Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-7,203,262 |
Methods and apparatus for signal modification in a fractional-N phase
locked loop system A phase locked loop includes a buffer that synchronizes the transmission of the new count value to the completion of the previous count to avoid errors caused by... |
| US-7,203,261 |
Phase locked loop for an OFDM system Techniques are provided for tracking residual frequency error and phase noise in an OFDM system. At a receiver, each received OFDM symbol is transformed with an... |
| US-7,203,260 |
Tracked 3X oversampling receiver A method of receiving data, in accordance with an embodiment of the present invention, includes the acts of generating a data sampling clock signal and comparing... |
| US-7,203,259 |
Phase interpolator An arrangement for generating a clock signal. Embodiments provide a method, apparatus, system, and machine-readable medium to interpolate phases of a reference... |
| US-7,203,258 |
Acquisition algorithm in asynchronous CDMA systems A method for the acquisition of synchronisation signals in a spread spectrum communication system includes:Receiving a synchronisation signal,Applying to said... |
| US-7,203,257 |
Best linear unbiased channel estimation for frequency selective multipath
channels with long delay spreads A channel impulse response for a channel is determined by determining an initial channel impulse response estimate based upon a stored training sequence and a... |
| US-7,203,256 |
Ethernet channel estimation device and method The apparatus for communication channel estimation device of the present invention includes: a frequency response square computing circuit, to generate a first... |
| US-7,203,255 |
Method and system to implement non-linear filtering and crossover
detection for pilot carrier signal phase tracking Systems and methods for correcting phase ambiguity in a total pilot phase value are presented. Examples include comparing and correcting total pilot phase values... |
| US-7,203,254 |
Method and system for synchronizing in a frequency shift keying receiver The invention provides a method and apparatus for achieving timing synchronization during signal acquisition and for achieving frequency synchronization in a... |
| US-7,203,253 |
Method and apparatus of cross-correlation Briefly, a method and apparatus to calculate cross-correlation values of complex binary sequences are provided. The apparatus may include a transformation unit... |
| US-7,203,252 |
Minimum variance unbiased and moment estimators of carrier frequency
offset in multi-carrier systems A class of non data-aided cyclic based robust estimators for frequency offset estimation of multi-carrier systems is disclosed. The use of sufficient statistics... |
| US-7,203,251 |
Apparatus for compensating phase of receiver and method thereof The present invention provides an apparatus for compensating a phase difference of a receiver, the apparatus including: an accumulating unit for accumulating a... |
| US-7,203,250 |
Frequency analysis method and apparatus, and spectrum spreading
demodulation method and apparatus A method for performing frequency analysis by executing discrete Fourier transform with a smaller capacity of a memory than in usual FFT processing, without... |
| US-7,203,249 |
Spatio-temporal processing for communication A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or... |
| US-7,203,248 |
Impairment sensitive selection of constellation points for communication
across a channel An impairment compensation sequence for use in a communications system susceptible to one or more potential impairments each periodic in an integer number of... |
| US-7,203,247 |
Digital predistortion technique for WCDMA wireless communication system
and method of operation thereof A Wideband Code-Division Multiple Access (WCDMA) transceiver and a method of operating the same. In one embodiment, the transceiver includes: (1) a transmit... |
| US-7,203,246 |
Method of estimating a channel, and a radio system The invention relates to a method of estimating a downlink channel in a radio system, and to a radio system. The method includes transmitting a common pilot... |
| US-7,203,245 |
Symbol boundary detector method and device for OFDM systems The present invention relates to the field of data communication electronics and to a wired or wireless signal transmitter or receiver and methods providing... |
| US-7,203,244 |
COFDM demodulator with an optimal FFT analysis window positioning A COFDM demodulator or analogue comprising a fast Fourier transform circuit analyzing a received signal in a window corresponding to a symbol, each symbol... |
| US-7,203,243 |
Line driver with reduced power consumption A means for reducing the power consumption of the transmitter by storing the recent history of the transmitted data using a string of gates with taps from the... |
| US-7,203,242 |
Code rate adaptive encoding/decoding arrangement and method for a pulse
code modulation system A code rate adaptive encoding/decoding arrangement and method for a pulse code modulation system comprises a code rate adaptor and a code capacity meter to... |
| US-7,203,241 |
Methods and apparatus for adaptive PCM level estimation and constellation
training Systems compensate for the presence of digital impairments using adaptive constellation techniques. Sample magnitudes are estimated from received samples... |
| US-7,203,240 |
Method of recovering clock signal using user clock code in TDM digital
video signal and transmitting/receiving... A clock recovery method for a TDM digital video signal and a transmitting/receiving apparatus for the clock recovery method are disclosed. A transmitter inserts... |
| US-7,203,239 |
Variable-length decoding apparatus and decoding method Encoded data using reversible variable length code words is input to a forward decoder (123) to be decoded in the forward direction. When an error is detected in... |
| US-7,203,238 |
3:2 Pull-down detection In one embodiment, a 3:2 pull-down detection component of a video encoder uses motion vectors to determine whether a repeated field exists in a video sequence.... |
| US-7,203,237 |
Transcoders and methods Transcoding as from MPEG-2 SDTV to MPEG-4 CIF reuses motion vectors and downsamples in the frequency (DCT) domain with differing treatments of frame-DCT and... |
| US-7,203,236 |
Moving picture reproducing device and method of reproducing a moving
picture A moving picture reproducing device includes a compressed data buffer, a display size obtaining unit, a resolution selecting unit, four kinds of resolution... |
| US-7,203,235 |
Architecture and method for fine granularity scalable video coding A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images... |
| US-7,203,234 |
Method of directional filtering for post-processing compressed video A method of post-processing decompressed images includes identification of the direction of an image edge in a pixel block of the image and filtering applied... |
| US-7,203,233 |
Adaptive coefficient signal generator for adaptive signal equalizers with
fractionally-spaced feedback An adaptive coefficient signal generator for use in an adaptive signal equalizer with fractionally-spaced feedback. The signals representing the feedback tap... |
| US-7,203,232 |
Apparatus and method for adjusting filter tap length of adaptive equalizer
by using training sequence An apparatus and method for adjusting the filter tap length of an adaptive equalizer using a training sequence, determining a required filter tap length by using... |
| US-7,203,231 |
Method and device for block equalization with improved interpolation A method and device to equalize a signal received by a receiver after having traveled through a transmission channel, the signal including one data block and... |
| US-7,203,230 |
Method and system for training adaptive channel equalization The invention relates to implementing a training phase of adaptive channel equalization on a digital communications path using QAM- or CAP-modulation method and... |
| US-7,203,229 |
Apparatus for and method of measuring jitter A signal under measurement is band-limited, and frequency components around a fundamental frequency of the signal under measurement are extracted. Waveform data... |
| US-7,203,228 |
Method and apparatus for assigning addresses to components in a control
system A method and an apparatus for remotely controlling locomotives in a railway environment using radio frequency signals are provided. A remote operator programming... |
| US-7,203,227 |
All digital reference frequency locking All digital reference frequency locking. An all digital approach is provided for operation within one or more CMs within a cable modem communication system to... |
| US-7,203,226 |
Methods and apparatus for data communication A communication apparatus having a communication interface for communicating with a first remote entity, the first remote entity including a decoder capable of... |
| US-7,203,225 |
Method of phase controlling of a data signal, counter clock circuit
arrangement, and interface device The invention relates to a method of phase controlling a data signal transmitted from a data source to a data sink using a counter clock approach, wherein the... |
| US-7,203,224 |
Isolation system with digital communication across a capacitive barrier An isolation system is provided that is suitable for use in telephony, medical instrumentation, industrial process control and other applications. Preferred... |
| US-7,203,223 |
Method of radio channel simulation and channel simulator The invention relates to a method of performing channel simulation and a channel simulator. The channel simulation is performed digitally. At least a section of... |
| US-7,203,222 |
Multiplexed ADC for a transceiver A transceiver used in a communications system includes a transmitter having a transmit input that is split into a transmit I component and a transmit Q... |
| US-7,203,221 |
Load balancing computational methods in a short-code spread-spectrum
communications system The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and... |
| US-7,203,220 |
Method and rake receiver for code-tracking in communication systems The invention relates to a code-tracking method and a rake receiver for CDMA communication systems of low complexity yielding stable tracking. Received signal... |
| US-7,203,219 |
Transmitter optical sub assembly, for instance for high speed optical
transceivers A transmitter optical sub assembly includes a laser source having associated therewith a laser driver and a package for housing the laser source (10) and the... |
| US-7,203,218 |
Solid-state laser device A solid-state laser device, comprising two or more resonators for outputting laser beams on a same axis, a first light emitter and a second light emitter for... |
| US-7,203,217 |
Narrow band electric discharge gas laser having improved beam direction
stability An electric discharge, narrow band gas laser with improvements in wavelength stability. Improvements result from reduced laser beam directional fluctuations or... |
| US-7,203,216 |
Timing control for two-chamber gas discharge laser system Feedback timing control equipment and process for an injection seeded modular gas discharge laser. A preferred embodiment is a system capable of producing high... |
| US-7,203,215 |
Semiconductor laser device, semiconductor laser module, and optical fiber
amplifier A semiconductor laser device includes a layer structure of a first conductive cladding layer, an active layer, and a second conductive cladding layer... |
| US-7,203,214 |
Off-peak optical pumping of yttrium orthovanadate A laser includes an Nd:YVO4 crystal end-pumped with diode-laser light having a wavelength at which the absorption coefficient for Nd:YVO4 is less than about 0.35... |
| US-7,203,213 |
Laser turn-on accelerator independent of bias control loop bandwidth An accelerator circuit is incorporated in a laser diode system for accelerating the turn-on operation of the laser diode independent of the control loop... |
Copyright 2008−2012 Patents.com
