At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.
Low-speed DLL employing a digital phase interpolator based upon a
A low-speed DLL facilitates a deskewed interface between a high-speed RX data demultiplexer circuit directly to an Application Specific Integrated Circuit (ASIC)...
Method and apparatus for performing accelerated authentication and
decryption using data blocks
Methods and apparatus are provided for performing authentication and decryption operations. A record including multiple encrypted blocks is received. An...
System and method for detecting a device requiring power
A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector...
On-chip loop filter for use in a phase locked loop and other applications
A phase locked loop that includes such a loop filter, the phase locked loop includes a difference detector, programmable charge pump, fixed loop filter, voltage...
Adaptive radio transceiver with CMOS offset PLL
An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local...
Reduced instruction set baseband controller
In wireless communications such as in the Bluetooth communication system, an execution unit sequentially receives software instructions for execution. Prior to...
Linearized fractional-N synthesizer with fixed charge pump offset
A linearized oscillation synthesizer includes a phase and frequency detection module, charge pump circuit, low pass filter, voltage control oscillator, and a...
Voice and data exchange over a packet based network with DTMF
A method and system for detecting a dual tone in a composite signal having first and second components including means for separating the composite signal into...
Apparatus and method for enabling voice over IP support for a network
An apparatus and method for switching VOIP packets in a data network, wherein the method includes the steps of receiving a first packet in a network switch and...
Memory module with hierarchical functionality
A hierarchical memory structure having memory cells, and sense amplifiers and decoders coupled with the memory cells to form first tier memory module, and...
Adjustable bandwidth high pass filter for large input signal, low supply
Often programmable gain attenuators (PGAs) are combined with high pass filters. Adjustment of the highpass filter however can have unintended effects, such as...
Modular, portable data processing terminal for use in a radio frequency
Modular, portable data collection terminals are disclosed for use in mixed wireless and hard-wired RF communication networks, wherein various radio transmitter...
Forward error corrector
A method for decoding an algebraic-coded message including determining a discrepancy indicator; determining an error locator polynomial according to a modified...
Methods and systems for detecting symbol erasures
A technique for determining a symbol erasure threshold for a received communication signal containing symbol information is disclosed. The technique begins by...
Data access in a processor
A data processor comprising: a register memory comprising an array of memory cells extending in two dimensions, the cells being located on rows in the first...
System and method for arbitrating clients in a hierarchical real-time DRAM
Systems and methods are disclosed for arbitrating requests from a plurality of clients requesting access to a shared real-time resource. In one embodiment, a...
Low-error canonic-signed-digit fixed-width multiplier, and method for
An error compensation bias circuit and method for a canonic signed digit (CSD) fixed-width multiplier that receives a W-bit input and produces a W-bit product....
Programmable mutlistage amplifier and radio applications thereof
A programmable multi-stage amplifier includes a 1.sup.st programmable amplifier, a 2.sup.nd programmable amplifier, and a control module. The 1.sup.st and...
On chip diversity antenna switch
An on chip diversity antenna switch includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is operably coupled to a pin...
System and method of performing digital multi-channel audio signal
A system and method are disclosed for performing digital multi-channel decoding of a BTSC composite audio signal. Analog-to-digital conversion is performed on a...
Multi-mode quadrature amplitude modulation receiver for high rate wireless
personal area networks
A wireless transceiver includes a Radio Frequency (RF) transceiver, a baseband transmitter section, and a baseband receiver section. The baseband receiver...
Radio receiver having direct DC offset compensation
An FM radio receiver includes a low noise amplifier, down conversion mixing module, local oscillation module, bandpass filter, demodulation module, and a DC...
Method and circuits for power management in a transceiver
A transceiver circuit having 10 mb and 100 mb transmit and receive circuitries using the power saving methods allows for power consumption of the transceiver...
Powering down of DAC and ADC for receive/transmit modes of operation in a
A digital-to-analog converter (DAC) disposed in a data transmission path to convert data from a digital format to an analog format to be transmitted is powered...
V.42bis standalone hardware accelerator and architecture of construction
Methods and systems for on-chip processing of data are disclosed. Aspects of the method may include generating a plurality of data processing commands for data...
Series terminated CMOS output driver with impedance calibration
A differential line driver includes a plurality of driver cells. Control logic outputs positive and negative control signals to the driver cells so as to match a...
Coupling of signals between adjacent functional blocks in an integrated
A modifiable circuit for coupling at least two adjacent logic blocks in an integrated circuit chip is disclosed. The chip includes a plurality of metal layers...
IC die support structures for ball grid array package fabrication
A system and method of assembling a ball grid array (BGA) package with IC die support is described. A stiffener is attached to a substrate that includes a...
Default bus grant to a bus agent
A system may include two or more agents, one of which may be identified as a default agent. If none of the agents arbitrate for the bus, the default agent may be...
Bus precharge during a phase of a clock signal to eliminate idle clock
A system includes a bus and a circuit for precharging the bus. The circuit may be coupled to receive a clock signal associated with the bus, and may be...
Method and apparatus for DC offset cancellation
A radio transceiver includes amplification circuitry that is coupled to receive a down converted signal and to provide infinite rejection of any DC component...
Variable gain amplifier for low voltage applications
An integrated communications system. Comprising a substrate having a receiver disposed on the substrate for converting a received signal to an IF signal. Coupled...
Apparatus, method and software for call-waiting tone detection
Reliable detection of a call-waiting tone is provided by employing a correlation based technique. A modem or other device employing such a technique need not...
Digital connection detection technique
A technique is described for reliably determining whether a direct digital connection exists between a transmitting server modem and a receiving client modem....
A Multi-tone transmission system processes input data through a plurality of intermediate processing stages 12, 14, 16 and corresponding stages of intermediate...
Flexible header protocol for network switch
A data switch for network communications includes a first data port interface which supports at least one data port which transmits and receives data. A second...
System and method for dynamically regulating voltage in a wireless
interface device while maintaining an...
A method and apparatus for dynamically managing power in a wireless interface device while maintaining an acceptable bit error rate. The wireless interface...
System and method for interleaving data in a communications device
A system and method is provided for interleaving data in a communications device. The system includes a memory for storing symbols of a data block, a read module...
Method and apparatus for performing a binary search on an expanded tree
A method and apparatus for searching an electronically stored table of information including a plurality of table entries and facilitating high speed searching...
Double-conversion television tuner using a Delta-Sigma Fractional-N PLL
A double-conversion tuner receives an RF signal having a number of channels and down-converts a selected channel from the plurality of channels. The...
Adjustment of transmit power based on an estimated electrical length of a
To adjust transmit power of a DSL modem, an estimated electrical length of a loop is first determined when a 1.sup.st DSL modem at a 1.sup.st location transmits...
Method of sending packets between trunk ports of network switches
The present invention is directed to a system and method of sending packets between ports on trunked network switches. A trunk connection is provided between...
Video and graphics system with parallel processing of graphics windows
A display engine of a video and graphics system includes one or more processing elements and receives graphics from a memory. The graphics data define multiple...
Unique method for performing zoom-in and zoom-out operations with
horizontal and vertical video decimation...
A method of presenting a selected portion of graphical images within a wireless terminal that includes receiving an original graphical image, having a source...
System and method for noise cancellation in a signal processing circuit
A system and method for noise cancellation in a signal-processing circuit (e.g., an analog-to-digital converter circuit). Various aspects of the present...
Method and system for a glitch-free differential current steering switch
circuit for high speed, high...
Provided are a method and system for reducing glitch in a switch circuit. A system includes a current-steering switch circuit including a main differential pair...
Analog to digital converter
A circuit is provided for reducing mismatches between the outputs of successive pairs of cells in an analog to digital converter. A voltage input means is...
High performance switch for switched inductor tuned RF circuit
A Radio Frequency (RF) circuit includes an active portion and a tuned portion. The active portion receives an RF signal and that operates upon the RF signal. The...
Printed bandpass filter for a double conversion tuner
A printed bandpass filter is mounted on a precision substrate to eliminate the need for post-fabrication tuning. The filter input is capacitively coupled to a...
Method and system for a differential switched capacitor array for a
voltage controlled oscillator (VCO) or a...
Methods and systems for increasing an amplifier circuit's Q factor are disclosed herein. The method may comprise coupling a first LC tank to a source of a single...