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Calibrating an RF transmitter
A method for calibrating a radio frequency (RF) transmitter begins by mixing a modulated RF signal with an in-phase (I) component of a local oscillation or a...
Switchboard for dual-rate single-band communication system
A switchboard device and methods of operation of same are disclosed. Embodiments of the invention may provide a flexible means of interconnecting wideband and...
System and method for DC offset compensation and bit synchronization
A system and method for compensating for DC offset and/or clock drift on a wireless-enabled device is described. One embodiment includes a radio module, an A/D...
Super-orthogonal space-time trellis codes, and applications thereof
A super set of orthogonal space-time block codes is combined with set partitioning to form super-orthogonal space-time trellis codes having full diversity,...
Parallel concatenated code with soft-in-soft-out interactive turbo decoder
A method for parallel concatenated (Turbo) encoding and decoding. Turbo encoders receive a sequence of input data tuples and encode them. The input sequence may...
Integrated radio circuit having multiple function I/O modules
An integrated radio circuit includes a receiver section, a transmitter section, an analog to digital converter section, a digital to analog converter section, a...
Upstream adaptive modulation in DOCSIS based applications
A system and method for providing upstream adaptive modulation. Burst parameters associated with a range of data interval usage codes (IUCs) are defined. Each of...
Method and system for mixed analog-digital automatic gain control
Aspects of the invention provide a method and system for a mixed analog-digital automatic gain control. The received analog signal is amplified by the analog...
Low noise variable gain amplifier
The present invention provides systems and methods for asymmetrically varying gain in a low noise amplifier. The amplifier includes a first stage amplifier, a...
Variable code rate and signal constellation turbo trellis coded modulation
Variable code rate and signal constellation turbo trellis coded modulation (TTCM) codec. The decoding can be performed on signals whose various symbols have been...
Bit error concealment methods for speech coding
A system and method of concealing bit errors in a signal are provided. An exemplary method detects bit errors in an input signal having at least a current signal...
Wireless network card with antenna selection option
A wireless network card includes an adaptable antenna connection structure that includes connections for one or more internal antennas and for one or more Radio...
Multi-band DMT receiver
There is disclosed a receiver for receiving a multi-band DMT signal. The receiver includes a plurality of demodulators, each demodulator having a discrete...
System and method to identify a modulation format of a data frame within a
cellular wireless network
The modulation format of a data block (frame) received from a servicing base station by a wireless terminal in a cellular wireless communication system is...
Channel select filter and applications thereof
A channel select filter having channel equalization includes a first low pass filter stage, a gain stage, a subtraction module, and a second low pass filter...
Method and apparatus for reducing signal processing requirements for
transmitting packet-based data
A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel. This analog signal includes both packet and idle...
Method of sharing information among a plurality of stations in a
frame-based communications network
A method of sharing information among a plurality of stations on a communications network, each of the stations being capable of transmitting and receiving...
Method for determining read/write head position based on phase detection
of a servo pattern
A method determines RW head radial position relative to tracks within a magnetic data disc. This involves sensing both a S-burst signal and a P-burst signal with...
Frequency, phase, and gain estimation technique for use in a read channel
receiver of a hard disk drive
One or more methods and systems are presented for performing gain and timing acquisition of data read from one or more data sectors of a hard disk drive. The...
Method and system for 3D comb synchronization and alignment of standard
and non-standard video signals
In a method and system for 3D comb synchronization and alignment of standard and non-standard video signals, a coarse synchronization is performed on a bottom...
Frequency synthesizer with improved spurious performance
A loop filter for use in a frequency synthesizer provides improved spurious performance using switched capacitors. The loop filter includes a first switched...
Ball grid array package substrates with a modified central opening and
method for making the same
An electrically and mechanically enhanced die-down tape substrate ball grid array (BGA) package substrate is described. An IC package includes a substrate that...
System and method for data transfer between multiple processors
A system and method are provided for increasing the number of processors on a single integrated circuit to a number that is larger than would typically be...
Galois field multiplier array for use within a finite field arithmetic
A Galois field multiplier array includes a 1.sup.st register, a 2.sup.nd register, a 3.sup.rd register, and a plurality of multiplier cells. The 1.sup.st...
Interpolation filter design and application
A method for designing an interpolation filter begins by partitioning interpolation filtering into a plurality of interpolation filtering stages that are...
Methods and apparatus for accelerating ARC4 processing
Methods and apparatus are provided for improving ARC4 processing in a cryptography engine. A multiple ported memory can be used to allow pipelined read and write...
Dual mode QAM/VSB receiver
A television receiver system capable of receiving and demodulating television signal information content that has been modulated and transmitted in accordance...
Robust burst detection and acquisition system and method
A method of parameter estimation in a shared channel communications system includes the steps of receiving a preamble including a first sequence corresponding to...
System for interfacing media access control module to small form factor
A communication system includes a link module having a first serial interface for interfacing to a serial link. The link module also including a second serial...
VoIP WLAN conference calling via home wireless routers
A home wireless router establishes a Wireless Local Area Network (WLAN) and services a plurality of wireless terminals within the WLAN service area including at...
Efficient routing of packet data in a scalable processing resource
According to the present invention, the multiple processor device determines routing for a plurality of data segments. In determining the routing, the multiple...
Wireless local area network device supporting enhanced call functions
A wireless local area network (WLAN) transceiving integrated circuit services voice communications in a WLAN with at least one other WLAN device and includes a...
Techniques for enabling a 10BT active output impedance line driver using a
low power supply
A line driver for generating 10 BT signals is disclosed. Digital symbols to be transmitted via a 10 BT Ethernet line are converted by a digital-to-analog...
Enhanced die-down ball grid array and method for making the same
An apparatus, system, and method for assembling a ball grid array (BGA) package is described. A stiffener/heat spreader is provided. A substrate has a first...
Amplifying magnitude metric of received signals during iterative decoding
of LDPC (Low Density Parity Check)...
Amplifying magnitude metric of received signals during iterative decoding of LDPC code and LDPC coded modulation. By appropriately selecting a metric coefficient...
Methods and apparatus for performing hash operations in a cryptography
Methods and apparatus are provided for implementing a cryptography accelerator for performing operations such as hash operations. The cryptography accelerator...
Transmission of wide bandwidth signals in a network having legacy devices
A method for transmitting wide bandwidth signals in a network that includes legacy devices begins by determining channel bandwidth of a channel that supports the...
System and method for a generalized packet header suppression mechanism
A system and method for a generalized packet header suppression mechanism is described. This mechanism is implemented via a descriptor table. An exact copy of...
Method for determining when a communication device should rate shift or
roam in a wireless environment
Methods for improving communication performance in a wireless communication system where the wireless communication system has at least one mobile wireless...
Circuit with Q-enhancement cell having feedback loop
According to an example embodiment, an amplitude feedback loop may include an RF amplifier, a detector, a comparator, and a Q-enhancement cell. In an example...
Inductor-tuned buffer circuit with improved modeling and design
According to one exemplary embodiment, an inductor-tuned buffer circuit includes at least one input transistor for receiving a time varying input signal, where...
Method and system for determining a signal quality metric in event of a
CRC false positive
Certain aspects of determining a signal quality metric in event of a CRC false positive may comprise measuring an amplitude and/or phase of at least a portion of...
One shot RDMA having a 2-bit state
A system and method for managing memory resources in a system that allows remote direct access of memory. An aspect of the invention provides for automatically...
Efficient implementation of a filter
A Finite Impulse Response (FIR) filter is implemented in software on a general purpose processor in a manner which reduces the number of memory accesses as...
Loop filter with gear shift for improved fractional-N PLL settling time
An integrated circuit radio frequency (RF) transmitter includes a phase locked loop having a multi-mode loop filter that is operable to provide wide band...
Direct conversion RF transceiver for wireless communications
A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down converted to base band frequencies and base band signals...
Implementation technique for linear phase equalization in multi-mode RF
The present invention implements an architecture that changes the sequence of digital processing so that equalization occurs prior to phase accumulation. A phase...
Impairment compensation sequence for communication
An impairment compensation sequence for use in a communication system susceptible to one or more potential impairments each periodic in an integer number of...
Method and system for data placement of out-of-order (OOO) TCP segments
Certain aspects of the invention provide handling out-of-order TCP segments and may include placing a first received segment in a host buffer and determining...
Method and system for cross-chrominance removal using motion detection
In a video system, a method and system for cross-chrominance removal using motion detection are provided. A luma motion detector in a motion adaptive...