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Patent # Description
US-7,961,814 Method for using a symbol mapper using a symbol mapping scheme to generate modulation symbols according to a...
The invention relates to method and apparatus for generating modulation symbols according to a second symbol mapping scheme by a symbol mapping unit being...
US-7,961,813 Multi-value modulation/demodulation method and multi-value modulation/demodulation device
N (integer equal to or above 3) quaternary phase shift keying (QPSK) outputs having different amplitude levels, i.e., r2=r1.times.2.sup.-(i-1), i=2 . . . N with...
US-7,961,812 Digital compensation for nonlinearities in a polar transmitter
A polar transmitter includes a digital processor coupled to receive a complex modulated digital signal and a feedback signal produced from the complex modulated...
US-7,961,811 Radio transmitting apparatus and radio transmitting method
A radio transmitting apparatus and method thereof wherein a guard interval (GI) having a variable length allows a radio receiving apparatus to precisely and...
US-7,961,810 Antenna grouping and group-based enhancements for MIMO systems
Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the...
US-7,961,809 Method and apparatus for multi-user multi-input multi-output transmission
Embodiments of the present invention relate to methods and systems of transmitting data signals from at least one transmitting terminal with a spatial diversity...
US-7,961,808 Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same
A method for performing a precoding based on a generalized phase shift or a precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO)...
US-7,961,807 Reference signaling scheme using compressed feedforward codebooks for multi-user, multiple input, multiple...
A multi-user multiple input multiple output (MIMO) downlink beamforming system with limited feed forward (200) is provided to enable precoding matrix...
US-7,961,806 Power adaptive channel estimation for a multi-path receiving
A multi-path receiving system is provided. The multi-path receiving system includes a multi-path analyzer, a channel estimator and an equalizer. The multi-path...
US-7,961,805 Method for the coding of an OFDM/OQAM signal using symbols with complex values, and corresponding signal,...
A method and apparatus are provided for coding an OFDM/OQAM-type multi-carrier signal formed by a temporal succession of symbols comprising a set of data...
US-7,961,804 Channel tracking with scattered pilots
According to the disclosure, a system adapted to estimate and track a channel for wireless orthogonal frequency division modulation (OFDM) communication is...
US-7,961,803 COFDM demodulator with an optimal FFT analysis window positioning
The invention relates to a method for the COFDM demodulation of a signal received from a transmission channel. The inventive method includes performing the fast...
US-7,961,802 Interpolation in channel state feedback
Feedback bandwidth may be reduced in a closed loop MIMO system by Householder transformations, vector quantization using codebooks, and down-sampling in the...
US-7,961,801 Transmitter identification information signal detection apparatus and method
A transmitter identification information (TII) signal detection circuit is suitable for an orthogonal frequency division modulation system. A TII signal...
US-7,961,800 Adaptive radio/modulation apparatus, receiver apparatus, wireless communication system, and wireless...
Adaptive modulation part (1) modulates a signal in a modulation scheme selected based on a modulation mode, switch (2) selects a radio scheme congenial to the...
US-7,961,799 Joint estimation apparatus of channel and frequency offset based on multiband-orthogonal frequency division...
The present invention relates, in general, to a joint channel and frequency offset estimation apparatus and method based on a multi-band-orthogonal frequency...
US-7,961,798 Modulation and demodulation apparatuses and methods for wired/wireless communication system
Wired/wireless optical signal modulation and demodulation apparatuses and methods using an intensity modulation/direct detection method and an orthogonal...
US-7,961,797 Nonlinear viterbi complexity reduction
System and methods for reducing the complexity or area of a non-linear Viterbi detector. In some embodiments, a Viterbi detector calculates branch metrics for a...
US-7,961,796 Apparatus and method for CINR estimation in a wireless communication system
An apparatus and a method for estimating a Carrier to Interference and Noise Ratio (CINR) of an uplink channel in a wireless communication system are provided....
US-7,961,795 Channel estimation
The channel estimation for a current data block is based on a previous data block, where the two data blocks are based on common information. Data symbol...
US-7,961,794 Transfer of digital data through a transformer
A method and a system for transferring a digital signal through a transformer, including a circuit for coding the digital signal to be transferred, having two...
US-7,961,793 Picture coding method and picture decoding method
A picture coding apparatus (300) is a picture coding apparatus that codes a difference between picture data (Img) representing an input picture and predictive...
US-7,961,792 Robust system for maintaining audio/video synchronization during playback of multimedia streams with no...
An apparatus having a first circuit, a second circuit and a third circuit. The first circuit may be configured to (i) demultiplex a multimedia stream having one...
US-7,961,791 Apparatus and method for control of blocking noise suppressor
A decoding apparatus includes a decoder configured to receive a series of encoded pictures and to decode each of the encoded pictures to produce a series of...
US-7,961,790 Method for encoding/decoding signals with multiple descriptions vector and matrix
The method for encoding and/or decoding video signals, includes the operations of generating at a transmitter side a multiple descriptions vector associated to...
US-7,961,789 Method and apparatus for determining search range for adaptive motion vector for use in video encoder
The video encoder in accordance with the present invention divides input image signal into macro blocks, estimates motion vectors of each macro block and...
US-7,961,788 Method and apparatus for video encoding and decoding, and recording medium having recorded thereon a program...
A video encoding method includes generating a primary error image by performing motion estimation and compensation on a current frame with reference to a...
US-7,961,787 Method of video content complexity estimation, scene change detection and video encoding
Methods of video content complexity estimation, scene change detection and video encoding are provided. The video content complexity estimation and the scene...
US-7,961,786 Signaling field type information
Techniques and tools for signaling of field type information for interlaced video frames are described. For example, a video decoder receives a code for an...
US-7,961,785 Method for encoding interlaced digital video data
Interlaced video can be encoded in two layers, base layer and enhancement layer. A method for optimizing the encoding of motion vectors for enhancement layer is...
US-7,961,784 Method and system for improving compressed image chroma information
Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color...
US-7,961,783 Methods and systems for rate control in video encoder
A method of rate control in a video encoder includes performing a first encoding step to encode macroblocks of a current frame by utilizing a first quantization...
US-7,961,782 Interference suppression processing unit and a method of suppressing interference in wireless data communication
The interference suppression processing unit includes N.sub.a.gtoreq.1 receiver paths to transmit respective N.sub.a.gtoreq.1 received data sequences received...
US-7,961,781 Electronic dispersion compensation utilizing interleaved architecture and channel identification for assisting...
Embodiments include a system for performing dispersion compensation on an electromagnetic signal received over a communication channel, the electromagnetic...
US-7,961,780 Generated set top calibration patterns in manufacturing
Included are systems and methods for performing an internal operations test to a set top terminal (STT). At least one embodiment of a method includes creating a...
US-7,961,779 Noise-driven recovery of a digital pulse stream
Provided is a method and system for noise-driven recovery of a digital pulse stream. The method includes receiving initial parameters including the base...
US-7,961,778 Data-dependent jitter pre-emphasis for high-speed serial link transmitters
In the context of high-speed serial links, data-dependent jitter compensation techniques performed using phase pre-distortion. Broadly contemplated is an...
US-7,961,777 Signal processing apparatus, signal processing method, and program
A signal processing apparatus configured to process a signal transmitted via a transmission path where a waveform represented by a signal value of a particular...
US-7,961,776 Digital receiver device for DSSS-encoded signals
A device for decoding a direct sequence spread spectrum-encoded binary message includes a sampler that captures at least one sequence of binary samples...
US-7,961,775 Method and system for a delta quantizer for MIMO pre-coders with finite rate channel state information feedback
Aspects of a method and system for a delta quantizer for MIMO pre-coders with finite rate channel state information feedback may comprise quantizing a change in...
US-7,961,774 Multipath interference-resistant receivers for closed-loop transmit diversity (CLTD) in code-division multiple...
System and method for providing interference resistance in communications systems using closed-loop transmit diversity (CLTD). A preferred embodiment comprises:...
US-7,961,773 Weighted open loop power control transmitter
A weighted open loop power control transmitter for controlling transmission power levels using a spread spectrum time division duplex (TDD) technique having...
US-7,961,772 Optimized pulse pumped laser system using feedback
A laser system according to the invention comprises pump generating means (x02, x03) for generating at least a first and a second, preferably focused, pump...
US-7,961,771 High-gain diode-pumped laser amplifier
A laser amplifier includes a laser active slab with a source of pump power to amplify an input laser beam, the laser active slab including a block of laser...
US-7,961,770 Optoelectronic module with integrated monitoring photodiode array for a parallel optical transmitter
A power monitoring system uses a low loss reflective element to partially split the output laser beams from an array of laser sources, in a parallel...
US-7,961,769 Wavelength tunable semiconductor laser device, controller for the same, and control method for the same
An object is to provide a wavelength tunable semiconductor laser device, a controller for the same and a control method for the same, which prevent wavelength...
US-7,961,768 Integrated semiconductor laser device and method of fabricating the same
An integrated semiconductor laser device capable of improving the properties of a laser beam and reducing the cost for optical axis adjustment is provided. This...
US-7,961,767 System and method to regulate high current radiation sources
Disclosed is a high current radiation system. The system includes a high current radiation source to generate radiation and an analog circuit to generate,...
US-7,961,766 Method and system for controlling wavelengths of multi-path laser
A method for controlling wavelengths of a multi-path laser is provided. The method includes: obtaining a difference between an actual output wavelength and a...
US-7,961,765 Narrow surface corrugated grating
Narrow surface corrugated gratings for integrated optical components and their method of manufacture. An embodiment includes a grating having a width narrower...
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