Process and arrangement for representing digital data by binary

Details Process and arrangement for representing digital data by binary Process and arrangement for representing digital data by binary

1975-07-23

1977-01-25

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

G11B 500

Patent

active

040054780

ABSTRACT:
In a process for representing digital data by binary signals, in which the data are in the form of binary-coded, ternary-coded characters, or characters coded in a higher value code, the characters are fed in the form of data signals to a data transmitter which assigns binary signals to the characters. The binary signals are transmitted over a transmission channel to a data receiver which regains the digital data from the binary signals. The possible combinations of a given number of characters which form a group of characters are each assigned at least one combination of a plurality of signal elements, each of which represents a binary signal and forms a group of signal elements. The combination, in each case, contains first signal elements representing a first or a second amplitude value and/or second signal elements representing a change in the amplitude value. The assignment is carried out in such a manner that within each group of signal elements and with any arbitrary sequence of the groups of signal elements, always at least one plurality of first signal elements occurs between two second signal elements. The characters which are fed to the data transmitter are divided into groups of the given number, and the groups of characters are represented, in accordance with the assignment, by the groups of signal elements.

REFERENCES:
patent: 3685033 (1972-08-01), Srivastaua et al.
patent: 3757309 (1973-09-01), Hashizume et al.
patent: 3921210 (1975-11-01), Halpern

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