SG46376A1 - A multi-channel digital transmitter and receiver - Google Patents

A multi-channel digital transmitter and receiver

Info

Publication number
SG46376A1
SG46376A1 SG1996003849A SG1996003849A SG46376A1 SG 46376 A1 SG46376 A1 SG 46376A1 SG 1996003849 A SG1996003849 A SG 1996003849A SG 1996003849 A SG1996003849 A SG 1996003849A SG 46376 A1 SG46376 A1 SG 46376A1
Authority
SG
Singapore
Prior art keywords
receiver
channel digital
digital transmitter
transmitter
channel
Prior art date
Application number
SG1996003849A
Other languages
English (en)
Inventor
Robert M Harrison
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of SG46376A1 publication Critical patent/SG46376A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J4/00—Combined time-division and frequency-division multiplex systems
    • H04J4/005—Transmultiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0211—Frequency selective networks using specific transformation algorithms, e.g. WALSH functions, Fermat transforms, Mersenne transforms, polynomial transforms, Hilbert transforms
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0251—Comb filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
SG1996003849A 1993-03-08 1994-02-03 A multi-channel digital transmitter and receiver SG46376A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/027,981 US5323391A (en) 1992-10-26 1993-03-08 Multi-channel digital transmitter and receiver

Publications (1)

Publication Number Publication Date
SG46376A1 true SG46376A1 (en) 1998-02-20

Family

ID=21840904

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996003849A SG46376A1 (en) 1993-03-08 1994-02-03 A multi-channel digital transmitter and receiver

Country Status (9)

Country Link
US (1) US5323391A (ja)
EP (1) EP0643887A4 (ja)
JP (1) JPH07506711A (ja)
KR (1) KR0153223B1 (ja)
CA (1) CA2117920C (ja)
FI (1) FI945235A0 (ja)
SG (1) SG46376A1 (ja)
TW (1) TW256006B (ja)
WO (1) WO1994021061A1 (ja)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506335A1 (en) * 1991-03-25 1992-09-30 Seiko Epson Corporation Keyboard for an electronic information apparatus
FR2697704B1 (fr) * 1992-10-29 1995-01-06 France Telecom Procédé et dispositif de segmentation en sous-bandes et de reconstruction d'un signal numérique, et dispositif correspondant.
EP0683398A4 (en) * 1993-02-02 1999-02-24 Yoshimutsu Hirata NON-HARMONIC ANALYSIS OF WAVEFORM DATA AND SYNTHESIS PROCESSING SYSTEM THEREOF.
CA2115118A1 (en) * 1993-02-08 1994-08-09 Arie Geert Cornelis Koppelaar Method of transmitting a data stream, transmitter and receiver
JP2531353B2 (ja) * 1993-07-21 1996-09-04 日本電気株式会社 無線受信機
US5450612A (en) * 1993-08-26 1995-09-12 Motorola, Inc. Communication system for communicating with a plurality of selective call receivers and method therefor
US5668837A (en) * 1993-10-14 1997-09-16 Ericsson Inc. Dual-mode radio receiver for receiving narrowband and wideband signals
US5606575A (en) * 1993-10-29 1997-02-25 Airnet Communications Corporation FFT-based channelizer and combiner employing residue-adder-implemented phase advance
US5535240A (en) * 1993-10-29 1996-07-09 Airnet Communications Corporation Transceiver apparatus employing wideband FFT channelizer and inverse FFT combiner for multichannel communication network
JP2875467B2 (ja) * 1993-11-16 1999-03-31 松下電器産業株式会社 同期加算装置
US5537435A (en) * 1994-04-08 1996-07-16 Carney; Ronald Transceiver apparatus employing wideband FFT channelizer with output sample timing adjustment and inverse FFT combiner for multichannel communication network
US5590156A (en) * 1994-04-22 1996-12-31 Carney; Ronald Multichannel wideband digital receiver making use of multiple wideband tuners having individually selectable gains to extend overall system dynamic range
EP0763309B9 (en) * 1994-06-01 2005-01-12 AirNet Communications Corporation Wideband wireless basestation making use of time division multiple-access bus to effect switchable connections to modulator/demodulator resources
FR2722051B1 (fr) * 1994-07-01 1996-08-02 Thomson Consumer Electronics Procede et dispositif de donnees asynchrones sur un signal numerique
US5490172A (en) * 1994-07-05 1996-02-06 Airnet Communications Corporation Reducing peak-to-average variance of a composite transmitted signal via out-of-band artifact signaling
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
CA2160045C (en) * 1994-10-13 1999-04-27 Thad J. Genrich Parallel cascaded integrator-comb filter
US5838732A (en) * 1994-10-31 1998-11-17 Airnet Communications Corp. Reducing peak-to-average variance of a composite transmitted signal generated by a digital combiner via carrier phase offset
US5533023A (en) * 1994-12-16 1996-07-02 Stanford Telecommunications, Inc. Practical means for dynamic allocation of individual demodulators to a multiplicity of received RF signals
CN1099717C (zh) * 1994-12-19 2003-01-22 皇家菲利浦电子有限公司 带状线滤波器,具有带状线滤波器的接收机及调谐带状线滤波器的方法
US5579341A (en) * 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
US5754597A (en) * 1994-12-29 1998-05-19 Motorola, Inc. Method and apparatus for routing a digitized RF signal to a plurality of paths
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
US5592480A (en) * 1995-03-13 1997-01-07 Carney; Ronald R. Wideband wireless basestation making use of time division multiple-access bus having selectable number of time slots and frame synchronization to support different modulation standards
JP2661587B2 (ja) * 1995-04-11 1997-10-08 日本電気株式会社 無線受信装置
US5930231A (en) * 1995-06-30 1999-07-27 Scientific-Atlanta, Inc. Block spectrum receiver for a broadband communications system
US5710763A (en) * 1995-07-31 1998-01-20 Motorola, Inc. Filtered fast Fourier transmultiplexer and method
CA2227869A1 (en) * 1995-08-04 1997-02-20 Mark D. Hedstrom Universal rf receiver
US5602847A (en) * 1995-09-27 1997-02-11 Lucent Technologies Inc. Segregated spectrum RF downconverter for digitization systems
JPH09138251A (ja) * 1995-11-15 1997-05-27 Advantest Corp 隣接チャンネル漏洩電力の測定装置及び測定方法
FI102440B1 (fi) * 1995-12-29 1998-11-30 Nokia Telecommunications Oy Monihaarainen taajuushyppelevä vastaanotin
US6014412A (en) 1996-04-19 2000-01-11 Amati Communications Corporation Digital radio frequency interference canceller
KR0178003B1 (ko) * 1996-11-01 1999-04-01 삼성전자주식회사 부밴드 디지탈 필터 뱅크 설계방법
US5870436A (en) * 1997-01-02 1999-02-09 Raytheon Company Uniform discrete fourier transform filter parameter encoder
CA2291062C (en) 1997-05-12 2007-05-01 Amati Communications Corporation Method and apparatus for superframe bit allocation
US6009122A (en) * 1997-05-12 1999-12-28 Amati Communciations Corporation Method and apparatus for superframe bit allocation
US6058101A (en) * 1997-06-11 2000-05-02 Industrial Technology Research Institute Synchronization method and system for a digital receiver
US6064692A (en) * 1997-06-20 2000-05-16 Amati Communications Corporation Protocol for transceiver initialization
US5867479A (en) * 1997-06-27 1999-02-02 Lockheed Martin Corporation Digital multi-channel demultiplexer/multiplex (MCD/M architecture)
US6169723B1 (en) * 1997-07-02 2001-01-02 Telefonaktiebolaget Lm Ericsson Computationally efficient analysis and synthesis of real signals using discrete fourier transforms and inverse discrete fourier transforms
US6240129B1 (en) 1997-07-10 2001-05-29 Alcatel Method and windowing unit to reduce leakage, fourier transformer and DMT modem wherein the unit is used
KR100233836B1 (ko) * 1997-08-21 1999-12-01 정선종 다중 반송파 직접 시퀀스 확산 스펙트럼 시스템의 변조 장치
US6005900A (en) * 1997-08-29 1999-12-21 Ericsson Inc. Wideband channelization using subsampled discrete fourier transforms
US5999573A (en) * 1997-08-29 1999-12-07 Ericsson Inc. Wideband channelization with variable sampling frequency
DE19744691A1 (de) * 1997-10-10 1999-04-15 Daimler Benz Aerospace Ag Verfahren zur Bestimmung der Frequenz eines Signals
EP0958660A2 (en) * 1997-11-07 1999-11-24 Cellon France SAS A wireless communication device
US6243368B1 (en) * 1997-12-29 2001-06-05 Lucent Technologies Inc. Digital channel selection
US6009446A (en) * 1998-02-04 1999-12-28 Lsi Logic Corporation Method and apparatus for digital filtration of signals
US6134268A (en) * 1998-10-19 2000-10-17 Motorola, Inc. Apparatus for performing a non-integer sampling rate change in a multichannel polyphase filter
SE521513C2 (sv) * 1999-06-04 2003-11-11 Ericsson Telefon Ab L M Förfarande och anordning i ett flertonstransmissionssystem
US6411653B1 (en) * 1999-07-16 2002-06-25 Lucent Technologies Inc. Cascaded polyphase DFT-filter band for a wireless telecommunications system
US6990060B2 (en) * 2000-02-11 2006-01-24 Bae Systems Polyphase-discrete fourier transform (DFT) sub-band definition filtering architecture
DE10008699C1 (de) * 2000-02-24 2001-05-23 Daimler Chrysler Ag Verfahren und Vorrichtung zur Analog-Digital-Wandlung eines Signals
KR20010096845A (ko) * 2000-04-15 2001-11-08 조정남 다중 채널 동시 검색 기능을 갖는 무선 호출기와 그데이터 송수신 방법
DE10028593C1 (de) * 2000-06-14 2001-10-18 Daimler Chrysler Ag Verfahren und Vorrichtung zur Digital-Analog-Wandlung eines Signals
US7200185B2 (en) * 2000-08-21 2007-04-03 Viasat, Inc. Star receiver burst processing
DE10044258A1 (de) * 2000-09-07 2002-04-04 Siemens Ag Verfahren und Vorrichtung zum Konvertieren einer Abtastfrequenz
US6731690B2 (en) * 2000-12-01 2004-05-04 Motorola, Inc. Methods and apparatus for transmultiplexing a multi-channel signal
US7145934B2 (en) * 2001-03-03 2006-12-05 Oxford Semiconductor Inc Multichannel signal transmission and reception for bluetooth systems
US7290021B2 (en) * 2001-04-24 2007-10-30 California Institute Of Technology Method and apparatus for parallel signal processing
FR2825550B1 (fr) * 2001-05-30 2003-09-05 Mitsubishi Electric Inf Tech Dispositif et procede de demodulation numerique d'un signal recu par selection d'un filtre et recepteur de communication numerique le comportant
FR2825552B1 (fr) * 2001-05-30 2004-07-09 Mitsubishi Electric Inf Tech Dispositif et procede de demodulation numerique d'un signal recu par selection d'un filtre et recepteur de communication numerique le comportant
US6996188B2 (en) 2001-06-25 2006-02-07 Cyntrust Communications, Inc. Multiple sub-channel modulation and demodulation with arbitrarily defined channel spacing and sampling rates
US20040047284A1 (en) * 2002-03-13 2004-03-11 Eidson Donald Brian Transmit diversity framing structure for multipath channels
US7711510B2 (en) * 2002-10-24 2010-05-04 Lecroy Corporation Method of crossover region phase correction when summing signals in multiple frequency bands
US10659071B2 (en) 2002-10-24 2020-05-19 Teledyne Lecroy, Inc. High bandwidth oscilloscope
US7219037B2 (en) 2002-10-24 2007-05-15 Lecroy Corporation High bandwidth oscilloscope
US7957938B2 (en) * 2002-10-24 2011-06-07 Lecroy Corporation Method and apparatus for a high bandwidth oscilloscope utilizing multiple channel digital bandwidth interleaving
US7079828B1 (en) * 2002-10-25 2006-07-18 Edgewater Computer Systems, Inc. Method and apparatus for side-lobe cancellation in wideband radio systems
US7336695B1 (en) * 2003-03-10 2008-02-26 Hendershot James R m-ary variable shift keying communications system
EP1616424A4 (en) * 2003-04-21 2009-12-02 Rgb Networks Inc MULTICHANNEL QUADRATURE AMPLITUDE MODULATION WITH WIDE BAND OF CABLE TELEVISION SIGNALS
US20040226045A1 (en) * 2003-05-09 2004-11-11 Sbc Knowledge Ventures, L.P. Application services coordinated DSL-satellite multicast content delivery
US6947449B2 (en) * 2003-06-20 2005-09-20 Nokia Corporation Apparatus, and associated method, for communication system exhibiting time-varying communication conditions
CA2537293C (en) 2003-08-29 2014-04-01 Rgb Networks, Inc. Advanced, adaptive video multiplexer system
US7027942B1 (en) 2004-10-26 2006-04-11 The Mitre Corporation Multirate spectral analyzer with adjustable time-frequency resolution
KR101231730B1 (ko) * 2005-05-04 2013-02-12 톰슨 라이센싱 주파수 변환 장치 및 방법
KR100842500B1 (ko) * 2005-06-29 2008-07-01 삼성전자주식회사 주파수 오버레이 통신 시스템에서 신호 송수신 시스템 및방법
US7672645B2 (en) 2006-06-15 2010-03-02 Bitwave Semiconductor, Inc. Programmable transmitter architecture for non-constant and constant envelope modulation
EP2030389A4 (en) * 2006-06-16 2013-07-17 Preco Electronics Inc NARROW BAND DETECTIONS OF A RECEIVED SIGNAL
US20080084939A1 (en) * 2006-10-06 2008-04-10 Texas Instruments Sample Buffer Size Reduction for Synchronized DMT-VDSL With Shared FFT Compute Units
FR2910743B1 (fr) * 2006-12-22 2009-02-20 Thales Sa Banque de filtres numeriques cascadable, et circuit de reception comportant une telle banque de filtre en cascade.
US8271567B2 (en) * 2007-09-26 2012-09-18 Intersil Americas Inc. Methods and systems for compression, storage, and generation of digital filter coefficients
US8610514B2 (en) * 2011-06-20 2013-12-17 Rgb Networks, Inc. Full spectrum modulator for digital television signals
US8803730B2 (en) * 2011-07-21 2014-08-12 The Boeing Company Radar pulse detection using a digital radar receiver
WO2014157058A1 (ja) * 2013-03-28 2014-10-02 日本電気株式会社 鳥検知装置、鳥検知システム、鳥検知方法およびプログラム
US9491029B2 (en) * 2014-12-15 2016-11-08 Apple Inc. Devices and methods for reducing signal distortion in I/Q modulation transceivers
US10141974B2 (en) 2015-03-17 2018-11-27 Shai Waxman High-capacity FHSS-MA devices and methods
CN112422105B (zh) * 2020-10-27 2021-07-16 中国人民解放军海军工程大学 一种仿生梳状滤波器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112374A (en) * 1976-09-23 1978-09-05 Steinbrecher Corporation Doubly balanced mixer with optimized dynamic range
US4785447A (en) * 1987-02-17 1988-11-15 Nec Corporation FDM demultiplexer using oversampled digital filters
US4876542A (en) * 1988-01-25 1989-10-24 Motorola, Inc. Multiple output oversampling A/D converter with each output containing data and noise
FR2638303B1 (fr) * 1988-10-26 1991-01-18 Texas Instruments France Filtre interpolatif perfectionne
US4999798A (en) * 1990-03-01 1991-03-12 Motorola, Inc. Transient free interpolating decimator
JPH04149599A (ja) * 1990-10-12 1992-05-22 Pioneer Electron Corp 残響音生成装置

Also Published As

Publication number Publication date
EP0643887A1 (en) 1995-03-22
KR950701480A (ko) 1995-03-23
TW256006B (ja) 1995-09-01
CA2117920C (en) 1998-07-14
WO1994021061A1 (en) 1994-09-15
FI945235A (fi) 1994-11-07
US5323391A (en) 1994-06-21
EP0643887A4 (en) 1997-09-10
JPH07506711A (ja) 1995-07-20
CA2117920A1 (en) 1994-09-15
KR0153223B1 (ko) 1998-11-16
FI945235A0 (fi) 1994-11-07

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