| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 370535000 | Multiplexing combined with demultiplexing | 34 |
| 20080225901 | Integrated services director (ISD) overall architecture - A video enable answering machine having many new features including customized video announcement messages, caller ID based video announcement messages, and time based video announcement messages. | 09-18-2008 |
| 20080253406 | TRANSPORT STREAM ENCAPSULATED TRICK MODES - A representation of an audiovisual asset is obtained and is processed to obtain at least one normal playback video elementary stream, (optionally, at least one audio elementary stream), and at least one trick mode video elementary stream. A transport stream is formed from the at least one normal playback video elementary stream, the at least one audio elementary stream (where present), and the at least one trick mode video elementary stream, with the at least one trick mode video elementary stream encapsulated in the transport stream. Streaming of the transport stream within a network is facilitated, for example, to a VOD server (for de-encapsulation), and in some approaches, to a set-top box. | 10-16-2008 |
| 20080279226 | Packet jitter mitigation for bursty transmission systems - Audio packets occupy spaces in a packet stream so as to reduce packet jitter in a receiver. | 11-13-2008 |
| 20090028192 | Generation, distribution and use of content metadata in a network - Methods and apparatus for utilizing information (e.g., metadata) relating to content in a multimedia distribution network. In one embodiment, the network comprises a hybrid fiber coax (HFC) cable network, and the information comprises metadata relating to the bitrate profile of deterministic content such as stored video. Content sources, or the network operator themselves, generate the metadata which may then be used by the operator to adjust or optimize the operation of the network; e.g., more efficiently allocate the program to a multiplex. Network apparatus adapted to implement the metadata functionality and related business methods are also disclosed. | 01-29-2009 |
| 20090041060 | Cross Link Multiplexer Bus - A cross link multiplexer bus comprising a plurality of cross link multiplexers and a plurality of interconnects. The plurality of cross link multiplexers has a destination port configured to receive a signal and an origin port configured to produce the signal. The plurality of interconnects has a set of interconnects coupled between a pair of adjacent cross link multiplexers. Preferably, the destination port is in a first cross link multiplexer, the origin port is in a second cross link multiplexer, and the first cross link multiplexer is configured to convey the signal toward the second cross link multiplexer in more than one direction. In an embodiment, the signal is capable of being represented as a series of characters, and a character is capable of being represented as a number of bits. Preferably, the plurality of cross link multiplexers includes a delay buffer to delay conveyance of a first bit so that it remains substantially synchronized with a second bit. Preferably, the set of interconnects includes a first interconnect to convey the first bit and a second interconnect to convey the second bit. The lengths of the first and the second interconnects are substantially equal. | 02-12-2009 |
| 20090046745 | APPARATUS FOR TRANSMITTING AND RECEIVING DATA WITH VARIOUS DATA CAPACITIES AT HIGH SPEED - There is provided an apparatus for transmitting and receiving data with various data capacity at high speed. The apparatus for transmitting and receiving data includes a client signal interface block converting client signals being received through media into a high-capacity electrical signal and selectively interfacing the converted high-capacity electrical signal through high-speed multi-channel; a framer receiving the selectively interfaced electrical signal from the client signal interface block and multiplexing and mapping the received electrical signal into 40 G multi-channel frame signals; and a SERDES & transceiver receiving the 40 G multi-channel frame signals from the framer, multiplexing the received multi-channel frame signals with the 40 G serial signals and transmitting the multiplexed 40 G serial signals. The apparatus for transmitting and receiving data may be useful to decrease its space and stably receive client signals by selectively interfacing various client signals with replacing the client signal interface blocks only, depending on the client signals to be supplied to the same transmitting/receiving apparatus. | 02-19-2009 |
| 20090154502 | SYSTEM(S), METHOD(S), AND APPARATUS FOR ACCURATE DETECTION OF THE END OF STREAM - A multimedia presentation system for presenting multimedia data comprising a demultiplexing unit and at least one processing unit. The demultiplexing unit demultiplexes a plurality of streams of data. At least one presentation processing unit provides the plurality of stream of data for presentation according to predetermined timing and detecting an end of any one of the plurality of streams of data. | 06-18-2009 |
| 20090245292 | CLOCK RECOVERY APPARATUS AND METHOD - A clock recovery apparatus allows that a clock of data is transparent before and after a relay. A clock recovery apparatus for performing clock recovery from a received signal, the clock recovery apparatus receiving a signal transmitted from a transmission apparatus converting a signal having a first signal-format with a first clock frequency into a signal having a second signal-format and transmitting the signal to the clock recovery apparatus in accordance with a second clock frequency, the clock recovery apparatus includes a signal processing section for converting the received signal into a signal having the first signal-format, and a clock recovery section for recovering the first clock frequency on a basis of a cycle produced by counting data of the signal obtained by the signal having the first signal-format processing section in a certain number. | 10-01-2009 |
| 20090323730 | DATA ALIGNMENT SYSTEM AND METHOD FOR DOUBLE DATA RATE INPUT DATA STREAM - Methods and apparatus are provided for a system for aligning data. The apparatus comprises a demultiplexing component adapted to bifurcate a DDR data stream into first and second SDR data streams, a sequence detection component coupled to the demultiplexing component and adapted to detect a pattern of sequential bit values in the first SDR data stream, and a data alignment component coupled to the demultiplexing component and to the sequence detection component, the data alignment component adapted to place the second SDR data stream in alignment with the pattern of sequential bit values in the first SDR data stream. | 12-31-2009 |
| 20100166024 | DATA TRANSMITTING APPARATUS AND DATA RECEIVING APPARATUS - This invention relates to a data transmitting apparatus and a data receiving apparatus, which multiplexes and transmits HD-SDI signals, and which receives the multiplexed and transmitted HD-SDI signals. The data transmitting apparatus is characterized by being equipped with a parallel data forming section which forms word string data De based on HD-SDI signals DHS of n channels, a data multiplexing section which obtains multiplex word string data Dm based on De, a multiple channel data forming section which forms bit string data DSX of m channels from Dm, a data multiplexing and P/S converting section which forms bit string data DTG based on DSX and in which a bit rate is set to 10 Gb/s or more, and an electric photo converting section which sends away DTG. | 07-01-2010 |
| 20110032953 | TIME DIVISION MULTIPLEXING COMMUNICATION SYSTEM WITH PARALLEL STRUCTURE AND METHOD FOR THE SAME - Disclosed are a Time Division Multiplexing (TDM) communication system with a parallel structure and a method for the same. A transmission apparatus of the TDM communication system with the parallel structure includes a Time Division Demultiplexer (TDDM) to perform time division demultiplexing of inputted first serial signals to thereby output the demultiplexed serial signals as a plurality of parallel signals, a plurality of modulators to respectively modulate the outputted parallel signals; a Time Division Multiplexer (TDM) to adjust a multiplexing ratio according to channel-related information, and to perform time division multiplexing of each of the modulated parallel signals in the adjusted multiplexing ratio to thereby output the multiplexed parallel signals as second serial signals, and a transmission antenna to transmit the outputted second serial signals. | 02-10-2011 |
| 20110032954 | MULTIPLEXING AND DEMULTIPLEXING DATA - A method of demultiplexing data, the method comprising: during each of a series of time-units, receiving multiplexed data, wherein the multiplexed data comprises, for each of a plurality of channels, a corresponding quantity of channel data of a corresponding data size; and during each of the series of time-units, for each of the plurality of channels, storing the corresponding quantity of channel data received during that time-unit in a contiguous region of a memory associated with that channel; wherein each of the plurality of channels has a corresponding time-unit-number such that, for each of the plurality of channels, the channel data stored in the corresponding region of the memory for that channel is to be processed after a number of time units equal to the time-unit-number for that channel has passed since channel data for that channel was last processed; characterised in that the method comprises: determining the locations of the regions of the memory based on the data sizes and the time-unit-numbers corresponding to one or more channels from the plurality of channels such that the step of storing will not store channel data at a location in the memory that is currently storing channel data that has not yet been processed. | 02-10-2011 |
| 20120033685 | SERIAL LINK VOLTAGE MARGIN DETERMINATION IN MISSION MODE - This disclosure describes systems and methods for determining a voltage margin (or margin) of a serializer/deserializer (SerDes) receiver in mission mode using a SerDes receiver. This is done by time-division multiplexing a margin determination and a tap weight adaptation onto the same hardware (or software, or combination of hardware and software). In other words, some parts of a SerDes receiver (e.g., an error slicer and an adaptation module) can be used for two different tasks at different times without degrading the effectiveness or bandwidth of the receiver. Hence, the disclosed systems and methods allow a SerDes receiver to determine the SerDes margin in mission mode and without any additional hardware or circuitry on the receiver chip. | 02-09-2012 |
| 20120044957 | Time-division multiplexing processing circuitry - An integrated circuit | 02-23-2012 |
| 20120269206 | HIGH SPEED AND HIGH JITTER TOLERANCE DISPATCHER - A deserializer circuit includes demultiplexer circuitry configured to receive serial data from an input and output a plurality of divided data outputs, and multiplexer circuitry configured to receive a first logic level at a first input of said multiplexer circuitry, and receive a second logic level at a second input of said multiplexer circuitry and receive one of said divided data outputs at a control input of said multiplexer circuitry. The outputs of the multiplexer circuitry produce the received serial data in a parallel form. | 10-25-2012 |
| 20120269207 | RECEIVER FOR RECEIVING AND DISPLAYING A PLURALITY OF STREAMS THROUGH SEPARATE ROUTES, METHOD FOR PROCESSING THE PLURALITY OF STREAMS AND TRANSMITTING METHOD THEREOF - A receiver is provided. The receiver includes a first receiving unit which receives a first stream over a broadcasting network; a second receiving unit which receives a second stream over a communication network; a data processing unit which detects aggregation information from at least one of the first and second streams, and which assembles and processes data of the first stream and data of the second stream according to the aggregation information; and an output unit which outputs the data processed by the data processing unit. Thus, relevant data can be assembled and processed easily. | 10-25-2012 |
| 20130010816 | METHOD, SYSTEM, COMMUNICATIONS NETWORK AND COMPUTER PROGRAM PRODUCT FOR TRANSMITTING INFORMATION IN A COMMUNICATIONS NETWORK - A method for transmitting first data to a first decentralized unit in a communications network from a central unit via a distribution point and via a first subscriber line serving the first decentralized unit and at least one other subscriber lines serving at least one other decentralized unit includes: splitting the first data at the central unit; transmitting the split first data from the central unit to the distribution point using the first subscriber line and the at least one other subscriber line; and merging, at the distribution point, the split first data on the first subscriber line for transmission of the first data to the first decentralized unit. | 01-10-2013 |
| 20130083810 | System and Method for Bit-Multiplexed Data Streams Over Multirate Gigabit Ethernet - Input/output of network switches and the like are improved by a system including a gearbox, an inverse-gearbox, and a Gigabit Ethernet link coupling them. The gearbox and inverse-gearbox interconnect data streams received through wider lower rate Gigabit Ethernet interfaces through narrower faster rate interfaces. The gearbox is configured to bit-multiplex physical-layer data streams received through input interfaces to generate bit-multiplexed data streams. The inverse-gearbox is configured to demultiplex the multiplexed data streams and to output the recovered data streams through output interfaces. One of the output interfaces is selected for each recovered data stream according to a respective embedded physical-layer data stream identifier. | 04-04-2013 |
| 20130266029 | NETWORK NODE FOR AN OPTICAL TRANSPORT NETWORK - A network node for an optical transport network is disclosed, which has a signal input for receiving a multiplexed transport signal carrying a number of n timeslots of a fixed size data capacity, a demultiplexer for demultiplexing the received signal into a number of m>1 sub-signals, each sub-signal carrying a fraction of n/m of said timeslots, one or more space switch modules for configurably switching said sub-signals, and a multiplexer receiving sub-signals from said one or more space switch modules; for multiplexing timeslots from said sub-signals into an outgoing multiplexed transport signal carrying n of said timeslots. The multiplexer is connected to the one or more switch modules over a number of l>m interconnections and receives from said one or more switch modules up to l sub-signals. Moreover, the multiplexer can be configured to select the n timeslots for the outgoing multiplexed transport signal from the up to l sub-signals. | 10-10-2013 |
| 20140036937 | OTDM COHERENT TRANSCEIVER - An OTDM coherent transceiver and related methods and apparatus that employ a pulsed source which advantageously allows higher symbol rates without requiring higher speed electronics. | 02-06-2014 |
| 20140064304 | SYSTEM AND METHOD FOR DISTRIBUTING OPTICAL SIGNALS - An optical signal distribution system is provided herein useful for multiple service operators (MSOs) in providing content data to subscribers, and receiving control and other data from subscribers. The system facilitates the transmission of content data to the subscribers and the control and other data from subscribers substantially in the optical domain. The system includes a head-end configured to transmit the content data via a forward channel optical signal and receive the control data via a composite reverse channel optical signal. The system also includes a signal distribution hub configured to receive and replicate the forward channel optical signal for transmission to optical taps, receive reverse channel optical signals from the optical taps, generate a composite reverse channel optical signal, and transmit the composite reverse channel optical signal. Each optical tap sends and receives the forward and reverse channel optical signals to and from a plurality of subscribers units. | 03-06-2014 |
| 20140079078 | MULTIPLEXING AND DEMULTIPLEXING DATA - Apparatus arranged to perform data multiplexing or demultiplexing or a non-transitory computer readable medium comprising a computer program which, when executed by a computer, carries out a method of multiplexing or demultiplexing data, the apparatus comprising a memory, an interface, and a processing unit arranged to determine locations of corresponding regions of the memory for corresponding channels based on data sizes and time-unit-numbers that have passed since a previous corresponding quantity of channel data for a corresponding channel was last stored in the memory or processed, wherein the data sizes and time-unit numbers correspond to one or more channels of the plurality of channels, such that the processing unit will not store the corresponding quantity of the channel data, for each corresponding channel of the plurality of channels, at a location in the memory that is currently storing any channel data that has not yet been output or processed. | 03-20-2014 |
| 20140177657 | Optical Fiber Transmission System - An optical fiber transmission system adapted to provide a remote passive identification of components deployed in said transmission system, wherein each component comprises an associated passive optical identification unit adapted to provide identification of a component type of the respective component on the basis of a received optical identification signature carried in an optical identification signal to said component. | 06-26-2014 |
| 20140233591 | METHOD FOR SHARING OPTICAL FIBER FOR CLOUD-BASED WIRED AND WIRELESS ACCESS NETWORK, AND SYSTEM AND APPARATUS FOR SAME - A system for sharing an optical fiber for a cloud-based wired and wireless access network, includes: a centralization device to generate summing signals by respectively summing multi-channel optical signals input from a wireless donor unit group and by summing multi-channel wired signals input from a wired donor unit group or generate wavelength-converted signals by wavelength-converting the multi-channel optical signals or the multi-channel wired signals, multiplex the summing signals or the wavelength-converted signals, and distribute the summing signals or the wavelength-converted signals to a plurality of devices connected to the centralization device via a shared optical fiber; and a distribution device group to generate corresponding optical signals by demultiplexing the summing signals or the wavelength-converted signals in units of wavelengths, and transmit the corresponding optical signals or the multi-channel wired signals to a wireless remote unit group and/or a wired remote unit group via a preset optical fiber. | 08-21-2014 |
| 20140247840 | Method for Tuning a Tunable Optical Transmitter in an Optical WDM Transmission System and Corresponding Optical WDM Transmission System - The invention relates to an optical WDM transmission system including a plurality of first optical transceivers ( | 09-04-2014 |
| 20140269784 | RELAY DEVICE AND OPTICAL NETWORK SYSTEM - A relay device includes: a first port, a plurality of second ports, a splitter configured to branch first optical signals input from the first port into the plurality of second ports; and a plurality of optical modulators configured to modulate shared carrier light by multiplexing the carrier light with a plurality of second optical signals with different frequencies input from the plurality of second ports and by inputting the multiplexed carrier light into a plurality of nonlinear optical mediums, and to transmit the carrier light to the first port. | 09-18-2014 |
| 20140362874 | OPTICAL TRANSMITTER, OPTICAL RECEIVER AND OPTICAL TRANSCEIVER - An optical receiver includes: an optical receiving device configured to generate an analog received signal that represents a received modulated optical signal; an A/D converter configured to generate a digital received signal from the analog received signal; an E/O circuit configured to generate an optical digital signal from the digital received signal; an O/E circuit configured to generate an electric digital signal from the optical digital signal; and a digital signal processor configured to recover a data signal from the electric digital signal. | 12-11-2014 |
| 20140362875 | METHOD AND DEVICE FOR OPTICAL TRANSMISSION AT ADAPTIVE EFFECTIVE RATES - A method for transmitting digital data by a primary optical signal between a transmitter terminal and a receiver terminal, involves the following steps: determining a magnitude characterizing optical-wave degradation between the transmitter terminal and the receiver terminal, determining a number of transmission channels by a decreasing function of the magnitude characterizing optical-wave degradation, distributing the digital data over the transmission channels, modulating optical signals of different wavelengths using digital data distributed over the transmission channels, generating the primary optical signal by wavelength multiplexing of the optical signals, and sending a transmission configuration, including at least the number of transmission channels, from the transmitter terminal to the receiver terminal. | 12-11-2014 |
| 20150010024 | DISTRIBUTED BASE STATION SIGNAL TRANSMISSION SYSTEM AND COMMUNICATION SYSTEM - A distributed base station signal transmission system is provided. The system includes a first multiplexing and demultiplexing unit, which is configured to multiplex a downlink signal emitted by the base band unit and output the downlink signal to the remote radio unit, a second multiplexing and demultiplexing unit, which is configured to multiplex an uplink signal emitted by the remote radio unit and output the uplink signal to the base band unit; a first colorless optical module receives and parse the uplink signal and generate the downlink signal; and a second colorless optical module is configured to receive and parse the downlink signal and generate the uplink signal. The present invention requires only one or a pair of fibers to implement interconnection between BBUs and RRUs, and does not need to use a large number of fibers and a metro wavelength division multiplexing network. | 01-08-2015 |
| 20150036699 | MULTI-PORT SERIAL MEDIA INDEPENDENT INTERFACE - A media independent interface in an integrated circuit device includes a first plurality of channels, each including a data transmit path and a data receive path, and a second plurality of channels, each including a transmit path to transmit an idle symbol and a receive path to receive the idle symbol. The interface also includes a codec, coupled to the transmit paths of the first and second pluralities of channels, to encode data and symbols on the transmit paths, and a multiplexer, coupled to the codec, to multiplex the data on the transmit paths of the first and second pluralities of channels as encoded by the codec. The interface further includes a Ser Des to serialize the multiplexed data. | 02-05-2015 |
| 20150055663 | INTERCONNECT SIGNAL TRANSMISSION SYSTEM - Systems and methods for transmitting interconnect signals include a source device having a first source device input connector of a first interconnect technology, a second source device input connector of a second interconnect technology, and a source device output connector. A cable includes a first connector that is coupled to the source device output connector, a second connector, and a transmission line extending between the first connector and the second connector. A receive device is coupled to the second connector. The transmission line is configured to pass a first signal of the first interconnect technology and a second signal of the second interconnect technology, received through the source device output connector by the first connector, to the second connector. The first and second signal may be multiplexed into a single stream before being passed over the transmission line, and then demultiplexed for use by the receive device. | 02-26-2015 |
| 20150055664 | RECONFIGURABLE AND VARIABLE-RATE SHARED MULTI-TRANSPONDER ARCHITECTURE FOR FLEXIBLE ETHERNET-BASED OPTICAL NETWORKS - Systems and methods for data transport, including receiving one or more signals into a reconfigurable and flexible rate shared rate multi-transponder network architecture, wherein the network architecture includes one or more transponders with multiple line side interfaces and one or more client side interfaces. The transponders are configured to map one or more signals to multiple parallel Virtual Ethernet Links, remove idle characters from the one or more signals, buffer one or more blocks of characters using an intermediate block buffer, activate and deactivate one or more portions of input/output electrical lanes of an Ethernet module, multiplex and demultiplex the one or more signals to and from the input/output electrical lanes to enable sharing of a single optical transceiver by multiple independent signals, and insert blocks of idle characters to enable transmission over a lower rate transmission pipe. | 02-26-2015 |
| 20150098477 | REVERSIBLE WAVELENGTH CHANNELS FOR OPTICAL COMMUNICATION NETWORKS - An optical transmission system comprises at least one first connection point and one second connection point arranged to transmit and receive at least one channel signal transmitted via at least one optical means connecting the first connection point and the second connection, wherein each of the at least one channel signal is reversibly configurable to be transmitted in either a first direction or a second direction between the first connection point and the second connection point. A method of transmitting at least one channel signal between a first connection point and a second connection point via at least one optical media in an optical transmission system, wherein each of the at least one channel signals is reversibly configurable to be transmitted in either a first direction or a second direction between the first and the second connection points. | 04-09-2015 |
| 20150365185 | DYNAMICALLY RECONFIGURABLE CHANNELIZER - Embodiments are directed to a channelizer architecture configured to provide fully configurable frequency spectrum shaping by: establishing a plurality of parameters of the architecture, receiving an input signal, processing, by the architecture, the input signal in accordance with the plurality of parameters to obtain an output signal, analyzing the output signal to detect an object, and modifying the plurality of parameters to account for at least one dynamic condition associated with the object. | 12-17-2015 |
