<s>
The	O
D-Beam	B-General_Concept
was	O
originally	O
manufactured	O
by	O
Interactive	O
Light	O
,	O
as	O
a	O
stand-alone	O
unit	O
,	O
around	O
1996	O
.	O
</s>
<s>
It	O
was	O
then	O
soon	O
purchased	O
by	O
Roland	O
Corporation	O
,	O
becoming	O
trademarked	O
and	O
rebranded	O
as	O
D-Beam	B-General_Concept
Controller	I-General_Concept
for	O
their	O
own	O
music	O
equipment	O
.	O
</s>
<s>
After	O
being	O
acquired	O
by	O
Roland	O
,	O
the	O
D-Beam	B-General_Concept
Controller	I-General_Concept
was	O
introduced	O
on	O
a	O
larger	O
scale	O
through	O
the	O
Roland	O
MC-505	O
in	O
1998	O
,	O
was	O
further	O
incorporated	O
into	O
a	O
large	O
number	O
of	O
Roland	O
's	O
grooveboxes	O
,	O
workstations	O
,	O
keyboards	O
,	O
and	O
digital	O
samplers	O
over	O
the	O
years	O
.	O
</s>
<s>
The	O
D-Beam	B-General_Concept
is	O
an	O
interface	O
that	O
can	O
control	O
and	O
manipulate	O
sounds	O
by	O
hand	O
movements	O
interacting	O
with	O
an	O
infrared	O
beam	O
of	O
light	O
.	O
</s>
<s>
Although	O
controlled	O
in	O
a	O
similar	O
manner	O
to	O
a	O
theremin	O
,	O
the	O
operating	O
principles	O
are	O
fundamentally	O
different	O
;	O
the	O
theremin	O
uses	O
Capacitive	B-Device
sensing	I-Device
.	O
</s>
