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7133480 |
Method and apparatus for processing digitally sampled signals at a resolution finer than that of a sampling clock
A method and related apparatus for reproducing a periodic signal received over a communication channel, or signal window of a desired profile, wherein the resolution of the reproduced signal or...
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7133468 |
Concurrent FM signal receiver
A method and apparatus are provided which detects distortion in a received FM signal caused by amplitude modulating and phase transition of two combined FM signals. A method corrects and modifies...
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7130360 |
Apparatus and method for receiving digital signal
A receiving apparatus and method for a synchronizing process in the digital communication system is disclosed. A receiving apparatus includes: a A/D converting unit for performing an over-sampling...
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7130359 |
Self calibrating receive path correction system in a receiver
A receiver ( 50 ) includes a self-calibrating receive path correction system for correction of I/Q gain and phase imbalances in a radio frequency signal. The system includes a signal-processing...
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7130352 |
Transceiver apparatus and transceiving method in communication system
Disclosed is a communication system in which it is possible to detect a TFI (Transport Format Indicator) even if a TFCI (Transport Format Combination Indicator) cannot be decoded correctly. The...
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7130326 |
Gated time division multiplexed spread spectrum correlator
A civil moderate (CM) code and a civil long (CL) code are time division multiplex (TDM) as a combined code having alternating code chips that spectrum spread a transmitted signal received by a...
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7130601 |
Determination of received signal strength in a direct conversion receiver
Determination of a received signal strength indication in a direct conversion receiver begins by determining, at a given time, a 1 st value to be the larger of the in-phase component of the...
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7127391 |
Method and apparatus for slice point determination
A method and apparatus is disclosed for reducing the error rate in a received signal by determining and establishing an optimal slice point for a decision device, or optimal operational parameters....
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7127007 |
Method, apparatus and system for high-speed transmission on fiber optic channel
Multi-carrier modulation fiber optic systems constructed using a series of electrical carriers, modulating the data on the electrical carriers and combining the carriers to form a wideband signal....
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7127536 |
Source-synchronous receiver having a predetermined data receive time
A source-synchronous data receiver includes a storage device for sequentially storing data received from a data source, a data output device for sequentially outputting the data that is stored in...
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7126997 |
Multicarrier receiver
A multicarrier receiver which receives a cyclically extended multicarrier symbol which is in a serial format is provided. The multicarrier receiver includes a serial to parallel converter, a window...
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7127008 |
Coherent AM demodulator using a weighted LSB/USB sum for interference mitigation
A method of processing an AM radio signal comprises the step of receiving an AM radio signal including an upper sideband portion and a lower sideband portion, demodulating the upper sideband...
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7123896 |
Method and apparatus for I/Q mismatch calibration in a receiver
A method for I/Q mismatch calibration in a receiver. The receiver has an I/Q correction module using parameters A p and B p . The method comprises the steps of generating an analog test signal...
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7123667 |
Receiver for wireless communication
Analog processing sections ( 3 a to 3 b ) generate base band analog signal from the received signal. A/D converting sections ( 4 a to 4 b ) the outputs of the analog processing sections into...
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7120205 |
Method and system for multiple-shift code acquisition of optical orthogonal codes in optical CDMA systems
A technique for determining an arbitrary delay in a source code word propagated over a channel that introduces the arbitrary delay in the source code word to produce a received code word. The...
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7116727 |
Frequency offset estimation apparatus for intersymbol interference channels
A frequency offset estimation apparatus for intersymbol interference channels. A storage area having M elements is provided to shift a received sample sequence by M samples to generate a lagged...
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7117016 |
Adaptive antenna base station apparatus
An adaptive antenna base station apparatus comprises an array antenna including N (N being a natural number) antenna elements; N reception sections for respectively performing orthogonal detection...
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7113552 |
Phase sampling techniques using amplitude bits for digital receivers
The present invention uses at least one amplitude bit to assist the phase-sampling technique used in digital receiver architectures. For digital receivers where the Intermediate Frequency (IF) is...
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7110472 |
Transmission method, transmitter and receiver
A receiver for generating a transmission symbol stream by applying predetermined modulation processing to an encoded bit series obtained by encoding an information bit series having a predetermined...
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7110726 |
RF ASIC for subscriber communicator
An RF ASIC for a subscriber communicator includes a receiver section, a transmitter section, a CODEC and an I 2 S port. The receiver section downconverts by superheterodyning and demodulates a...
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7110448 |
ZF-based adaptive asynchronous receiver
The invention concerns an asynchronous receiver for digital transmission and recording systems. The receiver comprises a sampling rate converter (SRC) for timing recovery, preceded by a digital...
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7110473 |
Mode controller for signal acquisition and tracking in an ultra wideband communication system
A system and method is provided for controlling the mode of operation in a UWB receiver. In one variation, the system and method determines the mode of operation by reading a set number of samples...
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7110471 |
Radio communication control device which can accurately determine the start point of the standby period timer
The demodulation unit demodulates a received signal. The detection circuit detects the final data contained in a received data stream supplied from the demodulation unit. When detecting the final...
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7107029 |
Reduced power consumption
A radio frequency receiver for receiving supplementary data transmitted with a radio station signal, said supplementary data comprising one or more information word fields containing supplementary...
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7106808 |
Tuner of the type having zero intermediate frequency and corresponding control process
A tuner includes an analog block, a digital block, and an analog/digital conversion stage connected therebetween. The analog block includes a first attenuator/controlled-gain amplifier stage...
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7106811 |
Wireless communication method and apparatus for performing post-detection constellation correction
A method and apparatus for correcting the phase and gain of data associated with a constellation pattern of a plurality of received individual symbols. Each symbol is divided into real and...
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7106809 |
AM/FM/IBOC receiver architecture
An RF receiver operates to receive broadcast RF signals that include at least one of an analog portion and a digital portion. The RF receiver performs processing of the analog portion and/or the...
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7106810 |
Method and apparatus for a demodulator circuit
A method and apparatus for a demodulator circuit in a communication system is described. The invention relates to a demodulator circuit in a communication system using a multi-carrier modulation...
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7103335 |
Receiver used in spread spectrum communication system
In a receiver used in the spread spectrum communication system, power of a base band signal which is obtained by A/D converting an output of a quadrature demodulator is detected by a base band...
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7103117 |
Reduced-complexity multipath interference cancellation
Multipath interference in a received wireless signal is cancelled by generating an estimated duplicate of the interference and subtracting it from the received signal. The interference duplication...
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7103115 |
Optimum training sequences for wireless systems
In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using...
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7103125 |
Method and apparatus for effecting synchronous pulse generation for use in serial communications
A method for effecting synchronous pulse generation for use in serial communications is provided. The method includes the steps of generating a difference signal representing a signal level...
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7103331 |
Low noise block down converter with reduced power consumption
A power supply circuit of a low noise block converter (LNB) includes a plurality of output voltage regulators. A first output voltage regulator, a local oscillator circuit, a second output voltage...
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7103343 |
Receiver, in particular for mobile radio
A receiver, in particular for mobile radio, includes a receiver branch with a mixer, downstream of an analog/digital converter. A reference generator generates a reference clock, which is fed to...
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7099405 |
Communication systems with hybrid automatic repeat requests (HARQ) and rate matching
A receiver for a HARQ communication system includes a buffer for storing a signal derived from a message. The signal is transmitted to the receiver at a first coding rate. The receiver also...
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7099406 |
Alias sampling for IF-to-baseband conversion in a GPS receiver
The present invention provides a GPS receiver comprising sampling circuitry adapted to perform IF-to-baseband conversion. In general, the GPS receiver includes downconversion circuitry that uses a...
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7099371 |
Method for generating and allocating code pairs of orthogonal spreading codes
The present invention relates to an orthogonal spreading code in a code division multiple access (CDMA) mobile communication system, and more particularly, to a method for generating and allocating...
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7099409 |
Channel estimation and/or equalization using repeated adaptation
A novel approach of repeated adaptation is provided that can be applied to either one or both of channel estimation and/or equalization. From an incoming data packet that includes data and a...
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7099407 |
Phase frequency synchronism circuitry and optical receiver
In order to solve the problem that since a loop filter constant suitable for asynchronous state cannot be selected in the conventional phase frequency synchronism circuit, it takes a long time to...
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7095802 |
Apparatus and method for GPS-based digital compensation of radio frequencies
An apparatus and method for controlling the communication frequencies of a software controlled radio by using GPS to calibrate one or more local oscillators and compensating within the digital...
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7095803 |
Method of reconstructing data transmitted over a transmission path in a receiver and corresponding device
To reconstruct data transmitted over a transmission path, for example a cable, the corresponding signal received by the receiver is firstly amplified and subsequently made discrete by means of an...
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7093187 |
Variable code rate and signal constellation turbo trellis coded modulation codec
Variable code rate and signal constellation turbo trellis coded modulation (TTCM) codec. A common trellis is employed at both ends of a communication system (in an encoder and decoder) to code and...
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7088788 |
Communication device and digital encoding method thereof
The present invention provides a communication device and a digital encoding method thereof. The communication device comprises a first and a second emitting devices respectively communicating at a...
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7088787 |
Post-FFT scaling to reduce multiple effects
A method of scaling at a receiver representations of training signals received from a transmitter. The method includes producing a frequency domain representation of at least one long training...
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7088769 |
Signal transmission method and apparatus, and signal transmission system
An apparatus/system and a method for optical fiber two-way communication, which enables highly reliable transmission at all times in order to carry out communication at a high transmission speed...
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7088796 |
Phase detector customized for clock synthesis unit
A phase detector customized for Clock Synthesis Unit (CSU) is disclosed. The phase detector improves jitter performance by providing minimal activity on VCO control lines and pushing ripple...
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7088950 |
Method and apparatus for controlling integrated receiver operation in a communications terminal
A method and apparatus for controlling integrated receiver operation in a communications terminal includes using an electronic device having a broadcast receiving module and a two-way...
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7088785 |
Block level space time transmit diversity in wireless communications
Space time transmit diversity ( 9, 14, 17, 19 ) is applied at the block level to an original block of bits ( 12 ) in order to reduce the effects of fading in wireless communication systems that use...
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7088794 |
Automatic gain control for digitized RF signal processing
An automatic gain control RF signal processor for receiver systems, such as radar intercept receivers, includes an attenuator having an input for receiving an analog RF input signal, an amplifier...
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7085309 |
Radiofrequency signal receiver with means for correcting the effects of multipath signals, and method for activating the receiver
The receiver ( 1 ) for radio-frequency signals (SV 1 , SV 2 , SV 3 , SV 4 ), modulated by specific codes of transmitting sources, such as satellites (S 1 , S 2 , S 3 , 5 4 ), includes receiving and...
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