FR2285761A1 - Data transmission by amplitude modulated single sideband signal - involves circuit which is used for carrier phase adjustment - Google Patents

Data transmission by amplitude modulated single sideband signal - involves circuit which is used for carrier phase adjustment

Info

Publication number
FR2285761A1
FR2285761A1 FR7528413A FR7528413A FR2285761A1 FR 2285761 A1 FR2285761 A1 FR 2285761A1 FR 7528413 A FR7528413 A FR 7528413A FR 7528413 A FR7528413 A FR 7528413A FR 2285761 A1 FR2285761 A1 FR 2285761A1
Authority
FR
France
Prior art keywords
carrier
signal
carrier phase
data transmission
phase adjustment
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.)
Withdrawn
Application number
FR7528413A
Other languages
French (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2285761A1 publication Critical patent/FR2285761A1/en
Withdrawn legal-status Critical Current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
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/066—Carrier recovery circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

It comprises a receiving end carrier generator, with a control input for an error signal for the carrier phase control; a phase shifter whose input is connected to the carrier generator output, which shifts the carrier phase by 90 deg.; two demodulators, to which the received single side band signal is applied and separately the carrier and the shifted by 90 deg. carrier.; they deliver demodulated signals applied to two low-pass filters, which in turn deliver demodulated signals with limited bandwidth a decision stage delivers, depending on the first limited in bandwidth demodulated signal, the recovered scanning values of the data signal, and of the Hilbert transformed signal.
FR7528413A 1974-09-17 1975-09-16 Data transmission by amplitude modulated single sideband signal - involves circuit which is used for carrier phase adjustment Withdrawn FR2285761A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742444429 DE2444429C2 (en) 1974-09-17 1974-09-17 CIRCUIT ARRANGEMENT FOR CARRIER PHASE CONTROL DURING THE TRANSMISSION OF A DATA SIGNAL

Publications (1)

Publication Number Publication Date
FR2285761A1 true FR2285761A1 (en) 1976-04-16

Family

ID=5926000

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7528413A Withdrawn FR2285761A1 (en) 1974-09-17 1975-09-16 Data transmission by amplitude modulated single sideband signal - involves circuit which is used for carrier phase adjustment

Country Status (3)

Country Link
DE (1) DE2444429C2 (en)
FR (1) FR2285761A1 (en)
NL (1) NL7510193A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466146B1 (en) * 1979-09-19 1987-06-12 Cit Alcatel CIRCUIT FOR CONTROLLING THE PHASE OF A LOCAL OSCILLATOR FOR RECEIVING DATA SIGNALS TRANSMITTED BY A MODULATION OF SINGLE BAND AMPLITUDE

Also Published As

Publication number Publication date
DE2444429C2 (en) 1976-09-23
NL7510193A (en) 1976-03-19
DE2444429B1 (en) 1976-02-12

Similar Documents

Publication Publication Date Title
US3054073A (en) Angular-velocity modulation transmitter
US4054841A (en) Differential demodulators using surface elastic wave devices
JPS5815341A (en) Transmission diversity system
GB1079928A (en) A data transmission system
US2378298A (en) Composite-modulation radio service system
US4928318A (en) Optical signal transmission system including pulsed FM modulator/demodulator
JPS5019202B1 (en)
US5652552A (en) Phase modulator
US3588702A (en) Transmitter for single sideband transmission bivalent of pulse
US4238783A (en) Telemetry system for transmitting analog data over a telephone line
KR840007335A (en) Secret signal transmission system
IE48641B1 (en) Clock rate recovery circuit
FR2285761A1 (en) Data transmission by amplitude modulated single sideband signal - involves circuit which is used for carrier phase adjustment
US4388726A (en) System for the ultra-high frequency transmission of numerical data
ES363108A2 (en) Transmission system for the transmission of information in a prescribed frequency band
US5598160A (en) Signal processing circuit with built-in dynamic range matching
US4461012A (en) Transmitter and receiver for transmitting digital signals
SE338350B (en)
EP0325459A3 (en) Digital modulator
US3355553A (en) Synchronizing system for multifrequency carrier transmission
GB1038361A (en) Non-synchronous phase shift communication system
US5049839A (en) Biphase modulaton circuit having continuous phase changes
GB1277131A (en) Transmission system comprising a transmitter and a receiver for the transmission of information in a prescribed frequency band and transmitters and receivers to be used in said system
JPS5917572B2 (en) wireless repeater
SU765984A1 (en) Amplitude-modulated signal demodulator

Legal Events

Date Code Title Description
ST Notification of lapse