UNB ECE4253 Digital Communications
Department of Electrical and Computer Engineering - University of New Brunswick, Fredericton, NB, Canada

V.42bis Data Compression Tool

Model PA-28 V.42bis Compression Tool
Input Text:
Output Format: Bits Chars Both
Table View: None Evolving Summary 
Options:ExamplesDiscussionASCII 

Compressed Text

H 04B O 052 L 04F A 044 HO 103 LA 105 HOL 107 AH 106 OL 104 AHO 10A LAH 108 OLA 10B HOLA 109 HOLA 109 HOLAH 10F OLAH 10E OLAH 10E OLAHO 111 LAHO 10D LAHO 10D LAHOL 113 A 044

Compressed version uses 22 codewords.

Each codeword is 9-bits. (shown in hex)

(64 CHARS, 198 BITS) = 3.093 bits per character

Compression Ratio = 198/512 = 0.386

2025-05-01 19:08:01 ADT
Last Updated: 2008-02-25 		Richard Tervo [ tervo@unb.ca ] Back to the course homepage...