MY113937A - Communication system - Google Patents

Communication system

Info

Publication number
MY113937A
MY113937A MYPI94000704A MYPI19940704A MY113937A MY 113937 A MY113937 A MY 113937A MY PI94000704 A MYPI94000704 A MY PI94000704A MY PI19940704 A MYPI19940704 A MY PI19940704A MY 113937 A MY113937 A MY 113937A
Authority
MY
Malaysia
Prior art keywords
signal
section
image
error correction
generate
Prior art date
Application number
MYPI94000704A
Inventor
Oshima Mitsuaki
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of MY113937A publication Critical patent/MY113937A/en

Links

Classifications

    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/183—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2604—Multiresolution systems
    • 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
    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • 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
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64784—Data processing by the network
    • H04N21/64792—Controlling the complexity of the content stream, e.g. by dropping packets
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Transmitters (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

A COMMUNICATION SYSTEM COMPRISING AN INPUT SECTION FOR INPUTTING AN IMAGE SIGNAL; AN IMAGE COMPRESSION SECTION(401) FOR COMPRESSING THE IMAGE SIGNAL TO GENERATE A DIGITAL IMAGE COMPRESSION SIGNAL; AN ERROR CORRECTION ENCODING SECTION(744) FOR ADDING AN ERROR CORRECTION CODE TO THE DIGITAL IMAGE COMPRESSION SIGNAL TO GENERATE AN ERROR CORRECTION CODING SIGNAL; A MODULATING SECTION(852) FOR MODULATING THE ERROR CORRECTION CODING SIGNAL INTO AN N-VALUE VSB MODULATION SIGNAL; A TRANSMITTING SECTION(5) FOR TRANSMISSION N-VALUE VSB MODULATION SIGNAL; A RECEIVING SECTION(24) FOR RECEIVING A TRANSMISSION SIGNAL TRANSMITTED FROM THE TRANSMITTING SECTION; A DEMODULATING SECTION(852) FOR DEMODULATING THE TRANSMISSION SIGNAL INTO A RECEIVING DIGITAL SIGNAL; AN ERROR CORRECTION SECTION(757) FOR ERROR CORRECTING THE RECEIVING DIGITAL SIGNAL TO GENERATE AN ERROR-CORRECTED DIGITAL SIGNAL; AN IMAGE EXPANSION SECTION(402) FOR EXPANDING THE ERROR-CORRECTED DIGITAL SIGNAL TO GENERATE AN IMAGE OUTPUT SIGNAL; AND AN OUTPUT SECTION FOR OUTPUTTING THE IMAGE OUTPUT SIGNAL.FIGURE 1
MYPI94000704A 1993-03-25 1994-03-25 Communication system MY113937A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6646193 1993-03-25
JP13298493 1993-05-10
JP26161293 1993-09-24
JP34997293 1993-12-27

Publications (1)

Publication Number Publication Date
MY113937A true MY113937A (en) 2002-06-29

Family

ID=27464719

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI94000704A MY113937A (en) 1993-03-25 1994-03-25 Communication system

Country Status (6)

Country Link
JP (9) JP3248807B2 (en)
KR (1) KR0161051B1 (en)
AU (1) AU660123B2 (en)
CA (1) CA2119983C (en)
MX (4) MXPA00004076A (en)
MY (1) MY113937A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802241A (en) 1992-03-26 1998-09-01 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38513E1 (en) 1992-03-26 2004-05-11 Matsushita Electric Industrial Co., Ltd. Communication system
KR100386572B1 (en) * 1999-12-24 2003-06-02 엘지전자 주식회사 System for Digital TV translator
US6889351B1 (en) * 2000-03-30 2005-05-03 Koninklijke Philips Electronics, N.V. Backward compatible multiple data stream transmission method and system for compressed domain signals
JP4031707B2 (en) 2000-12-15 2008-01-09 アダプティックス インコーポレイテッド Multi-carrier communication with group-based subcarrier allocation
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
JP4256158B2 (en) 2002-12-26 2009-04-22 パナソニック株式会社 Wireless communication apparatus and wireless communication method
US7573851B2 (en) 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
JP4871760B2 (en) 2007-02-28 2012-02-08 日立建機株式会社 Motor speed control device for hydraulic drive vehicle
KR101355633B1 (en) * 2007-11-06 2014-01-29 삼성전자주식회사 Encoder and encoding method
JP4734314B2 (en) * 2007-12-10 2011-07-27 パナソニック株式会社 Wireless communication apparatus and wireless communication method
JP6089222B2 (en) * 2012-09-19 2017-03-08 パナソニックＩｐマネジメント株式会社 refrigerator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181027A (en) * 1985-09-24 1987-04-08 Stc Plc Digital to vestigial sideband conversion
US5176712A (en) * 1988-04-12 1993-01-05 Tranquil Prospects Ltd. Endoprostheses with resorption preventing means
JP2512130B2 (en) * 1989-01-24 1996-07-03 三菱電機株式会社 Error-correction concatenated coding device and error-correction concatenated code decoding device
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
JP3117706B2 (en) * 1990-11-28 2000-12-18 日本放送協会 Data interleaving method and circuit
DE69232530T2 (en) * 1991-03-27 2002-11-07 Matsushita Electric Ind Co Ltd Signal transmission system
JP3241098B2 (en) * 1992-06-12 2001-12-25 株式会社東芝 Multi-system receiver

Also Published As

Publication number Publication date
JP2002190842A (en) 2002-07-05
MXPA00004076A (en) 2005-09-27
JP2007049723A (en) 2007-02-22
JP3450321B2 (en) 2003-09-22
JP3410085B2 (en) 2003-05-26
JP3327914B2 (en) 2002-09-24
AU5905294A (en) 1994-10-20
KR940023243A (en) 1994-10-22
JP2003158501A (en) 2003-05-30
CA2119983A1 (en) 1994-09-26
JP3327916B2 (en) 2002-09-24
JP3881679B2 (en) 2007-02-14
JP2002190843A (en) 2002-07-05
JP3588463B2 (en) 2004-11-10
MXPA03010764A (en) 2009-01-14
JP2002208906A (en) 2002-07-26
MXPA00007354A (en) 2005-08-26
JP3327915B2 (en) 2002-09-24
MXPA00004081A (en) 2005-09-27
JP2004343789A (en) 2004-12-02
JP2002198928A (en) 2002-07-12
JP2004032747A (en) 2004-01-29
AU660123B2 (en) 1995-06-08
JPH07322219A (en) 1995-12-08
CA2119983C (en) 1999-05-11
JP3248807B2 (en) 2002-01-21
KR0161051B1 (en) 1999-01-15

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