BR9203324A - Transmissor receptor fsk digital e m'todo de operacao do mesmo - Google Patents

Transmissor receptor fsk digital e m'todo de operacao do mesmo

Info

Publication number
BR9203324A
BR9203324A BR929203324A BR9203324A BR9203324A BR 9203324 A BR9203324 A BR 9203324A BR 929203324 A BR929203324 A BR 929203324A BR 9203324 A BR9203324 A BR 9203324A BR 9203324 A BR9203324 A BR 9203324A
Authority
BR
Brazil
Prior art keywords
same
operation method
receiver transmitter
fsk receiver
digital fsk
Prior art date
Application number
BR929203324A
Other languages
English (en)
Inventor
William E Baker
Original Assignee
Babcock & Wilcox Co
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 Babcock & Wilcox Co filed Critical Babcock & Wilcox Co
Publication of BR9203324A publication Critical patent/BR9203324A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/156—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width
    • H04L27/1563—Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width using transition or level detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BR929203324A 1991-08-30 1992-08-26 Transmissor receptor fsk digital e m'todo de operacao do mesmo BR9203324A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/752,758 US5311556A (en) 1991-08-30 1991-08-30 Digital FSK transmitter receiver and method of operating same

Publications (1)

Publication Number Publication Date
BR9203324A true BR9203324A (pt) 1993-04-06

Family

ID=25027711

Family Applications (1)

Application Number Title Priority Date Filing Date
BR929203324A BR9203324A (pt) 1991-08-30 1992-08-26 Transmissor receptor fsk digital e m'todo de operacao do mesmo

Country Status (7)

Country Link
US (2) US5311556A (pt)
EP (2) EP1051004A3 (pt)
JP (1) JPH05284181A (pt)
AU (2) AU653053B2 (pt)
BR (1) BR9203324A (pt)
CA (1) CA2077227C (pt)
MX (1) MX9204989A (pt)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2116042C (en) * 1994-02-21 1999-03-23 Alexander F. Tulai Digital fsk receiver using double zero-crossing
US5513219A (en) * 1994-08-26 1996-04-30 Compaq Computer Corporation Apparatus and method for transmitting information with a subminimally modulated transmission signal
FR2738423B1 (fr) * 1995-08-30 1997-09-26 Snecma Demodulateur de frequence numerique
US5712878A (en) * 1996-08-19 1998-01-27 Elsag International N.V. Digital FSK modulator
KR100186753B1 (ko) * 1996-08-24 1999-05-15 삼성전자주식회사 직접 변복조 방식이 적용된 디지탈 무선 송수신 시스템
US6144253A (en) * 1997-10-27 2000-11-07 Elsag International N.V. Digital FSK demodulator
US6272184B1 (en) * 1997-12-17 2001-08-07 Conexant Systems, Inc. Non-coherent frequency shift keying detection scheme
FR2784256B1 (fr) * 1998-10-02 2002-12-06 Faure Res Demodulateur numerique, et son procede de demodulation d'un signal module par deplacement de frequence
FR2811170A1 (fr) * 2000-07-03 2002-01-04 Valeo Electronique Pilote d'antenne emettrice d'un signal bi-frequence a commutation de frequence synchronisee
FR2819970B1 (fr) * 2001-01-23 2003-02-28 Sagem Procede de mise en service et d'utilisation d'une liaison bidirectionnelle de donnees et modem pour la mise en oeuvre du procede
US6990157B2 (en) * 2001-02-24 2006-01-24 Texas Instruments Incorporated All-digital FSK demodulation with selectable data rate and adjustable resolution
US6448831B1 (en) 2001-06-12 2002-09-10 Rf Micro Devices, Inc. True single-phase flip-flop
US6779010B2 (en) 2001-06-12 2004-08-17 Rf Micro Devices, Inc. Accumulator with programmable full-scale range
US7003049B2 (en) * 2001-06-12 2006-02-21 Rf Micro Devices, Inc. Fractional-N digital modulation with analog IQ interface
US6693468B2 (en) 2001-06-12 2004-02-17 Rf Micro Devices, Inc. Fractional-N synthesizer with improved noise performance
US6385276B1 (en) 2001-06-12 2002-05-07 Rf Micro Devices, Inc. Dual-modulus prescaler
US6891905B1 (en) * 2001-08-23 2005-05-10 National Semiconductor Corporation Apparatus and method for FSK demodulation with integrated time and frequency tracking
DE10214581A1 (de) * 2002-04-02 2003-10-23 Infineon Technologies Ag Demodulation eines digital frequenzmodulierten analogen Empfangssignals durch Auswertung der zeitlichen Abstände zwischen den Nulldurchgängen
DE10342193B3 (de) * 2003-09-12 2005-04-07 Infineon Technologies Ag Verfahren zur Rekonstruktion von Nulldurchgangsinformation von verrauschten winkelmodulierten Signalen nach einer Limiter-Diskriminator-Signalverarbeitung
US7292637B2 (en) * 2003-12-17 2007-11-06 Rambus Inc. Noise-tolerant signaling schemes supporting simplified timing and data recovery
EP2225862B1 (en) * 2007-12-28 2018-11-07 Spectrum Controls, Inc. Micro-controller with fsk modem
US8373357B2 (en) * 2009-01-26 2013-02-12 Microchip Technology Incorporated Modulator module in an integrated circuit device
IT201600111351A1 (it) * 2016-11-04 2018-05-04 St Microelectronics Des & Appl Procedimento per rivelare segnali con modulazione fsk, circuito, dispositivo e prodotto informatico corrispondenti

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597599A (en) * 1969-06-16 1971-08-03 Collins Radio Co Digitalized tone generator
US3937932A (en) * 1974-04-15 1976-02-10 Barber-Colman Company Digital frequency generator
GB1506579A (en) * 1974-10-17 1978-04-05 Ching Koon Pun Leak-resistant dry cells
IT1037127B (it) * 1975-03-18 1979-11-10 Sits Soc It Telecom Siemens Demodulatore di onde modulate in frequenza
JPS5310253A (en) * 1976-07-16 1978-01-30 Sharp Corp Fs signal demodulator
US4349887A (en) * 1980-08-22 1982-09-14 Rca Corporation Precise digitally programmed frequency source
US4485347A (en) * 1980-09-04 1984-11-27 Mitsubishi Denki Kabushiki Kaisha Digital FSK demodulator
JPS57184356A (en) * 1981-05-08 1982-11-13 Seiko Epson Corp Fsk demodulating circuit
US4627078A (en) * 1983-08-25 1986-12-02 The Microperipheral Corporation Data communication system
US4757519A (en) * 1987-10-02 1988-07-12 Hewlett-Packard Digital premodulation filter
US4785255A (en) * 1987-11-23 1988-11-15 Allen-Bradley Company, Inc. Digital FSK signal demodulator
US5105444A (en) * 1989-09-13 1992-04-14 Atlantic Richfield Company System for high speed data tranmission
DE3939259A1 (de) * 1989-11-28 1991-05-29 Rohde & Schwarz Frequenzmodulierbarer frequenzgenerator

Also Published As

Publication number Publication date
AU7025794A (en) 1994-10-13
US5365548A (en) 1994-11-15
EP1051004A3 (en) 2001-01-10
US5311556A (en) 1994-05-10
AU2139992A (en) 1993-03-04
MX9204989A (es) 1993-04-01
CA2077227A1 (en) 1993-03-01
AU653053B2 (en) 1994-09-15
JPH05284181A (ja) 1993-10-29
AU669815B2 (en) 1996-06-20
EP0529986A3 (en) 1993-09-29
EP1051004A2 (en) 2000-11-08
CA2077227C (en) 1998-09-15
EP0529986A2 (en) 1993-03-03

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
HO Change of classification

Free format text: INT. CL. 6 H04L 27/14

FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law