Fuji Xerox Co., Ltd.

Akira Toshima

Kenichi Kobayashi

Kazuhiro Sakai

Tsutomu Hamada

Junji Okada

Masao Funada

Shinobu Ozeki

Shinya Kyozuka

Takehiro Niitsu

Takeshi Kamimura

Tomo Baba

Hidenori Yamada

Masaaki Miura

Osamu Takanashi

Kazuhiro Suzuki

Osamu Ueno

Yoshihide Sato

Masaru Kijima

Masashi Hisada

In an optical transmission apparatus in which a plurality of nodes are optically connected to one another via an optical transmission path, a light signal which is coded so that a mixture ratio of 1 and 0 constituting data is made close to 50% is transmitted through the optical transmission path. When a light signal is not emitted from all of the nodes, a dummy signal which is an AC-like signal is emitted to the optical transmission path. Therefore, an optoelectric conversion section can be always set to an active state, and the signal recognizability can be prevented from being lowered.

Optical transmission apparatus

An optical busoptically connects each board of a signal processing sectionand each board of a transmission/reception sectionfor transmitting an optical signal output to the optical busby each board of the signal processing sectionto each board of the transmission/reception sectionin a non-block state. In contrast, the optical bustransmits an optical signal output to the optical busby each board of the transmission/reception sectionto each board of the signal processing sectionin a non-block state.

Radio communication apparatus

Growing community of inventors

Kanagawa, Japan

Akira Toshima