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学術誌掲載原著論文（審査あり） 1.
Akihiko
Sugiyama, Shigeji Ikeda, and Akihiro Hirano, ``A
Fast Convergence Algorithm for Sparse-Tap Adaptive FIR Filters Identifying an
Unknown Number of Dispersive Regions,” IEEE Transactions on Signal Processing,
pp.3008-3017, Dec. 2002.. 2.
Masanori Kato, Akihiko Sugiyama, and Masahiro Serizawa, ``
Noise Suppression with High Speech Quality Based on Weighted Noise Estimation
and MMSE STSA,” IEICE Trans. Fundamentals, IEICE Trans. Fundamentals, vol.
E85-A, No.7, pp.1710-1718, Jul. 2002. 3.
Akihiko
Sugiyama, Yann Joncour, and Akihiro Hirano, ``A
Stereo Echo Canceler with Correct Echo-Path Identification Based on an Input
Sliding Technique,” IEEE Transactions on Signal Processing, pp.2577-2587, Nov.
2001. 4.
Osamu Hoshuyama, Brigitte Begasse, and Akihiko Sugiyama,
``A New Adaptation-Mode Control Based on Cross Correlation for a Robust Adaptive
Microphone Array,” IEICE Trans. Fundamentals, vol. E84-A, No.2, pp.406-413,
Feb. 2001. 5.
Osamu Hoshuyama, Akihiko Sugiyama,
and Akihiro Hirano, ``A Robust Adaptive Beamformer for Microphone Arrays with a
Blocking Matrix Using Constrained Adaptive Fileters," IEEE Transactions on
Signal Processing, vol.47, No.10, pp.2677-2684, Oct. 1999. 6.
Shigeji Ikeda and Akihiko Sugiyama,
``An Adaptive Noise Canceller with Low Signal-Distortion in the Pesence of
Crosstalk,” IEICE Trans. Fundamentals, vol. E82-A, No.8, pp.1517-1525, Aug.
1999. 7.
Osamu Hoshuyama, Akihiko Sugiyama, and Akihiro Hirano, ``A
Robust Adaptive Beamformer with a Blocking Matrix Using Coefficient-Constrained
Adaptive Filters,” IEICE Trans. Fundamentals, vol. E82-A, No.4, pp.640-647,
Apr. 1999. 8.
Shigeji Ikeda and Akihiko Sugiyama, ``An Adaptive Noise
Canceler with Low Signal-Distortion for Speech Codecs," IEEE
Transactions on Signal Processing, vol.47, No.3, pp.665-674, Mar. 1999. 9.
Akihiko
Sugiyama, Kenji Anzai, Hiroshi Sato, and Akihiro
Hirano, ``Cancellation of Multiple Echoes by Multiple Autonomic and Distributed
Echo Canceler Units,” IEICE Trans. Fundamentals, vol. E81-A, No.11,
pp.2361-2369, Nov. 1998. 10.
高見沢雄一郎、岩垂正宏、杉山昭彦、「極大値置換可逆符号化方式とそのオーディオ符号化への適用」、電子情報通信学会論文誌、分冊A、Vol.J80-A、No.9、pp.1388-1395、1997年9月。 11.
Akihiko
Sugiyama, Masahiro Iwadare, Nobuhiro Ohdate, Takashi
Manabe, Hideto Takano, Osamu Kitabatake and Eiji Hirao, ``A New Implementation
of the Silicon Audio Player Based on an MPEG/Audio Decoder LSI," IEEE
Transactions on Consumer Electronics, Vol.43, No.2, pp.207-215, May 1997. 12.
Akihiko
Sugiyama, Hiroshi Sato, Akihiro Hirano and Shigeji
Ikeda, ``A Fast Convergence Algorithm for Adaptive FIR Filters Under
Computational Constraint for Adaptive Tap-Position Control," IEEE
Transactions on Circuits And Systems, Part II, vol.43, No.9, pp.629--636, Sep.
1996. 13.
宝珠山治、杉山昭彦、「ブロッキング行列にリーク適応フィルタを用いたロバスト一般化サイドローブキャンセラ」、電子情報通信学会論文誌、分冊A、Vol.J79-A、No.9、pp.1516-1524、1996年9月。 14.
Akihiko
Sugiyama and Tomokazu Ito, ``A Fast Timing Recovery
Method with a Decision Feedback Equalizer for Baudrate Sampling," IEICE
Transactions Fundamentals. vol. E79-A, No.8, pp.1267-1273, Aug. 1996. 15.
Akihiro Hirano and Akihiko Sugiyama, ``A Modified
Normalized LMS Algorithm Based on a Long-Term Average of the Reference Signal
Power," IEICE Transactions Fundamentals. vol. E78-A, No.8, pp.915-920, Aug.
1995. 16.
Akihiko
Sugiyama, Masahiro Iwadare, Nobuhiro Ohdate, Takashi
Manabe, Hideto Takano, Osamu Kitabatake and Eiji Hirao, ``The Silicon Audio ---
An Audio-Data Compression and Storage System with a Semiconductor Memory Card
---," IEEE Transactions on Consumer Electronics, Vol.41, No.1, pp.186-194,
Feb. 1995. 17.
Akihiko
Sugiyama and Akihiro Hirano, ``A Subband Adaptive
Filtering Algorithm with Adaptive Intersubband Tap-Assignment," IEICE
Transactions Fundamentals. vol. E77-A, No.9, pp.1432-1438, Sep. 1994. 18.
Akihiko
Sugiyama and Shigeji Ikeda, ``A Fast Convergence
Algorithm for Adaptive FIR Filters with Sparse Taps," IEICE Transactions
Fundamentals. vol. E77-A, No.4, pp.681-687, Apr. 1994. 19.
Akihiko
Sugiyama, ``Stochastic Gradient Algorithms with a
Gradient-Adaptive and Limited Step-Size," IEICE Transactions Fundamentals.
vol. E77-A, No.3, pp.534-538, Mar. 1994. 20.
Zhiqiang Ma, Kenji Nakayama and Akihiko Sugiyama,
``Automatic Tap Assignment in Sub-band Adaptive Filter," IEICE Transactions
on Communications, E76-B, No.7, pp.751-754, Jul. 1993. 21.
Masahiro Iwadare, Akihiko Sugiyama, Fumie Hazu, Akihiro
Hirano and Takao Nishitani, ``A 128 kb/s Hi-Fi Audio CODEC Based on Adaptive
Transform Coding with Adaptive Block Size MDCT," IEEE Journal of Selected
Areas in Communications, Vol.10, No.1, pp.138-144, Jan. 1992. 22.
Yutaka Takahashi, Masahiro Takahara, Takayoshi Manabe, Daijiro Inami,
Masahiko Ohno, Fujio Nakagawa, Tetsu Koyama, Akihiko Sugiyama,
Masao Chatani and Renya Ikeda, ``An ISDN Echo-Cancelling Tranceiver Chip Set for
2B1Q Coded U-Interface," IEEE Journal of Solid-State Circuits, Vol.24,
No.6, pp.1598-1604, Dec. 1989. 23.
Akira Kanemasa, Akihiko Sugiyama, Shin'ichi Koike and Tetsu
Koyama, ``An ISDN Subscriber Loop Transmission System Based on Echo Cancellation
Technique," IEEE Journal of Selected Areas in Communications, Vol.SAC-4,
No.8, pp.1359-1366, Nov. 1986. 国際学会講演論文（審査あり） 1.
Masanori Kato, Akihiko
Sugiyama, and Masahiro Serizawa, ``A Family of 3GPP-Standard Noise
Suppressors for the AMR Codec and the Evaluation Results,” Proc. ICASSP2003,
pp.*-*, Apr. 2003. 2.
Masanori Kato, Akihiko
Sugiyama, and Masahiro Serizawa, “A Wideband Noise Suppresssor for the
AMR Wideband Speech Codec,” Proc. of Speech Coding Workshop2002, pp.156-158,
Oct. 2002. 3.
Akihiko Sugiyama,
Thanh Phong Hua, Masanori Kato, and Masahiro Serizawa, `` Evaluation of a Noise
Suppressor with Synthesis Windowing and Pseudo Noise Injection for the AMR
Wideband Speech Codec,” Proc. ICASSP2002, pp.545-548, May 2002. 4.
Masanori Kato, Akihiko
Sugiyama, and Masahiro Serizawa ``Noise Suppression with High Speech
Quality based on Weighted Noise Estimation and MMSE STSA,” Proc. Int.Workshop
on Acoust. Echo and Noise Cont. (IWAENC2001), Sep. 2001. 5.
Akihiko Sugiyama
and Tetsuro Yamaji, `` An Efficient Multichannel Line Echo Canceler Algorithm
for PSTN and VoIP/VoDSL Applications,” Proc. ICASSP2001, pp.3229-3232, May
2001. 6.
Akihiko Sugiyama
and Go Homma, ``A Computationally Efficient Echo Canceler Algorithm for Multiple
Telephone Lines,” Proc of IEEE Int. Workshop on Sig. Proc., Oct. 2000. 7.
Osamu Hoshuyama and Akihiko
Sugiyama, ``Realtime Adaptive Microphone Array on a Single-DSP
System,” Proc. Int.Workshop on Acoust. Echo and Noise Cont. (IWAENC’99),
Sep. 1999. 8.
Osamu Hoshuyama and Akihiko
Sugiyama, ``An Adaptive Microphone Array with Good Sound Quality Using
Auxiliary Fixed Beamformers And Its Single-DSP Implementation,” Proc.
ICASSP’99, pp.949-952, Mar. 1999. 9.
Yann Joncour, Akihiko
Sugiyama, and Akihiro Hirano, ``DSP Implementation and Performance
Evaluation of a Stereo Echo Canceler with Pre-Processing,” Proc. EUSIPCO’98,
pp.981-984, Sep. 1998. 10.
Yann Joncour, Akihiko
Sugiyama and Akihiro Hirano, ``A Stereo Echo Canceler with Correct
Echo-Path Identification and Good Sound Localization,” IEEE Int. Workshop on
Sig. Proc., pp. Aug. 1998. 11.
Yann Joncour and Akihiko
Sugiyama, ``A Stereo Echo Canceler with Pre-Processing for Correct
Echo-Path Identification,” Proc. ICASSP’98, pp.3677-3680, May 1998. 12.
Osamu Hoshuyama and Akihiko
Sugiyama and Akihiro Hirano, ``A Robust Adaptive Microphone Array with
Improved Spatial Selectivity and Its Evaluation in a Real Environment,"
Proceedings of ICASSP'97, pp.367-370, Apr. 1997. 13.
Yuichiro Takamizawa,
Masahiro Iwadare and Akihiko Sugiyama, ``An Efficient Tonal
Component Coding Algorithm for MPEG-2 Audio NBC," Proceedings of ICASSP'97,
pp.331-334, Apr. 1997. 14.
Akihiro Hirano, Akihiko
Sugiyama and Shigeji Ikeda, ``DSP Implementation and Performance
Evaluation of Sparse-Tap Adaptive FIR Filters with Tap-Position Control,"
Proceedings of ICASSP'96, pp.1295-1298, May 1996. 15.
Osamu Hoshuyama and Akihiko
Sugiyama, ``A Robust Adaptive Beamformer for Microphone Arrays with a
Blocking Matrix using Constrained Adaptive Filters," Proceedings of
ICASSP'96, pp.925-928, May 1996. 16.
Akihiko Sugiyama
and Frederic Landais, ``A Adaptive Intersubband Tap-Assignment Algorithm for
Subband Adaptive Filters," Proceedings of ICASSP'95, pp.3051-3054, May
1995. 17.
Akihiro Hirano and Akihiko
Sugiyama, ``A Noise-Robust Stochastic Gradient Algorithm with an
Adaptive Step-Size for Mobile Hands-Free Telephones," Proceedings of
ICASSP'95, pp.1392-395, May 1995. 18.
Shigeji Ikeda and Akihiko
Sugiyama, ``A Fast Convergence Algorithm for Sparse-Tap Adaptive FIR
Filters for Cancellation of Multiple Echoes," Proceedings of ISNCR-94,
pp.265-270, Apr. 1994. 19.
Akihiro Hirano, Akihiko
Sugiyama, Yasuhiro Arasawa and Noboru Kawayachi, ``DSP Implementation
and Performance Evaluation of a Compact Stereo Echo Canceller," Proceedings
of ICASSP'94, pp.245-248, Apr. 1994. 20.
Shigeji Ikeda and Akihiko
Sugiyama, ``A Fast Convergence Algorithm for Sparse-Tap Adaptive FIR
Filters for An Unknown Number of Multiple Echoes," Proceedings of
ICASSP'94, pp.41-44, Apr. 1994. 21.
Akihiro Hirano and Akihiko
Sugiyama, ``DSP Implementation and Performance Evaluation of a Compact
Stereo Echo Canceller," Proceedings of ISPACS'93, pp.356-361, Oct. 1993. 22.
Rabin Deka, Akihiko
Sugiyama and Takao Nishitani, ``A Novel Method to Optimize Patterns for
Broadside Arrays with Odd Number of Sensors," Proceedings of ISPACS'93,
pp.26-31, Oct. 1993. 23.
Akihiko Sugiyama,
Hiroshi Sato, Akihiro Hirano and Shigeji Ikeda, ``A Fast Adaptive FIR Filter
Algorithm with Reduced Computation for Adaptive Tap-Position Control,"
Proceedings of ISPACS'93, pp.20-25, Oct. 1993. 24.
Zhiqiang Ma, Kenji
Nakayama and Akihiko Sugiyama, ``Automatic Adjustment of the
Lengths of Sub-band Adaptive Filters," Proceedings of APCC'93 (Asia-Pacific
Conference on Communications), Vol.2, pp.5E1.1-5E1.4, Aug. 1993. 25.
Akihiko Sugiyama,
``An Interference-Robust Stochastic Gradient Algorithm with a Gradient-Adaptive
Step-Size," Proceedings of ICASSP'93, pp.539-542, May 1993. 26.
Akihiro Hirano and Akihiko
Sugiyama, ``A Compact Multi-Channel Echo Canceller with a Single
Adaptive Filter Per Channel," Proceedings of ISCAS'92, Vol.4, pp.1922-1925,
May 1992. 27.
Shigeji Ikeda and Akihiko
Sugiyama, ``A Fast Convergence Algorithm for Adaptive FIR Filters with
Coarsely Located Taps," Proceedings of ICASSP'91, pp.1525-1528, May 1991. 28.
Fumie Hazu, Akihiko
Sugiyama, Masahiro Iwadare and Takao Nishitani, ``Adaptive Transform
Coding with an Adaptive Block Size Using a Modified DCT," Proceedings of
ICSLP'90, pp.15.15.1-15.15.4, Apr. 1990. 29.
Akihiko Sugiyama,
Fumie Hazu, Masahiro Iwadare and Takao Nishitani, ``Adaptive Transform Coding
with an Adaptive Block Size (ATC-ABS)," Proceedings of ICASSP'90,
pp.1093-1096, Apr. 1990. 30.
Akihiko Sugiyama,
M. N. S. Swamy and Eugene I. Plotkin, ``A Fast Convergence Algorithm for
Adaptive FIR Filters," Proceedings of ICASSP'89, pp.892-895, Apr. 1989. 31.
Akira Kanemasa,
Shin'ichi Koike, Akihiko Sugiyama and Fujio Nakagawa,
``Compensation for the Residual Echo Increase Due to a Timing Clock Phase
Jump," Proceedings of Globcom'87, Vol.3, pp.49.8.1-49.8.5, Dec. 1987. 32.
Akihiko Sugiyama,
Akira Kanemasa and Shin'ichi Koike, ``A Decision Feedback Equalizer for ISDN
Subscriber Loop Transmisson," Proceedings of ICC'86, pp.52.3.1-52.3.5, Jun.
1986. 33.
Akira Kanemasa and Akihiko
Sugiyama, ``An Adaptive Filter Convergence Method for Echo Cancellation
and Decision Feedback Equalization," Proceedings of ICASSP'86,
pp.19.3.1-19.3.3, Apr. 1986. 34.
Akira Kanemasa and Akihiko
Sugiyama, ``An Echo Canceller Convergence Method for Digital Subscriber
Loop Transmission," Proceedings of IASTED'85, pp.73-77, Sep.1985. 35.
Akira Kanemasa, Akihiko
Sugiyama, Shin'ichi Koike, Tetsu Koyama, Masanori Mitome and Masahiko
Kurosaki, ``A Study on the Subscriber Loop Transmission System for ISDN Based on
the Echo Cancellation Technique," Proceedings of ICC'85, Vol.1,
pp.7.5.1-7.5.5, May 1985. 口頭発表 上記の他、電子情報通信学会全国大会、研究会などにおいて、149件の口頭発表論文がある。 解説・招待論文 1.
杉山昭彦、芹沢昌宏、加藤正徳、「携帯電話用雑音抑圧技術の標準化」、DSPシンポジウム、A5-1,
2002年11月。 2.
杉山昭彦、芹沢昌宏、加藤正徳、「携帯電話用雑音抑圧技術の標準化」、信学技報、EA2002-1,
pp.1-6, 2002年4月。 3.
Karlheinz
Brandenburg, Oliver Kunz and Akihiko Sugiyama, ``MPEG-4 Natural
Audio Coding,” Signal Processing: ImageCommnication, 15, pp.423-444, 2000. 4.
杉山昭彦、「マルチメディア時代の音響信号処理技術」、信学技報、US2000-39、pp.23-30、2000年9月。 5.
宝珠山治、杉山昭彦、「マイクロホンアレイの研究動向と実現技術」、信学技報、DSP99-122、pp.75-82、1999年12月。 6.
杉山昭彦、「マルチチャネルエコーキャンセラ―技術的課題と解決への挑戦―」、信学誌、Vol.81,
No.3, 、pp.266-274、1998年3月。 7.
杉山昭彦、岩垂正宏、野村俊之、「オーディオ符号化の国際標準
―MPEG-1からMPEG-4まで―」、54巻、2号、pp.145-153、1998年2月。 8.
宝珠山治、杉山昭彦、「音響ビームフォーミングと多次元信号処理」、信学技報、CAS97-87、pp.1-8、1998年1月。 9.
杉山昭彦、「オーディオ符号化」、音響学会誌「小特集--マルチメディアを支える高能率符号化」、51巻、10号、pp.790-796、1995年10月。 10.
杉山昭彦、「MPEG
オーディオ標準化動向とその応用」、エレクトロニクス、pp.56-59、オーム社、1995年6月。 11.
杉山昭彦、「オーディオ符号化」、テレビジョン学会誌「特集
MPEG」、Vol.49、No.4、pp.467-479、1995年4月。 12.
杉山昭彦、「音響情報符号化アルゴリズム解説---
MPEG/Audio を中心に」、インターフェース、pp.121-136、CQ 出版、1994年8月。 13.
杉山昭彦、「音響信号の高能率符号化」、テレビジョン学会誌講座「ディジタルテレビ放送の基礎技術」、Vol.48、No.4、pp.447-454、1994年4月。 14.
杉山昭彦、西谷隆夫、「符号化技術」、テレビジョン学会誌「最近のサウンド技術」小特集号、Vol.46、No.9、pp.1072-1075、1992年9月。 著書 1.
藤原洋・安田浩
監修、「ポイント図解式 ブロードバンド+モバイル
標準MPEG教科書」、杉山昭彦、第7章「各種MPEGオーディオ標準の概要」、アスキー、pp.255-290、2003年2月。 2.
M. Brandstein and D. Ward, Eds.,
``Microphone Arrays,” Osamu Hoshuyama and Akihiko Sugiyama,
Chap. 5, ``Robust Adaptive Beamforming,” Springer, Berlin, pp.87-109, Jan.
2001. 3.
テレビジョン学会
編、「ディジタル放送」、杉山昭彦、第
4 章「オーディオ信号の高能率符号化」、尖端社（韓国語訳）、pp.63-79、2001年3月。 4.
藤原洋
編、「マルチメディア情報圧縮」、杉山昭彦、Part
3, 3.2「MPEG-1オーディオからMPEG-2オーディオへ」、共立出版、pp.97-117、2000年3月。 5.
Keshab K. Parhi and Takao Nishitani, Eds.,
``Digital Signal Processing for Multimedia Systems,” Akihiko Sugiyama
and Masahiro Iwadare, Chap. 3, ``Audio Compression,”
Marcel Dekkar, NY, pp.43-66, 1999. 6.
桜井貴康
編、「システムLSI―アプリケーションと技術―」、杉山昭彦、第2篇システムの共通要素技術、第3章「音声・オーディオ」、サイエンスフォーラム、pp.195-207、1999年7月。 7.
テレビジョン学会
編、「ディジタル放送」、杉山昭彦、第
4 章「オーディオ信号の高能率符号化」、オーム社、pp.53-70、1996年11月。 8.
テレビジョン学会
編、「MPEG」、杉山昭彦、第 6 章「MPEG オーディオ符号化」、オーム社、pp.133-162、1996年4月。 9.
安田浩
編著、「MPEG/マルチメディア符号化の国際標準」、杉山昭彦、第
6 章「MPEG･Audio」、丸善出版、pp.114-133、1994年9月。 10.
情報処理学会 編、情報処理ハンドブック、杉山昭彦、3
章 ISO/IEC JTC1、3.3.2 オーディオビジュアルとマルチメディア符号化 (SC29)、 [3] 動画像符号化方式
(MPEG)、 (d)-(3) 「オーディオパート」、pp.1830-1831、1994年5月。 11.
米満潤 監修、「MPEG 技術」、杉山昭彦、第
3 章「MPEG オーディオ技術」、pp.129-167、トリケップス、1993年12月。 12.
安田浩 編著、「マルチメディア符号化の国際標準」、海上重之、杉山昭彦、第
9 章、「ステレオオーディオ符号化」、pp.191-202、丸善出版、1991年6月。 学位論文 Akihiko
Sugiyama, ``Fast Convergence and Computationally
Efficient Algorithms for Adaptive Signal Processing in Communications（通信における適応信号処理のための高速収束、高演算効率アルゴリズムに関する研究）,”
東京都立大学学位論文、1998年2月。 規格原案 1.
日本工業規格
JIS×4332-3 「音響映像オブジェクトの符号化 ―第3部 音響―」、2002年3月。 2.
日本工業規格
JIS×4330 「動画信号及び付随する音響信号のはん用符号化 ―第7部 先進的音響符号化―」、2002年3月。 3.
日本工業規格JIS×4327
「動画信号及び付随する音響信号のはん用符号化
―第3部
音響―」、1998年1月。 4.
日本工業規格JIS×4323
「ディジタル記録媒体のための動画信号及び付随する音響信号の1.5Mbit/s符号化 ―第3部
音響―」、1996年11月。 登録済特許 国内特許 1.
Akihiko Sugiyama,
``Method of Identifying an Unknown System with a Band-Splitting Adaptive Filter
and a Device Thereof ," EPC Pat. 0615350B1, 2002. 2.
Akihiko Sugiyama,
`` Multi-channel Echo Cancelling Method and Apparatus," Jap. Pat. Appl.,
H10-248025, 2002. 3.
Akihiko Sugiyama,
``Method of Identifying an Unknown System with a Band Splitting Adaptive Filter
and Device Thereof," Jap. Pat. Appl., H9-306012, 2001. 4.
Akihiko Sugiyama,
``Adaptive Filter," Jap. Pat. Appl., H2-416931, 2001. 5.
Akihiko Sugiyama,
``Method of Identifying an Unknown System with a Band Splitting Adaptive Filter
and Device Thereof," Jap. Pat. Appl., H10-178025, 2000. 6.
Akihiko Sugiyama,
``Multi-channel Echo Cancelling Method and Apparatus," Jap. Pat. Appl.,
H09-320582, 2000. 7.
Akihiko Sugiyama,
``Method and Apparatus of Echo Cancellatioon," Jap. Pat. Appl., H04-070247,
2000. 8.
Akihiko Sugiyama,
``Method and Apparatus of Adaptive Transform Coding," Jap. Pat. Appl.,
H01-174636, 2000. 9.
Akihiko Sugiyama,
``Method of and Apparatus for Identifying Unknown System Using Adaptive
Filter," Jap. Pat. Appl., H04-061257, 2000. 10.
Akihiko
Sugiyama, ``Method and Apparatus of Adaptive
Transform Coding," Jap. Pat. Appl., H01-285803, 1999. 11.
Akihiko
Sugiyama, ``Method and Apparatus of Adaptive
Transform Coding," Jap. Pat. Appl., H01-285802, 1999. 12.
Akihiko
Sugiyama, ``Method of Identifying an Unknown System
with a Band Splitting Adaptive Filter and Device Thereof," Jap. Pat. Appl.,
H06-208592, 1999. 13.
Akihiko
Sugiyama, ``Method of and Apparatus for Identifying
Unknown System Using Adaptive Filter," Jap. Pat. Appl., H03-308687, 1999. 14.
Akihiko
Sugiyama, ``Interference Canceler with Tap Weight
Adaptation Control Using Stepsize Inversely Proportional to the Signal Power
Level," Jap. Pat. Appl., H03-296168, 1999. 15.
Tomokazu Ito and Akihiko Sugiyama, ``Sampling Phase Control
Circuit," Jap. Pat. Appl., H05-337684, 1999. 16.
Yoko Kamemaru and Akihiko Sugiyama, ``Waveform Data
Compression Method," Jap. Pat. Appl., H03-192389, 1999. 17.
Akihiko
Sugiyama, ``Method and Apparatus of Adaptive
Transform Coding," Jap. Pat. Appl., H01-245514, 1999. 18.
Akihiko
Sugiyama, ``Method and Apparatus of Adaptive
Transform Coding," Jap. Pat. Appl., H01-245515, 1999. 19.
Akihiko
Sugiyama, ``Method and Apparatus of Adaptive
Transform Coding," Jap. Pat. Appl., H01-245516, 1999. 20.
Akihiko
Sugiyama, ``Method of and Apparatus for Identifying
Unknown System Using Adaptive Filter," Jap. Pat. Appl., H07-327671, 1998. 21.
Akihiko
Sugiyama, ``Multi-channel Echo Cancelling Method and
Apparatus," Jap. Pat. Appl., H08-002824, 1998. 22.
Akihiko
Sugiyama, ``Method and Apparatus for Controlling
Coefficients of Adaptive Filter," Jap. Pat. Appl., 04-061159, 1998. 23.
Akihiro Hirano and Akihiko Sugiyama, ``Multi-channel Echo
Cancelling Method and Apparatus," Jap. Pat. Appl., H03-049445, 1998. 24.
Akihiko
Sugiyama, ``Method and Apparatus of Transform
Coding," Jap. Pat. Appl., H01-324334, 1998. 25.
Akihiko
Sugiyama, ``Method and Apparatus of Transform
Coding," Jap. Pat. Appl., H01-170069, 1998. 26.
Akihiko
Sugiyama, ``Method and Apparatus of Adaptive
Transform Coding," Jap. Pat. Appl., H01- 312333, 1998. 27.
Toshiyuki Ishino and Akihiko Sugiyama, ``Speech
Decoder," Jap. Pat. Appl., H05-166735, 1993. 28.
Akihiko
Sugiyama, ``Method and Apparatus of System
Identification by an Adaptive Filter," Jap. Pat. Appl., H05-045145, 1993. 29.
Tomokazu Ito and Akihiko Sugiyama, ``Sampling Phase
Extraction Circuit," Jap. Pat. Appl., H04-242466, 1992. 30.
Akihiko
Sugiyama, ``Method and Apparatus of System
Identification," Jap. Pat. Appl., H03-031503, 1991. 31.
Akihiko
Sugiyama, ``Method and Apparatus of System
Identification by an Adaptive Filter," Jap. Pat. Appl., H02-416129, 1990. 32.
Shigeji Ikeda and Akihiko Sugiyama, ``Controlling Method
and Apparatus for an Adaptive Filter," Jap. Pat. Appl., H02-066401, 1990. 33.
Akihiko
Sugiyama, ``Method and Apparatus of Transform
Coding," Jap. Pat. Appl., H01-324335, 1989. 34.
Akihiko
Sugiyama, ``Method and Apparatus of Transform
Coding," Jap. Pat. Appl., H01-324333, 1989. 35.
Akihiko
Sugiyama, Masahiro Iwadare, and Takao Nishitani,
``Method and Apparatus of Transform Coding," Jap. Pat. Appl., H01-297010,
1989. 36.
Akihiko
Sugiyama and Takao Nishitani, ``Method and Apparatus
of Transform Coding," Jap. Pat. Appl., H01-170070, 1989. 37.
Akihiko
Sugiyama, ``Method and Apparatus of Transform Coding
and Decoding," Jap. Pat. Appl., H01-170068, 1989. 38.
Akihiko
Sugiyama, M. N. S. Swamy, and Eugene I. Plotkin,
``Method and Apparatus of Noise Cancellation by an Adaptive Filter," Jap.
Pat. Appl., S63-326848, 1988. 39.
Akira Kanemasa and Akihiko Sugiyama, ``Echo
Canceller," Jap. Pat. Appl., S62-003985, 1988. 外国特許 1.
Akihiko Sugiyama,
``Method and Apparatus of Canceling Echoes in Multi-channel," US Pat.
6442274B1, 2002. 2.
Akihiko Sugiyama,
``Method and Apparatus of Canceling Echoes in Multi-channel," Can Pat.
2281320, 2002. 3.
Akihiko Sugiyama,
``Method and Apparatus for Controlling Coefficients of adaptive filter,"
EPC Pat. 0715407, 2002. 4.
Akihiko Sugiyama,
``Unknown System Identification by Subband Adaptive Filters and Device
Thereof," US Pat. 6396872B1, 2002. 5.
Akihiko Sugiyama,
``Method and Apparatus for Canceling Multi-channel Echo," Can Pat. 2234738,
2001. 6.
Akihiko Sugiyama,
``Method and Apparatus Capable of Quickly Identifying an Unknown System with a
Final Error," EPC Pat. 0700155, 2000. 7.
Akihiko Sugiyama,
``Interference Canceler with tap Weight Adaptation Control Using Stepsize
Inversely Proportional to the Signal Power Level," EPC Pat. 0483845, 1999. 8.
Akihiko Sugiyama,
``Method and an Apparatus for Unknown System Identification," US Pat.
5867486, 1999. 9.
Akihiro Hirano and Akihiko Sugiyama,
``Multi-channel Echo Cancelling Method and Apparatus," EPC Pat. 0503660,
1998. 10.
Akihiko
Sugiyama, ``Method and Apparatus for Controlling
Coefficients of Adaptive Filter," US Pat. 35867, 1998. 11.
Akihiko
Sugiyama, `` Method of Identifying an Unknown System
with a Band-Splitting Adaptive Filter and a Device," Can. Pat. 2118654,
1998. 12.
Akihiko
Sugiyama, ``Method of and Apparatus for Identifying
Unknown System Using Adaptive Filter," EPC Pat. 0525772, 1997. 13.
Akihiko
Sugiyama, ``Method of and Apparatus for Identifying
Unknown System Using Adaptive Filter," Can. Pat. 2074782, 1997. 14.
Akihiko
Sugiyama, ``Method and Apparatus for Controlling
Coefficients of Adaptive Filter," EPC Pat. 0500096, 1997. 15.
Akihiko
Sugiyama, ``Variable Length Block Coding with
Changing Characteristics of Input Samples," EPC Pat. 0405591, 1997. 16.
Akihiko
Sugiyama, ``Method and Apparatus Capable of Quickly
Identifying an Unknown System with a Final Error Reduced," US Pat. 5657349,
1997. 17.
Toshiyuki Ishino and Akihiko Sugiyama, ``Speech Signal
Decoding Apparatus and Method Therefor," US Pat. 5581651, 1995. 18.
Tomokazu Ito and Akihiko Sugiyama, ``Sampling Phase Control
Circuit," US Pat. 5485113, 1995. 19.
Akihiko
Sugiyama, ``Method of Identifying an Unknown System
with a Band Splitting Adaptive Filter and Device Thereof," US Pat. 5517435,
1994. 20.
Akihiko
Sugiyama, ``Method and Apparatus for Rapid
Identification of an Unknown System Based on an Echo Signal Having Plurality of
Dispersive Portions," Can. Pat. 2117035, 1994. 21.
Akihiko
Sugiyama, ``Method and Apparatus for Rapid
Identification of an Unknown System Based on an Echo Signal Having Plurality of
Dispersive Portions," US Pat. 5455819, 1994. 22.
Tomokazu Ito and Akihiko Sugiyama, ``Sampling Phase Control
Circuit," US Pat. 5450457, 1994. 23.
Akihiko
Sugiyama, ``Method and Apparatus for Controlling
Coefficients of Adaptive Filter," Can. Pat. 2061527, 1992. 24.
Akihiko
Sugiyama, ``Method and Apparatus for Controlling
Coefficients of Adaptive Filter," US Pat. 5329472, 1992. 25.
Akihiro Hirano and Akihiko Sugiyama, ``Multi-channel Echo
Cancelling Method and Apparatus," Can. Pat. 2063037, 1991. 26.
Akihiro Hirano and Akihiko Sugiyama, ``Multi-channel Echo
Cancelling Method and Apparatus," US Pat. 5396554, 1991. 27.
Akihiko
Sugiyama, ``Adaptive Filter Capable of Quickly
Identifying an Unknown System," Aus. Pat. 0648621, 1991. 28.
Akihiko
Sugiyama, ``Adaptive Filter Capable of Quickly
Identifying an Unknown System," Can. Pat. 2058495, 1991. 29.
Akihiko
Sugiyama, ``Adaptive Filter Capable of Quickly
Identifying an Unknown System," EPC Pat. 0492647, 1991. 30.
Akihiko
Sugiyama, ``Adaptive Filter Capable of Quickly
Identifying an Unknown System," US Pat. 5245561, 1991. 31.
Shigeji Ikeda and Akihiko Sugiyama, ``Circuit for
Controlling Tap Gains at Rapid Speed in an Adaptive Filter," Can. Pat.
2038305, 1990. 32.
Akihiko
Sugiyama, Masahiro Iwadare, and Takao Nishitani,
``Adaptive Transform Coding by Selecting Optimum Block Lengths according to
Variations between Successive Samples," EPC Pat. 0428156, 1990. 33.
Akihiko
Sugiyama, Masahiro Iwadare, and Takao Nishitani,
``Adaptive Transform Coding by Selecting Optimum Block Lengths according to
Variations between Successive Samples," US Pat. 5235623, 1990. 34.
Akihiko
Sugiyama, ``Tap-weight Adaptation Control Using
Stepsize Inversely Variable with Signal Power Level", US Pat. 5192918,
1990. 35.
Akihiko
Sugiyama, ``Variable Length Block Coding with
Changing Characteristics of Input Samples," US Pat. 5166686, 1990. 以上
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