[go: up one dir, main page]

AU1925301A - Gray encoding for hierarchical qam transmission systems - Google Patents

Gray encoding for hierarchical qam transmission systems

Info

Publication number
AU1925301A
AU1925301A AU19253/01A AU1925301A AU1925301A AU 1925301 A AU1925301 A AU 1925301A AU 19253/01 A AU19253/01 A AU 19253/01A AU 1925301 A AU1925301 A AU 1925301A AU 1925301 A AU1925301 A AU 1925301A
Authority
AU
Australia
Prior art keywords
transmission systems
gray encoding
qam transmission
hierarchical qam
hierarchical
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.)
Abandoned
Application number
AU19253/01A
Inventor
Thomas Peter Krauss
Kumar Ramaswamy
Timothy Forrest Settle
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of AU1925301A publication Critical patent/AU1925301A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/3488—Multiresolution systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AU19253/01A 1999-11-23 2000-11-22 Gray encoding for hierarchical qam transmission systems Abandoned AU1925301A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16702499P 1999-11-23 1999-11-23
US60167024 1999-11-23
PCT/US2000/032011 WO2001039456A1 (en) 1999-11-23 2000-11-22 Gray encoding for hierarchical qam transmission systems

Publications (1)

Publication Number Publication Date
AU1925301A true AU1925301A (en) 2001-06-04

Family

ID=22605640

Family Applications (1)

Application Number Title Priority Date Filing Date
AU19253/01A Abandoned AU1925301A (en) 1999-11-23 2000-11-22 Gray encoding for hierarchical qam transmission systems

Country Status (2)

Country Link
AU (1) AU1925301A (en)
WO (1) WO2001039456A1 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7423987B2 (en) 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7173981B1 (en) 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7639759B2 (en) 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7245671B1 (en) 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
US7209524B2 (en) 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7184489B2 (en) 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7483505B2 (en) 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US7583728B2 (en) 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7502430B2 (en) 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7002899B2 (en) 2001-10-09 2006-02-21 Ati Technologies Inc. Method and apparatus to improve SCDMA headroom
CN1493137A (en) * 2001-11-14 2004-04-28 连宇通信有限公司 Quadrature amplitude modulation method for digital mobile communication system
US7095709B2 (en) 2002-06-24 2006-08-22 Qualcomm, Incorporated Diversity transmission modes for MIMO OFDM communication systems
CA2489569C (en) * 2002-07-01 2012-05-22 The Directv Group, Inc. Improving hierarchical 8psk performance
US7463676B2 (en) 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
AU2003301717A1 (en) 2002-10-25 2004-05-25 The Directv Group, Inc. Lower complexity layered modulation signal processor
US7529312B2 (en) 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
US7474710B2 (en) 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
ES2339007T3 (en) * 2002-10-25 2010-05-14 The Directv Group, Inc. CONFIGURATIONS OF CONNECTION LINKS TO SUPPORT A LAYER MODULATION FOR DIGITAL SIGNS.
FR2855001A1 (en) 2003-05-14 2004-11-19 St Microelectronics Sa METHOD FOR RECEIVING TWO CORREL SIGNALS TRANSMITTED ON A SINGLE CHANNEL AND RECEIVER FOR CARRYING OUT SAID METHOD
CN1792057A (en) * 2003-05-16 2006-06-21 汤姆森许可贸易公司 A unified receiver for layered and hierarchical modulation systems
CN100539562C (en) * 2003-05-16 2009-09-09 汤姆森许可公司 Repeated encoding in the satellite based communication systems
US7724838B2 (en) * 2003-09-25 2010-05-25 Qualcomm Incorporated Hierarchical coding with multiple antennas in a wireless communication system
US7502429B2 (en) 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
US7215713B2 (en) * 2003-11-26 2007-05-08 Delphi Technologies, Inc. Method to minimize compatibility error in hierarchical modulation
US20050113040A1 (en) * 2003-11-26 2005-05-26 Walker Glenn A. Method to minimize compatibility error in hierarchical modulation using variable phase
US7280613B2 (en) * 2003-11-26 2007-10-09 Delphi Technologies, Inc. Method to inject hierarchical data onto single carrier stream
US7499696B2 (en) 2003-11-26 2009-03-03 Delphi Technologies, Inc. Method to optimize hierarchical modulation for a diversity system
US8144800B2 (en) * 2004-09-18 2012-03-27 Broadcom Corporatino Downstream transmitter and cable modem receiver for 1024 QAM
JP4542156B2 (en) * 2004-10-15 2010-09-08 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Wireless communication method and system with various resolution levels of signal modulation depending on propagation conditions
US8379769B2 (en) 2010-03-10 2013-02-19 Delphi Technologies, Inc. Communication system utilizing a hierarchically modulated signal and method thereof
JP5916507B2 (en) * 2012-05-11 2016-05-11 シャープ株式会社 TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, PROGRAM, AND INTEGRATED CIRCUIT
WO2015099556A1 (en) * 2013-12-23 2015-07-02 Общество С Ограниченной Ответственностью "Космонет" Method of transmitting and receiving qam (quadrature amplitude modulation) signals
CN105634659B (en) * 2014-10-30 2019-04-05 中兴通讯股份有限公司 Data sending, receiving method, device, transmitter and the receiver of double transmission blocks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19713631A1 (en) * 1997-04-02 1998-10-08 Bosch Gmbh Robert Process for increasing the transmitted data rate and sender and receiver
US5966412A (en) * 1997-06-30 1999-10-12 Thomson Consumer Electronics, Inc. Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal

Also Published As

Publication number Publication date
WO2001039456A1 (en) 2001-05-31

Similar Documents

Publication Publication Date Title
AU1925301A (en) Gray encoding for hierarchical qam transmission systems
AU3069297A (en) Transmitter for qam encoded data
AU2045701A (en) A hierarchical qam transmission system with varying grouping factor
AU3608199A (en) Qam modulator
AU1399101A (en) Data transmission
AU6310098A (en) Data transmitter
AUPR203500A0 (en) Transmission system
AU1519801A (en) Multimedia service system
AU4082501A (en) Data transmission management system
AUPQ353499A0 (en) Improved transmission system
AU3240100A (en) High order spatial mode transmission system
AU1907501A (en) Multi-carrier transmission system
AU4743500A (en) Transmission system
GB2355503B (en) Transmission systems
EP1573946A3 (en) Digital transmission and control system for vehicles
AU2584200A (en) Transmission for cars
AU2001232155A1 (en) Data transmission system
AU5534599A (en) Snek transmission
AU7606900A (en) Key escrow systems
AU2001273721A1 (en) System for the transmission of data
AU3268300A (en) Document transmission system
AU5290299A (en) A video coding system
AU3610301A (en) Information reception/transmission system
GB0125219D0 (en) Hybrid analogue/digital media transmission or communication system
GB0022355D0 (en) Transmission systems

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase