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Dbi-phase-m, Dbi-phase-s – Wavecom W-BitView V2.5.00 User Manual

Page 37

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BitView Manual V2.5.00 WAVECOM W-BV

Function Library

31

Function:
In Bi-Phase-S encoding, a logical ‘0’ is represented by a pair of two bits of opposite values (‘10’ or ‘01’). A
logical ‘1’ is represented by a pair of bits of the same value (‘00’ or ‘11’). The decoding procedure halves
the number of output bits.

DBi-Phase-M

In: Bit stream
Out: Bit stream

Function:
Two bits form a bit period. A bit change at the beginning of a bit period represents a ‘0’, while no bit
change at the beginning of a bit period represents a ‘1’.

DBi-Phase-S

In: Bit stream
Out: Bit stream

Function:
Two bits form a bit period. A bit change at the beginning of a bit period represents a ‘1’, while no bit
change at the beginning of a bit period represents a ‘0’.

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