Presentations -

携帯電話を利用した環境情報センシングシステム：Field Archiving System

KOHIYAMA KENJI　FUJINO SATOMI

インタラクション２００７ (東京) , 

2007.03

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Oral presentation (general), 情報処理学会

携帯情報端末を利用したField Archiving Systemの研究開発

KOHIYAMA KENJI　FUJINO SATOMI

第40回モバイルコンピュ－ティングとユビキタス通信研究会 第13回ユビキタスコンピュ－ティングシステム研究会合同研究発表会 (函館、秋葉原) , 

2007.02

, 

Oral presentation (general), 情報処理学会

新「ゾウムシデ－タベ－ス」の開発と公開

KOHIYAMA KENJI　KOJIMA HIROAKI

日本鞘翅学会第19回大会　ゾウムシ分科会 (千葉県) , 

2006.11

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Oral presentation (general)

実空間コンテンツ・アプリケ－ション開発を支援する組み込みコンピュ－ティング環境

KOHIYAMA KENJI　ISHIZAWA TAKAAKI NAKANISHI YASUHITO

モバイルコンピュ－ティングとユビキタス通信研究会第３７回 (沖縄青年会館) , 

2006.05

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Oral presentation (general), 情報処理学会/電子情報通信学会　共催

中国情報化社会の地理学的研究

KOHIYAMA KENJI　HUA JINLING

SFC Open Research　湘南藤沢学会ポスタ－セッション (Tokyo) , 

2005.11

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Poster presentation

中国における携帯電話普及の地域間格差に関する研究

KOHIYAMA KENJI　HUA JINLING TOMOYUKI HURUTANI

2005年人文地理学会大会 (九州大学六本松校舎) , 

2005.11

, 

Oral presentation (general)

Space Structure Research on Chinese Telecommunication Infrastructure

KOHIYAMA KENJI FURUTANI TOMOYUKI HANA KINREI

中国通信学会通信管理研究会2005 (北京) , 

2005.10

, 

Oral presentation (general), 中国通信学会

「GPSモブログ」による社会調査プラットフォ-ムの研究開発

KOHIYAMA KENJI　MIZUSHIMA SOUTA

第32回モバイルコンピュ-ティングとユビキタス通信・第7回ユビキタスコンピュ-ティングシステム合同研究発表会 (Tokyo) , 

2005.03

, 

Oral presentation (general), 情報処理学会

「3DMUSCLE」携帯電話を利用したステレオ立体写真撮影閲覧システム」

KOHIYAMA KENJI NAKAYAMA YUTA MIZUSHIMA SOTA KAWATA MASAAKI

インタラクション2005 (東京) , 

2005.02

, 

Poster presentation, 情報処理学会

中国物流市場的発展及其所面臨的挑戦之研究　-一個適合中国現代物流業発展的位置跟蹤系統的提議-

KOHIYAMA KENJI　SETSU RYOU HANAKINREI

2004年国際資迅資迅管理電子商務経営管理研討会 (台湾) , 

2004.12

, 

Oral presentation (general)

中國移動通信政策決策機制與市場之分析　-小霊通（PHS)與手機政策舉措的對比

KOHIYAMA KENJI　HANA KINREI SETSU RYOU

2004年国際資迅資迅管理電子商務経営管理研討会 (台湾) , 

2004.12

, 

Oral presentation (general)

日本移動通信3G服務商業化進程之研究

KOHIYAMA KENJI　HANA KINREI SETSU RYOU

2004年国際資迅資迅管理電子商務経営管理研討会 (台湾) , 

2004.12

, 

Oral presentation (general)

A Behavior-based Personal Controller for Autonomous Ubiquitous Computing

KOHIYAMA KENJI　MIZUTORI TAKAMITSU NAKAYAMA YUTA

2nd International Symposium on Ubiquitous Computing Systems (UCS2004) (Keio University) , 

2004.11

, 

Oral presentation (general), Ubiquitous Computing Systems Group (UBI) of Information Processing Society of Japan (IPSJ)

REPRESENTING HUMAN SPATIAL BEHAVIOR BY SELF-ORGANIZING NETWORKS

KOHIYAMA KENJI　MIZUTORI TAKAMITSU

IFIP International Conference on Intelligent Information Processing 2004 (BEIJING,CHINA) , 

2004.10

, 

Oral presentation (general)

「中国における小霊通（PHS)市場戦略に関する一考察-小霊通の政策と事業者の戦略から-

KOHIYAMA KENJI　HANA KINREI

電子情報通信学会無線通信システム研究会 (北海道) , 

2004.08

, 

Oral presentation (general), 電子情報通信学会

中国小霊通（PHS)の動向

KOHIYAMA KENJI Hana Kinrei

日本コミュニケ－ション学会第34回年次大会 (東京都) , 

2004.06

, 

Other

中国における携帯電話ユ－ザ－の分布と普及率

KOHIYAMA KENJI　Hana Kinrei

第21回情報通信学会大会 (千葉県) , 

2004.06

, 

Oral presentation (general)

中国における小霊通（PHS）の急増要因分析-北京小霊通市場を中心に-

KOHIYAMA KENJI　Hana Kinrei

第21回情報通信学会大会 (千葉県) , 

2004.06

, 

Oral presentation (general)

イメ-ジベ-スポイントレンダリングと色編集ツ－ルへの応用

KOHIYAMA KENJI　KAWATA HIROAKI Alexandre Guaillard MORITA MASAHIKO KANAITAKASHI

画像電子学会第32回年次大会 (東京) , 

2004.06

, 

Oral presentation (general)

普及状況からみる中国携帯の地域性

KOHIYAMA KENJI　Hana Kinrei

情報処理学会　第87回情報システムと社会環境研究会 (東京) , 

2004.03

, 

Oral presentation (general)

小霊通（PHS）の可能性に関する一考察

KOHIYAMA KENJI　Hana Kinrei

湘南藤沢学会　第2回研究論文発表大会 (東京) , 

2003.11

, 

Oral presentation (general)

中国における第三世代標準の展開

KOHIYAMA KENJI　Hana Kinrei

経営情報学会　2003年全国研究秋季発表大会 (北海道) , 

2003.11

, 

Oral presentation (general)

実画像による超高精細三次元画像モデル形成に関する研究

KOHIYAMA KENJI　MORITA MASAHIKO, KOHIYAMA KENJI

日本ソフトウェア科学会WISS2003 (石川県) , 

2003.11

, 

Other, 日本ソフトウェア科学会

中国移動通信産業における産業育成と課題

KOHIYAMA KENJI　Hana Kinrei

第11回アジアのメディア融合研究会 (東京) , 

2003.07

, 

Oral presentation (invited, special), 財団法人　国際通信経済研究所

IBM&Rによるテクスチャ付き3次元スキャナ-の開発

KOHIYAMA KENJI

画像電子学会第199回研究会 (東京) , 

2003.02

, 

Oral presentation (general), 画像電子学会

Micro Archiving

KOHIYAMA KENJI

日本ソフトウェア科学会　WISS2001 (兵庫県) , 

2001.12

, 

Oral presentation (general)

周波数有効利用とオ-クション〔含 討論要約〕(研究会報告 IT革命のための周波数利用方策)

KOHIYAMA KENJI

情報通信学会誌 (-) , 

2001.05

, 

Oral presentation (general)

実画像による超高精細３Ｄモデル構成法

KOHIYAMA KENJI

画像電子学会年次大会予稿集 (-) , 

2001

, 

Oral presentation (general)

モバイルマルチメディア機器による新しいヴァ－チャル空間の創成

KOHIYAMA KENJI YASUDA KINUKO MATSUBARA DAIGO HAGINO TATSUYA

第5回ネットワ－クの変革とソフトウェア研究会 (東京) , 

2000.12

, 

Oral presentation (general)

21世紀初頭の情報通信に対する希望と展望

KOHIYAMA KENJI

郵政省通信総合研究所研究発表会予稿 (-) , 

1999.06

, 

Oral presentation (general)

２１世紀初頭の情報通信に対する希望と展望

KOHIYAMA KENJI

通信総合研究所研究発表会予稿 (-) , 

1999

, 

Oral presentation (general)

高精細画像作成に関する研究

KOHIYAMA KENJI

画像電子学会年次大会予稿集 (-) , 

1999

, 

Oral presentation (general)

Personal communication system in Japan

KOHIYAMA KENJI

1994 IEEE MTT-S International Microwave Symposium Digest (Cat.No.94CH3389-4). IEEE, New York, NY, USA; 1994 (-) , 

1994

, 

Oral presentation (general)

　View Summary

Japan's Personal Handy Phone (PHP) system for personal communication system is reviewed and a field service test is briefly described. A personal communication system as a concept comprising 'Mobile communication', 'ISDN', and 'Public Telephone' is also discussed. This system is compared with the mobiletelephone system (Cellular system) from the viewpoint of future radio access prospects. Moreover, it is emphasized that advanced radioaccess is needed to meet the diversified and sophisticated demands in telecommunications.(xxxiii+xlvii+1788+xxviii+xviii+xli) pp.

Advanced wireless access system

Kohiyama-K　Morita-K　Yoshida-T

1994 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.94TH0666-8). IEEE, New York, NY, USA; 1994 (-) , 

1994

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Oral presentation (general)

　View Summary

This paper describes an advanced wireless system which is composedof a wireless access node, a wireless access point, and a multimedia portable terminal. The wireless access node and access point are connected by optical fibers to realize broadband and high quality transmission. The optical fibers to realize broadband and high quality transmission. The 'fiber radio' technologies. This advanced wireless system, the multimedia wireless access system, provides video and data communications as well as voice services.（xiii+238 pp）

Evolution towards personal telecommunication services

Ogawa-K　Kohiyama-K　Kobayashi-T　Sekiguchi-H

ICCT '92. Proceedings of 1992 International Conference on Communication Technology. (-) , 

1992

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Oral presentation (general)

　View Summary

This paper describes NTT's approach to developing services to meetgrowing demand. First, it briefly introduces the concept of personal communications services. It then examines the network requirements and basic structure methods necessary for the development of personal communications. In addition, it outlines the development of the Personal Handy Phone (PHP), Japan's second generation digital cordless telephone. Finally, the paper summarizes NTT's Pocket Telephone concept and how it relates to NTT's future service vision of Visual Intelligent and Personal communications (VI&P).(xxviii+698+xxviii+594) pp.

256-QAM subcarrier transmission using coding and optical intensitymodulation in distribution networks

Ohtsuka-H　Kagami-O　Komaki-S　Kohiyama-K　Kavehrad-M

IEEE-Photonics-Technology-Letters. (-) , 

1991.04

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Oral presentation (general)

　View Summary

Fiber-optic transmission of 256 quadrature amplitude modulation (QAM) signals at both 10 Mb/s and 50 Mb/s transmission rates are presented. Theoretical and preliminary experimental bit error rate (BER) performance results are described for two types of 256-QAM signals. Application of error correction coding using a BCH code is very effective in optical analog intensity modulation. It is feasible to use 256-QAM signals as subcarriers in fiber distribution networks.

Recent R&D on digital microwave radio relay systems

Komaki-S　　Nakamura-Y　Kohiyama-K

Conference Proceedings. 20th European Microwave Conference 90.　Microwave Exhibitions & Publishers, Tunbridge Wells, UK; 1990; 2 vol. Xxviii+1786 pp. (Tunbridge Wells, UK) , 

1990

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Oral presentation (general)

　View Summary

As a low-loss, wide-bandwidth transmission medium that is beamed through the atmosphere, digital microwave radio has been widely usedfor long-haul, large capacity links by many countries around the globe. Considering the growing demand for increased diversification in networks,　however, more attention should be focused on applying DMR to those areas　that best exploit the medium's original strengths-that is, easy and flexible network construction. Today, the trend in user needs is evolving in contrary directions: toward more personalized service on the one hand　and toward global-scale reach on the other. The authors propose what they　call a Digital Microwave Radio Highway as a practical approach to reconciling these conflicting tendencies. As they describe the various　enabling technologies involved, the opportunity is taken to survey the R&D　on digital microwave radio (DMR) systems that is being conducted in Japan today.

Advanced personal communication system

Kohiyama-K　Hattori-T　Sekiguchi-H　Kawasaki-R

40th IEEE Vehicular Technology Conference : on the move in the 90's : (-) , 

1990

, 

Oral presentation (general)

　View Summary

A novel concept for personal communication that achieves the ultimate objectives of communications services, to enable anyone to communicate instantly with anyone anywhere, is proposed. This concept offers a　personal service network with subscriber access systems forboth wired and　radio terminals. Its three principal concepts are: (1) assigning a personal identity such as a personal telecommunication number for individual, with the network tracking the person's routing, (2) serving ultra-small portable units for radio link access, and (3) servicing advanced functions such as the network playing the role of secretary. An advanced personal communication system in which such functions as location registration and tracking exchange are handled by public communications　networks is proposed. Cost-effective and rapid service development can be realizing by using such public communication network facilities as transport systems. The proposed system enables each person to affor!　D a portable telephone set because of large cost reductions and increased capacity, The system architecture and technical problems are also presented.

Advanced personal communications system

Suzuki-T,Hattori-T,Kohiyama-K

'Communication Systems: Towards Global Integration. Singapore ICCS '90. Conference Proceedings. Elsevier, Amsterdam, Netherlands; 1990; 2 vol. Xviii+1352 pp.' (-) , 

1990

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Oral presentation (general)

　View Summary

A new personal communications system that achieves the ultimate incommunication services, I.e. anyone can communicate instantly with anyone else anywhere, is proposed. This system is a personal service network with subscriber access possible from wired and radio terminals. Its three principal concepts are: assigning a personal identity such as a personal telecommunication number to each subscriber, and the network tracks the person according to the routing address which corresponds to the PTN; inexpensive charge and ultra small portable units for radio link access; and advanced service functions such as the network playing the role of secretary. System architecture and technical problems are also presented.

Personal communication-concept and architecture

Hattori-T　Sekiguchi-H　Kohiyama-K　Ua,a,ptp-H

IEEE. ICC90 (Orlando, Florida, May 6-9, 1990) , 

1990

, 

Oral presentation (general)

　View Summary

The authors propose a new concept for personal communications whose ultimate objective is to enable anyone to communicate instantly with anyone else anywhere. The system architecture and technical problems are　described. This concept offers a personal service networkwith subscriber access systems for both radio and wired access. Itsthree principal　concepts are (1) assigning a personal identity, such as a personal　telecommunication number for an individual, with the network tracking the　person's routing; (2) serving ultrasmall portable units for radio link access, and (3) servicing advanced functions, e.g. having the network play the role of secretary.'

Demand assigned TDMA system for digitally integrated services network

Kohiyama-K　Watanabe-Y　Samejima-S　Kato-S

AIAA 8th Communications Satellite Systems Conference. AIAA, New York,　NY, USA; 1980; 786 pp. (-) , 

1980

, 

Oral presentation (general)

　View Summary

The DA-TDMA system is one of the key technological developments for　application to integrated services satellite digital networks (ISSDN)　which transmit digitally integrated information signals between Earth stations. The experimental system designed for an ISSDN experiment has a　20 Mb/s bit rate and operates in a fully variable demand assignment mode.This paper describes the outline of the DA-TDMA system and the ISSDN experimental plan.