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| Number | Title | Issue Date |
| 7519130 | Front end interface for data receiver A data receiver is provided which includes a front end interface circuit having an alternating current (AC) transmission receiving mode and a direct current (DC) transmission receiving mode. The front end interface circuit includes an offset compensation circuit ope... | 04/14/2009 |
| 7369635 | Rapid discrimination preambles and methods for using the same A system, method and program are disclosed for achieving rapid bit synchronization in low power medical device systems. Messages are transmitted via telemetry between a medical device and a communication device. The synchronization scheme uses a portion of a unique ... | 05/06/2008 |
| 7365679 | Positioning apparatus, control method of positioning apparatus, control program for positioning apparatus, and computer-readable recording medium having control program for positioning apparatus recorded therein A positioning apparatus that measures a current position by using measurement basis codes carried on satellite waves from a plurality of positioning satellites includes: a first phase error information generating unit that generates first phase error information ind... | 04/29/2008 |
| 7366268 | Selective data inversion in ultra-wide band communications to eliminate line frequencies A method for generating an ultra-wide-band (UWB) having a reduced discrete frequency component defines frame synchronization signal and an inverted frame synchronization signal. As each frame is generated, the method randomly selects the frame synchronization signal... | 04/29/2008 |
| 7339502 | Method and device for transmitting data over a plurality of transmission lines In the case of a method and a device for transmitting data units by way of a transmission medium that comprises at least three adjacent transmission lines, first of all a plurality of codes is supplied. Each code has a number of code sections that corresponds to the... | 03/04/2008 |
| 7327742 | Communication system and method for sending isochronous streaming data within a frame segment using a signaling byte A communication system, network interface, and communication port is provided for interconnecting a network of multimedia devices. The multimedia devices can send streaming and/or non-streaming data across the network. The network accommodates all such types of data... | 02/05/2008 |
| 7305044 | Data modulation method and apparatus A data bit stream is segmented into 4-bit data words and successively shifted two bits at a time. For each 4-bit data word a corresponding 3-bit code word is detected in a conversion table. Two higher significant bits of each data word is converted to the detected c... | 12/04/2007 |
| 7292161 | NB/MB coding apparatus and method using both disparity independent and disparity dependent encoded vectors Techniques for encoding N-binary symbol (NB) source data vectors into M-binary symbol (MB) encoded vectors, M>N>0, are provided. Techniques for decoding are also provided. Exemplary coding and decoding apparatuses are presented, as is an exemplary 8B/10B encoding sc... | 11/06/2007 |
| 7275205 | Data modulation method and apparatus capable of suppressing DC component using parity information of synchronization codeword A data modulation method to suppress a DC component using parity information of a synchronization codeword, and an apparatus for executing the method. Input data is multiplexed according to multiplexing information, the synchronization codeword including the multipl... | 09/25/2007 |
| 7269212 | Low-latency equalization in multi-level, multi-line communication systems Low-latency equalization mechanisms for multi-PAM communication systems are disclosed that reduce delay and complexity in signal correction mechanisms. The equalization mechanisms tap into input signals for a multi-PAM signal driver, and compensate for attenuation a... | 09/11/2007 |
| 7260155 | Method and apparatus for encoding and decoding digital communications data In one aspect, the present invention is a system and technique that provides for the systematic development or implementation of codes that increase the robustness of systems employing, for example, PAM-n transmission techniques. The system and technique of this asp... | 08/21/2007 |
| 7218256 | DC-free code having limited error propagation and limited complexity A method and apparatus are provided for decoding a sequence of code words into a sequence of data words. Each code word includes an encoded data word and an indicator bit. The encoded data word is extracted unchanged into a respective unencoded data word if an indic... | 05/15/2007 |
| 7190738 | Data assisted serial link decoder using oversampling A communication system includes a receiver for receiving a serial bit stream from at least one communication channel, and a decoder, in communication with the receiver, for decoding words from the received serial bit stream, the words being defined at least in part ... | 03/13/2007 |
| 7133480 | Method and apparatus for processing digitally sampled signals at a resolution finer than that of a sampling clock A method and related apparatus for reproducing a periodic signal received over a communication channel, or signal window of a desired profile, wherein the resolution of the reproduced signal or window is not limited by a digital sampling interval. The profile can be... | 11/07/2006 |
| 7133356 | Method and apparatus for reducing EMI emissions Briefly, in accordance with one embodiment, a circuit to encode binary digital signals so as to reduce EMI emissions during signal transmission across a bus or interconnect includes circuitry to apply a pseudo-random pattern of binary digital signals to encode selec... | 11/07/2006 |
| 7126408 | Method and apparatus for receiving high-speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 10/24/2006 |
| 7116678 | High speed physical layer for CSMA/CD systems An electronic communications network technology, referred to as 100BASE-TD, offers full duplex operation and robust performance on marginal CAT5 wiring. It highly leverages 100BASE-TX functional blocks and is very complementary to 100BASE-TX, for example with regard... | 10/03/2006 |
| 7110681 | Method and apparatus for optical transmission Binary information is subjected to RZ encoding and multi-level encoding, and the encoded signal is optically modulated. ... | 09/19/2006 |
| 7099579 | Bridge terminal output unit The commercial demand for higher aggregate data rates has led to DWDM (Dense Wavelength Division Multiplexed) transmissions. Network elements need the capacity in these systems to reconfigure in case of a bit stream failure. The instant invention can bridge communic... | 08/29/2006 |
| 7084789 | DC-free code having limited error propagation and limited complexity A method and apparatus are provided for encoding and decoding digital information. A sequence of data words is received, wherein each data word has a running digital sum (RDS). The sequence of data words is encoded into a sequence of corresponding code words, which ... | 08/01/2006 |
| 7071850 | Method and apparatus to facilitate transmission of ternary movable barrier operator information Ternary data as corresponds to a movable barrier operator is provided (21) and converted (22) into corresponding binary information. In a preferred approach this comprises converting each ternary trit into a corresponding binary pair. Pursuant to a pre... | 07/04/2006 |
| 7064691 | Noise suppression circuit, ASIC, navigation apparatus, communication circuit, and communication apparatus having the same A noise suppression circuit encompasses an internal circuit, a bypass capacitor, first and second transistors. The internal circuit has high and low level terminals, and the low level terminal is connected to a low level power supply line. The internal circuit is su... | 06/20/2006 |
| 7064689 | Encoder, decoder, and data transfer system An encoder suppresses effectively the high-frequency components of data to be transmitted by decreasing the changing points of serial data, thereby suppressing EMI. A changing-point counter counts changing points of n-bit data (n: a positive integer) to generate a c... | 06/20/2006 |
| 7055073 | Coding method for coding packetized serial data with low overhead Blocks of input data are received. The input data comprises packets of information words. The packets are preceded and followed by control words. A master transition is appended to the beginning of each block to form a respective frame for transmission. The master t... | 05/30/2006 |
| 7042957 | Method and communication system for transmitting information with the aid of a multicarrier method To transmit information with the aid of a transmit signal exhibiting a number of frequency-specific subcarriers from a first unit to a second unit via a transmission medium, the frequency-selective transmission characteristics of the transmission medium are determin... | 05/09/2006 |
| 7043160 | Method, system and signal for carrying overhead information in a transport network employing photonic switching nodes A communications signal which carries a purely digital wrapper signal and a method and system for generating it and extracting overhead information therefrom. The wrapper signal can be received by a high-performance format-specific receiver at the end of the network... | 05/09/2006 |
| 7038599 | Stochastic DC control When recording data on a record carrier of the DC content of the data recorded is important in order to allow accurate reproduction of the data. The Digital Sum Value represents the DC content; the Digital Sum Value can be controlled by replacing code words at the o... | 05/02/2006 |
| 7039121 | Method and system for transition-controlled selective block inversion communications A serial communications architecture for communicating between hosts and data store devices. The Storage Link architecture is specially adapted to support communications between multiple hosts and storage devices via a switching network, such as a storage area netwo... | 05/02/2006 |
| 7039330 | Optical signal equalizer with adjustable linear filter Mitigating errors caused by the dispersion of optical or electrical signals. Errors caused by dispersion in high frequency system are mitigated by passing a received signal through an adjustable linear filter that counteracts a channel response of a channel on which... | 05/02/2006 |
| 7002492 | High rate running digital sum-restricted code A method and apparatus are provided for encoding successive data words into respective code words. Each data word is mapped into data segments that are constrained to a first number of bit patterns, which is less than a second number of bit patterns that satisfy a f... | 02/21/2006 |
| 6970500 | Method for determining data bit transitions for a low level spread spectrum signal Apparatus and methods for determining the timing of the data bit transitions. “N” assumptions of data bit transitions are used for determining N integrations of an incoming spread signal for data bit time periods where N is the data bit time period divided by th... | 11/29/2005 |
| 6965262 | Method and apparatus for receiving high speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 11/15/2005 |
| 6961010 | DC-free code design with increased distance between code words A method and apparatus are provided for encoding digital information. A sequence of successive data words are encoded into a sequence of successive code words according to a code, such that a running digital sum (RDS) of the sequence of successive code words is boun... | 11/01/2005 |
| 6956510 | Methods, software, circuits and systems for coding information Methods, software, circuits, architectures, and systems for encoding, decoding and error checking/correcting information, particularly pulse amplitude modulated information. The present invention enjoys particular advantage when used to encode x-unit sequence values... | 10/18/2005 |
| 6946881 | Method to detect the polarity of sync signals without external capacitor or clock In a polarity detector circuit for detecting the polarity of monitor sync signals, a clock generator and counter circuit are provided to count clock cycles during the positive and negative portions of the signal. Comparators are used to compare the counter values to... | 09/20/2005 |
| 6927709 | Transmission and reception interface and method of data transmission An N-bit word is produced from an M-bit code received on an M-bit line, M being larger than N, the M-bit code comprising at least an M-bit code word and a previous M-bit code word, the M-bit code word comprising different levels at at least two bit positions, and th... | 08/09/2005 |
| 6914878 | Fault detection in multi-plane switch A cell switch node (20) has a first switch plane (22); a second switch plane (24); a sender switch port interface unit (26S); and a receiver switch port interface unit (26R). The sender switch port interface u... | 07/05/2005 |
| 6865231 | High-speed interconnection adapter having automated crossed differential pair correction An adapter configured to automatically detect and compensate for differential signal inversion is herein disclosed. In one embodiment, the adapter is part of a computer network having differential conductor pairs conveying differential signals between network device... | 03/08/2005 |
| 6738394 | Method, apparatus and protocol for the unidirectional and interference-safe transmission of digital data via radio waves In a method for the unidirectional and interference-safe transmission of digital data via radio waves, wherein the data which are composed of data packets each comprising a defined number of bytes and of at least one synchronization packet are transmitted from a tra... | 05/18/2004 |
| 6509849 | Method and device for digitally coding binary data with a particular transmit signal spectrum A coding device for coding binary data with a particular transmit signal spectrum, the coding device having a data stream separating device for separating a data stream, which consists of the binary data to be coded, into data blocks having a predetermine... | 01/21/2003 |
