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FR2572603B1 - DIFFERENTIAL DEMODULATOR OF ELECTRIC SIGNALS WITH MULTIPLE AMPLITUDE AND PHASE STATES FOR DATA TRANSMISSION EQUIPMENT - Google Patents

DIFFERENTIAL DEMODULATOR OF ELECTRIC SIGNALS WITH MULTIPLE AMPLITUDE AND PHASE STATES FOR DATA TRANSMISSION EQUIPMENT

Info

Publication number
FR2572603B1
FR2572603B1 FR8416598A FR8416598A FR2572603B1 FR 2572603 B1 FR2572603 B1 FR 2572603B1 FR 8416598 A FR8416598 A FR 8416598A FR 8416598 A FR8416598 A FR 8416598A FR 2572603 B1 FR2572603 B1 FR 2572603B1
Authority
FR
France
Prior art keywords
data transmission
electric signals
transmission equipment
phase states
multiple amplitude
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
FR8416598A
Other languages
French (fr)
Other versions
FR2572603A1 (en
Inventor
Jean-Pierre Houdard
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT SA
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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Priority to FR8416598A priority Critical patent/FR2572603B1/en
Publication of FR2572603A1 publication Critical patent/FR2572603A1/en
Application granted granted Critical
Publication of FR2572603B1 publication Critical patent/FR2572603B1/en
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
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR8416598A 1984-10-30 1984-10-30 DIFFERENTIAL DEMODULATOR OF ELECTRIC SIGNALS WITH MULTIPLE AMPLITUDE AND PHASE STATES FOR DATA TRANSMISSION EQUIPMENT Expired FR2572603B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8416598A FR2572603B1 (en) 1984-10-30 1984-10-30 DIFFERENTIAL DEMODULATOR OF ELECTRIC SIGNALS WITH MULTIPLE AMPLITUDE AND PHASE STATES FOR DATA TRANSMISSION EQUIPMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8416598A FR2572603B1 (en) 1984-10-30 1984-10-30 DIFFERENTIAL DEMODULATOR OF ELECTRIC SIGNALS WITH MULTIPLE AMPLITUDE AND PHASE STATES FOR DATA TRANSMISSION EQUIPMENT

Publications (2)

Publication Number Publication Date
FR2572603A1 FR2572603A1 (en) 1986-05-02
FR2572603B1 true FR2572603B1 (en) 1989-11-17

Family

ID=9309148

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8416598A Expired FR2572603B1 (en) 1984-10-30 1984-10-30 DIFFERENTIAL DEMODULATOR OF ELECTRIC SIGNALS WITH MULTIPLE AMPLITUDE AND PHASE STATES FOR DATA TRANSMISSION EQUIPMENT

Country Status (1)

Country Link
FR (1) FR2572603B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615675B1 (en) * 1987-05-21 1989-06-30 Alcatel Espace METHOD FOR DEMODULATING DIGITALLY MODULATED SIGNALS AND DEVICE FOR CARRYING OUT SUCH A METHOD

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619503A (en) * 1969-11-18 1971-11-09 Int Communications Corp Phase and amplitude modulated modem
US3665304A (en) * 1970-12-28 1972-05-23 Bell Telephone Labor Inc Signal amplitude and phase homodyne
FR2454233B1 (en) * 1979-04-11 1986-01-24 Materiel Telephonique STOCHASTIC DEMODULATOR FOR PHASE MODULATED SIGNALS, OPERATING IN TIME SHARING ON MULTIPLE CHANNELS
FR2507847A1 (en) * 1981-06-11 1982-12-17 Thomson Csf Mat Tel SELF-ADAPTIVE DIGITAL EQUALIZER FOR DATA RECEIVER

Also Published As

Publication number Publication date
FR2572603A1 (en) 1986-05-02

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Legal Events

Date Code Title Description
ST Notification of lapse