WO2002095961A3 - A method and electronic circuit for detecting an alternating current component - Google Patents

A method and electronic circuit for detecting an alternating current component Download PDF

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Publication number
WO2002095961A3
WO2002095961A3 PCT/IB2002/001821 IB0201821W WO02095961A3 WO 2002095961 A3 WO2002095961 A3 WO 2002095961A3 IB 0201821 W IB0201821 W IB 0201821W WO 02095961 A3 WO02095961 A3 WO 02095961A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
maximum
alternating current
current component
electronic circuit
Prior art date
Application number
PCT/IB2002/001821
Other languages
French (fr)
Other versions
WO2002095961A2 (en
Inventor
Voorthuisen Paul H J M Van
Original Assignee
Koninkl Philips Electronics Nv
Voorthuisen Paul H J M Van
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 Koninkl Philips Electronics Nv, Voorthuisen Paul H J M Van filed Critical Koninkl Philips Electronics Nv
Priority to EP02730607A priority Critical patent/EP1396086A2/en
Priority to JP2002592304A priority patent/JP2004520774A/en
Publication of WO2002095961A2 publication Critical patent/WO2002095961A2/en
Publication of WO2002095961A3 publication Critical patent/WO2002095961A3/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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1081—Reduction of multipath noise

Abstract

An electronic circuit for detecting an alternating current component of a signal has a maximum-hold detector (1) for holding a maximum signal level reached by the signal, a top detector (3) having a first input coupled to an output of the maximum-hold detector for inputting of the maximum signal level, the top detector having a second input for receiving the signal and having a comparator for comparing the signal to the maximum signal level and for outputting a top detection signal if the signal falls below the maximum signal level, and corresponding minimum-hold and dale detectors (2, 3) for producing an output signal being indicative of the presence of the alternating current component. The electronic circuit provides for the detection of the alternating current component irrespective of varying direct current components of the signal. The circuit can be employed for the detection of co-channel and / or multi path interference.
PCT/IB2002/001821 2001-05-25 2002-05-22 A method and electronic circuit for detecting an alternating current component WO2002095961A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02730607A EP1396086A2 (en) 2001-05-25 2002-05-22 A method and electronic circuit for detecting an alternating current component
JP2002592304A JP2004520774A (en) 2001-05-25 2002-05-22 Method and electronic circuit for detecting AC component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01201966.7 2001-05-25
EP01201966 2001-05-25

Publications (2)

Publication Number Publication Date
WO2002095961A2 WO2002095961A2 (en) 2002-11-28
WO2002095961A3 true WO2002095961A3 (en) 2003-02-13

Family

ID=8180367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/001821 WO2002095961A2 (en) 2001-05-25 2002-05-22 A method and electronic circuit for detecting an alternating current component

Country Status (3)

Country Link
EP (1) EP1396086A2 (en)
JP (1) JP2004520774A (en)
WO (1) WO2002095961A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998289A (en) * 1988-06-02 1991-03-05 Motorola, Inc. Signal integrity control technique for an RF communication system
US5555452A (en) * 1995-05-12 1996-09-10 Callaway, Jr.; Edgar H. Peak and valley signal measuring circuit using single digital-to-analog converter
US5949827A (en) * 1997-09-19 1999-09-07 Motorola, Inc. Continuous integration digital demodulator for use in a communication device
US5966406A (en) * 1996-12-30 1999-10-12 Windbond Electronics Corp. Method and apparatus for noise burst detection in signal processors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998289A (en) * 1988-06-02 1991-03-05 Motorola, Inc. Signal integrity control technique for an RF communication system
US5555452A (en) * 1995-05-12 1996-09-10 Callaway, Jr.; Edgar H. Peak and valley signal measuring circuit using single digital-to-analog converter
US5966406A (en) * 1996-12-30 1999-10-12 Windbond Electronics Corp. Method and apparatus for noise burst detection in signal processors
US5949827A (en) * 1997-09-19 1999-09-07 Motorola, Inc. Continuous integration digital demodulator for use in a communication device

Also Published As

Publication number Publication date
EP1396086A2 (en) 2004-03-10
WO2002095961A2 (en) 2002-11-28
JP2004520774A (en) 2004-07-08

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