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| Number | Title | Issue Date |
| 8184665 | Network device A disclosed network device includes a plurality of interface cards that receive clock signals and clock signal quality information from other devices via communication lines, respectively being predetermined communication line types corresponding to the plurality of... | 05/22/2012 |
| 8179925 | Sink device for a wireless local area network The invention discloses a sink device and a signal receiving method thereof, applicable to wireless local area network. The sink device receives a plurality of beacon signals, synchronizes the beacon output signal generated by itself with the operating clock of the ... | 05/15/2012 |
| 8149882 | System and method for operating a bus system A bus system for the real-time communication of a superordinate unit with one or more subordinate units is used for exchanging address and data information via a bus. For the rapid exchange of messages, further fields are provided between the fields for the address ... | 04/03/2012 |
| 7916759 | Method of generating code sequence and method of transmitting signal using the same A method of generating a code sequence and method of adding additional information using the same are disclosed, by which a code sequence usable for a channel for synchronization is generated and by which a synchronization channel is established using the generated ... | 03/29/2011 |
| 7835405 | Multiplexing/demultiplexing on a shared interface An embodiment of an interface system including, among others, an aggregation device comprising a plurality of ports, a first device comprising a plurality of ports, and one or more links that link the entire plurality of ports of the aggregation device and first dev... | 11/16/2010 |
| 7561601 | Method for synchronizing digital signals The invention relates to a method of synchronizing first and second digital signals presenting digital elements to be put into correspondence, on the basis of time references. The method includes preliminary synchronization of the two digital signals using time refe... | 07/14/2009 |
| 7529274 | Communication system with variable length data frames A wireless communications system in which an access point (AP) transmits a downlink signal for reception by one or more subscriber unit(s) (SU) and the subscriber unit (SU) transmits an uplink signal for reception by the access point (AP). The downlink signal from t... | 05/05/2009 |
| 7508844 | Frame signal waveform observation apparatus and method A trigger signal generating apparatus includes a frame synchronous circuit which receives a frame signal having a predetermined bit rate and outputs a synchronous signal in synchronism with an input timing of leading data of the frame signal, a position information ... | 03/24/2009 |
| 7430196 | Transmission systems A receiver comprising a processor having an input to receive a sequence of transmission frames conforming to a transmission protocol to represent payload data, a memory arranged to store and to provide to the processor a transmissi... | 09/30/2008 |
| 7421013 | Maximum likelihood estimation of time and frequency offset for OFDM systems A receiver in an OFDM system may include a joint maximum likelihood (ML) estimator that estimates both time offset and frequency offset. The estimator may use samples in an observation window to estimate the time offset and frequency offset. ... | 09/02/2008 |
| 7421048 | System and method for multimedia delivery in a wireless environment A multimedia processing system and method thereof are provided. The system and method provide for synchronizing a first clock of a multimedia decoder of a first multimedia processing device to a second clock of a multimedia encoder of a second multimedia processing ... | 09/02/2008 |
| 7418036 | Method and circuit for timing pulse generation In a method and a circuit for timing pulse generation, a frame pulse of a corresponding system is masked when an alarm signal of either a working system or a protection system is received, a monitoring window which indicates an absorbable range of delay time differe... | 08/26/2008 |
| 7406090 | Managing a buffer for media processing A method and apparatus to perform buffer management for media processing are described. ... | 07/29/2008 |
| 7403547 | Method and system for synchronizing separated edge QAM devices located remotely from a CMTS The clocks of one or more edgeQAM devices are synchronized with a master clock at the remotely located CMTS. A master clock signal may be transmitted via a dedicated gigabit Ethernet link. Alternatively, master clock information contained in a time synchronization m... | 07/22/2008 |
| 7394801 | Cell search method suitable for initial cell search and target cell search A wireless device generates a peak profile for a primary synchronization channel (PSCH), and has a synchronization stage for performing code group identification and scrambling code identification. A first peak from the peak profile is chosen. The first peak has a f... | 07/01/2008 |
| 7391792 | Data mapper and method for flexible mapping of control and data information within a SONET payload A digital information mapper and method for mapping sequences of information characters into a SONET (synchronous optical network) payload in such a manner that there can be an arbitrary mixture of control and/or data values in those sequences. Each information char... | 06/24/2008 |
| 7386082 | Method and related apparatus for searching the syncword of a next frame in an encoded digital signal A method and apparatus for searching the synchronization signal of a next frame in encoded digital signal without the need of referring to a frame length indication signal. The encoded digital signal contains a plurality of frames, wherein each frame may have varyin... | 06/10/2008 |
| 7386006 | Process and device for synchronization and codegroup identification in cellular communication systems and computer program therefor In a first step, slot synchronization may be obtained by setting in correlation the received signal with a primary sequence, which represents the primary channel, and storing the received signal. During a second step, the correlator may be re-used for correlating th... | 06/10/2008 |
| 7376157 | Synchronizing ADSL Annex C transceivers to TTR Techniques for establishing TTR indication in ADSL Annex C based communication systems are disclosed. The techniques enable, for example, hyperframe alignment and synchronized initialization procedures (e.g., G.hs). ... | 05/20/2008 |
| 7372874 | Method and device for synchronisation in OFDM A method of synchronising an Orthogonal Frequency Division Multiplexed (OFDM) IEEE 802.11a data packet at a receiver is disclosed. The 802.11a data packet has a series of short training sequence (STS) symbols as a preamble. Cross-correlation at the receiver of the S... | 05/13/2008 |
| 7366099 | Method and apparatus for synchronizing a data communications network A method is disclosed for synchronizing a data communications network. The data communications network comprises a plurality of existing nodes forming one or more synchronization domains and a node entering the network. Each existing node in a synchronization domain... | 04/29/2008 |
| 7362779 | Transmission of data frames as a plurality of subframes over a plurality of channels A data communication system includes a rotating deinterleaver that reformats incoming data frames into a plurality of data subframes. The data contained in the incoming data frames is deinterleaved according to a protocol that distributes frame alignment signals per... | 04/22/2008 |
| 7342946 | Device for processing data signals, method thereof, and device for multiplexing data signals In a device for processing data signals, a storing part stores an input signal and the data signals included in the input signal are extracted from the storing part and the data signals are output at a desired output speed. Then, the data signal is output based on s... | 03/11/2008 |
| 7343101 | Method and system for reducing crosstalk in an optical communication network A method of reducing correlation between channels in an optical communication network. A transmission characteristic of first data on a first channel is altered to reduce correlation between the first data and second data on a second channel. The reduction in correl... | 03/11/2008 |
| 7318179 | Virtual routing system for real-time network applications A virtual routing system includes a number of physical routers. One of the physical routers is the master with respect to a given source of traffic, and the others are backups. If the master router fails, then one of the backup routers becomes the master to provide ... | 01/08/2008 |
| 7310694 | Reducing information reception delays A technique for reducing information reception delays is provided. The technique reduces delays that may be caused by protocols that guarantee order and delivery, such as TCP/IP. The technique creates multiple connections between a sender and recipient computing dev... | 12/18/2007 |
| 7301967 | Method and apparatus for processing custom time division multiplexed signals Method and apparatus for processing time division multiplexed (TDM) signals which may be custom in format. The TDM signal is translated to an intermediate frequency, or externally demodulated, input, and processed. Individual channels of either analog, digital or bo... | 11/27/2007 |
| 7301969 | OFDM transmitting apparatus, receiving apparatus and transmitting system and signal structure of transmission signal for use in the same A transmitting system wherein a transmission signal composed of main data and a TMCC signal having a SYNC pattern indicating the header portion and a bit pattern indicating setting information of the main data is transmitted and received. In the transmitting apparat... | 11/27/2007 |
| 7302268 | System and method for radio transmitter acquisition A method of a receiver determining the timing of a signal transmitted in a time-slotted manner, the signal comprising a sequence of information which is repeated at a known interval and has at least a known minimum length. The method performs correlation operations ... | 11/27/2007 |
| 7292608 | Method and apparatus for transferring synchronous optical network/synchronous digital hierarchy(SONET/SDH) frames on parallel transmission links The present invention relates to methods and systems for transferring SONET/SDH frames between nodes by mapping the SONET/SDH frames onto individual channels of data and transferring the SONET/SDH frames over parallel transmission links. More particularly, the metho... | 11/06/2007 |
| 7286567 | Telecommunications system, and methods for transmitting data, and telecommunication system synchronization method Telecommunications systems can be synchronized via the transmission link. In this process, the telecommunication systems receive the clock signal and an additional information item, which describes the quality of the clock signal, from the received data stream. In t... | 10/23/2007 |
| 7287113 | Method of and apparatus for controlling bidirectional streams of isochronous data flowing between an application and a bus structure An isochronous data pipe provides a bi-directional path for data between an application and a bus structure. The isochronous data pipe includes the ability to send, receive and perform manipulations on any isochronous stream of data, including data on any number of ... | 10/23/2007 |
| 7272069 | Multiple-clock controlled logic signal generating circuit A multiple-clock controlled logic signal generating circuit is proposed, which is designed for use to generate a logic signal during specified periods with reference to multiple clock signals; and which is characterized by the use of a set of switching modules to sw... | 09/18/2007 |
| 7269355 | Optical space communications device and control method thereof An optical space communications device includes a transmitter circuit which assigns an idle code indicating that the device is transmitting no data so that the idle code differs from an idle code for another device and which, when the transmitter circuit continuousl... | 09/11/2007 |
| 7257165 | Method and apparatus for preamble detection and time synchronization estimation in OFDM communication systems A novel method and apparatus for preamble detection and time synchronization estimation in OFDM communication systems is described. The present invention can be easily implemented to provide preamble detection and highly accurate time synchronization estimations. Th... | 08/14/2007 |
| 7254115 | Split-transaction bus intelligent logic analysis tool An improved split-transaction bus intelligent logic analysis tool has a bus synchronizer, a decoder and a logic analysis function. The bus synchronizer is configured to receive link traffic and frame the link traffic into a plurality of framed packets, the plurality... | 08/07/2007 |
| 7254702 | Method of distributed recording whereby the need to transition to a second recording device from a first recording device is broadcast by the first recording device An automatically configuring storage array includes a plurality of media storage devices coupled together within a network of devices. Preferably, the network of devices is an IEEE 1394-2000 serial bus network of devices. The media storage devices are utilized to re... | 08/07/2007 |
| 7245637 | Methods and apparatus for suppressing signaling tones in telephony signal In some embodiments, a method includes detecting a tone in each data frame of a sequence of telephony signal data frames. A first data frame of the sequence of telephony signal data frames may be transmitted immediately after detecting the tone therein. Transmission... | 07/17/2007 |
| 7242696 | Digital TDMA link with no sync word The portion of TDMA frames otherwise containing the sync word is eliminated for one or more data frames at the end of a TDMA data burst to provided added bandwidth for data payload or for a reduced bandwidth. Once a communication channel has been established and is ... | 07/10/2007 |
| 7231221 | Channel access methods and apparatus in low-power wireless communication systems An access scheme in a communication system can deal with a mix of devices having different power constraints and different latency requirements and allow highly asymmetric latency behavior. Such a communication system may include a central control station that broad... | 06/12/2007 |
