FI942110A0 - Sändningssystem, sändare, och mottagare för en multiplexerad kvadraturamplitudmodulerad (QAM) televisionssändning - Google Patents

Sändningssystem, sändare, och mottagare för en multiplexerad kvadraturamplitudmodulerad (QAM) televisionssändning

Info

Publication number
FI942110A0
FI942110A0 FI942110A FI942110A FI942110A0 FI 942110 A0 FI942110 A0 FI 942110A0 FI 942110 A FI942110 A FI 942110A FI 942110 A FI942110 A FI 942110A FI 942110 A0 FI942110 A0 FI 942110A0
Authority
FI
Finland
Prior art keywords
transmission
qam
transmitters
receivers
quadrature amplitude
Prior art date
Application number
FI942110A
Other languages
English (en)
Finnish (fi)
Other versions
FI942110A (sv
Inventor
David Alan Bryan
Samir Hulyalkar
Carlo Basile
Zhi-Yuan Guan
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of FI942110A0 publication Critical patent/FI942110A0/sv
Publication of FI942110A publication Critical patent/FI942110A/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L25/497—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 by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/0803—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division using frequency interleaving, e.g. with precision offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0098—Unequal error protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/043—Pseudo-noise [PN] codes variable during transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/046—Speed or phase control by synchronisation signals using special codes as synchronising signal using a dotting sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Television Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Details Of Television Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
FI942110A 1993-05-07 1994-05-06 Sändningssystem, sändare, och mottagare för en multiplexerad kvadraturamplitudmodulerad (QAM) televisionssändning FI942110A (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6018193A 1993-05-07 1993-05-07

Publications (2)

Publication Number Publication Date
FI942110A0 true FI942110A0 (sv) 1994-05-06
FI942110A FI942110A (sv) 1994-11-08

Family

ID=22027882

Family Applications (1)

Application Number Title Priority Date Filing Date
FI942110A FI942110A (sv) 1993-05-07 1994-05-06 Sändningssystem, sändare, och mottagare för en multiplexerad kvadraturamplitudmodulerad (QAM) televisionssändning

Country Status (6)

Country Link
US (1) US5561468A (sv)
EP (1) EP0624033A3 (sv)
JP (1) JPH0775099A (sv)
KR (1) KR940027562A (sv)
FI (1) FI942110A (sv)
TW (1) TW343414B (sv)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40241E1 (en) 1991-03-27 2008-04-15 Matsushita Electric Industrial Co., Ltd. Communication system
USRE39890E1 (en) * 1991-03-27 2007-10-23 Matsushita Electric Industrial Co., Ltd. Communication system
US5600672A (en) 1991-03-27 1997-02-04 Matsushita Electric Industrial Co., Ltd. Communication system
USRE42643E1 (en) 1991-03-27 2011-08-23 Panasonic Corporation Communication system
JPH06508805A (ja) * 1991-08-05 1994-10-06 ザ、ブロクター、エンド、ギャンブル、カンパニー 差込み式ハンドル
US7894541B2 (en) * 1992-03-26 2011-02-22 Panasonic Corporation Communication system
US6724976B2 (en) * 1992-03-26 2004-04-20 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38513E1 (en) 1992-03-26 2004-05-11 Matsushita Electric Industrial Co., Ltd. Communication system
US7158577B1 (en) 1992-03-26 2007-01-02 Matsushita Electric Industrial Co., Ltd. Communication system
US5802241A (en) 1992-03-26 1998-09-01 Matsushita Electric Industrial Co., Ltd. Communication system
CA2332405C (en) * 1992-03-26 2007-01-23 Matsushita Electric Industrial Co., Ltd. Communication system
US6728467B2 (en) * 1992-03-26 2004-04-27 Matsushita Electric Industrial Co., Ltd. Communication system
TW249873B (en) * 1994-03-21 1995-06-21 At & T Corp Time division multiplexing data communication arrangement with different signal constellation
KR0145439B1 (ko) * 1994-06-14 1998-07-15 김광호 고선명 텔레비젼용 적응등화기의 동작제어 방법 및 장치
US5692020A (en) * 1995-06-07 1997-11-25 Discovision Associates Signal processing apparatus and method
US5671253A (en) * 1995-07-12 1997-09-23 Thomson Consumer Electronics, Inc. Apparatus for demodulating and decoding video signals encoded in different formats
DE19538302C2 (de) * 1995-10-16 2001-03-22 Bosch Gmbh Robert Verfahren zur terrestrischen Übertragung digitaler Signale
US6055268A (en) * 1996-05-09 2000-04-25 Texas Instruments Incorporated Multimode digital modem
US5878086A (en) * 1996-09-19 1999-03-02 Philips Electronics North America Corporation Method and apparatus for producing a deterministic sequence from an IIR filter
US6192070B1 (en) * 1998-01-02 2001-02-20 Mitsubishi Electric Research Laboratories, Inc. Universal modem for digital video, audio and data communications
JP3438564B2 (ja) * 1998-01-26 2003-08-18 ソニー株式会社 ディジタル信号多重化装置及び方法、記録媒体
US6441843B1 (en) * 1998-08-24 2002-08-27 Samsung Electronics Co., Ltd. Suppression of effects of co-channel NTSC interference artifacts upon digital TV receiver adaptive equalizer
FI105963B (sv) * 1998-08-24 2000-10-31 Nokia Oyj Förfarande för att bilda en träningsperiod
US6384858B1 (en) * 1998-08-24 2002-05-07 Samsung Electronics Co., Ltd. Suppression of co-channel NTSC interference artifacts when extracting training signal for a DTV receiver equalizer
US6301298B1 (en) * 1998-11-03 2001-10-09 Tektronix, Inc. Adaptive equalizer with complex signal regeneration and method of operation
FI108494B (sv) * 1998-12-22 2002-01-31 Nokia Corp Signaleringsf÷rfarande och telekommunikationssystem
JP3930180B2 (ja) * 1999-01-21 2007-06-13 富士通株式会社 デジタル信号復調回路及び方法
AU3892200A (en) * 1999-03-19 2000-10-09 Broadcom Corporation Home phone line network architecture
US6868072B1 (en) 1999-03-19 2005-03-15 Broadcom Corporation Home phone line network architecture
US7549056B2 (en) 1999-03-19 2009-06-16 Broadcom Corporation System and method for processing and protecting content
US6259744B1 (en) * 1999-06-01 2001-07-10 Motorola, Inc. Method and apparatus for mapping bits to an information burst
GB9921811D0 (en) * 1999-09-16 1999-11-17 Mitel Semiconductor Ltd Digital tuner
US7079586B1 (en) * 2000-03-16 2006-07-18 Koninklijke Philips Electronics N.V. Systems and methods for optimal distribution of symbols in a fixed size data packet to improve receiver performance
US6442217B1 (en) * 2000-05-22 2002-08-27 Sicom, Inc. Digital communication receiver with digital, IF, I-Q balancer
IT1318053B1 (it) * 2000-06-27 2003-07-21 Siemens Inf & Comm Networks Metodo di trasmissione in sistemi a modulazione adattativa
JP4560951B2 (ja) * 2000-07-11 2010-10-13 ヤマハ株式会社 音楽情報デジタル信号の再生装置および再生方法
US20020075904A1 (en) * 2000-10-25 2002-06-20 Dabak Anand G. Short training sequences for reacquisition of segmented data
JP3644504B2 (ja) * 2001-03-14 2005-04-27 松下電器産業株式会社 ディジタル信号送信装置
US7403578B2 (en) * 2001-06-08 2008-07-22 Broadcom Corporation Robust burst detection and acquisition system and method
US7269224B2 (en) * 2001-09-17 2007-09-11 Bae Systems Information And Electronic Systems Integration Inc. Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
US7450637B2 (en) 2001-12-06 2008-11-11 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7391815B2 (en) 2001-12-06 2008-06-24 Pulse-Link, Inc. Systems and methods to recover bandwidth in a communication system
US7406647B2 (en) 2001-12-06 2008-07-29 Pulse-Link, Inc. Systems and methods for forward error correction in a wireless communication network
US7403576B2 (en) 2001-12-06 2008-07-22 Pulse-Link, Inc. Systems and methods for receiving data in a wireless communication network
US7317756B2 (en) 2001-12-06 2008-01-08 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7257156B2 (en) * 2001-12-06 2007-08-14 Pulse˜Link, Inc. Systems and methods for equalization of received signals in a wireless communication network
US7483483B2 (en) 2001-12-06 2009-01-27 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
JP3899005B2 (ja) 2002-10-03 2007-03-28 株式会社エヌ・ティ・ティ・ドコモ 変調装置、変調方法、復調装置及び復調方法
US6919829B2 (en) † 2003-06-20 2005-07-19 Nokia Corporation Bit swapping for different interleaving depths
CN1333593C (zh) * 2004-01-12 2007-08-22 上海交通大学 数字电视地面广播中的一种信号电平映射方法
WO2008013528A1 (en) * 2006-07-25 2008-01-31 Thomson Licensing Recovery from burst packet loss in internet protocol based wireless networks using staggercasting and cross-packet forward error correction
GB2450363B (en) * 2007-06-21 2009-07-08 Motorola Inc Communication units, communication system and methods for modulation and demodulation
TW201034418A (en) 2008-08-18 2010-09-16 Agency Science Tech & Res Cyclic prefix schemes
KR101830375B1 (ko) * 2011-06-07 2018-02-21 한국전자통신연구원 지상파 신호와 모바일 신호 융합형 수신장치 및 방법
CN103190107B (zh) * 2011-10-31 2015-09-23 华为技术有限公司 数据发送器、数据接收器和帧同步方法
US10134412B2 (en) * 2015-09-03 2018-11-20 Shure Acquisition Holdings, Inc. Multiresolution coding and modulation system
US11539908B2 (en) * 2017-09-29 2022-12-27 Advanced Micro Devices, Inc. Adjustable modulation coding scheme to increase video stream robustness
US11997420B2 (en) * 2020-02-20 2024-05-28 Shenzhen Hollyland Technology Co., Ltd. Audio and video transmission devices and audio and video transmission systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213224B1 (en) * 1985-08-28 1990-04-11 International Business Machines Corporation Method for rapid gain acquisition in a modem receiver
US4891806A (en) * 1987-09-18 1990-01-02 Racal Data Communications Inc. Constellation multiplexed inband secondary channel for voiceband modem
US5164963A (en) * 1990-11-07 1992-11-17 At&T Bell Laboratories Coding for digital transmission
US5214656A (en) * 1990-12-13 1993-05-25 At&T Bell Laboratories Multiplexed coded modulation with unequal error protection
US5287180A (en) * 1991-02-04 1994-02-15 General Electric Company Modulator/demodulater for compatible high definition television system
SG47627A1 (en) * 1991-06-03 1998-04-17 British Telecomm Radio system
US5235424A (en) * 1992-02-06 1993-08-10 General Electric Company Automatic gain control system for a high definition television signal receiver
US5267021A (en) * 1992-04-03 1993-11-30 The Trustees Of Columbia University In The City Of New York Multiresolution digital television broadcast system
SG95572A1 (en) * 1992-09-10 2003-04-23 Thomson Consumer Electronics Multiple qam digital television signal encoder

Also Published As

Publication number Publication date
EP0624033A2 (en) 1994-11-09
JPH0775099A (ja) 1995-03-17
TW343414B (en) 1998-10-21
EP0624033A3 (en) 1995-03-22
US5561468A (en) 1996-10-01
KR940027562A (ko) 1994-12-10
FI942110A (sv) 1994-11-08

Similar Documents

Publication Publication Date Title
FI942110A0 (sv) Sändningssystem, sändare, och mottagare för en multiplexerad kvadraturamplitudmodulerad (QAM) televisionssändning
CA2154180A1 (en) Multiple-Modulation Communication System
GB2277010B (en) A method of generation and demodulation of modulated signals and radio transmitters and receivers using the method
NO931053D0 (no) Kommunikasjonssystem med modusselektiv kvadratur-amplitude-modulasjon (qam)
AU7975098A (en) Apparatus and method for processing a quadrature amplitude modulated (qam) signal
AU649449B2 (en) Electronic arrangement for receiving a modulated signal carrier.
AU641874B2 (en) Predistortion arrangement for a digital transmission system
CA2166599A1 (en) Method of Transmitting Orthogonal Frequency Division Multiplexing Signal and Receiver Thereof
FI950463A0 (sv) Förfarande för datakommunikation, sändare och mottagare
CA2296855A1 (en) Receiving and demodulating a digital television signal
CA2223982A1 (en) Multiple user communication system, device and method with overlapping uplink carrier spectra
FI954028A0 (sv) System för överföring av information i en tidsmässigt varierande överföringskanal och motsvarande sändar- och mottagaranordningar
FI955113A (sv) Förfarande för datakommunikation, sändare och mottagare
EP0467266A3 (en) Direct modulation phase shift keying (dm-psk) transmission system
FI941072A (sv) Förfarande för datakommunikation, sändare samt mottagare
AU8827091A (en) Receiver for a digital transmission system
EP0624979A3 (en) Transmission station to transmit various television programs and receivers to receive the programs.
EP1111869A3 (en) Linear transmitter for use in combination with radio communication systems
AU2945092A (en) Digital data transmission process in the null symbol of a cofdm modulation process
FI955976A0 (sv) Optisk omkopplare samt sändare och mottagare för multiplex transmissionssystem innehållande en sådan omkopplare
DE69703474D1 (de) Vorrichtung zum Übertragen von digitalen Informationen über Satellit
FR2689712B1 (fr) Dispositif de démodulation de signaux numériques modulés selon une technique à constellations de modulation alternées.
FI971347A (sv) Förfarande för att demodulera en styrsignal, demoduleringsanordning och mottagare för en styrsignal
DK0640265T3 (da) Transmissionsanordning til transmission af et nyttesignal, som er moduleret på en bærebølgesvingning
WO1999025135A3 (de) Verfahren und vorrichtung zur übertragung von daten mit mobilen datenübertragungseinrichtungen

Legal Events

Date Code Title Description
HC Name/ company changed in application

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.