BR8205727A - Transmissor para transmitir um sinal modulado em freguencia de deslocamento fsk - Google Patents

Transmissor para transmitir um sinal modulado em freguencia de deslocamento fsk

Info

Publication number
BR8205727A
BR8205727A BR8205727A BR8205727A BR8205727A BR 8205727 A BR8205727 A BR 8205727A BR 8205727 A BR8205727 A BR 8205727A BR 8205727 A BR8205727 A BR 8205727A BR 8205727 A BR8205727 A BR 8205727A
Authority
BR
Brazil
Prior art keywords
freguence
fsk
transmitter
displacement
transmitting
Prior art date
Application number
BR8205727A
Other languages
English (en)
Inventor
Nicolaas Van Tol
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of BR8205727A publication Critical patent/BR8205727A/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
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2014—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes in a piecewise linear manner during each symbol period, e.g. minimum shift keying, fast frequency shift keying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
  • Near-Field Transmission Systems (AREA)
BR8205727A 1981-10-02 1982-09-30 Transmissor para transmitir um sinal modulado em freguencia de deslocamento fsk BR8205727A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8104487 1981-10-02

Publications (1)

Publication Number Publication Date
BR8205727A true BR8205727A (pt) 1983-09-06

Family

ID=19838150

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8205727A BR8205727A (pt) 1981-10-02 1982-09-30 Transmissor para transmitir um sinal modulado em freguencia de deslocamento fsk

Country Status (6)

Country Link
US (1) US4555792A (pt)
EP (1) EP0076545B1 (pt)
JP (1) JPS5890858A (pt)
BR (1) BR8205727A (pt)
CA (1) CA1211793A (pt)
DE (1) DE3260840D1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689803A (en) * 1985-06-10 1987-08-25 Megapulse Inc. Antenna tuning system and method
AU598811B2 (en) * 1987-05-01 1990-07-05 Megapulse Incorporated Dynamic antenna tuning system and method
US5987058A (en) * 1988-11-02 1999-11-16 Axonn Corporation Wireless alarm system
US5189381A (en) * 1991-10-31 1993-02-23 Advanced Micro Devices, Inc. Apparatus for generating a sinusoidal output signal
GB9204200D0 (en) * 1992-02-27 1992-04-08 Goble Nigel M An inductive loop power transmission system
US5893027A (en) * 1996-11-05 1999-04-06 Motorola, Inc. Fully integrated two-way radio transmitter utilizing current mode transmit buffer and method of using same
DE10142807B4 (de) * 2001-08-31 2005-10-13 Leuze Electronic Gmbh & Co Kg Optoelektronische Vorrichtung
US6565001B1 (en) * 2001-11-08 2003-05-20 Em Microelectronics-Us, Inc Receiver circuit and method for a contactless identification system
US7110729B1 (en) * 2003-01-22 2006-09-19 National Semiconductor Corporation Apparatus and method for generating a temperature insensitive reference current

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095539A (en) * 1959-12-18 1963-06-25 Sylvania Electric Prod Digitally positioned wave filter
DE1290204B (de) * 1966-03-23 1969-03-06 Rohde & Schwarz Verfahren und Anordnung zur Nachrichtenuebertragung durch Umschalten der Ausgangsfrequenz eines Hochfrequenzgenerators
US3474451A (en) * 1967-04-10 1969-10-21 William E Abel Loop antenna circuit coupling multiple transmitters
US3648195A (en) * 1970-03-11 1972-03-07 Digitronics Corp Modulator using a harmonic filter
US3638142A (en) * 1970-07-20 1972-01-25 Ericsson Telefon Ab L M Frequency shift modulator with amplitude compensation
US3812929A (en) * 1971-07-26 1974-05-28 Citation Mfg Co Inc Self-propelled golf cart
US3939422A (en) * 1974-02-12 1976-02-17 Westinghouse Electric Corporation Dynamic antenna tuner
US3934202A (en) * 1974-03-25 1976-01-20 Telesonic Systems, Inc. Tour guide system including means for noise and crosstalk suppression
US4083008A (en) * 1975-04-10 1978-04-04 Blaupunkt-Werke Gmbh Method and circuit for generation of digitally frequency-shiftable electric signals
US4087755A (en) * 1975-10-01 1978-05-02 International Telephone & Telegraph Corporation Solid state pulse generator for an air navigational system
GB1590322A (en) * 1977-05-20 1981-05-28 Racal Res Ltd Data transmission
US4170764A (en) * 1978-03-06 1979-10-09 Bell Telephone Laboratories, Incorporated Amplitude and frequency modulation system
GB2066628B (en) * 1979-12-21 1984-04-04 Philips Electronic Associated Circuit arrangement for transmitting binary data elements as two tone frequences

Also Published As

Publication number Publication date
CA1211793A (en) 1986-09-23
EP0076545B1 (en) 1984-09-26
JPS5890858A (ja) 1983-05-30
DE3260840D1 (en) 1984-10-31
US4555792A (en) 1985-11-26
EP0076545A1 (en) 1983-04-13
JPH027543B2 (pt) 1990-02-19

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Legal Events

Date Code Title Description
TC Change of name
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 30/09/97