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9019030 Memristor-based emulator for use in digital modulation  
A memristor-based emulator including a memristor circuit for use in digital modulation that includes a first current feedback operational amplifier (CFOA) having multiple terminals in...
9008245 Optimal symbol detection in the presence of non-gaussian interference  
Techniques are provided for detecting a coded signal in the presence of non-Gaussian interference. In an embodiment, a primary transmitter corresponds to a desired transmitter, and one or more...
9008212 High data rate millimeter wave radio  
A high data rate millimeter wave radio adapted to receive an binary input data at an input data rate in excess of 3.5 Gbps and to transmit at a transmit data rate in excess of 3.5 Gbps utilizing...
9001929 Method and apparatus for transmitting symbol repeatedly in wireless communication system  
A method and an apparatus for a transmitter to transmit data in a wireless communication system are provided. This method includes: generating a first signal field including at least one symbol;...
8964902 Method and apparatus for eliminating direct current offset  
The present invention provides a method and an apparatus for eliminating direct current offset. The method comprises the steps of: calculating Euclidean distances between every two demodulation...
8948292 Phase angle mapping for phase modulation  
In determining an angle for a phase modulation scheme, a key is generated from a prescribed set of bits contained in a symbol. The symbols have an in-phase (I) data word and a quadrature phase (Q)...
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...
8929431 Transceiver for serial data communication utilizing PWM encoded signal  
Serial data are transmitted between transceivers via a communication path, each bit expressed by a dominant code or a recessive code which vary between dominant and recessive levels, the dominant...
8923439 Complementary signal mixing  
A method of performing complementary mixing may include performing an exclusive OR (XOR) function with respect to an I-channel symbol based on an oscillator signal to produce an I-channel output...
8923417 Methods and apparatus for transceiver power noise reduction  
Embodiments disclosed herein relate to apparatus and methods of transceiver power noise reduction. One embodiment relates to a method of serial data communication. At a transmitter, data may be...
8879661 Signal processing apparatus, transmitter, receiver and method  
A signal processing apparatus configured to correct a distortion introduced by a signal processing path into a processed signal comprising a transformer that transforms the processed signal into a...
8873609 Communication apparatus and communication method  
A communication apparatus including: a receiver to receive signals including reference signals at each of a plurality of different reception intervals; and a processor to estimate phase...
8873658 Apparatus and method for transmitting data using a plurality of carriers  
An apparatus for receiving signals includes a receiver for receiving a time domain signal from a transmitter, wherein at least one first information bit is mapped, resulting in at least one first...
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...
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...
8861644 Devices of IQ mismatch calibration, and methods thereof  
The device with IQ mismatch compensation includes a transmitter oscillator, a transmitter module, and a loop-back module. The transmitter module is arranged to up-convert a transmitter signal with...
8824589 Method, apparatus, and system for microwave signal correction  
A method, an apparatus, and a system are provided in various embodiments of the present invention. According to embodiments of the present invention, the receiver samples the frequency signal from...
8804868 System and method for sending and receiving a digital signal over a radio pathway  
A constant-amplitude and continuous-phase modulation method for modulating digital data and for demodulating said modulated signal, said data taking the form of symbols a(n) that can take a number...
8792542 Method and device for improved detection and analysis of partial discharge activity in and around high voltage electrical equipment  
Apparatus for processing broadband impulses signals of low repetition rate includes a tuner for receiving broadband impulsive signals of low repetition rate and providing an output signal...
8774318 Method and apparatus for constant envelope modulation  
Certain aspects of the present disclosure relate to a method for modulating single carrier signals using constant envelope 2-CPM modulation and quasi-constant envelope filtered continuously...
8750411 Method and apparatus for reducing transmitter interference  
A method and apparatus mitigates spurious transmissions. An offset local oscillator signal is generated that is at a frequency that is offset from a nominal transmit channel carrier frequency by a...
RE44927 Transmission format indication and feedback in multi-carrier wireless communication systems  
A method is provided for specifying a transmission mode for each signal portion of a multi-carrier signal transmitted between a first and second device. The method includes defining an adaptive...
8737517 Scrambling and modulation to constrain the constellation size of ACK/NAK transmission on the data channel  
Aspects describe maximizing a Euclidean distance for an ACK transmission as a function of the number of bits in a HARQ-ACK and a modulation order. Encoding includes placing escape sequences in the...
8724744 Method and apparatus for wide dynamic range reduction  
The present invention discloses a method and apparatus for wide dynamic range phase conversion. In one embodiment, inphase and quadrature signal components of a complex input signal are collapsed...
8718191 Method and apparatus for transmitting/receiving data in wireless communication system  
A method for transmitting, by a transmitting terminal, data to a receiving terminal in a wireless communication system includes: generating a first detection field including symbols modulated by...
8705658 Method and apparatus of modulating signal in broadcasting and communication system  
Modulating method and apparatus in a broadcasting and communication system are provided. The modulating apparatus includes: a first quadrature phase shift keying (QPSK) modulating unit...
8660210 Method of packet format dependent selection of MIMO-OFDM demodulator  
Systems and methodologies are described that facilitate code rate and modulation order dependent selection of a suitable demodulator for a received data packet. According to various aspects,...
8654822 Link adaptation system using doppler frequency and method using the same  
A link adaptation system using a Doppler frequency is provided. The link adaptation system includes: a Doppler frequency estimation unit to estimate a Doppler frequency of a signal transmitted via...
8634450 Adaptive error correcting code for data communications over a plastic optical fibre  
An efficient coding and modulation system for transmission of digital data over plastic optical fibers is disclosed. The digital signal is coded by a three-level coset coding. The spectral...
8619895 Apparatus and method for transmitting/receiving broadcast data in digital broadcasting system  
Disclosed are a method and an apparatus for transmitting and receiving broadcast data in a digital broadcasting system. The method for transmitting and receiving broadcast data in a digital...
8605826 Multi-gigabit millimeter wave receiver system and demodulator system  
A receiver system and a demodulator system are configured to receive and demodulate, respectively, multi-gigabit millimeter wave signals being wirelessly transmitted in the unlicensed wireless...
8599939 Data transmission method  
A data transmission method is disclosed, and the method comprises: encoding binary data to be transmitted with encoding principle as follows: encoding binary data x1 in the manner of no jumping at...
8576893 Systems and methods for high data rate ultra wideband communication  
A high data rate UWB system implements a frame structure that uses a connected set of m-sequences comprising the lowest possible cross-correlation and perfect, or near perfect autocorrelation....
8576897 Receiver  
A method, apparatus and computer program product for a method of operating an analog-to-digital converter of a transceiver which includes a transmitter and a receiver, the receiver including the...
8576954 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 and a cross-correlator. The...
8576953 Identification of target signals in radio frequency pulsed environments  
A system and method for processing signals are disclosed. The method may be performed, at least partially, by the system. In one embodiment, the method comprises sending a first plurality of data...
8565348 Radio transmitting apparatus  
The radio transmitting apparatus includes a first initial phase value setting circuit that sets, in the first modulator, an initial value of the phase of the first modulated signal, which is a...
8553748 ADC clock selection based on determined maximum conversion rate  
The present invention introduces a method, an apparatus and a computer program product for mitigating effects of alias responses in a transceiver, by selecting a clock rate for an...
8537657 Cross domain modulation scheme for a wireless communication link  
In certain embodiments, a wireless communication link includes a wireless receiver that receives a circular polarized signal from a remotely configured transmitter. The circular polarized signal...
8537041 Interpolation-based digital pre-distortion architecture  
A non-linear amplifier is linearized using interpolation-based digital pre-distortion (DPD). In one embodiment, the digital input signal is interpolated to generate a higher-sample-rate signal...
8520766 Transmitter and communication apparatus  
Provided is a transmitter which is small in size and operates with high efficiency and compensates a delay error with high accuracy. A signal generation section 11 outputs a PM test signal and an...
8509358 Viterbi equalization with detection of the nearest constellation points for stage reduction  
The device is used for decoding convolution-encoded reception symbols. In this context, transmission data are modulated with a modulation scheme to form symbols, which are encoded with a...
8503573 Bits-to-symbol mapping method for 4+12+16 APSK modulation  
Disclosed is a bits-to-symbol mapping method of 4+12+16 amplitude phase shift keying (APSK) having excellent performance against the non-linearity of a high power amplifier. According to the...
8498355 Device and method for correcting a data error in communication path  
There are provided a transmission and reception device having a function for correcting a data error in a communication path. In the transmission device, a redundant bit addition unit adds a...
8494071 Device and method for correcting a data error in communication path  
There are provided a transmission and reception device having a function for correcting a data error in a communication path. In the transmission device, a redundant bit addition unit adds a...
8488503 Magnetic field communication method for managing node with low power consumption  
A magnetic field communication method is provided for managing node with low power consumption which enhances performance and efficiency of a magnetic field area network in the low frequency...
8488692 Radio transmission device and radio transmission method  
Provided are a radio transmission device and a radio transmission method capable of improving downlink and uplink throughput even when performing dynamic symbol allocation. In the device and the...
8451093 RFID tag, interrogator and system with improved symbol encoding and decoding  
An improved RFID Tag, Interrogator, and system wherein at least one tag modulates a radio frequency signal by modulated backscatter operations.
8442144 Closed loop feedback system for improved down link performance  
A method includes receiving from a first station at a second station at least two space-time coded signals in respective formed beams of a multi-beam antenna array associated with the first...
8442156 Adaptive IQ alignment apparatus  
A method and apparatus for aligning I- and Q-signals in a quadrature receiver based on an squared signal. A correction is evaluated in an iterative manner by finding an average of the squared...
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