Kouichi YAMAZAKI


A Study on Secret Key Reconciliation Protocol "Cascade"
Tomohiro SUGIMOTO  Kouichi YAMAZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/10/20
Vol. E83-A  No. 10  pp. 1987-1991
Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Cryptography and Information Security
Keyword: 
quantum key distributionquantum cryptographysecret key reconciliation
  Summary |  Full Text:PDF (199.5KB)

Application of New Photodetection Process to Quantum Communication
Kouichi YAMAZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/09/20
Vol. E75-A  No. 9  pp. 1052-1056
Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
optical communicationquantum noiseshot noise limitsqueezed stateand homodyne detection
  Summary |  Full Text:PDF (339KB)

Properties of Photon Distribution of Squeezed State in Loss Channel
Seitetsu BUN  Kazushige YONENAGA  Kouichi YAMAZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/09/20
Vol. E74-A  No. 9  pp. 2586-2595
Type of Manuscript: Special Section PAPER (Special Issue on Information Theory and Its Applications)
Category: 
Keyword: 
  Summary |  Full Text:PDF (582KB)

Properties of Photon Counting System with Squeezed State Signal in Loss Channel
Seitetsu BUN  Kouichi YAMAZAKI  Osamu HIROTA  Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/09/20
Vol. E72-E  No. 9  pp. 953-956
Type of Manuscript: LETTER
Category: Optical Communication
Keyword: 
  Summary |  Full Text:PDF (231.1KB)

Effect of Asymmetric Error Correcting Codes in Photon Communication Systems
Tomohiko UYEMATSU  Kouichi YAMAZAKI  Osamu HIROTA  Masao NAKAGAWA  Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/09/20
Vol. E71-E  No. 9  pp. 850-857
Type of Manuscript: PAPER
Category: Information Theory and Coding Theory
Keyword: 
  Summary |  Full Text:PDF (587.1KB)

Optimum Condition of Squeezed State Signal for Optical Communication with Energy Loss
Kouichi YAMAZAKI  Osamu HIROTA  Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/08/20
Vol. E71-E  No. 8  pp. 775-783
Type of Manuscript: PAPER
Category: Communication Theory
Keyword: 
  Summary |  Full Text:PDF (711.3KB)

Comparison between Photon Communication Systems and Quantum Coherent Communication Systems
Kouichi YAMAZAKI  Osamu HIROTA  Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/09/20
Vol. E70-E  No. 9  pp. 835-840
Type of Manuscript: PAPER
Category: Communication Theory
Keyword: 
  Summary |  Full Text:PDF (460.3KB)

Effect of Error Correcting Code in Photon Communications with Energy Loss
Kouichi YAMAZAKI  Osamu HIROTA  Masao NAKAGAWA  Tomohiko UYEMATSU  Masanori OHYA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/08/20
Vol. E70-E  No. 8  pp. 689-692
Type of Manuscript: LETTER
Category: Foundations of Signal Theory and Communication Theory
Keyword: 
  Summary |  Full Text:PDF (273.4KB)

Properties of Cutoff Rate for Photon Channels
Osamu HIROTA  Kouichi YAMAZAKI  Yota ENDO  Masao NAKAGAWA  Mikio TAKAHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/01/20
Vol. E70-E  No. 1  pp. 7-10
Type of Manuscript: LETTER
Category: Communication Theory
Keyword: 
  Summary |  Full Text:PDF (207.8KB)

Properties of Error Correcting Code Using Photon Pulse
Osamu HIROTA  Kouichi YAMAZAKI  Masao NAKAGAWA  Masanori OHYA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/09/20
Vol. E69-E  No. 9  pp. 917-919
Type of Manuscript: LETTER
Category: Communication Theory
Keyword: 
  Summary |  Full Text:PDF (210.6KB)