JPS577658A - Pulse-coding system for burst signal - Google Patents

Pulse-coding system for burst signal

Info

Publication number
JPS577658A
JPS577658A JP8118680A JP8118680A JPS577658A JP S577658 A JPS577658 A JP S577658A JP 8118680 A JP8118680 A JP 8118680A JP 8118680 A JP8118680 A JP 8118680A JP S577658 A JPS577658 A JP S577658A
Authority
JP
Japan
Prior art keywords
circuit
signal
burst
synchronizing
polarity
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
JP8118680A
Other languages
Japanese (ja)
Other versions
JPH0128550B2 (en
Inventor
Hiroshi Shimizu
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 JP8118680A priority Critical patent/JPS577658A/en
Publication of JPS577658A publication Critical patent/JPS577658A/en
Publication of JPH0128550B2 publication Critical patent/JPH0128550B2/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
    • H04L25/38—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
    • H04L25/4917—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 using multilevel codes
    • H04L25/4923—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 using multilevel codes using ternary codes
    • H04L25/4925—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 using multilevel codes using ternary codes using balanced bipolar ternary codes

Landscapes

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

Abstract

PURPOSE:To use a narrow-band transmission line by shortening burst length by suppressing a DC component in a burst without adding a blancing bit to the burst signal. CONSTITUTION:A transmitter 1 is fabricated of a shift register 11 storing odd- numbered information bits, a parity circuit 12 which outputs a parity signal 15, a coding circuit 13 which performs coding process according to the parity signal 15 by adding a burst synchronizing bit F to the information bits, and a trasmitting circuit 14. A receiver 2, on the other hand, consists of a receiving circuit 21, a polarity control circuit 24 which separates received pulses into positive-polarty and negative polarity ones and also converts bipolar pulses into unipolar pulses, a synchronizing circuit 22 which extracts burst synchronizing bits F, and a decoding circuit 23 which decodes the received signal made unipolar under the control of the extracted synchronizing signal and a polarity signal outputted from the polarity control circuit 24.
JP8118680A 1980-06-16 1980-06-16 Pulse-coding system for burst signal Granted JPS577658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8118680A JPS577658A (en) 1980-06-16 1980-06-16 Pulse-coding system for burst signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8118680A JPS577658A (en) 1980-06-16 1980-06-16 Pulse-coding system for burst signal

Publications (2)

Publication Number Publication Date
JPS577658A true JPS577658A (en) 1982-01-14
JPH0128550B2 JPH0128550B2 (en) 1989-06-02

Family

ID=13739430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8118680A Granted JPS577658A (en) 1980-06-16 1980-06-16 Pulse-coding system for burst signal

Country Status (1)

Country Link
JP (1) JPS577658A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035359A (en) * 1989-03-10 1991-07-30 Toyota Jidosha Kabushiki Kaisha Device for changing a direction of an airstream

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035359A (en) * 1989-03-10 1991-07-30 Toyota Jidosha Kabushiki Kaisha Device for changing a direction of an airstream

Also Published As

Publication number Publication date
JPH0128550B2 (en) 1989-06-02

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