WO2007100582A3 - Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same - Google Patents

Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same Download PDF

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Publication number
WO2007100582A3
WO2007100582A3 PCT/US2007/004500 US2007004500W WO2007100582A3 WO 2007100582 A3 WO2007100582 A3 WO 2007100582A3 US 2007004500 W US2007004500 W US 2007004500W WO 2007100582 A3 WO2007100582 A3 WO 2007100582A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
receiving circuit
group delay
compensating
delay characteristics
Prior art date
Application number
PCT/US2007/004500
Other languages
French (fr)
Other versions
WO2007100582A2 (en
Inventor
Joonbae Park
Kyeongho Lee
Original Assignee
Gct Semiconductor Inc
Joonbae Park
Kyeongho Lee
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 KR1020060017516A external-priority patent/KR100710123B1/en
Application filed by Gct Semiconductor Inc, Joonbae Park, Kyeongho Lee filed Critical Gct Semiconductor Inc
Publication of WO2007100582A2 publication Critical patent/WO2007100582A2/en
Publication of WO2007100582A3 publication Critical patent/WO2007100582A3/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

Embodiments of methods and apparatuses can compensate gain ripple and/or group delay characteristics of at least one filter, a receiving circuit embodying a filter, or a communication system having a wireless terminal embodying the receiving circuit.
PCT/US2007/004500 2006-02-23 2007-02-22 Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same WO2007100582A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020060017516A KR100710123B1 (en) 2006-02-23 2006-02-23 Receiving circuit and method for compensating gain ripple and group delay of filter
KR10-2006-0017516 2006-02-23
US11/708,702 US7515662B2 (en) 2006-02-23 2007-02-21 Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same
US11/708,702 2007-02-21

Publications (2)

Publication Number Publication Date
WO2007100582A2 WO2007100582A2 (en) 2007-09-07
WO2007100582A3 true WO2007100582A3 (en) 2008-10-30

Family

ID=38459532

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/004500 WO2007100582A2 (en) 2006-02-23 2007-02-22 Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same

Country Status (1)

Country Link
WO (1) WO2007100582A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040087296A1 (en) * 2002-10-25 2004-05-06 Gct Semiconductor, Inc. Radio receiver and method for AM suppression and DC-offset removal
US20040234011A1 (en) * 1999-09-17 2004-11-25 Bengt Lindoff Apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal
US20050260949A1 (en) * 2004-05-18 2005-11-24 Peter Kiss I/Q compensation of frequency dependent response mismatch in a pair of analog low-pass filters
US7286804B2 (en) * 2002-10-29 2007-10-23 Niigata Seimitsu Co., Ltd. Receiver digital-analog converter and tuning circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040234011A1 (en) * 1999-09-17 2004-11-25 Bengt Lindoff Apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal
US20040087296A1 (en) * 2002-10-25 2004-05-06 Gct Semiconductor, Inc. Radio receiver and method for AM suppression and DC-offset removal
US7286804B2 (en) * 2002-10-29 2007-10-23 Niigata Seimitsu Co., Ltd. Receiver digital-analog converter and tuning circuit
US20050260949A1 (en) * 2004-05-18 2005-11-24 Peter Kiss I/Q compensation of frequency dependent response mismatch in a pair of analog low-pass filters

Also Published As

Publication number Publication date
WO2007100582A2 (en) 2007-09-07

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