FR2249506A1 - Transmission system for binary signals - pulses of opposite polarities are transmitted at each pos and neg. change - Google Patents

Transmission system for binary signals - pulses of opposite polarities are transmitted at each pos and neg. change

Info

Publication number
FR2249506A1
FR2249506A1 FR7337876A FR7337876A FR2249506A1 FR 2249506 A1 FR2249506 A1 FR 2249506A1 FR 7337876 A FR7337876 A FR 7337876A FR 7337876 A FR7337876 A FR 7337876A FR 2249506 A1 FR2249506 A1 FR 2249506A1
Authority
FR
France
Prior art keywords
transmitted
flip
pulses
clock pulses
neg
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
FR7337876A
Other languages
French (fr)
Other versions
FR2249506B3 (en
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.)
Constr Telephoniques
Original Assignee
Constr Telephoniques
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 Constr Telephoniques filed Critical Constr Telephoniques
Priority to FR7337876A priority Critical patent/FR2249506A1/en
Priority to DE19742448885 priority patent/DE2448885A1/en
Publication of FR2249506A1 publication Critical patent/FR2249506A1/en
Application granted granted Critical
Publication of FR2249506B3 publication Critical patent/FR2249506B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0266—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
    • H04L25/0268—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling with modulation and subsequent demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Dc Digital Transmission (AREA)

Abstract

The sender has a differentiating element to which the signals to be transmitted are applied. A bistable switching means at the receiver is tripped by the transmitted signals into its one or the other state. The differentiating circuit consists of a bistable flip-flop receiving the signal to be transmitted with clock pulses, and delivering a delayed signal, and of a transformer whose primary winding is inserted between the signal source and the flip-flop output. Alternatively it consists of two flip-flops, of which the first receives the signal and first clock pulses, and the second the output of the first and second clock pulses, and of a transformer whose primary winding is connected to the outputs of the two flip-flops. The second clock pulses are derived by an inverter from the first.
FR7337876A 1973-10-24 1973-10-24 Transmission system for binary signals - pulses of opposite polarities are transmitted at each pos and neg. change Granted FR2249506A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7337876A FR2249506A1 (en) 1973-10-24 1973-10-24 Transmission system for binary signals - pulses of opposite polarities are transmitted at each pos and neg. change
DE19742448885 DE2448885A1 (en) 1973-10-24 1974-10-14 SYSTEM FOR TRANSMISSION OF BINARY SIGNALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7337876A FR2249506A1 (en) 1973-10-24 1973-10-24 Transmission system for binary signals - pulses of opposite polarities are transmitted at each pos and neg. change

Publications (2)

Publication Number Publication Date
FR2249506A1 true FR2249506A1 (en) 1975-05-23
FR2249506B3 FR2249506B3 (en) 1976-09-17

Family

ID=9126849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337876A Granted FR2249506A1 (en) 1973-10-24 1973-10-24 Transmission system for binary signals - pulses of opposite polarities are transmitted at each pos and neg. change

Country Status (2)

Country Link
DE (1) DE2448885A1 (en)
FR (1) FR2249506A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027152A (en) * 1975-11-28 1977-05-31 Hewlett-Packard Company Apparatus and method for transmitting binary-coded information
US4114141A (en) * 1977-01-14 1978-09-12 Datrix Corporation Digital communication system for transmitting digital information between a central station and a number of remote stations
DE3524871A1 (en) * 1985-07-12 1987-01-22 Licentia Gmbh Method for optical transmission of binary signals and arrangement to carry out the method

Also Published As

Publication number Publication date
FR2249506B3 (en) 1976-09-17
DE2448885A1 (en) 1975-04-30

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