<s>
MediaFLO	B-Device
was	O
a	O
technology	O
developed	O
by	O
Qualcomm	O
for	O
transmitting	O
audio	O
,	O
video	O
and	O
data	O
to	O
portable	O
devices	O
such	O
as	O
mobile	O
phones	O
and	O
personal	O
televisions	O
,	O
used	O
for	O
mobile	B-Application
television	I-Application
.	O
</s>
<s>
In	O
the	O
United	O
States	O
,	O
the	O
service	O
powered	O
by	O
this	O
technology	O
was	O
branded	O
as	O
FLO	B-Device
TV	I-Device
.	O
</s>
<s>
Broadcast	B-Operating_System
data	O
transmitted	O
via	O
MediaFLO	B-Device
includes	O
live	O
,	O
real	O
time	O
audio	O
and	O
video	O
streams	O
,	O
as	O
well	O
as	O
scheduled	O
video	O
and	O
audio	O
clips	O
and	O
shows	O
.	O
</s>
<s>
The	O
technology	O
could	O
also	O
carry	O
Internet	B-Protocol
Protocol	I-Protocol
datacast	O
application	O
data	O
,	O
such	O
as	O
stock	O
market	O
quotes	O
,	O
sports	O
scores	O
,	O
and	O
weather	O
reports	O
.	O
</s>
<s>
FLO	B-Device
TV	I-Device
discontinued	O
service	O
on	O
March	O
27	O
,	O
2011	O
.	O
</s>
<s>
The	O
"	O
FLO	O
"	O
in	O
MediaFLO	B-Device
stood	O
for	O
Forward	O
Link	O
Only	O
,	O
meaning	O
that	O
the	O
data	O
transmission	O
path	O
is	O
one	O
way	O
,	O
from	O
the	O
tower	O
to	O
the	O
device	O
.	O
</s>
<s>
The	O
MediaFLO	B-Device
system	O
transmitted	O
data	O
on	O
a	O
frequency	O
separate	O
from	O
the	O
frequencies	O
used	O
by	O
current	O
mobile	O
telephone	O
networks	O
.	O
</s>
<s>
MediaFLO	B-Device
was	O
a	O
competitor	O
to	O
the	O
Korean	O
T-DMB	O
,	O
the	O
Japanese	O
1seg	B-Device
and	O
the	O
European	O
DVB-H	B-Protocol
standards	I-Protocol
.	O
</s>
<s>
Qualcomm	O
conducted	O
MediaFLO	B-Device
technical	O
trials	O
internationally	O
,	O
with	O
the	O
intention	O
of	O
forming	O
partnerships	O
with	O
existing	O
multi-channel	O
content	O
providers	O
and	O
service	O
operators	O
,	O
but	O
has	O
since	O
discontinued	O
development	O
.	O
</s>
<s>
The	O
protocol	O
was	O
developed	O
because	O
of	O
the	O
inherent	O
spectral	O
inefficiency	O
of	O
unicasting	B-Protocol
high-rate	O
full-motion	O
video	O
to	O
multiple	O
subscribers	O
.	O
</s>
<s>
Additionally	O
,	O
traditional	O
analog	O
television	O
and	O
over-the-air	O
terrestrial	B-Application
digital	I-Application
television	I-Application
signals	O
(	O
DVB-T	O
)	O
were	O
difficult	O
to	O
implement	O
on	O
mobile	O
devices	O
,	O
due	O
mostly	O
to	O
issues	O
of	O
power	O
consumption	O
.	O
</s>
<s>
ATSC	B-Device
,	O
used	O
only	O
by	O
the	O
United	O
States	O
and	O
its	O
neighbors	O
,	O
also	O
has	O
difficulty	O
even	O
with	O
fixed	O
reception	O
due	O
to	O
multipath	O
,	O
and	O
mobile	O
ATSC-M/H	B-Device
(	O
which	O
is	O
free-to-air	O
from	O
individual	O
TV	O
stations	O
)	O
was	O
not	O
finalized	O
until	O
2008	O
.	O
</s>
<s>
MediaFLO	B-Device
streams	O
are	O
only	O
200-250	O
kbit/s	O
,	O
which	O
would	O
be	O
insufficient	O
for	O
a	O
larger	O
screen	O
size	O
.	O
</s>
<s>
In	O
the	O
now	O
defunct	O
United	O
States	O
implementation	O
,	O
FLO	O
was	O
transmitted	O
by	O
a	O
network	O
of	O
high-power	O
broadcast	B-Operating_System
transmitters	O
operating	O
at	O
effective	O
radiated	O
powers	O
as	O
high	O
as	O
50	O
kilowatts	O
.	O
</s>
<s>
The	O
activation	O
of	O
many	O
of	O
these	O
transmitters	O
were	O
delayed	O
due	O
to	O
the	O
official	O
end	O
of	O
analog	O
TV	O
broadcasting	B-Operating_System
on	O
channel	O
55	O
being	O
delayed	O
.	O
</s>
<s>
The	O
transmission	O
was	O
an	O
encrypted	O
OFDM	B-Protocol
set	O
of	O
QAM	B-Device
signals	O
sent	O
on	O
a	O
5.55MHz	O
channel	O
from	O
716-722MHz	O
(	O
former	O
UHF	O
TV	O
channel	O
55	O
)	O
.	O
</s>
<s>
Qualcomm	O
also	O
bought	O
,	O
in	O
a	O
later	O
auction	B-Algorithm
,	O
the	O
use	O
of	O
former	O
analog	O
UHF	O
TV	O
channel	O
56	O
(	O
722-728MHz	O
)	O
in	O
Boston	O
,	O
Los	O
Angeles	O
,	O
New	O
York	O
,	O
Philadelphia	O
and	O
San	O
Francisco	O
for	O
additional	O
services	O
.	O
</s>
<s>
However	O
,	O
this	O
is	O
owned	O
by	O
Manifest	O
Wireless	O
(	O
a	O
subsidiary	O
of	O
Dish	O
Network	O
's	O
Frontier	O
Wireless	O
)	O
in	O
most	O
other	O
media	O
markets	O
,	O
where	O
ATSC-M/H	B-Device
signals	O
were	O
on	B-Operating_System
air	I-Operating_System
.	O
</s>
<s>
All	O
of	O
the	O
transmitters	O
sent	O
the	O
same	O
signal	O
and	O
used	O
the	O
same	O
frequency	O
,	O
forming	O
a	O
single-frequency	B-Device
network	I-Device
.	O
</s>
<s>
Some	O
other	O
operational	O
parameters	O
of	O
MediaFLO	B-Device
are	O
as	O
follows	O
:	O
</s>
<s>
There	O
is	O
a	O
window	O
time	O
TWGI	O
included	O
both	O
before	O
and	O
after	O
each	O
OFDM	B-Protocol
symbol	O
.	O
</s>
<s>
For	O
conditional	B-Architecture
access	I-Architecture
,	O
Verizon	B-Application
Wireless	I-Application
utilized	O
its	O
EVDO	O
network	O
to	O
authenticate	O
mobile	O
handsets	O
and	O
provide	O
the	O
decryption	O
keys	O
necessary	O
to	O
decode	O
the	O
programming	O
.	O
</s>
<s>
There	O
were	O
16	O
TV	O
channels	O
broadcast	B-Operating_System
for	O
Verizon	B-Application
.	O
</s>
<s>
The	O
additional	O
Verizon	B-Application
channels	O
include	O
:	O
</s>
<s>
There	O
were	O
16	O
TV	O
channels	O
broadcast	B-Operating_System
for	O
AT&	O
T:AT	O
&T	O
Mobile	O
TVThe	O
additional	O
AT&T	O
channels	O
are	O
:	O
</s>
<s>
The	O
standalone	O
FLO	B-Device
TV	I-Device
Personal	O
Television	O
and	O
FLO	B-Device
TV	I-Device
Automotive	O
products	O
also	O
included	O
CNN	O
Live	O
Mobile	O
and	O
Crackle	O
.	O
</s>
<s>
In	O
France	O
,	O
Qualcomm	O
tried	O
unsuccessfully	O
to	O
convince	O
TDF	O
to	O
choose	O
MediaFLO	B-Device
technology	O
.	O
</s>
<s>
In	O
the	O
UK	O
,	O
British	O
Sky	O
Broadcasting	B-Operating_System
conducted	O
trials	O
of	O
MediaFLO	B-Device
in	O
2006	O
.	O
</s>
<s>
Devices	O
featuring	O
MediaFLO	B-Device
were	O
introduced	O
by	O
LG	O
and	O
Samsung	B-Application
at	O
CES	O
2006	O
in	O
Las	O
Vegas	O
.	O
</s>
<s>
On	O
December	O
1	O
,	O
2005	O
Verizon	B-Application
Wireless	I-Application
and	O
Qualcomm	O
announced	O
a	O
partnership	O
for	O
the	O
launch	O
of	O
the	O
MediaFLO	B-Device
network	O
.	O
</s>
<s>
Verizon	B-Application
launched	O
the	O
service	O
commercially	O
as	O
part	O
of	O
its	O
VCAST	O
offering	O
on	O
March	O
1	O
,	O
2007	O
,	O
marketing	O
the	O
MediaFLO-specific	O
technology/service	O
as	O
"	O
VCAST	O
TV	O
"	O
.	O
</s>
<s>
AT&T	O
Mobility	O
launched	O
their	O
MediaFLO	B-Device
service	O
on	O
May	O
4	O
,	O
2008	O
.	O
</s>
<s>
FLO	B-Device
TV	I-Device
was	O
first	O
offered	O
on	O
certain	O
wireless	O
phones	O
offered	O
by	O
Verizon	B-Application
Wireless	I-Application
and	O
AT&T	O
Wireless	O
.	O
</s>
<s>
In	O
November	O
2009	O
FLO	B-Device
TV	I-Device
introduced	O
the	O
FLO	B-Device
TV	I-Device
Personal	O
Television	O
mobile	O
device	O
(	O
model	O
PTV-350	O
)	O
.	O
</s>
<s>
On	O
July	O
21	O
,	O
2010	O
,	O
Qualcomm	O
CEO	O
Paul	O
Jacobs	O
said	O
the	O
company	O
planned	O
to	O
either	O
sell	O
its	O
MediaFLO	B-Device
business	O
or	O
its	O
spectrum	O
,	O
or	O
to	O
find	O
a	O
partner	O
.	O
</s>
<s>
On	O
October	O
5	O
,	O
2010	O
,	O
Qualcomm	O
signaled	O
the	O
end	O
of	O
the	O
FloTV	B-Device
service	O
by	O
declaring	O
that	O
there	O
would	O
be	O
no	O
further	O
sales	O
of	O
devices	O
to	O
consumers	O
.	O
</s>
<s>
The	O
company	O
said	O
that	O
the	O
MediaFLO	B-Device
spectrum	O
could	O
be	O
used	O
for	O
electronic	O
magazines	O
or	O
newspapers	O
,	O
though	O
such	O
services	O
could	O
be	O
offered	O
alongside	O
the	O
existing	O
broadcast	B-Operating_System
channels	O
.	O
</s>
<s>
On	O
December	O
20	O
,	O
2010	O
,	O
AT&T	O
announced	O
that	O
it	O
would	O
purchase	O
Qualcomm	O
's	O
FCC	O
licenses	O
in	O
the	O
700MHz	O
band	O
and	O
that	O
FLO	B-Device
TV	I-Device
service	O
would	O
be	O
shut	O
down	O
on	O
March	O
27	O
,	O
2011	O
.	O
</s>
<s>
Despite	O
spending	O
$132	O
million	O
in	O
the	O
previous	O
quarter	O
on	O
bolstering	O
FLO	B-Device
TV	I-Device
,	O
Qualcomm	O
still	O
made	O
a	O
profit	O
on	O
the	O
sale	O
,	O
as	O
it	O
had	O
originally	O
paid	O
$38	O
million	O
for	O
the	O
former	O
channel	O
55	O
and	O
$558	O
million	O
for	O
the	O
former	O
channel	O
56	O
.	O
</s>
