Fuji Xerox Co., Ltd.

Fuji Photo Film Company, Limited

Masao Funada

Junji Okada

Kazuhiro Sakai

Tsutomu Hamada

Shinobu Ozeki

Kenichi Kobayashi

Masaki Hirota

Takashi Ozawa

Takeshi Kamimura

Shinya Kyozuka

Masaaki Miura

Takehiro Niitsu

Tomo Baba

Hidenori Yamada

Osamu Takanashi

Masahiro Taguchi

Kenji Kawano

Hiroshi Fujimagari

Kazuhiro Suzuki

Osamu Ueno

Hiroki Ishida

Yoshihide Sato

Masaru Kijima

Masashi Hisada

Norikazu Yamada

Takekazu Shiotani

Akira Toshima

Seiji Suzuki

Akira Sakamoto

Hideo Nakayama

Hiroki Murakami

Jun Sakurai

Yasuhiro Arai

Hirotaka Mori

Hisayoshi Mori

Kazuhiro Hama

Kazuhisa Ando

Norihiko Kuroishi

Jun Kitamura

Kunihiro Seno

Toshiki Matsui

Tsuyoshi Yaguchi

Shinya Kyouzuka

The present invention provides a video signal transmission apparatus including: an optical transmitter that uni-directionally transmits video data from a video source; an optical receiver that receives the video data and outputs the received video data to a sink device; a first transmission medium that transmits the video data at a high speed; a second transmission medium that transmits identification information for identifying the sink device at a low speed; an identification information acquisition control section that acquires the identification information from the sink device; a storage section that stores general-purpose identification information used for plural types of sink devices; a acquisition possibility determination section that determines whether the identification information can be acquired from the sink device; and a general-purpose identification information reply control section that replies the stored general-purpose identification information to the video source device if determined that the identification information cannot be acquired.

Video signal transmission apparatus, identification information acquisition method for video signal transmission system and computer readable medium storing identification information acquisition program for video signal transmission system

A signal communication apparatus includes a transmission component, a reception component and an identification information storage component. The transmission component is connectable to an information processing device and a signal propagation medium, and transmits an inputted image signal through the connected signal propagation medium. The reception component is connectable with an image display device and the signal propagation medium, receives the image signal transmitted from the transmission component through the connected signal propagation medium, and outputs the image signal to the connected image display device. The identification information storage component is removably attached to the transmission component, and stores identification information for identifying the image display device. The information processing device acquires the identification information from the identification information storage component connected to the connected transmission component, and outputs the image signal to the connected transmission component in accordance with at least a portion of the acquired identification information.

Signal communication apparatus and signal communication system

A semiconductor storage device includes an external input/output port. A system bus of a server, which is extended to outside of the server, is connected to the external input/output port directly as a serial interface.

Semiconductor storage device and storage system

An electronic apparatus includes: a first frame and a second frame that are relatively movable; a frame boundary portion that is provided between the first frame and the second frame; a light emitting portion that is provided on the first frame and transmits an optical signal; a light receiving portion that is provided on the second frame and receives the optical signal; and an optical transmission medium that transmits the optical signal between the frame boundary portion and at least one of the light emitting portion and the light receiving portion, wherein an optical transmission between the light emitting portion and the light receiving portion via the optical transmission medium is effected at the frame boundary portion by a spatial optical transmission.

Electronic apparatus

The first and second light-emitting regions are provided on the light source. When the first optical fiber having the first core diameter is connected, the light emitted from the first light-emitting region enters the first core. When the second optical fiber having a greater core diameter than the first core diameter is connected, the lights emitted from the first and second light-emitting regions enter the second core. It is thus possible to connect the optical transmission device with multiple optical fibers having different core diameters. It is thus possible to provide the optical transmission device and the communication device, which are low in cost and high in convenience.

Optical transmission device that employs vertical cavity surface-emitting laser diode as light source

A multifunction system has advanced functions and high speed capability and is excellent in expandability. The multifunction system includes a controller, an IIT, an IOT, and a light distributing device. For a print job, print data outputted from the controller is converted into optical signals, which enter a light distributing device and are transmitted to the IOT of the emission side. The IOT prints the received data onto a printer. For a copy job, copy data outputted from IIT is converted into optical signals, which enter the light distributing device, and are transmitted to the IOT of the emission side. For a scan job, scan data outputted from the scanner is converted into optical signals, which enter the light distributing device, and are transmitted to the controller of the emission side. The controller processes the received data.

Multifunction system

A signal transmission system has a master node and plural slave nodes performing data transmission with the master node. The master node has a serial-to-parallel converter for converting a serial data signal from each slave node into a parallel data signal. Each slave node has a transmission aligner for performing word alignment processing upon a parallel data signals, and a parallel-to-serial converter for converting the parallel data signal subjected to the word alignment processing by the transmission aligner into a serial data signal, and outputting the serial data signal to the master node.

Signal transmission system

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

In an optical wiring board, an optical components including a planar optical waveguide, a plurality of first optical fibers optically connected via a transmissive diffusion plate to a light incident face of the waveguide, and a plurality of second optical fibers optically connected to a light emitting face of the waveguide is placed on a support board. The optical component is sealed by a sealing member made of a resin.

Optical wiring board, optical bus system, and method of manufacturing optical wiring board

In a device of the present invention for allowing signal light to enter a light guide body using an optical fiber, a light guide body, which is constituted by dispersing particles for scattering the signal light in an optical medium, is selected as a light guide path which requires an area where a light diffusing function is performed just after incidence of the signal light. An optical connecting material intervenes between one end of the optical fiber from which the signal light is output and opposed one end surface of a particle dispersing light guide body and a desired diffusing function is obtained.

Light signal transmitting device and signal processing device

A first optical wave guideand a second optical wave guideare connected to both sides of a planer optical waveguiderespectively. The other endsof the first and second optical wave guidesare extended over an upper surfaceof an optical wiring circuit board. An electric wiring circuitis connected to the other endsof the first and second optical wave guides, thereby constituting an optical wiring circuit. A plurality of optical wiring circuitsare superimposed on one another to thereby form an optical wiring circuits layered body. The electric wiring circuitcan be connected from one surface of the optical wiring circuit board, which makes it possible to facilitate the connection thereof.

Optical wiring circuit, optical wiring circuits layered body and opto-electric wiring apparatus

The invention relates to a multiprocessor system having plural processors and an optical bus shared by the plural processors, and intends to simplify the cache control, reduce the volume of hardware, and shorten the memory access processing time. For this purpose, the multiprocessor system of the invention includes a shared memory, a cache memory connected to the shared memory, an optical bus connected to the cache memory, and plural processors connected to the optical bus, which access to the cache memory through the optical bus.

Multiprocessor system

An optical bus system comprising an optical bus is furnished, along two opposed edges, with a plurality of signal light input/output portions for inputting and outputting signal light to and from the bus. Any one of the signal light input/output portions on one edge of the bus inputs signal light thereto and propagates the light to the opposite edge at which another signal light input/output portion outputs the propagated signal light from the bus. The system also comprises a plurality of light emitting/receiving circuits corresponding to the signal light input/output portions. Each light emitting/receiving circuit has a signal light sending unit and a signal light receiving unit. The signal light sending unit generates signal light and sends the generated signal light into the optical bus through the corresponding signal light input/output portion. The signal light receiving unit acquires a received light signal upon receipt of the signal light output by the corresponding signal light input/output portion. At least one of the light receiving/emitting circuits on each edge of the optical bus has a repeating or reflecting part that causes the corresponding signal light sending unit to send out the signal light received by the corresponding signal light receiving unit.

Optical bus system and signal processor

The present invention provides a multiple bus control device and others which can also be applied to access control by a signal having a directional propagation property for implementing various communication between/among modules. Each of plural modules makes a request for communication to a multiple bus control device by sending communication request information for specifying one or more communication partner modules to the multiple bus control device. The multiple bus control device checks an idle state of a module to be communicated and an idle channel in a multiple bus based upon received communication request information and permits communication between a module which sends communication request information using the idle channel and a communication partner module specified in the communication request information.

Communication device, multiple bus control device and LSI for controlling multiple bus

Growing community of inventors

Kanagawa, Japan

Masao Funada