Loading patent…
OwnerYoshifumi Masuda, Takayuki Shimizu +1inventors
InventorsYoshifumi Masuda, Takayuki Shimizu, Yasukazu Kuwamura
Estimating the term…
In an optical receiver circuit chip, which constitutes an optical fiber link and converts a received optical signal into an electrical signal for communication, shutdown function is added to a bias circuit, which supplies power to an internal circuit such as a photodiode, amplifiers, a comparator and a buffer. Furthermore, a shutdown control circuit is provided in order to cause the bias circuit to perform a shutdown control in response to whether or not a plug for a transmission medium such as an optical fiber is inserted to a corresponding jack and in response to an shutdown signal inputted to a shutdown input terminal in accordance with user's operation. Therefore, the shutdown control can be realized with lower cost and smaller substrate space compared with a case where a regulator IC is separately used.
An optical communication circuit chip for converting an electrical signal into an optical signal, and communicating by using the optical signal, comprising:
An electronic apparatus including an optical communication circuit chip for converting an electrical signal into an optical signal, and communicating by using the optical signal, wherein:
An optical/electrical common transmission apparatus including (a) a circuit section having a light-electricity converting element and (b) a light-electricity common jack section, the optical/electrical common transmission apparatus being capable of transmitting an optical signal via a transmission medium for the optical signal when a plug for the optical signal connected to an end of the transmission medium is inserted into the light-electricity common jack section, and capable of transmitting an electrical signal via a transmission medium for the electrical signal when a plug for the electrical signal, which has a similar shape to that of the plug for the optical signal, connected to an end of the transmission medium is inserted into the light-electricity common jack section, wherein:
An electronic apparatus comprising an optical/electrical common transmission apparatus, wherein:
An optical transmission apparatus for performing optical transmission via an optical fiber, comprising (a) a circuit section having a light-electricity converting element, and (b) a jack section, into which a plug, connected to an end of the optical fiber, is inserted to enable the optical transmission apparatus to perform optical transmission, wherein:
An electric apparatus comprising an optical transmission apparatus for performing optical transmission via an optical fiber, comprising (a) a circuit section having a light-electricity converting element, and (b) a jack section, into which a plug, connected to an end of the optical fiber, is inserted to enable the optical transmission apparatus to perform optical transmission, wherein:
Dependencies are inferred from the claim text.