Optical transmitting apparatus, optical receiving apparatus, and optical transmitting-receiving system

摘要

An optical transmitting apparatus comprises: identification level output means which outputs identification level information which is required when the logical level of each transmission data is determined by a received signal, which has been made an optical-to-electrical conversion by an opposing optical receiving apparatus; and a light emitter for identification level which performs an electrical-to-optical conversion of the identification level information from the identification level output means and irradiates toward a light transmitting path for exclusive use with the identification level information. On the other hand, An optical receiving apparatus, comprising: a light sensing means for identification level which performs an optical-to-electrical conversion of an optical signal arrived via a light transmitting path for exclusive use with identification level information for logical level identification of the data, which data having been transmitted in the same way by the optical transmitting apparatus; and identification level supplying means which outputs an identification level determined by an electric signal from the light sensing means for identification level.