FR2125554B1 - - Google Patents

Info

Publication number
FR2125554B1
FR2125554B1 FR7205354A FR7205354A FR2125554B1 FR 2125554 B1 FR2125554 B1 FR 2125554B1 FR 7205354 A FR7205354 A FR 7205354A FR 7205354 A FR7205354 A FR 7205354A FR 2125554 B1 FR2125554 B1 FR 2125554B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7205354A
Other versions
FR2125554A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Publication of FR2125554A1 publication Critical patent/FR2125554A1/fr
Application granted granted Critical
Publication of FR2125554B1 publication Critical patent/FR2125554B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/04—Trigonometric functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Electrophonic Musical Instruments (AREA)
FR7205354A 1971-02-19 1972-02-17 Expired FR2125554B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11699871A 1971-02-19 1971-02-19

Publications (2)

Publication Number Publication Date
FR2125554A1 FR2125554A1 (fr) 1972-09-29
FR2125554B1 true FR2125554B1 (fr) 1977-04-01

Family

ID=22370483

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7205354A Expired FR2125554B1 (fr) 1971-02-19 1972-02-17

Country Status (11)

Country Link
US (1) US3697892A (fr)
JP (1) JPS5117368B1 (fr)
BE (1) BE779389A (fr)
CA (1) CA942425A (fr)
DE (1) DE2207365C3 (fr)
ES (1) ES399905A1 (fr)
FR (1) FR2125554B1 (fr)
GB (1) GB1384777A (fr)
IT (1) IT949152B (fr)
NL (1) NL7201945A (fr)
SE (1) SE373473B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488434A (en) * 1974-11-21 1977-10-12 Ibm Fsk modulator
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
DE2659512B1 (de) * 1976-12-30 1978-05-24 Wandel & Goltermann Verfahren und Schaltungsanordnung zum Erzeugen eines Digitalsignals zum Pruefen einer PCM-Endstelle
US4259648A (en) * 1979-07-11 1981-03-31 Bell Telephone Laboratories, Incorporated One-bit frequency-shift-keyed modulator
FR2519491A1 (fr) * 1982-01-07 1983-07-08 Signaux Entr Electriques Procede de generation de signaux periodiques, notamment de signaux modules par sauts de frequence ou de phase et generateur mettant en oeuvre le procede
US4602226A (en) * 1985-03-21 1986-07-22 General Electric Company Apparatus for the gated modulation of a radio-frequency carrier signal
US5027372A (en) * 1987-03-04 1991-06-25 National Semiconductor Corp. Differential phase shift keying modulator
US8373357B2 (en) * 2009-01-26 2013-02-12 Microchip Technology Incorporated Modulator module in an integrated circuit device

Family Cites Families (6)

* 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
US3243703A (en) * 1962-05-24 1966-03-29 Gen Electric Interpolative scanner using scanned electron discharge devices having overlapping conducting intervals
US3292034A (en) * 1963-09-27 1966-12-13 Honeywell Inc Apparatus for synchronizing cathode ray deflection to a rotating antenna using digital techniques
DE1222974B (de) * 1965-02-04 1966-08-18 Siemens Ag Verfahren und Schaltungsanordnung zur UEbertragung binaerer Signale in hoeher codierter Form
US3393364A (en) * 1965-10-23 1968-07-16 Signatron Statistical delta modulation system
US3611209A (en) * 1969-12-11 1971-10-05 Bell Telephone Labor Inc Digital filter frequency shift modulator

Also Published As

Publication number Publication date
ES399905A1 (es) 1974-12-16
BE779389A (fr) 1972-05-30
IT949152B (it) 1973-06-11
GB1384777A (en) 1975-02-19
CA942425A (en) 1974-02-19
NL7201945A (fr) 1972-08-22
DE2207365A1 (de) 1972-08-24
DE2207365C3 (de) 1974-01-24
JPS5117368B1 (fr) 1976-06-02
FR2125554A1 (fr) 1972-09-29
US3697892A (en) 1972-10-10
SE373473B (fr) 1975-02-03
DE2207365B2 (de) 1973-06-28

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Legal Events

Date Code Title Description
ST Notification of lapse