AcclaimIP-ad

Match Document Document Title
9036737 Polar modulation  
A modulator comprises a polar generation stage that generates an amplitude and phase component of a modulation signal, a differentiator stage that generates a differentiated phase component by...
9035812 Method and apparatus for generating a band pass signal  
A modulator and a method are disclosed. The modulator is for generating a band pass signal and comprises: sigma delta modulation logic operable to receive an input signal and to perform at least a...
9031161 Apparatus and method for scrambling in a wireless communication system  
An apparatus for a transmit end in a wireless communication system is provided. The apparatus includes at least one scrambler configured to scramble a transmission bit stream, wherein the at least...
9025430 System and method of modulation and coding scheme adjustment for a LTE shared data channel  
A system, method and node for modulation and coding scheme adjustment for a Long Term Evolution (LTE) shared Data Channel. The method determines an actual number of orthogonal frequency division...
9020069 Active general purpose hybrid  
A general purpose hybrid includes a first input port in communication with a first dual vector generator, a second input port in communication with a second dual vector generator, a first active...
9014289 Transmission method for dual digital signal through single antenna, transmitter for dual digital signal through single antenna and receiving method for dual digital signal through single antenna  
Disclosed is a method of transmitting dual digital signals through a single antenna. The method includes receiving, by a transmitter, a first data stream and a second data stream which use the...
9014300 Switched-mode high-linearity transmitter using pulse width modulation  
A QAM transmitter is disclosed that may reduce the frequency of local clock signals and/or reduce the switching frequency of driver circuits when generating a QAM output signal for transmission....
9008201 Robust HARQ-ACK design for MF-HSDPA  
When a UE (12) is configured with MF-HSDPA and HARQ-ACK information associated with cells (14, 16) (characterized by potentially different downlink timing) is jointly encoded, only part of the...
8995573 Octagonal quadrature amplitude modulation  
Octagonal non-rectangular Quadrature Amplitude Modulation (QAM) is disclosed. Grid points from a uniform rectangular grid, which includes points that have equal horizontal and vertical spacing,...
8995537 Method and apparatus for transmitting uplink control information in a wireless communication system  
The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink control information in a wireless communication system. A...
8988260 Method and circuit for continuous-time delta-sigma DAC with reduced noise  
A continuous-time delta-sigma digital-to-analog converter (DAC) includes a first delta-sigma modulator configured to quantize a most significant bit or bits of a digital input signal and produce a...
8982986 Method and device for coded modulation  
A method for optimising a coded modulation scheme with a given spectral efficiency for communication over a fading channel represented/identified by B fading gains, where B is an integer number...
8971433 Compressive wireless modulation  
A projection code is applied to encode symbols as weighted arithmetic sums of approximately random subsets of binary source bits. Pairs of the symbols are combined to form constellation points,...
8964888 System and method of generating a pre-emphasis pulse  
A method includes detecting one or more of an upward transition of a single-ended data signal via a first driver path to a pre-emphasis transmitter or a downward transition of the single-ended...
8964895 WLAN transmitter having high data throughput  
A wireless local area network (WLAN) transmitter includes a baseband processing module and a plurality of radio frequency (RF) transmitters. The processing module selects one of a plurality of...
8953712 Method for data modulation and transmitter using the same  
A method for data transmission using spatial-domain modulation, and a transmitter using the same has been proposed. The method comprises the following steps including at least but not limited to...
8948304 Apparatus and method for transmitting and receiving data in a communication or broadcasting system using linear block code  
Provided is a method for transmitting data in a communication or broadcasting system using a linear block code by generating a codeword by encoding input information data bits, interleaving the...
8942273 Communication method of relay node using non-linear hybrid network coding and device using said method  
Provided is a relay node that performs network coding with respect to signals transmitted from a plurality of sources. The relay node may partition a plurality of constellation points into a...
8942327 Modulation division multiple access  
The present invention employs hierarchical modulation to simultaneously transmit information on different modulation layers using a carrier RF signal. Initially, first data to be transmitted is...
8929484 Communications transmitter having high-efficiency combination modulator  
A communications transmitter includes a baseband processor configured to generate amplitude, angle, in-phase and quadrature baseband signals and a combination modulator that is configurable to...
8923438 Dual rate communication  
A dual rate transmitter may include a modulator circuit configured to modulate orthogonal signals to generate a quadrature modulated signal. An amplifier may be configured to amplify the...
8923434 Method and apparatus for modifying a complex-valued signal, and mobile communication device  
A method and an apparatus for modifying a complex-valued signal are described, the complex-valued signal representing a first symbol and a second symbol. A signal trajectory of the complex-valued...
8924823 System and method for cycle slip correction  
A system and method including a parity bit encoder for encoding each n bits of data to be transmitted with a parity check bit to produce blocks of n+1 bits (n information bits plus one parity bit...
8913694 Fast LO leakage calibration of direct up-conversion transmitters using three measurements  
A direct conversion transmitter has a mixer stage to up-convert an input signal to the frequency of a local oscillator (LO). A DC offset circuit is coupled to an input signal port to apply a set...
8908799 Systems and methods for communicating using ASK or QAM with uneven symbol constellation  
Systems and methods of performing ASK or QAM modulation with uneven distance between symbols are provided. Different bit positions mapped to such symbols are assigned to different receivers, with...
8902882 Systems and methods for providing customer support  
Systems and methods are disclosed for providing sales or customer support using a telephone having a camera to capture at least a partial image of a product or service; wherein the at least...
8903017 Array amplitude modulation system and method  
Array amplitude modulation which includes mapping a data symbol to a phase modulation signal and an amplitude modulation signal for transmission from antenna elements; applying the phase...
8891671 Method, apparatus and system for calibrating channel  
A method for calibrating a channel which includes: performing slide-window correlation on a delayed downlink service signal of a current transmit channel and a feedback signal of the transmit...
8891557 Method and apparatus for sending information via selection of resources used for transmission  
Techniques for transmitting information in a wireless network are described. In an aspect, information may be conveyed based on specific resources used to send a signal, e.g., a pilot. A...
8890634 Multiplexed configurable sigma delta modulators for noise shaping in a 25-percent duty cycle digital transmitter  
A modulator generates a baseband digital signal from an information-bearing digital signal. The baseband signal has time-varying phase and amplitude defined by a sequence of complex data words,...
8891681 Transmitters and methods  
A transmitter comprises a baseband signal path, which is designed to provide a first baseband signal having an in-phase component and a quadrature component in a first mode of the transmitter and...
8891715 Digital pre-distortion  
A pre-distortion circuit that may introduce a pre-distortion signal in a communication channel by determining a harmonic signal of the signal to be output. One or more image correction signals of...
8891680 Transmission arrangement and method for modulating useful signals onto a carrier frequency signal  
A transmission arrangement for modulating useful signals onto a carrier frequency signal has a frequency generator for generating the carrier frequency signal, a first modulation path for...
8891651 Data transmission device and method in a wireless communications system  
The present invention provides a data transmission device and method in a wireless communication system. The device comprises a processor which is connected with the M antennas and which is formed...
8885766 Optical communication interface utilizing N-dimensional double square quadrature amplitude modulation  
The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to...
8879667 Layer shifting in open loop multiple-input, multiple-output communications  
Embodiments of the present disclosure describe methods, apparatuses, and systems related to use of interphase/quadrature component layer shifting in open loop multiple-input, multiple-output...
8867659 Method and a device for transmitting and receiving signals with modulation compression  
A communications device includes a transmitter, a transmission processing device, a receiver, and a reception processing device. The transmission processing device assigns signal-space points...
8867654 Transmission device, communication system, transmission method and program  
A transmission device of the present invention includes a baseband waveform generator to generate a transmission signal by using a transfer function H0(f) that is in a relation of a matched filter...
8867644 Receiver for voice services over adaptive multi-user channels on one slot  
A receiver, in particular a VAMOS receiver, is provided. The receiver is adapted to split the complex-valued baseband signal into its real and imaginary parts. The two branch system thus created...
8867662 Multidimensional constellations for coded transmission  
Techniques for rotating and transmitting multidimensional constellations are disclosed. A method for rotating a multidimensional constellation may include constructing a first rotation matrix,...
8867656 Communication apparatus and communication method  
When a determination is made that communication by an SM scheme is suitable, a setting unit performs switching from a communication level by an STC scheme to the communication level by the SM...
8861642 Method and apparatus for mapping quadrature amplitude modulation symbol  
A method and an apparatus for mapping a quadrature amplitude modulation (QAM) symbol. The QAM symbol mapping apparatus includes a frequency checker, which checks frequencies of sub-carriers in an...
8861636 Coherent detection using coherent decoding and interleaving  
A system is configured to receive a block of symbols, associated with a phase-modulated signal that includes data symbols that correspond to a payload associated with the signal, and control...
8855235 Circuit transmission apparatus and transmission method  
A transmission apparatus includes: a multiplier configured to multiply a signal provided on a complex plane by a multiplication coefficient corresponding to a number of transmission sub-carriers;...
8855181 Method and system for compensating a delay mismatch between a first measurement channel and a second measurement channel  
A method and a system for compensating a delay mismatch between a first measurement channel and a second measurement channel is disclosed. A method for compensating a delay mismatch between a...
8848831 Direct digital synthesis of quadrature modulated signals  
An apparatus comprises a direct digital synthesizer, a mixer having first and second input ports and an output port, and a numerically-controlled oscillator. The direct digital synthesizer has a...
8848830 Method for providing a modulation scheme  
A method for providing a first modulation scheme based on a second modulation scheme, the second modulation scheme including a first constellation point associated with a first bit pattern and a...
8842770 Method of coding and decoding a pulse signal, in particular an UWB-IR signal, and corresponding devices  
A method is for decoding a pulse signal modulated through a transmitted reference modulation scheme. The modulated pulse signal may include, repetitively, a reference pulse followed by an...
8842761 Methodology and method and apparatus for signaling with capacity optimized constellations  
Communication systems are described that use geometrically shaped constellations that have increased capacity compared to conventional constellations operating within a similar SNR band. In...
8837618 Transmission processing method, transmitter, reception processing method, and receiver  
Information bits are encoded according to a low density parity check code with code rate 7/15 and a codeword length of 16200. The resulting codeword bits are bit-interleaved and the interleaved...