The 9th scientific workshop presented by the 19th URSI-C in Japan 1.    Convener: Satoshi Tsukamoto, Advanced Telecommunications Reserch Institute International 2.    Date/time: 13:00 -16:35, January 06, 2006 3.    Venue: Shimei-so, a resort house of Nippon Telephone and Telegram Health Insurance Association (Minakami, Gunma Prefecture, Japan) 4.    Registration fee: Free 5.    Listed attendees: 21 persons 6.    Local arrangement: Advanced Telecommunications Reserch Institute International 7.    Session title: “Radio Waves and Radio Receiver, History from crystal radio to Software Defined Radio and Cognitive” 8.    Presentations: 50 min including Q&A for each speaker (a) “History of transmitter and receiver architectures”         Speaker: Dr. Makoto TAROMARU, Wave Engineering Laboratories, Advanced Telecommunications Reserch Institute Intrenational. (b) “Technical Trends of RF signal Sampling Method for Realization of Software Defined Radio ”         Speaker: Associate Professor Yukitoshi SANADA, Keio University. (c) “Development of Analog-Digital Converter Chips for Software Radio Receivers”        Speaker: Mr. Takafumi YAMAJI, Corporate R&D Center, Toshiba Corporation. (d) “Cognitive radio technique serves ubiquitously connected environment”        Speaker: Dr. Hiroshi HARADA, Yokosuka Radio Communications Research Center, National Institute of Information and Communications Technology 9.    Banquet         Venue: at saloon in Shimei-So         Attendees: 13 persons 10.    The steering committee meeting took place from 9:00 to 10:00 on January 07, 2006. 11.    Concluding The presentations started from old radio set that has the vacuum tube covered few places for cost down, to software defined radio set that had innumerable transistors. The ideas and efforts by old engineers impressed and should be copied by engineers of today. Dr. Taromaru presented idea and working principle of the existing radio sets with showing its circuit diagram. Professor Sanada presented comparisons of sampling methods and devices that dominate variations and performance of software defined radio sets. And then, Mr. Yamaji presented A/D converter that is key device for software defined radio set, problems that should be resolved for example increase of power consumption at high speed, trends and result of his research. Finally, Dr. Harada introduced his radio set that had developed for several years and presented the future transceivers. A banquet was held with a lot of talk. It was continually discussed difference between old and new radio set components and technical problems for making a software defined radio set at the room. In spite of the inconvenient traffic access in the record heavy snow on that day and the next day of the workshop, all expected participants could join the workshop, and it ended without problems.

The 10th scientific workshop presented by the 19th URSI-C in Japan 1.    Convener: Mr. Toru Maniwa, Fujitsu Labs. Ltd. 2.    Date/time: 12:30 -17:00, May 12th, 2006 3.    Venue: Seminar room of Faculty of Science and Engineering, Saga University (Saga, Japan) 4.    Registration fee: Free 5.    Listed attendees: 26 persons 6.    Local arrangement: Aikawa Lab., Saga Univercity. 7.    Session title: “Millimeter-wave Renaissance” 8.    Presentations: 60 min including Q&A for each speaker (a) “The renaissance of dielectric waveguides”         Speaker: Prof. Futoshi Kuroki, Kure National college of Tech. (b) “Millimeter-wave Gigabit Wireless Technology and System Applications”         Speaker: Mr. Kenichi Maruhashi, NEC corp. (c) “High-speed signal processing technique in optical communication systems”        Speaker: Dr. Hideyuki Nosaka, NTT Corp. (d) “The Present State of Research and Development of Multi-Gigabit Wireless LAN Systems”        Speaker: Dr. Amane Miura, ATR Wave Engineering Laboratories 9.    Banquet         Venue: Furuyu-Kakureisen, Saga, Japan         Attendees: 12 persons 10.    The steering committee meeting took place from 8:30 to 9:45 on May. 13th, 2006. 11.    Concluding This workshop entitled, "Millimeter-wave Renaissance", and was described from a wide viewpoint of the system, the waveguide, the filter, the oscillator, the module, the clock reproduction, the equalizer, the antenna, and security, etc. about the recent development of the millimeter wave. The discussion was actively carried out though they were few 26 participants. Especially, it was discussed which is better way to transmit digitalized data or analog modulated data on millimeter wave. All participated students told their impressions. Moreover, RFID system that was one of the next workshop themes was explained as the ramp session.