Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7676159 | All-optical header processing and packet switching A process for all-optically switching an incoming optical signal having at least a data packet is provided. The data packet including at least an address bit in its header, and the process includes receiving the data packet; processing the header optically; storing ... | 03/09/2010 |
| 7643756 | Optical network for transferring data between devices in a vehicle Transceivers, networks, and methods for providing data communication to electrical devices in a vehicle, and a vehicle comprising the transceiver and network. A transceiver of the network can include a receive optical subassembly including an opto-electronic transdu... | 01/05/2010 |
| 7580641 | Repeater and optical communication system Disclosed is a repeater including: a recognizing unit to recognize a destination address of an optical packet from the optical packet which includes the destination address assigned in unit of bit and a bit indicating whether or not a plurality of destination addres... | 08/25/2009 |
| 7526208 | Changing transceiver module device addresses using a single host interface A method for changing the host communication interface address for a number of individual optical transceivers sharing a single host communication interface. An optical transceiver host computing system is communicatively coupled to the transceivers using the single... | 04/28/2009 |
| 7433603 | Using active and passive optical components for an optical network In one embodiment, the present invention includes a network hub having an active optical encoder where the network hub is to generate a plurality of addressed optical data signals, each having a common carrier wavelength and a different address corresponding to a ne... | 10/07/2008 |
| 7424222 | Optical packet exchanger An optical packet exchanger is provided which prevents a transmittable capacity of an information signal from decreasing, and which facilitates the extracting an address signal even if a modulation speed for the information signal becomes high. An optical modulation... | 09/09/2008 |
| 7412116 | Optical device for simultaneously generating and processing optical codes The invention relates to an optical device, apt to generate and process optical codes at least one wavelength, comprising P inputs s, with 1≦s≦P, and P≧1, and N outputs k, with 1≦k≦N and N≧1, characterized in that it is apt to simultaneously generate and... | 08/12/2008 |
| 7349629 | Methods and systems for creating a digital interconnect fabric An optical network provides a digital interconnect fabric allowing nodes to seamlessly communicate with each other. Each node is connected to a bi-directional optical bus through passive optical interface devices. The optical interface devices route signals from eac... | 03/25/2008 |
| 7292784 | High speed optical routing apparatus and method A high speed optical routing apparatus and method, in which data traffic, such as an IP packet, an Ethernet frame, etc., is switched in an optical frame unit at a high speed. The apparatus is provided with a plurality of input and output ports, and with one add port... | 11/06/2007 |
| 7286770 | Fiber optic transmission lines on an SOC Disclosed is an integrated circuit comprising a plurality of cores attached to at least one transmitter and receiver, an optical transmission network embedded within the wire levels of the integrated circuit, and wherein the transmitter and receivers send and receiv... | 10/23/2007 |
| 7272137 | Data stream filtering apparatus and method A method and apparatus for filtering data packets in a shared-medium or point-to-multipoint communications network. A filter unit is sent a data packet carrying a filter tag value in a packet addressed to the filter unit. The value is stored in the filter unit and s... | 09/18/2007 |
| 7251397 | Encoder/decoder for optical CDMA An encoder according to the present invention is an encoder for encoding an optical wavelength-multiplexed signal compliant with optical CDMA into a code having a code pattern, including: L optical fibers 36 and 42 (where L is an integer equal to or gr... | 07/31/2007 |
| 7224901 | All-optical packet routing gates and demultiplexing systems An all-optical packet gating and routing system, comprising: first optical divider having first input and a plurality of outputs for receiving optical packets at the first input and directing the packets to each of the plurality of outputs, the optical packet... | 05/29/2007 |
| 7212492 | Technique for providing a control and management protocol for an ethernet layer in an ethernet network A technique for providing a control and management protocol for an Ethernet network in an Ethernet layer is disclosed. In one embodiment, the technique is realized by transporting a plurality of inter-nodal messages via Ethernet packets based on a type parameter; id... | 05/01/2007 |
| 7200337 | Optoelectronic transceiver having dual access to onboard diagnostics An optoelectronic transceiver includes first and second controller ICs. Each controller IC includes logic, a memory, an interface, and at least one input port. Each memory is configured to store digital diagnostic data and has a unique serial device address to allow... | 04/03/2007 |
| 7149430 | Optoelectronic transceiver having dual access to onboard diagnostics The optoelectronic transceiver includes first and second controller ICs. Each controller IC includes logic, a memory, an interface, and at least one input port. Each memory is configured to store digital diagnostic data and has a unique serial device address to allo... | 12/12/2006 |
| 7130539 | All optical decoding systems for optical encoded data symbols The present invention provides an optical system for decoding, switching, demultiplexing, and routing of optical encoded data symbols, including: a plurality of optical paths having first and second terminals; a splitting mechanism for directing the encoded data sym... | 10/31/2006 |
| 7093985 | Wall mount fiber optic connector and associated method for forming the same A wall mount fiber optic connector includes a connector body portion to be mounted on a wall of an electronic system, and the connector body portion has ferrule-receiving passageways therein. Opto-electronic (O/E) converters are coupled to the ferrule-receiving pass... | 08/22/2006 |
| 7079536 | Method to perform central control, a line terminator and an element controller realizing such a method and a tree-like network including such a line terminator and an element controller The present invention concerns a method to perform central control of in-line element (Ei) in a tree-like network by a line terminator (LT). A plurality of network terminators (NT1, NT2, . . . , NTi, . . . , NTn) are coupled via one or more of such in-... | 07/18/2006 |
| 7079775 | Integrated memory mapped controller circuit for fiber optics transceiver A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals... | 07/18/2006 |
| 7065298 | Code-based optical networks, methods, and apparatus Optical communication systems include a central station that encodes data transmitted to multiplexing (mux) stations or user stations. The central station also decodes data received from the mux stations or user stations. Encoding and decoding are performed using co... | 06/20/2006 |
| 7055068 | Method for validating operation of a fibre link A method for validating operation of a fiber link when the fiber link is initialized includes the steps of entering a trial link up state upon receiving a command to initialize the fiber link so that normal commands to other devices within the fiber channel loop are... | 05/30/2006 |
| 7035549 | Interconnecting circuit boards using free space optics In an electronic device, plural circuit boards are plugged into respective connectors, or sockets, in a common backplane circuit board. The backplane maintains the flat circuit boards in fixed relation to one another. Each circuit board is provided with a respective... | 04/25/2006 |
| 7027402 | Digital signal route determination method In a method of routing digital signals based on criteria defined by the user all messages receive a prioritization based on the criteria defined by the individual user. Based on this guidance, each digital message is Tagged so that Overlay software can determine the... | 04/11/2006 |
| 6999686 | Wavelength management in an optical network A system for managing signals in an optical network is provided. When a signal is originated by a source node for transmission to a destination node, the source node generates a message. Upon receiving this message, the destination node responds by sending an acknow... | 02/14/2006 |
| 6983109 | Metropolitan networks based on fiber and free space access distribution method A method for facilitating wavelength-specific and packet-switched routing comprises the steps of demultiplexing wavelengths propagating on a primary metropolitan fiber ring, determining a destination address for the wavelength, accessing a look-up table, determining... | 01/03/2006 |
| 6954593 | Burst optical communication apparatus First and second carrier modulators each modulate a carrier having a different frequency from each other with a baseband input signal. First and second variable wavelength optical modulators each convert the modulated signal into an optical signal having a first or ... | 10/11/2005 |
| 6952533 | Internet protocol over WDM network, and packet communication system and method in the IPOW network There is disclosed an internet protocol over WDM (IPOW) network structure which can directly route/transmit packets via a wavelength division multiplexing (WDM) optical communication network, and a packet transmission system in the network structure and method using... | 10/04/2005 |
| 6946640 | Control circuit with cascaded sensor boards A control circuit is used in an apparatus such as a printer in order to detect status and conditions of the apparatus. The control circuit includes a main control board and a plurality of sensor boards. The sensor boards are connected in cascade to define a signal p... | 09/20/2005 |
| 6941077 | Memory mapped monitoring circuitry for optoelectronic device Circuitry for monitoring operation of an optoelectronic device having a laser transmitter and a photodiode receiver includes analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, conver... | 09/06/2005 |
| 6917763 | Technique for verifying fiber connectivity in a photonic network A technique for verifying fiber connectivity via an optical supervisory channel in a photonic network is disclosed. In one embodiment, the technique is realized by sending a first message from the first node to the second node, wherein the first message includes an ... | 07/12/2005 |
| 6915429 | System and method for fiber channel remote activation and enhanced security A system and method for remotely waking up a Fibre Channel attached device. A Fibre Channel attached device is set in a quasi-open mode wherein the device summarily rejects most requests and allocates a minimal set of resources to operate the adapter. One request th... | 07/05/2005 |
| 6782200 | Packet-based optical communications networks In a WDM network, a plurality of the channels are grouped together to form a packet. The format of one of the channels within the packet includes a packet header for providing routing or forwarding information for data on all of the channels of the group. The packet... | 08/24/2004 |
| 6525851 | High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion An optical signaling header technique applicable to optical networks wherein packet routing information is embedded in the same channel or wavelength as the data payload so that both the single-sideband modulated header and data payload propagate through ... | 02/25/2003 |
| 6525850 | High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion An optical signaling header technique applicable to optical networks wherein packet routing information is embedded in the same channel or wavelength as the data payload so that both the header and data payload propagate through network elements with the ... | 02/25/2003 |
| 6522435 | High-throughput, low-latency next generation internet networks using optical label switching and high-speed optical header generation, detection and reinsertion An optical signaling header technique applicable to optical networks wherein packet routing information is embedded in the same channel or wavelength as the data payload so that both the single-sideband modulated header and data payload propagate through ... | 02/18/2003 |
| 6335812 | Communication terminal apparatus and a method A communication terminal apparatus is used in a communication system including at least one first terminal having an optical communication section to optically communicate with one other first terminal and at least one second terminal having a network com... | 01/01/2002 |
| 6333804 | Optical module for receiving optical signal from optical fiber This optical module comprises a photodiode 1, a current mirror circuit 2 having two parallel lines, one of the lines being connected to the photodiode 1, and a transimpedance amplifier 3 connected to the photodiode 1. Since the current mirror circuit 2 is... | 12/25/2001 |
| 6151149 | Method and apparatus for pulse pattern modulation A method and apparatus for encoding data into a pulse pattern begins by encoding header data based on a first pulse encoding convention to produce a header pulse pattern. The resulting header pulse pattern occupies multiple time chips and indicates that s... | 11/21/2000 |
| 6057949 | Bi-directional infrared communications system An infrared (IR) transmitter modulator/receiver controller (TM/RC) encodes downlink serial digital data and precise time synchronization strobes from a host system to provide a downlink modulated serial digital electrical waveform. At least one IR host sy... | 05/02/2000 |
