JPS579153A - Coding and decodin circuit - Google Patents

Coding and decodin circuit

Info

Publication number
JPS579153A
JPS579153A JP8483380A JP8483380A JPS579153A JP S579153 A JPS579153 A JP S579153A JP 8483380 A JP8483380 A JP 8483380A JP 8483380 A JP8483380 A JP 8483380A JP S579153 A JPS579153 A JP S579153A
Authority
JP
Japan
Prior art keywords
coding
circuit
differentially
period
transmission data
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
JP8483380A
Other languages
Japanese (ja)
Inventor
Shigeyuki Kawarabayashi
Tadayoshi Kitayama
Yasuo Sugiyama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8483380A priority Critical patent/JPS579153A/en
Publication of JPS579153A publication Critical patent/JPS579153A/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
    • H04L25/4906—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 binary 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 enable asynchronous decoding, by coding transmission data differentially in advance before two-phase coding and coding it differentially after two-phase decoding. CONSTITUTION:A transmission data in bit period T inputted from a terminal 501 is differentially coded through the exclusive logical sum between the differentially coded data delayed only in the bit period T at an FF506 for differential coding and the transmission data at an exclusive logical sum circuit 512, and an exclusive logical sum ai is inputted to a gate circuit 510 and -ai is to a gate circuit 511. Further, by switching the gates 510, 512 alternately at the first and latter half the bit period T, the binary code in the period T can be coded into a binary code in the period T/2. Further, similarly, the decoding circuit can be realized.
JP8483380A 1980-06-19 1980-06-19 Coding and decodin circuit Pending JPS579153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8483380A JPS579153A (en) 1980-06-19 1980-06-19 Coding and decodin circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8483380A JPS579153A (en) 1980-06-19 1980-06-19 Coding and decodin circuit

Publications (1)

Publication Number Publication Date
JPS579153A true JPS579153A (en) 1982-01-18

Family

ID=13841774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8483380A Pending JPS579153A (en) 1980-06-19 1980-06-19 Coding and decodin circuit

Country Status (1)

Country Link
JP (1) JPS579153A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194707A (en) * 1975-02-17 1976-08-19 Daiparusufugonyoru deetadensosochi
JPS5232204A (en) * 1975-09-06 1977-03-11 Fujitsu Ltd Light pcm communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5194707A (en) * 1975-02-17 1976-08-19 Daiparusufugonyoru deetadensosochi
JPS5232204A (en) * 1975-09-06 1977-03-11 Fujitsu Ltd Light pcm communication system

Similar Documents

Publication Publication Date Title
AU575280B2 (en) Method of transmitting information, encoding and decoding device
JPS54116149A (en) Coder and decoder system
EP0369703A3 (en) Spread spectrum communication system
ES8301563A1 (en) Method of coding a sequence of blocks of binary data bits into a sequence of blocks of binary channel bits and arrangement for decoding the data bits coded in accordance with the method
IE45541L (en) Transition coding method for binary data
JPS579153A (en) Coding and decodin circuit
GB2162024B (en) Encoding method for time encoded data
GB1200680A (en) Electrical data transmission system
JPS556975A (en) Coding system
JPS5683163A (en) Encoding system
JPS5627457A (en) Parity prediction system of shifter
Muta Micropower CMOS implementation of three-valued logic functions
JPS5754455A (en) Code transmission system
JPS56117423A (en) Binary coding circuit by multistage threshold level
JPS5369017A (en) Binary data coding system
JPS57162857A (en) Digital data transmitter
RU2014736C1 (en) Method of transmission and reception of discrete messages and device for its realization
JPS56111349A (en) Encoding and decoding method
JPS5619507A (en) Coding system
Taylor An analysis of burst encoding methods and transmission properties
JPS55139618A (en) Coding method
Bhatia et al. Inaccuracy and the best 1: 1 code
JPS5799064A (en) Code communication system
JPS56107655A (en) Code communication system
JPS5748846A (en) Code conversion system