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Multiplex patents



      

This page is updated frequently with new Multiplex-related patent applications.




Date/App# patent app List of recent Multiplex-related patents
04/07/16
20160100400 
 Beacon based time division multiplexing synchronization for multiple radio access technology coexistence patent thumbnailBeacon based time division multiplexing synchronization for multiple radio access technology coexistence
Methods, systems, and devices are described for beacon based time division multiplexing (tdm) synchronization for multiple radio access technology (rat) coexistence. In some aspects, tdm time slots corresponding to a plurality of rats for wireless communication among a plurality of devices may be identified, and the tdm time slots may be synchronized based at least in part on a timing beacon associated with a first of the plurality of rats..
Qualcomm Incorporated


04/07/16
20160100398 
 Uplink control information transmission method, user equipment, and base station patent thumbnailUplink control information transmission method, user equipment, and base station
Embodiments of the present invention provide an uplink control information transmission method, user equipment, and a base station. In a first uplink demodulation reference signal (ul dmrs) pattern, resource elements (res) in one orthogonal frequency division multiplexing (ofdm) symbol in an uplink subframe are used to carry the ul dmrs.
Huawei Technologies Co., Ltd.


04/07/16
20160100333 
 Multiplexing channels by a medium acces controller patent thumbnailMultiplexing channels by a medium acces controller
A code division multiple access (cdma) communication device comprises a medium access controller (mac) configured to receive data from a plurality of channels. Each channel is associated with a priority and an identifier.
Interdigital Technology Corporation


04/07/16
20160099851 
 Method and system for optical connection validation in a reconfigurable optical add-drop multiplexer (roadm) node patent thumbnailMethod and system for optical connection validation in a reconfigurable optical add-drop multiplexer (roadm) node
A method of validating connections in an optical add/drop multiplexer (oadm) that includes a plurality of modules configured to route optical signals through the oadm, and at least one multi-fiber cable connecting modules of the oadm. A light source coupled to a first port of a first module is controlled to emit a test light.
Ciena Corporation


04/07/16
20160099824 
 Method and system of cyclic prefix overhead reduction for enabling cancellation of inter-symbol and inter-carrier interferences in ofdm wireless communication networks patent thumbnailMethod and system of cyclic prefix overhead reduction for enabling cancellation of inter-symbol and inter-carrier interferences in ofdm wireless communication networks
A system and method are provided for reducing the overhead caused by the presence of the cyclic prefix while enabling inter-carrier interference (ici) and inter-symbol interference (isi) cancellation in an orthogonal frequency division multiplexing (ofdm) network that includes an ofdm transmitter and an ofdm receiver.. .
Telefonica, S.a.


04/07/16
20160099823 
 Real time ofdm transmission system patent thumbnailReal time ofdm transmission system
An ofdm (orthogonal frequency division multiplexing) transmitter includes an inverse fast fourier transform circuit, which, in operation, generates, based on digital input data, a complex time-varying digital signal having real and imaginary components; and a multiplexer adapted to generate a time-multiplexed digital signal by time-multiplexing one or more of the real components with one or more of the imaginary components.. .
Stmicroelectronics Sa


04/07/16
20160099789 
 System and  tone mapping during single user and multiple user operating modes including transmissions respectively of ofdm symbols and ofdma symbols in a wlan patent thumbnailSystem and tone mapping during single user and multiple user operating modes including transmissions respectively of ofdm symbols and ofdma symbols in a wlan
A system including a direct current tone, guard tone, data tone allocation, mapping, and inverse fourier transform (ift) modules. The direct current tone module determines a number of direct current tones based on whether a network device is operating in a single user or multi-user mode.
Marvell World Trade Ltd.


04/07/16
20160099772 
 Systems and methods for detection of intrusion in optical fiber patent thumbnailSystems and methods for detection of intrusion in optical fiber
Techniques for detecting intrusion in an optical fiber can be realized as a method comprising: receiving an optical signal; demultiplexing the received optical signal into one or more payload data signals, a first control signal, and a second control signal; comparing a ratio of power levels of the first and second control signals with a threshold ratio; comparing the power level of the control first signal with a first threshold power value and the second control signal with a second threshold power value if the ratio of the power levels of the first and second control signals exceeds the threshold ratio; and generating an intrusion alarm signal, if the first signal is below the first threshold power value and the second signal is below the second threshold power value.. .
Compass Electro Optical Systems Ltd.


04/07/16
20160099727 
 Digital broadcasting system and data processing method patent thumbnailDigital broadcasting system and data processing method
A method of transmitting broadcast signals includes forward error correction (fec) encoding mobile data; interleaving the fec encoded mobile data; encoding signaling information for the mobile data; mapping the interleaved mobile data and the encoded signaling information into a data unit, wherein the data unit includes a first region and a second region, wherein the first region is concatenated with the second region, wherein the first region includes known data and the encoded signaling information, and wherein the second region includes known data and the encoded mobile data; and transmitting the broadcast signals including the data unit, wherein the data unit is multiplexed with a data unit of main data in a specific time period, wherein the signaling information includes information of the data unit having the interleaved mobile data.. .
Lg Electronics Inc.


04/07/16
20160099722 
 Method and  calibrating comparator offset of successive-approximation-register analog-to-digital converter patent thumbnailMethod and calibrating comparator offset of successive-approximation-register analog-to-digital converter
A circuit and method compensates for comparator offset in a successive approximation register analog-to-digital converter. The circuit includes a multiplexed sampler to sample either a common mode voltage or an input signal.
Realtek Semiconductor Corp.


04/07/16
20160099037 

Memory device with differential bit cells


In some examples, a memory device may be configured to utilize differential bit cells formed from two or more tunnel junctions. In some cases, the tunnel junctions forming the differential bit cell may be arranged to utilize shared read circuitry to reduce device mismatch.
Everspin Technologies, Inc.


04/07/16
20160098956 

Organic light emitting display device


An organic light emitting display device includes a display area and a non-display area. The display area includes display pixels at crossing areas of data lines, scan lines, and emission control lines.
Samsung Display Co., Ltd.


04/07/16
20160098506 

Signal delay flip-flop cell for fixing hold time violation


A signal delay cell for use in resolving hold time violations in an ic has a first multiplexer having a first functional data input node and a scan data input node ti and a second multiplexer having a second functional data input node, a second input node connected to the output of the first multiplexer and a flip-flop module. The propagation of a data input signal applied to the first multiplexer is delayed, and the hold margin of the flip-flop module is increased by transit through the first multiplexer.
Freescale Semiconductor, Inc.


04/07/16
20160098152 

Instrument detection with an optical touch sensitive device


An optical touch-sensitive device detects touch events caused by instruments (e.g., pens, styluses) and distinguishes these events from touch events caused by fingers. In some embodiments, different instruments can also be distinguished.
Rapt Ip Limited


04/07/16
20160097901 

Apparatus and optical time domain reflectometry


An optical signal routing device may include a first lens, second lens and a wavelength division multiplexer (“wdm”) filter positioned between the first and second lenses. The wdm filter may reflect a signal of a first wavelength with a first attenuation and pass the first wavelength signal attenuated by at most a second attenuation to the second lens, the first attenuation exceeding the second attenuation by a first predetermined amount.
Go!foton Holdings, Inc.


04/07/16
20160097767 

Multiplexed volumetric bar chart chip for point of care biomarker and analyte quantitation


Wherein at least one of the top plate and the bottom plate is configured to slide relative to the other of the top plate and the bottom plate in order to form a plurality of columns, with each of the plurality of columns in communication with each of the plurality of channels.. .

04/07/16
20160097090 

Methods for multiplexing recombinase polymerase amplification


This disclosure provides for methods and reagents for rapid multiplex rpa reactions and improved methods for detection of multiplex rpa reaction products. In addition, the disclosure provides new methods for eliminating carryover contamination between rpa processes..
Alere San Diego, Inc.


04/07/16
20160097084 

Kinase activity detection methods


A strategy to take advantage of time-resolved luminescence of ln3+-chelated phosphotyrosine-containing peptides, which facilitate efficient energy transfer to small molecule fluorophores conjugated to the peptides to produce orthogonally-colored biosensors for two different kinases is provided. The method enables multiplexed detection with high signal to noise in a high-throughput-compatible format and a platform that could be applied to other lanthanide metal and fluorophore combinations to achieve even greater multiplexing without the need for phosphospecific antibodies..

04/07/16
20160096028 

External charger for an implantable medical device system having a coil for communication and charging


Disclosed in an improved medical implantable device system including an improved external charger that is able to communicate with an external controller and ipg using the communication protocol (e.g., fsk) used to implement communications between the external controller and the implant. The external controller as modified uses its charging coil to charge the implant, and also to communicate with the other devices in the system.
Boston Scientific Neuromodulation Corporation


04/07/16
20160095559 

Photon-counting detector with count-rate dependent multiplexing


A photon-counting system includes photon-counting detectors that output photon-counting signals to indicate a number of photons impinging on the photon-counting detectors. The system also includes analog-to-digital conversion circuits, which convert one of the photon-counting signals into a digital photon-counting signals, and a processor that processes the digital photon-counting signals to extract information from the photon-counting signals.
Toshiba Medical Systems Corporation


04/07/16
20160095551 

Method of attaching a disposable sheath


A pressure sensor and pressure-sensing catheter in which a deformable pressure sensing membrane is separated from an inner metalized surface on a rigid support by an air gap. An input allows a voltage to be applied to an electrode on the sensing membrane and an output allows reading of the signal modulation from the support surface.
Covidien Lp


03/31/16
20160095143 

Remote provisioning of wireless stations with confirmation


Aspects of the present disclosure are related to provisioning of wireless devices. In an embodiment, a wireless device (sought to be provisioned) receives values for provisioning parameters from an external user device, and attempts to join a wireless local network according to the received values for the provisioning parameters.
Gainspan Corporation


03/31/16
20160095127 

Method of resource block (rb) bundling


A method of sizing bundled resource blocks (rbs) having at least one user equipment (ue)-specific demodulation reference signal in an orthogonal frequency division multiplexing (ofdm) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one ue-specific demodulation reference signal; receiving a plurality of resource blocks (rbs) from a network, wherein the plurality of resource blocks comprises the at least one ue-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of rbs is dependent on a size of a system bandwidth , the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of rbs by bundling the plurality of rbs into rb bundles, wherein the size of each rb bundle is based on the one of the four size ranges..
Lg Electronics Inc.


03/31/16
20160095122 

Integrated circuit for channel arrangement and radio communication


Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit (12) executes a modulation process on dch data after encoded so as to generate a dch data symbol.
Panasonic Intellectual Property Corporation Of America


03/31/16
20160095069 

Method of controlling the transmission power of uplink channels and signals and apparatuses thereof


Provided are a method and an apparatus for a user equipment (ue) for multiplexing at least one uplink channel and an uplink signal and for controlling the transmission power for an uplink channel and an uplink signal. A method of a ue for controlling an uplink transmission power may include setting the uplink maximum transmission power for each of a plurality of cell groups including one or more serving cells; and allocating the transmission power for an uplink channel and an uplink signal based on at least one of: the uplink maximum transmission power, a total sum of the transmission power of one or more uplink channels and an uplink signal transmitted in each of the plurality of cell groups, and the total maximum transmission power of the ue, and the uplink channel includes a pucch or a pusch, and the uplink signal includes a srs..
Kt Corporation


03/31/16
20160094862 

Time series data encoding apparatus, method, and program, and time series data re-encoding apparatus, method, and program


A time series data encoding apparatus includes a time series data encoding means 11 for compressing and encoding time series data thereby to generate encoded bit streams, a virtual buffer 12 for calculating a transition of the amount of data accumulated in a buffer in a virtual decoder defined according to an encoding system, a buffer usage analyzing means 13 for analyzing the transition of the amount of accumulated data thereby to reset parameters indicating a size of the buffer and the amount of accumulated data in the buffer at a predetermined time, and a multiplexing means 14 for multiplexing the encoded bit streams generated by the time series data encoding means 11 and the parameters reset by the buffer usage analyzing means 13.. .
Nec Corporation


03/31/16
20160094860 

Image encoding device, image encoding method, image decoding device, and image decoding method


An image encoding device includes an encoder that encodes a first field of a specific frame as an intra picture which is predicted by using only an ultra prediction, and that encodes the first field of the above-described specific frame, a second field of the above-described specific frame, a picture whose encoding order is later than that of the first field of the above-described specific frame later and whose display order is earlier than that of the first field, and another picture whose encoding order and also display order are later than those of the first field of the above-described specific frame in order of those pictures, and a multiplexer that multiplexes information showing that the first field of the above-described specific frame is a picture, in a bitstream, at which decoding can be started into the above-described bitstream.. .
Mitsubishi Electric Corporation


03/31/16
20160094859 

Directed interpolation and data post-processing


An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm.
Dolby Laboratories Licensing Corporation


03/31/16
20160094375 

Pilot design for wireless system


The description herein relates to pilot designs for an orthogonal frequency division multiplexing (ofdm) based communication system. In at least one embodiment, the communication system is one operating according to the ieee 802.16m, or wimax, standard.
Microsoft Technology Licensing, Llc


03/31/16
20160094331 

Multiplexers and duplexers having active cancellation for improved isolation between transmit and receive ports


A multiplexer is configured to receive a transmit signal from a first amplifier and to provide a receive signal to a second amplifier. A leakage signal is transmitted to a path leading to the second amplifier.
Avago Technologies General Ip (singapore) Pte. Ltd .


03/31/16
20160094330 

Systems and methods for selecting digital content channels using low noise block converters including digital channelizer switches


Systems and methods are provided for selecting data from intermediate frequency signals, corresponding to received signals (e.g., satellite signals) carrying modulated data, using digital channelizer switches. An example digital channelizer switch may comprise a plurality of high speed analog-to-digital converters configured to digitize the intermediate frequency signals; a plurality of digital channelizers configured to digitally tune data from the digitized intermediate frequency signals; a multiplexer configured to select one or more digitized intermediate frequency signal generated by the plurality of high speed analog-to-digital converters as inputs to the plurality of digital channelizers; and a high speed digital-to-analog converter configured to generate an analog output signal using digitally tuned data by the digital channelizer, from at least one digitized intermediate frequency signal..
Entropic Communications, Llc


03/31/16
20160094326 

Method and transmitting channel state information reference signal


A base station includes a plurality of first resource elements (res) corresponding to at least two of a second orthogonal frequency division multiplexing (ofdm) symbol, a third ofdm symbol, and a fourth ofdm symbol of a first time slot, in a first csi-rs resource pool configured in a first subframe including the first time slot and a second time slot subsequent to the first time slot. Furthermore, the base station transmits a csi-rs at least one of res included in the first csi-rs resource pool..
Electronics And Telecommunications Research Institute


03/31/16
20160094308 

Optical interconnection methods and systems exploiting mode multiplexing


Optical solutions to address and overcome the issues of superseding/replacing electrical interconnection networks have generally exploited some form of optical space switching. Such optical space switching architectures required multiple switching elements, leading to increased power consumption and footprint issues.

03/31/16
20160094306 

Optical transmission apparatus and optical transmission control method


An optical transmission apparatus includes: a variable optical attenuation section configured to independently adjust, for each wavelength, attenuation of light of a plurality of wavelengths and adjust output optical power of wavelength multiplexed light that is output to an optical transmission line by adjustment of the attenuation; and a control section configured to stop, in accordance with control in which a wavelength included in the wavelength multiplexed light in a first wavelength band is wavelength-shifted to a second wavelength band that is different from the first wavelength band, adjustment of attenuation performed on the first wavelength band by the variable optical attenuation section.. .
Fujitsu Limited


03/31/16
20160094303 

Method and resource mapping and code division multiplexing


The present disclosure discloses a method and an apparatus for resource mapping and code division multiplexing. In the present disclosure, each cell selects a mapping scheme among at least two mapping schemes to implement resource mapping, which effectively reduces interference imposed on reference signal symbols of users at the edge of a cell; vector switching is performed for an orthogonal matrix to obtain multiple different codeword sequences and implement codeword design, so that a problem that the output power of reference signal symbols is unbalanced can be effectively alleviated..
Huawei Technologies Co., Ltd.


03/31/16
20160094007 

Optical amplification apparatus, optical transmission apparatus, and optical transmission system


An optical amplification apparatus that amplifies input wavelength-division multiplexed light includes a pump light source that outputs pump light, and an optical amplifier that amplifies the wavelength-division multiplexed light in response to a power level of the pump light. The number of wavelengths multiplexed in the wavelength-division multiplexed light is equal to or less than the maximum available number of wavelengths input to the optical amplification apparatus.
Fujitsu Limited


03/31/16
20160093273 

Dynamic vision sensor with shared pixels and time division multiplexing for higher spatial resolution and better linear separable data


A dynamic vision sensor (dvs) where pixel pitch is reduced to increase spatial resolution. The dvs includes shared pixels that employ time division multiplexing (tdm) for higher spatial resolution and better linear separation of pixel data.
Samsung Electronics Co., Ltd.


03/31/16
20160093260 

Display device and associated method


A display device comprises a display panel. The display panel comprises a plurality of gate lines, a plurality of data lines, a plurality of sub-pixels, a gate driver connected to the gate lines, and a data driver connected to the data lines.
Innolux Corporation


03/31/16
20160092399 

Folded butterfly module, pipelined fft processor using the same, and control the same


A folded butterfly module performs a radix-22 butterfly operation, and includes: a buffer operable to store first and second to-be-stored data and output first and second stored data; a first multiplexer operable to output one of the second stored data and input data as first selection data; a butterfly operator performing a radix-2 butterfly operation on the first stored data and the first selection data to generate operation data and the second to-be-stored data; a second multiplexer operable to output one of the input data and the operation data as the first to-be-stored data; a third multiplexer operable to output one of the operation data and the second stored data as second selection data; and a multiplier generating output data that equal a product of the second selection data and twiddle data.. .
National Chiao Tung University


03/31/16
20160091560 

Integrated circuit and testing


An integrated circuit includes a first circuit and a test circuit. The test circuit is configured to test the timing of a first circuit.
Taiwan Semiconductor Manufacturing Company, Ltd.


03/31/16
20160089669 

Apparatus for multiplex extraction of biological samples and in-transit preparation of the same


The invention relates to a device for the rapid simultaneous collection, and, optionally, treatment or standardization, of multiple aliquots of a liquid biological sample such as blood from a single source drop or sample portion, the device comprising device comprising a cover, a spreading layer comprising a macroporous membrane adjacent to the cover, where the spreading layer comprises a transport portion and at least one accumulation portion in fluid connection with the transport portion, and at least one collection portion in fluid connection with each accumulation portion.. .
Novilytic, Llc


03/31/16
20160089075 

Biofeedback sensors in a body area network


Technologies for the sensing of biofeedback signals of a user include a body area network (ban) system comprising one or more biofeedback sensors and one or more ban controllers. The biofeedback sensors are configured to sense ban signals, which may include biofeedback signals and body-coupled communication (bcc) signals.

03/24/16
20160088653 

Optimization of signalling of absolute grants for uplink transmission using time-division multiplexing


It is provided a method including setting a grant for an uplink transmission to zero if a received absolute grant is not intended for an apparatus performing the method.. .
Nokia Solutions And Networks Oy


03/24/16
20160088643 

Method for device-to-device subscriber to dynamically multiplex cellular subscriber resources, and base station


A method for a device-to-device user dynamically multiplexing resources of a cellular user, which is applied to a base station side includes: when determining that the device-to-device user interferes with other cellular users within a service scope, allocating resources that meet quality of service requirements of the device-to-device user and do not cause interference to other cellular users to the device-to-device user, and instructing the device-to-device user to use the resources newly allocated.. .
Zte Corporation


03/24/16
20160088524 

Method and controlling a handover between utra r6 cells and r7 cells


A method and apparatus for controlling an optimization of handover procedures between universal terrestrial radio access (utra) release 6 (r6) cells and utra release 7 (r7) cells are disclosed. When a wireless transmit/receive unit (wtru) is moving between an r6 cell and an r7 cell, or between r7 cells, a handover is initiated from a source node-b to a target node-b.
Interdigital Technology Corporation


03/24/16
20160088447 

Hopping master in wireless conference


A first radio has duplex communication with a second radio and a third radio, without using a base station by using a multiple-access protocol system. The first radio is configured to switch back and forth between being a master radio and a slave radio in the multiple-access protocol system.
Dominant Technologies, Llc


03/24/16
20160088408 

Ear to ear communication using wireless low energy transport


Disclosed in some examples are systems, methods, and machine readable media which allows for hearing instruments to be in a piconet with each other while being connectable as a slave to another device such as a smart phone when it comes within range. In some examples to accomplish this, one or both of the connected hearing aids may send connectable advertisements while connected with each other in the piconet by time multiplexing the advertisements between connection events..
Starkey Laboratories, Inc.


03/24/16
20160088321 

Transmission apparatus, transmission method, reproduction apparatus, reproduction method and reception apparatus


A transmission stream, in which first transmission packets that are multilayer-configuration packets each having a multiplexed transport packet in an upper layer are continuously arranged is transmitted. In the transmission stream, the specific first transmission packets each including the multiplexed transport packet including data in which a first byte of an access unit of a random access point starts and having a header in which identification information is inserted are arranged at a predetermined interval.

03/24/16
20160088320 

Signal processing apparatus, signal processing method, program, and signal transmission system


The present technology relates to a signal processing apparatus, a signal processing method, a program, and a signal transmission system realizing an sdi (serial digital interface) capable of effectively transmitting an audio stream together with video data, for example, of which the frame rate is 100 hz or 120 hz. An audio multiplexing unit multiplexes an audio sample into a data area of horizontal lines of n2 (here, 2≦n2≦n1) rows after a first horizontal line in which the audio sample is generated, which is a predetermined data area arranged within a horizontal blanking area disposed for each horizontal line of video data in a data stream defined in a format of an sdi used for transmitting the video data, in a case where an audio is sampled at an interval of once or less for horizontal lines of n1 (here, n1≧2) rows of the video data of a predetermined frame rate.
Sony Corporation


03/24/16
20160088271 

Display systems and methods employing wavelength multiplexing of colors


An immersive display system is disclosed that includes screens configured to mitigate reduction in contrast ratio due at least in part to peripheral light incident on the screens. The immersive display system includes at least two screens and at least two projector systems.
Barco, Inc.


03/24/16
20160088270 

Display systems and methods employing time multiplexing of projection screens and projectors


An immersive display system is disclosed that includes screens configured to mitigate reduction in contrast ratio due at least in part to peripheral light incident on the screens. The immersive display system includes at least two screens and at least two projector systems.
Barco, Inc.


03/24/16
20160088205 

Multiplexed fourier ptychography imaging systems and methods


Certain embodiments pertain to multiplexed fourier ptychographic imaging systems and methods. In one example, the multiplexed fourier ptychographic imaging system includes an led array configured to illuminate a sequence of led patterns for illuminating a sample being imaged.
California Institute Of Technology


03/24/16
20160087914 

Circuits and systems for multiplexed isolator communication


An embodiment of a communication circuit for communicating data across an isolation barrier may include an input circuit to receive a plurality of input data channels, a framing circuit to frame an input data packet from the plurality of input data channels, an encoding circuit to select a characteristic of a data symbol to represent a plurality of bits of the framed input data packet, and a driver circuit to drive one or more data symbols representing the framed input data packet onto an isolator configured to communicate data across the isolation barrier. The encoding circuit may select an amplitude, frequency or phase of the data symbol from a plurality of predetermined amplitudes, frequencies or phases, to encode the plurality of bits as the selected amplitude, frequency or phase.
Analog Devices, Inc.


03/24/16
20160087830 

Multi-mode orthogonal frequency division multiplexing transmitter for highly-spectrally-efficient communications


A transmitter may comprise a symbol mapper circuit and operate in at least two modes. In a first mode, the number of symbols output by the mapper circuit per orthogonal frequency division multiplexing (ofdm) symbol transmitted by said transmitter may be greater than the number of data-carrying subcarriers used to transmit the ofdm symbol.
Magnacom Ltd.


03/24/16
20160087818 

Partial response equalizer and related method


A multi-phase partial response receiver supports various incoming data rates by sampling prdfe output values at a selected one of at least two clock phases. The receiver includes a calibration circuit that performs a timing analysis of critical data paths in the circuit, and this analysis is then used to select the particular clock phase used to latch the output values.
Rambus Inc.


03/24/16
20160087780 

Circuits and systems for multiplexed isolator communication


An embodiment of a communication system for transmitting and receiving data across an isolation barrier may include a communication circuit connected to an isolator at a first side of the isolation barrier, the communication circuit having a transmit circuit to drive a first data signal onto the isolator based on input data received by the communication circuit, a receive circuit to receive a second data signal from the isolator and produce output data based on the received second data signal, and a control circuit to control the transmit and receive circuits to provide time division multiplexing of the first and second data signals. The control circuit may transition to a transmit state in which the transmit circuit drives the first data signal onto the isolator from a receive state in which the receive circuit receives the second data signal from the isolator in response to detecting a condition as a function of receiving a predetermined number of bits of the second data signal and passage of a predetermined time period..
Analog Devices, Inc.


03/24/16
20160087775 

Acknowledgment mechanisms for ofdma operation


In an example of wireless communications based on orthogonal frequency-division multiple access (ofdma), an access point may send a downlink frame to multiple stations. In response, some or all of the stations may transmit their respective uplink frames simultaneously after a predetermined time period.
Newracom, Inc.


03/24/16
20160087767 

Originator and recipient based transmissions in wireless communications


Methods and systems are described for determining a plurality of transmission levels for, e.g., a plurality of time-frequency channels and/or a plurality of tones. The transmission levels may be determined by a first node based on, for example, a received transmission from a second node.
Comcast Cable Communications, Llc


03/24/16
20160087766 

Short training field for wifi


A method for generating an orthogonal frequency division multiplex (ofdm) data unit conforming to a first communication protocol for transmission via a communication channel is described. A first field is generated that conforms to a second communication protocol and has an integer number of ofdm symbols ln having a periodicity lp.
Marvell World Trade Ltd.


03/24/16
20160087751 

Linear dispersion polarization-time codes and equalization in polarization multiplexed coherent optical system


A method of optical communication comprising encoding four modulated symbols to generate four encoded symbols in two orthogonal polarizations and transmitting the four encoded symbols in two successive time slots. An optical communication apparatus comprising a processor configured to receive two sequences of digital symbols in a plurality of time slots, wherein the two sequences correspond to two components of two orthogonal polarizations, wherein one digital symbol per polarization is received in each of the plurality of time slots, divide each of the two sequences into a plurality of groups using a modulo operation of time, wherein each group comprises two digital symbols received in two consecutive time slots, and adaptively equalize the four digital symbols of the two consecutive time slots using a 4×4 matrix to generate four modulated symbols, wherein the 4×4 matrix comprises 16 tap-vectors..
Futurewei Technologies, Inc.


03/24/16
20160087750 

Method and transmitting orthogonal frequency division multiplexing (ofdm) signal in optical network


A method for transmitting an orthogonal frequency division multiplexing (ofdm) signal in an optical network and apparatus therefor are provided. The method includes: converting a media access control (mac) frame into an ofdm frame that contains a physical (phy) level preamble, using the mac frame which is transmitted from a mac layer in a passive optical network (pon) to a phy layer in an ofdm-pon; and transmitting the generated ofdm frame..
Electronics And Telecommunications Research Institute


03/24/16
20160087749 

Method and communication control device for establishing a communication channel in a communication network


The invention relates to a method for establishing a communication channel, preferably an embedded control channel, between a central network node and at least one network unit to be integrated in a communication network including the central network node and an arbitrary but limited number of network units. The central network node is adapted to create and output a wavelength-division multiplex (wdm) downstream signal including downstream channel signals to be transmitted to the network units and to receive a wdm upstream signal including upstream channel signals created by the network units..
Adva Optical Networking Se


03/24/16
20160087747 

Dense wavelength division multiplexing and single-wavelength transmission systems


A data transceiver module, data transmission system incorporating same and methods related thereto, which include optical transmitters configured to receive an information bearing signal and generate an optical signal having a wavelength different from wavelengths generated by others of the plurality of optical transmitters; optical receivers configured to receive an optical signal having a wavelength matching one of the plurality of optical transmitters and convert it to an information bearing electrical signal; and a four level pulse-amplitude-modulator (pam4) chip generating a pulse-amplitude-modulated information bearing signal input to at least one optical transmitter of the plurality of optical transmitters and receiving the information bearing from at least one optical receiver of the plurality of optical receivers and converting it to an information signal using pulse amplitude demodulation. Alternative embodiments include coherent-detection-based optical coherent receiver and coherent transmitter..
Neophotonics Corporation


03/24/16
20160087745 

Supporting an add-on remote unit (ru) in an optical fiber-based distributed antenna system (das) over an existing optical fiber communications medium using wavelength division multiplexing (wdm)


Embodiments disclosed in the detailed description include supporting an add-on remote unit(s) (ru) in an optical fiber-based distributed antenna system (das) over existing optical fiber communication medium using wavelength division multiplexing (wdm). An existing das comprises at least one existing head end equipment (hee) communicatively coupled to a plurality of existing rus through an optical fiber communication medium.
Corning Optical Communications Wireless Ltd


03/24/16
20160087740 

Half-cycled orthogonal frequency divisional multiplexing transmission and reception


An optical transmitter transmits an orthogonal frequency division multiplexing symbol in which only one-half of available subcarriers are modulated with data and the remaining subcarriers are suppressed by not modulating with data. The transmission is of duration equal to half the symbol period of the ofdm symbol, resulting in a half-cycle transmission.
Zte (usa) Inc.


03/24/16
20160087695 

Method and apparatus of beam training for mimo operation and multiple antenna beamforming operation


The disclosed invention provides an efficient method for mimo beam training for multiple antennas to enable spatial multiplexing mimo operation and spatial combining in a wireless network. The invention discloses a simple and efficient beam-training algorithm and protocol for mimo operation that operates in high snr condition for reliable mimo operation.
Mediatek Singapore Pte. Ltd.






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