<s>
A	O
jog	B-Device
dial	I-Device
,	O
jog	B-Device
wheel	I-Device
,	O
shuttle	O
dial	O
,	O
or	O
shuttle	O
wheel	O
is	O
a	O
type	O
of	O
knob	O
,	O
ring	O
,	O
wheel	O
,	O
or	O
dial	O
which	O
allows	O
the	O
user	O
to	O
shuttle	O
or	O
jog	O
through	O
audio	O
or	O
video	O
media	O
.	O
</s>
<s>
It	O
is	O
commonly	O
found	O
on	O
models	O
of	O
CD	B-Device
players	I-Device
which	O
are	O
made	O
for	O
disc	O
jockeys	O
,	O
and	O
on	O
professional	O
video	O
equipment	O
such	O
as	O
video	O
tape	O
recorders	O
.	O
</s>
<s>
More	O
recently	O
,	O
they	O
are	O
found	O
on	O
handheld	B-Application
PDAs	B-Application
,	O
and	O
as	O
the	O
scroll	O
wheel	O
on	O
computer	B-Device
mice	I-Device
.	O
</s>
<s>
One	O
type	O
has	O
no	O
stops	O
and	O
can	O
be	O
spun	O
the	O
entire	O
way	O
around	O
,	O
because	O
it	O
is	O
a	O
rotary	B-Algorithm
incremental	I-Algorithm
encoder	I-Algorithm
.	O
</s>
<s>
This	O
is	O
usually	O
done	O
on	O
DJ	O
CD	B-Device
players	I-Device
,	O
for	O
the	O
purpose	O
of	O
beatmatching	O
,	O
and	O
is	O
equivalent	O
to	O
an	O
earlier	O
turntablist	O
DJ	O
moving	O
a	O
phonograph	O
record	O
back	O
and	O
forth	O
slightly	O
to	O
find	O
the	O
physical	O
location	O
of	O
a	O
starting	O
beat	O
within	O
the	O
groove	O
.	O
</s>
<s>
Sony	O
Corporation	O
holds	O
a	O
patent	O
for	O
a	O
5-way	O
version	O
of	O
the	O
jog	B-Device
dial	I-Device
.	O
</s>
<s>
A	O
5-way	O
jog	B-Device
dial	I-Device
allows	O
up	O
and	O
down	O
scrolling	O
,	O
right	O
and	O
left	O
deflections	O
,	O
and	O
a	O
press-to-click	O
action	O
.	O
</s>
<s>
Such	O
jog	B-Device
dial	I-Device
was	O
a	O
feature	O
of	O
the	O
Sony	B-Application
CLIÉ	I-Application
PDA	B-Application
series	O
and	O
Sony	B-Language
Ericsson	I-Language
P800	I-Language
,	O
P900	B-Language
and	O
P910	B-Language
smartphones	O
.	O
</s>
<s>
A	O
5-way	O
jog	B-Device
dial	I-Device
has	O
not	O
been	O
used	O
by	O
Sony	O
or	O
its	O
subsidiaries	O
since	O
2006	O
.	O
</s>
