HK1032159A1 - Demodulator circuits - Google Patents

Demodulator circuits

Info

Publication number
HK1032159A1
HK1032159A1 HK01102786A HK01102786A HK1032159A1 HK 1032159 A1 HK1032159 A1 HK 1032159A1 HK 01102786 A HK01102786 A HK 01102786A HK 01102786 A HK01102786 A HK 01102786A HK 1032159 A1 HK1032159 A1 HK 1032159A1
Authority
HK
Hong Kong
Prior art keywords
demodulator circuits
phase shift
time delay
delay element
shift element
Prior art date
Application number
HK01102786A
Other languages
English (en)
Inventor
Sven Mattisson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of HK1032159A1 publication Critical patent/HK1032159A1/xx

Links

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
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/22—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of active elements with more than two electrodes to which two signals are applied derived from the signal to be demodulated and having a phase difference related to the frequency deviation, e.g. phase detector
    • 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
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
    • H03D3/20—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements producing pulses whose amplitude or duration depends on phase difference
    • 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
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H03D3/247—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop using a controlled phase shifter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Amplifiers (AREA)
HK01102786A 1998-03-24 2001-04-19 Demodulator circuits HK1032159A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9806206A GB2335810B (en) 1998-03-24 1998-03-24 Demodulator circuits
PCT/EP1999/001847 WO1999049570A1 (en) 1998-03-24 1999-03-19 Demodulator circuits

Publications (1)

Publication Number Publication Date
HK1032159A1 true HK1032159A1 (en) 2001-07-06

Family

ID=10829098

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01102786A HK1032159A1 (en) 1998-03-24 2001-04-19 Demodulator circuits

Country Status (14)

Country Link
US (1) US6335659B1 (xx)
EP (1) EP1064720B1 (xx)
JP (1) JP4260367B2 (xx)
KR (1) KR100671093B1 (xx)
CN (1) CN1294779A (xx)
AT (1) ATE212766T1 (xx)
AU (1) AU752635B2 (xx)
BR (1) BR9909046A (xx)
DE (1) DE69900844D1 (xx)
EE (1) EE200000556A (xx)
ES (1) ES2168008T3 (xx)
GB (1) GB2335810B (xx)
HK (1) HK1032159A1 (xx)
WO (1) WO1999049570A1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19958096B4 (de) * 1999-12-02 2012-04-19 Telefonaktiebolaget Lm Ericsson (Publ) Verfahren zum Entwerfen einer Filterschaltung
US6404308B1 (en) * 1999-12-23 2002-06-11 Telefonaktiebolaget Lm Ericsson (Publ) Phase-compensated impedance converter
GB0200094D0 (en) * 2002-01-04 2002-02-20 Koninkl Philips Electronics Nv Balanced gyrator and devices including the balanced gyrator
CN104185175A (zh) * 2014-07-29 2014-12-03 捷开通讯科技(上海)有限公司 电子设备之间信息自动转发的系统与方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL169807C (nl) * 1973-07-23 1982-08-16 Philips Nv Inrichting met een gyrator-resonantiekring.
JPS5233460A (en) * 1975-09-10 1977-03-14 Sony Corp Fm demodulator
GB2139681B (en) 1983-03-31 1986-06-11 Hall And Company Limited G Roller blinds
US5372475A (en) * 1990-08-10 1994-12-13 Nippondenso Co., Ltd. Fuel pump
JP2707476B2 (ja) * 1991-12-27 1998-01-28 東光株式会社 Ｆｍ検波回路
US5371475A (en) * 1993-06-03 1994-12-06 Northern Telecom Limited Low noise oscillators and tracking filters
JPH07245546A (ja) * 1994-03-03 1995-09-19 Nippon Motorola Ltd アクティブローパスフィルタ
JP2825076B2 (ja) * 1995-12-08 1998-11-18 日本電気株式会社 ジャイレータ回路を用いた復調回路
JP3003600B2 (ja) * 1996-11-20 2000-01-31 日本電気株式会社 Ｆｍ復調回路

Also Published As

Publication number Publication date
ATE212766T1 (de) 2002-02-15
GB2335810B (en) 2001-12-12
DE69900844D1 (de) 2002-03-14
GB2335810A (en) 1999-09-29
ES2168008T3 (es) 2002-05-16
WO1999049570A1 (en) 1999-09-30
EE200000556A (et) 2002-04-15
KR20010034638A (ko) 2001-04-25
GB9806206D0 (en) 1998-05-20
EP1064720B1 (en) 2002-01-30
BR9909046A (pt) 2000-12-05
AU3146599A (en) 1999-10-18
JP2002508614A (ja) 2002-03-19
KR100671093B1 (ko) 2007-01-17
US6335659B1 (en) 2002-01-01
EP1064720A1 (en) 2001-01-03
JP4260367B2 (ja) 2009-04-30
AU752635B2 (en) 2002-09-26
CN1294779A (zh) 2001-05-09

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20150319