FR2469062B1 - Modulateur par deplacement de phase a quatre etats - Google Patents

Modulateur par deplacement de phase a quatre etats

Info

Publication number
FR2469062B1
FR2469062B1 FR7927518A FR7927518A FR2469062B1 FR 2469062 B1 FR2469062 B1 FR 2469062B1 FR 7927518 A FR7927518 A FR 7927518A FR 7927518 A FR7927518 A FR 7927518A FR 2469062 B1 FR2469062 B1 FR 2469062B1
Authority
FR
France
Prior art keywords
state phase
phase motion
motion modulator
modulator
state
Prior art date
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
FR7927518A
Other languages
English (en)
Other versions
FR2469062A1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7927518A priority Critical patent/FR2469062B1/fr
Priority to US06/200,470 priority patent/US4377791A/en
Priority to DE19803040958 priority patent/DE3040958A1/de
Priority to GB8035135A priority patent/GB2066027B/en
Publication of FR2469062A1 publication Critical patent/FR2469062A1/fr
Application granted granted Critical
Publication of FR2469062B1 publication Critical patent/FR2469062B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/2057—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases with a separate carrier for each phase state

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR7927518A 1979-10-31 1979-10-31 Modulateur par deplacement de phase a quatre etats Expired FR2469062B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7927518A FR2469062B1 (fr) 1979-10-31 1979-10-31 Modulateur par deplacement de phase a quatre etats
US06/200,470 US4377791A (en) 1979-10-31 1980-10-24 Phase displacement modulator having four quadrant phases
DE19803040958 DE3040958A1 (de) 1979-10-31 1980-10-30 Phasenverschiebemodulator mit vier-phasen-zustaenden
GB8035135A GB2066027B (en) 1979-10-31 1980-10-31 Phase modulator reducing inter symbol interference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7927518A FR2469062B1 (fr) 1979-10-31 1979-10-31 Modulateur par deplacement de phase a quatre etats

Publications (2)

Publication Number Publication Date
FR2469062A1 FR2469062A1 (fr) 1981-05-08
FR2469062B1 true FR2469062B1 (fr) 1987-05-07

Family

ID=9231413

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927518A Expired FR2469062B1 (fr) 1979-10-31 1979-10-31 Modulateur par deplacement de phase a quatre etats

Country Status (4)

Country Link
US (1) US4377791A (fr)
DE (1) DE3040958A1 (fr)
FR (1) FR2469062B1 (fr)
GB (1) GB2066027B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246145A1 (de) * 1982-12-14 1984-06-14 Standard Elektrik Lorenz Ag, 7000 Stuttgart Fernsehuebertragungssystem mit integrierter uebertragung von zusatzinformationen, insbesondere tonsignalen
US4573166A (en) * 1983-06-24 1986-02-25 Wolfdata, Inc. Digital modem with plural microprocessors
FR2589298B1 (fr) * 1985-10-28 1987-11-20 Verdot Georges Modulateur par deplacement de phase maq 22n et, en particulier, modulateur mdp4
FR2622376B1 (fr) * 1987-10-21 1990-01-26 Verdot Georges Modulateur par deplacement de phase a quatre etats, notamment pour modulation d'amplitude a deux porteuses en quadrature a grand nombre d'etats

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659202A (en) * 1970-05-21 1972-04-25 Nippon Electric Co Data transmission system
US3816657A (en) * 1972-10-12 1974-06-11 Nasa Differential phase-shift-keyed communication system
FR2394921A1 (fr) * 1977-06-13 1979-01-12 Poitevin Jean Pierre Modulateur a quatre phases a sauts decales
FR2406909A1 (fr) * 1977-10-18 1979-05-18 Thomson Csf Modulateur de phase et systeme de transmission de signaux numeriques utilisant un tel modulateur
US4206423A (en) * 1978-10-03 1980-06-03 Rca Corporation Digitized phase modulating means

Also Published As

Publication number Publication date
GB2066027A (en) 1981-07-01
GB2066027B (en) 1983-10-26
US4377791A (en) 1983-03-22
DE3040958A1 (de) 1981-09-17
FR2469062A1 (fr) 1981-05-08
DE3040958C2 (fr) 1989-05-03

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse
ST Notification of lapse