JPS57186860A - Variable synchronizing data transmitting device - Google Patents

Variable synchronizing data transmitting device

Info

Publication number
JPS57186860A
JPS57186860A JP56071466A JP7146681A JPS57186860A JP S57186860 A JPS57186860 A JP S57186860A JP 56071466 A JP56071466 A JP 56071466A JP 7146681 A JP7146681 A JP 7146681A JP S57186860 A JPS57186860 A JP S57186860A
Authority
JP
Japan
Prior art keywords
pulse
signal
circuit
data
synchronizing
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
JP56071466A
Other languages
Japanese (ja)
Inventor
Shigeaki Saito
Yoshiki Higo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56071466A priority Critical patent/JPS57186860A/en
Publication of JPS57186860A publication Critical patent/JPS57186860A/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
    • H04L25/38—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
    • H04L25/4902—Pulse width modulation; Pulse position modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To transmit and receive a data by an optional clock frequency, by arraying in series a clock pulse and a data pulse on the time base, and transmitting and receiving them. CONSTITUTION:A synchronizing pulse C is obtained by inputting a clock frequency A to a monostable multivibrator 1. On the other hand, a data pulse E is obtained by delaying 2 a data signal B and taking AND with the signal C. When this pulse E is delayed 4 and a data pulse F is inputted to an OR circuit 5 together with the signal C, a series synchronizing signal G in which the synchronizing pulse and the data pulse have been arrayed in series on the time base is obtained as an output of the circuit 5. On the other hand, in the receiving part, a signal I is obtained by shaping a receiving waveform H by a monostable multivibrator 7. This signal I is provided to a synchronizing pulse extracting means consisting of a delaying circuit 8, an AND circuit 9, a NOT circuit 10 and an AND circuit 11, by which a synchronizing pulse N is obtained. This pulse N is delayed 12 and is provided to a clock terminal C of a D type FF 14. On the other hand, to an FF 14, an output of a monostable multivibrator 13 is provided, and a reloaded data signal P is obtained.
JP56071466A 1981-05-14 1981-05-14 Variable synchronizing data transmitting device Pending JPS57186860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56071466A JPS57186860A (en) 1981-05-14 1981-05-14 Variable synchronizing data transmitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56071466A JPS57186860A (en) 1981-05-14 1981-05-14 Variable synchronizing data transmitting device

Publications (1)

Publication Number Publication Date
JPS57186860A true JPS57186860A (en) 1982-11-17

Family

ID=13461392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56071466A Pending JPS57186860A (en) 1981-05-14 1981-05-14 Variable synchronizing data transmitting device

Country Status (1)

Country Link
JP (1) JPS57186860A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877705A (en) * 1972-01-18 1973-10-19
JPS5335404A (en) * 1976-09-14 1978-04-01 Kouhan Denshi Kougiyou Kk Information transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877705A (en) * 1972-01-18 1973-10-19
JPS5335404A (en) * 1976-09-14 1978-04-01 Kouhan Denshi Kougiyou Kk Information transmission system

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