apparatus for high-speed simultaneous voice/data communications
US5796716A (en) * 1995-11-27 1998-08-18 Paradyne Corporation Method and apparatus for simultaneous voice/data transmission
US6449281B1 (en) 1997-09-30 2002-09-10 Intel Corporation Interface control of communication between a control processor and a digital signal processor
US9432172B2 (en) 1997-12-05 2016-08-30 Rembrandt Wireless Technologies, Lp System and method of communication using at least two modulation methods
US7248626B2 (en) 1997-12-05 2007-07-24 Paradyne Corporation System and method of communication via embedded modulation
US6704324B1 (en) 1998-03-25 2004-03-09 Paradyne Corporation Apparatus and method for transmission of voice band signals over a DSL line
FR2784823B1 (fr) * 1998-10-15 2002-11-29 Cit Alcatel Procede de transmission dans un systeme de radiocommunication du type a acces multiple
KR20010084180A (ko) * 2000-02-24 2001-09-06 송세범 알에프 모뎀의 에프에스케이 신호 및 오디오신호 송수신장치
US7139334B2 (en) * 2001-06-21 2006-11-21 Bartlett Alan M Cooperative code-enhanced multi-user communications system
GB0420183D0 (en) * 2004-09-10 2004-10-13 Ttp Communications Ltd Metric calculation utilising pre-stored values
US8804885B2 (en) * 2005-12-19 2014-08-12 Agere Systems Llc Delay compensation in equalizer-based receiver
JP6218438B2 (ja) * 2013-06-04 2017-10-25 日本無線株式会社 端局装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512013A (en) * 1983-04-11 1985-04-16 At&T Bell Laboratories Simultaneous transmission of speech and data over an analog channel
US4660213A (en) * 1983-11-22 1987-04-21 Infinet, Inc. Signal structure for data communication
US4546212A (en) * 1984-03-08 1985-10-08 Crowder, Inc. Data/voice adapter for telephone network
US4672602A (en) * 1984-11-02 1987-06-09 Itt Corporation Control and routing system
US4757495A (en) * 1986-03-05 1988-07-12 Telebit Corporation Speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels
US4891806A (en) * 1987-09-18 1990-01-02 Racal Data Communications Inc. Constellation multiplexed inband secondary channel for voiceband modem
US4937844A (en) * 1988-11-03 1990-06-26 Racal Data Communications Inc. Modem with data compression selected constellation
US5081647A (en) * 1989-01-06 1992-01-14 American Telephone & Telegraph Company Communication of a voice signal via continuous quadrature amplitude modulator
US5022053A (en) * 1989-04-10 1991-06-04 At&T Bell Laboratories Data communications with alternation of signaling constellations
US4924516A (en) * 1989-05-23 1990-05-08 At&T Paradyne Method and system for a synchronized pseudo-random privacy modem
US5105443A (en) * 1990-05-29 1992-04-14 At&T Bell Laboratories Inband coding of secondary data
US5103227A (en) * 1990-09-26 1992-04-07 At&T Bell Laboratories Modulus converter for fractional rate encoding
US5214656A (en) * 1990-12-13 1993-05-25 At&T Bell Laboratories Multiplexed coded modulation with unequal error protection
DK0577672T3 (da) * 1991-03-28 1999-04-26 British Telecomm TCM skema med fraktions bit-hastigheder, rammesignaler og konstellationsformning
US5185763A (en) * 1991-04-09 1993-02-09 Racal-Datacom, Inc. Data bit to constellation symbol mapper
DE69332849T2 (de) * 1992-01-14 2003-12-18 Fujitsu Ltd Gleichzeitige Übertragung von Daten und analogen Sprachbandsignalen
US5237292A (en) * 1992-07-01 1993-08-17 Space Systems/Loral Quadrature amplitude modulation system with compensation for transmission system characteristics

Also Published As

Publication number Publication date
JPH0750701A (ja) 1995-02-21
US5475713A (en) 1995-12-12
KR950002313A (ko) 1995-01-04
IL110005A0 (en) 1994-10-07
CN1112324A (zh) 1995-11-22
EP0630132A3 (en) 1997-05-07
EP0630132A2 (en) 1994-12-21
IL110005A (en) 1997-09-30
CA2125510A1 (en) 1994-12-15

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