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Skybuck Flying · Guest

I have finally figured out what the hell it is I invented :)

It's another universal code:

http://en.wikipedia.org/wiki/Universal_code

I shall name this code:

Skybuck's universal code (pseudo name)

Houppermans's universal code (real name Wink

)

Data bits:
a,a,a,a,a,a,b,b,b,b,b,c,c,c,c

Marker bits:
0,0,0,0,0,1,0,0,0,0,1,0,0,0,1

Interleaved data and markers bits:

a0a0a0a0a0a1b0b0b0b0b1c0c0c0c1

The above serial information stream contains 3 information fields. The
fields A,B,C in binairy digits (bits)
( a,a,a,a,a,a,b,b,b,b,b,c,c,c,c ).

The information stream is interleaved (=mixed) with "marker" bits. (the
zeros and ones)

0 means another bit follows for the information field.
1 means the last bit has been reached for the information field.

To read field A a piece of software or hardware can use the following logic:

repeat
Read Data_Bit
Read Marker_Bit
until Marker_Bit = 1;

Thereafter the same logic can be used to read the next field.

Bye,
Skybuck.

Skybuck Flying · Guest

I have updated this section to prevent any further confusion:

"
Data bits:
a,a,a,a,a,a,b,b,b,b,b,c,c,c,c (these bits can have value 0 or 1)
"

(Since some people though these aaaa, bbb, ccc bits behaved like unary
encoding (all ones or all zeros) This is not the case.

These bits can have any binary value, a zero or a one.

I have also included a new part for further clearity:

New part:

"
The position of the bit in the information stream identifies if it is a
marker bit or a data bit.

Positions:
0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2
0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9

Information stream:
a,0,a,0,a,0,a,0,a,0,a,1,b,0,b,0,b,0,b,0,b,1,c,0,c,0,c,0,c,1

The data bits are located on "even" positions. (0,2,4,6,8,10,12,14,16,18,20,
etc )
The marker bits are located on "oneven" positions. (
1,3,5,7,9,11,13,15,17,19, etc )

By reading a data bit, marker bit, data bit, marker bit, etc they can be
seperated from each other.
"

Bye,
Skybuck.

Skybuck Flying · Guest

This is probably even a better description ;)

"
Data bits:
a,a,a,a,a,a,b,b,b,b,b,c,c,c,c (each data bit can be a zero or a one)
"

Skybuck Flying · Guest

Hi,

And finally what better way than to explain it with an example ;)

"
An example:

Data bits for field A = 1,0,0,0,1,0
Data bits for field B = 1,1,1,0,1
Data bits for field C = 1,0,0,1

Market bits for field A = 0,0,0,0,0,1
Market bits for field B = 0,0,0,0,1
Market bits for field C = 0,0,0,1

Data bits and marker bits interleaved for field A: 1,0,0,0,0,0,0,0,1,0,0,1
Data bits and marker bits interleaved for field B: 1,0,1,0,1,0,0,0,1,1
Data bits and marker bits interleaved for field C: 1,0,0,0,0,0,1,1

Interleaved field A,B,C stuck together (final encoded bitstream):

1,0,0,0,0,0,0,0,1,0,0,1,1,0,1,0,1,0,0,0,1,1,1,0,0,0,0,0,1,1
"
Bye,
Skybuck

Riki Wiki Google · Guest

Hoi Skybuck

Take a look here:
http://delphi.wikicities.com/wiki/Delphi_Newsgroups

Skybuck Flying · Guest

"Riki Wiki Google" <auto.del (AT) gmail (DOT) com> wrote