Akio Hashima
Panasonic
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Publication
Featured researches published by Akio Hashima.
IEEE Transactions on Consumer Electronics | 1980
Takeshi Sato; Akio Hashima; Yumio Kawai
It has become necessary to improve the performance of UHF varactor tuners with the recent popularization of UHF TV broadcasting. Their performance is generally poor in noise figure, cross modulation and image signal immunity.
The Journal of The Institute of Image Information and Television Engineers | 1976
Takeshi Sato; Akio Hashima; Reiichi Sasaki
CATVの普及により多数チャンネルを受信する場合, チャンネル間の妨害が最も問題となる.混合器を含む受信回路では, 混合素子の伝達特性の2次の非直線成分により, 他チャンネルの受信チャンネルへの妨害が本質的に発生する.筆者らは, 混合素子の妨害信号特性を評価するとともに, この妨害を避ける周波数関係を解析し, 最適な周波数変換方式を求めることにより, 多数チャンネル受信に適した回路設計法を提案した.
Archive | 1985
Masahiro Honjo; Akio Hashima
Archive | 1984
Masao Tomita; Akio Hashima
Archive | 1984
Masao Tomita; Akio Hashima; Haruo Ohta; Tadaaki Matsuo
Archive | 1987
Masao Tomita; Akio Hashima
Archive | 1983
Akio Hashima; Masao Tomita
Archive | 1976
Yasuo Fujii; Reiichi Sasaki; Akio Hashima; Shinichi Matsushita; Sankichi Shinta
IEEE Transactions on Consumer Electronics | 1981
Tomoki Uwamo; Hirokazu Kitamura; Akio Hashima
Archive | 1983
Masao Tomita; Akihiro Takeuchi; Akio Hashima
