|| List of recent Multiplexing-related patents
|Methods and apparatus to measure exposure to streaming media|
Methods and apparatus to measure exposure to streaming media are described. An example method includes demultiplexing a closed captioning transport stream from a media stream, the media stream intercepted intermediate a media device and a display.
|Methods and apparatus to measure exposure to streaming media|
Methods and apparatus to measure exposure to streaming media are disclosed herein. An example method includes demultiplexing a closed captioning transport stream from a media stream, the media stream intercepted intermediate a media device and a display.
|Network fragmentation measurement in an optical wavelength division multiplexing (wdm) network|
A method implemented in a network apparatus used in a wavelength division multiplexing (wdm) optical network is disclosed. The method includes (a) finding k-shortest routes between each node pair (s, d), where s, d∈v and .
|Virtual networking embedding procedure in an optical wavelength division multiplexing (wdm) network|
Consecutive spectrum slots at m lowest wavelengths in the bit map of selected route k, and (f) determining fragmentation factor fkm after provisioning a channel at each wavelength m on selected route k, where 1≦m≦m. Other apparatuses, systems, and methods also are disclosed..
|Low latency multiplexing for optical transport networks|
Techniques for multiplexing and demultiplexing signals for optical transport networks are presented. A network component comprises a multiplexer component that multiplexes a plurality of signals having a first signal format to produce a multiplexed signal in accordance with a second signal format, while maintaining error correction code (ecc) of such signals and without decoding such signals and associated ecc.
|Method, apparatus, and system for implementing private network traversal|
A method, an apparatus, and a system for implementing private network traversal are disclosed, where a message exchanged between a turn server in a public network and a communications terminal in a local area network is transmitted through a pre-established websocket connection. The method includes: receiving, by the turn server, a resource allocate request sent by the communications terminal, allocating a relay address and a resource port for the communications terminal; receiving a turn data packet sent by the communications terminal, where the turn data packet includes communication data and a multiplexing identifier, and sending the communication data to the remote node through the communications channel identified by the multiplexing identifier, thereby solving a problem in an existing turn technology that in case that a firewall only opening an http port is deployed, communication between a communications terminal in a local area network and a remote node cannot be implemented..
|Simulcasting mimo communication system|
A wireless multiple-input multiple output (mimo) communication system includes signaling simulcasting. Base stations include a plurality of transmit antennas and terminals include a plurality of receive antennas to form mimo channels.
|Method and apparatus for transmitting reference signal|
The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for transmitting an rs (reference signal) from a transmission end. The present invention relates to an rs transmission method and an apparatus therefore, comprising the steps of: confirming rs resources which are defined according to each layer; and transmitting the precoded rs for the layers to a receiving end through a multiple antenna, wherein the rs resource includes a 1st index for indicating an rs resource pattern group in which the precoded rs is mapped within a resource block and a 2nd index for indicating a code resource for multiplexing the precoded rss within the rs resource pattern group..
|Systems and methods for digital processing of satellite communications data|
A digital payload for processing a sub-band spectrum received on an uplink beam at a communications satellite includes a digital channelizer, a digital switch matrix and a digital combiner. The digital channelizer divides the sub-band spectrum into a plurality of frequency slices that can be routed by the digital switch matrix to any of a number of receiving ports.
|Digital multiplexing readout for sparse signals on imaging arrays|
A method for providing an image from a device with a plurality of sensors and a plurality of time to digital converters (tdc) is provided. Data signals are generated by some of the plurality of sensors, wherein each sensor of the plurality of sensors provides output in parallel to more than one tdc of the plurality of tdcs and wherein each tdc of the plurality of tdcs receives in parallel input from more than one sensor of the plurality of sensors and where a binary matrix indicates which sensors are connected to which tdc.
|Buffer for managing data samples in a read channel|
The disclosure is directed to a system for managing data samples utilizing a time division multiplexing controller to allocate time slots for accessing a sample memory according to one or more modes of operation. The time division multiplexing controller is configured to allocate slots for concurrent access by a sample controller, a plurality of detectors, and a noise predictive calibrator when a normal mode is enabled.
|Group communications multiplexing system|
A computerized human communication arbitrating and distributing system, including a controller digital computer and a plurality of participator digital computers, each of the participator computers including an input device for receiving human-input information from a human user and an output device for presenting information to the user. A connection, such as internet, links the controller computer with each of the participator computers.
|Polarization multiplexed short distance connection|
A network device may include a polarizing multiplexing transmitter, a polarization maintaining (pm) fiber, and a polarizing demultiplexing receiver. The polarizing multiplexing transmitter may generate an optical signal, split the optical signal into a first and a second split optical signal, and modulate the split optical signals based on electrical signals to form first and second modulated optical signals.
|Transport of multiple asynchronous data streams using higher order modulation|
Aspects of the invention provide transmitters and receivers for managing multiple optical signals. High order modulation, such as phase and/or amplitude modulation, is used to achieve multiple bits per symbol by transporting multiple asynchronous data streams in an optical transport system.
|Signal processing in a cooperative ofdm communication system|
A receiver for processing frequency division multiplexing (fdm) signals, the receiver includes a processor configured to: convert the fdm signals from at least two transmitters into frequency domain signals; determine a first component of the frequency domain signals, the first component of the frequency domain signals comprising a channel noise and a composite residual inter-carrier interference (ici) contributed by the at least two transmitters; calculate a set of correlation values corresponding to the first component of the frequency domain signals; and process the first component of the frequency domain signals based on the set of correlation values.. .
|Converter/multiplexer for serial bus|
This disclosure relates to a converter/multiplexer and associated method of use therefor or converting and multiplexing parallel inputs, a modem, a gps, or even modem information into a single multimaster broadcast serial bus standard for connecting electronic control units, and more specifically, to a multiplexer for transforming analog, digital, frequency, gps, or modem inputs into a can bus data transmittal over lan and/or pan and interrelation with a similarly equipped receiving module. Further, the converter/multiplexer is used alone or in a group as part of a larger system for multiplexing and demultiplexing signals for serial bus processing and also for guidance when the converters are cabled by operators using stored configurations..
|Routing device and method|
Disclosed herein are provided a routing device and method for configuring a low power wireless mesh network (lpwmn) including a channel hopping time multiplexing wireless link. The routing device includes a control unit and a communication unit.
|Multi-user mimo via active scattering platforms|
Aircrafts flying near earth or naval vessels are used as active scattering platforms in a multipath communications channel in mimo communications systems. These man-made platforms in a communications channel, with techniques of beam forming and wavefront multiplexing in both transmitters at source and receivers at destinations enhance the ability to coherently combine the power of the communication signals, and improve the signal-to-noise ratio in addition to the mimo advantage of multiple times of channel capacity over a finite bandwidth via frequency reuse.
|Multiplexing channels by a medium access 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.
|Method for frequency division duplex communications|
The high quality pcs communications are enabled in environments where adjacent pcs service bands operate with out-of-band harmonics that would otherwise interfere with the system's operation. The highly bandwidth-efficient communications method combines a form of time division duplex (tdd), frequency division duplex (fdd), time division multiple access (tdma), orthogonal frequency division multiplexing (ofdm), spatial diversity, and polarization diversity in various unique combinations.
|Address generator, address generation method, and encapsulation-decapsulation device|
An address generator includes a storage device in which one or more second-protocol-family address prefixes are stored, the one or more second-protocol-family address prefixes each corresponding to a corresponding combination of at least a multiplexing identifier and a first-protocol-family address, and a controller configured to read, from the storage device, the second-protocol-family address prefix corresponding to a combination of at least the multiplexing identifier and the first-protocol-family address that is contained in a data block to be transferred via a backbone network to a destination network which uses the first protocol family, the read second-protocol-family address prefix serving as an address prefix for a network that is overlaid with the destination network, and configured to generate a second-protocol-family address containing the first-protocol-family address, the multiplexing identifier, and the read second-protocol-family address prefix, the generated second-protocol-family address serving as a destination address within the backbone network.. .
|Switching for a mimo-ofdm based flexible rate intra-data center network|
A communication system enabling a switching procedure for a multiple-input multiple-output orthogonal frequency division multiplexing (mimo ofdm) based flexible rate intra-data center network dcn, includes a mimo ofdm dcn with optical burst switching obs capability, an optical burst switching obs procedure for influencing the mimo ofdm dcn, and a centralized control configuration coupled to the mimo ofdm dcn and enabling a software defined network sdn configuration in the communication system.. .
|Athermal optical filter with active tuning and simplified control|
Embodiments of the invention describe systems, apparatuses and methods for providing athermicity and a tunable spectral response for optical filters. Finite impulse response (fir) filters are commonly implemented in photonic integrated circuits (pics) to make devices such as wavelength division multiplexing (wdm) devices, asymmetric mach-zehnder interferometers (amzis) and array waveguide gratings (awgs).
|Method and arrangement in wireless communications system|
The present invention relates to a receiving node, and to a related method of adjusting a frequency domain channel estimate in a receiving node of a wireless communication system using orthogonal frequency division multiplexing. The method comprises estimating (210) a phase rotation of the frequency domain channel estimate, and compensating (220) for the estimated phase rotation in the frequency domain channel estimate.
|Ofdm transmission and reception for non-ofdm signals|
Methods and apparatuses for orthogonal frequency-division multiplexing (ofdm) communication of non-ofdm radio signals are disclosed. The non-ofdm radio signals are force-modulated into ofdm signals.
|Method and system for providing high definition (hd) broadcasting service and ultra high definition (uhd) broadcasting service|
A method of transmitting a high definition (hd) image and an ultra high definition (uhd) image, the method including obtaining a first hd image by down-scaling an original uhd image, obtaining at least one of a second hd image and a half-resolution uhd image by down-scaling the original uhd image, encoding the first hd image, encoding at least one of the second hd image and the half-resolution uhd image, generating a first transmission stream by multiplexing and synchronizing the encoded first hd image, generating a second transmission stream by multiplexing and synchronizing at least one of the encoded second hd image and the encoded half-resolution uhd image, transmitting the first transmission stream via a first transmission channel, and transmitting the second transmission stream via a second transmission channel differing from the first transmission channel is provided.. .
|Method and apparatus for algorithm on flexible square-qam coherent detection|
In software defined elastic optical networks, modulation format and constellation size may be flexibly modified. As a result, digital signal processing (dsp) algorithm should be compatible with different modulation schemes or readily reconfigurable at the optical coherent receiver.
|Multiplexing multiple serial interfaces|
An integrated circuit with two operating modes is described. During a first operating mode, a de-multiplexer selectively couples information received via a common set of pads to first control logic, which decodes the information based on a first serial-interface technique.
|Communication system, transmitter apparatus and receiver apparatus|
A transmitter of a communication system includes a spectrum dividing section which divides a transmission signal into a plurality of sub-spectra at a first sampling speed f1 and combines one or more low-speed intermediate composite signals from the divided sub-spectra, and a multiplexing section which multiplexes the intermediate composite signals at a second sampling speed f2 faster than the first sampling speed f1 (f2>f1) and distributes to a broadband. A receiver includes a demultiplexing section which extracts one or more low-speed intermediate composite signals from a reception signal at the second sampling speed f2, and a spectrum combining section which combines the intermediate composite signals at the first sampling speed f1 and extracts the sub-spectra to re-combines the transmission signal..
|Demultiplexing apparatus, multiplexing apparatus, and multi-channel transmission and reception method using the same|
A demultiplexing apparatus, a multiplexing apparatus, and a multi-channel transmission and reception method using the same are provided. The demultiplexing apparatus includes a broadcasting data reception unit for separating a broadcasting data stream into n input packets, an output packet generation unit for generating (n+1) output packets by connecting a pre-header, including a field for multi-channel transmission, with each of the n input packets, and a packet distribution unit for distributing the (n+1) output packets over at least two channels.
|In-device coexistence of multiple wireless communication technologies|
In a method of operating a device configured to communicate according to at least a first communication protocol and a second communication protocol, a time division multiplexing (tdm) pattern is obtained. The tdm pattern is defined for communication according to the first communication protocol is obtained.
|Method and apparatus for generating a dedicated reference signal|
Orthogonal frequency division multiplexing (ofdm) symbols in a time domain and one subcarrier in a frequency domain.. .
|Extending range and delay spread in wifi bands|
Certain aspects of the present disclosure relate to methods and apparatus for extending range and delay spread in 2.4 and 5 ghz bands, and potentially frequency multiplexing users. An apparatus is provided for wireless communications.
|Display apparatus, reception apparatus, display method, television receiver, display system, program, and storage medium|
A television set (10) capable of receiving a video content and an additional content including information associated with the video content includes a demultiplexing unit (12) configured to display the video content on a display unit (16) and the additional content on a tablet terminal (20).. .
|Sensor and method for detecting a number of objects|
A sensor device for detecting a number of objects, has a number of electrode configurations forming a sensor surface, each electrode configuration having a number of measurement electrodes and each electrode configuration being associated with at least one transmitter electrode, and an evaluation device coupled to the measurement electrodes and the transmitter electrodes, which is adapted for using a time multiplexing method for applying an alternating signal to one of the transmitter electrodes, and to apply a predetermined constant electrical potential to the remaining transmitter electrodes, and tapping an electrical signal indicating the position of the object relative to the sensor surface at the measurement electrodes associated with the transmitter electrode having the electrical alternating signal applied.. .
|Method and apparatus for optimization of wireless multipoint electromagnetic communication networks|
An apparatus is provided. The apparatus comprises: transceiver hardware that is capable of receiving data utilizing multiple simultaneously-received polarization diverse or spatial diverse channels and includes at least one receiver wireless element that is orthogonal frequency division multiplexing-capable and at least one transmitter wireless element; and circuitry capable of working in association with the transceiver hardware.
|External cavity laser and system for wave division multiplexing-passive optical network|
The embodiments of the present invention disclose an external cavity laser (ecl), relate to the field of wave division multiplexing-passive optical network (wdm-pon) technology, and effectively solve a problem of unstable output optical power of the ecl caused by polarization dependence. The ecl includes a gain medium, a filter, and a faraday rotator mirror (frm).
The discloser provides a multi-input and multi-output optical switch capable of switching over all wdm wavelengths. An optical switch according to one embodiment includes: an optical demultiplexing element (3) that demultiplexes an optical signal from at least one input port into individual wavelengths; a first optical deflection element (5), which deflects an incident optical signal, that deflects the wavelength-separated optical signal incoming from the optical demultiplexing element to change a traveling direction for each wavelength to a switch axis direction perpendicular to a wavelength dispersion axis direction; a second optical deflection element (8) that deflects the optical signal incoming from the first optical deflection element to change the traveling direction to the switch axis direction for output to at least one of the output ports; and an optical multiplexing element (10) that multiplexes the optical signal with the different wavelengths incoming from the second optical deflection element..
|Method and apparatus providing wave division multiplexing optical communication system with active carrier hopping|
A wave division multiplexing (wdm) system is disclosed which accommodates shifts in the resonant frequency of optical modulators by using at least two carriers per optical communications channel and at least two resonant modulator circuits respectively associated with the carriers within each optical modulator. A first resonant modulator circuit resonates with a first carrier and a second resonates with a second carrier when there is a shift in resonance frequency of the at least two resonant optical modulator circuits.
|Video processing system for demultiplexing received compressed and non-compressed video signals and transmitting demultiplexed signals|
The present invention is intended to permit both real-time display of a picture represented by a non-compressed video signal on a television and display of a picture represented by a compressed video signal at any desired time by simultaneously transmitting the compressed video signal and non-compressed video signal via one interface. An stb packetizes a compressed video signal, and multiplexes the compressed video signal and a blanking signal combined with a non-compressed video signal.
|Quality control scheme for multiple-input multiple-output (mimo) orthogonal frequency division multiplexing (ofdm) systems|
A method and apparatus for optimizing the system capacity of an orthogonal frequency division multiplexing (ofdm) system that uses with multiple-input multiple-output (mimo) antennas. In a receiver, a target quality of service (qos) metric and reference data rate are set.
|Method and apparatus for transmitting reference signal in multi-antenna system|
A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (ofdm) symbol in a subframe containing a plurality of ofdm symbols; allocating a channel quality indication reference signal (cqi rs) capable of measuring a channel state for each of a plurality of antennas to the selected at least one ofdm symbol; and transmitting the cqi rs, wherein the cqi rs is allocated to an ofdm symbol which does not overlap with an ofdm symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated..
|Apparatus for calculating weights associated with a received signal and applying the weights to transmit data|
An apparatus for modulating transmit data and adding a cyclic prefix to the transmit data is provided. The apparatus comprises: transceiver hardware that is capable of receiving receive data utilizing multiple input channels and includes at least one first wireless element that is orthogonal frequency division multiplexing-capable, and at least one second wireless element; and circuitry capable of working in association with the transceiver hardware.
|Method for transmitting uplink signals from a user equipment to a base station in a wireless communication system and method for the same|
A method for transmitting uplink signals from a user equipment to a base station in a time division multiplexing wireless communication system is disclosed. The method comprises the steps of transmitting a first uplink signal on an uplink subframe or a special subframe that precedes the uplink subframe, by preceding a first timing advance value at a reference time; and transmitting a second uplink signal on the uplink subframe by preceding a second timing advance value at the reference time, wherein the first timing advance value is greater than the second timing advance value, and the first uplink signal is transmitted for an uplink pilot time slot (uppts) period of the special subframe if a difference value between the first timing advance value and the second timing advance value is greater than a preset value..
|Methods and arrangements for transmitting and decoding reference signals|
In some embodiments, a method is provided in a radio network node for transmitting a reference signal over an antenna port, wherein the reference signal is transmitted in a code division multiplexing, cdm, group. The cdm group comprises at least two cdm subgroups, each cdm subgroup being transmitted on a different subcarrier.
|Methods for energy-efficient unicast and multicast transmission in a wireless communication system|
A method for time multiplexing subframes on a serving cell to a user equipment, wherein one set of subframes operate with the legacy lte transmission format and one set of subframes operate with an evolved transmission format comprising reduced density crs transmission without a pdcch control region.. .
|Networking device port multiplexing|
A system includes a first networking devices, a multiplexer, a second networking device, and a third networking device. The first networking device includes a pair of ports operational up to a first throughput.
|Systems and methods for improving bandwidth of wireless networks|
Systems and methods for seismic data acquisition with location aware network nodes. Based on location information of the nodes of the network, a multiplexing signature may be provided for the node.
|Dynamic aperture holographic multiplexing|
Systems and methods for dynamic aperture holographic multiplexing are disclosed. One example process may include recording a set of holograms in a recording medium by varying both the reference beam angular aperture and the signal beam angular aperture.
|Systems using eye mounted displays|
A display device is mounted on and/or inside the eye. The eye mounted display contains multiple sub-displays, each of which projects light to different retinal positions within a portion of the retina corresponding to the sub-display.
|Video multiplexing apparatus, video multiplexing method, multiplexed video decoding apparatus, and multiplexed video decoding method|
A video multiplexing apparatus includes: a control unit which determines first decode/display time information and second decode/display time information for each picture in video data and for each encoding unit of first media data; a video packet generating unit which appends the first and second decode/display time information for the picture to encoded data of the video data; and a media packet generating unit which appends the first and second decode/display time information for the encoding unit to encoded data of the first media data. The first decode/display time information is used when the decoding unit of the video data is a picture, and the second decode/display time information is used when the decoding unit is a sub-picture.
|Scan test circuitry comprising at least one scan chain and associated reset multiplexing circuitry|
An integrated circuit comprises scan test circuitry and additional circuitry subject to testing utilizing the scan test circuitry. The scan test circuitry comprises at least one scan chain having a plurality of scan cells.
|Encoding device and method, decoding device and method, and program|
A qmf sub-band power calculation unit calculates power of a qmf sub-band signal of a high frequency qmf sub-band among a plurality of the qmf sub-bands constituting an input signal. A high frequency sub-band power calculation unit carries out an operation to weight more a qmf sub-band power having larger power as for a sub-band including a number of the high frequency qmf sub-bands to calculate high frequency sub-band power of the sub-band.
|Touch-screen terminal and method and system for near-field communication|
A touch-screen terminal, method and system for near-field communication are provided. The touch-screen terminal includes a touch sensor, the touch sensor includes multiple driver electrodes and inductive electrodes disposed on a substrate to form capacitor structures.
|Orthogonal frequency division multiple access-passive optical network comprising optical network unit and optical line terminal|
An orthogonal frequency division multiple access-passive optical network including a plurality of optical network units each configured to generate orthogonal frequency division multiplexed signals, which are allocated thereto, based on a central frequency for frequency division multiplexing that is allocated in advance, and to use the generated signals in upstream transmission.. .
|Channel estimation in optical communication based on orthogonal frequency division multiplexing|
Techniques for optical communications using optical orthogonal frequency division multiplexing (ofdm) include operating a signal transmitter to modulate laser light to produce modulated light that carries, in optical domain, ofdm subcarriers for carrying communication information, without a frequency guard band between the ofdm subcarriers, and pilot subcarriers for channel estimation at a signal receiver, each pilot subcarrier being free of communication information, and controlling optical power of the pilot subcarriers to vary with optical frequencies of the pilot subcarriers so that optical power of a pilot subcarrier at a high optical frequency is different from optical power of another pilot subcarrier at a low optical frequency.. .
|Optical polarization demultiplexing for a coherent-detection scheme|
An optical receiver having a plurality of optical iq modulators arranged in a butterfly configuration and configured to operate as an optical polarization de-multiplexer. The optical receiver further has (i) an opto-electric circuit configured to apply optical homodyne detection to an optical input signal received by the optical receiver and (ii) a controller configured to generate one or more control signals for driving the iq modulators of the plurality based on one or more electrical feedback signals received from the opto-electric circuit..
|Mode multiplexing optical communication system|
An optical communication system is disclosed. The optical communication system comprises an optical transmitter and a substantially circular multi-mode optical fiber.
A system includes a transmitter to multiplex a plurality of modulated optical signals and an unmodulated optical signal and to transmit the plurality of modulated optical signals and the unmodulated optical signal along a transmission path. The system also includes a receiver to de-multiplex each of the plurality of modulated optical signals and the unmodulated optical signal and to demodulate each of the plurality of modulated optical signals with the unmodulated optical signal to coherently detect a modulating signal from each of the plurality of modulated optical signals..