Class 398/73 - Bus

Subclass of Class 398 - Optical communications
Definition: Subject matter wherein the system consists of a series
No. of patents: 22
Last issue date: 08/04/2009

Number	Title	Issue Date
7570887	Optical network interface systems and devices Optical network interface systems and devices are described. In one embodiment of the present invention, an optical transport system comprises an optical bus capable of transmitting data signals, a plurality of optical bus interface modules connected to the optical ...	08/04/2009
7433601	Optical network and optical add/drop apparatus Provided are a plurality of fixed wavelength drop filters 35 demultiplexing optical signals having a plurality of different fixed wavelengths, a plurality of fixed wavelength add filters 36 provided corresponding respectively to the fixed wavelength dr...	10/07/2008
7386236	Multiple wavelength TDMA optical network A passive optical network which employs multiple wavelengths to increase overall system bandwidth, with each wavelength being shared by multiple optical network units (ONUs) according to a time division multiple access (TDMA) protocol. The upstream TDMA traffic ther...	06/10/2008
7366368	Optical add/drop interconnect bus for multiprocessor architecture An optical bus interconnects two or more processors in a multiprocessor system. One or more electrical-to-optical (“E-O”) transmitters are optically coupled to the optical bus using optical couplers. The E-O transmitters receive electrical signals from the proce...	04/29/2008
7308205	Optical transmission apparatus 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...	12/11/2007
7231475	Advanced bandwidth allocation in PCI bus architecture A bus arbitration system and method allocates total bus bandwidth between latency sensitive and latency insensitive interfaces by utilizing windows to divide the total bandwidth into latency sensitive and latency insensitive portions. Each interface is initially all...	06/12/2007
7203422	Optical network unit, wavelength splitter, and optical wavelength-division multiplexing access system In an optical wavelength division multiplexed access system, a center unit (OSU) and n optical network units (ONUs) are connected together via a wavelength splitter and optical fiber transmission lines, and downstream optical signals from the OSU to the ONUs and ups...	04/10/2007
7184669	Optical transceiver systems and methods Optical systems are provided. A representative optical system includes an optical transceiver with an optical source and an optical receiver. The system also includes an optical waveguide. At least one of the optical source and the optical receiver is optically coup...	02/27/2007
7054522	Bidirectional optical recirculation loop transmitting device This apparatus of bidirectional optical recirculation loop transmission enables bidirectional transmission system to be tested in the long transmission distance. Unidirectional optical recirculation loop is composed of two optical modulators and one 4-port optical c...	05/30/2006
7035541	Wavelength architecture and implementation for a photonically switched network The photonic network of the present invention uses a cost-effective DWDM optimized switch architecture allowing the introduction of DWDM into the metro network. In this invention the optical carriers are all generated in the photonic layer at the edge photonic switc...	04/25/2006
6823140	Optical computer bus with dynamic bandwidth allocation A signal communication device for use within a computer includes a set of optical fibers configured to form an optical computer bus between a set of computer sub-system elements of a computer. A set of input optical connector cards are connected to the set of optica...	11/23/2004
6782202	Optical communication method, optical linking device and optical communication system The system includes optical bus-bridging devices for observing the modes of said electric buses and the modes of said optical fibers while said electric buses have not been driven (OFF mode), so that the modes of the two electric buses connected through optical fibe...	08/24/2004
6728486	Communication system and method with optical management bus A communication system includes plural nodes interconnected with an optical transmission medium capable of carrying plural bands of optical channels. A device at each node is coupled to the medium for dropping one or more bands, adding one or more bands, and passive...	04/27/2004
5963348	Method for assignment of wavelength channels in an optical bus network Channels are assigned in an optical bus network, including N nodes connected in series to one another by way of a pair of optical fibers, which facilitate simultaneous, two-way communication between all nodes of the bus network. A second pair of optical f...	10/05/1999
5956169	Bidirectional optical burst transmission In bidirectional optical burst transmission using a single optical fiber, a signal is reliably discriminated even if reflected light is contained in a received optical signal. According to a first aspect of the invention, the received signal converted int...	09/21/1999
5457562	Narrowcast optical communication networks and methods Alternative methods and apparatus for introducing narrowcast transmission signals into a fiber optic broadcast network utilizing rare-earth-doped fiber amplifier technology are disclosed. The methods and apparatus include utilizing an existing 1480 nm pum...	10/10/1995
5119223	Bidirectional light waveguide (LWG) telecommunication system and method for wavelength separation mode (bidirectional wavelength separation mode (WDM) between a central telecommunication location and plurality of decentralized telecommunication locations In a bidirectional light waveguide telecommunication system having a passive light waveguide bus network extending between a switching center and a plurality of subscriber locations, only the switching center is designed for a normal bidirectional wavelen...	06/02/1992
5058101	Coherent detection loop distribution system An optical fiber point-to-multipoint communications network is disclosed of the type having a bus topology. The broadcasting terminal (101) of the network includes an information transmitting laser (102) and a local oscillator laser (103) the signals of w...	10/15/1991
4720160	Optical resonant cavity filters A wavelength filtering device and system in which an optical resonant cavity is laterally coupled to a trunk waveguide carrying a broad range of wavelengths in the optical spectrum. The filtering cavities may be linear optical fiber segments or fiber segm...	01/19/1988
4701904	Optical local area network employing microwave modulation techniques The present invention relates to an optical communication system wherein the entire microwave frequency bandwidth of the optical source-to-detector system is subdivided into a plurality of non-overlapping frequency bands or channels, and each user transmi...	10/20/1987
4464012	Broad-band communication system comprising an optical broad-band cable network Broad-band communication system comprising a broad-band cable network arranged between an exchange and a large plurality of subscriber's stations. The network is formed by optical fibers. In order to avoid extra attenuation caused by splices, the incoming...	08/07/1984

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Class 398/73 - Bus