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TWI371935B - Communication system and demodulating method - Google Patents

Communication system and demodulating method

Info

Publication number
TWI371935B
TWI371935B TW097101610A TW97101610A TWI371935B TW I371935 B TWI371935 B TW I371935B TW 097101610 A TW097101610 A TW 097101610A TW 97101610 A TW97101610 A TW 97101610A TW I371935 B TWI371935 B TW I371935B
Authority
TW
Taiwan
Prior art keywords
communication system
demodulating method
demodulating
communication
Prior art date
Application number
TW097101610A
Other languages
English (en)
Other versions
TW200847663A (en
Inventor
Yih Ming Tsuie
Ming Luen Liou
Chien Huei Lin
Chih Hung Lin
Wei Tsen Lin
Original Assignee
Mediatek 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 Mediatek Inc filed Critical Mediatek Inc
Publication of TW200847663A publication Critical patent/TW200847663A/zh
Application granted granted Critical
Publication of TWI371935B publication Critical patent/TWI371935B/zh

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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0046—Open loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops
    • H04L2027/0081—Switching between loops between loops of different bandwidths

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
TW097101610A 2007-05-23 2008-01-16 Communication system and demodulating method TWI371935B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/752,440 US7751514B2 (en) 2007-05-23 2007-05-23 System and method of detecting burst noise and minimizing the effect of burst noise

Publications (2)

Publication Number Publication Date
TW200847663A TW200847663A (en) 2008-12-01
TWI371935B true TWI371935B (en) 2012-09-01

Family

ID=40072368

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097101610A TWI371935B (en) 2007-05-23 2008-01-16 Communication system and demodulating method

Country Status (3)

Country Link
US (1) US7751514B2 (zh)
CN (1) CN101312350B (zh)
TW (1) TWI371935B (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100040128A1 (en) * 2008-08-15 2010-02-18 Mediatek Inc. Equalizer and Method for Processing a Signal and Communication Receiving System Comprising the Same
US8326075B2 (en) * 2008-09-11 2012-12-04 Google Inc. System and method for video encoding using adaptive loop filter
US8780971B1 (en) 2011-04-07 2014-07-15 Google, Inc. System and method of encoding using selectable loop filters
US8780996B2 (en) 2011-04-07 2014-07-15 Google, Inc. System and method for encoding and decoding video data
US8781004B1 (en) 2011-04-07 2014-07-15 Google Inc. System and method for encoding video using variable loop filter
US8885706B2 (en) 2011-09-16 2014-11-11 Google Inc. Apparatus and methodology for a video codec system with noise reduction capability
US8306166B1 (en) * 2012-01-17 2012-11-06 Casa Systems, Inc. System and method for detecting burst noise during quadrature amplitude modulation communications
US9131073B1 (en) 2012-03-02 2015-09-08 Google Inc. Motion estimation aided noise reduction
CN103391560B (zh) * 2012-05-07 2016-03-16 鼎桥通信技术有限公司 特殊突发检测方法和装置
US9344729B1 (en) 2012-07-11 2016-05-17 Google Inc. Selective prediction signal filtering
US10102613B2 (en) 2014-09-25 2018-10-16 Google Llc Frequency-domain denoising
CN106788268B (zh) * 2015-12-21 2020-06-12 深圳市汇顶科技股份有限公司 混频模块
CN113739907B (zh) * 2021-09-04 2024-02-20 天津大学 一种脑力劳动工作状态下的声环境质量判定方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691176A (en) * 1986-03-17 1987-09-01 General Electric Company Adaptive carrier tracking circuit
JPH05207075A (ja) * 1992-01-24 1993-08-13 Hitachi Ltd ディジタル通信システム
US5548839A (en) * 1994-10-14 1996-08-20 Caldwell; Stephen P. Wide band radio-frequency converter having multiple use of intermediate frequency translators
ES2236784T3 (es) * 1997-01-31 2005-07-16 Alcatel Metodo y dispositivo para intercalar y desintercalar datos digitales y sistema de comunicacion.
US6055231A (en) * 1997-03-12 2000-04-25 Interdigital Technology Corporation Continuously adjusted-bandwidth discrete-time phase-locked loop
US6647069B1 (en) * 1998-05-01 2003-11-11 Texas Instruments Incorporated Method and apparatus for capacity increase and enhanced communications performance in CATV networks
EP1346398A2 (en) * 2000-11-01 2003-09-24 Actelis Networks Ltd. High speed access system over copper cable plant
FR2821505B1 (fr) * 2001-02-23 2003-06-13 Nortel Networks Ltd Procede de transmission de donnees en mode acquitte entre une unite de controle et un terminal, et unite de controle mettant en oeuvre un tel procede
CN1486008A (zh) * 2002-09-24 2004-03-31 深圳市中兴通讯股份有限公司 一种码分多址系统的自动频率校正方法和装置
US7239682B2 (en) * 2002-11-12 2007-07-03 Carnegie Mellon University Timing recovery system and method

Also Published As

Publication number Publication date
CN101312350B (zh) 2012-01-25
US20080291992A1 (en) 2008-11-27
CN101312350A (zh) 2008-11-26
TW200847663A (en) 2008-12-01
US7751514B2 (en) 2010-07-06

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees