Error detection and correction in signal transmission by use of convolution codes

Patent

Description

Digital error correcting coding techniques involving the sensing of conditions under which the decoder is operating. In one aspect a monitoring device counts the ones in the decoding decision and in certain parity checks corrected by those decisions. In another aspect the code is supplemented such that one actual decoding error can create a number of apparent errors or ones, which enables early detection of conditions beyond the capability of the decoder. In another aspect fades are detected in combination with a decoding logic capable of acting upon the whole set or any group of nonfaded elements in the decoding set.

Attributes

Attribute NameValues
Title
  • Error detection and correction in signal transmission by use of convolution codes

Patent Number
  • US 3402393

USPTO Link
Inventor
  • James L. Massey

Inventor From Local Institution
  • James L. Massey

Other Application
  • US 212312

Claims
  • 12

International Patent Classification codes
  • H04L 1/00 (20060101); H03M 13/43 (20060101); H03M 13/00 (20060101); H04L 1/16 (20060101); H04L 1/18 (20060101)

Language
  • English

Date Issued
  • 1968-09-17

Publisher
  • United States Patent and Trademark Office

Assignee
  • Codex Corporation

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James L. Massey Memorial Collection

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