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Contents
ABSTRACT 5
1 INTRODUCTION-A PORTABLE WEARABLE COMPUTER 6
2 HISTORICAL BACKGROUND 9
!A"A RING 11#1 W$%t &s !%'% R&n() # # # # # # # # # # #
# # # # # # # # # # # # # # # # 11
#2 Ins&($t to !%'% R&n( # # # # # # # # # # # # # # # #
# # # # # # # # # # 12
# O*e+%t&n( S,ste &n !%'% R&n( # # # # # # # # # # #
# # # # # # # # # 12
#. Se/0+&t, # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # 1
. COMPONENTS 15
.#1 !%'% "&+t0% M%/$&ne!"M3 # # # # # # # # # # # # # #
# # # # # # # 15
.#2 RAM # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # 16
.# ROM # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # 16
.#. Re% T&e Co/4 # # # # # # # # # # # # # # # # # # # # # #
# # # # # # 1
.#5 IB0tton # # # # # # # # # # # # # # # # # # # # # # # # # #
# # # # # # # 1
.#5#1 T,*es o7 I80tton # # # # # # # # # # # # # # # # # # # # #
# # # 2
.#6 1-W&+e Inte+7%/e # # # # # # # # # # # # # # # # # # # #
# # # # # # # # # 22
.# Te: R0nt&e En'&+onent TRTE3 # # # # # # # # # # # # #
# # # # 2.
5 WORKING O; !A"A RING 26
6 APPLICATIONS 2
AD"ANTAGES AND DISAD"ANTAGES
#1 A
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L&st o7 ;&(0+es
1#1 P+otot,*e o7 st%&ness stee >%'% +&n( # # # # # #
# # # # # # # # # # # #
.#1 Inte+n% /onst+0/t&on o7 t$e &B0tton # # # # # # # #
# # # # # # # # # # 1
.#2 Co*onents o7 t$e DS195.B C+,*to &B0tton # # # # # # # #
# # # # # 1
.# D&77e+ent t,*es o7 &B0ttons %'%&%8e &n t$e
%+4et # # # # # # # # # # 19.#. D&77e+en/e t,*es o7 80e
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ABSTRACT
A !%'% R&n( &s % 7&n(e+ +&n( t$%t /ont%&ns %
s% &/+o*+o/esso+ ?&t$
80&t-&n/%*%8&&t&es 7o+ t$e 0se+@ % so+t o7 s%+t
/%+< t$%t &s ?e%+%8e on % 7&n(e+# S0nM&/+os,ste !%'%
R&n( ?%s &nt+o
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C$%*te+ 1
INTRODUCTION-APORTABLE WEARABLECOMPUTER
It sees t$%t e'e+,t$&n( ?e %//ess to
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T$&s o8&e /o*0te+ /%n 8e/oe e'en o+e se/0+e# =o0 /%n
4ee* t$e &B0tton
?&t$ ,o0 ?$e+e'e+ ,o0 (o 8, ?e%+&n( &t %s % /ose,
(0%+
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;&(0+e 1#1 P+otot,*e o7 st%&ness stee >%'%
+&n(11
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C$%*te+ 2
HISTORICAL BACKGROUND
In t$e s0e+ o7 199@ D%%s Se&/on
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D%t% /%n 8e +e%< 7+o o+ ?+&tten to t$e eo+, se+&%,
t$+o0($ % s&*e %n%'% %n(0%(e %n< t+%ns%tes t$e 8,te /o%'%
+&n( '&% +&n( +e%
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.#2 RAM
!%'% +&n( /ont%&ns 1.48 o7 Non-"o%t&e R%n
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/o/4 %t % /onst%nt %n< ?e-/ont+oe< 7+e0en/, t$%t &s
&n
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;&(0+e .#1 Inte+n% /onst+0/t&on o7 t$e &B0tton11
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;&(0+e .#2 Co*onents o7 t$e DS195.B C+,*to &B0tton15
.#5 IB0tton
T$e >e?e o7 t$e >%'% +&n( &s t$e >%'%
&B0tton #It /ont%&ns one &&on
t+%ns&sto+*+o/esso+ s&n(e /$&* t+0ste<
&/+o*+o/esso+ ?&t$ *o?e+70 !%'% "&+t0% M%-/$&ne!"M3
$o0se< &n +0((e< %n< se/0+e st%&ness stee /%se#
T$e C+,*to &B0tton$%+
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An &B0tton &s % &/+o/$&* s&&%+ to t$ose
0se< &n s%+t /%+< 80t $o0se< &n % +o0n
