Abstract: Terminal(s) 15 may transmit optical signal(s) representing video data conforming to DV-format signal transmission protocol(s) to optical transmission apparatus(es) 11 by way of optical fiber(s) 14. At optical transmission apparatus(es) 11, such optical signal(s) may be converted into electrical signal(s) by optical transceiver(s) 22, and such electrical signal(s) may be converted into signal(s) conforming to specifications of state machine(s) 16 and may be output. Microcomputer(s) 17 and link interface(s) 18 may be connected to state machine(s) 16 and may provide application protocol conversion functionality or functionalities 24 thereto. Such functionality or functionalities may allow the foregoing signal(s) to be converted into signal(s) representing MPEG-2TS-format video data, and such signal(s) produced as a result of conversion may be output to DS port(s) 19.

Abstract: In an optical transmitter-receiver module for performing optical transmission and reception by using a single-core optical fiber, a light-tight partition plate unit 506 for separation between an optical path of a transmission signal light and an optical path of a reception signal light is held between a jack section 508 for detachably holding an optical plug 240 and a light emitting/receiving unit 505 having an LED 514 and a PD 515 positioned and fixed in place and molded in one piece.

Abstract: In order to be usable in combination with various receptacles without drawbacks, a plug for an optical connector has a plug tip section defining an optical reference plane that is to coincide with an optical reference plane in a receptacle, and at distances behind the optical reference plane with respect to an insertion direction, the plug has a first mechanical reference plane that is able to be brought into contact with an element within the receptacle, and a second mechanical reference plane that is able to be brought into contact with a front of the receptacle.

Abstract: The connector of the present invention is capable of insertion and removal of a plug having an unmoving section and a moving section that is movable with respect to the unmoving section. The connector includes a plug fixing member for fixing the unmoving section by movement of the moving section and the unmoving section in a plug insertion direction along with insertion of the plug into the connector, and for releasing the unmoving section by shifting of the moving section with respect to the unmoving section in a plug removal direction. On this account, it is possible to fix and release the plug according to the movement of the moving section of the plug.

Abstract: In an optical transmitter-receiver module for performing optical transmission and reception by using a single-core optical fiber, a light-tight partition plate unit 506 for separation between an optical path of a transmission signal light and an optical path of a reception signal light is held between a jack section 508 for detachably holding an optical plug 240 and a light emitting/receiving unit 505 which has an LED 514 and a PD 515 positioned and fixed in place and molded in one piece. The LED 514 is located at a larger distance in a direction of optical axis from the optical fiber than the PD 515 is.

Abstract: In an optical transmitter-receiver module for performing optical transmission and reception by using a single-core optical fiber, a light-tight partition plate unit 506 for separation between an optical path of a transmission signal light and an optical path of a reception signal light is held between a jack section 508 for detachably holding an optical plug 240 and a light emitting/receiving unit 505 which has an LED 514 and a PD 515 positioned and fixed in place and molded in one piece. The LED 514 is located at a larger a distance in a direction of optical axis from the optical fiber than the PD 515 is. The partition plate unit 506 is urged toward the optical fiber by springs.

Abstract: The present invention is composed of a mainframe 2 having a holder portion 2a for detachably holding an optical plug provided on an optical fiber end portion. An input/output board 6 is disposed on the lower side of the mainframe 2, and on the lower face of the input/output board 6, there is provided an electrode portion enabling electric connection by contact pressure. On the lower side of the mainframe 2, there are provided support portions 12, 13 and a peripheral portion 9 protruding downward from the lower face of the input/output board 6, and with use of a screw hole 7 provided on the side of the holder portion 2a of the mainframe 2, the mainframe 2 is fixed to a mounting board 21 with a screw 31.

Abstract: In an optical transmitter-receiver module for performing optical transmission and reception by using a single-core optical fiber, a light-tight partition plate unit 506 for separation between an optical path of a transmission signal light and an optical path of a reception signal light is held between a jack section 508 for detachably holding an optical plug 240 and a light emitting/receiving unit 505 which has an LED 514 and a PD 515 positioned and fixed in place and molded in one piece. The LED 514 is located at a larger distance in a direction of optical axis from the optical fiber than the PD 515 is.

Abstract: In an optical transmitter-receiver module for performing optical transmission and reception by using a single-core optical fiber, a light-tight partition plate unit 506 for separation between an optical path of a transmission signal light and an optical path of a reception signal light is held between a jack section 508 for detachably holding an optical plug 240 and a light emitting/receiving unit 505 which has an LED 514 and a PD 515 positioned and fixed in place and molded in one piece. The LED 514 is located at a larger a distance in a direction of optical axis from the optical fiber than the PD 515 is. The partition plate unit 506 is urged toward the optical fiber by springs.

Abstract: An optical transmitter-receiver module has a light-emitting element for emitting transmission signal light and a light-receiving element for receiving reception signal light, and performs both transmission of the transmission signal light and reception of the reception signal light by means of a single-core optical fiber. A light-emitting device 91 having the light-emitting element is covered with an upper shield plate 93 and a lower shield plate 94 each provided by a conductive metal plate while being held between the plates. Connection terminals 95 and 96 of the upper shield plate 93 and the lower shield plate 94, which are extended in a direction in which lead terminals 99 of the light-emitting device 91 are extended, are connected to grounding terminals included in the lead terminals 99.

Abstract: In an optical transmitter-receiver module for performing optical transmission and reception by using a single-core optical fiber, a light-tight partition plate unit 506 for separation between an optical path of a transmission signal light and an optical path of a reception signal light is held between a jack section 508 for detachably holding an optical plug 240 and a light emitting/receiving unit 505 having an LED 514 and a PD 515 positioned and fixed in place and molded in one piece.

Abstract: The connector of the present invention is capable of insertion and removal of a plug having a male engaging section and a moving section that is movable with respect to the male engaging section. The connector includes a plug fixing member for fixing the male engaging section when the moving section is shifted in a plug insertion direction with the insertion of the plug, and for releasing the male engaging section thus fixed when the moving section is shifted in a plug removal direction. On this account, it is possible to fix and release the plug according to the movement of the moving section of the plug.

Abstract: An electronic apparatus comprising a detecting unit, a communications unit, and a power control circuit. The power control circuit supplies power to a communication circuit unit based upon a result of detection of the detecting unit.

Abstract: An optical communication apparatus in which bidirectional communication may be made over a sole optical fiber. A light emitting device (132) radiates light through an optical system (133) to an optical fiber (76). The light transmitted from the optical fiber (76) is received over optical system (133) by a light receiving device (136). In the optical system (133), such a relationship S−2QN≧M>S/2Q−N is set, where M is the light volume of the stray light emitted, Q is the value of a Q-value representing the communication quality as required, S is the light volume of a received signal from a communication partner and N is the sum total of the Gaussian noise.

Abstract: In an optical transmit-receive module, an optical fiber plug connected with an optical fiber for optical transmission is removably inserted in a housing. Within the housing, there are provided a branching type light guide, and an optical semiconductor device giving an optical signal to the branching type light guide and receiving an optical signal from the branching type light guide. When the optical fiber plug is inserted in the housing, it is optically connected with the branching type light guide through a light-permeable member having a refractive index approximately equal to refractive indices of the optical fiber and the branching type light guide.

Abstract: An optical transmission and receiving module includes a light source; a light receiving element; and a light branching element for causing signal light from the light source to be incident on an optical fiber and causing signal light output from the optical fiber to be incident on the light receiving element. The light branching element includes a prism array including a plurality of triangular prisms arranged at substantially an identical pitch on a plane extending substantially perpendicular to an imaginary line connecting the light source and the light receiving element.

Abstract: A plug-jack type transfer device includes: at least seven electric terminals for connecting a mini single-head electric plug to the transfer device and exchanging an electrical signal therewith; a container body for containing and supporting the electric terminals and receiving the mini single-head electric plug; and a switch mechanism which completes electrical connection between a fourth electric terminal and a sixth electric terminal when the mini single-head electric plug is inserted into the container body. The mini single-head electric plug includes at least seven regions. A region farthest from a plug tip electrode corresponds to a first region.

Abstract: An optoelectronic device for sensing an object without any contact, the optoelectronic device being adapted to be connected to a control device which is capable of sending an identification code to the optoelectronic device, the optoelectronic device includes an optoelectronic element (110, 111) for receiving an input signal and for converting the received signal into an electrical signal, an address memory (121) for storing a self identification code, a determining unit (126) connected to the address memory (121) for determining a coincidence between the self identification code stored in the address memory (121) and the identification code sent from the control device, and an activating unit (127) connected to the determining unit (126) for driving the optoelectronic element (110, 111) at a time when the self identification code coincides with the identification code.