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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8184985 | Control circuit for optical transmitter/receiver A control circuit for an optical transmitter/receiver that transmits/receives an optical signal, comprises: a memory having a digital value storage area and an area that stores limit values; a register; an analog/digital conversion circuit that receives analog signa... | 05/22/2012 |
| 8160451 | Optical network unit transceiver module with arrayed I/O video contacts Pluggable ONU transceiver modules are disclosed that include an optical connector configured to connect to an optical network. The pluggable ONU transceiver modules further includes a transmit line including a laser driver and a laser. The pluggable ONU transceiver ... | 04/17/2012 |
| 8041227 | Apparatus and method for near-field communication A communication device is disclosed having optical and near-field communication capability. The device includes an optical transceiver circuit fabricated on an integrated circuit die and configured to transmit and receive far field signals. A near field transceiver ... | 10/18/2011 |
| 8005367 | Bi-directional optical module with improved optical crosstalk The bi-directional optical module, which installs the receiver and the transmitter within one package, is disclosed with an improved optical crosstalk. The optical module provides a lens, a WDM filter and a photodiode (PD) on an axis of the single mode fiber coupled... | 08/23/2011 |
| 7995928 | Collimated ball lenses for optical triplexers Optical triplexers are disclosed. The optical triplexers include an optical fiber, a first ball lens optically coupling a first optical signal between a first opto-electronic device and a first wavelength selective filter, and a second ball lens optically coupling a... | 08/09/2011 |
| 7986884 | Optical network test access point device An optical network test access point (“TAP”) device. In one example embodiment, an optical network TAP device includes a printed circuit board and a plurality of optical receiver modules. The printed circuit board includes a microprocessor, a multiplexer connect... | 07/26/2011 |
| 7974538 | Transaction for transceiver firmware download An environment that facilitates the purchasing and updating of specific operational features in an optical transceiver (or optical transmitter or optical receiver). The environment includes a host computing system (hereinafter referred to as the “host”), a netwo... | 07/05/2011 |
| 7974539 | Bi-directional optical module Provided is a bi-directional optical module including: a transmission optical element including an SOA (semiconductor optical amplifier) aligned on an optical axis of an LD (laser diode) formed on a substrate; and a reception optical element comprising a PD (photodi... | 07/05/2011 |
| 7941052 | Bi-directional parallel optical link An optical communications device has light transmitters of a first wavelength that are coupled to a number of first waveguides of an optical data link, respectively. A second set of light transmitters of a second, different wavelength are coupled to another set of w... | 05/10/2011 |
| 7917037 | Internal EMI shield for an optoelectronic module A shield device for preventing the emission of electromagnetic interference (“EMI”) from an optoelectronic device, such as an optical transceiver, is disclosed. In particular, an EMI shield is disclosed for placement within an optical transceiver module in order... | 03/29/2011 |
| 7889993 | Optical transceiver module having a front facet reflector and methods for making and using a front facet reflector A reflector for use in an optical transceiver module and methods for making and using the reflector are provided. The methods for making the reflector reduce the amount of processing and handling of the wafer that are required, thereby reducing manufacturing costs a... | 02/15/2011 |
| 7877016 | Photonic integrated circuit (PIC) transceivers for an optical line terminal (OLT) and an optical network unit (ONU) in passive optical networks (PONs) A photonic integrated circuit (PIC) for a PON transceiver comprises a single monolithic chip having a modulated transmitter laser diode of a first wavelength, λ1, for generating a first communication signal outgoing from the chip via an input/output port... | 01/25/2011 |
| 7831152 | Optical transceiver An optical transceiver for detecting an incoming light beam and for transmitting an outgoing light beam along a common optical axis is provided. Such an optical transceiver provides a compact optical transceiver that is suitable for a wide variety of applications. | 11/09/2010 |
| 7822346 | Module housing for connecting opto-electronic sub-assemblies This disclosure generally concerns modules. In one example, a module includes a housing, a printed circuit board, and an optical subassembly. The housing has a first part and a second part, with the second part holding the printed circuit board and optical subassemb... | 10/26/2010 |
| 7796892 | Optical transceiver module having wireless communications capabilities An optical transceiver module includes a wireless communications device that provides the transceiver module with the ability to receive wireless signals in and/or transmit wireless signals from the optical transceiver module. The wireless communications device may ... | 09/14/2010 |
| 7769297 | Driving multiple transceiver modules with a single SERDES transceiver chip The invention relates to a transceiver optical system in which a single serializer/deserializer (SERDES) chip is used to drive a plurality of transceiver modules. ... | 08/03/2010 |
| 7664401 | Apparatus, system and methods for modifying operating characteristics of optoelectronic devices Systems, devices and methods are disclosed for adjusting the operating characteristic of an optical signal transmitted by an optoelectronic device based on the operational data rate, as is indicated by a ‘rate select’ signal. The rate select can be generated aut... | 02/16/2010 |
| 7529489 | Reconfigurable multiple port transponder A transponder unit which relays signals between a plurality of channels of an optical transport network and a plurality of clients. The interconnections within the transponder unit are reconfigurable for selective connections. A connection between a first client and... | 05/05/2009 |
| 7505689 | Electronic signal blanking in optical transceivers A transceiver system allows for simultaneous operation of transmit and receive modes, even in shared path configurations, by temporarily making the receiver insensitive to transmitter energy and by modifying standard readout technology to rapidly dissipate any trans... | 03/17/2009 |
| 7505688 | Optical transceiver An optical transceiver for detecting an incoming light beam and for transmitting an outgoing light beam along a common optical axis is provided. Such an optical transceiver provides a compact optical transceiver that is suitable for a wide variety of applications. | 03/17/2009 |
| 7463830 | Modular optical transmitter for WWDM transceivers A hermetically sealed optical transmitter module for use in an optical transceiver converting and coupling an information-containing electrical signal with an optical fiber. A plurality of semiconductor lasers are provided on a common support in the housing for conv... | 12/09/2008 |
| 7447439 | Optical duplexer and optical triplexer An optical triplexer design is described in which external optical signals at a first wavelength range propagate through a laser source. The laser source provides optical signals having a second wavelength range. The triplexer features a photodetector for providing ... | 11/04/2008 |
| 7447440 | Multiple channel optical transceiver modules Techniques for multiple channel optical transceivers for use in network devices are provided. In general, a row of optical emitters are disposed adjacent to a row of optical detectors in order to provide increased bandwidth and reduced optical crosstalk. Each row ca... | 11/04/2008 |
| 7444081 | Optical transport system A method and system is disclosed to optically transport data at a data rate of about 5 Gbps without chromatic dispersion compensation. After receiving a first data stream at a data rate of about 2.5 Gbps and a second data stream at a data rate of about 2.5 Gbps, the... | 10/28/2008 |
| 7440702 | Method for transmitting digital image signal, digital image transmitting device, digital image sending device and digital image receiver A multiplexer of a transmission section generates a clock signal by multiplying a reference clock signal of a digital image signal by a predetermined number ‘K’. A parallel digital image signal is converted into a serial digital signal on the basis of the clock ... | 10/21/2008 |
| 7437079 | Automatic selection of data rate for optoelectronic devices Systems, devices and methods are disclosed for automatically selecting and setting an operational data rate of an optoelectronic device. In particular, an integrated circuit includes a data rate select input for the selection and setting of the operational data rate... | 10/14/2008 |
| 7437078 | Integrated post-amplifier, laser driver, and controller A telecommunications system and constituent integrated circuit that includes a post-amplifier assembly configured for communication with an optical receiver, a laser driver assembly configured for communication with the optical transmitter, and a controller assembly... | 10/14/2008 |
| 7433596 | Bi-directional, full-duplex, one-wire communications link for use in fiber optic transceivers An apparatus is provided that is capable of achieving bidirectional, full-duplex communication with an optical transceiver. In some instances, the communication is achieved over a single electrical connection of the transceiver and via the use of a duplexing circuit... | 10/07/2008 |
| 7430375 | Optical transceiver This invention provides an optical transceiver that can attain a single-wire two-way communication in a simple structure. In an optical integrated chip, a light emitting element and a light receiving element are formed on the same chip, and a light emitting section ... | 09/30/2008 |
| 7426348 | Calibrating an optical transceiver via adaptive testing An optical transceiver connectable to a test apparatus. The optical transceiver includes a least one test apparatus interface configured to receive from the test apparatus an input causing at least a first transceiver operating parameter to have a level substantiall... | 09/16/2008 |
| 7424221 | Optical network terminal with illegal transmission detection circuitry An optical network terminal, which includes an optical transmitter, monitors the status of the optical transmitter, such as the output or the power consumption of the optical transmitter, to determine when the optical transmitter is illegally transmitting. When an i... | 09/09/2008 |
| 7413355 | Light emitting module and single-fiber two-way optical communication module A light emitting module according to the present invention is characterized in that a light emitting device and a light-emission-side lens are held close to each other by a holding part extended from part of a stem in parallel with outgoing light of the light emitti... | 08/19/2008 |
| 7415212 | Data communication system, data transmitter and data receiver A transmitter formed of two or more light-emitting sections such as LEDs, which are physically arranged in a predetermined manner, is disposed in the real world object, and each light-emitting section transmits data by flashing at a flashing pattern representing the... | 08/19/2008 |
| 7403716 | Optical module for bi-directional communication system The optical module includes a main housing, a filter support component, which can affix an optical fiber, supported by a first attachment section, a light-emitting component supported by a second attachment section, a light-receiving component supported by a third a... | 07/22/2008 |
| 7400801 | Bidirectional HDCP module using single optical fiber and waveguide combiner/splitter Embodiments provide single fiber bidirectional HDCP modules. A signal fiber module includes at least one laser and at least one detector and a waveguide combiner/splitter. An optical fiber is used as a cylindrical lens in order to partially collimate in the vertical... | 07/15/2008 |
| 7396166 | Optical transceiver module An optical transceiver module including a housing and a plurality of optical transceiver devices is provided. The housing has a connector portion disposed at an end thereof. The connector portion includes two receptacles formed thereon. The optical transceiver devic... | 07/08/2008 |
| 7394987 | Programmable infrared data processor An Infrared (IR) receiver includes a programmable decoder having a normal mode of operation and a proprietary mode of operation. When the programmable decoder is in the normal mode of operation, the programmable decoder decodes frames of an IR data transmission to p... | 07/01/2008 |
| 7386238 | Method and system for infrared data communications A method and system for conveying contextually relevant information to a wireless client are disclosed. More particularly, a transmitter transmits a diffuse infrared signal to a client having an IrDA compliant communication interface. The transmitter communicates wi... | 06/10/2008 |
| 7367720 | Optical transceiver with optical subassemblies optionally fixed to housing The present invention provides an optical transceiver with an optical subassembly optically coupling with an optical connector via a receptacle member, in which the optical subassembly is positioned to the housing of the transceiver without causing any mechanical st... | 05/06/2008 |
| 7369776 | Bi-directional optical transceiver module A bi-directional optical transceiver module includes an optical transmitter, and an optical receiver, which have a TO-can structure, and generates a first optical signal and detects a second optical signal, respectively. A housing includes a first receiving section ... | 05/06/2008 |
