JPS55102958A - Self-synchronous data transmitter - Google Patents

Self-synchronous data transmitter

Info

Publication number
JPS55102958A
JPS55102958A JP871679A JP871679A JPS55102958A JP S55102958 A JPS55102958 A JP S55102958A JP 871679 A JP871679 A JP 871679A JP 871679 A JP871679 A JP 871679A JP S55102958 A JPS55102958 A JP S55102958A
Authority
JP
Japan
Prior art keywords
gates
signal
positive
signals
outputs
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.)
Pending
Application number
JP871679A
Other languages
Japanese (ja)
Inventor
Yoshio Sashita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP871679A priority Critical patent/JPS55102958A/en
Publication of JPS55102958A publication Critical patent/JPS55102958A/en
Pending 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
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/22—Repeaters for converting two wires to four wires; Repeaters for converting single current to double current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To simplify self-synchronization by separately receiving the positive signal and negative signal of a bipolar pulse phase modulated signal, by applying those separated positive and negative signals to a logic circuit, and then by extracting a data signal and synchronizing signal from both positive and negative signals. CONSTITUTION:A bipolar pulse phase modulated signal received by pulse transformer 31 is separated into two, a positive signal and negative signal, which are amplified by amplifiers 21 and 22 to obtain logic signals by converting. Those converted logic signals are applied to NAND gates 1 and 2, and 11 and 12 constituting a logic circuit, and while the output of NAND gates 1 and 2 are applied to delay circuit 14 via NAND gates 3 and 4, outputs of circuit 14 and gates 3 and 4 are applied to NAND gates 7 and 8, thereby outputting data signals DT of the positive and negative signals to the outputs of NAND gates 9 and 10 receiving the outputs of gates 7 and 8. Further, the outputs of gates 11 and 12 receiving the outputs of gates 3 and 4, and amplifiers 21 and 22 are applied to NAND gate 13, so that synchronizing signal CP of the positive and negative signals will appear at the output of gate 13.
JP871679A 1979-01-30 1979-01-30 Self-synchronous data transmitter Pending JPS55102958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP871679A JPS55102958A (en) 1979-01-30 1979-01-30 Self-synchronous data transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP871679A JPS55102958A (en) 1979-01-30 1979-01-30 Self-synchronous data transmitter

Publications (1)

Publication Number Publication Date
JPS55102958A true JPS55102958A (en) 1980-08-06

Family

ID=11700651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP871679A Pending JPS55102958A (en) 1979-01-30 1979-01-30 Self-synchronous data transmitter

Country Status (1)

Country Link
JP (1) JPS55102958A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57210748A (en) * 1981-06-19 1982-12-24 Hitachi Ltd Data transmission system
JPS58143658A (en) * 1982-02-19 1983-08-26 Hitachi Cable Ltd Data transmitting system
JPS59112745A (en) * 1982-12-17 1984-06-29 Fujitsu Ltd Asynchronous binary signal transmission system
US6778783B2 (en) 1997-01-22 2004-08-17 Advantest Corporation Optical pulse transmission system, optical pulse transmitting method and optical pulse detecting method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57210748A (en) * 1981-06-19 1982-12-24 Hitachi Ltd Data transmission system
JPS58143658A (en) * 1982-02-19 1983-08-26 Hitachi Cable Ltd Data transmitting system
JPS59112745A (en) * 1982-12-17 1984-06-29 Fujitsu Ltd Asynchronous binary signal transmission system
US6778783B2 (en) 1997-01-22 2004-08-17 Advantest Corporation Optical pulse transmission system, optical pulse transmitting method and optical pulse detecting method
US6819876B2 (en) 1997-01-22 2004-11-16 Advantest Corporation Optical pulse transmission system, optical pulse transmitting method and optical pulse detection method

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