
4-16 Sensors and Sensor Technology
Inthe simple structure, three dierent coecients can be applied to each of the pulse train signals,
na
mely,
0
,
0.5, a
nd
1.
e
nal
p
ulse
si
gnals
a
re
a
dded
u
sing
a c
ombiner
t
hat
s
cans
t
he
d
ierent
i
nputs
.
e in
-pixel
pu
lse
tr
ain
it
self
is pr
oduced
by th
e
ci
rcuits
pr
esented
in th
e
DP
S
sect
ion
.
i
s
ty
pe
of
pr
ocessing
is mo
re
ap
propriate
fo
r
use in ke
rnel
co
nvolution
an
d
is no
t
su
itable
fo
r
CN
N
ta
sks
si
nce
th
e
st
orage
of th
e
pr
evious
st
ate
is no
t
fe
asible
on pu
lse
tr
ains
. e fo
urth
ca
tegory
pe
rforms
th
e
re
quired
pr
o-
cessing
on an
alog
ph
otodiode
da
ta
di
rectly
[4
1–43]
. Di
erent
mi
xed
si
gnal
ci
rcuits
ca
n
be used in ...