04420771 is referenced by 82 patents and cites 4 patents.

A series of words each representing one of at least M (M.gtoreq.3) different values is encoded by grouping the words into alternate runs of (1) a first, frequently occurring value, and (2) all other values. A coded representation of each run length as well as a representation of the non-frequent values which make up every other run are then combined in a predetermined sequence. Different code tables may be used to generate code words for each type of information.

Title
Technique for encoding multi-level signals
Application Number
6/232701
Publication Number
4420771
Application Date
February 9, 1981
Publication Date
December 13, 1983
Inventor
Peter Pirsch
Hanover
DE
Agent
Barry H Freedman
Assignee
Bell Telephone Laboratories Incorporated
NJ, US
IPC
H04N 7/12
H04L 3/00
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