<s>
Phase-jitter	B-Algorithm
modulation	I-Algorithm
(	O
PJM	O
)	O
is	O
a	O
modulation	O
method	O
specifically	O
designed	O
to	O
meet	O
the	O
unique	O
requirements	O
of	O
passive	B-Application
RFID	I-Application
tags	O
.	O
</s>
<s>
It	O
has	O
been	O
adopted	O
by	O
the	O
high-frequency	O
RFID	B-Application
Air	O
Interface	O
Standard	O
ISO/IEC	B-Algorithm
18000-3	I-Algorithm
MODE	I-Algorithm
2	I-Algorithm
for	O
high-speed	O
bulk	O
conveyor-fed	O
item-level	O
identification	O
because	O
of	O
its	O
demonstrably	O
higher	O
data	O
rates	O
.	O
</s>
<s>
The	O
MODE	O
2	O
PJM	O
data	O
rate	O
is	O
423	O
,	O
75	O
kbit/s	O
;	O
16	O
times	O
faster	O
than	O
the	O
alternative	O
MODE	O
1	O
system	O
ISO/IEC	B-Algorithm
18000-3	I-Algorithm
MODE	O
1	O
and	O
the	O
legacy	O
HF	O
system	O
ISO/IEC	O
15693	O
.	O
</s>
<s>
PJM	O
can	O
be	O
regarded	O
as	O
a	O
very	O
low-level	O
phase-modulation	B-Device
(	O
PM	O
)	O
signal	O
where	O
amplitude-modulation	B-Device
(	O
AM	O
)	O
components	O
are	O
suppressed	O
to	O
provide	O
a	O
constant-modulus	O
signal	O
.	O
</s>
<s>
Passive	B-Application
RFID	I-Application
tags	O
have	O
no	O
internal	O
power	O
source	O
and	O
derive	O
their	O
power	O
from	O
an	O
external	O
power	O
source	O
,	O
typically	O
the	O
interrogating	O
signal	O
generated	O
by	O
an	O
RFID	B-Application
interrogator	O
.	O
</s>
<s>
The	O
interrogation	O
signal	O
is	O
required	O
to	O
both	O
power	O
and	O
communicate	O
with	O
the	O
RFID	B-Application
tag	I-Application
.	O
</s>
<s>
There	O
are	O
international	O
and	O
US	O
regulations	O
that	O
restrict	O
the	O
spectrum	O
of	O
the	O
transmitted	O
interrogation	O
signal	O
used	O
by	O
any	O
RFID	B-Application
system	O
.	O
</s>
<s>
Primary	O
applications	O
are	O
in	O
RFID	B-Application
tags	I-Application
for	O
use	O
in	O
gaming	O
,	O
healthcare	O
,	O
pharmaceuticals	O
,	O
document	O
and	O
media	O
management	O
.	O
</s>
