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NL7308141A - Coding of binary represented data and symbols - compresses three eight bit words into 26 bits - Google Patents

Coding of binary represented data and symbols - compresses three eight bit words into 26 bits

Info

Publication number
NL7308141A
NL7308141A NL7308141A NL7308141A NL7308141A NL 7308141 A NL7308141 A NL 7308141A NL 7308141 A NL7308141 A NL 7308141A NL 7308141 A NL7308141 A NL 7308141A NL 7308141 A NL7308141 A NL 7308141A
Authority
NL
Netherlands
Prior art keywords
bits
symbols
compresses
coding
plus
Prior art date
Application number
NL7308141A
Other versions
NL156001B (en
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 filed Critical
Priority to NL7308141A priority Critical patent/NL156001B/en
Publication of NL7308141A publication Critical patent/NL7308141A/en
Publication of NL156001B publication Critical patent/NL156001B/en

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
    • H04L25/4908—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 using mBnB codes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)

Abstract

The original signal consists of mixed 8-bit data words and symbols of 7 bits plus a parity bit. To groups of three words are added two bits, which, together with some (specified) parity bits in any symbols present completely define that three word pattern. In the pref. scheme the additional bits define the general nature of the word pattern while the parity bits define details (e.g. O, 1 specifies a data word followed by a symbol; the parity bit then specifies the following word). The whole is intended to be divided into blocks of 5 bits, plus one, and transmitted as 5 blocks of 6 bits, plus two, as in 6902950.
NL7308141A 1973-06-12 1973-06-12 SYSTEM FOR TRANSFER OF DATA AND SIGNS. NL156001B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7308141A NL156001B (en) 1973-06-12 1973-06-12 SYSTEM FOR TRANSFER OF DATA AND SIGNS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7308141A NL156001B (en) 1973-06-12 1973-06-12 SYSTEM FOR TRANSFER OF DATA AND SIGNS.

Publications (2)

Publication Number Publication Date
NL7308141A true NL7308141A (en) 1974-12-16
NL156001B NL156001B (en) 1978-02-15

Family

ID=19819057

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7308141A NL156001B (en) 1973-06-12 1973-06-12 SYSTEM FOR TRANSFER OF DATA AND SIGNS.

Country Status (1)

Country Link
NL (1) NL156001B (en)

Also Published As

Publication number Publication date
NL156001B (en) 1978-02-15

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