!5'
.O
Development of Intruder Detection System
that Uses Radio Waves
+LUR\XNL7VXML
Quantum Receiver beyond the Limit of
Optical Communication Technology
−The first evidence exceeding the Bit Error Rate Limit of
coherent optical communication−
0DVDKLUR7DNHRND
AssisTra: A Sightseeing Guidance
System with Spoken Dialogue Interface
−Toward a system that can provide easy access
to necessary information through natural speech−
7HUXKLVD0LVX ／ (WVXR0L]XNDPL ／ +LGHNL.DVKLRND ／
+LVDVKL.DZDL ／ 7DPRWVX6KLUDGR
● 7RSLFV
Report on NICT’s 2011 Facility Open House
Advanced ICT Research Institute (Kobe)
ー Experience the future of information and communications!! ー
Kashima Space Technology Center
ー Radio Waves and Satellite Connect Earth and Space ー
Prize Winners
Received Certificate of Appreciation
from Tokyo Fire Department
−For the contribution of WINDS to emergency aid efforts
after the Great East Japan Earthquake−
Development of Intruder
Detection System that
Uses Radio Waves
+LUR\XNL7VXML
3ENIOR2ESEARCHER3PACE#OMMUNICATION3YSTEMS,ABORATORY7IRELESS.ETWORK2ESEARCH)NSTITUTE
!FTERCOMPLETINGADOCTORALCOURSEINENGINEERING4SUJIJOINED#OMMUNICATIONS2ESEARCH,ABORATORY
-INISTRYOF0OSTSAND4ELECOMMUNICATIONSCURRENTLY.)#4IN(EMAINLYHASBEENRESEARCHING
ANTENNAARRAYSIGNALPROCESSINGANDAIRCRAFTCOMMUNICATIONSSYSTEMS(EISALSOAGUESTPROFESSORAT
THE'RADUATE3CHOOLOF9OKOHAMA.ATIONAL5NIVERSITY0H$%NGINEERING
Introduction
:LWKJURZLQJDWWHQWLRQWRVHFXULW\PRUHDQGPRUHSHRSOHDUH
LQVWDOOLQJVHFXULW\V\VWHPVLQWKHLUKRPHV7KHPRVWFRPPRQ
ZD\WRGHWHFWDQLQWUXVLRQRUDQHYHQWVXFKDVWKHRSHQLQJRU
FORVLQJRIZLQGRZVDQGGRRUVLVWRLQVWDOODS\URHOHFWULFLQIUDUHG
VHQVRURUGRRUVHQVRUIRUHDFKLQWUXVLRQURXWHRUREMHFW,WLV
WURXEOHVRPHKRZHYHUWRLQVWDOOVHQVRUVRQDOOZLQGRZVDQG
WKHUHLVWKHGRZQVLGHWKDWRWKHUXQH[SHFWHGLQWUXVLRQURXWHVRU
REMHFWVZRQ· WEHGHWHFWHG
:LWKWKHKHOSRIUDGLRZDYHV1,&7KDVGHYHORSHGDQHZW\SH
RILQWUXGHUGHWHFWLRQV\VWHPWKDWFDQPRQLWRUDQHQWLUHXQRFFX
SLHGVSDFHDWQLJKWDQGGXULQJKROLGD\V2QO\RQHV\VWHPQHHGV
WREHLQVWDOOHGLQHDFKURRP³VHSDUDWHVHQVRUVIRUHDFKZLQGRZ
DQGLQWUXVLRQURXWHDUHQRWUHTXLUHG7KLVQHZVHFXULW\V\VWHP
DOVRKDVQRQHRIWKHGUDZEDFNVRIWUDGLWLRQDOLQIUDUHGVHQVRUV
ZKLFKVXIIHUIURPLQFRQVLVWHQWGHWHFWLRQDQGFDQQRWGHWHFW
REMHFWVEHKLQGRWKHUREMHFWV
Where the Idea Came from
― Learning from Mistakes ―
,WDOOVWDUWHGIURPWKHXQH[SHFWHG$ERXWILYH\HDUVDJR,ZDV
WU\LQJWRPDNHDSUHFLVHHVWLPDWHRIWKHSRVLWLRQRIWKHLQGRRU
VRXUFHRIUDGLRZDYHVXVLQJPXOWLSOHDQWHQQDVDUUDQJHGLQWKH
VSDFHKHUHLQDIWHUUHIHUUHGWRDVDQDQWHQQDDUUD\,ZDVZRUNLQJ
ZLWKDVWXGHQWIURP.HLR8QLYHUVLW\ZKRZDVDWUDLQHHDWWKDW
WLPH7KLVZDVDOVRWKHUHVHDUFKWKHPHRIKLVJUDGXDWLRQZRUN
7KLVWHFKQRORJ\FDQEHXVHGDVDEDVLFWHFKQRORJ\IRUKLJKVSHHG
ZLUHOHVVWUDQVPLVVLRQDQGSRVLWLRQPDQDJHPHQW:HUHSHDWHGO\
H[DPLQHGWKHVHYHUDOPHWKRGVDQGFRQGXFWHGH[SHULPHQWVDJDLQ
DQGDJDLQEXWZHZHUHKDYLQJDKDUGWLPHLQDFKLHYLQJJRRG
UHVXOWV2QHRIWKHUHDVRQVIRUDOOWKHVHIDLOXUHVZDVWKDWDQ\OLWWOH
PRYHPHQWRIWKHIXUQLWXUHRUWKHRSHQLQJRIDGRRUFKDQJHGKRZ
WKHUDGLRZDYHVSURSDJDWHGDQGWKHFKDQJHVVLJQLILFDQWO\
DIIHFWHGWKHUHVXOWV2QHGD\QHDUWKHHQGRIWKH\HDULWRFFXUUHG
WRPHWKDWLIWKHPHWKRGZHKDGEHHQH[DPLQLQJZDVVRVHQVLWLYH
WRFKDQJHVLQWKHHQYLURQPHQWRIDURRPPD\EHZHFRXOGXVH
WKLVPHWKRGDVDVHQVRUIRUVHFXULW\SXUSRVHVUDWKHUWKDQIRU
GHWHFWLQJDSRVLWLRQ2Q&KULVWPDV(YHZHFRQGXFWHGH[SHUL
PHQWVWRYHULI\WKHLGHD7KHUHVXOWVZHUHEHWWHUWKDQH[SHFWHG
:HFRQILUPHGWKDWE\LQVWDOOLQJDQWHQQDVIRUWUDQVPLVVLRQDQG
1
NICT NEWS 2011. 8
UHFHSWLRQLQMXVWRQHDUHDRIDURRPWKHRSHQLQJRUFORVLQJRID
GRRUPRYHPHQWRIDSHUVRQRUVKLIWRIWKHIXUQLWXUHFRXOGEH
GHWHFWHGZLWKRXWIDLO7KLVZDVWKHEHJLQQLQJRIWKHV\VWHP· V
GHYHORSPHQW$VDQDVLGHWKHVWXGHQWZDVDEOHWRJUDGXDWH
DOWKRXJKKHKDGWRFKDQJHWKHWKHPHRIKLVJUDGXDWLRQWKHVLVDW
WKHODVWPLQXWH
How the Security System and
Antenna Array Work
/HWPHEULHIO\H[SODLQWKHZRUNLQJSULQFLSOHRIWKHV\VWHP$V
VKRZQLQ)LJXUHDWUDQVPLWWHUWKDWHPLWVUDGLRZDYHVLVSODFHG
LQRQHORFDWLRQLQDURRPDQGDUHFHLYHUZLWKDQDQWHQQDDUUD\LQ
DQRWKHUORFDWLRQ7KHUDGLRZDYHVUDGLDWHLQDOOGLUHFWLRQVIURP
WKHWUDQVPLWWHUDQGDUHUHIOHFWHGRUDEVRUEHGE\WKHIORRUFHLOLQJ
ZLQGRZVIXUQLWXUHDQGRWKHUREMHFWVIROORZLQJFRPSOLFDWHG
URXWHVEHIRUHDUULYLQJDWDUHFHSWLRQSRLQW7KHVHFRPSOLFDWHG
URXWHVDUHWKHNH\WRWKLVV\VWHP7KHDQWHQQDDUUD\DWWKHUHFHS
WLRQSRLQWXOWLPDWHO\ZLOOUHFHLYHLQFLGHQWUDGLRZDYHVIURPDOO
GLUHFWLRQV,IVRPHHYHQWRFFXUVLQWKHURXWHVEHWZHHQWKHWUDQV
PLWWHUDQGUHFHSWRUVXFKDVDQLQWUXVLRQRUWKHRSHQLQJRID
ZLQGRZWKHWUDQVPLWWLQJSDWWHUQRIWKHUDGLRZDYHVFKDQJHV7KLV
FKDQJHLVWUDQVODWHGDWWKHUHFHSWLRQSRLQWDVQRWRQO\DFKDQJHLQ
WKHUHFHSWLRQLQWHQVLW\EXWDOVRDVDFKDQJHLQWKHLQFLGHQWDQJOHV
RIWKHUDGLRZDYHV7KHV\VWHPGHWHFWVDQHYHQWEHFDXVHWKH
DQWHQQDDUUD\GHWHFWVDVSDWLDOFKDQJHLQWKHLQFLGHQFHSDWWHUQRI
UDGLRZDYHV$SUHYLRXVPHWKRGGHWHFWHGDFKDQJHLQWKHUHFHS
WLRQLQWHQVLW\DWDUHFHSWLRQSRLQWXVLQJRQO\RQHDQWHQQDEXWWKH
PHWKRGZDVQHYHUSXWLQWRSUDFWLFDOXVHEHFDXVHPLQRUYDULDWLRQV
LQDWUDQVPLWWHURUWULYLDOFKDQJHVLQDURRPDOWHUHGWKHUHFHSWLRQ
LQWHQVLW\DQGRIWHQUHVXOWHGLQIDOVHGHWHFWLRQV2QWKHRWKHUKDQG
WKLVQHZPHWKRGLQFRUSRUDWHVDQDQWHQQDDUUD\WKDWGHWHFWVKRZ
UDGLRZDYHVDUHWUDYHOOLQJVSDWLDOO\VRGHWHFWLRQLVPRUHUHOLDEOH
,QWKHFRPPXQLFDWLRQVILHOGWKHFRPSOLFDWHGUHIOHFWLRQRIUDGLR
ZDYHVFDOOHGPXOWLSDWKJHQHUDOO\KDVEHHQDPDMRUQXLVDQFH
EHFDXVHLWPD\GHJUDGHFRPPXQLFDWLRQVTXDOLW\7KLVV\VWHP
KRZHYHUWDNHVDGYDQWDJHRIPXOWLSDWKDQGLVDEOHWRGHWHFW
HYHQWVWKDWRFFXUEHKLQGREMHFWV
＊ Recently, a method that improves communications speed and quality
was developed using an antenna array in a multipath environment.
This new method is now used by wireless LAN and other products.
Transmitter
Reflected Radio Waves
（for illustration purpose only）
Array Antenna Receiver
Figure 1●Mechanism of Security System Incorporating Antenna Array
USB
Transmitting
Interface
Antenna
Receiving
Antenna
Threshold
$WILUVWZHFRQGXFWHGH[SHULPHQWVDQGHYDOXDWLRQVRIWKLV
V\VWHPE\FREEOLQJWRJHWKHUH[LVWLQJHTXLSPHQW%HVLGHVEHLQJ
YHU\ODUJHWKHHTXLSPHQWZDVKDUGWRKDQGOHDQGWKHHIIHFWKDUGWR
VHHEHFDXVHZHFKRVHWRDQDO\]HWKHGDWDDIWHUFROOHFWLQJLW6RZH
UHYLHZHGWKHVWUXFWXUHRIWKHV\VWHPDQGFRQWULYHGDQRWKHUPHWKRG
IRUVLJQDOSURFHVVLQJ$VDUHVXOWZHZHUHDEOHWRUHGXFHWKHVL]H
RIWKHHTXLSPHQWDQGGHYHORSHGHYHQWGHWHFWLRQHYDOXDWLRQHTXLS
PHQWWKDWFDQSURFHVVGDWDLQUHDOWLPHXVLQJDFRPSDFWPLFURSUR
FHVVRU)LJXUHVKRZVWKHHTXLSPHQW7KHHTXLSPHQWLQWHJUDWHVD
WUDQVPLWWHUDQGDUHFHSWRUDQGLQFRUSRUDWHVSURFHVVLQJHTXLSPHQW
WRGHWHFWDQHYHQW7KLVHTXLSPHQWLVFRQQHFWHGWRDQWHQQDV7KH
V\VWHPHPLWVDQDXGLEOHDOHUWZKHQDQHYHQWRFFXUVVXFKDVDQ
LQWUXVLRQRUWKHRSHQLQJRUFORVLQJRIDZLQGRZ7KHHTXLSPHQW
DOVRKDVD86%SRUWIRUFRQQHFWLQJWKHHTXLSPHQWWRD3&DOORZ
LQJWKHUHFRUGHGGDWDDQGRWKHUGHWDLOHGLQIRUPDWLRQWREHYLHZHG
DQGDQDO\]HGLQYDULRXVZD\V,QWKHIXWXUHLWZLOOEHSRVVLEOHWR
PDNHWKHHTXLSPHQWDVVPDOODVDFHOOSKRQHVLQFHWKHVWUXFWXUHRI
WKHKDUGZDUHLVVLPSOHUWKDQWKDWRIDFHOOSKRQH
WKHURRPE\RSHQLQJWKHGRRUDW7LPH$VWDUWHGZDONLQJDURXQGLQ
WKHURRPDW7LPH%VWRSSHGIRUDZKLOHDW7LPH&DQGOHIWWKH
URRPDW7LPH'$VVKRZQLQ)LJXUHWKHTXDQWLILHGUHVXOWVDORQJ
WKHYHUWLFDOD[LVUHPDLQHGFORVHWRZKHQWKHUHLVQRHYHQWKDS
SHQLQJEXW\RXZLOOVHHWKHYDOXHVFKDQJHGZKHQWKHGRRULV
RSHQHGDW7LPH$DQGZKHQWKHSHUVRQPRYHGDERXWWKHURRPDW
7LPH%7KHHTXLSPHQWVHWVDSSURSULDWHWKUHVKROGVIRUWKRVH
YDOXHVDQGRQFHWKHYDOXHVH[FHHGWKHWKUHVKROGVDEX]]HUVRXQGV
WRVLJQDOWKDWDQHYHQWKDVRFFXUUHG%\DGMXVWLQJWKHWKUHVKROGV
WKHGHWHFWLRQVHQVLWLYLW\FDQEHRSWLPL]HG7KHYDOXHVUHWXUQHGWR
]HURRQFHWKHSHUVRQKDVOHIWWKHURRPDQGFORVHGWKHGRRU&RP
SDULQJWKHTXDQWLILHGUHVXOWVDORQJWKHYHUWLFDOD[LVDIWHUWKHSHUVRQ
OHIWWKHURRPZLWKWKHYDOXHVDW7LPH&ZKHQWKHSHUVRQVWRSV
PRYLQJLQWKHURRP\RXFDQWHOOWKDWWKLVV\VWHPQRWRQO\FDQ
GHWHFWWKHPRYHPHQWRISHRSOHLQDURRPEXWDOVRWKHLUSUHVHQFH
Change rate
Development of Real-time Event
Detection Evaluation Equipment
Elapsed time
Figure 3●Example of Event Detection Results
Conclusion and Future Development
200 mm
Figure 2●Real-time Event Detection Evaluation Equipment
Event Detection by Evaluation Equipment
7KLVLVDQH[DPSOHRIHYHQWGHWHFWLRQXVLQJWKHHYDOXDWLRQ
HTXLSPHQW)LJXUHVKRZVWKHGHWHFWLRQUHVXOWVZKHQVRPHRQH
RSHQVDGRRUDQGHQWHUVDURRP7KHKRUL]RQWDOD[LVLVWKHWLPHOLQH
DQGWKHYHUWLFDOD[LVLVWKHTXDQWLILHGUHVXOWVRIWKHFKDQJHV
REWDLQHGE\WKHPHWKRG7KLVFKDUWVKRZVWKDWVRPHRQHHQWHUHG
7KHGHYHORSHGV\VWHPKDVPDGHLWSRVVLEOHWRPRQLWRUDQ
HQWLUHURRPMXVWE\LQVWDOOLQJDVLQJOHV\VWHPLQWKHURRP7KH
V\VWHPFDQGHWHFWDQHYHQWHYHQZKHQWKHHYHQWWDNHVSODFH
EHKLQGDQREMHFWSRVLWLRQHGEHWZHHQWKHWUDQVPLWWHUDQGWKH
UHFHSWRU$VWKHHTXLSPHQWLVVLPSOHDQGHDV\WRLQVWDOOLWFDQEH
XVHGWRJHWKHUZLWKDFXUUHQWDODUPV\VWHP$VZHOODVGHWHFWLQJ
WKHPRYHPHQWRUSUHVHQFHRISHRSOHLQDURRPDQGFKDQJHVLQWKH
DUUDQJHPHQWRIWKHIXUQLWXUHWKHV\VWHPFDQGHWHFWPLVSODFHG
REMHFWV7KLVV\VWHPWKDWXVHVUDGLRZDYHVDOVRFDQEHLQVWDOOHG
ZKHUHPRWLRQVHQVRUHTXLSSHGFDPHUDVFDQQRWVXFKDVLQEDWK
URRPV7KHUHIRUHWKHV\VWHPPD\KDYHDYDULHW\RIDSSOLFDWLRQV
LQWKHIXWXUH)RUWKHWLPHEHLQJZHDUHDLPLQJWRSXWWKHV\VWHP
LQWRSUDFWLFDOXVHZKLOHIXUWKHULPSURYLQJWKHGHWHFWLRQPHWKRG
VRWKDWLWFDQGHWHFWHYHQWVZLWKJUHDWHUFRQVLVWHQF\DQGDFFXUDF\
NICT NEWS 2011. 8
2
Quantum Receiver beyond the Limit
of Optical Communication Technology
−The first evidence exceeding the Bit Error Rate Limit
of coherent optical communication−
0DVDKLUR7DNHRND
$EPUTY$IRECTOR2ESEARCHAND$EVELOPMENT/FFICE'LOBAL)#43TRATEGY"UREAU-INISTRYOF
)NTERNAL!FFAIRSAND#OMMUNICATIONS
-ASAHIRO4AKEOKARECEIVEDTHE0H$DEGREEINANDTHENJOINED#OMMUNICATIONS2ESEARCH
,ABORATORYCURRENTLY.)#4TOWORKONQUANTUMINFORMATION THEORY ANDEXPERIMENTANDQUANTUM
OPTICS(EISCURRENTLYTRANSFEREDTOTHE-INISTRYOF)NTERNAL!FFAIRSAND#OMMUNICATIONS
Introduction
7KHSHUIRUPDQFHRIRSWLFDOFRPPXQLFDWLRQVLVGHWHUPLQHGE\
WKHELWHUURUUDWH%(5DWWKHGHWHFWLRQRIGLJLWDOVLJQDOVDQGWKH
DELOLW\RIVXEVHTXHQWHUURUFRUUHFWLRQ7KHELWHUURUUDWHFDQEH
ORZHUHGE\HOLPLQDWLQJWKHQRLVHWKDWPD\RFFXUDWWKHOLJKW
VRXUFHDQGUHFHLYHUEXWWKHUHLVXQDYRLGDEOHQRLVHHYHQLQSULQ
FLSOHFDOOHGTXDQWXPQRLVHVHH)LJXUH4XDQWXPQRLVH
GHULYHVIURPTXDQWXPXQFHUWDLQW\RQHRIWKHEDVLFSULQFLSOHVRI
TXDQWXPPHFKDQLFV7KHELJJHUWKHWUDQVPLVVLRQORVVLQDFRP
PXQLFDWLRQVFKDQQHODQGWKHKLJKHUWKHVLJQDOGHQVLW\EHFRPH
WKHELJJHUWKHHIIHFWDSSHDUV7UDGLWLRQDORSWLFDOFRPPXQLFDWLRQV
WKHRU\UHJDUGVTXDQWXPQRLVHDVXQFRQWUROODEOH(YHQXVLQJWKH
PRVWDGYDQFHGFRKHUHQWRSWLFDOFRPPXQLFDWLRQVPHWKRGV
UHVHDUFKHGDQGGHYHORSHGDW1,&7DQGWKHZRUOGRYHUWKHQRLVH
FDOOHGWKHVKRWQRLVHKDVEHHQWKRXJKWLPSRVVLEOHWRFLUFXPYHQW
Quantum Noise in Optical
Communications
Shorter distance between
signals makes the impact of
quantum noise more noticeable
Attenuation
Quantum
Noise
UHFHLYHGE\WKHLUGLUHFWGHWHFWLRQ$FFRUGLQJWRFXUUHQWRSWLFDO
FRPPXQLFDWLRQVWKHRU\ZKLFKFRQVLGHUVTXDQWXPQRLVHDVQRUPDO
QRLVHWKLVLVDQRSWLPXPGHWHFWLRQPHWKRG7KHOLPLWRQWKHELW
HUURUUDWHLVFDOOHGWKH6KRW1RLVH/LPLWRU6WDQGDUG4XDQWXP
/LPLWDQGLVFRQVLGHUHGWRVLJQLILFDQWO\UHVWULFWFRPPXQLFDWLRQV
SHUIRUPDQFHHVSHFLDOO\ZKHQWKHRSWLFDOVLJQDOVDUHYHU\ZHDN
7RRYHUFRPHWKHOLPLWLWLVQHFHVVDU\WRFRQWURODQGGHWHFWWKH
TXDQWXPQRLVHDWWKHPLFUROHYHO$FFRUGLQJWRWKHTXDQWXP
PHFKDQLFVWKDWGHVFULEHVPLFURZRUOGSK\VLFVVXFKDVWKHDWRPWKH
VWDWHRIPDWWHULVH[SUHVVHGE\DZDYHIXQFWLRQ:HZRQ· WGHYRWH
SDJHVKHUHWRGHVFULEHZKDWDZDYHIXQFWLRQLVEXWWKHLPSRUWDQW
SRLQWLVWKDWWKHVWDWHORRNVVLJQLILFDQWO\GLIIHUHQWGHSHQGLQJRQKRZ
LWLVPHDVXUHG,QRWKHUZRUGVZHFDQQRWVHHWKHHQWLUHSLFWXUHRI
PDWWHUZDYHIXQFWLRQZLWKMXVWRQHPHDVXUHPHQW5DWKHUZHFDQ
RQO\PHDVXUHIUDJPHQWDU\LQIRUPDWLRQIURPWKHGLUHFWLRQZHVHHLW
MXVWOLNHDVKDGRZSLFWXUHVHHXSSHUOHIWILJXUHVLQ)LJXUH,QWKH
FDVHRIRSWLFDOFRPPXQLFDWLRQVPHDVXUHPHQWRIWKHLQWHUIHUHQFHLQ
WKHVLJQDOVVKRZVWKHFKDUDFWHULVWLFVRIWKHSKDVHDVDZDYH0HD
VXUHPHQWRIWKHHQHUJ\VKRZVWKHFKDUDFWHULVWLFVRIWKHLQWHQVLW\
LHWKHQXPEHURISKRWRQV7KHHIIHFWRITXDQWXPQRLVHORRNV
GLIIHUHQWIRUHDFKPHDVXUHPHQWEXWLQERWKFDVHVWKHVKRWQRLVH
OLPLWLVLPSRVHGRQVLJQDOLGHQWLILFDWLRQ
Figure 1●Quantum Noise in Optical Communications
Measurement of Wave Function（Quantum State of Light）
Identification Limit of Optical Signal and
Quantum Measurement
,QFXUUHQWRSWLFDOFRPPXQLFDWLRQVLQIRUPDWLRQLVWUDQVPLWWHG
E\PRGXODWLQJWKHLQWHQVLW\DQGRUSKDVHRIODVHUOLJKWDQGLV
Optimum Quantum
Measurement
Wavefunction of
Optical Signal
Wavefunction of
Optical Signal
When measuring the phase
amplitude of light waves
When measuring
light energy（photon）
（Quantum noise will appear in
the gauss distribution
in the amplitude）
（Quantum noise will appear as
fluctuation in Poisson distribution
of the number of photons)
Depending on the method of measure
（pojnt of view）, the state looks different.
Bit Error Rate
2QWKHRWKHUKDQGZKHQWKHODVHUZDVLQYHQWHGLQWKH·V
SLRQHHULQJWKHRUHWLFDOUHVHDUFKZDVXQGHUZD\WRFRPELQHRSWLFDO
FRPPXQLFDWLRQVDQGTXDQWXPPHFKDQLFVTXDQWXPFRPPXQLFD
WLRQVWKHRU\7KHWKHRU\KDVLQGLFDWHGWKDWFRQWUROOLQJWKHTXDQ
WXPQRLVHGXULQJVLJQDOGHWHFWLRQPLJKWUHGXFHWKH%(5$WWKDW
WLPHKRZHYHURSWLFDOFRPPXQLFDWLRQVWHFKQRORJ\ZDVQRWIXOO\
GHYHORSHGDQGWKHUHVHDUFKFRXOGQRWULVHDERYHWKHOHYHORI
EDVLFWKHRU\7DNLQJDGYDQWDJHRIUHFHQWSURJUHVVLQOLJKWGHWHF
WLRQWHFKQRORJ\DQGTXDQWXPLQIRUPDWLRQVFLHQFH1,&7KDVSXU
VXHGLWVUHDOL]DWLRQDQGRYHUFRPHWKHVKRWQRLVHOLPLWLQFRKHUHQW
RSWLFDOFRPPXQLFDWLRQVIRUWKHILUVWWLPHLQWKHZRUOG7KLV
DUWLFOHEULHIO\GHVFULEHVRXUUHVHDUFK
Optimum Quantum
Measurement
Measurement from the angle
that best reduces the impact
of quantum noise
Shot Noise Limit
Quantum
Limit
Quantum optimization of the
measurement has exponentially
improved the bit error rate!
Number of Photons in Signal
Bit Error Rate in Coherent Optical Communications
Figure 2●Measurement of Wavefunction（Quantum State of Light）
3
NICT NEWS 2011. 8
Near-optimal Quantum Receiver
Coherent Optical
Transmitter
Quantum Receiver
Photon counting via a
superconducting
transition edge sensor
Bit Error Rate
Experimental results
Shot Noise Limit in
Coherent
Communications
Number of Events Detected
Control waves
0 1 2 3 4 5 6 7 8 9
Count of
Photons Photons
Quadrature amplitude
control with weak
auxiliary light
Bit Bit Error
1
Photon counting
Detection of
0 Signals
Detection of 1 Signals
Bit Error
0
1
2
3
4
5
Number of Photons Detected per Signal
Beat the limit of bit error rate in
coherent communications
Reference Laser Intensity
Figure 3●Near-optimal Quantum Receiver
Development of Quantum Receiver
+RZFDQZHVXUSDVVWKHVKRWQRLVHOLPLW":HFDQWDNHDPHD
VXUHPHQWIURPDQDQJOHWKDWFLUFXPYHQWVPRVWRIWKHLPSDFWRI
TXDQWXPQRLVH7KH4XDQWXP5HFHLYHUKDVEHHQRSWLPL]HGLQ
WHUPVRITXDQWXPPHFKDQLFVWRDFKLHYHWKLVSXUSRVHVHHXSSHU
ULJKWDQGORZHUOHIWILJXUHVLQ)LJXUH,QWKHRU\WKHRSWLPXP
PHDVXUHPHQWFDQEHSHUIHFWO\H[SUHVVHGLQDIRUPXODEXWLWLV
H[WUHPHO\GLIILFXOWWRDFKLHYHWKLVLQWKHUHDOZRUOGEHFDXVHLWLV
QRWMXVWDVLPSOHPHDVXUHPHQWRILQWHQVLW\RUSKDVH1,&7KDV
SURSRVHGDQHZUHFHLYHUVFKHPHWKDWFDQDSSUR[LPDWHWKHRSWL
PXPPHDVXUHPHQWE\FRPELQLQJOLJKWLQWHUIHUHQFHFRQWURORI
ZDYHVDQGSKRWRQGHWHFWLRQPHDVXUHPHQWRISDUWLFOHVVHH
)LJXUH:HDOVREXLOWDTXDQWXPUHFHLYHUWKDWLQFRUSRUDWHVWKH
ODWHVWSKRWRQQXPEHUUHVROYLQJGHWHFWRUVXSHUFRQGXFWLQJWUDQVL
WLRQHGJHVHQVRUGHYHORSHGE\WKH1DWLRQDO,QVWLWXWHRI
$GYDQFHG,QGXVWULDO6FLHQFHDQG7HFKQRORJ\$,67:LWKWKHVH
HIIRUWVZHEHFDPHWKHILUVWWRRYHUFRPHWKHVKRWQRLVHOLPLWLQ
FRKHUHQWRSWLFDOFRPPXQLFDWLRQVE\WUDQVPLWWLQJDQGUHFHLYLQJ
ZHDNVLJQDOVZLWKDQDYHUDJHRISKRWRQV+DOIDFHQWXU\DIWHU
TXDQWXPFRPPXQLFDWLRQWKHRU\SUHGLFWHGDQH[LVWHQFHRIWKH
TXDQWXPUHFHLYHUH[SHULPHQWVILQDOO\SURYHGWKDWWKHWKHRU\ZDV
ULJKW
WRDPLQLPXPWKHOLJKWSRZHUSHUELW%\LQFRUSRUDWLQJTXDQWXP
HUURUFRUUHFWLRQLQWKHTXDQWXPUHFHLYHUZHFDQWKHRUHWLFDOO\
DFKLHYHWKHSK\VLFDOO\DOORZDEOHXOWLPDWHFRPPXQLFDWLRQVFDSDF
LW\ZLWKVLJQDOVRIOLPLWHGHQHUJ\7REXLOGVXFKDTXDQWXP
GHFRGHUZHPXVWFRQWUROWKHZDYHIXQFWLRQRIOLJKWLQDPRUH
IXQGDPHQWDOZD\7RGRWKLVZHQHHGDEUHDNWKURXJKLQH[SHUL
PHQWDOSK\VLFVDQGGHYLFHWHFKQRORJ\1,&7ZLOOFRQWLQXHWR
SURFHHGZLWKWKLVUHVHDUFKVRWKDWZHFDQGHYHORSTXDQWXPFRP
PXQLFDWLRQWHFKQRORJ\LQWRDQLQQRYDWLYHDGYDQFHG,&7WHFKQRO
RJ\WKDWFDQUHVSRQGWRWKHHYHULQFUHDVLQJGHPDQGVIRUODUJHU
FDSDFLW\FRPPXQLFDWLRQVV\VWHPVDQGHQHUJ\VDYLQJVHYHQDIWHU
DFRXSOHRIGHFDGHVVHH)LJXUH
Future of Quantum Detection Technology
Ultra-long Distance
Space Communications
Ultra-high Capacity
Fiber Network
Future Perspective
7KHDFKLHYHPHQWZLOOVXUHO\DGYDQFHEDVLFVFLHQFH2QWKH
RWKHUKDQG\RXPD\ZRQGHULIZHDFWXDOO\QHHGWRFRPPXQLFDWH
ZLWKVXFKZHDNSKRWRQOHYHOVLJQDOV+RZHYHULQDUHFHQW
ILHOGWHVWRIVDWHOOLWHFRPPXQLFDWLRQVWKHQXPEHURISKRWRQVLQ
WKHVLJQDOVWKDWUHDFKHGDUHFHLYHUZHUHRUOHVVDQGZRXOG
EHFRPHLQFUHDVLQJO\ZHDNHULQWKHIXWXUH$WWKHWHUUHVWULDOFRP
PXQLFDWLRQVOHYHODVZHOORSWLFDOVLJQDOVDUHEHFRPLQJVRGHQVH
LQVRPHEDFNERQHQHWZRUNVWKDWWKHRSWLFDOILEHUVPD\VWDUWPHOW
LQJHYHQDVWKHGHPDQGIRUKLJKHUFDSDFLW\FRPPXQLFDWLRQVFRQ
WLQXHVWRLQFUHDVH7KHUHIRUHLWKDVEHFRPHLPSRUWDQWWRUHGXFH
Figure 4●Future of Quantum Detection Technology
NICT NEWS 2011. 8
4
AssisTra: A Sightseeing Guidance
System with Spoken Dialogue Interface
−Toward a system that can provide easy access
to necessary information through natural speech−
7HUXKLVD0LVX
(WVXR0L]XNDPL
% X P E R T 2 E S E A R C H E R 3 P O K E N ,ANGUAGE#OMMUNICATION,ABORA
TORY5NIVERSAL#OMMUNICATION
2ESEARCH)NSTITUTE
% X P E R T 2 E S E A R C H E R 3 P O K E N ,ANGUAGE#OMMUNICATION,ABORA
TORY5NIVERSAL#OMMUNICATION
2ESEARCH)NSTITUTE
!FTERCOMPLETINGADOCTORALCOURSE$R
-ISUJOINED.)#4INASAN%XPERT
2ESEARCHER(EHASBEENSTUDYING
SPOKENLANGUAGEPROCESSINGESPECIALLY
SPOKENDIALOGUESYSTEMS(EWASA
2ESEARCH&ELLOW$#OFTHE*APAN
3OCIETYFORTHE0ROMOTIONOF3CIENCE
FROMTO
!FTERCOMPLETINGADOCTORALCOURSE$R
-IZUKAMISERVEDASANASSISTANTATTHE
'AKUSHUIN5NIVERSITY#OMPUTER#ENTREAND
ASARESEARCHERAT!423POKEN,ANGUAGE
#OMMUNICATION2ESEARCH,ABORATORIESBEFORE
JOINING.)#4IN(EHASBEENSTUDYING
EVALUATIONOFHUMANSYSTEMANDHUMAN
HUMANDIALOGUEANDMUTUALADJUSTMENTIN
COMMUNICATION0H$3CIENCE
+LGHNL.DVKLRND
+LVDVKL.DZDL
7DPRWVX6KLUDGR
$ I R E C T O R 3 P O K E N , A N G U A G E #OMMUNICATION,ABORATORY5NIVER
S A L # O M M U N I C A T I O N 2 E S E A RC H )NSTITUTE
%XECUTIVE2ESEARCHER3POKEN
,ANGUAGE#OMMUNICATION,ABORA
TORY5NIVERSAL#OMMUNICATION
2ESEARCH)NSTITUTE
!FTERCOMPLETINGADOCTORALCOURSE$R
+AWAIJOINED+$$2$,ABORATORIES
CURRENTLY+$$)2$,ABORATORIESIN
ANDRESEARCHEDSPEECHSYNTHESISAND
SPEECHRECOGNITION(EWASTEMPORARILY
ASSIGNEDTO!42INFORFOURYEARSAND
RESEARCHEDANDDEVELOPEDSPEECHSYNTHESIS
SYSTEMS(EHASBEENTEMPORARILYASSIGNED
TO.)#4SINCEANDISSTUDYINGSPEECH
TRANSLATIONTECHNOLOGY0H$%NGINEERING
2ESEARCH-ANAGER0LANNING/FFICE
5NIVERSAL#OMMUNICATION2ESEARCH
)NSTITUTE
!FTERCOMPLETINGAMASTERCOURSE$R
+ASHIOKAJOINED!42(EWASTEMPO
RARILYTRANSFERREDTO.)#4INAND
HIREDIN(EHASBEENSTUDYING
SPOKENLANGUAGEPROCESSINGSPEECH
TRANSLATIONANDSPOKENDIALOGUE(E
ALSOISAGUESTASSOCIATEPROFESSORAT
.ARA)NSTITUTEOF3CIENCEAND4ECHNOL
OGY0H$%NGINEERING
$R3HIRADOJOINEDTHE2ADIO2ESEARCH
,ABORATORY-INISTRYOF0OSTSAND4ELECOM
MUNICATIONSCURRENTLY.)#4IN3INCE
THENHEHASWORKEDIN+AJIMA(IRAISO
+ANSAIAND+EIHANNAANDATTHE)NFORMA
TIONAND#OMMUNICATIONS0OLICY"UREAUOF
THE-INISTRYOF)NTERNAL!FFAIRSAND#OMMUNI
CATIONSTHEN(EISCURRENTLYWORKINGINTHE
0LANNING/FFICEOFTHE5NIVERSAL#OMMUNICA
TION2ESEARCH)NSTITUTE0H$%NGINEERING
Introduction
5
7KHUHVHDUFKJRDOLQWKH6SRNHQ/DQJXDJH&RPPXQLFDWLRQ
/DERUDWRU\RI8QLYHUVDO&RPPXQLFDWLRQ5HVHDUFK,QVWLWXWHLVWR
GHYHORSDQLQIRUPDWLRQV\VWHPWKDWDQ\RQHFDQXVHHDVLO\DQG
QDWXUDOO\:HKDYHEHHQLQYHVWLJDWLQJDQDGYDQFHGGLDORJXHSUR
FHVVLQJWHFKQRORJ\WKDWFDQDFFHSWXVHU·VVSRQWDQHRXVVSHHFK
TXHULHVDQGXQGHUVWDQGDQGHYHQJXHVVWKHLQWHQWLRQRIWKH
GLDORJXHDQGSUHVHQWWKHUHTXHVWHGLQIRUPDWLRQ7RGHPRQVWUDWH
WKHUHVHDUFKUHVXOWDQGFROOHFWGDWDIURPUHDOZRUOGXVDJHZH
UHOHDVHG$VVLV7UDDQDSSOLFDWLRQIRUVPDUWSKRQHVWKDWSURYLGHV
LQIRUPDWLRQIRUWRXULVWVLQ$SSOH·V$SS6WRUHLQ-XQH7KLV
DUWLFOHZLOOEULHIO\LQWURGXFHWKHWKUHHIXQFWLRQVRI$VVLV7UDDQG
H[SODLQWKHVSRNHQGLDORJXHSURFHVVLQJWHFKQRORJ\WKDWPDLQO\LV
XVHGLQ+DQQD·V*XLGH.\RWR
Figure 1●Dialogue Examples from Hanna’s Guide - Kyoto
Three Functions of AssisTra
Spoken Dialogue Processing Technology
・6LJKWVHHLQJ*XLGDQFH6\VWHPZLWK6SRNHQ'LDORJXH,QWHUIDFH
´+DQQD·V*XLGH.\RWRµ
7KLVLVDVSRNHQGLDORJXHV\VWHPWKDWDFFHSWVVSRQWDQHRXV
VSHHFKLQSXWIURPDXVHUDQGUHVSRQGVDSSURSULDWHO\$XVHUFDQ
XVHWKHVSHHFKLQSXWVVKRZQLQ)LJXUHWRUHWULHYHYDULRXVNLQGV
RILQIRUPDWLRQKHOSIXOIRUVLJKWVHHLQJLQ.\RWRVXFKDVWRXULVW
VSRWVDQGUHVWDXUDQWV
・7RXULVW,QIRUPDWLRQ$SSOLFDWLRQLQ0XOWLSOH/DQJXDJHV´.\R7UDµ
7KHDSSOLFDWLRQSURYLGHVWH[WLQIRUPDWLRQXVHIXOIRUVLJKWVHH
LQJLQIRXUODQJXDJHV-DSDQHVH(QJOLVK&KLQHVHDQG.RUHDQ
7KHV\VWHPFDQVHDUFKDQGGLVSOD\SRSXODUWRXULVWVSRWVLQ.\RWR
DQGDOVRWKHQHDUHVWWRXULVWVSRWVDERXWKLWVIURPDXVHU·V
FXUUHQWORFDWLRQDORQJZLWKGLUHFWLRQVIURPWKHFXUUHQWORFDWLRQ
WRWKHGHVLUHGGHVWLQDWLRQ
・7UDYHO5HFRUG$SSOLFDWLRQ´7UD0HPRµ
7KHV\VWHPDOORZV\RXWRUHFRUGSLFWXUHVDQGQRWHVYRLFHRU
WH[WDQGOLQNWKHPWRDSRVLWLRQRQDQHOHFWURQLFPDS
*HQHUDOO\DVSRNHQGLDORJXHV\VWHPKDVWKHVWUXFWXUHVKRZQLQ
)LJXUH,WFRPSULVHVILYHPDLQPRGXOHVVSHHFKUHFRJQLWLRQ
VSRNHQODQJXDJHXQGHUVWDQGLQJGLDORJXHPDQDJHPHQWVSRNHQ
ODQJXDJHJHQHUDWLRQDQGVSHHFKV\QWKHVLV$OORIWKHPRGXOHVLQ
+DQQD·V*XLGH.\RWRZHUHGHYHORSHGLQRXUODERUDWRU\
6SHHFKUHFRJQLWLRQDQGVSHHFKV\QWKHVLVKDYHHPSOR\HGDVWDWLVWLF
PHWKRGEDVHGRQWKH+LGGHQ0DUNRY0RGHO+00%\XWLOL]LQJD
KXJHDPRXQWRIWRXULVWGLDORJXHGDWDGHVFULEHGKHUHLQDIWHUWRFRQ
VWUXFWDPRGHOVSHFLDOL]HGLQSURYLGLQJWRXULVWLQIRUPDWLRQWKH
V\VWHPKDVDFKLHYHGDKLJKOHYHORIVSHHFKUHFRJQLWLRQSHUIRUPDQFH
DQGSURYLGHVDQDWXUDOV\QWKHVL]HGVSHHFKDVLIWKHPDFKLQHLVDFWX
DOO\WDONLQJWRDXVHU,QDGGLWLRQZHKDYHFROOHFWHGDQGVRUWHGPDQ\
RXWSXWVHQWHQFHVIURPSURIHVVLRQDOJXLGHVWRGHVFULEHYDULRXVWRXULVW
VSRWVLQFOXGLQJGHVFULSWLRQVRIFKHUU\EORVVRPVWKHDXWXPQFRORURI
OHDYHVDQGVRRQDVWH[W
,QWKLVDUWLFOHZHZLOOGHVFULEHDQRXWOLQHRIWKHVSRNHQ
ODQJXDJHXQGHUVWDQGLQJDQGGLDORJXHPDQDJHPHQWWHFKQRORJLHV
HPSOR\HGLQ+DQQD·V*XLGH.\RWR
NICT NEWS 2011. 8
Please tell me
about Hirano Shrine.
How do I get
there?
Every year at
Hirano Shrine, in
the cherry blossom
viewing season...
Let me show you
how to get to
Hirano Shrine from
Kyoto Station.
Waveform of User s
Speech
Speech
Recognition
Waveform of
Synthesized Voice
Speech
Tourist
Information
Dictionary
Speech
Synthesis
Let me show you how to get to
Kinkakuji from Kyoto Station.
How do I get there?
Spoken
Language
Understanding
Tourist
Information
Database
WFSTDM
Request :
Access Information
Spoken
Language
Generation
Present Information:
How to get there (from Kyoto
Station to Kinkakuji)
Dialogue
Management
(Context
Processing) Dialogue Models of
Tourist Information
Spoken Dialogue System
NICT s latest achievement
Data need to create a new service
for a different tourist location
Figure 2●Structure Diagram of Spoken Dialogue System
・6SRNHQ/DQJXDJH8QGHUVWDQGLQJ
7KHZD\VRIH[SUHVVLQJVRPHWKLQJYDU\ZLWKWKHSHUVRQDQG
WKHVLWXDWLRQ)RUH[DPSOHDXVHUZKRZDQWVWRNQRZKRZWRJHW
WRDWRXULVWVSRWE\EXVPLJKWH[SUHVVWKDWLQWHQWLRQXVLQJRQHRI
WKHH[DPSOHVLQ)LJXUH7KHVDPHPHDQLQJKRZHYHUFDQEH
FRQYH\HGLQDYDULHW\RIZD\V,WLVQRWVRGLIILFXOWIRUDKXPDQWR
XQGHUVWDQGDVSHDNHU· VLQWHQWLRQZKHQH[SUHVVHGLQYDULRXV
IRUPVEXWIRUDFRPSXWHUWRXQGHUVWDQGLWWKHYDULRXVH[SUHVVLRQV
PXVWEHFRQYHUWHGLQWRWKHVDPHV\PERO7KLVLVWKHIXQFWLRQRI
VSRNHQODQJXDJHXQGHUVWDQGLQJ
7RUHDOL]HWKLVIXQFWLRQWKHYDULRXVH[SUHVVLRQVWKDWXVHUV
DFWXDOO\XVHPXVWEHFROOHFWHG$WWKHVDPHWLPHDQDOJRULWKPIRU
VSRNHQODQJXDJHXQGHUVWDQGLQJPXVWEHGHYHORSHG7RFROOHFWWKH
ZRUGLQJDFWXDOO\XVHGLQFRQYHUVDWLRQVZHUHFRUGHG
GLDORJXHVIURPKRXUVRIFRQYHUVDWLRQVEHWZHHQSURIHVVLRQDO
VLJKWVHHLQJJXLGHVDQGSHRSOHSRVLQJDVWRXULVWV7KHFROOHFWLRQLV
SUHWW\ODUJHFRPSDUHGWRWKHZRUOGVWDQGDUGIRUVSRNHQGLDORJXH
GDWDFROOHFWHGLQDVLQJOHVLWXDWLRQ:HDOVREXLOWDSURWRW\SHRID
VSRNHQGLDORJXHV\VWHPDQGFRQGXFWHGDQH[SHULPHQWZLWK
KXPDQVXEMHFWVWRFROOHFWVSRNHQH[SUHVVLRQVLQDUHDOZRUOGVLWX
DWLRQ%DVHGRQWKLVGDWDZHXVHGWKH:HLJKWHG)LQLWH6WDWH
7UDQVGXFHUEDVHG'LDORJ0DQDJHU:)67'0DIUDPHZRUNIRU
VSRNHQODQJXDJHXQGHUVWDQGLQJDQGGLDORJXHFRQWUROGHYHORSHG
E\RXUODERUDWRU\WRFUHDWHDPRGHOIRUVSRNHQODQJXDJHXQGHU
VWDQGLQJEDVHGRQ:)67H[SUHVVLRQV
Expressions used by Users
Symbol
used by Computer
Tell me how to get there.
The route.
Please give me route
information.
Spoken
Language
Understanding
how:to:access
How do I get there?
・'LDORJXH0DQDJHPHQW
(YHQZKHQH[DFWO\WKHVDPHVSHHFKLVLQSXWDXVHU·VLQWHQWLRQ
PD\EHGLIIHUHQWGHSHQGLQJRQWKHVLWXDWLRQRUWKHGLDORJXHKLVWRU\
)RUH[DPSOHOHW·VVD\WKHV\VWHPJHWVWKHLQSXW´7HOOPHKRZWRJHW
WKHUHµ7KLVLQIRUPDWLRQPXVWEHFRPSOHPHQWHGZLWKRWKHULQIRUPD
WLRQVXFKDV´IURPZKHUHWRZKHUHDQGE\ZKLFKWUDQVSRUWDWLRQ
PHDQVµEDVHGRQWKHXVHU·VGLDORJXHULJKWEHIRUHWKHVSHHFK'HWHU
PLQLQJDUHVSRQVHE\FRPSOHPHQWLQJWKHKLGGHQLQWHQWLRQLQWKHVH
VSHHFKHVLVWKHIXQFWLRQRIGLDORJXHSURFHVVLQJ
6XFKGLDORJXHKLVWRU\SURFHVVLQJLVKLJKO\GHSHQGHQWRQWKH
VLWXDWLRQZKHUHDGLDORJXHV\VWHPLVXVHGDQGWKHSXUSRVHIRUD
XVHUWRXWLOL]HWKHV\VWHP:LWKWKDWLQPLQGZHFUHDWHGDPRGHO
IRUKLVWRU\SURFHVVLQJVSHFLDOL]HGLQVLJKWVHHLQJGLDORJXHEDVHG
RQWKHDIRUHPHQWLRQHGODUJHVFDOHGLDORJXHGDWDZKLFKZDV
FROOHFWHGIURPWKHVLWXDWLRQFORVHWRWKHDFWXDOXVHE\DXVHUVR
WKDWWKHV\VWHPFDQSURSHUO\SURFHVVDGLDORJXHKLVWRU\
Conclusion
6LQFHWKHUHOHDVHRIWKHDSSOLFDWLRQZHKDYHEHHQDQDO\]LQJ
WKHFROOHFWHGORJGDWDDQGIRXQGWKDWWKHUHVSRQVHDFFXUDF\RIWKH
V\VWHPQHHGVLPSURYHPHQW:HUHDOL]HGWKDWWKHYDULHW\RI
KXPDQVSHHFKLQWHQWLRQVDQGH[SUHVVLRQVDUHPXFKZLGHUDQG
PRUHFRPSOLFDWHGWKDQZHFRXOGFRYHUXVLQJRXUKRXUVRI
WUDLQLQJGDWD)RUDFRPSXWHUWRDFFXUDWHO\XQGHUVWDQGDSHUVRQ·V
LQWHQWLRQVZHPXVWFRQWLQXHFROOHFWLQJODUJHUYROXPHVRI
GLDORJXHGDWDDQGIXUWKHULPSURYHWKHDFFXUDF\RIVSRNHQ
ODQJXDJHXQGHUVWDQGLQJDQGGLDORJXHKLVWRU\SURFHVVLQJ2XU
IXWXUHZRUNZLOOLQFOXGHUHFRQVWUXFWLRQRIWKHPRGHOVIRUHDFK
PRGXOHE\DGGLQJWKHFROOHFWHGVSHHFKGDWDIURPWKHH[SHULPHQWV
XVLQJWKHV\VWHPZKLOHSURFHHGLQJZLWKUHVHDUFKRQDQDOJRULWKP
WKDWFDQPRUHIOH[LEO\XQGHUVWDQGVSHHFKDQGFRQWUROGLDORJXH
7RH[SDQGWKHXVHRIWKHV\VWHPZHDUHDOVRSODQQLQJWRSUHSDUH
+DQQD·V*XLGH.\RWRLQPXOWLSOHODQJXDJHVVRWKDWLWFDQEH
XVHGWRKHOSIRUHLJQWRXULVWVZKRFRPHWR-DSDQIRUVLJKWVHHLQJ
)XUWKHUPRUHZHLQWHQGWRGHPRQVWUDWHWKHSUDFWLFDOLW\RI
GLDORJXHSURFHVVLQJWHFKQRORJ\E\FRQVWUXFWLQJDVSRNHQ
GLDORJXHV\VWHPWKDWFDQKDQGOHYDULRXVUHDOZRUOGWDVNVVXFKDV
WLFNHWUHVHUYDWLRQVDQGFDOOFHQWHURSHUDWLRQV
Figure 3●Example of Spoken Language Understanding
NICT NEWS 2011. 8
6
Report on NICT ’
s
2011 Facility Open House
Advanced ICT Research Institute（Kobe）
− Experience the future of
information and communications!! −
Saturday, July 30 Number of visitors: 505
:KLOHSOD\LQJTXL]JDPHVYLVLWRUVORRNHGDURXQGWKHHLJKWVLWHVLQWKHIRXUUHVHDUFKEXLOGLQJV,QWKHH[KLELWLRQERRWKVWKH\HQMR\HG
GRLQJH[SHULPHQWVDQGPDNLQJWKLQJVLQFOXGLQJ´PHDVXULQJEUDLQDFWLYLW\µ´FRQGXFWLQJXOWUDORZWHPSHUDWXUHH[SHULPHQWVµ´SRODUL]D
WLRQDQGFRORUFKDQJHH[SHULPHQWVµ´PDNLQJDPLFURVFRSHµDQG´VDPSOLQJ'1$µ7KHDFWLYLWLHVZHUHGHVLJQHGE\HDFKODERUDWRU\7KH
YLVLWRUVDOVRHQMR\HGLQWHUDFWLQJZLWKWKHUHVHDUFKHUVOLVWHQLQJWRWKHLUWDONVDERXWWKHNLQGVRIUHVHDUFKEHLQJGRQHDWWKH$GYDQFHG,&7
5HVHDUFK,QVWLWXWHDQGH[DPLQLQJWKHIDFLOLWLHV
Lecture Meeting by Researchers
7
NICT NEWS 2011. 8
,QWKHIRXUWKUHVHDUFKOHFWXUHPHHWLQJWKUHHUHVHDUFKHUVJDYHVHSDUDWHWDONVDERXWVXSHU
FRQGXFWLYHTXDQWXPGHYLFHVELRPROHFXODUPRWRUVDQGWKHEUDLQ·VPHPRU\7KH\LQWUR
GXFHGWKHLUUHVHDUFKDQGH[SODLQHGWKHFXWWLQJHGJHWHFKQRORJ\XVLQJIDPLOLDUH[DPSOHV
7KHURRPZDVDOPRVWIXOOIRUERWKWKHPRUQLQJDQGDIWHUQRRQOHFWXUHPHHWLQJV7KHDXGL
HQFHHDJHUO\OLVWHQHGWRWKHOHFWXUHVDQGDVNHGVKDUSTXHVWLRQV
NICT held a Facility Open House again this year during the summer holidays for elementary and junior high
school students to give them an opportunity to see what NICT is doing and let them directly experience how
interesting science technology is（We cancelled the planned open house at Koganei headquarters due to the
power shortages this summer）.
Kashima Space Technology Center
− Radio Waves and Satellite
Connect Earth and Space −
Saturday, July 30 Number of visitors: 865
:LWKVRPHRIRXURIILFHEXLOGLQJVGDP
DJHGE\WKHHDUWKTXDNHRSHQDUHDVZHUH
OLPLWHGDQGZHKDGWRVFDOHEDFNWKLV\HDU
:HKHOGWKHHYHQWKRZHYHUSODFLQJPRUH
HPSKDVLVRQVDIHW\WKDQHYHUEHIRUH
,WZDVFORXG\RQWKHGD\RIWKH2SHQ+RXVHQRWWRRKRWDQGQRWWRRFROGZLWKQRUDLQ,WZDVDFWXDOO\SHUIHFWZHDWKHUIRUWKHYLVLWRUV
DQGVWDIIEHFDXVHWKLV\HDUZHKDGPDQ\VLWHVVHWXSRXWGRRUVLQWHQWVWRLQWURGXFHUHVHDUFK
'HVSLWHWKHORZHUOHYHORI35DFWLYLW\GXHWRWKHGHFLVLRQWRVFDOHEDFNWKHHYHQWWKLV\HDUZHZHOFRPHGPDQ\JXHVWV
7KHUHVHDUFKSUHVHQWDWLRQDWWKH2SHQ+RXVHIRFXVHGRQVDWHOOLWHFRPPXQLFDWLRQVWKDWDUHUHVLVWDQWWRGLVDVWHUV:HVKRZHGRXUVXSSRUW
DFWLYLWLHVFRQGXFWHGLQWKHGLVDVWHUVWULFNHQDUHDVULJKWDIWHUWKHHDUWKTXDNHE\XVLQJWKHVDWHOOLWHFRPPXQLFDWLRQVZKLOHOHWWLQJFKLOGUHQ
H[SHULHQFHWKHVDWHOOLWHFRPPXQLFDWLRQVQHWZRUNLQDQHDV\WRXQGHUVWDQGZD\:HDOVRLQWURGXFHGFUXVWDOPRYHPHQWREVHUYDWLRQV
UHODWHGWRHDUWKTXDNHVDVPHDVXUHGXVLQJUDGLRZDYHVHOHFWURPDJQHWLFZDYHV,WDOOZHQWZHOODQGWKHYLVLWRUVVKRZHGXVPDQ\SOHDV
DQWO\VXUSULVHGIDFHVDQGFXULRXVORRNV
NICT NEWS 2011. 8
8
3UL]H:LQQHUV
Prize Winner
●
Teruhisa Misu /
Expert Researcher, Spoken Language Communication Laboratory, Universal Communication Research Institute
◎Date：March 10, 2011
◎Comments by the Winner：
◎Name of Prize：
I am greatly honored to receive the Awaya
Prize Young Researcher Award that recognizes
our research results for creating a model of voice
interaction and optimizing dialogue strategies.
The results were achieved by utilizing the huge
body of voice interaction data collected through
the project. I would like to extend my sincere
appreciation to all of the people who have given
t hei r k i nd supp or t a nd co oper at ion for t he
resea rch , especia lly t ho se in t he Spoken
Language Communication Laboratory.
The Awaya Prize Young Researcher Award
◎Details of Prize：
In recognition of the excellent lecture on Optimization of Dialog ue Strateg ies using Reinforcement
L e a r n i n g i n Vo ic e I nt e r a c t i o n t h a t S u p p o r t s
Decision-making (Authors: Teruhisa Misu, Koumei
Sug iu ra , K iyonor i Ohta ke , Chior i Hor i , H idea ki
Kashioka, Hisashi Kawai, and Satoshi Nakamura)
◎Name of Awarding Organization：
The Acoustical Society of Japan
Prize Winner
●
Katsuhiro Maki /
Expert Researcher, Ultra-realistic Video Systems Laboratory, Universal Communication Research Institute
Joint Prize Winners：
◎Comments by the Winner：
Masato Akagi
(Japan Advanced Institute of Science and Technology)
Kaoru Hirota
(Tokyo Institute of Technology)
◎Date：March 10, 2011
◎Name of Prize：
The 51st Sato Prize Paper Award
◎Details of Prize：
A functional model of the auditory peripheral system:
Modeling phase-locking properties and spike generation processes of the auditory nerves
◎Name of Awarding Organization：
It is a great honor for me to have our research
paper on an auditory model, published in Acoustical Science and Technology, selected for the Paper
Award. I would like to express my sincere gratitude to everyone who supported my research. The
proposed model can faithfully simulate the firing
pattern of the auditory nerves̶the periphery
expression of the sound coming through the
external ear. The model can be applied to scientific research into the aural sense and to engineering research for evaluating sound models. The
recognition gives me huge encouragement and I
will continue to pursue the research.
The Acoustical Society of Japan
Prize Winner
●
Toshiaki Kuri /
Director, Planning Office, Photonic Network Research Institute
◎Date：March 15, 2011
◎Comments by the Winner：
◎Name of Prize：
It was a true honor for me to have interacted with many distinguished experts in the industrial and academic arenas while
conducting projects for four years beginning in May 20 05 as
secretary-general of the Technical Committee on Microwave
Photonics, IEICE (The Institute of Electronics, Information and
Communication Engineers) Electronics Society. That was a really
valuable experience for me. I would like to extend my deep appreciation to the executive group, the expert committee, and the
advisors of the Technical Committee, who gave me warm guidance and cooperation, as well as to those concerned persons in
NICT who supported me during the activities.
Recognition of Service in Electronics Society Activities
◎Details of Prize：
I n recog nition of dedicated service in operating
projects for the Electronics Society
◎Name of Awarding Organization：
IEICE Electronics Society
Prize Winner
●
Yutaka Kidawara / Director General, Universal Communication Research Institute
Sadao Kurohashi / Expert Researcher, Information Analysis Laboratory, Universal Communication Research Institute
Joint Prize Winners：
Susumu Akamine
(Former NICT Research Expert / currently with NEC)
◎Date：April 28, 2011
◎Name of Prize：
Contribution Award in the 43rd Ichimura Academic Awards
◎Details of Prize：
In recognition of unique research into the WISDOM
information analysis system that has opened up a
new academic field and contributed to the development of the industry
◎Name of Awarding Organization：
◎Comments by the Winner：
WISDOM has helped users to find reliable, valuable information
from the web, which contains both good and bad information. The
research did not end as just another project, but turned into
something useful in real life that was widely recognized and led
to our receiving the Ichimura Academic Awards. We would like
to express our deep gratitude to the former Knowledge Clustered
Group, as well as to all of the staff members of NICT. We would
not have received the prize, especially after just having received
the Maejima Award, without the kind cooperation given to us. We
would like to ask for your further support and cooperation as we
aim at even higher goals in the third medium-term plan for
further development of information analysis technology.
The Acoustical Society of Japan
Yutaka Kidawara
9
NICT NEWS 2011. 8
Prize Winner
●
Zhen Wang /
Distinguished Researcher, Advanced ICT Research Institute
Joint Prize Winners：
Yoshinori Uzawa
Yasunori Fujii
（National Astronomical Observatory of Japan, National Institutes of Natural Science）
◎Date：April 20, 2011
◎Name of Prize：
Prizes for Science and Technology of the
Commendation for Science and Technology
by the Minister of Education, Culture, Sports,
Science and Technology（Research Category）
◎Details of Prize：
In recognition of pioneering research into terahertz
detection technology utilizing niobium nitride-based
superconductivity
◎Name of Awarding Organization：
Minister of Education, Culture, Sports, Science and Technology
◎Comments by the Winner：
I am truly honored to receive the Prizes for
Science and Technology of The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and
Technology, especially in this memorable year
of the 100th anniversary of the discovery of
superconductivity. The prize recognizes my
twenty years of research into niobium
nitride-based superconductivity thin-film,
devices, and terahertz-band high-sensitivity
SIS heterodyne receivers using this technology and its ALMA application. I am deeply
grateful to the joint researchers and NICT
staff members, for their long-term support of
the research. I will continue to make every
effort to advance superconductivity research.
Prize Winner
●
Hobiger Thomas /
Researcher, Space-Time Standards Laboratory, Applied Electromagnetic Research Institute
◎Date：April 6, 2011
◎Name of Prize：
EGU G Division Outstanding Young Scientist Award
◎Details of Prize：
For outstanding contributions to the improvement of the accuracy of space geodetic techniques.
◎Name of Awarding Organization：
European Geosciences Union
◎Comments by the Winner：
It is indeed an honor for me to have my research about the“Development of Highlyaccurate Correction and Innovative Technology for Space Geodetic Techniques”recognized and to receive the EGU G Division Outstanding Young Scientist Award in 2011. I
believe the technique will contribute to precise international time comparisons. I will
continue to proceed with such research that will be worth recognizing.
EGU G Division Outstanding Young Scientist Award
◎Date：May 23, 2011
◎Name of Prize：
The Tsuboi Prize of the Geodetic Society of Japan
◎Details of Prize：
Precise Modeling of Radio Propagation for Space Geodesy
◎Name of Awarding Organization：
The Geodetic Society of Japan
◎Comments by the Winner：
I have received the Individual Award of the Tsuboi Prize of the Geodetic Society of
Japan in recognition of my research into“Precise Modeling of Radio Propagation for Space
Geodesy.”The research has resulted in a highly accurate model of delay errors, as well as
a method for correcting them, in radio-wave transmissions due to a neutral atmosphere.
Delay errors are a serious factor in space geodetic technologies that use space geodetic
techniques and microwaves. The research has significantly contributed to improving the
accuracy of observation data. I would like to express my deep gratitude to the many
people who have supported me, and I will continue to work toward better research results.
The Tsuboi Prize of the Geodetic Society of Japan
NICT NEWS 2011. 8
10
Received Certificate of Appreciation
from Tokyo Fire Department
−For the contribution of WINDS to emergency aid efforts
after the Great East Japan Earthquake−
2Q-XO\DWWKHJRYHUQPHQWRIILFHRI7RN\R)LUH'HSDUWPHQW1,&7UHFHLYHGDFHUWLILFDWHRIDSSUHFLDWLRQIURPWKH)LUH&KLHIRIWKH7RN\R
)LUH'HSDUWPHQWIRURXUVXSSRUWDQGFRRSHUDWLRQLQWKHHPHUJHQF\DLGHIIRUWVDIWHUWKH*UHDW(DVW-DSDQ(DUWKTXDNH
$VDSDUWRIUHVHDUFKDQGGHYHORSPHQWXVLQJWKHXOWUDIDVWLQWHUQHWVDWHOOLWH:,1'61,&7:LUHOHVV1HWZRUN5HVHDUFK,QVWLWXWHKDVEHHQ
LQYHVWLJDWLQJKRZWRPDNHJRRGXVHRIWKHFRPPXQLFDWLRQVVDWHOOLWHDIWHUODUJHVFDOHGLVDVWHUV$OWKRXJK:,1'6LVVWLOOLQWKHH[SHULPHQWDO
VWDJH1,&7JDYHSULRULW\WRGRLQJHYHU\WKLQJZHFRXOGWRKHOSLQJWKHSHRSOHDIIHFWHGE\WKH*UHDW(DVW-DSDQ(DUWKTXDNH
,QUHVSRQVHWRDUHTXHVWIRUDVVLVWDQFHIURPWKH7RN\R)LUH'HSDUWPHQWRQ0DUFKWZRGD\VDIWHUWKHHDUWKTXDNHZHFDUULHGDOOWKHQHFHV
VDU\HTXLSPHQWLQFOXGLQJD96$7SRUWDEOHXOWUDFRPSDFWHDUWKVWDWLRQWR.HVHQQXPD&LW\RQ0DUFKDQGEHJDQXVLQJ:,1'6WRSURYLGH
EURDGEDQGQHWZRUNFRQQHFWLRQVEHWZHHQWKH&RPPDQG+HDGTXDUWHUVRIWKHHPHUJHQF\ILUHILJKWLQJDLGJURXSVPDLQRIILFH.HVHQQXPD&LW\
0L\DJLDQGWKH7RN\R)LUH'HSDUWPHQW7)'DWLWV+HDGTXDUWHUV
VWUDWHJ\URRP2WH7RZQ7RN\RRQ0DUFK7KHWHPSRUDU\FRPPXQLFD
WLRQVQHWZRUNDOORZHGWKHWZRRIILFHVWRHDVLO\VKDUHLQIRUPDWLRQE\WUDQVPLWWLQJKLJKTXDOLW\LPDJHVDQGPDSVRIGDPDJHGDUHDVEL
GLUHFWLRQDOO\LQUHDOWLPH
:HDUHKRQRUHGWRUHFHLYHWKLVFHUWLILFDWHRIDSSUHFLDWLRQZKLFKUHFRJQL]HVRXUFRQWULEXWLRQVWRIDFLOLWDWLQJWKHDFWLYLWLHVRIWKHHPHUJHQF\
DLGJURXSV
【FYI】Information concerning our use of WINDS to aid emergency response efforts after Tohoku Region Pacific Coast Earthquake（March 16, 2011）
http://www.nict.go.jp/info/topics/announce110316.html
Information for Readers
The next issue will explore“NIRVANA”, which visualizes network traffic in real time, as well as data hiding, digital
watermarking, and other topics.
1R$8*
*44/
Published by
Public Relations Department,
National Institute of Information and Communications Technology
<NICT NEWS URL> http://www.nict.go.jp/data/nict-news/
Editorial Cooperation: FULFILL co., ltd.
4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
Tel: +81-42-327-5392 Fax: +81-42-327-7587
E-mail: [email protected]
<NICT URL> http://www.nict.go.jp/