Patent application number | Description | Published |
20110069165 | Flexible Imaging Fiber Bundle Monitoring System for Combustion Turbines - An imaging system for on-line imaging of a component in a gas turbine engine. The imaging system includes a flexible imaging bundle formed by a plurality of optical elements. An imaging end of the optical elements images a component in a hot gas path of the engine during operation of the engine and a viewing end provides an image of the component at a location displaced from the hot gas path. The optical elements are surrounded by a flexible metal sheath that is permeable to air to provide cooling air the optical elements from an air source surrounding the flexible imaging bundle. | 03-24-2011 |
20120020769 | FLUID DETECTION IN TURBINE ENGINE COMPONENTS - A system for detecting the presence of one or more fluids in a rotating component of a gas turbine engine. A first reflector structure includes a first face that receives light from the light source. The first reflector structure reflects at least a substantial portion of the received light from the light source if a second face thereof is in the presence of a first fluid and does not reflect a substantial portion of the received light from the light source if the second face is in the presence of a second fluid. A reflection receiver structure receives light reflected by the first reflector structure. If the reflection receiver structure receives a first predetermined amount of light reflected by the first reflector structure it can be determined that the second face of the first reflector structure is not in the presence of the second fluid. | 01-26-2012 |
20120200698 | APPARATUS AND METHOD FOR TEMPERATURE MAPPING A TURBINE COMPONENT IN A HIGH TEMPERATURE COMBUSTION ENVIRONMENT - Method and system for calibrating a thermal radiance map of a turbine component in a combustion environment. At least one spot ( | 08-09-2012 |
20130088587 | HOUGH TRANSFORM APPROACH TO GAP MEASUREMENT IN BLADE INSPECTION - Two adjacent objects with a gap between the objects rotate in a hot atmosphere with a temperature greater than 300 F in a gas turbine. Automatic and accurate contactless measurement of the gap is performed by taking images of the gap. An image, preferably an infra-red image is taken from the gap, a processor extracts the two edges from the image of the gap. The processor also determines a line through the pixels of an edge by applying a Hough transform on the pixels. The edges are substantially parallel. A line substantially perpendicular to the lines is also determined. Using the substantially parallel lines and the line substantially perpendicular to the substantially parallel lines the processor determines a width of the gap. | 04-11-2013 |
20130194379 | SYSTEM AND METHOD FOR ONLINE INSPECTION OF TURBINES INCLUDING ASPHERIC LENS - Optical camera systems for nondestructive internal inspection of online, operating power generation turbines, including gas turbine combustor and turbine sections that are at high operating temperatures in the range of over 600° C. (1112° F.) and which include combustion gas contaminants. The inspection system includes one or more aspheric lenses capable of withstanding continuous operating temperatures above 600° C. The aspheric lenses, alone or in combination with spherical lenses, establish a wider field of view, and require fewer lenses in combination than lens mounts incorporating only spherical lenses. A cooling system incorporated in the inspection system facilitates continuous operation and inhibits lens external surface fouling from combustion gasses. | 08-01-2013 |
20130194411 | SYSTEM AND METHOD FOR ONLINE INSPECTION OF TURBINES INCLUDING TEMPERATURE AND VIBRATION COMPENSATING LENS MOUNT - Optical camera systems for nondestructive internal inspection of online, operating power generation turbines, including gas turbine combustor and turbine sections that are at high operating temperatures in the range of over 600° C. (1112° F.). The system includes one or more temperature and vibration-compensating lens systems in the optical tube mount. The lens is circumferentially retained within a lens mount, with a mounting ring in contact with only the lens axial face. A biasing element exerts axially oriented biasing force on the first lens face through the first mounting ring, allowing for mount flexure in response to operational turbine vibration and temperature changes. The lens mount is advantageously combined with aspheric lenses capable of withstanding continuous operating temperatures above 600° C. The aspheric lenses, alone or in combination with spherical lenses, establish a wider field of view, and require fewer lenses in combination than lens mounts incorporating only spherical lenses. | 08-01-2013 |
20130235391 | ONE-DIMENSIONAL COHERENT FIBER ARRAY FOR INSPECTING COMPONENTS IN A GAS TURBINE ENGINE - Inspecting a turbine includes positioning respective ends of a plurality of optical fibers within a high temperature region of the turbine wherein the respective first ends are aligned as a one-dimensional array. Energy emitted from an image area on a component of the turbine, is received at the ends of the optical fiber. The optical fibers convey the received energy to the other ends of the fibers that are located outside of the turbine. Outside the turbine an image of the respective other ends is captured, wherein the other ends are also aligned in a one-dimensional area. Additionally, for imaging a rotating component, a plurality of one-dimensional images of the other ends can be respectively captured at corresponding rotational positions of the component and used to create a two-dimensional image of the rotating component. | 09-12-2013 |
20140061476 | INFRARED NON-DESTRUCTIVE EVALUATION METHOD AND APPARATUS - A method of nondestructive evaluation and related system. The method includes arranging a test piece ( | 03-06-2014 |
20140063227 | SYSTEM AND METHOD FOR ONLINE INSPECTION OF TURBINES USING AN OPTICAL TUBE WITH BROADSPECTRUM MIRRORS - An optical inspection system for nondestructive internal visual inspection and non-contact infra-red (IR) temperature monitoring of an online, operating power generation turbine. The optical inspection system includes an optical tube having a viewing port, at least one reflective mirror or a mirror array having a reflectivity spectral range from 550 nm to 20 μm, and capable of continuous operation at temperatures greater than 932 degrees Fahrenheit (500 degrees Celsius), and a transparent window with high transmission within the same spectral range mounted distal the viewing port. The same optical mirror array may be used to measure selectively surface temperature of metal turbine blades in the near IR range (approximately 1 μm wavelength) and of thermal barrier coated turbine blades in the long IR range (approximately 10 μm wavelength). | 03-06-2014 |
20150015693 | SYSTEM AND METHOD FOR OPTICAL FIBER BASED IMAGE ACQUISITION SUITABLE FOR USE IN TURBINE ENGINES - A system and a method for image acquisition suitable for use in a turbine engine are disclosed. Light received from a field of view in an object plane is projected onto an image plane through an optical modulation device and is transferred through an image conduit to a sensor array. The sensor array generates a set of sampled image signals in a sensing basis based on light received from the image conduit. Finally, the sampled image signals are transformed from the sensing basis to a representation basis and a set of estimated image signals are generated therefrom. The estimated image signals are used for reconstructing an image and/or a motion-video of a region of interest within a turbine engine. | 01-15-2015 |
Patent application number | Description | Published |
20080313676 | METHOD AND DEVICE FOR SHARING PERSONALIZED SERVICES, PARTICULARLY FOR INTERACTIVE TELEVISION - A method for sharing at least one service, in particular in interactive television service, between a source device and target communication terminal, said method comprising the following steps: receiving generic electronic service guide data, said generic data originating from a digital distribution network; receiving data specific to the user profile, said specific data originating from a peer-to-peer network connection; encrypting the generic and specific data and updating the electronic service guide of the source device; selecting a target communication terminal; selecting at least one service to transmit to said terminal; identifying fragments or pieces of fragments of the source device's electronic service guide corresponding to the service to be transmitted to the target communication terminal; transmitting the fragments or pieces of fragments of the source device's electronic service guide to target terminal, said fragments being at least partially personalized; and updating the target terminal's electronic service guide. | 12-18-2008 |
20100082644 | IMPLICIT INFORMATION ON MEDIA FROM USER ACTIONS - The exemplary embodiments relate to a new interactive method and system to implicitly enrich any multimedia content effortlessly by combining multiple pieces of information on media content. The new solution consists of logging implicit user actions (e.g., display, modify, remove, copy, classify, send) on media from their terminals (e.g., PC, mobile phone, PDA). Pertinent information related to media will be then statistically generated and consolidated from these logged media actions and will be used to enrich related media content. A unique identifier number will be associated with each media in order to retrieve its associated information. | 04-01-2010 |
Patent application number | Description | Published |
20100089484 | DEVICE FOR PROTECTING A MALE END OF A THREADED TUBULAR CONNECTION COMPONENT, HAVING OPEN AND CLOSED POSITIONS, AND ASSOCIATED METHODS AND MOUNTING MACHINES - A protective device for a male end of a component of a threaded tubular connection for drilling and working hydrocarbon wells is externally provided with at least one threading and includes a free terminal portion. The device includes i) a protector body produced in the form of a first sleeve and arranged to protect at least a portion of the external threading and the free terminal portion, ii) a sealing element for positioning in contact firstly with the component, at least at a portion located downstream of the external threading of the male end, and secondly with the protector body to provide a first seal downstream of the external threading, and iii) a fixing mechanism displacing the sealing element and/or protector body radially towards the component, defining open and closed positions of the device in which the sealing element and/or the protector body are respectively not in contact and in tight contact with the component. Further, the first seal is obtained in the closed position of the device. | 04-15-2010 |
20110148103 | DEVICE FOR PROTECTING A FEMALE END OF A THREADED TUBULAR CONNECTION COMPONENT, HAVING AN ANTI-UNSCREWING BRAKE - A device configured to protect a female end of a component of a threaded tubular connection for drilling and working a hydrocarbon well, including an internal threading, annular end, and internal surfaces respectively upstream and downstream of the internal threading and respectively having first and second selected orientations. The device includes a body including an external threading to cooperate with the internal threading and first and second flexible annular type sealing elements respectively upstream and downstream of the external threading to provide first and second seals respectively at the internal and end annular surfaces. The first and second sealing elements have selected third and fourth orientations at least one of which differs by at least 10° from the corresponding second or first orientation before screwing the device onto the female end, and are deformable by axial bending to acquire, by surface contact with the internal annular surface and the annular end surface, an energy at least partially opposing any unintentional unscrewing when the female end is screwed onto the body in a final position. | 06-23-2011 |
Patent application number | Description | Published |
20130234218 | METAL OXIDE SEMICONDUCTOR (MOS) DEVICE WITH LOCALLY THICKENED GATE OXIDE - A method of fabricating a semiconductor device including providing a gate structure on a channel portion of a semiconductor substrate, wherein the gate structure includes at least one gate dielectric on the channel portion of the semiconductor substrate and at least one gate conductor on the at least one gate dielectric. An edge portion of the at least one gate dielectric is removed on each side of the gate structure, wherein the removing of the edge portion of the gate dielectric provides an exposed base edge of the at least one gate conductor and an exposed channel surface of the semiconductor substrate underlying the gate structure. The sidewall of the gate structure is oxidized, which also oxidizes at least one of the exposed base edge of the at least one gate conductor and the exposed channel surface of the semiconductor substrate that is underlying the gate structure. | 09-12-2013 |
20130285133 | NON-VOLATILE MEMORY DEVICE FORMED BY DUAL FLOATING GATE DEPOSIT - A method includes forming a shallow trench isolation (STI) region in a substrate; depositing a first material such that the first material overlaps the STI region and a portion of a top surface of the STI region is exposed; etching a recess in the STI region by a first etch, the recess having a bottom and sides; depositing a second material over the first material and on the sides and bottom of the recess in the STI region; and etching the first and second material by a second etch to form a floating gate of the device, wherein the floating gate extends into the recess. | 10-31-2013 |
20130285134 | NON-VOLATILE MEMORY DEVICE FORMED WITH ETCH STOP LAYER IN SHALLOW TRENCH ISOLATION REGION - A method includes forming a shallow trench isolation (STI) region in a substrate, the STI region comprising an etch stop layer; etching the STI region by a first etch to the etch stop layer to form a recess in the STI region; and forming a floating gate, the floating gate comprising a portion that extends into the recess in the STI region, wherein the etch stop layer separates the portion of the floating gate that extends into the recess in the STI region from the substrate. | 10-31-2013 |
20140061760 | NON-VOLATILE MEMORY DEVICE FORMED BY DUAL FLOATING GATE DEPOSIT - A device includes a substrate; a shallow trench isolation (STI) region located in the substrate, the STI region comprising an STI material, and further comprising a recess in the STI material, the recess having a bottom and sides; a floating gate, wherein a portion of the floating gate is located on a side of the recess in the STI region and is separated from the substrate by a portion of the STI material; and a gate dielectric layer located over the floating gate, and a control gate located over the gate dielectric layer, wherein a portion of the control gate is located in the recess. | 03-06-2014 |
20140070331 | METAL OXIDE SEMICONDUCTOR (MOS) DEVICE WITH LOCALLY THICKENED GATE OXIDE - A method of fabricating a semiconductor device including providing a gate structure on a channel portion of a semiconductor substrate, wherein the gate structure includes at least one gate dielectric on the channel portion of the semiconductor substrate and at least one gate conductor on the at least one gate dielectric. An edge portion of the at least one gate dielectric is removed on each side of the gate structure, wherein the removing of the edge portion of the gate dielectric provides an exposed base edge of the at least one gate conductor and an exposed channel surface of the semiconductor substrate underlying the gate structure. The sidewall of the gate structure is oxidized, which also oxidizes at least one of the exposed base edge of the at least one gate conductor and the exposed channel surface of the semiconductor substrate that is underlying the gate structure. | 03-13-2014 |
20150041878 | METHOD FOR FORMING A FLOATING GATE IN A RECESS OF A SHALLOW TRENCH ISOLATION (STI) REGION - A method includes forming a shallow trench isolation (STI) region in a substrate, the STI region comprising an etch stop layer; etching the STI region by a first etch to the etch stop layer to form a recess in the STI region; and forming a floating gate, the floating gate comprising a portion that extends into the recess in the STI region, wherein the etch stop layer separates the portion of the floating gate that extends into the recess in the STI region from the substrate. | 02-12-2015 |
Patent application number | Description | Published |
20080276685 | TRANSPORT POD INTERFACE - The invention pertains to a transport pod interface including a sampling probe intended to be connected to a gas analyzer and an actuator that can couple with an access door on the transport pod in the coupling position, and that can move said door towards the base of the interface in an retracted position in which the volume of gas to be analyzed contained within the transport pod can be accessed by the sampling probe, characterized in that it includes at least one sealing joint configured so as to ensure that at least when the interface is in the retracted position, the space between the actuator and said base is sealed in such a way as to isolate the volume of gas to be analyzed. | 11-13-2008 |
20090196714 | Device for the transport, storage, and transfer of substrates - According to the invention, a transport box ‘ | 08-06-2009 |
20100008748 | Apparatus for loading and unloading semiconductor substrate platelets - The goal of the present invention is to provide an apparatus capable of cooperation with at least one piece of wafer processing equipment, comprising leak proof walls comprising a first opening comprising means for the connection to a first equipment chosen from between a transfer chamber and a processing chamber, a second opening comprising means of connection to a wafer transport case containing a basket, comprising a series of stacked parallel trays suitable for storing a wafer each, the basket being susceptible of being transported inside the apparatus, means of moving the basket from and to the transport case, and means for immobilizing the trays. The apparatus further comprises a third opening comprising means for the connection to a second piece of equipment chosen from between an EFEM module and a transfer chamber, and means for the placement and support of a wafer capable of working together with movement means for the wafer enabling its passage through the second opening and/or the third opening. | 01-14-2010 |
20100282272 | METHOD FOR TREATING A TRANSPORT SUPPORT FOR THE CONVEYANCE AND ATMOSPHERIC STORAGE OF SEMICONDUCTOR SUBSTRATES, AND TREATMENT STATION FOR THE IMP LEMENTATION OF SUCH A METHOD - The aim of the invention is to provide a method for the treatment of a transport support ( | 11-11-2010 |
20110048143 | CONTAMINATION MEASUREMENT STATION AND METHOD FOR A SEMICONDUCTOR SUBSTRATES TRANSPORT POD - The invention concerns a measurement station for the measurement of particle contamination of a transport pod for the conveyance and atmospheric storage of semiconductor substrates, such pod comprising a casing capable of being closed by means of a removable access door, such station comprising:
| 03-03-2011 |
20120090382 | DEVICE AND METHOD FOR ANALYSING GAS AND ASSOCIATED MEASUREMENT STATION - The invention relates to a station for measuring gaseous pollution in a transport enclosure of semiconductor substrates comprising a gas analysis device for determining the concentration of the gas to be analysed, said analysis device including: a diluting unit ( | 04-19-2012 |
20130097802 | Treatment Device For Transport And Storage Boxes - A treatment device for transport and storage boxes according to the invention comprises a plurality of decontamination modules ( | 04-25-2013 |
Patent application number | Description | Published |
20090156042 | Electrical Connecting Device Having Mating State Indication Means - This connecting device has a connector and a counterpart connector suitable to mate therewith, and at least one RFID tag attached to one of said connectors and suitable to communicate with reader, said RFID tag including an antenna. The device further includes a switch adapted to put the RFID tag either in a first communication state or in a second communication state, depending on the full or incomplete mating state of the connectors. | 06-18-2009 |
20100035460 | CONNECTOR ASSEMBLY - The invention proposes a connecting assembly including a frame, a contact receptacle (hereafter ‘receptacle’) of an electrical connector and a contact header (hereafter ‘header’) of a counterpart electrical connector to be plugged into the electrical connector according to a plugging direction, wherein it is arranged such that the header and the receptacle can be both independently pushed into the plugging direction with respect to the frame, and wherein it further includes: first stopping means arranged for stopping the header on the receptacle if the header is pushed according to the plugging direction with a force that is lower than to a first force limit F | 02-11-2010 |
20130056256 | Cable Junction - The cable junction includes at least two electrical cables extending side by side, each including its own independent shield and a front end section where its independent shield is stripped off, a common shield surrounding the front end sections and the independent shields of the cables, and a clamping device for clamping the common shield on the independent shields. The clamping device includes internal clamping means for clamping the common shield on flanks of the independent shield sheaths. | 03-07-2013 |
20140065857 | ELECTRICAL CONNECTOR ASSEMBLY WITH A CPA ELEMENT - An electrical connector assembly including a first connector having a first casing and a first contact and a second contact, and a second connector having a second casing and a first and a second contact. The first and second connectors are configured to transition between an unassembled condition and an assembled condition to connect the first contacts together and the second contacts. The second connector supports a connector position assurance (CPA) element. In the unassembled condition, the CPA element abuts against a surface borne by one of connectors, thereby preventing movement of the CPA element relative to the second connector between a safety and an active position. In the assembled condition, the CPA element does not abut against the surface and is movable relative to the second connector between the safety and active positions, so as to connect the contact carried by the CPA element with the corresponding contact. | 03-06-2014 |
20140295714 | POWER PLUG - A power plug comprising a housing with a plurality of receptacles and extending along a receptacle axis parallel to the mating direction. Each receptacle has a central part and a front part with an opening to receive a male terminal of the complementary electrical socket. The power plug comprises a plurality of female terminals passing through the housing in parallel to the mating direction. Each female terminal includes a central part located in the central part of the receptacle, and a front part projecting from the central part in the mating direction and receiving a male terminal. The receptacle includes a plurality of ribs arranged radially on an inner side of the receptacle and protruding transversely inward. The ribs of the receptacle cooperate with the front part of the corresponding female terminal to center the front part of the corresponding female terminal with respect to the receptacle axis. | 10-02-2014 |
20150311618 | Connector for Motor Vehicles and Process for Mounting of this Connector - The invention relates to a connector for motor vehicles. By means of the invention the device for assuring the position of the contacts is prevented from being accidentally displaced from its shipping position to its use position. To this end, the device for assuring the position of the contacts is locked in the shipping position against a stop. On insertion of one or more contacts into its respective cavity, a direct interaction between this contact or these contacts and the device for assuring the position of the contacts causes escape from the stop. The device for assuring the position of the contacts can then be displaced from its shipping position to its use position. | 10-29-2015 |
Patent application number | Description | Published |
20120307665 | Handling of Measurements for Selecting a Cell in a Network - The present invention generally relates to devices and methods, in a cellular network, for measuring a power level for each one of a plurality of BCCH carriers emitted by neighbouring cells around a Mobile Set, in: dividing the plurality of carriers into at least a first group and a second group; handling measurements of the power level of each carrier included in the first group, so as the time lapsed between two consecutive measurements for each carrier is lesser than a first threshold; handling measurements of the power level of each carrier included in the second group, so as the time lapsed between two consecutive measurements for each carrier is lesser than a second threshold different from the first threshold. | 12-06-2012 |
20120307671 | Reselection of Cells in a TDMA Cellular Network - The present invention generally relates to the reselection, handled by a Mobile Set, of a cell in a cellular network using Time Division Multiple Access as channel access method. The Mobile Set in an idle mode, while receiving signals emitted by a serving cell on which the Mobile Set is camped and by a plurality of surrounding cells, carries out the following steps: comparing, to a first threshold, a first Signal-to-Noise Ratio for signals emitted from said serving cell; if the first Signal-to-Noise Ratio is lower than the first threshold, identifying one of the surrounding cells emitting signals having a second Signal-to-Noise Ratio higher than a second threshold, said second threshold being higher than the first threshold; selecting said identified surrounding cell as new serving cell. | 12-06-2012 |
Patent application number | Description | Published |
20110035082 | FLIGHT MANAGEMENT SYSTEM, PROCESS, AND PROGRAM PRODUCT ENABLING DYNAMIC SWITCHING BETWEEN NON-PRECISION APPROACH MODES - Embodiments of a process and a program product are provided suitable for implantation by a flight management system (FMS), which is deployed onboard an aircraft and including a display device and a user interface. The FMS operable in a plurality of non-precision approach modes. In one embodiment, the process includes the steps of: (i) receiving data via the user interface designating an approach in a flight plan; (ii) enabling the pilot to utilize the user interface to select a non-precision approach mode from the plurality of non-precision approach modes if the designated approach is a non-precision approach; and (iii) placing the FMS in the selected non-precision approach mode during the designated approach. | 02-10-2011 |
20110270470 | AIRCRAFT SYSTEMS AND METHODS WITH ACTIVE DECELERATION CONTROL - A system is provided for controlling the speed of an aircraft during a deceleration segment between a first state associated with a first speed and a first time and a second state associated with a second speed and a second time. The system includes a navigation system configured to determine the first state; a guidance system configured to determine the second state; and an active deceleration system coupled to the navigation system and the guidance system and configured to construct the deceleration segment between the first state and the second state with at least one intermediate speed between the first speed and the second speed. | 11-03-2011 |
20120059535 | SYSTEMS AND METHODS FOR RTA CONTROL OF MULTI-SEGMENT FLIGHT PLANS WITH SMOOTH TRANSITIONS - Methods, systems and device are provided for smoothing a required time of arrival (RTA) speed transition for an aircraft in a multi-segmented speed profile including at least one preceding region with a first predetermined speed pad and at a speed constrained region with a second predetermined speed pad. Exemplary methods include, but are not limited to determining whether a speed constrained region is engaged by a preceding region based at least in part on a speed of an aircraft. If the speed constrained region is engaged, the instructions determine a revised second speed pad for the speed constrained region. If the speed constrained region is not engaged then the instructions assign a default speed pad as the second speed pad for the speed constrained region. The instructions also compile a new speed profile that is defined by one of the revised second speed pad and the default speed pad for the speed constrained region and transmit commands that accelerate the aircraft to a new speed based on the new speed profile. | 03-08-2012 |
20140067245 | AIRCRAFT CONTROL SYSTEM AND METHOD FOR REACHING A WAYPOINT AT A REQUIRED TIME OF ARRIVAL - A method and apparatus includes long term and short term strategies for improving 4D trajectory reliability and required time of arrival reliability. The long term strategy changes speeds along the trajectory to remove the time error in predictions. The short term strategy compensates for wind and position error, for example, by temporarily changing an aircraft guidance speed by applying a guidance margin that would either delay or prevent re-computation of the speed targets along the flight path. The predictions would use the original speed target without the guidance margin application. The guidance speed target will stay applied until the predicted time error crosses a threshold. | 03-06-2014 |
20140365037 | FAULT TOLERANT LATERAL WAYPOINT SEQUENCING SYSTEM AND METHOD - Fault-tolerant lateral waypoint sequencing is provided for a system that includes at least a first flight management computer and a second flight management computer. A processing operation associated with lateral leg sequencing of an aircraft flight plan is implemented in the flight management computers. A determination is made in the first flight management computer as to whether the first flight management computer has received, within a predetermined period of time from when the first flight management computer implemented the processing operation, a notification from the second flight management computer that the second flight has also implemented the processing operation. An action is initiated in the first flight management computer when the first flight management computer has not received the notification from the second flight management computer within the predetermined period of time. | 12-11-2014 |
Patent application number | Description | Published |
20090052906 | Optical Transmission Between a First Unit and a Plurality of Second Units Interconnected by Means of a Passive Optical Access Network - System and method of transmitting downlink and uplink data traffic between a central office terminal ( | 02-26-2009 |
20090214217 | Optical Device and a Method for Converting WDM Signals Into an OTDM Signal and Vice Versa - The invention relates to a device and a method for converting WDM signals into an OTDM signal. The device comprises shifting means ( | 08-27-2009 |
20090269059 | LONG-REACH PASSIVE OPTICAL NETWORK USING REMOTE MODULATION OF AN AMPLIFICATION OPTICAL SIGNAL - A passive optical network is provided, which includes an optical central office connected to a line termination device by a branch of the network including a passive amplification medium. The central office is adapted to send/receive a first data optical signal and has a first amplifier for sending a second amplification optical signal. The second signal exciting the amplification medium to amplify the optical power of an optical signal. The line termination device is adapted to receive the first optical signal, modulate the second amplification optical signal; and inject the modulated second signal into the network. | 10-29-2009 |
20090324246 | Method of Limiting the Non-Linear Phase Noise of a Phase-Modulated Optical Signal of Constant Amplitude, and an Associated Device - A non-linear phase noise limiter device limits the non-linear phase noise that affects a phase-modulated input optical signal of constant mean amplitude conveyed over a transmission line. The device is placed at a zero dispersion point of the transmission line, and it is suitable for suppressing amplitude fluctuations about a mean value in said optical signal. | 12-31-2009 |
20100135654 | MEASURING DIFFERENTIAL GROUP DELAY IN AN OPTICAL FIBER CONNECTION - The differential group delay is measured in an optical fiber connection for an optical signal undergoing a phase modulation BPSK or DPSK by a digital signal at a given rate. A polarization controller at an emerging end of the connection scans polarization states of the modulated optical signal. An emulator iteratively introduces an additional delay in the modulated optical signal emerging from the connection and combines the delayed modulated optical signal and the non delayed modulated optical signal which are both polarized along two orthogonal axes into a resulting optical signal. A polarization controller and a fixed polarizer select a polarization state in the resulting optical signal along one of bisecting lines of the orthogonal axes into a linearly polarized signal. An eye diagram or a spectrum of the polarized signal is acquired by a digital oscilloscope or an optical spectrum analyzer to determine the differential group delay. | 06-03-2010 |
20100142950 | HIGH BIT RATE BIDIRECTIONAL PASSIVE OPTICAL NETWORK, ASSOCIATED OPTICAL EXCHANGE AND LINE TERMINATION DEVICE - The invention relates to a passive optical network comprising an optical exchange linked by at least one optical fiber to at least one line termination device of said network, able to transmit a downlink optical signal phase-modulated in NRZ-DPSK format and to receive an uplink optical signal. | 06-10-2010 |
20130011141 | METHOD AND DEVICE FOR INSERTING/EXTRACTING OPTICAL SUBBAND INTO MULTIBAND OPTICAL OFDM SIGNAL - A device for inserting/extracting at least one optical subband into an optical channel consisting of a plurality of optical subbands. The device includes an extraction means that is capable of extracting a first optical subband belonging to the optical channel, a suppression means that is arranged so as to obtain a filtered optical channel from the optical channel wherein at least one second subband is suppressed, and a coupling means that is capable of inserting a replacement optical subband in place of the second subband in the filtered optical channel so as to obtain a modified optical channel. The device moreover relates to an optical insertion/extraction switcher, using one or more insertion/extraction devices, and to the corresponding insertion/extraction methods. | 01-10-2013 |
20130195445 | COMPENSATION OF MODAL DISPERSION OF POLARIZATION BY DETERMINISTIC JAMMING OF POLARIZATION - A method of calculating a series of control parameters to be applied to a polarization controller arranged so as to compensate for the modal dispersion of polarization affecting an optical signal passing through an optical link by calculating a plurality of polarization states of which the respective representations on a Poincaré sphere are separated from one another by a distance greater than a minimum distance dependent on an acceptable threshold of bit error ratios and, for each state of polarization thus calculated, associating at least one control parameter to be applied to the polarization controller with the calculated state of polarization. | 08-01-2013 |
20130308950 | OPTICAL PASS-BAND FILTERING METHOD AND DEVICE AND A DEVICE FOR INSERTING/EXTRACTING A FREQUENCY MULTIPLEXED OPTICAL SUB-BAND INTO/FROM AN OPTICAL SIGNAL - An optical pass-band filtering device comprises a duplicator able to provide duplicates of an optical signal to at least a first and a second output port; a first optical filtering unit connected to the first output port of the duplicator, said unit having a transfer function that decreases between a first pass wavelength and a first cut-off wavelength; a second optical filtering unit, connected to the second output port of the duplicator, said unit having a transfer function that increases between a second cut-off pass wavelength, the second cut-off wavelength being higher than the first; and coupler connected to the first and second optical filtering units that combine the optical signals filtered by said optical filtering units to obtain a filtered optical signal in which the optical band located between the first and second cut-off wavelengths is removed. A related device node using is also provided. | 11-21-2013 |
20150078764 | Frequency Synchronization for an OFDM Optical Receiver - A method is provided for receiving an optical signal including a step of coherently detecting the optical signal, outputting a multicarrier signal received, and a step of processing the received multicarrier signal, which includes a step of estimating a frequency offset affecting the received multicarrier signal relative to a corresponding multicarrier transmitter signal. The estimation step implements two sub-steps including: a sub-step of determining the entire portion of the frequency offset; and a sub-step of determining the fractional portion of the frequency offset. The sub-step of determining the entire portion implements a measurement, in the spectral range, of an offset between the position of at least one specific carrier of the multicarrier transmitter signal and the position of the corresponding specific carrier or carriers in the received multicarrier signal. | 03-19-2015 |
Patent application number | Description | Published |
20130310035 | Subscriber Identity Switch of a Communication Terminal - A method of switching subscriber identity between a first and second telecommunication stack of a multiple subscriber identity communication terminal is disclosed. The method comprises initiating a switch for a first subscriber identity from the first telecommunication stack to the second telecommunication stack and for a second subscriber identity from the second telecommunication stack to the first telecommunication stack. It is determined whether a value of at least one network related parameter associated with the first subscriber identity in the first telecommunication stack corresponds to a value of a corresponding at least one network related parameter associated with the first subscriber identity in the second telecommunication stack. Network registration of the first subscriber identity is performed only if the value of the at least one network related parameter associated with the first subscriber identity in the first telecommunication stack does not correspond to the value of a corresponding at least one network related parameter associated with the first subscriber identity in the second telecommunication stack. Corresponding computer program product, controller, arrangement, and multiple subscriber identity communication terminal are also disclosed. | 11-21-2013 |
20140038601 | SWITCHING ACTIVE SUBSCRIBER IDENTITY OF A COMMUNICATION TERMINAL - A method is disclosed of switching the active subscriber identity of a communication terminal which is capable at each moment in time of having only one active subscriber identity. An active subscriber identity switch from a first subscriber identity to a second subscriber identity is initiated. At least one parameter associated with a time of expiry of a timer associated with the first subscriber identity is stored. The first subscriber identity is deactivated and the second subscriber identity is activated. If an active subscriber identity switch from the second subscriber identity to the first subscriber identity is initiated and the first subscriber identity is activated, it may be determined whether the time of expiry of the timer associated with the first subscriber identity has passed. Network registration of the first subscriber identity may be performed only if the time of expiry of the timer associated with the first subscriber identity has passed. Corresponding computer program product, controller, arrangement and communication terminal are also disclosed. | 02-06-2014 |
20140106747 | Multi SIM Management - There is described a multiple subscriber identity arrangement having a modem capable of receiving messages related to either one of at least two subscriber identities, but not simultaneously. The arrangement further comprises a control unit configured to, when the modem performs communication activity associated with a first subscriber identity: determine whether gaps not allocated for the communication activity associated with the first subscriber identity coincide with paging occasions associated with a second subscriber identity; and, if at least one gap not allocated for the communication activity associated with the first subscriber identity coincides with at least one paging occasion associated with the second subscriber identity, cause the modem to switch to the second subscriber identity to read one paging message on a paging channel associated with the second subscriber identity. | 04-17-2014 |
20140248922 | Measurement Gaps Triggering for a Multi Sim Mobile Device - There is described a multiple subscriber identity arrangement comprising a modem ( | 09-04-2014 |
20140378084 | Limited Service State Control - Limited service state controller ( | 12-25-2014 |