FR2260234A1 - Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters - Google Patents

Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters

Info

Publication number
FR2260234A1
FR2260234A1 FR7403944A FR7403944A FR2260234A1 FR 2260234 A1 FR2260234 A1 FR 2260234A1 FR 7403944 A FR7403944 A FR 7403944A FR 7403944 A FR7403944 A FR 7403944A FR 2260234 A1 FR2260234 A1 FR 2260234A1
Authority
FR
France
Prior art keywords
shift register
simplify
pass
design
data transmission
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.)
Granted
Application number
FR7403944A
Other languages
English (en)
French (fr)
Other versions
FR2260234B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR7403944A priority Critical patent/FR2260234A1/fr
Publication of FR2260234A1 publication Critical patent/FR2260234A1/fr
Application granted granted Critical
Publication of FR2260234B1 publication Critical patent/FR2260234B1/fr
Granted 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
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR7403944A 1974-02-06 1974-02-06 Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters Granted FR2260234A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7403944A FR2260234A1 (en) 1974-02-06 1974-02-06 Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7403944A FR2260234A1 (en) 1974-02-06 1974-02-06 Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters

Publications (2)

Publication Number Publication Date
FR2260234A1 true FR2260234A1 (en) 1975-08-29
FR2260234B1 FR2260234B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-27

Family

ID=9134554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403944A Granted FR2260234A1 (en) 1974-02-06 1974-02-06 Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters

Country Status (1)

Country Link
FR (1) FR2260234A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR2260234B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-27

Similar Documents

Publication Publication Date Title
GB1011873A (en) Improvements in and relating to phase-modulation of a carrier wave
ES440563A1 (es) Filtro de fase perfeccionado.
GB1039148A (en) Method and apparatus for the synchronous frequency modulation of binary data
GB1154473A (en) Frequency Shift Keyed Discriminating Circuits
US3818135A (en) Circuitry for transmission of phase difference modulated data signals
ES425145A1 (es) Un metodo para convertir una senal de datos en codigo bina-rio en otra senal en codigo de dos impulsos con la misma po-laridad y otros dos con polaridad opuesta por cada bit.
FR2260234A1 (en) Data transmission frequency modulator - uses shift register to simplify the design of pass-band filters
GB1208774A (en) Improvements in or relating to delta-modulation telecommunications apparatus
GB1377583A (en) Communication systems
GB679901A (en) Improvements in or relating to keyed frequency modulation carrier wave communicationsystems
GB1419562A (en) Method of generating a phase-modulated rectangular wave
US3801912A (en) Frequency modulation communication system and digital carrier generator and demodulator for use therein
GB959374A (en) Method of constructing a filter by displacement and reversal of the scale of frequencies
GB1014358A (en) Pulse converting system
GB1482038A (en) Counters
GB1296199A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB1079912A (en) Distortion reduction circuit
FR2408256A1 (fr) Procede de transmission en modulation de frequence de donnees codees en binaire et dispositifs de mise en oeuvre
SU467474A2 (ru) Автоматический след щий делитель периодов следовани импульсных сигналов
SU942246A1 (ru) Дискретный фильтр
RU1798906C (ru) Широтно-импульсный модул тор
GB1385788A (en) Digital to analogue converter
SU364113A1 (ru) Устройство контроля отношения сигнал/шум
FR2390854A1 (fr) Procede de transmission de donnees en code binaire, par impulsions lumineuses ou electriques
SU497737A1 (ru) Кодово-импульсный модул тор телефонного канала радиорелейной станции с временным уплотнением

Legal Events

Date Code Title Description
ST Notification of lapse