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 Optical communication device, optical communication system and optical communication method patent thumbnailnew patent Optical communication device, optical communication system and optical communication method
An optical communication device equipped with: a reception unit that receives a wavelength-multiplexed optical signal; a demultiplexing unit that demultiplexes the wavelength-multiplexed optical signal into first demultiplexed light that includes a first wavelength and second demultiplexed light that includes a second wavelength; a processing unit capable of performing a prescribed process on a signal possessed by the first demultiplexed light; and a multiplexing unit that multiplexes the first demultiplexed light on which the prescribed process had been performed and the second demultiplexed light, and then outputs the resulting multiplexed light.. .

 Receiver-side modifications for reduced video latency patent thumbnailReceiver-side modifications for reduced video latency
A host has a graphics pipeline that process frames by portions (e.g., pixels or rows) or slices. A remote device transmits a video stream container via a network to the host.
Microsoft Technology Licensing, Llc


 System and  multimedia redirection for cloud desktop conferencing patent thumbnailSystem and multimedia redirection for cloud desktop conferencing
In certain information handling system environments, remote conferencing may require the transmission of multi-media content. The server may query a client that has joined the remote conference to determine if the client supports the encoding format of the multi-media content.
Dell Products L.p.


 Curved grating spectrometer and wavelength multiplexer or demultiplexer with very high wavelength resolution patent thumbnailCurved grating spectrometer and wavelength multiplexer or demultiplexer with very high wavelength resolution
The present application discloses a system comprising a compact curved grating (ccg) and its associated compact curved grating spectrometer (cogs) or compact curved grating wavelength multiplexer/demultiplexer (wmdm) module and a method for making the same. The system is capable of achieving a very small (resolution vs.
Electronic Photonic Ic Inc. (epic Inc.)


 Display device having power saving glance mode patent thumbnailDisplay device having power saving glance mode
An example processing system for a display device includes driver circuitry and a control circuit. The driver circuitry is coupled to a plurality of source line nodes in the display device, each source line node of the plurality of source line nodes coupled to a plurality of subpixel columns through a demultiplexer having a plurality of switches.
Synaptics Incorporated


 Temperature insensitive demux/mux in silicon photonics patent thumbnailTemperature insensitive demux/mux in silicon photonics
A temperature insensitive demux/mux device whose wavelength does not change by environment temperature is provided for wdm application. The temperature insensitive demux/mux device includes a waveguide-based delay-line-interferometer configured to receive an input light bearing multiplexed wavelengths and output a first output light bearing the same multiplexed wavelengths but with a shifted intensity peak position.
Inphi Corporation


 Wavelength division multiplexing and demultiplexing transistor outline (to)-can assemblies for use in optical communications, and methods patent thumbnailWavelength division multiplexing and demultiplexing transistor outline (to)-can assemblies for use in optical communications, and methods
Wavelength division multiplexing and demultiplexing (wdm) tosa and rosa to-can assemblies are provided that are capable of transmitting and receiving optical data signals, respectively, having more than three wavelengths, that can be packaged in smaller packages than those used for existing bosas and tri-osas, that can be manufactured without requiring a large amount of plant retooling or capital investment, and that can be made available in the market relatively quickly.. .
Avago Technologies General Ip (singapore) Pte. Ltd


 Method and  decoding multiplexed information in a chromatographic system patent thumbnailMethod and decoding multiplexed information in a chromatographic system
Implementations of methods and apparatuses are disclosed for decoding multiplexed information in a chromatographic system. Implementations may include the method of pulsing ions from an ion source through an analyzer according to a predetermined multiplexing scheme, each pulse including one or more ions corresponding to a sample, detecting a plurality of ion strikes at a detector, determining a data point for each ion strike, wherein each data point includes an intensity of a detected ion strike and a time of the detected ion strike, maintaining a multiplexed spectrum of the data points, the multiplexed spectrum including the data points, and demultiplexing the time shifted spectrum using the data points of the multiplexed spectrum..
Leco Corporation


 Integrated spectrometers with single pixel detector patent thumbnailIntegrated spectrometers with single pixel detector
An integrated waveguide based spectrometer is described. The spectrometer comprises a sensing region for receiving multi-wavelength radiation for irradiating a sample in the sensing region, a wavelength demultiplexing element arranged for capturing said multi-wavelength radiation after interaction with the sample and for providing a number of wavelength demultiplexed radiation outputs or a number of different groups of wavelength demultiplexed radiation outputs, an integrated modulator for differently modulating the different demultiplexed radiation outputs or different groups of demultiplexed radiation outputs, and a multiplexer element for multiplexing the differently modulated demultiplexed radiation outputs or the differently grouped demultiplexed radiation outputs..
Imec Vzw


 Content output device and program patent thumbnailContent output device and program
A data processing device, includes a bus, a demultiplexer which is coupled to the bus, and which receives a content including video data and audio data. A memory interface which is coupled to the bus, and which is connectable to a memory for temporarily accumulating the video data and the audio data output from the demultiplexer in accordance with a delay amount..
Renesas Electronics Corporation


Aligning and directly optically coupling photodetectors to optical demultiplexer outputs in a multichannel receiver optical subassembly

A multi-channel receiver optical subassembly (rosa) such as an arrayed waveguide grating (awg), with outputs directly optically coupled to respective photodetectors such as photodiodes. In one embodiment, an awg may be configured such that optical components of the awg do not interfere with direct optical coupling, and the wire bonding points on the photodiodes may also be configured such that wire bonding does not interfere with direct optical coupling.
Applied Optoelectronics, Inc.

Optical multiplexer/demultiplexer device comprising porro prisms

Described herein is a multiplexer/demultiplexer optical device (100) comprising: a first beam-splitter cube (bs1); a second beam-splitter cube (bs2) optically coupled to the first splitter (bs1); a first porro-prism reflector (pr1), which is optically coupled to the second splitter (bs2); and a second porro-prism reflector (pr2), which is optically coupled to the second splitter (bs2) and is structured for introducing into optical beams that traverse it a phase delay depending upon an orbital angular momentum of the optical beams and upon an orientation of the second reflector. The device is a michelson interferometer structured for obtaining constructive/destructive interference such as to multiplex/demultiplex on/from corresponding input/output ports, on the basis of values of orbital angular momentum, an optical beam comprising a plurality of concentric optical beams with cylindrical symmetry having different values of orbital angular momentum..
Politecnico Di Milano

Display device and driving method thereof

A display device includes a first pixel coupled to a scan line and a first data output line, a second pixel coupled to the scan line and a second data output line, a scan driver configured to supply a scan signal to the scan line, a data driver configured to supply a first data signal, a second data signal, and a first initializing voltage to a data input line, and a demultiplexer configured to receive the first data signal and the second data signal, to transmit the first data signal to the first data output line, and to transmit the second data signal and the first initializing voltage to the second data output line.. .
Samsung Display Co., Ltd.

Arrayed waveguide grating multiplexer-demultiplexer and related control method

An arrayed waveguide grating multiplexer/demultiplexer includes an array of optical waveguides ordered in sequence from a shortest waveguide up to a longest waveguide, and identical phase shifters configured to be controlled by a same control signal. Each phase shifter increases/decreases an optical path of an optical waveguide by the same quantity based on the control control signal..
Stmicroelectronics S.r.l.

Recovering from discontinuities in time synchronization in audio/video decoder

A decoder for decoding compressed video and audio data. The demultiplexer provides a prediction of a presentation timestamp (pts) after a discontinuity occurs that is conditional on whether data of the elementary bit stream is still present in the demultiplexer and control decoder module when the discontinuity is detected.
Freescale Semiconductor, Inc.

Demultiplexer, display device including the same, and driving the display device

A demultiplexer includes: a first transistor connected between a data input line and a first data output line; a second transistor connected between the data input line and a second data output line; and an initializing transistor configured to be simultaneously turned on with the first transistor to transmit an initializing voltage to the second data output line.. .
Samsung Display Co., Ltd.

Multiplexed excitation emission matrix spectroscopy

Described herein is an excitation emission matrix (eem) spectrometer and method, comprising a multiplexer that encodes excitation light produced by at least one excitation light source; and a demultiplexer that decodes encoded light emitted from a sample, and produces an output indicative of a characteristic of the sample. Embodiments are described wherein the multiplexer and the demultiplexer may comprise fdm or ofdm, and wherein both the excitation light and the emitted light may be encoded using a dma or a slm.
Queen's University At Kingston

Broadband high-speed wavelength-division multiplexed receiver using multiple photodetectors per channel

An optical receiver, used in wavelength-division multiplexing, has multiple photodetectors per channel. The optical receiver comprises a demultiplexer to separate incoming light into different output waveguides, one output waveguide for each channel.
Skorpios Technologies, Inc.

Optical communications apparatus and method

Embodiments of the present invention provide an optical communications apparatus, where the apparatus includes: an input system, a first optical switch array, and an output system, where the input system includes n input ports that are one-dimensionally arranged on a first plane, a first beam expander, a demultiplexer, and a first optical path changer; the first optical switch array includes n×k first optical switch units that are two-dimensionally arranged on a second plane, and the first optical switch units can rotate in a first axial line direction and a second axial line direction; and the output system includes a second optical path changer, a second beam expander, a second optical switch array, and m output ports that are two-dimensionally arranged.. .
Huawei Technologies Co., Ltd.

Camera system encoder/decoder architecture

An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine.
Gopro, Inc.

Pulse generation circuit and semiconductor device

Two gate drivers each comprising a shift register and a demultiplexer including single conductivity type transistors are provided on left and right sides of a pixel portion. Gate lines are alternately connected to the left-side and right-side gate drivers in every m rows.
Semiconductor Energy Laboratory Co., Ltd.

Controlling time division duplex operation

A central node for digital subscriber line access multiplex. The central node supports a plurality of subscriber devices and comprises: a digital interface for upstream communication; a converter device for each one of the subscriber devices wherein each converter device comprises an a/d, analogue to digital, converter and a d/a, digital to analogue, converter; an analogue optical interface for communication of analogue signals for all of the subscriber devices with an intermediate distribution node for digital subscriber line access multiplex; a digital multiplexer/demultiplexer connected between the digital interface and the plurality converter devices; an analogue multiplexer/demultiplexer connected between the analogue optical interface and the plurality of converter devices; and a control signal generator connected to the analogue multiplexer/demultiplexer, wherein the control signal generator is arranged to generate an analogue control signal for controlling time division duplex operation at the intermediate distribution node..
Telefonaktiebolaget Lm Ericsson (publ)

Polarization demultiplexing of optical signals

An example embodiment includes optical receiver that includes a polarization beam splitter (pbs), a polarization controller, and a forward error correction (fec). The pbs is configured to split a received optical signal having an unknown polarization state into two orthogonal polarizations (x′-polarization and y′-polarization).
Finisar Corporation

Optical time domain reflectometer implementation apparatus and system

Embodiments disclose an otdr implementation apparatus. The apparatus includes m transmitters, configured to transmit m optical waves of different wavelengths, where m is greater than or equal to 2.
Huawei Technologies Co., Ltd.

Encoding/decoding audio and/or speech signals by transforming to a determined domain

A method and apparatus to encode and/or decode a speech signal and/or an audio signal. The apparatus includes a first domain transforming unit, a frequency domain encoding unit, and a multiplexing unit to encode the speech signal and/or an audio signal.
Samsung Electronics Co., Ltd.

Medium access control layer architecture for supporting enhanced uplink

A method and apparatus for enhanced uplink communication is disclosed. A node-b receives a scheduling request from a wireless transmit/receive unit (wtru).
Interdigital Technology Corporation

Device and bandwidth extension for audio signals

An audio signal decoding apparatus is provided that includes a receiver that receives an encoded information, a memory, and a processor that demultiplexes low-band encoding parameters, index information, and scale factor information from the encoded information. The processor also decodes the low-band encoding parameters to obtain a synthesized low frequency spectrum, replicates a high frequency subband spectrum based on the index information using the synthesized low frequency spectrum, and adjusts an amplitude of the replicated high frequency subband spectrum using the scale factor information.
Panasonic Intellectual Property Corporation Of America

Image sensor alignment in a multi-camera system accelerator architecture

An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine.
Gopro, Inc.

Motion estimation and detection in a camera system accelerator architecture

An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine.
Gopro, Inc.

Image capture accelerator

An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine.
Gopro, Inc.

Camera system transmission in bandwidth constrained environments

An image capture accelerator performs accelerated processing of image data. In one embodiment, the image capture accelerator includes accelerator circuitry including a pre-processing engine and a compression engine.
Gopro, Inc.

Wdm mux/demux on cable and methods of making the same

Techniques for wdm mux/demux on cable and methods of making the same are described according to one aspect of the present application, a unit designed to provide multiplexing or demultiplexing (mux/demux) functions is implemented on cable. In other words, the mux/demux unit is coupled by a multi-fiber cable to a system (e.g., a system rack for router or switch that has multiple pluggable transceiver slots)..
Alliance Fiber Optic Products, Inc.

Multiplexer/demultiplexer based on diffraction and reflection

Transmissive diffraction grating(s), reflector(s), and multiple optical sources/receivers are arranged such that each one of multiple optical signals at corresponding different wavelengths co-propagating along a multiplexed beam path would: (i) be transmissively, dispersively diffracted at a multiplexed transmission region of a grating; (ii) propagate between the multiplexed transmission region and multiple demultiplexed transmission regions of a grating undergoing reflection(s) from the reflector(s); (iii) be transmissively, dispersively diffracted at the demultiplexed transmission regions; and (iv) propagate between the demultiplexed transmission regions and the sources/receivers along multiple demultiplexed beam paths.. .
Finisar Corporation

Tunable filters for spectral sensing

A spectroscopic analysis device for analysis of a sample comprising: a photonic integrated circuit (pic) comprising: an input (def) for receiving light from the sample; and a demultiplexer (demux) arranged to distribute the received light into at least a first optical chain (c1) and a second optical chain (c2); wherein each optical chain (c1, c2) of the photonic integrated circuit c(pic) further comprises a tunable bandpass filter (tbf1, tbf2) and a variable attenuator (att1, att2) and a photodetector (pd1, pd2) arranged respectively to filter and to attenuate and to detect the light distributed into its corresponding optical chain (c1, c2).. .
Koninklijke Philips N.v.

Optical spot array pitch compressor

An apparatus including a passive wavelength division multiplexing (wdm) demultiplexer (demux) or a passive wdm multiplexer (mux), an active photo diode (pd) array or an active laser diode (ld) array, and a compressing device disposed between the passive wdm demux or the passive wdm mux and the active pd array or the active ld array. The compressing device changes the optical spot pitch of the passive wdm demux or the passive wdm mux o match the pitch of the active pd array or the active ld array.
Alliance Fiber Optic Products, Inc.

Demultiplexing bonded gre tunnels

A hybrid access (hya) network for communicating between a hybrid access gateway (hag) and a hybrid access customer premises equipment (hcpe) using a fixed wired connection and a wireless connection is presented. The hag demultiplexes messages of bonded generic routing encapsulation (gre) tunnels using a bonding key value, which is provided to the hcpe during bonded tunnel establishment.
Futurewei Technologies, Inc.

Optical module and manufacturing the same

An optical module includes: a pedestal; a glass optical multiplexer/demultiplexer fixed onto the pedestal via a uv adhesive; and a metal block which is smaller than the glass optical multiplexer/demultiplexer and is fixed to a top surface of the glass optical multiplexer/demultiplexer.. .
Mitsubishi Electric Corporation

Time-resolved laser-induced fluorescence spectroscopy systems and uses thereof

The invention provides systems for characterizing a biological sample by analyzing emission of fluorescent light from the biological sample upon excitation and methods for using the same. The system includes a laser source, collection fibers, a demultiplexer and an optical delay device.
Cedars-sinai Medical Center

Optical network

An optical network transmits a wavelength division multiplexing optical signal from a transmission to a reception node via a reconfigurable optical add/drop multiplexer and/or path cross-connect apparatuses. When optical or optical super channels made of successive optical subcarriers input from input optical fibers are routed or switched to an output optical fiber in the multiplexer and/or apparatus passed through by a wavelength division multiplexing optical signal transmitted from the predetermined transmission node to the predetermined reception node, the adjacent channels output to the same output fiber in each input fiber is collectively demultiplexed without being demultiplexed for the channels and is routed or switched to the output fiber.
Japan Science And Technology Agency

Low latency fiber optic local area network

The present invention is directed to a low latency fiber optic local area network with a network and a plurality of nodes connected through optical fibers. Each node has a plurality of bi-directional input/output interfaces.
United States Of America As Represented By The Secretary Of The Navy

Apparatus and method to improve compression and storage data

Methods, computer-readable media and apparatuses to improve storage and compression of data are disclosed. A processor receives a data stream, wherein the data stream comprises multiplexed data from a plurality of different sources, analyzes the data stream to identify a source of the plurality of different sources for each block of data of the data stream, demultiplexes the data stream based on the source of the each block of data of the data stream and applies a compression to the data stream that is demultiplexed based on the source of the each block of data of the data stream..
At&t Intellectual Property I, L.p.

Multipoint-to-multipoint radio data transport

The invention concerns a system for multipoint-to-multipoint radio data transport, comprising a device for switching samples of digitised radio data called samples, transmitted by a device for the digital processing of antenna signals called antenna device (ru1, ru2), via a first data link (dl11, dl12), to a plurality of recipient antenna controller devices (du1, du2) identified by a respective plurality of controller identifiers, the switching device (dd) comprising the following modules: interception of first data frames (t11, t12) from the antenna device and intended for the plurality of controller devices, the first frames comprising the samples, demultiplexing the samples from the intercepted first data frames, extracting the controller identifiers from the intercepted first data frames, grouping together the demultiplexed samples by controller identifier, multiplexing the samples by group in second data frames (t21, t22), a second data frame being associated with a controller identifier, transmitting the second data frames via a plurality of second data links (dl21, dl22) associated respectively with the plurality of recipient antenna controller devices.. .
Orange

Digital broadcast receiver and processing caption thereof

A digital cable broadcast receiver and a method for automatically processing caption data of various standards and types, is disclosed. The digital broadcast receiver includes: a demultiplexer for dividing a received broadcast stream into video data, audio data, supplementary information; a controller for determining whether caption data included in the video data is digital caption data or analog caption data on the basis of caption information included in the supplementary information, and outputting a control signal according to a result of the determining; a digital caption decoder for extracting and decoding digital caption data from the video data according to the control signal; and an analog caption decoder for extracting and decoding analog caption data from the video data according to the control signal..
Lg Electronics Inc.

Wireless communication system, wireless communication device, and wireless communication method

In order to prevent a receiving wireless communication device from growing to great size when the variable modulation is used in a multipath-fading channel, a wireless communication system according to an exemplary aspect of the present invention includes: a first wireless communication device; and a second wireless communication device, the first wireless communication device including time-division multiplexing means for time-division multiplexing a first modulated signal and a second modulated signal, and transmission means for transmitting a time-division multiplexed signal, the second wireless communication device including time-division demultiplexing means for time-division demultiplexing the time-division multiplexed signal into a first demodulated signal and a second demodulated signal, a first adaptive filter for the first demodulated signal, a second adaptive filter for the second demodulated signal, adaptive control means for performing an adaptive control on the first adaptive filter and outputting an output of the adaptive control to the second adaptive filter, first demodulation means for demodulating an output of the first adaptive filter, second demodulation means for demodulating an output of the second adaptive filter.. .
Nec Corporation

Converter module

A converter module is provided that is configured to provide data connectivity between at least two external devices, where the converter module comprises a pair of first connectors and up to eight second connectors. The pair of first connectors is configured to be plugged into and interfaced with ports on a first external device.
Cisco Technology, Inc.

Multiplexing web requests for improved performance

A request multiplexing system is described herein that takes multiple asynchronous requests from a client to multiple server endpoints and multiplexes the requests at the client into a single request to a new server endpoint. The new endpoint demultiplexes the requests at the server, calls the pre-existing separate endpoints to get the correct response for each request, combines the responses into a single multiplexed response, and returns the combined response to the client.
Redfin Corporation

Flexible grid twdm-pon architecture and intelligent set-up for twdm-pon

An approach to proving a flexible grid architecture for time and wavelength division multiplexed passive optical networks is described. One embodiment includes an optical transmitter array configured to transmit an optical signal, an optical combiner coupled to the optical transmitter array configured to receive unlocked wavelengths from the optical transmitter array and output a single optical signal, and an optical amplifier coupled to the optical combiner configured to boost downstream optical power.
Futurewei Technologies, Inc.

Optical line terminal arrangement, apparatus and methods

A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths.
Coriant Operations, Inc.

In-situ ultrasonic measuring system for natural gas flux at the hydrocarbon seeps at the seafloor

An in-situ and on-line acoustic measuring system for natural gas flux at the hydrocarbon seeps at a seafloor includes a seepage tent and a flow measuring channel. The flow measuring channel includes a lower bubble breaking channel, an ultrasonic transducer measuring channel and an upper bubble breaking channel.
Guangdong University Of Technology

Method and reproducing multimedia data

The present invention provides a method and an apparatus for reproducing multimedia data in a broadcasting and communication system. The apparatus for reproducing multimedia data according to an embodiment of the present invention comprises: a receiver for receiving multimedia data; a data processor for processing the received multimedia data and extracting a data unit and signaling information; a synchronization information processor for extracting synchronization information related to a broadcasting image provided by a current service from the signaling information; a service demultiplexer for extracting audio data or video data from the data unit; and a broadcasting image reproducer for decoding the audio data or video data, and reproducing the decoded audio data or decoded video data on the basis of the synchronization information..
Kyonggi University Industry & Academia Cooperation Foundation

Display apparatus and driving method thereof

A display apparatus includes: a display panel including pixels respectively connected to gate lines and data lines; a data driving circuit to output a data output signal in response to a data signal; a demultiplexer circuit to provide first and second data lines from among the data lines with the data output signal, in response to control signals; and a driving controller to provide the data signal and the control signals. The demultiplexer circuit includes: a switching transistor including a first electrode to receive the data output signal, a second electrode connected to the first data line, and a gate electrode connected to a first node; and a switching control circuit to charge the first node to turn on the switching transistor during a first interval of a first horizontal period, and to discharge the first node during a second interval of the first horizontal period..
Samsung Display Co., Ltd.



Demultiplex topics:
  • Demultiplex
  • Multiplexing
  • Speech Recognition
  • Processing Device
  • Ldpc Codes
  • Wireless Sensor
  • Formatting
  • Fourier Transform
  • Fast Fourier Transform
  • Transmitting And Receiving
  • Downstream
  • Optical Fiber
  • Image Processing
  • Spectrometer
  • Elliptical Mirror


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