ID19084A - Filter penyesuai digital - Google Patents

Filter penyesuai digital

Info

Publication number
ID19084A
ID19084A ID971061A ID971061A ID19084A ID 19084 A ID19084 A ID 19084A ID 971061 A ID971061 A ID 971061A ID 971061 A ID971061 A ID 971061A ID 19084 A ID19084 A ID 19084A
Authority
ID
Indonesia
Prior art keywords
adjustment filter
digital adjustment
digital
filter
adjustment
Prior art date
Application number
ID971061A
Other languages
English (en)
Indonesian (id)
Inventor
Kuniyuki Suzuki
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of ID19084A publication Critical patent/ID19084A/id

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
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/15—Correlation function computation including computation of convolution operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • Computing Systems (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
ID971061A 1996-12-10 1997-03-31 Filter penyesuai digital ID19084A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32956196A JP3884115B2 (ja) 1996-12-10 1996-12-10 デジタルマッチドフィルタ

Publications (1)

Publication Number Publication Date
ID19084A true ID19084A (id) 1998-06-11

Family

ID=18222739

Family Applications (1)

Application Number Title Priority Date Filing Date
ID971061A ID19084A (id) 1996-12-10 1997-03-31 Filter penyesuai digital

Country Status (4)

Country Link
US (1) US5903595A (ja)
JP (1) JP3884115B2 (ja)
CN (1) CN1084975C (ja)
ID (1) ID19084A (ja)

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US6075807A (en) * 1997-03-25 2000-06-13 Intermec Ip Corp. Windowed digital matched filter circuit for power reduction in battery-powered CDMA radios
JP2858573B1 (ja) * 1997-07-30 1999-02-17 日本電気株式会社 スペクトラム拡散受信装置
JP3503433B2 (ja) * 1997-07-31 2004-03-08 株式会社日立製作所 スペクトル拡散受信機
EP0989696B1 (en) * 1998-05-07 2014-08-20 Ntt Docomo, Inc. Method of assignment and transmission of spread signals in direct sequence spread spectrum cdma mobile communication system, mobile communication system, and transmitter, receiver and transmitter/receiver of mobile communication system
JP3397695B2 (ja) 1998-07-16 2003-04-21 松下電器産業株式会社 相関検出装置及びｃｄｍａ受信装置
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
JP2000134134A (ja) * 1998-10-27 2000-05-12 Toshiba Corp ディジタルマッチトフィルタ
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
JP3363107B2 (ja) 1999-03-01 2003-01-08 日本電気株式会社 相関値検出装置、それを有するスペクトラム逆拡散装置、受信端末及び送受信端末並びに相関値検出方法
JP3387079B2 (ja) 1999-03-01 2003-03-17 日本電気株式会社 相関値検出装置、それを有するスペクトラム逆拡散装置、受信端末及び送受信端末並びに相関値検出方法
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
JP3771390B2 (ja) * 1999-03-16 2006-04-26 富士通株式会社 マッチドフィルタ
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
JP4245227B2 (ja) 1999-06-03 2009-03-25 シャープ株式会社 デジタルマッチドフィルタ
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
FI114887B (fi) 1999-10-13 2005-01-14 U Nav Microelectronics Corp Hajaspektrivastaanottimen signaalinhakujärjestelmä
FI119011B (fi) 1999-10-13 2008-06-13 U Nav Microelectronics Corp Sovitettu suodatin ja hajaspektrivastaanotin
FI111579B (fi) 1999-10-13 2003-08-15 U Nav Microelectronics Corp Hajaspektrivastaanotin
FI111578B (fi) * 1999-10-13 2003-08-15 U Nav Microelectronics Corp Korrelaattori
US6981180B1 (en) * 2000-03-16 2005-12-27 Akamai Technologies, Inc. Method and apparatus for testing request-response service using live connection traffic
JP3453100B2 (ja) * 2000-03-31 2003-10-06 松下電器産業株式会社 マッチドフィルタおよびマッチドフィルタにおける演算方法
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
JP3808280B2 (ja) * 2000-04-28 2006-08-09 富士通株式会社 同期確立装置と同期確立方法及び受信機
CN1383612A (zh) * 2000-05-16 2002-12-04 株式会社鹰山 匹配滤波器电路
JP3415579B2 (ja) 2000-11-09 2003-06-09 松下電器産業株式会社 マッチドフィルタおよび相関検出演算方法
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7031377B2 (en) * 2001-01-26 2006-04-18 Agere Systems Inc. Receiver and low power digital filter therefor
CN1211968C (zh) * 2001-07-11 2005-07-20 连宇通信有限公司 用于码分多址通信系统的匹配滤波器
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
JP4034571B2 (ja) 2002-02-08 2008-01-16 松下電器産業株式会社 同期検出回路
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
EP1427116B1 (en) 2002-12-04 2018-03-28 Nippon Telegraph And Telephone Corporation Spread-spectrum demodulator
CN101258687A (zh) * 2005-07-21 2008-09-03 伟俄内克斯研究公司 具有直流偏移修正的叠加
US7991042B2 (en) * 2008-02-04 2011-08-02 Mediatek Inc. GNSS receiver and method for GNSS memory code generation
US8185718B2 (en) * 2008-02-04 2012-05-22 Mediatek Inc. Code memory capable of code provision for a plurality of physical channels
ES2694076T3 (es) 2009-10-01 2018-12-17 Interdigital Patent Holdings, Inc. Transmisión de datos de control del enlace ascendente
CN102812658B (zh) 2010-01-08 2015-12-16 交互数字专利控股公司 针对多个载波的信道状态信息传输的方法及设备
GB2511079B (en) 2013-02-22 2015-05-27 Cascoda Ltd Transceiver
US9130786B2 (en) * 2013-03-15 2015-09-08 Qualcomm Incorporated Device and method for computing a channel estimate
US11483026B1 (en) * 2021-05-14 2022-10-25 Samsung Electronics Co., Ltd Method and apparatus for TMBOC transmission with narrowband receivers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630283A (en) * 1985-07-17 1986-12-16 Rca Corporation Fast acquisition burst mode spread spectrum communications system with pilot carrier
US4930139A (en) * 1989-05-31 1990-05-29 O'neill Communications, Inc. Spread spectrum communication system
JPH082032B2 (ja) * 1990-01-31 1996-01-10 双葉電子工業株式会社 スペクトラム拡散通信用相関器
JPH0758669A (ja) * 1993-08-11 1995-03-03 Fujitsu Ltd デジタルマッチドフィルタ
JPH07170210A (ja) * 1993-12-16 1995-07-04 Nec Corp スペクトラム拡散変復調方法及びそれを用いた変調器・ 復調器

Also Published As

Publication number Publication date
US5903595A (en) 1999-05-11
CN1185064A (zh) 1998-06-17
JP3884115B2 (ja) 2007-02-21
JPH10173485A (ja) 1998-06-26
CN1084975C (zh) 2002-05-15

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