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| Number | Title | Issue Date |
| 8189652 | Method and apparatus for detecting high-mobility state of mobile terminal and related device The invention provides a method of detecting high-mobility state of mobile terminal, comprising steps of: estimating a channel impulse response (CIR) based on received signal samples; performing channel equalization based on said received signal samples and the esti... | 05/29/2012 |
| 8081676 | Method and apparatus for data reception Method and apparatus for data reception are provided, retrieving digital values transmitted through a cable. In a data receiver, an equalizer equalizes an input signal based on a boost value to generate an equalized signal, and a data extractor samples the equalized... | 12/20/2011 |
| 8018992 | Performing adaptive external equalization In one embodiment, the present invention includes a method communicating control information for an external adaptive equalization process for a channel coupled between a transmitter and a receiver from an external agent. In this way, the external agent may control ... | 09/13/2011 |
| 7944964 | Apparatus and method for stable DEF using selective FBF A decision feedback equalizing apparatus selectively using a feedback filter and a method thereof are provided. The apparatus includes: an equalizing unit including a feed forward filter (FFF) for correcting a distorted transmission channel by receiving a match-filt... | 05/17/2011 |
| 7907663 | Multi-user equalization method and device for wireless communication system In certain embodiments, an equalization device for a wireless communication receiver includes multiple adjusting means coupled between corresponding multiple weighting means and a combining means. The multiple weighting means performs a weight process on a received ... | 03/15/2011 |
| 7903727 | Channel memory length selection method and apparatus for wireless communication systems A channel memory length selection method for wireless communication systems is provided. The method comprises estimating an initial channel impulse response (CIR) for the wireless communication system; determining a first refined CIR with a first group of taps and a... | 03/08/2011 |
| 7822111 | Receiving apparatus and method thereof Example embodiments relate to a receiving apparatus and method thereof. In an example, the receiving apparatus may include a clock generating unit generating a plurality of internal clock signals based on a received external clock signal and an equalization receivin... | 10/26/2010 |
| 7801210 | Apparatus and methods for implementing a split equalizer filter for sparse channels The invention concerns methods and apparatus for performing channel equalization in a direct-sequence spread spectrum communications system. The methods and apparatus of the present invention are particularly applicable in situations where communication occurs over ... | 09/21/2010 |
| 7782934 | Parameter scanning for signal over-sampling A method and apparatus for parameter scanning for signal over-sampling. An embodiment of an apparatus includes an equalizer to equalize received data values, and a sampler to over-sample the equalized data. The apparatus includes an eye monitor to generate informati... | 08/24/2010 |
| 7724816 | Dynamic switching between maximum likelihood sequence estimation (MLSE) and linear equalizer for single antenna interference cancellation (SAIC) in a global system for mobile communications (GSM) system In a GSM/EDGE Single Antenna Interference Cancellation (SAIC) operation environment, a mobile station is required to operate in a wide range of interference levels. An SAIC linear equalizer that takes advantage of the GMSK signal structure performs better than a con... | 05/25/2010 |
| 7697602 | Method for pre-filtering training sequences in a radiocommunication system A training sequence is pre-filtered in a radiocommunication system having an emitter in the form of an antenna device with several antenna systems, thereby making it possible to transmit the training sequences through a pre-filter to said antenna systems side for re... | 04/13/2010 |
| 7675967 | Training-while-working data communications A data communication transceiver, such as a PCM or xDSL modem, is operable in a training-while-working mode in which it both trains and communicates user data. In some embodiments, upon initiation of a data communication session, the transceiver operates in a startu... | 03/09/2010 |
| 7664171 | Uplink burst equalizing method in broad wide access system A method for uplink burst equalization in broad wide access system, using the form of combining pre-training and burst equalization, that is, before transmitting user data, training the equalizer, then starting transmitting user data, in which, the equalizer uses de... | 02/16/2010 |
| 7646806 | Double equalizer for multi-path rejection An apparatus for improved reception of a signal is described. The apparatus includes an equalizer that has at least two cascaded maximum-likelihood detectors and an adjustable delay unit. The equalizer and the adjustable delay unit are configured for adaptation in a... | 01/12/2010 |
| 7463678 | Equalization scheme for DSL receivers in presence of an under-sampled or over-sampled transmit IDFT A circuit and method is provided for reducing the effect of having potentially different sizes for an Inverse Discrete Fourier Transform (IDFT) at a transmitter and a Discrete Fourier Transform (DFT) at a receiver in a telecommunications system without requiring a c... | 12/09/2008 |
| 7450635 | Single antenna interference cancellation within a wireless terminal The present invention provides a multi-branch equalizer processing module operable to cancel interference associated with received radio frequency (RF) burst(s). This multi-branch equalizer processing module includes both a first equalizer processing branch and a se... | 11/11/2008 |
| 7443913 | High speed decision feedback equalizer An equalizer comprises a sampler, a filter, and a summer. The sampler samples a signal indicative of an input communication signal to determine digital decision output signals having a communication device data rate. The filter receives digital decision output signa... | 10/28/2008 |
| 7443914 | DFE to FFE equalization coefficient conversion process for DOCSIS 2.0 A method and appartus for converting FFE and FBE coefficients from a DOCSIS compatible cable modem termination system upstream equalizer into FFE only coefficients to be sent down to the cable modem which transmitted the training burst which resulted in convergence ... | 10/28/2008 |
| 7440410 | Off-line broadband network interface A network interface is presented that receives packet data from a shared medium and accomplishes the signal processing required to convert the data packet to host computer formatted data separately from receiving the data packet. The network interface receives the d... | 10/21/2008 |
| 7433418 | Method and apparatus for efficient storage of training sequences for peak to average power constrained modulation formats Some embodiments store a training sequence in a communications system. The stored training sequence exhibits certain desirable characteristics when used by a peak to average power constrained modulation format. In one embodiment, a set of original ordered sequences ... | 10/07/2008 |
| 7421021 | Adaptive signal equalizer with adaptive error timing and precursor/postcursor configuration control An adaptive signal equalizer with a feedforward filter in which the feedback error signal and corresponding incoming data signal are dynamically aligned in time using signal interpolation, and further, to control the precursor/postcursor filter taps configuration, t... | 09/02/2008 |
| 7421022 | Method for robust and stable convergence of blind LMS based adaptation of coefficients for a continuous time FFE-DFE A continuous time electronic dispersion compensation architecture using feed forward equalization and a non-linear decision feedback equalization forms an output signal by a linear combination of successively delayed versions of the input signal and the sliced outpu... | 09/02/2008 |
| 7418032 | Altering power consumption in communication links based on measured noise A method, circuit and system for altering the power consumption in communication links. A type of noise and an amount of jitter in a signal transmitted across a communication link is measured. Upon determining the contribution of the measured noise to the measured j... | 08/26/2008 |
| 7408982 | Equalizer for high definition television and equalization method thereof An equalizer and an equalization method usable in a high definition television (HDTV) are provided. The equalizer may receive an input signal including a data signal and a training sequence and may compensate for distortion of the input signal in a high definition t... | 08/05/2008 |
| 7406122 | Equalizer and method of setting initial value for same An equalizer is provided which is capable of making a filter factor to be set in the equalizer having an equalizing filter converge rapidly and a method is provided for setting an initial value for the rapid convergence of the filter factor. In the equalizer having ... | 07/29/2008 |
| 7400672 | Method and system for detecting transmitter errors A system for detecting transmission errors in a data transmission system includes a receiver for receiving a data packet transmitted thereto by a corresponding transmitter and transmitting the data packet to a destination device and an error detection device for rec... | 07/15/2008 |
| 7394849 | Decision feedback equalizer with dynamic feedback control A decision feedback equalizer with dynamic feedback control for use in an adaptive signal equalizer. Timing within the decision feedback loop is dynamically controlled to optimize recovery of the data signal by the output signal slicer. The dynamic timing is control... | 07/01/2008 |
| 7394753 | Training premable in multipoint-to-point communication using orthogonal frequency division multiplexing A training premable in multipoint-to-point communication using orthogonal frequency division multiplexing (OFDM) is provided. In one embodiment, a system comprises a host unit and a plurality of remote units using a multiple access scheme to communicate at the same ... | 07/01/2008 |
| 7388909 | Initialization method for a network system An initialization method for a network system is disclosed, which uses a channel estimation to predetermine coefficients of an FFE and an FBE. As such, convergence of the FFE, the FBE, a timing recovery, an echo canceller and a NEXT canceller is speeded up. Also, in... | 06/17/2008 |
| 7372825 | Wireless communications system with cycling of unique cell bit sequences in station communications A wireless communication system (10). The system comprises transmitter circuitry (BST1) comprising circuitry for transmitting a plurality of frames to a receiver in a first cell (Cell 1). Each of the plurality of frames comprises a bit group ( | 05/13/2008 |
| 7369607 | Multicarrier communication using a time domain equalizing filter Various methods and apparatus are described that use a filter. A receiver may be configured to receive multi-tone signals. The receiver has a Time Domain Equalizer filter employing an algorithm to shorten a length of an incoming impulse response to equal to or less ... | 05/06/2008 |
| 7369603 | Compensating for spectral attenuation A method and apparatus to compensate for spectral attenuation are described wherein the spectral attenuation for a communications channel is determined, a first filter is created for the attenuation and the first filter compensates for the attenuation. The spectral ... | 05/06/2008 |
| 7369833 | Method and apparatus for improving the directivity of an antenna A receive system, including special integrated circuits, for providing enhanced directivity in the form of a narrowed receive beam and a relatively small antenna with performance comparable to a much larger antenna at similar frequencies. Received signals are conver... | 05/06/2008 |
| 7369516 | Adaptive echo canceling A method for transmitting data signals in full duplex with echo cancellation between a first and a second modem connected by a two-wire channel, wherein a data signal is a function of at least one data symbol in a stream of data symbols generated by a modem comprisi... | 05/06/2008 |
| 7366475 | Signal strength measurements in cellular telecommunication systems A mobile station (MS) and method for estimating received signal strength of a radio signal from a neighboring cell in a cellular radio telecommunication network. The MS measures the received signal strength of the radio signal over a plurality of frames, and calcula... | 04/29/2008 |
| 7366232 | Method and device for the automatic selection of the bit rate in high frequency transmissions A method and device for determining at least one traffic parameter in a data transmission system including at least one transmitter and one receiver, wherein the receiver includes a modem with equalizer. The method includes determining at least one piece of data giv... | 04/29/2008 |
| 7362800 | Auto-configured equalizer An signal communication device having an auto-configured equalizer. The signal communication device includes a scoping circuit, buffer circuit, select circuit and equalizing circuit. A test signal is transmitted to the signal communication device via a signal path. ... | 04/22/2008 |
| 7363011 | Method and apparatus for estimating the impulse response of a radio channel based on a calculated correlation sequence A method and a correspondingly operative radio receiver (10) (in either user equipment or a base transceiver station of a cellular telecommunication system) by which the radio receiver (10), in receiving signals transmitted over a radio channel, estima... | 04/22/2008 |
| 7362803 | Method and system for interactive channel equalization A method and system for interactive channel equalization uses channel status information included in data packets. The system includes a first station adapted to transmit a first data packet including a channel status information segment over a radio communication c... | 04/22/2008 |
| 7349461 | Efficient back-end channel matched filter (CMF) An efficient method and apparatus for implementing a back-end channel matched filter in a receiver is disclosed. A typical channel matched filter embodiment includes a peak detector for establishing processing synchronization from a despread signal, a channel estima... | 03/25/2008 |
