| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 370485000 | Subscriber carrier | 15 |
| 20080253401 | TRANSIENT ROBUST CHANNEL FOR COMMUNICATION SYSTEMS - One embodiment of the present invention relates to a network device. The network device includes a receiver configured to be coupled to a transmission medium supporting a multi-carrier channel over which data is communicated as symbols in a first communication state according to an initial bit-loading configuration. The receiver is further configured to detect noise that can corrupt the symbols on the multi-carrier channel. In addition, the receiver is configured to, in response to the detected noise, allocate at least part of the multi-carrier channel to a transient robust channel that facilitates adaptive communication. Other methods and devices are also disclosed. | 10-16-2008 |
| 20080253402 | Timing device and method - A logical network directory database compliant with the X.500 standard for a directory data system is disclosed. The network directory database provides a source of subscriber and service data accessible by various control and management processes that require subscriber information. The network directory database may be extensible across various communications service providers and IT domain. Further, the disclosed network directory database may be applied to new and existing services, such as, IP Multimedia Subsystem, Unlicensed Mobile Access (UMA) and other IP services. | 10-16-2008 |
| 20080253403 | Nomadic subscriber data system - A logical network directory database compliant with the X.500 standard for a directory data system is disclosed. The network directory database provides a source of subscriber and service data accessible by various control and management processes that require subscriber information. The network directory database may be extensible across various communications service providers and IT domain. Further, the disclosed network directory database may be applied to new and existing services, such as, IP Multimedia Subsystem, Unlicensed Mobile Access (UMA) and other IP services. | 10-16-2008 |
| 20090003384 | DATA TRANSMISSION SCHEME WITH SCHEDULING OPTIMIZATION FOR PHYSICAL CHANNEL GROUP - A novel apparatus for and a method of optimized data transmission whereby an input data stream is distributed over a plurality of physical channels within a logical channel group. Transmission of data over the channel group appears as transmission over a single logical channel having a bandwidth approximately equal to the sum of the physical channel bandwidths. The physical channels making up the logical channel group may have different bandwidth capacities. The method of data unit distribution among a plurality of physical channels generates several transmission plans for scheduling data units, which may have difference lengths, over the physical channels where the data stream is composed of data units from different sessions. A best plan according to one or more optimization criteria is selected and used for distribution of the data units. The original order of transmission of the data units can be reproduced for each data session at the receiving side without the need for additional fields or modification of existing fields of the data units. | 01-01-2009 |
| 20090074011 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, CONTROL METHOD AND STORAGE MEDIUM - The present invention provides a communication system that can suppress the crosstalk of a communication device installed in a remote terminal. The communication system according to the invention is the communication system configured so that a first communication device ( | 03-19-2009 |
| 20100246606 | Optimizing the Transmit Power Spectrum Density (PSD) Of A Remotely Deployed Line to Ensure Spectral Compatibility - An apparatus comprising a transmitter at a digital subscriber line (DSL) Cabinet configured to transmit a downstream signal in a subscriber line according to a power spectral density (PSD) configuration, wherein the PSD configuration comprises a cutoff frequency based on a required data-rate of the subscriber line. Also included is an apparatus comprising at least one processor configured to implement a method comprising determining a downstream PSD for a PSD mask for a DSL, determining a cutoff frequency for the PSD profile based on a data-rate required for the DSL, and adjusting a downstream signal power on the DSL according to the PSD mask. Included is a method comprising configuring a plurality of transmitted PSDs for a plurality of Exchange deployed lines and Cabinet deployed lines by varying a plurality of cutoff frequencies corresponding to the transmitted PSDs, wherein the cutoff frequencies are varied by line, with time, or both. | 09-30-2010 |
| 370486000 | Program distribution | 6 |
| 20100150179 | REMULTIPLEXING APPARATUS - The remultiplexing apparatus comprises a control information selecting means for selecting a packet containing program control information from the inputted bit stream, a program control information editing means for editing contents of the selected program control information and generating new program control information corresponding to an outputted bit stream, and a remultiplexing means for multiplexing again the packet containing media information in the inputted bit stream and the program control information generated by the program control information editing means. | 06-17-2010 |
| 20120177066 | Digital Video Apparatus for Multiplexing Single Program Transport Streams into a Multiple Program Transport Stream - An apparatus for transporting digital multimedia receives signals for a plurality of single program transport streams (SPTS). Each SPTS is transmitted as a series of groups of a predefined number of transport stream packets. An input buffer that receives the packets is configured to hold only the predefined number of packets at any point in time. A table builder receives packets from the input buffer and assigns a set of unique packet identifiers to the packets from each SPTS, reconfigures each program map table in the packets, and generates a program association table for a multiple program transport stream (MPTS). The table builder retains unaltered the program clock reference in the data packets. A first-in, first-out buffer combines packets received from the table builder into a MPTS. An output stage modulates a carrier signal, such as for a television channel, with the MPTS. | 07-12-2012 |
| 20120307843 | Method and System for Providing Faster Channel Switching in a Digital Broadcast System - Methods, apparatuses, and systems are presented for switching between channels of encoded media data involving receiving encoded media data including reference frames and dependent frames for a plurality of channels, wherein each dependent frame refers to at least one reference frame. Frames associated with a first channel from the plurality of channels are decoded to generate a decoded signal for the first channel. While decoding frames associated with the first channel, data corresponding to at least one reference frame associated with a second channel from the plurality of channels are stored. In response to a control signal for switching from the first to the second channel, at least one dependent frame associated with the second channel is decoded by utilizing the stored data corresponding to the at least one reference frame associated with the second channel, to generate a decoded signal for the second channel. | 12-06-2012 |
| 370487000 | Combined communication of diverse information types | 3 |
| 20090219953 | METHOD AND APPARATUS FOR ALLOWING NON-IP BASED NETWORKS TO INTERACT WITH IPTV-BASED SYSTEMS - A method of allowing a non-IP-based network to interact with an IPTV-based network is provided. The method comprises: receiving an indication at an IPTV Mediation Application Server (IPTV Mediation AS) that a subscriber to IPTV service is watching television, wherein the television is connected to an IPTV set-top box (IPTV STB) in a home viewing network; receiving a call from a caller directed to a circuit-switched communication device of the subscriber; suspending normal call processing and giving control of the call to the IPTV Mediation AS; interacting with the home viewing network and sending instructions to the IPTV STB regarding a pop-up message to be played on the television; receiving instructions for handling the call at the IPTV Mediation AS; and sending the instructions for handling the call to a service switching point. | 09-03-2009 |
| 20090296741 | VIDEO PROCESSOR AND VIDEO PROCESSING METHOD - According to one embodiment, a video processor includes an interface module which sequentially receives two video and audio multiplex streams to be spliced as a preceding stream and a following stream, and a stream converting module which sequentially extracts time information monotonously increasing in each of the preceding stream and the following stream received by the interface module and performs rewriting for shifting one time information of either the preceding stream or the following stream in lump such that the time information is continuous at a splice point between the preceding stream and the following stream. | 12-03-2009 |
| 20100226392 | DTV TRANSMITTING SYSTEM AND METHOD OF PROCESSING DATA IN DTV TRANSMITTING SYSTEM - A DTV transmitting system includes two pre-processors. The first pre-processor codes high-priority enhanced data for forward error correction (FEC) and expands the FEC-coded data. The second pre-processor codes low-priority enhanced data for FEC and expands the FEC-coded low-priority enhanced data. The DTV transmitting system further includes a data formatter generating enhanced data packets including the pre-processed data, a multiplexer multiplexing the enhanced data packets with main data packets, an RS encoder RS-coding the multiplexed data packets, a data interleaver interleaving the RS-coded data packets, and a block processor which codes each block of enhanced data in the interleaved enhanced data packets and bypasses the interleaved main data packets. | 09-09-2010 |
| 370488000 | Connecting filters | 3 |
| 20080240161 | Method and apparatus for digital subscriber line transfer - VDSL (Very-high-data-rate Digital Subscriber Line) technology uses at least one downlink frequency band (D | 10-02-2008 |
| 20080310456 | Communication System over a Power Line Distribution Network - The present disclosure provides a system for receiving signals over a power line distribution. Typically, problems of noise and interference are being solved at the receiver side. Systems of the present disclosure, however, are not limited to the receiver-side solution. Systems according to the present disclosure may also be used at the transmitter side. The receiver comprises a high pass filter, a preselect crossover filter, and an analog front-end receiver architecture. | 12-18-2008 |
| 20090316727 | Real-Time Optimization of TX FIR Filter for High-Speed Data Communication - A feedback module is defined to receive as input a set of data sample signals and a set of reference sample signals. Each of the data and reference sample signals is generated by sampling a differential signal having been transmitted through a FIR filter. The feedback module is defined to operate a respective post cursor counter for each post cursor of the FIR filter and update the post cursor counters based on the received sets of data and reference sample signals. Also, the feedback module is defined to generate a tap weight adjustment signal for a given tap weight of the FIR filter when a magnitude of a post cursor counter corresponding to the given tap weight is greater than or equal to a threshold value. An adaptation module is defined to adapt a reference voltage used to generate the reference sample signals to a condition of the differential signal. | 12-24-2009 |
