noun
communications laboratory; communications research institute
Refers to a facility or organization dedicated to research and development in telecommunications, networking, or signal processing.
彼は通信研究所で新しい暗号技術を開発している。
He is developing new encryption technology at the communications research institute.
Compound of 通信 (tsūshin, 'communication') + 研究所 (kenkyūsho, 'research institute').