Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 8189648 | Scaling using gain factors for use in data detection Data is estimated from a received vector comprising a plurality of communications. A received wireless signal is converted to a baseband signal, which is sampled to produce a received vector. Channel responses are estimated for the received communications. The noise... | 05/29/2012 |
| 8184676 | Method and apparatus for mitigating the effects of CW interference via post correlation processing in a GPS receiver A positioning system receiver that mitigates the effect of continuous wave (CW) carrier interference with post correlation processing in a satellite positioning receiver, while not distorting the signal waveform or degrading receiver sensitivity and performing in lo... | 05/22/2012 |
| 8179948 | Radio signal demodulating device It is an object of the present invention to provide a radio signal demodulating device in which fluctuation follow ability of transmission channel environment is improved. The radio signal demodulating device according to the present invention receives the amplitude... | 05/15/2012 |
| 8175136 | Noise cancellation method, receiver circuit, and electronic instrument A noise cancellation method includes: inputting an interference wave signal detected near a receiver section, and changing the phase and the amplitude of the input signal to generate a cancellation signal that cancels the input signal; performing correlation calcula... | 05/08/2012 |
| 8165186 | Channel estimation for wireless communication Techniques for deriving channel estimates with different channel estimation filters are described. In one scheme, a filter selection metric is determined for a signal to be recovered, a channel estimation filter is selected based on the filter selection metric, and ... | 04/24/2012 |
| 8149899 | Efficient despread and respread of multi-rate CDMA signals A system and method, comprising a despread module that receives a descrambled signal and an identification of active codes, a soft-symbols memory communicably coupled to the despread module, and a respread module that receives the identification of active codes, a m... | 04/03/2012 |
| 8149897 | Method and apparatus for performing signal correlation for signals received from satellites in multiple satellite systems A method and apparatus for computing a convolution between a satellite signal from one of a plurality of satellite positioning systems and a pseudorandom code reference. The method and apparatus is capable of operating in multiple modes of resolution so as to enhanc... | 04/03/2012 |
| 8149898 | Mobile communication system receiver, path tracking method, and control program thereof To prevent disabling of the path tracking function. A path allocation unit allocates a signal power peak of a delay profile crated by a delay profile creation unit as a path to a finger reception unit. When tracking a path which has been allocated by the path... | 04/03/2012 |
| 8135054 | Processing of interference on a radiofrequency signal by power inversion The invention relates to a radiofrequency receiver, notably for satellite positioning applications, needing to operate in an environment where interference is dense, notably when it involves pulses transmitted by DME beacons. Below the useful signal suppression thre... | 03/13/2012 |
| 8126031 | Time-tracking management of demodulation elements in a receive diversity enabled rake receiver A rake receiver comprises a plurality of receive antennas and a processing system. Each receive antenna has a plurality of demodulation elements. The processing system is configured to assign a plurality of demodulation elements from a plurality of receive antennas ... | 02/28/2012 |
| 8125381 | Satellite-based positioning system improvement A method, device and system for determining a receiver location using weak signal satellite transmissions. The invention involves a sequence of exchanges between an aiding source and a receiver that serve to provide aiding information to the receiver so that the rec... | 02/28/2012 |
| 8121177 | Method and apparatus for interference suppression with efficient matrix inversion in a DS-CDMA system A receiver in a CDMA system comprises a front end processor that generates a combined signal per source. A symbol estimator processes the combined signal to produce symbol estimates. An S-Matrix Generation module refines these symbol estimates based on the sub chann... | 02/21/2012 |
| 8121176 | Iterative interference canceler for wireless multiple-access systems with multiple receive antennas This invention teaches to the details of an interference canceling receiver for canceling intra-cell and inter-cell interference in coded, multiple-access, spread spectrum transmissions that propagate through frequency selective communication channels to a multiplic... | 02/21/2012 |
| 8116353 | Spread spectrum modulator and demodulator A spread spectrum modulator converts input sequences composed of digital symbols into n≧2 spread-spectrum sequences. The spread spectrum modulator can generate spreading code and can combine the spreading code with the input sequences to produce the n spread spect... | 02/14/2012 |
| 8107512 | Method and apparatus for robust automatic frequency control in CDMA systems with constant pilot signals There is provided a method for generating an error signal for an automatic frequency control (AFC) loop in a Code Division Multiple Access (CDMA) system. Sign information relating to phase differences in received pilot signals is accumulated. In one embodiment, the ... | 01/31/2012 |
| 8102899 | Receiver and method of receiving a CDMA signal in presence of interferences with unknown spreading factors A receiver arranged to receive a plurality of spread spectrum signals including a first spread spectrum signal from which interference caused by one or more others of said plurality of signals is to be removed, wherein at least one of said other spread spectrum sign... | 01/24/2012 |
| 8098714 | Method for estimating, in a communication system, the level of interference plus noise affecting received signals representative of a set of received pilot symbols The present invention concerns a method for estimating, in a communication system, a level of interference plus noise affecting received signals representative of a set of received pilot symbols, characterized in that the method comprises the steps of: ... | 01/17/2012 |
| 8090006 | Systems and methods for serial cancellation A receiver in a CDMA system comprises a front end processor that generates a combined signal per source. A symbol estimator processes the combined signal to produce symbol estimates. An S-Matrix Generation module refines these symbol estimates based on the sub chann... | 01/03/2012 |
| 8081672 | Method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system The method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system described herein may provide a fast and cost effective approach to concurrently determine propagation channel estimates in a single-transmit (1-Tx) and m... | 12/20/2011 |
| 8077758 | Signal separation techniques to provide robust spread spectrum signal decoding A spread spectrum communications system includes an antenna array for receiving different summations of desired and undesired signals, and receivers are coupled to the antenna array. Each receiver operates based upon a respective channel code for de-spreading the de... | 12/13/2011 |
| 8077757 | Sampling method for a spread spectrum communication system Method for decoding a signal sent over a bandwidth-expanding communication system, where both channel estimation and signal detection are carried out on a set of samples generated by sampling the received signal at a sub-Nyquist rate, thus allowing for a significant... | 12/13/2011 |
| 8068535 | Robust iterative linear system solvers In receiving equipment such as a mobile terminal (1) for decoding received signals coded according to a CDMA method are decoded in an intermediate processor (9). In the decoding, coefficients or elements of a vector w are calculated in a unit or module... | 11/29/2011 |
| 8064498 | Interference cancellation in variable codelength systems for multi-acess communication A receiver employs low-rate processing to synthesize the effect of high-rate interference in a received multi-rate signal. Each high-rate subchannel is analyzed on its low-rate descendents to produce symbol estimates for each low-rate symbol interval. The symbol est... | 11/22/2011 |
| 8064497 | Selecting delay values for a rake receiver Multipath components of transmitted data symbols are received with individual delays and processed by a RAKE having a number of fingers. A delay profile indicating magnitudes for a first number of delay values is provided. Estimated magnitudes for a second number of... | 11/22/2011 |
| 8045600 | Method and apparatus for compensating for processing timing misalignment in a communication receiver According to the teachings presented herein, a wireless communication apparatus compensates for timing misalignment in its received signal processing. In at least one embodiment, the apparatus estimates a set of path delays for a received signal and sets processing ... | 10/25/2011 |
| 8040937 | Selective noise cancellation of a spread spectrum signal A method is provided for improving a signal-to-noise ratio in a received signal. The method involves receiving a spread spectrum signal (SSS) with a power level below a noise floor of a receiver. The SSS is generated by modulating a data signal using a spreading seq... | 10/18/2011 |
| 8036257 | Method of determining at least one transmit mode parameter for a multiple-input multiple-output system In an embodiment of the method, at least one signal-to-interference-and-noise ratio (SINR) for each antenna configuration in a set of transmission antenna configurations is determined based on an estimated channel characteristic. At least one received signal charact... | 10/11/2011 |
| 8023554 | Method and system for single antenna receiver system for WCDMA Aspects of a method and system for a single antenna receiver system for W-CDMA are provided and may comprise computing channel estimates based on received multipath signals. Timing correction signals indicating a location of the received multipath signals may be gen... | 09/20/2011 |
| 8018987 | Transmitting spread signal in communication system The present invention provides for spreading a first signal using a plurality of spreading codes, multiplexing the first spread signal by code division multiplexing, transmitting the first multiplexed signal via a plurality of neighboring frequency resources of an O... | 09/13/2011 |
| 8018986 | Signal receiving apparatus including equalizer, terminal apparatus, signal receiving method, and signal receiving program A signal receiving apparatus which can reduce a circuit scale to reduce a cost in a mobile wireless communication system which transmits and receives a spread spectrum signal is provided. The signal receiving apparatus includes a filter coefficient updating u... | 09/13/2011 |
| 8018985 | CDMA receivers for the golden code A Generalized Rake (G-Rake) receiver is adapted for Golden code reception in a CDMA system. Signals transmitted by two or more transmit antennas are received at two or more receiver antennas. The signal from each receiver antenna is despread, and channel estimation ... | 09/13/2011 |
| 8009722 | Multi-pass parameter estimation for G-Rake receiver In a parametric G-Rake receiver, a method an apparatus computes initial estimates of one or more scaling parameters and initial combining weights for the parametric G-Rake receiver; estimates the SINR of a received signal based on a mean pilot symbol estimate and th... | 08/30/2011 |
| 8000378 | Narrow correlator technique for multipath mitigation The present invention provides systems and methods for implementing narrowly spaced correlators to mitigate multipath error, and systems and methods for adaptively changing the correlator spacing for varying multipath conditions. In an embodiment, two sets of correl... | 08/16/2011 |
| 8000379 | Radio communication apparatus An object of the invention is to stabilize the convergence operation at the automatic impedance matching time and ensure the reception quality in the convergence process in a fading environment in a radio communication apparatus which performs automatic impedance ma... | 08/16/2011 |
| 7995640 | Dynamic interpolation location Apparatus and method for optimizing interpolation in the despreader data-path of a wireless telecommunications network employing Code Division Multiple Access (CDMA) technology. A base station dynamically evaluates its configuration to determine an interpolator loca... | 08/09/2011 |
| 7991041 | Iterative detection and cancellation for wireless communication Techniques for recovering a desired transmission in the presence of interfering transmissions are described. For iterative detection and cancellation, multiple groups of code channels are formed for a plurality of code channels for at least one sector. Processing is... | 08/02/2011 |
| 7983323 | Method and system for managing, controlling, and combining signals in a frequency selective multipath fading channel Aspects of a method and system for managing, controlling and combining signals in a frequency selective multipath fading channel are presented. Aspects of the system may comprise a searcher that detects a maximum signal energy level among at least one of a plurality... | 07/19/2011 |
| 7978750 | Microcontroller A microcontroller is disposed on a receiving part of a wireless system in order to process a demodulation signal generated by a receiver circuit, and includes a memory and a CPU. The memory stores a control program of the microcontroller. The control program thereof... | 07/12/2011 |
| 7978751 | Interpolating GRAKE with two step delay hypothesis testing The present invention provides a method and apparatus for adapting a current path delay estimate for path delay tracking. In order to determine the path delay an operating mode is selected and a set of hypothesized path delays are determined based on said operating ... | 07/12/2011 |
| 7974331 | Rake receiver with individual finger compensator(s) Rake receivers in code division multiple access (CDMA) telecommunication comprise fingers (1,2,3) with each finger processing signal components for a particular transmission path to be able to better synchronize with a RF signal received via different paths, ... | 07/05/2011 |
