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Assignee: Conexant, Inc.


Location: Red Bank, NJ
No. of patents: 45

1    
NumberTitleIssue Date
7580379Technique for dynamic bin allocation
A technique for dynamic bin allocation is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for dynamic bin allocation. The method may comprise obtaining link performance data based on a plurality of test transmissions betw...
08/25/2009
7400710MIMO dynamic PSD allocation for DSL networks
A system and method for multiple inputs, multiple outputs (MIMO) PSD allocation in a DSL system is disclosed. In some embodiments, the method may comprise monitoring system performance by performing a multi-ended line test (MELT), processing the MELT and allocating ...
07/15/2008
7400621Technique for achieving connectivity between telecommunication stations
A technique for enabling a secure, point-to-point wireless connection between a secondary computer (e.g., a personal digital assistant, etc.) and a primary computer (e.g., a notebook, a desktop, etc.) is disclosed. The primary computer is associated with an extended...
07/15/2008
7400640Partitioned medium access control implementation
A novel implementation of a partitioned medium access control (MAC) is disclosed. The illustrative embodiment employs a shared bus that typically is already present in a wireless terminal for communication between an upper MAC and a lower MAC. The partitioned MAC im...
07/15/2008
7394864Mixed waveform configuration for wireless communications
A mixed waveform configuration for wireless communications including a first portion that is modulated according to a single-carrier modulation scheme and a second portion that is modulated according to a multi-carrier modulation scheme. The waveform is specified so...
07/01/2008
7388903Adaptive transmission rate and fragmentation threshold mechanism for local area networks
An apparatus for adjusting the transmission bit rate and fragmentation threshold of a wireless station in response to transmission errors is disclosed. In particular, the illustrative embodiment of the present invention is based on a wireless station that employs bo...
06/17/2008
7373172Multi-protocol interchip interface
An interface between radios supporting different air interfaces is disclosed that avoids some of the costs and disadvantages associated with inter-radio interfaces in the prior art. The present invention enables the needed coordination across multiple wireless proto...
05/13/2008
7369485Wireless receiver for sorting packets
A wireless receiver that sorts packets including a packet detector, multiple correlators, and multiple packet processors. Each correlator correlates a received signal according to packet type. Each packet processor processes the received signal according to packet t...
05/06/2008
RE40231High data spread spectrum transceiver and associated methods
A spread spectrum radio transceiver includes a high data rate baseband processor and a radio circuit connected thereto. The baseband processor preferably includes a modulator for spread spectrum phase shift keying (PSK) modulating information for transmission via th...
04/08/2008
7352805Systems and methods for adaptive VDSL with variable sampling frequency and time-domain equalizer
A method and system for enhancing reach-performance of a multi-carrier VDSL System estimates loop length, estimates maximum available bandwidth that can be utilized at that particular loop length, optimally selects an FFT size and sampling rate, and decides whether ...
04/01/2008
7343011Secure telecommunications system for wireless local area networks
A security mechanism suitable for wireless local area networks is disclosed that exhibits a reasonable trade-off between computation speed and resistance to attack. The illustrative embodiment can be implemented with operations that are quickly performed on most pro...
03/11/2008
7324612Carrier tracking circuit and method including dual numerically controlled oscillators and feedforward phase correction coefficient
A carrier tracking circuit includes a first phase adjustment circuit coupled to an input of a delay element and a second phase adjustment circuit coupled to an output of the delay element. A phase correction circuit is coupled to output of the delay element is opera...
01/29/2008
7313121Acknowledging data transmissions in the presence of multiple shared-communications channels
A technique is disclosed that improves the efficiency of transmitting data over multiple shared-communications channels without some of the costs and disadvantages associated with techniques in the prior art. In particular, and in accordance with the illustrative em...
12/25/2007
7274652Dual packet configuration for wireless communications
A dual packet configuration for wireless communications including a first portion that is modulated according to a serial modulation and a second portion that is modulated according to a parallel modulation. The serial modulation may be DSSS whereas the parallel mod...
09/25/2007
7263109Clock skew compensation for a jitter buffer
A method and system to minimize the potential of jitter buffer underflow/overflow resulting from a difference in sampling rates of an audio encoder and an audio decoder are disclosed herein. The difference in sampling rates, or clock skew, can be determined from a d...
08/28/2007
7254373Antenna diversity based on packet errors
A wireless transceiver including multiple antennas, an antenna switch, and a media access controller that controls the antenna switch for determining when to switch to another antenna based on packet error rate (PER). Instead of switching the antenna on a packet-by-...
08/07/2007
7251235Event-based multichannel direct link
Disclosed herein are exemplary techniques for the communication of information in a wireless system by using multiple wireless channels. A direct link between two or more wireless devices may be established by performing a direct link setup between two or more wirel...
07/31/2007
7212595Reduced complexity time-frequency trained equalizer for discrete multi-tone based DSL systems
The present invention provides a system and method for implementing a new TEQ training approach that trains TEQ coefficients by exploiting both time-domain and frequency-domain information. An advantage of this technique is that it reduces memory usage due to the tr...
05/01/2007
7212512Frequency correction system for a wireless device communicating in a wireless local area network
A wireless transceiver including an oscillator, a radio, a baseband processor and MAC device that performs apiori frequency offset correction. The radio converts between RF signals and baseband signals. The baseband processor includes a frequency correction loop, an...
05/01/2007
7203198System and method for switching asynchronous transfer mode cells
One embodiment of a method for switching ATM cells using Early Packet Discard and Partial Packet Discard is provided. Initially, a first cell of an AAL5 packet is received at an input port. Next, it is determined whether there is likely to be enough buffering availa...
04/10/2007
7190731System and method for applying transmit windowing in ADSL+networks
A system and method for formatting and transmitting DMT symbols. For each symbol to be transmitted, the last Lcp samples of the symbol are prepended to the symbol as a cyclic prefix. Next, of the samples contained within the cyclic prefix, the first Î
03/13/2007
7173988Adaptive phase and gain imbalance cancellation
A method of canceling gain and phase imbalance including estimating a cancellation parameter based on the signal divided by its complex conjugate, calculating a correction value for the signal using the cancellation parameter, and correcting the signal by subtractin...
02/06/2007
7170880Sample rate change between single-carrier and multi-carrier waveforms
A Baseband transmitter for a radio frequency (RF) communication device according to an embodiment of the present invention includes a single-carrier processor, a pulse shape filter, a multi-carrier processor and a signal combiner. The single-carrier processor genera...
01/30/2007
7162507Wireless network site survey tool
A tool for providing a site survey of a wireless network. In one embodiment the tool includes a network server, a plurality of access points and a mobile client. The network server is used to create and distribute data packets. The plurality of access points are cou...
01/09/2007
7161987Single-carrier to multi-carrier wireless architecture
A Baseband receiver including a CIR estimate block, gain, phase and timing loops, a CMF, a single-carrier processor and a multi-carrier processor. The CIR estimate block generates an impulse response signal based on a receive signal that is a single-carrier signal o...
01/09/2007
7154895System, apparatus, and method for ATM header compression for DSL links
A system and method for ATM header compression for DSL links is provided. One embodiment, among others, for compressing ATM headers for communication across an ATM network involves transmitting an initial full ATM header to a receiver in the ATM network. Thereafter,...
12/26/2006
7142595System and method for decreasing cross-talk effects in time-domain-modulation (TDM) digital subscriber line (DSL) systems
A communications system may be characterized by a system error variance because the error variance provides an indication of signal corruption in the system. By strategically adding a secondary sensor to the communications system, system characteristics may be alter...
11/28/2006
7136423Side tones packets injection (STPI) for PAR reduction
A method and system for reducing the power to average ratio (PAR) at the transmitter after the up sampling and interpolation filter. In the time domain, Side Tone Packets Injection (STPI) system and method detects the optimal peaks that will result in having a low P...
11/14/2006
7120211Adaptive RFI canceller for DSL
Disclosed herein are various mechanisms for the adaptive cancellation of radio frequency interference (RFI) in Discrete Multitone (DMT)-based signal transmissions systems. various mechanisms for the adaptive cancellation of radio frequency interference (RFI) in Disc...
10/10/2006
7117321System and method for interleaving SDRAM device access requests
A method and system is provided for interleaving multiple cycles streams from clients seeking SDRAM access. More particularly, a master scoreboard register is established for enabling the interleaving of many clients SDRAM access requests into a single stream optimi...
10/03/2006
7113491Method and system for varying an echo canceller filter length based on data rate
The present invention provides methods and systems for providing efficient use of available CPU cycles that may be achieved by reducing the length of the echo canceller filter. An echo canceller's adaptive algorithm may be implemented to reach a lower mean squared e...
09/26/2006
7106860System and method for executing Advanced Encryption Standard (AES) algorithm
A system and method is presented for enciphering information using the Advanced Encryption Standard (AES) algorithm in which a subprocessor is configured to manipulate data as it is being loaded into the subprocessor memory. Thus, unlike implementations in the prior...
09/12/2006
7103112Transmit frequency domain equalizer
A transmit processor that includes a transmit frequency domain equalizer (TX FEQ) that pre-compensates packets in the frequency domain to flatten transmit filter response to improve the spectral mask and reduce packet error rate (PER). The TX FEQ taps may be selecte...
09/05/2006
7103097System and method for reducing peak-to-average ratio (PAR) values
A system and method for reducing peak-to-average ratio (PAR) values in signal transmission systems is presented. The presented approach divides a plurality of symbols into a number of non-overlapping subsets of symbols, and manipulates each of the non-overlapping su...
09/05/2006
7103008Communications system using rings architecture
Systems and methods are provided for implementing: a rings architecture for communications and data handling systems; an enumeration process for automatically configuring the ring topology; automatic routing of messages through bridges; extending a ring topology to ...
09/05/2006
7076514Method and system for computing pre-equalizer coefficients
According to an embodiment of present invention, an algorithm for computing static pre-equalizer coefficients, comprises the steps of determining a length of algorithm iterations; calculating a feedforward coefficient vector associated with a feedforward equalizer; ...
07/11/2006
7069328System and method to interface a local area network with a wide area network
A system that provides a multi-drop local area network (LAN) data transfer with devices on a wide area network (WAN) via a communication network is disclosed. Two methods for managing data traffic flow between individual nodes on a LAN and a WAN are also disclosed. ...
06/27/2006
7068987Packet acquisition and channel tracking for a wireless communication device configured in a zero intermediate frequency architecture
A method of controlling operation of a wireless device configured in a zero intermediate frequency architecture including a DC loop and a gain loop. The method includes processing energy in a wireless medium to generate a corresponding receive signal, monitoring the...
06/27/2006
7068780Hybrid echo canceller
Systems and methods for reducing transmit echo in a transceiver are disclosed. A hybrid echo canceller includes a limited tap length FIR filter to cancel short-term echo, while an interpolated filter is used to cancel the long-tail echo. The limited tap length FIR f...
06/27/2006
7068592System and method for increasing payload capacity by clustering unloaded bins in a data transmission system
A system and method for increasing payload in a data transmission system. In architecture, the system comprises a modulation device configured to modulate data bins to produce bin-clusters, a mechanism to load the bin-clusters with data, a transmitter configured to ...
06/27/2006
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