Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8107779 | Optical crossbar switch An optical crossbar switch for optically coupling optic fibers comprising: at least one first fiber and a plurality of second fibers; a moveable fiber-end carriage coupled to an end of the at least one first fiber and having at least one latching hook and being cons... | 01/31/2012 |
| 8103137 | Optical network for cluster computing Leaf switches and spine switches in a Clos network are interconnected by optical fibers. The network enables large numbers of servers or other apparatus to communicate with each other with minimal delay and minimal power consumption. ... | 01/24/2012 |
| 7738748 | Modular all-optical cross-connect An all-optical, optical cross-connect includes first and second pluralities of multiport optical devices. Each of the first plurality of multiport optical devices have at least one input port for receiving a WDM optical signal and a plurality of output ports for sel... | 06/15/2010 |
| 7734127 | Optical switch module The present invention provides an all optical cross connect switch utilizing two-axis MEMS mirrors for cross connecting optical fibers in a first set of optical fibers to optical fibers in a second set of optical fibers. The optical fibers in the first and second se... | 06/08/2010 |
| 7702193 | Optical crossbar switch An optical crossbar switch for optically coupling optic fibers comprising: at least one first fiber (21) and a plurality of second fibers (22); a moveable fiber-end carriage (41) coupled to an end of the at least one first fiber and constrained ... | 04/20/2010 |
| 7653272 | Highly parallel optical communication system with intracard and intercard communications An optical communications system including a method and apparatus with an electro-optical chip which includes optical interface elements in optical interface array configuration on a first side of the electro-optical chip, attached to or integrated with an optical c... | 01/26/2010 |
| 7574078 | Reconfigurable optical switch An optical switch is provided which includes a plurality of input/output ports for receiving one or more wavelength component(s) of an optical signal. The optical switch also includes an optical arrangement that directs the wavelength component to any given one of t... | 08/11/2009 |
| 7546005 | Optical switch and path switching method An optical switch not having waveguide crossings, as in a matrix switch, enabling input/output path switching of N×N, and not increasing the optical loss or the size when the number of channels increases. The optical switch includes plural input ports 10 and... | 06/09/2009 |
| 7529442 | Polarization-independent electro-optical (EO) switching In one embodiment, an apparatus includes a passive element including one or more first waveguides and one or more second waveguides. The apparatus also includes an active element integrated into the passive element. The active element includes one or more third wave... | 05/05/2009 |
| 7469080 | Modular all-optical cross-connect An all-optical, optical cross-connect includes first and second pluralities of multiport optical devices. Each of the first plurality of multiport optical devices have at least one input port for receiving a WDM optical signal and a plurality of output ports for sel... | 12/23/2008 |
| 7463797 | Wavelength multiplexed light source and wavelength multiplexed light source system A wavelength multiplexed light source using multimode interference is provided. The light source includes an input unit for inputting a plurality of incident lights, input waveguides for individually guiding the incident lights, a multimode waveguide having an input... | 12/09/2008 |
| 7457494 | Dispersion compensator, optical transmission system and optical transmission method A variable dispersion slope compensator with a high-accuracy and a low-cost structure for compensating the dispersion slope compensation error accompanying variations in the zero-dispersion wavelength in transmission fibers in long-distance, high-speed WDM (waveleng... | 11/25/2008 |
| 7447398 | Optical crossconnect apparatus In working path setting, a backup path is previously prepared assuming a link failure, and a demultiplexer of a bypass link is connected to a wavelength conversion repeater through an optical switch. Upon occurrence of a link failure, the wavelength conversion repea... | 11/04/2008 |
| 7447397 | Optical switch matrix An optical switch matrix is described herein. In one embodiment, an exemplary optical switch matrix includes, but is not limited to, multiple input waveguides, multiple output waveguides, for each of the input waveguides and each of the output waveguides, a switchin... | 11/04/2008 |
| 7437032 | Optical switch and method of controlling optical switch An optical switch of the present invention includes at least one input optical fiber, output optical fibers, at least one movable mirror for directing a light beam from the input optical fiber selectively to one of the output optical fibers, and at least one shutter... | 10/14/2008 |
| 7430347 | Methods, systems, and apparatuses for optically generating time delays in signals Methods, systems, and apparatuses for producing time delays in optical signals are provided. The methods, systems, and apparatuses allow the time it takes for an individual light beam to travel an individual light path to be varied. In one example, the apparatuses h... | 09/30/2008 |
| 7430346 | Non-blocking cyclic AWG-based node architectures An optical switching architecture utilizing a multiple stage configuration of wavelength division multiplexed (WDM) component wavelength converters and cyclic arrayed waveguide grating (AWG) router. ... | 09/30/2008 |
| 7428362 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 09/23/2008 |
| 7428353 | MEMS device control with filtered voltage signal shaping A MEMS system is disclosed. The system includes a MEMS device having including a gimbal-less device mount supported by two or more bi-axial linkages. Each bi-axial linkage is mechanically coupled between the device mount and an actuator. Each bi-axial linkage is dis... | 09/23/2008 |
| 7426347 | Shared optical performance monitoring An apparatus for shared optical performance monitoring (OPM) is provided. A wavelength sensitive device receives light at an input port and routes it wavelength selectively to a set of output ports. To perform optical performance monitoring on the output ports, a mo... | 09/16/2008 |
| 7424181 | Hitless switch for high-density integrated optics An optical device includes a first and a second splitting device. Each of the first and second splitting devices have respective first and second input ports, respective first and second output ports, and a respective transfer matrix. A first optical waveguide is op... | 09/09/2008 |
| 7421203 | Method for transmitting packet in wireless access network based on wavelength identification code scheme A method for transmitting a packet in a wireless access network based on a wavelength identification code scheme. The method comprises the steps of connecting n number of RNCs (Radio Network Controllers) to one sub-ring where the “n” is a positive integer, and a... | 09/02/2008 |
| 7421168 | Integrated optical channelizer A signal channelizer (10) includes an input waveguide (14) carrying an inputted signal (20) having a plurality of wavelengths. The input waveguide (14) has an input port (22) for receiving the inputted signal (20). A plurali... | 09/02/2008 |
| 7408639 | Tunable optical routing systems An optical spectral detection device utilizing free space optical beam propagation is provided. The device includes at least one optical fiber input, at least one opto-electronic detection device, an optical element having an actuator with at least one tilt axis, an... | 08/05/2008 |
| 7403690 | Photonic crystal surface states A photonic crystal may be configured to support a surface state for logic. ... | 07/22/2008 |
| 7403712 | Matrix time division multiplex (MTDM) interrogation Embodiments of present system encompass: a plurality of laser sources that produce a plurality of respectively different optical wavelengths; a matrix switch having a plurality of inputs operatively coupled to the plurality of laser sources, each of the plurality of... | 07/22/2008 |
| 7397980 | Dual-source optical wavelength processor An optical signal manipulation system including: a series of ports for carrying a series of optical signals to be manipulated; a spatial separating means for spatially separating at least a first and a second group of light from the series of optical signals; wavele... | 07/08/2008 |
| 7389016 | Beam steering optical switch An optical switch comprises an input array of optical elements spaced from an output array of optical elements, means to direct radiation beams and a further array of optical elements optically located between the inputs and outputs, wherein the pitch of the optical... | 06/17/2008 |
| 7386200 | Photonic circuit board A photonic circuit board comprises a connection setting circuit, a group of electric wires for connecting the connection setting circuit and a plurality of devices, an optical I/O (input/output) device connected to the connection setting circuit and a two dimensiona... | 06/10/2008 |
| 7386202 | Fast optical switch A last optical switch is needed to realize an economical and scaleable optical-core network. In the disclosed optical switch, switching is effected by rapid wavelength conversion. Either channel switching, Time Division Multiplex (TDM) switching or both may be provi... | 06/10/2008 |
| 7379636 | Optical switch An optical switch having a plurality of switch cells. The optical switch has n inputs (n is a natural number) and m outputs (m is a natural number). The optical switch has a unit size defined as the distance between any two adjacent ones of the switch cells. The opt... | 05/27/2008 |
| 7376296 | Optical multiplexer The invention provides an optical multiplexing device comprising: a plurality of optical sources with integrated collimators (31-37) whose output beams are combined by mirrors (41-47) or other beam deflecting elements, which combine the b... | 05/20/2008 |
| 7372616 | Complex microdevices and apparatus and methods for fabricating such devices Various embodiments of the invention are directed to various microdevices including sensors, actuators, valves, scanning mirrors, accelerometers, switches, and the like. In some embodiments the devices are formed via electrochemical fabrication (EFAB™). ... | 05/13/2008 |
| 7373049 | Optical deflection array An optical deflection matrix including at least two optical deflection modules each for providing, from an incoming beam having a given direction of propagation, an output beam having a direction of propagation taken in a set of potential directions. The modules eac... | 05/13/2008 |
| 7373035 | Heat transfer structures A switching element includes a bubble chamber, a heater and a heat conductor. The bubble chamber holds fluid. The bubble chamber includes a trench within a planar light circuit and includes a trench within an integrated circuit attached to the planar light circuit. ... | 05/13/2008 |
| 7373037 | Compact wavelength-selective optical crossconnect A system and method of optically routing wavelength channels from within a plurality of optical inputs to any of a plurality of optical outputs. An optical wavelength-selective cross connect (WSXC) switch is described with a first stage of wavelength division multip... | 05/13/2008 |
| 7373038 | Optical switch having a reflective component A reflective optical switch for use in optical systems, such as fiber optic communications networks, is disclosed. The optical switch includes not only signal transmission characteristics, but also signal reflection capability. The optical switch includes a semicond... | 05/13/2008 |
| 7368700 | Optical switch apparatus and optical switching system In an optical switch apparatus which continuously carries out the route switching on frame signal light inputted from various routes while eliminating differences in output power value, a first delaying unit, which is interposed between a first branching unit and an... | 05/06/2008 |
| 7369720 | Optical device An optical device 1 has a photodetecting element 6, an optical waveguide layer 4 containing core portions 4a to 4c extending in directions crossing a layer thickness direction and a clad portion 4h cover... | 05/06/2008 |
| 7369773 | Methods and systems for polarization control and polarization mode dispersion compensation for wideband optical signals An optical processing method includes: receiving an optical signal from an optical system, wherein the optical signal is distorted by frequency-dependent polarization effects in the optical system; spatially dispersing frequency components of the distorted optical s... | 05/06/2008 |
