WO2001082541A3 - Signal generating method and apparatus using sequential memory banks - Google Patents

Signal generating method and apparatus using sequential memory banks Download PDF

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Publication number
WO2001082541A3
WO2001082541A3 PCT/GB2001/001873 GB0101873W WO0182541A3 WO 2001082541 A3 WO2001082541 A3 WO 2001082541A3 GB 0101873 W GB0101873 W GB 0101873W WO 0182541 A3 WO0182541 A3 WO 0182541A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal generating
memory banks
generating method
waveform
component
Prior art date
Application number
PCT/GB2001/001873
Other languages
French (fr)
Other versions
WO2001082541A2 (en
Inventor
Robert William Armstrong
David Paul Owen
Neil Edwin Thomas
James Edward Haigh
Original Assignee
Ifr Ltd
Robert William Armstrong
David Paul Owen
Neil Edwin Thomas
James Edward Haigh
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 Ifr Ltd, Robert William Armstrong, David Paul Owen, Neil Edwin Thomas, James Edward Haigh filed Critical Ifr Ltd
Publication of WO2001082541A2 publication Critical patent/WO2001082541A2/en
Publication of WO2001082541A3 publication Critical patent/WO2001082541A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H04L25/03859—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping shaping using look up tables for partial waveforms

Abstract

Waveform generator (40) is capable of generating an arbitrary waveform in quadrature format. Each of the I and Q components of the waveform is generated by addressing data in a plurality of non-volatile storage blocks (e.g. A-F for the I component) and demultiplexing (via unit 44 for the I channel) the retrieved data into a sequence forming the component which can then be combined with the other component in the analogue domain to produce the desired waveform.
PCT/GB2001/001873 2000-04-27 2001-04-27 Signal generating method and apparatus using sequential memory banks WO2001082541A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0010284.8 2000-04-27
GB0010284A GB0010284D0 (en) 2000-04-27 2000-04-27 Signal generating methods and apparatus

Publications (2)

Publication Number Publication Date
WO2001082541A2 WO2001082541A2 (en) 2001-11-01
WO2001082541A3 true WO2001082541A3 (en) 2002-04-18

Family

ID=9890624

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/001873 WO2001082541A2 (en) 2000-04-27 2001-04-27 Signal generating method and apparatus using sequential memory banks

Country Status (2)

Country Link
GB (1) GB0010284D0 (en)
WO (1) WO2001082541A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7050000B2 (en) * 2003-08-19 2006-05-23 Northrop Grumman Corporation Radar based application programmable waveform generator component

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924375A (en) * 1987-10-23 1990-05-08 Chips And Technologies, Inc. Page interleaved memory access
EP0531100A2 (en) * 1991-09-04 1993-03-10 Advanced Micro Devices, Inc. Baseband pulse shaper for GMSK modulators
GB2266646A (en) * 1989-08-14 1993-11-03 Interdigital Tech Corp A finite impulse response chip for use in a subscriber unit for a wireless digital communication system
US5765182A (en) * 1995-04-13 1998-06-09 Lsi Logic Corporation Interleaving memory on separate boards
US5815046A (en) * 1997-02-11 1998-09-29 Stanford Telecom Tunable digital modulator integrated circuit using multiplexed D/A converters
EP0944215A2 (en) * 1998-03-19 1999-09-22 General Instrument Corporation Nyquist filtering in quadratur amplitude modulators

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924375A (en) * 1987-10-23 1990-05-08 Chips And Technologies, Inc. Page interleaved memory access
GB2266646A (en) * 1989-08-14 1993-11-03 Interdigital Tech Corp A finite impulse response chip for use in a subscriber unit for a wireless digital communication system
EP0531100A2 (en) * 1991-09-04 1993-03-10 Advanced Micro Devices, Inc. Baseband pulse shaper for GMSK modulators
US5765182A (en) * 1995-04-13 1998-06-09 Lsi Logic Corporation Interleaving memory on separate boards
US5815046A (en) * 1997-02-11 1998-09-29 Stanford Telecom Tunable digital modulator integrated circuit using multiplexed D/A converters
EP0944215A2 (en) * 1998-03-19 1999-09-22 General Instrument Corporation Nyquist filtering in quadratur amplitude modulators

Also Published As

Publication number Publication date
GB0010284D0 (en) 2000-06-14
WO2001082541A2 (en) 2001-11-01

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