WO2002073797A8 - Radio reveiver - Google Patents

Radio reveiver

Info

Publication number
WO2002073797A8
WO2002073797A8 PCT/EP2002/002660 EP0202660W WO02073797A8 WO 2002073797 A8 WO2002073797 A8 WO 2002073797A8 EP 0202660 W EP0202660 W EP 0202660W WO 02073797 A8 WO02073797 A8 WO 02073797A8
Authority
WO
WIPO (PCT)
Prior art keywords
filter
radio receiver
radio
reveiver
digital filter
Prior art date
Application number
PCT/EP2002/002660
Other languages
French (fr)
Other versions
WO2002073797A2 (en
WO2002073797A3 (en
Inventor
Erik Hertz
Joaquin Canovas
Shousheng He
Antonio Vicent
Original Assignee
Ericsson Telefon Ab L M
Erik Hertz
Joaquin Canovas
Shousheng He
Antonio Vicent
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
Priority claimed from GB0106162A external-priority patent/GB2373385B/en
Priority claimed from US10/093,765 external-priority patent/US6673023B2/en
Application filed by Ericsson Telefon Ab L M, Erik Hertz, Joaquin Canovas, Shousheng He, Antonio Vicent filed Critical Ericsson Telefon Ab L M
Priority to AU2002237325A priority Critical patent/AU2002237325A1/en
Priority to US10/469,248 priority patent/US20040148322A1/en
Publication of WO2002073797A2 publication Critical patent/WO2002073797A2/en
Publication of WO2002073797A3 publication Critical patent/WO2002073797A3/en
Publication of WO2002073797A8 publication Critical patent/WO2002073797A8/en

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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes

Abstract

There is disclosed a radio receiver, and a filter (24) which may be used in a radio receiver, in which received signals are applied to a digital filter twice, with an intermediate time reversal. This has the effect that any phase distortion introduced by the filter is cancelled by the application of the time inverted signal to the filter. This means that a non-linear filter can be used. Specifically, in preferred embodiments of the invention, an IIR wave digital filter (40) can be used, which means that the device can have lower power consumption and requires a smaller silicon area than would otherwise be the case.
PCT/EP2002/002660 2001-03-13 2002-03-11 Radio reveiver WO2002073797A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002237325A AU2002237325A1 (en) 2001-03-13 2002-03-11 Radio reveiver
US10/469,248 US20040148322A1 (en) 2001-03-13 2002-03-11 Radio reveiver

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0106162.1 2001-03-13
GB0106162A GB2373385B (en) 2001-03-13 2001-03-13 Radio receiver
US27692801P 2001-03-20 2001-03-20
US60/276,928 2001-03-20
US10/093,765 US6673023B2 (en) 2001-03-23 2002-03-08 Micro-invasive breast biopsy device

Publications (3)

Publication Number Publication Date
WO2002073797A2 WO2002073797A2 (en) 2002-09-19
WO2002073797A3 WO2002073797A3 (en) 2003-01-30
WO2002073797A8 true WO2002073797A8 (en) 2003-11-13

Family

ID=32096618

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/002660 WO2002073797A2 (en) 2001-03-13 2002-03-11 Radio reveiver

Country Status (1)

Country Link
WO (1) WO2002073797A2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605926A1 (en) * 1986-02-25 1987-08-27 Standard Elektrik Lorenz Ag Filter arrangement
US5337264A (en) * 1992-06-01 1994-08-09 Levien Raphael L Time reversal gaussian approximation filter
GB9601488D0 (en) * 1996-01-25 1996-03-27 Rca Thomson Licensing Corp Time reversal filter

Also Published As

Publication number Publication date
WO2002073797A2 (en) 2002-09-19
WO2002073797A3 (en) 2003-01-30

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