Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8175137 | Method of processing a digital signal derived from a direct-sequence spread spectrum signal In a GNSS receiver data sequences derived from a digital signal each with an internally generated correlation sequence derived from a basic sequence and mixed with frequency signals corresponding to various Doppler frequencies and in various phase positions with res... | 05/08/2012 |
| 8170087 | Correlation coprocessor Apparatus and method for providing correlation in a CDMA receiver. A Generic Correlation Coprocessor comprises one or more correlation blocks. Each correlation block comprises a correlation input buffer coupled to one or more correlators. The correlators are coupled... | 05/01/2012 |
| 8170086 | Method and apparatus for performing signal correlation A method of computing a correlation between a pseudorandom reference code and a satellite signal is provided. The method comprises receiving a satellite signal having a repeating code modulated thereon, wherein the satellite signal comprises a pseudorange; correlati... | 05/01/2012 |
| 8170085 | Multipath error estimation in satellite navigation receivers The invention presented in this disclosure gives methods to estimate and compensate for the multi-path in a typical navigational or spread spectrum receiver. The multi-path delay is estimated based on the outputs of different correlators of the receiver. Unlike thre... | 05/01/2012 |
| 8149900 | Low complexity acquisition method for GNSS A low complexity acquisition method and a receiver implemented such a method are disclosed. In the present invention, a cyclical shifted-and-combined (CSC) code is generated by intercepting sub-codes from a full code and combining the sub-codes with an equal gain. T... | 04/03/2012 |
| 8144751 | Satellite signal receiver apparatus and satellite signal reception method A satellite signal receiver apparatus by which the hardware scale can be suppressed while high speed synchronization is assured. A carrier frequency component is removed from a satellite signal. Then, adding those of signals obtained after every period interval of s... | 03/27/2012 |
| 8144752 | Method and device for receiving a BOC modulation radio-navigation signal Disclosed is a receiver and a method for receiving a radio-electric navigation signal modulated by a carrier at a frequency fp, a sub-carrier at a frequency fsp and a pseudo-random code at a frequency fc, in which the radio-electric ... | 03/27/2012 |
| 8144754 | Method for detecting the presence of spread spectrum signals The present invention relates to a method for detecting the presence or the absence of a spread spectrum signal in a frequency band of interest of a received signal, wherein: the autocorrelation function of said received signal is ... | 03/27/2012 |
| 8144753 | Detection device of a spreading code and a timing, and a method thereof An A/D converted and inputted signal is stored in a memory. A sliding correlator sequentially reads the signal stored in the memory and despreads this signal. A despreading timing is adjusted and then the candidate for a despreading code is outputted from a code gen... | 03/27/2012 |
| 8125383 | Positioning method, program thereof, and positioning device A positioning method includes (a) adding cumulatively each of an I component and a Q component of a received signal of a positioning signal per polarity, the positioning signal being spread-modulated with a spread code reversed in polarity by a navigation data, (b) ... | 02/28/2012 |
| 8116355 | Method of selecting echoes of a signal for assignment to fingers of a Rake receiver and corresponding Rake receiver A method is provided for processing a signal emanating from a multi-path transmission medium. A number L of echoes of the signal received are detected, with L being greater than the number N of fingers of a “Rake” receiver, and there are selected N echoes from a... | 02/14/2012 |
| 8111736 | Rapid acquisition methods and apparatus for GPS signals A method and apparatus for receiving a signal from transmitters such as GPS satellites, for fixing the location of the receiver. Each of the transmitted signals includes a unique periodically-repeating sequence. A received signal is stored by the receiver for at lea... | 02/07/2012 |
| 8111735 | GNSS data/pilot correlator and code generator thereof A correlator for a GNSS receiver and a code generator used in the correlator as well as a correlation method are disclosed. In the GNSS, each satellite transmits a data signal and a pilot signal. The correlator is adaptable for executing correlation to the data sign... | 02/07/2012 |
| 8107513 | Differential detection unit for the zigbee 802.15.4 standard In one embodiment, a detection unit includes a sequence providing unit to provide a third group of derived sequences. The sequence providing unit has a counting unit and multiplexers connected to the counting unit. Fixed values are applied at the inputs of the multi... | 01/31/2012 |
| 8102900 | Method and apparatus for efficient gold code generation and management in WCDMA systems A method and an apparatus for efficient Gold code generation and management in WCDMA systems are presented. Aspects of the method may include simultaneously generating, based on the codeword sequence, a plurality of scrambling code segments associated with a scrambl... | 01/24/2012 |
| 8098716 | Method and apparatus for providing an energy-based signal tracking loop A method and apparatus for tracking a signal comprises correlating a digital signal with a code using a hypothesis at a plurality of frequencies and at least one delay to produce correlation results, measuring an energy value of the correlation results, adjusting at... | 01/17/2012 |
| 8098717 | Hybrid equalizer A method for communication includes receiving signals at a receiver from multiple sources, including a target signal transmitted by a given transmitter, and estimating a channel response from the given transmitter to the receiver. A filter response is computed by ta... | 01/17/2012 |
| 8094071 | Method of reception and receiver for a radio navigation signal modulated by a CBOC spread wave form Disclosed is a method for receiving a radionavigation signal modulated by a composite waveform, the composite waveform comprising a linear combination with real-valued coefficients of a BOC(n1,m) component and a BOC(n2,m) component, n1 | 01/10/2012 |
| 8094702 | System and/or method for detecting multi-tone jamming The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response ... | 01/10/2012 |
| 8081673 | Systems and methods for processing spread spectrum signals Systems and methods are disclosed for processing at least two spread spectrum signals that at least partially overlap in time and in frequency. A main correlator bank with a trip detection component can determine a PN code phase for each of the spread spectrum signa... | 12/20/2011 |
| 8064500 | Correlation calculation control circuit and correlation calculation control method A coherent integration section synthesizes an IF signal stored in a memory and a C/A code replica generated by a code generation section using a mixer to calculate a correlation value, and integrates the correlation value using an integration section. An integration... | 11/22/2011 |
| 8059700 | Method of processing positioning signals, in particular for indoor applications A method of processing positioning signal constituted by a superposition of individual signals generated by a plurality of emitters, in particular satellite emitters, comprising:—a first step of coarse acquisition of said individual signals, comprising correlation... | 11/15/2011 |
| 8059698 | Method of processing a digital signal derived from an analog input signal of a GNSS receiver, a GNSS receiver base band circuit for carrying out the method and a GNSS receiver An acquisition unit of a GNSS receiver base band circuit comprises a correlator (40) with a correlator shift register (43) to which a correlation sequence derived from a basic sequence characteristic for a satellite is fed by a code generator (41 | 11/15/2011 |
| 8059701 | Flexible and in-band signaling for nested preamble A multi input multi output (MIMO) receiver is disclosed for transmitting and receiving packets having a preamble format of a packet of information and having a short training sequence (STS), a long training sequence (LTS) and signal (SIG) for training receivers, in ... | 11/15/2011 |
| 8059699 | Low power consumption GNSS receiver and method thereof Disclosed is a low power consumption GNSS receiver by adaptively adjusting clock frequency. A correlator performs correlations to signals received from the channels with a correlator clock frequency. A DSP controls the correlator clock frequency according to a corre... | 11/15/2011 |
| 8040938 | Method and apparatus for extended least squares estimation for generalized rake receiver parameters using multiple base stations Exemplary combining weight generation is based on estimating received signal impairment correlations using a weighted summation of interference impairment terms, such as an interference correlation matrix associated with a transmitting base station, and a noise impa... | 10/18/2011 |
| 8027375 | Shared filter design for pilot symbol averaging in rake fingers in WCDMA systems A rake receiver having a shared moving average filter that is operable in a multiplexed manner to receive and filter outputs from a plurality of pilot signal correlators. ... | 09/27/2011 |
| 8022869 | Apparatus and method for cross-correlation spur mitigation An apparatus and method for cross-correlation spur mitigation comprising choosing from a plurality of peak measurements, a first peak measurement with a first carrier-to-noise density estimate and a first Doppler offset measurement, and a second peak measurement wit... | 09/20/2011 |
| 8018988 | Method of validating the detection of a correlation peak by a satellite positioning system receiver The present invention relates to a method of validating the detection of a correlation peak between a signal transmitted by a plurality of navigation satellites and received by an RNSS satellite radio navigation receiver, said signal corresponding to a sum of signal... | 09/13/2011 |
| 8009724 | Clear channel assessment (CCA) for UWB communications system Clear channel assessment (CCA) is a very important issue in Ultra-Wideband (UWB) systems. An effective CCA mechanism will have a large impact on the overall throughput of the communications system. It is disclosed methods and circuits to carry out CCA determinations... | 08/30/2011 |
| 8005129 | Acquisition circuit for low chip rate option for mobile telecommunication system A User Equipment (UE) receives and samples communication signals, where the communication signals have a time frame format, a transmission chip rate and a synchronization code associated with a time slot that includes a midamble that indicates a modulation of the sy... | 08/23/2011 |
| 8000381 | Unbiased code phase discriminator A feedback control law steers a reference phase that tracks the phase of a received code sequence. The reference phase clocks a track-reference signal consisting of a series of correlation kernels, over which data is extracted and then summed in various combinations... | 08/16/2011 |
| 8000380 | Detection unit and method for the detection of data symbols A detection unit is disclosed for the detection of data symbols contained in a demodulated signal, whereby band spreading occurs transmit-side with the use of first sequences, whose first chips each assume one of two different first values. The detection unit compri... | 08/16/2011 |
| 7995641 | Method and apparatus for code power parameter estimation for received signal processing As taught herein channelization code power estimates are generated for a number of data channels in a received CDMA signal based on a joint determination process. Joint processing in this context yields improved estimation of data channel code powers and correspondi... | 08/09/2011 |
| 7991043 | Hybrid polyphase and joint time-frequency detection A demodulator in a receiver includes a correlator (240) for de-spreading a spread-spectrum signal, and a decision module (250) for detecting a preamble and for synchronizing to data frames of the spread spectrum signal. The demodulator includes symbol ... | 08/02/2011 |
| 7991042 | GNSS receiver and method for GNSS memory code generation The invention provides a Global Navigation Satellite System (GNSS) receiver. In one embodiment, the GNSS receiver comprises a memory, a buffer, a correlator, and a selector. The memory stores a memory code and outputs a portion of the memory code as a first code seg... | 08/02/2011 |
| 7983325 | Decoding of the overhead channels of the geosynchronous (GEO) satellite reverse link A power efficient technique is used to demodulate the coded overhead channels of a geosynchronous (GEO) satellite uplink. A coherent receiver used in a wireless communication system is able to determine the information conveyed in the overhead channel, by effecting ... | 07/19/2011 |
| 7983324 | Symbol boundary acquisition apparatus and method thereof The present invention relates to a symbol acquisition apparatus and a method thereof. The method includes: determining a first boundary according to a first preamble symbol and generating a first confidence value according to signal quality of the first preamble sym... | 07/19/2011 |
| 7970043 | Searcher for multiple orthogonal channels with known data—WCDMA step2 search A circuit and algorithm are disclosed for a step2 search of a three step search of synchronization channels in a W-CDMA system. A mobile terminal of the CDMA system includes an RF downconverter for receiving I and Q signals. A searcher, responsive to the I and Q sig... | 06/28/2011 |
| 7949038 | Method and system for resolving the acquisition ambiguity and the problem of false lock in tracking BOC(m,n) modulated signals, particularly for satellite positioning/navigation systems A method and a system for the acquisition and tracking of BOC(m,n) modulated codes, m/n equal to an integer, in which a correlation function is calculated of the BOC(m,n) modulated code received from a remote transmitter with a code wa locally generated a... | 05/24/2011 |
