BE760138A - Modulateur de frequence a filtre numerique - Google Patents

Modulateur de frequence a filtre numerique

Info

Publication number
BE760138A
BE760138A BE760138A BE760138A BE760138A BE 760138 A BE760138 A BE 760138A BE 760138 A BE760138 A BE 760138A BE 760138 A BE760138 A BE 760138A BE 760138 A BE760138 A BE 760138A
Authority
BE
Belgium
Prior art keywords
digital filter
frequency modulator
filter frequency
modulator
digital
Prior art date
Application number
BE760138A
Other languages
English (en)
Inventor
B R Saltzberg
Original Assignee
Western Electric 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 Western Electric Co filed Critical Western Electric Co
Publication of BE760138A publication Critical patent/BE760138A/fr

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Complex Calculations (AREA)
  • Transmitters (AREA)
BE760138A 1969-12-11 1970-12-10 Modulateur de frequence a filtre numerique BE760138A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88412869A 1969-12-11 1969-12-11

Publications (1)

Publication Number Publication Date
BE760138A true BE760138A (fr) 1971-05-17

Family

ID=25384015

Family Applications (1)

Application Number Title Priority Date Filing Date
BE760138A BE760138A (fr) 1969-12-11 1970-12-10 Modulateur de frequence a filtre numerique

Country Status (9)

Country Link
US (1) US3611209A (fr)
JP (1) JPS523541B1 (fr)
BE (1) BE760138A (fr)
DE (1) DE2060376A1 (fr)
ES (1) ES386682A1 (fr)
FR (1) FR2073578A5 (fr)
GB (1) GB1268327A (fr)
NL (1) NL7018049A (fr)
SE (1) SE367110B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697892A (en) * 1971-02-19 1972-10-10 Bell Telephone Labor Inc Digital frequency-shift modulator using a read-only-memory
US3958191A (en) * 1974-11-21 1976-05-18 International Business Machines Corporation Multi-line, multi-mode modulator using bandwidth reduction for digital fsk and dpsk modulation
ATE180911T1 (de) * 1991-07-11 1999-06-15 United Parcel Service Inc System und verfahren zur erfassung eines optischen zieles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817017A (en) * 1955-08-12 1957-12-17 Orville C Hall Frequency shift keyed oscillators
US3199028A (en) * 1962-08-06 1965-08-03 Collins Radio Co Dual feedback direct frequency modulation system
US3454718A (en) * 1966-10-03 1969-07-08 Xerox Corp Fsk transmitter with transmission of the same number of cycles of each carrier frequency
US3508136A (en) * 1966-12-12 1970-04-21 Ericsson Telefon Ab L M Apparatus for obtaining a carrier frequency shifting at a constant phase angle in frequency modulation

Also Published As

Publication number Publication date
SE367110B (fr) 1974-05-13
NL7018049A (fr) 1971-06-15
ES386682A1 (es) 1974-02-01
GB1268327A (en) 1972-03-29
US3611209A (en) 1971-10-05
FR2073578A5 (fr) 1971-10-01
JPS523541B1 (fr) 1977-01-28
DE2060376A1 (de) 1971-06-16

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