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| Patent # | Description |
|---|---|
| US-7,409,018 |
Automatic gain controller outputting control value varying nonlinearly,
and a method of outputting a gain... An automatic gain controller having an estimator to estimate the level of an input signal, a subtractor to calculate a difference between the level estimated by... |
| US-7,409,017 |
Signal separator A signal separator for separating multiple signals contained in a received signal from each other based on a replica of the received signal is provided. The... |
| US-7,409,016 |
Efficient conjugate gradient based channel estimator In forming a current channel estimate from a received signal y, the received signal y is decoded to form data s, a convolution matrix Sis formed from a first... |
| US-7,409,015 |
Adaptive modulation scheme based on cutoff rate with imperfect channel
state information A cutoff rate may be used to determine an optimal binary input distribution for a communications system which operates with imperfect receiver channel state... |
| US-7,409,014 |
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... |
| US-7,409,013 |
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,... |
| US-7,409,012 |
Modulator and signaling method Phase shift key modulators (100, 500, 1000, 1400, 1700) are provided in which a multiphase signal source (108, 1402, 1406-1412,1702) is used to generate a... |
| US-7,409,011 |
Systems and methods for the dynamic range compression of multi-bearer
single-carrier and multi-carrier waveforms The present invention is related to methods and apparatus that can advantageously reduce a peak to average signal level exhibited by single or by multicarrier... |
| US-7,409,010 |
Method and system for transmitting signals with reduced spurious emissions An RF power amplifier architecture minimizes spurious emissions by breaking the transmitted signal into narrow spectrum sub-bands, amplifying each separately,... |
| US-7,409,009 |
Method and apparatus of peak-to-average power ratio reduction A technique of reducing the Peak-to-Average Power Ratio (PAPR) of Multi-Carrier (MC) modulated signals in which peaks in the baseband signal that lie above a... |
| US-7,409,008 |
Transmitting arrangement for mobile radio A transmitting arrangement, in particular for mobile radio, has a quadrature modulator with an upstream, digital signal processing unit. In order to suppress... |
| US-7,409,007 |
Method and apparatus for reducing adjacent channel power in wireless
communication systems This invention relates to a method and apparatus for reducing adjacent channel power in wireless communication systems. More particularly, the present invention... |
| US-7,409,006 |
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... |
| US-7,409,005 |
High speed data transmitter and transmitting method thereof A transmitter for transmitting data in response to N clock signals with the same period T is provided. Every two adjacent clock signals have a phase difference... |
| US-7,409,004 |
Hybrid polar modulator differential phase Cartesian feedback correction
circuit for power amplifier linearization The present invention, generally speaking, provides a method of obtaining very accurate estimates of the phase and amplitude distortions introduced by radio... |
| US-7,409,003 |
Method and apparatus for implementing adaptive tomlinson-harashima
precoding in a digital data link The invention relates to a method for implementing adaptive Tomlinson-Harashima precoding using a digital data communications link. According to the method, the... |
| US-7,409,002 |
Signal modulation According to an embodiment of the invention, a method and apparatus for signal modulation are described. According to an embodiment of the invention, a method... |
| US-7,409,001 |
Method and apparatus using coordinate interleaving to increase diversity
in a MIMO system A method to increase diversity in MIMO fading channels interleaves coordinates of complex symbol(s) in a transmission frame after encoding and modulating.... |
| US-7,409,000 |
Data transmission/reception apparatus and method for improving performance
in a mobile communication system... Disclosed is a space-time trellis code (STTC) encoding method for performing space-time coding of a serially-concatenated space-time code (SC-STC) in an encoder... |
| US-7,408,999 |
Method and system for dynamic interleaver adaptation scheme in VDSL The present invention provides a method and apparatus for a new interleaver adaptation scheme that achieves "error free" and zero delay ... |
| US-7,408,998 |
System and method for adaptive bit loading source coding via vector
quantization A communication system includes a data transmitter and a data receiver in which the data transmitter transmits data using a multicarrier modulation, such as an... |
| US-7,408,997 |
Modulation/demodulation apparatus using matrix and anti-matrix A modulation and demodulation system is provided. The system uses n sub-carrier frequencies and an oversampling positive integer and includes a modulation... |
| US-7,408,996 |
Method and apparatus for synchronization of data in a transformer circuit A method and apparatus for synchronizing the secondary side to the primary side of a transformer circuit are presented. A preamble which consists primarily of... |
| US-7,408,995 |
High speed communication system with a feedback synchronization loop In a communications device having a physical layer device and a processing device connected to the physical layer device, the number of input/output (I/O) ports... |
| US-7,408,994 |
AC coupling system for wide band digital data with dynamic AC load An interface system couples a fixed impedance device to a receiver for transmitting data signals at different data rates at different times. The interface system... |
| US-7,408,993 |
Digital communication extender system and method An extender circuit for handling a communication signal transmitted over a transmission line includes a voltage clamp and a current booster circuit. The voltage... |
| US-7,408,992 |
Detection and repair of MPEG-2 chroma upconversion artifacts A method for removing MPEG-2 chroma upconversion artifacts in a video stream includes detecting a presence of artifacts in an incorrectly upsampled MPEG-2 video... |
| US-7,408,991 |
Error detection in low bit-rate video transmission A method for decoding video data blocks using variable length codes, comprising transforming information about the spatial frequency distribution of a video data... |
| US-7,408,990 |
Efficient motion vector coding for video compression Video coding efficiency is improved by jointly coding the x and y components of motion vectors with a single variable length code. The motion vector components... |
| US-7,408,989 |
Method of video encoding using windows and system thereof A first search window within a reference frame of video data is identified along with a first correlation threshold value for the first window. The first... |
| US-7,408,988 |
Motion estimation engine with parallel interpolation and search hardware A method for motion estimating. The method generally includes the steps of (A) generating a first interpolated block having a sub-pixel resolution in response to... |
| US-7,408,987 |
Method of motion estimation for transmission cost reduction of motion
vectors The method includes segmentation of the video image into image blocks, movement estimation per image block in order to obtain a field of movement vectors. It is... |
| US-7,408,986 |
Increasing motion smoothness using frame interpolation with motion
analysis Techniques and tools for video frame interpolation and motion analysis are described. The techniques and tools may be implemented separately or in combination in... |
| US-7,408,985 |
Moving picture coding apparatus and method A coding control section 26 determines a quantization step size 24 and frame skip control information 25 based on a remainder of a buffer 20 and a maximum... |
| US-7,408,984 |
Method and system for multiple pass video coding A real-time MPEG video coding system with information look-ahead for constant bit rate (CBR) applications, such as, for example, Video-on-Demand (VoD) over ADSL.... |
| US-7,408,983 |
Digital filter Disclosed is a digital filter with a combined architecture of a 4-tap real valued filter and a-tap complex valued filter, whereby the filter size is reduced and... |
| US-7,408,982 |
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... |
| US-7,408,981 |
Methods and circuits for performing margining tests in the presence of a
decision feedback equalizer Described are methods and circuits for margin testing receivers equipped with Decision Feedback Equalization (DFE) or other forms of feedback that employ... |
| US-7,408,980 |
Semi-distributed power spectrum control for digital subscriber line
communications A semi-distributed method of managing the spectral power over multiple digital subscriber line communication loops (LP1, LP2) is disclosed. A central office (CO)... |
| US-7,408,979 |
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... |
| US-7,408,978 |
Extended algorithm data estimator A method of data estimation for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system or any other system using an extended algorithm (EA) in... |
| US-7,408,977 |
Wireless communications apparatus and method using array antenna A wireless communication apparatus comprises an array antenna configured to receive a signal at multiple antenna elements; a DoA estimation unit configured to... |
| US-7,408,976 |
MIMO-OFDM receiver processing with frequency and channel estimation A receiver in a MIMO-OFDM system may process OFDM symbols received on a number (M.sub.R) of receive antennas. The system may utilize a MIMO-OFDM frame format... |
| US-7,408,975 |
Transmit power adaptation for CDMA communication systems using successive
interference cancellation Transmit power adaptation for DS/CDMA systems is disclosed for a CDMA system that utilizes a successive interference cancellation receiver on fading channels.... |
| US-7,408,974 |
Composite code-division/time-division multiplex system Increased data communication capacity in a sector of a CDMA wireless system using a combination of code division multiplexing and time division multiplexing.... |
| US-7,408,973 |
Ultra wide bandwidth spread-spectrum communications system An ultra wide bandwidth, high speed, spread spectrum communications system uses short wavelets of electromagnetic energy to transmit information through objects... |
| US-7,408,972 |
Optically pumped semiconductor laser device An optically pumped semiconductor laser device having a surface-emitting vertical emission region (1) and at least one monolithically integrated pump radiation... |
| US-7,408,971 |
Longitudinally pumped solid state laser and methods of making and using A laser apparatus for producing a laser light beam can include a gain medium; a pump light source to provide a pump light beam to the gain medium; a first... |
| US-7,408,970 |
Optically pumped external-cavity semiconductor laser with multiple gain
structures A laser-resonator terminated by two end mirrors is folded by a plurality of OPS-structures and a plurality of fold-mirrors. The OPS-structures are energized by... |
| US-7,408,969 |
Optical cavity and laser A novel laser cavity structure is disclosed which pertains to laser resonator geometries possessing circular symmetry, such as in the case of disk or spherical... |
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