Class / Patent application number | Description | Number of patent applications / Date published |
370536000 | Demultiplexing single signal into plural parallel channels (e.g., parallel transmission for increasing transmission speed) | 14 |
20090196313 | HIGH-DATA-RATE COMMUNICATION LINK USING MULTIPLE LOWER RATE MODEMS - A method for communication includes receiving a composite signal, which carries data at a first data rate and includes multiple sub-signals that are interleaved in a time domain and are separated by boundary indicators. The received composite signal is demultiplexed into the sub-signals by automatically detecting the boundary indicators between the sub-signals in the composite signal. The sub-signals are demodulated using multiple respective demodulators operating at second data rates that are lower than the first data rate so as to generate respective output data streams. The output data streams are combined so as to reconstruct the data at the first data rate. | 08-06-2009 |
20090268760 | ASYNCHRONOUS DATA PIPE FOR AUTOMATICALLY MANAGING ASYNCHRONOUS DATA TRANSFERS BETWEEN AN APPLICATION AND A BUS STRUCTURE - An asynchronous data pipe (ADP) automatically generates transactions necessary to complete asynchronous data transfer operations for an application over a bus structure. The ADP includes a register file which is programmed and initiated by the application. The register file includes the bus speed, transaction label, transaction code, destination node identifier, destination offset address, length of each data packet, packet counter, packet counter bump field, control field and a status field. During a data transfer operation, the ADP generates the transactions necessary to complete the operation over the appropriate range of addresses, using the information in the register file as a template. The ADP increments the value in the destination offset address field for each transaction according to the length of each data packet, unless the incrementing feature has been disabled and the transactions are to take place at a fixed address. The packet counter represents the number of transactions remaining to be generated. The packet counter value is decremented after each packet of data is transferred. The application can increment the packet counter value by writing to the packet counter bump field. A multiplexer is included within a system having multiple ADPs for multiplexing the information from the ADPs onto the bus structure. A demultiplexer is included within a system having multiple ADPs for routing information from the bus structure to the appropriate ADP. | 10-29-2009 |
20090323731 | LOW POWER DESERIALIZER AND DEMULTIPLEXING METHOD - A deserializer circuit and method convert a serial bit stream into a parallel bit stream according to a parallel grouping. The deserializer and method include alternatingly demultiplexing a serial data stream into first and second bit streams. The first and second bit streams are respectively serially shifted along a first plurality of shift registers and a second plurality of shift registers. A first portion of the first bit stream in the first plurality of shift registers is selected and a second portion of the second bit stream in the second plurality of shift registers is also selected. A parallel group of data in a parallel data stream is formed from the first and second portions. | 12-31-2009 |
20100158053 | DERATE MATCHING METHOD AND APPARATUS - Provided are a method and apparatus for derate matching a rate-matched data. The received data is deinterleaved and derate matched at a time, without using input buffers or constructing input buffers in parallel. Thus, a total process time necessary for the deinterleaving process and the derate matching process is reduced, and the use of memories such as the input buffers is minimized. | 06-24-2010 |
20120269208 | Method For Transferring Control Signals And Data Signals, Circuit Configuration For Transferring And Receiving - A method for transferring control signals and data signals, particularly in a motor vehicle. The control signals and the data signals are transferred by a physical medium. The control signals or the data signals are modulated prior to transferring. The modulated signals and the non-modulated signals are sent by the physical medium. | 10-25-2012 |
20120287949 | POLARIZATION MULTIPLEXED SIGNALING USING TIME SHIFTING IN RETURN-TO-ZERO FORMAT - Polarization multiplexing by encoding data using a return-to-zero format, and by interleaving the constituent orthogonal polarization components such that the data-carrying portion of the bit window from one orthogonal polarization component occupies the zero portion of the bit window for the other orthogonal polarization component. | 11-15-2012 |
20120327958 | METHOD FOR REMOTE DEVICE PROVISIONING AND INSERTION/EXTRACTION OF OVERHEAD/EOAM DATA FOR VARIOUS PROTOCOLS - A device demultiplexes an optical signal to produce a number of client streams for client devices. The device produces overhead packets for the client devices. The overhead packets are sent using a packet interface on the device. The overhead packets are sent to the client devices with a Virtual Local Area Network Identification (VLAN ID) portion of the overhead packets identify a client device of the client devices. | 12-27-2012 |
20130064255 | SYSTEM, APPARATUS AND METHOD FOR PROVIDING AGGREGATED NETWORK CONNECTIONS - The invention discloses a network aggregation system, apparatus and method for creating aggregated network connections to provide high availability and increased throughput where the plurality of network connections may possess diverse physical and logical characteristics. Increased throughput on the aggregated network connection equals the sum of the available throughput on the aggregated network connections. Aggregation is performed in a transparent fashion, independent of any physical or logical characteristics of the individual connections. Network connectivity over the aggregated connection is managed such that the loss or gain of connectivity in an individual connection among the aggregated group does not result in the loss of data from the data stream aggregation device. | 03-14-2013 |
20130301661 | Optical Signal Processing - An optical device, suitable for use either as a coherent receiver or analog-to-digital converter, of optical phase modulated signals borne on a carrier. The signal is four-wave mixed with a pump to generate a non-linear comb of a series of harmonic components of the signal. The modulation-free carrier is also combined with the pump to generate an equivalent linear comb matched in frequency to the components of the non-linear comb. The harmonic and modulation-free components are linearly combined so they interfere in a pairwise manner, and then the interfered frequency components are separated out in an optical wavelength division demultiplexer into a plurality of frequency-specific optical output channels. A plurality of photodetectors connected to respective ones of the optical output channels then converts the analog values in each channel to respective electronic signals which are then digitized using a processor into binary digits using a thresholding process. | 11-14-2013 |
20130315267 | OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMITTER, AND TRANSPONDER - A technique for reducing a necessary bandwidth of an optical receiver in an optical OFDM communication system is disclosed. Optical OFDM signals of different spectra are alternately transmitted for each OFDM symbol time, and; after this light is transmitted via an optical fiber, the light undergoes photoelectric conversion by a delay interferometer having a delay time equal to one symbol time and a balanced direct detection receiver and is received. | 11-28-2013 |
20130329754 | INTERFACE CIRCUIT, INTERFACE SYSTEM AND METHOD OF INTERFACING SIGNALS TRANSFERRED BETWEEN DEVICES - An interface circuit includes a deserializer and a frame detection circuit. The deserializer includes a serial input terminal for receiving a serial signal, the serial signal including a frame start code; and a plurality of first output terminals for outputting a plurality of parallel signals based on the received serial signal, one of the plurality of parallel signals being a frame signal including the frame start code. The frame detection circuit is configured to detect the frame signal at one of the output terminals of the plurality of first output terminals | 12-12-2013 |
20140092924 | CHANNEL CARRYING MULTIPLE DIGITAL SUBCARRIERS - An optical system includes a transmitter module and/or a receiver module. The transmitter module is configured to receive input data, map the input data to a set of subcarriers associated with an optical communication channel, independently apply spectral shaping to each of the subcarriers, generate input values based on the spectral shaping of each of the subcarriers, generate voltage signals based on the input values, modulate light based on the voltage signals to generate an output optical signal that includes the subcarriers, and output the output optical signal. The receiver module is configured to receive the output optical signal, convert the output optical signal to a set of voltage signals, generate digital samples based on the set of voltage signals, independently process the digital samples for each of the subcarriers, map the processed digital samples to produce output data, and output the output data. | 04-03-2014 |
20140169389 | OPTICAL RECEIVER MODULE USING WAVELENGTH DIVISION MULTIPLEXING TYPE - An optical receiver module includes a demultiplexer, an optical device including a right-angled mirror reflecting individual optical signals transmitted from the demultiplexer and a plurality of lenses receiving the reflected optical signals, and a plurality of photodetectors spaced apart from the plurality of lenses by a predetermined distance. The plurality of photodetectors converts the individual optical signals into electrical signals. The optical device and the demultiplexer are formed into a united structure. A distance between the lenses is equal to a distance between the photodetectors. | 06-19-2014 |
20150365220 | Apparatus and Method for Signal Aggregation in an Information Handling System - An information handling system includes a first subsystem having a first data module configured to provide a first signal, a second data module configured to provide a second signal, the first signal and the second signal are different types of signals, and a first aggregator unit coupled to the first data module and the second data module, and a second subsystem coupled to the first aggregator unit via a first aggregated signal line. The first aggregator unit receives the first signal from the first data module and the second signal from the second data module, aggregates, based upon a first aggregation algorithm, the first and second signals to create a first aggregated signal. The first aggregation algorithm aggregates the first signal and the second signal based on a specific type of each signal and provides the first aggregated signal to the second subsystem via the first aggregated signal line. | 12-17-2015 |