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Canon
fax basic 2000
Manual Do Serviço
Canon fax basic 2000 Manual Do Serviço
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CHAPTER
5
1
2
3
4
5
6
ït
çi
5
G3 FACSIMILE COMMU-
NICATIONS
1. INTRODUCTION...................................................................... 5-2
2. WHAT IS A “G3 FACSIMILE?”.................................................. 5-2
3. G3 FACSIMILE IMAGE TRANSMISSION ................................ 5-3
3.1
Structure of Image Signals.............................................. 5-3
3.2
Transmission Time .......................................................... 5-5
4. CODING SCHEMES ................................................................ 5-8
4.1
Why is Coding Necessary? ............................................. 5-8
4.2
MH Coding Scheme (One-dimensional Coding Scheme) ...... 5-10
4.3
MR Coding Scheme (Two-dimensional Coding Scheme) ...... 5-17
4.4
MMR Coding Scheme ................................................... 5-28
4.5
JBIG Image Compression Encoding Scheme ............... 5-29
5. MODULATION METHOD ....................................................... 5-45
5.1
Modulation and Demodulation ...................................... 5-45
5.2
Shift and Modulation Methods....................................... 5-46
5.3
Modulation Methods up to 9600 bps ............................. 5-47
5.4
High-speed MODEMs above 14400 bps....................... 5-55
5.5
V.17 (V.33) MODEM Technology ................................... 5-55
5.6
V.34 MODEM Technology ............................................. 5-73
6. TRANSMISSION CONTROL PROCEDURES ....................... 5-89
6.1
Outline of Transmission Control Procedures ................. 5-89
6.2
Signal Types .................................................................. 5-90
6.3
Basic Transmission Control Procedure ......................... 5-91
6.4
Procedures for Performing Individual Page Control (Q signals)...... 5-100
6.5
Training........................................................................ 5-102
6.6
Method for Detecting Image Signal Transmission Errors ..... 5-104
6.7
Option Signals ............................................................. 5-106
6.8
Structure of Binary Signals.......................................... 5-107
6.9
Example of G3 Procedures ......................................... 5-122
6.10 ECM Communications................................................. 5-123
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