[go: up one dir, main page]

HK1064533A1 - Amplitude limiting circuit and cdma communication apparatus - Google Patents

Amplitude limiting circuit and cdma communication apparatus

Info

Publication number
HK1064533A1
HK1064533A1 HK04107171A HK04107171A HK1064533A1 HK 1064533 A1 HK1064533 A1 HK 1064533A1 HK 04107171 A HK04107171 A HK 04107171A HK 04107171 A HK04107171 A HK 04107171A HK 1064533 A1 HK1064533 A1 HK 1064533A1
Authority
HK
Hong Kong
Prior art keywords
communication apparatus
limiting circuit
cdma communication
amplitude limiting
amplitude
Prior art date
Application number
HK04107171A
Other languages
English (en)
Inventor
Motoya Iwasaki
Original Assignee
Nec Corp
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 Nec Corp filed Critical Nec Corp
Publication of HK1064533A1 publication Critical patent/HK1064533A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
HK04107171A 2002-08-22 2004-09-17 Amplitude limiting circuit and cdma communication apparatus HK1064533A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002241830A JP4288458B2 (ja) 2002-08-22 2002-08-22 振幅制限回路及びｃｄｍａ通信装置

Publications (1)

Publication Number Publication Date
HK1064533A1 true HK1064533A1 (en) 2005-01-28

Family

ID=31185217

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04107171A HK1064533A1 (en) 2002-08-22 2004-09-17 Amplitude limiting circuit and cdma communication apparatus

Country Status (5)

Country Link
US (1) US7369580B2 (ja)
EP (2) EP1696577A3 (ja)
JP (1) JP4288458B2 (ja)
CN (1) CN1232064C (ja)
HK (1) HK1064533A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006103924A1 (ja) * 2005-03-25 2006-10-05 Matsushita Electric Industrial Co., Ltd. ピーク電力抑圧装置及びピーク電力抑圧方法
JP2007089029A (ja) * 2005-09-26 2007-04-05 Nippon Hoso Kyokai <Nhk> 音響信号圧縮装置および音響信号圧縮プログラム
EP1940058B1 (en) * 2005-09-27 2013-11-13 Fujitsu Ltd. Radio transmission device having peak suppression function
JP4750592B2 (ja) * 2006-03-17 2011-08-17 富士通株式会社 ピーク抑圧方法、ピーク抑圧装置、無線送信装置
US7796193B2 (en) * 2006-06-29 2010-09-14 Mediatek Inc. Method of adaptive slicing signal
JP5170259B2 (ja) 2008-12-22 2013-03-27 日本電気株式会社 歪補償回路、送信装置、および歪補償方法
US9001678B2 (en) * 2012-02-29 2015-04-07 Hong Kong Applied Science And Technology Research Institute Co., Ltd. False alarm reduction with search windowing and peak suppression
CN112532208B (zh) * 2019-09-18 2024-04-05 惠州迪芬尼声学科技股份有限公司 谐波发生器及用于生成谐波的方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287387A (en) 1992-03-06 1994-02-15 Motorola, Inc. Low splatter peak-to-average signal reduction
JP3335777B2 (ja) 1994-09-05 2002-10-21 松下通信工業株式会社 スペクトル拡散方式通信装置
US5742900A (en) 1994-09-30 1998-04-21 Comsat Corporation Voltage-variable biased inverting limiter for RFI suppression overview
EP0743768B1 (en) 1994-12-05 2004-05-12 Ntt Mobile Communications Network Inc. Device and method for multiplexing signal
US5638403A (en) 1995-04-28 1997-06-10 Motorola, Inc. Low-splatter peak-to-average signal reduction with interpolation
JP2718398B2 (ja) * 1995-06-30 1998-02-25 日本電気株式会社 Ｃｄｍａ基地局送信装置
US5710990A (en) 1996-03-21 1998-01-20 Motorola, Inc. Transmitter which adjusts peak-to-average power of a multicarrier signal by switching between a group of channels and a phase-adjusted group of channels
JPH10111354A (ja) 1996-10-04 1998-04-28 Toshiba Corp 高周波増幅器
JP3548657B2 (ja) * 1996-10-17 2004-07-28 株式会社日立製作所 多重信号の送信装置
US6266320B1 (en) * 1998-04-08 2001-07-24 Telefonaktiebolaget Lm Ericsson (Publ) Amplitude limitation in CDMA system
DE19824233B4 (de) * 1998-05-29 2005-10-06 Telefonaktiebolaget Lm Ericsson (Publ) Amplitudenbegrenzung
US6236864B1 (en) * 1998-11-27 2001-05-22 Nortel Networks Limited CDMA transmit peak power reduction
US6434135B1 (en) 1999-08-31 2002-08-13 Interdigital Technology Corporation Adaptive RF amplifier prelimiter
JP2001285088A (ja) 2000-03-31 2001-10-12 Oki Electric Ind Co Ltd 送信機
US7170952B2 (en) * 2001-07-02 2007-01-30 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in communications systems
US6931239B2 (en) * 2001-07-30 2005-08-16 Hitachi Kokusai Electric Inc. Peak limiter and multi-carrier amplification apparatus
US7095798B2 (en) * 2001-08-02 2006-08-22 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in multi-carrier communications systems

Also Published As

Publication number Publication date
CN1487687A (zh) 2004-04-07
US7369580B2 (en) 2008-05-06
JP2004080696A (ja) 2004-03-11
EP1391996A3 (en) 2005-11-23
EP1696577A2 (en) 2006-08-30
JP4288458B2 (ja) 2009-07-01
US20040047317A1 (en) 2004-03-11
CN1232064C (zh) 2005-12-14
EP1696577A3 (en) 2008-06-11
EP1391996A2 (en) 2004-02-25

Similar Documents

Publication Publication Date Title
AU2003205170A8 (en) Appliance communication method and apparatus
EP1489818A4 (en) COMMUNICATION DEVICE AND COMMUNICATION PROCESS
HK1081891A1 (en) Communication device and communication method
TWI562659B (en) User equipment and base station
HUE056912T2 (hu) Rádiókommunikációs berendezés és rádiókommunikációs eljárás
GB2389005B (en) Communications methods and apparatus for use therein
EP1400927A4 (en) COMMUNICATION DEVICE AND METHOD
GB0115980D0 (en) Apparatus and methods
GB2403551B (en) Portable terminal apparatus
AU2003280792A1 (en) Cdma transmitting apparatus and cdma receiving apparatus
GB2389473B (en) Frequency hopping communication device and method
TW560783U (en) Portable communication apparatus
AU151513S (en) Communication apparatus
GB2389439B (en) Portable terminal apparatus
GB2390787B (en) Communications methods and apparatus
GB0115379D0 (en) Communication method and apparatus
GB2391656B (en) Data-protection circuit and method
HK1064533A1 (en) Amplitude limiting circuit and cdma communication apparatus
HK1074540A1 (en) Cdma reception apparatus and base station thereof
GB2390780B (en) Portable terminal apparatus
GB0207415D0 (en) Electronic communication method and apparatus
PT1630993T (pt) Aparelho de transmissão cdma e método de transmissão cdma
GB0222059D0 (en) Communication method and apparatus
GB2380901B (en) Mobile telecommunications apparatus and methods
EP1408621A4 (en) CDMA RECEIVING APPARATUS AND CDMA RECEIVING METHOD

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: 20110822