HK1008406A1 - On channel agile fm demodulator - Google Patents

On channel agile fm demodulator

Info

Publication number
HK1008406A1
HK1008406A1 HK98106361A HK98106361A HK1008406A1 HK 1008406 A1 HK1008406 A1 HK 1008406A1 HK 98106361 A HK98106361 A HK 98106361A HK 98106361 A HK98106361 A HK 98106361A HK 1008406 A1 HK1008406 A1 HK 1008406A1
Authority
HK
Hong Kong
Prior art keywords
frequency
output
oscillator
demodulator
produce
Prior art date
Application number
HK98106361A
Other languages
English (en)
Inventor
Daniel Marz
Original Assignee
Gen Instrument Corp
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 Gen Instrument Corp filed Critical Gen Instrument Corp
Publication of HK1008406A1 publication Critical patent/HK1008406A1/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
    • H03D3/24—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Receiver Circuits (AREA)
  • Noise Elimination (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
HK98106361A 1990-05-11 1998-06-24 On channel agile fm demodulator HK1008406A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/523,057 US5036291A (en) 1990-05-11 1990-05-11 On channel agile FM demodulator

Publications (1)

Publication Number Publication Date
HK1008406A1 true HK1008406A1 (en) 1999-05-07

Family

ID=24083494

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98106361A HK1008406A1 (en) 1990-05-11 1998-06-24 On channel agile fm demodulator

Country Status (13)

Country Link
US (1) US5036291A (xx)
EP (1) EP0456099B1 (xx)
JP (1) JPH0720017B2 (xx)
AT (1) ATE139874T1 (xx)
CA (1) CA2041678C (xx)
DE (1) DE69120468T2 (xx)
DK (1) DK0456099T3 (xx)
ES (1) ES2090169T3 (xx)
FI (1) FI102646B1 (xx)
GR (1) GR3021000T3 (xx)
HK (1) HK1008406A1 (xx)
IE (1) IE74864B1 (xx)
NO (1) NO178050C (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9320067D0 (en) * 1993-09-29 1993-11-17 Sgs Thomson Microelectronics Demodulation of fm audio carrier
US5963098A (en) * 1997-08-22 1999-10-05 Technology Service Corporation FM canceler loop to reduce shock and vibration effects in crystal oscillators
CA2289321A1 (en) * 1998-12-22 2000-06-22 Nortel Networks Corporation Apparatus and method for versatile digital communication
TWI226150B (en) * 2004-03-17 2005-01-01 Mediatek Inc Phase-locked loop with VCO tuning sensitivity compensation
NL1031209C2 (nl) * 2006-02-22 2007-08-24 Enraf Bv Werkwijze en inrichting voor het nauwkeurig vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
NL1034327C2 (nl) * 2007-09-04 2009-03-05 Enraf Bv Werkwijze en inrichting voor het binnen een bepaald meetbereik vaststellen van het niveau L van een vloeistof met behulp van naar het vloeistofniveau uitgestraalde radarsignalen en door het vloeistofniveau gereflecteerde radarsignalen.
US8659472B2 (en) * 2008-09-18 2014-02-25 Enraf B.V. Method and apparatus for highly accurate higher frequency signal generation and related level gauge
US8271212B2 (en) * 2008-09-18 2012-09-18 Enraf B.V. Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus
US8224594B2 (en) * 2008-09-18 2012-07-17 Enraf B.V. Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications
CN101753103A (zh) * 2008-12-09 2010-06-23 博通集成电路（上海）有限公司 解调信号的装置
TWI404340B (zh) * 2009-11-23 2013-08-01 Mstar Semiconductor Inc 偏移式鎖相迴路發送器與其相關方法
US9046406B2 (en) 2012-04-11 2015-06-02 Honeywell International Inc. Advanced antenna protection for radars in level gauging and other applications
DE102017130390A1 (de) * 2017-12-18 2019-06-19 Infineon Technologies Ag Testen von Eigenschaften eines spannungsgesteuerten Oszillators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530383A (en) * 1966-11-18 1970-09-22 Itt Ultra-sensitive receiver
SE375868B (xx) * 1973-11-07 1975-04-28 Facit Ab
US4077016A (en) * 1977-02-22 1978-02-28 Ncr Corporation Apparatus and method for inhibiting false locking of a phase-locked loop
FR2437733A1 (fr) * 1978-08-30 1980-04-25 Cit Alcatel Procede de regeneration de l'onde porteuse de modulation d'un signal module comportant des raies symetriques par rapport a cette porteuse et dispositif de mise en oeuvre
FR2561468B1 (fr) * 1984-03-13 1989-10-20 Thomson Csf Filtre actif hyperfrequence
US4633316A (en) * 1984-11-14 1986-12-30 Zenith Electronics Corporation Stable low cost 4.5 MHz remodulator

Also Published As

Publication number Publication date
CA2041678C (en) 1995-11-14
IE74864B1 (en) 1997-08-13
ATE139874T1 (de) 1996-07-15
US5036291A (en) 1991-07-30
EP0456099A2 (en) 1991-11-13
ES2090169T3 (es) 1996-10-16
JPH04252503A (ja) 1992-09-08
NO178050C (no) 1996-01-10
DE69120468D1 (de) 1996-08-01
GR3021000T3 (en) 1996-12-31
DK0456099T3 (da) 1996-11-04
FI102646B (fi) 1999-01-15
EP0456099A3 (en) 1991-12-18
DE69120468T2 (de) 1997-02-06
JPH0720017B2 (ja) 1995-03-06
EP0456099B1 (en) 1996-06-26
IE911409A1 (en) 1991-11-20
FI102646B1 (fi) 1999-01-15
FI912246A (fi) 1991-11-12
NO178050B (no) 1995-10-02
CA2041678A1 (en) 1991-11-12
NO911809L (no) 1991-11-12
FI912246A0 (fi) 1991-05-09
NO911809D0 (no) 1991-05-10

Similar Documents

Publication Publication Date Title
GR3021000T3 (en) On channel agile FM demodulator
EP0306249A3 (en) Frequency synthesizer
JPS53130911A (en) Pll synthesizer
JPS55166326A (en) Channel switching circuit
FR2330198A1 (fr) Dispositif a oscillateurs a frequence variable
JPS6455911A (en) Frequency synthesizer
JPS5676640A (en) Receiver of frequency synthesizer system
FR2263635A1 (en) High stability frequency converter - uses three mixing circuits and a quartz controlled pilot oscillator
JPS5769927A (en) Pll synthesizer receiver
JPS5776930A (en) Frequency shift signal generating system using pll
JPS56114443A (en) High frequency variable phase signal generation equipment
JPS54121610A (en) Pll circuit of radio receiver
JPS5527786A (en) Video modulator
JPS5769926A (en) Pll synthesizer receiver
JPS6460021A (en) Phase locked oscillation circuit
JPS5686559A (en) Psk modulation system
JPS57185707A (en) Frequency conversion circuit
JPS57124921A (en) Automatic frequency controlling circuit
JPS55118234A (en) Fm receiver
JPS5553927A (en) Frequency synthesizer
JPS5344156A (en) Pll oscillation equipment
JPS5324220A (en) Pll synthesizer
JPS6424631A (en) Phase locked loop oscillator
JPS54150954A (en) Pll synthesizer
JPS57152238A (en) Synchronous detection type receiving circuit

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: 20050501