HK1109004A1 - Digital transmission device - Google Patents

Digital transmission device

Info

Publication number
HK1109004A1
HK1109004A1 HK08103033.5A HK08103033A HK1109004A1 HK 1109004 A1 HK1109004 A1 HK 1109004A1 HK 08103033 A HK08103033 A HK 08103033A HK 1109004 A1 HK1109004 A1 HK 1109004A1
Authority
HK
Hong Kong
Prior art keywords
transmission device
digital transmission
digital
transmission
Prior art date
Application number
HK08103033.5A
Other languages
English (en)
Inventor
Atsushi Miyashita
Hiroyuki Takesue
Original Assignee
Hitachi Int Electric Inc
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 Hitachi Int Electric Inc filed Critical Hitachi Int Electric Inc
Publication of HK1109004A1 publication Critical patent/HK1109004A1/xx

Links

Classifications

    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • 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
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols
    • 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
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • 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
    • H04N7/081—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 the additional information signals being transmitted by means of a subcarrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Radio Relay Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
HK08103033.5A 2006-03-20 2008-03-17 Digital transmission device HK1109004A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006075790A JP4724267B2 (ja) 2006-03-20 2006-03-20 デジタル伝送装置

Publications (1)

Publication Number Publication Date
HK1109004A1 true HK1109004A1 (en) 2008-05-23

Family

ID=38595641

Family Applications (1)

Application Number Title Priority Date Filing Date
HK08103033.5A HK1109004A1 (en) 2006-03-20 2008-03-17 Digital transmission device

Country Status (4)

Country Link
JP (1) JP4724267B2 (xx)
KR (1) KR101267097B1 (xx)
CN (1) CN101043623B (xx)
HK (1) HK1109004A1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008252755A (ja) * 2007-03-30 2008-10-16 Hitachi Kokusai Electric Inc デジタル伝送システム
JP5153372B2 (ja) * 2008-02-05 2013-02-27 株式会社日立国際電気 中継伝送装置
CN101702775B (zh) * 2009-08-28 2011-07-06 厦门科安技术开发有限公司 数字微波图像传输系统及传输方法
JP5849997B2 (ja) 2013-06-24 2016-02-03 株式会社デンソー データ通信システム、スレーブ及びマスタ

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06326735A (ja) * 1993-05-12 1994-11-25 N T T Data Tsushin Kk アイパターン信号監視機能付モデム装置及びそれを利用した伝送システム
JP3429652B2 (ja) * 1997-12-01 2003-07-22 沖電気工業株式会社 ディジタル符号化多重化装置
US6788710B1 (en) * 1998-03-19 2004-09-07 Thomson Licensing S.A. Auxiliary data insertion in a transport datastream
JP2001111969A (ja) * 1999-10-06 2001-04-20 Nec Corp Ｔｓパケットデータ多重方法及びｔｓパケットデータ多重装置
JP3768085B2 (ja) * 2000-09-13 2006-04-19 株式会社日立国際電気 ディジタル伝送システム
JP4159814B2 (ja) * 2002-06-26 2008-10-01 株式会社エヌ・ティ・ティ・データ 双方向型ネットワーク侵入検知システムおよび双方向型侵入検知プログラム
US7983326B2 (en) * 2003-07-16 2011-07-19 Hitachi Kokusai Electric, Inc. Digital transmission system and its transmission status recognition method
JP4414825B2 (ja) * 2003-07-16 2010-02-10 株式会社日立国際電気 デジタル伝送装置及びデジタル伝送状況把握方法
JP4373182B2 (ja) * 2003-10-31 2009-11-25 株式会社日立国際電気 伝送システム
JP4589043B2 (ja) * 2004-07-14 2010-12-01 株式会社日立国際電気 データ伝送装置
JP2007104087A (ja) * 2005-09-30 2007-04-19 Hitachi Kokusai Electric Inc デジタル伝送装置
JP4758795B2 (ja) * 2006-03-17 2011-08-31 株式会社日立国際電気 伝送状態表示方法

Also Published As

Publication number Publication date
CN101043623B (zh) 2010-06-16
KR20070095188A (ko) 2007-09-28
JP2007251861A (ja) 2007-09-27
KR101267097B1 (ko) 2013-05-23
CN101043623A (zh) 2007-09-26
JP4724267B2 (ja) 2011-07-13

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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)

Effective date: 20220316