Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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 |
| 7428541 | Computer system, method, and program product for generating a data structure for information retrieval, and an associated graphical user interface A computer system for generating data structures for information retrieval of documents stored in a database. The computer system includes: a neighborhood patch generation system for defining patch of nodes having predetermined similarities in a hierarchy structure.... | 09/23/2008 |
| 7370250 | Test patterns to insure read signal integrity for high speed DDR DRAM A test method and implementation is described to test an internal data path within a DDR DRAM during a read operation. A worse case test sequence and a compliment of the worse case test sequence is stored within memory. The test sequence and its compliment are arran... | 05/06/2008 |
| 7349932 | High performance FIR filter A filter includes a tap multiplication circuit and a tap digital-to-analog (“DAC”) unit coupled to the tap multiplication circuit. Further, a plurality of clocks are provided that control timing associated with the tap multiplication circuit and that permit one ... | 03/25/2008 |
| 7346639 | Method and apparatus for suppressing limit cycles in noise shaping filters Harmonic interference caused by limit cycles occurs in the resultant signals of filters for noise conversion as a consequence of limit cycles. A feedback loop is connected downstream of the actual filter and is used to effectively suppress the limit cycles. A feedba... | 03/18/2008 |
| 7340019 | Programmable filter Briefly, in accordance with one embodiment of the invention, a programmable filter may implement an infinite impulse response filter so that a transceiver in which the filter is utilized may be programmable to operate in one or more modes in accordance with one or m... | 03/04/2008 |
| 7319659 | OFDM receiver, mode detector therefor, and method for processing OFDM signals A method of mode detection for OFDM signals. The method comprises the steps of delaying the OFDM signal for a first and second number of samples, multiplying the two delayed signals by coefficient signals, and deriving a sum of the two products, deriving an error si... | 01/15/2008 |
| 7292656 | Signal pulse detection scheme for use in real-time spectrum analysis A spectrum analysis engine (SAGE) that comprises a spectrum analyzer component, a signal detector component, a universal signal synchronizer component and a snapshot buffer component. The spectrum analyzer component generates data representing a real-time spectrogra... | 11/06/2007 |
| 7240207 | Fingerprinting media entities employing fingerprint algorithms and bit-to-bit comparisons A system and methods for the creation, management, and distribution of media entity fingerprinting are provided. In connection with a system that convergently merges perceptual and digital signal processing analysis of media entities for purposes of classifying the ... | 07/03/2007 |
| 7228280 | Finding database match for file based on file characteristics A signature array of digitally sampled audio is formed from segment(s) of the digitally sampled audio by counting the number of occurrences within the segment(s) in each of a plurality of value bands or slots, such as amplitude bands. The signature array undergoes a... | 06/05/2007 |
| 7194093 | Measurement method for perceptually adapted quality evaluation of audio signals A measurement method for evaluating the disturbances in an audio signal or test signal (1a, b) by comparing it to an undisturbed reference signal (1c, d). After being prefiltered (2) using the transfer functions of the outer and mi... | 03/20/2007 |
| 7191100 | Method and system for predictive physiological gating of radiation therapy A method and system for physiological gating for radiation therapy is disclosed. A method and system for detecting and predictably estimating regular cycles of physiological activity or movements is disclosed. Another disclosed aspect of the invention is directed to... | 03/13/2007 |
| 7174293 | Audio identification system and method A method and system for direct audio capture and identification of the captured audio. A user may then be offered the opportunity to purchase recordings directly over the Internet or similar outlet. The system preferably includes one or more user-carried portable au... | 02/06/2007 |
| 7158541 | Signal synchronization method and receiver device for packet communication A receiver device for a packet communication system receives a packet signal appended at its head with a known number (N) of repetition signals. A correlation value of a received signal is outputted from a normalizing correlator and compared with a threshold value i... | 01/02/2007 |
| 7080253 | Audio fingerprinting A system and methods for the creation, management, and distribution of media entity fingerprinting are provided. In connection with a system that convergently merges perceptual and digital signal processing analysis of media entities for purposes of classifying the ... | 07/18/2006 |
| 7065544 | System and method for detecting repetitions in a multimedia stream Large amounts of multimedia data are transmitted over information networks in the form of a digital stream, analog video, or text captioning. Often, repetitions such as paid advertisements, theme music at the commencement of a TV broadcast, and common jingles and sl... | 06/20/2006 |
| 7051063 | Integrated low power channel select filter having high dynamic range and bandwidth A channel select filter circuit is disclosed using a current-mode transconductance-capacitor (gm-C) architecture, which is tuned by digitally controlled capacitor arrays. The main filter includes at least one transconductor-capacitor (gm-C) filter and a transresista... | 05/23/2006 |
| 7039139 | System for increasing digital data demodulator synchronization timing resolution using training sequence correlation values A demodulator for demodulating digital data includes a receiver for receiving a digital data signal, a determining device to determine if a fractional sample delay added to a demodulator's symbol sampling timing would improve synchronization timing, an implementing ... | 05/02/2006 |
| 7028070 | High speed filter An electronic filter operates as a correlator that provides a discrete approximation of an analog signal. The analog to digital conversion is integrated directly approximation calculation. An array of sample and hold circuits or single bit comparators provide output... | 04/11/2006 |
| 7010559 | Method and apparatus for a parallel correlator and applications thereof A fast correlator transform (FCT) algorithm and methods and systems for implementing same, correlate an encoded data word (X0-XM-1) with encoding coefficients (C0-CM-1), wherein each of (X0-XM-1) is r... | 03/07/2006 |
| 6996291 | Systems and methods for correlating images in an image correlation system with reduced computational loads After one or both of a pair of images are obtained, an auto-correlation function for one of those images is generated to determine a smear amount and possibly a smear direction. The smear amount and direction are used to identify potential locations of a peak portio... | 02/07/2006 |
| 6993458 | Method and apparatus for preprocessing technique for forecasting in capacity management, software rejuvenation and dynamic resource allocation applications A system and method preprocesses data, in a computer system where forecasting of computing resources is performed based on past and present observations of measurements related to the resources. The preprocessing includes decomposing the past and present observation... | 01/31/2006 |
| 6990435 | Tactile sensing method and system A system for detecting tactile information includes strain-gauge touch sensors and a controller. Based on the sum output from each of tough-sensor sensor units, an analyzer in the controller calculates touch force Fi(t) at each measurement point. An autom... | 01/24/2006 |
| 6959266 | Method and system for predictive physiological gating of radiation therapy A method and system for physiological gating for radiation therapy is disclosed. A method and system for detecting and predictably estimating regular cycles of physiological activity or movements is disclosed. Another disclosed aspect of the invention is directed to... | 10/25/2005 |
| 6925399 | Methods and systems for the estimation of the injection point of foreign signals in a network A method and system for estimating the location of an injection point of foreign signals in a network comprises the steps of measuring signal samples at two points along the cable network distribution system, correlating the two signal samples to estimate propagatio... | 08/02/2005 |
| 6895362 | Active broken rail detection system and method A system to monitor the integrity of a railway track is provided. The system comprises a mechanical signal source and a correlation detector. The mechanical signal source coupled to the railway track and is configured for generating a mechanical signal pulse train o... | 05/17/2005 |
| 6829625 | Correlation value calculating device A correlation value calculating device which has a small scale of circuitry, and allows template vectors to be rewritten. One template vector is written to one row of DRAM memory cells. One memory cell pair is used for storing one template vector component. A high-l... | 12/07/2004 |
| 6701028 | Method and apparatus for fast signal convolution using spline kernel A fast convolution method applicable to convolve a signal with a smooth kernel that can be approximated by a spline kernel, and a system configured to perform such method using software or signal processing circuitry. Unlike Fourier-based convolution meth... | 03/02/2004 |
| 6681220 | Reduction and optimization of information processing systems Techniques for arranging operations performable on information in an information processing system are provided. In a system having a plurality of information producers and a plurality of information subscribers, paths are identified over which informatio... | 01/20/2004 |
| 6622117 | EM algorithm for convolutive independent component analysis (CICA) In connection with blind source separation, proposed herein, inter alia, are: expectation-maximization equations to iteratively estimate unmixing filters and source density parameters in the context of convolutive independent component analysis where the ... | 09/16/2003 |
| 6594595 | Apparatus for and method of measuring cross-correlation coefficient between signals Timing jitter sequences Ɗ$c;j [n] and Ɗ$c;k [n] of respective clock signals under measurement xj (t) and xk (t) are obtained, and a covariance ςtj,tk =(1/N)Σi=1NƊ$c;.sup.... | 07/15/2003 |
| 6456646 | Methods and systems for detecting codewords with intersymbol interference and imperfect timing Methods and systems are provided whereby correlations between a received signal sample set and a plurality of potential codeword data set are determined and a potential codeword with the highest correlation value is selected as the decoded codeword. The c... | 09/24/2002 |
| 6434488 | Alignment free methodology for rapid determination of differences between a test data set and known data sets A method for generating data characterizing an item described by an ordered string of characters, comprises the steps of: (i) for a set of separation metrics each representing a unique number of positions of separation between arbitrary characters in a ch... | 08/13/2002 |
| 5930157 | Autocorrelation coefficient operator having analog circuit element The autocorrelation coefficient operator 60 carries out an integration operation to determine the autocorrelation coefficient for audio signal processing or other types of signal processing at high speed with low power consumption. The input signal S is d... | 07/27/1999 |
| 5896304 | Low power parallel correlator for measuring correlation between digital signal segments Correlation between a pair of digital signal segments is measured by apparatus including a plurality of multipliers. Each of the multipliers produces the product of a respective sample of each one of the signal segments. The outputs of a plurality of digi... | 04/20/1999 |
| 5623431 | Aligning a given signal with a corresponding reference signal A segment of a given signal is aligned with a corresponding reference segment by passing the reference segment through a full-wave rectifier (8), an anti-alias filter (10) and a first sampler (9), and storing the result in a first register (19). The outpu... | 04/22/1997 |
| 5579014 | Parallel correlator for global positioning system receiver A correlator for identifying global positioning satellites includes an antenna at a central location for receiving signature signals from a plurality of the satellites. Each received signal is converted from analog to digital form. A filter is employed to... | 11/26/1996 |
| 5574889 | Apparatus for selecting and evaluating design based on stored information The invention is a design evaluation apparatus for evaluating a design composed of a plurality of design elements. The apparatus has a database stored therein. The database contains design elements, evaluation terms and a table defining relations of the r... | 11/12/1996 |
| 5565764 | Digital processing method for parameter estimation of synchronous, asynchronous, coherent or non-coherent signals The parameters of a digital signal are extracted by the application of autocorrelation and crosscorrelation techniques to effectively measure the frequency and time behavior of a digital signal. The method employs digital autocorrelation and crosscorrelat... | 10/15/1996 |
| 5555514 | Method of and apparatus for generating doppler sounds Method and apparatus for generating Doppler sounds, even when there are segmented Doppler modes, wherein I and Q components of a Doppler signal are respectively converted into left and right sound signals in accordance with Hilbert transformation, then, a... | 09/10/1996 |
| 5523758 | Sliding correlator for nanosecond pulses A digital sliding correlator having means for producing a series of time-shifted stored copies of a digital character, means responsive to said shifted, stored copies of the character for multiplying said shifted, stored copies by the input signal or the ... | 06/04/1996 |
