0079442-A2 is referenced by 8 patents and cites 4 patents.

Data translation apparatus incorporates a two-stage adaptive single modeling approach using a state generating model structure unit (1 or 83) feeding a parameter generating unit which is associated with an encoder or decoder. Both units are adaptive, the model structure unit developing a reference context from a base state by up to a predetermined number of additional directed context states from inputs presented for translation. A count state table 35 is accessed for each symbol presented, the count being incremented and the first so many counts to reach a threshold value having their associated states incremented. Runs of more than a preset number of indentical symbols are separately detected and so signalled, the raw state superceding the table generated state.

Title
Data translation apparatus translating between raw and compression encoded data forms.
Application Number
EP19820108517 19820916
Publication Number
0079442 (A2)
Application Date
September 16, 1982
Publication Date
May 25, 1983
Inventor
Rissanen Jorma Johannes
Langdon Glen George Jr
Assignee
Ibm
US
IPC
G06F 05/00
H04L 23/00
H03M 07/42
H03M 07/40
G06F 05/00
H04L 23/00
H03M 07/42
H03M 07/40
G06F 05/00
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