<s>
Charactron	B-General_Concept
was	O
a	O
U.S.	O
registered	O
trademark	O
(	O
number	O
0585950	O
,	O
23	O
February	O
1954	O
)	O
of	O
Consolidated	O
Vultee	O
Aircraft	O
Corporation	O
(	O
Convair	O
)	O
for	O
its	O
shaped	O
electron	O
beam	O
cathode	B-Device
ray	I-Device
tube	I-Device
.	O
</s>
<s>
Charactron	B-General_Concept
CRTs	O
performed	O
functions	O
of	O
both	O
a	O
display	O
device	O
and	O
a	O
read-only	B-Device
memory	I-Device
storing	O
multiple	O
characters	O
and	O
fonts	O
.	O
</s>
<s>
The	O
similar	O
Typotron	O
was	O
a	O
U.S.	O
registered	O
trademark	O
(	O
23	O
November	O
1953	O
)	O
of	O
Hughes	O
Aircraft	O
Corporation	O
for	O
its	O
type	O
of	O
shaped	O
electron	O
beam	O
storage	B-General_Concept
tube	I-General_Concept
with	O
a	O
direct-view	O
bistable	O
storage	O
screen	O
.	O
</s>
<s>
The	O
Charactron	B-General_Concept
CRT	O
used	O
an	O
electron	O
beam	O
to	O
flood	O
a	O
specially	O
patterned	O
perforated	O
anode	O
that	O
contained	O
the	O
stencil	O
patterns	O
for	O
each	O
of	O
the	O
characters	O
that	O
it	O
could	O
form	O
.	O
</s>
<s>
The	O
term	O
Charactron	B-General_Concept
is	O
sometimes	O
mistakenly	O
applied	O
to	O
another	O
type	O
of	O
CRT	O
properly	O
called	O
a	O
monoscope	O
which	O
generates	O
an	O
electrical	O
signal	O
by	O
scanning	O
an	O
electron	O
beam	O
of	O
uniform	O
cross	O
section	O
across	O
a	O
printed	O
pattern	O
on	O
an	O
internal	O
target	O
electrode	O
.	O
</s>
<s>
There	O
were	O
two	O
basic	O
types/uses	O
of	O
Charactrons	B-General_Concept
:	O
</s>
<s>
An	O
example	O
was	O
the	O
tube	O
of	O
the	O
AN/FSQ	O
-7	O
SAGE	O
Semi	B-Device
Automatic	I-Device
Ground	I-Device
Environment	I-Device
computer	O
console	O
.	O
</s>
<s>
The	O
technical	O
expertise	O
,	O
and	O
trademarks	O
,	O
for	O
the	O
Charactron	B-General_Concept
ultimately	O
passed	O
to	O
Stromberg-Carlson	O
,	O
General	O
Dynamics	O
,	O
Stromberg	O
DatagraphiX	O
,	O
Anacomp	O
,	O
and	O
finally	O
Lexel	O
Imaging	O
Systems	O
.	O
</s>
