JPS57104351A - Signal conversion circuit - Google Patents

Signal conversion circuit

Info

Publication number
JPS57104351A
JPS57104351A JP18018680A JP18018680A JPS57104351A JP S57104351 A JPS57104351 A JP S57104351A JP 18018680 A JP18018680 A JP 18018680A JP 18018680 A JP18018680 A JP 18018680A JP S57104351 A JPS57104351 A JP S57104351A
Authority
JP
Japan
Prior art keywords
output
inputted
gates
output signal
signal
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
JP18018680A
Other languages
Japanese (ja)
Other versions
JPS6159016B2 (en
Inventor
Shinji Kajiwara
Masami Mizuguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18018680A priority Critical patent/JPS57104351A/en
Publication of JPS57104351A publication Critical patent/JPS57104351A/en
Publication of JPS6159016B2 publication Critical patent/JPS6159016B2/ja
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
    • H04L25/20—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)
  • Electronic Switches (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To protect an output stage transistor of a unipolar/bipolar converter without causing the amplitude lowering, by preventing the output-stage transistor from continuously being turned on with simple circuit constitution. CONSTITUTION:A clock signal (a) and a data signal (b) are inputted to an NAND gate G1, an output signal (c) is inputted to a flip-flop FF and an NAND gate G2, and pulse signals appear on the output of gates G3, G5 alternately. The output signal (c) is inputted to a monostable multivibrator MMV, which is triggered when the output signal (c) changes from 1 to 0. and an output signal (j) is inputted to gates G4, G6, which are controlled based on a prescribed duration time T1 of the monostable multivibrator MMV. Thus, even if the output of the gate G3 or G5 is at consecutive ''1'' through the generation of a failure, the state is suppressed to the prescribed time T1 with the gates G4, G6, allowing to avoid defective output-stage transistors Q1, Q2.
JP18018680A 1980-12-19 1980-12-19 Signal conversion circuit Granted JPS57104351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18018680A JPS57104351A (en) 1980-12-19 1980-12-19 Signal conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18018680A JPS57104351A (en) 1980-12-19 1980-12-19 Signal conversion circuit

Publications (2)

Publication Number Publication Date
JPS57104351A true JPS57104351A (en) 1982-06-29
JPS6159016B2 JPS6159016B2 (en) 1986-12-15

Family

ID=16078883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18018680A Granted JPS57104351A (en) 1980-12-19 1980-12-19 Signal conversion circuit

Country Status (1)

Country Link
JP (1) JPS57104351A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609852A1 (en) * 1987-01-20 1988-07-22 Telecommunications Sa BINARY-BIPOLAR CONVERTER
JPH01136423A (en) * 1987-11-20 1989-05-29 Fujitsu Ltd Unipolar/bipolar conversion circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538608A (en) * 1976-07-13 1978-01-26 Ibigawa Electric Ind Co Ltd Manufacture of antiioxidizing carbon products

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538608A (en) * 1976-07-13 1978-01-26 Ibigawa Electric Ind Co Ltd Manufacture of antiioxidizing carbon products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609852A1 (en) * 1987-01-20 1988-07-22 Telecommunications Sa BINARY-BIPOLAR CONVERTER
JPH01136423A (en) * 1987-11-20 1989-05-29 Fujitsu Ltd Unipolar/bipolar conversion circuit

Also Published As

Publication number Publication date
JPS6159016B2 (en) 1986-12-15

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