Baudot Code

The Baudot code or International Teleprinter Code was invented by Emile Baudot in 1870. It is binary code which uses crosses and dots. It was used for teleprinter messages instead of the morse code and allowed to encode 2^5=32 characters efficiently. Each character was preceeded and followed by a bit to announce its start and end.

The following table gives an overview of the Baudot encoding, the left-most bit is the first bit. A one represents a cross and a zero a dot. For convenience we will use the ones and zeroes for calculations and refer to the crosses and dots where necessary.

Binary	Decimal	Hex	Octal	Letter	Figure
00000	0	0	0	Blank	Blank
00001	1	1	1	T	5
00010	2	2	2	CR	CR
00011	3	3	3	O	9
00100	4	4	4	Space	Space
00101	5	5	5	H
00110	6	6	6	N	,
00111	7	7	7	M	.
01000	8	8	10	Line Feed	Line Feed
01001	9	9	11	L	)
01010	10	A	12	R	4
01011	11	B	13	G	&
01100	12	C	14	I	8
01101	13	D	15	P	0
01110	14	E	16	C	:
01111	15	F	17	V	;
10000	16	10	20	E	3
10001	17	11	21	Z	"
10010	18	12	22	D	$
10011	19	13	23	B	?
10100	20	14	24	S	BEL
10101	21	15	25	Y	6
10110	22	16	26	F	!
10111	23	17	27	X	/
11000	24	18	30	A	-
11001	25	19	31	W	2
11010	26	1A	32	J	'
11011	27	1B	33	Figure Shift
11100	28	1C	34	U	7
11101	29	1D	35	Q	1
11110	30	1E	36	K	(
11111	31	1F	37	Letter Shift