Panasonic KX-FT21BX Service Manual page 164

KX-FT21LA
Signal
Image Signal
RTC
(Return to Control)
EOP
(End of Procedure)
MCF
(Message Confirmation)
DCN
(Disconnect)
MPS
(Multi-Page Signal)
PRI-EOP
(Procedural Interrupt-EOP)
PIP
(Procedural Interrupt Positive)
2. Redundancy Compression Process Coding Mode
This unit uses one-dimensional MH format.
(a) Document
(b) Part of document
(c) Run length and
image signals
equivalent to (b)
(d) Codification of
(c) according to
MH formula
Identification Signal Format
Refer to the next page.
X1110100
X0110001
X1011111
X1110010
X1111100
X0110101
Basic Facsimile Technique
Facsimile
Black 4 2
White
15 12
00110111101010 011
(White 400) (Black 4)
11 0100111 000101
(Black 2) (White 18) (Black 8)
(c) Total bit number before MH codification (497 bit)
(d) Total bit number after MH codification (63 bit)
Sends 12 bits (0...01 • ~ 6 times) to the receiver at the
same speed as the image signal and notifies completion
of the first sheet.
End of one communication
End of 1 page reception
Phase E starts.
Completion of transmission of 1 page. If there are still
more documents to be sent, they are output instead of
EOP. After MCF reception, the sender transmits an
image signal of the second sheet.
If there is an operator call from the sender, it is output
after RTC.
This is output when an operator call is received.
4 2 8 3
16 18 13
110101 11
(White 15) (Black 2) (White 12)
000011 10
(White 13) (Black 3)
- 138 -
Function
Modified Huffman (MH) Code
Code for
Run length
White Line
0 00110101
1 000111
2 0111
3 1000
4 1011
5 1100
6 1110
7 1111
8 10011
9 10100
10 00111
11 01000
12 001000
13 000011
14 110100
15 110101
16 101010
17 101011
18 0100111
001000 011 101010
(Black 4) (White 16)
Code for
Black Line
000011011
010
11
10
011
0011
0010
00011
000101
000100
0000100
0000101
0000111
00000100
00000111
000011000
0000010111
0000011000
0000001000