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| Number | Title | Issue Date |
| 7962541 | Optimization of spectrum extrapolation for causal impulse response calculation using the hilbert transform A causal impulse response function is calculated from a truncated spectrum by extending the real part of the spectrum beyond the truncation frequency and computing the imaginary part with the Hilbert transform to enforce causality. The out of band extrapolation is o... | 06/14/2011 |
| 7925685 | Driver for a function unit parametrized by a number of input variables A control system, a method of operating the same, and a method for setting up the same are disclosed for simplified driving of a function unit parametrized by a plurality of input variables. The control system includes a setting unit and a control unit, the setting ... | 04/12/2011 |
| 7921146 | Apparatus, system, and method for interpolating high-dimensional, non-linear data An apparatus, system, and method are disclosed for interpolating data. A cluster module locates a plurality of variable granularity data clusters within a source data set using a center selection/clustering algorithm. A conversion selection module selects a conversi... | 04/05/2011 |
| 7840623 | Interpolator and designing method thereof Interpolation of signed values A and B is efficiently performed by simple circuitry. To calculate an interpolated value C based on a 4-bit values A (bits a3a2a1a0) and B (bits b3b2b1b0... | 11/23/2010 |
| 7818359 | Direct digital synthesizer, direct digital synthesizer for transmission and detection, and MRI apparatus In order to output amplitude data with the clock frequency higher than the clock frequency of phase data, the direct digital synthesizer for transmission and detection comprises: a transmitting phase for outputting a first phase data with a first clock frequency; a ... | 10/19/2010 |
| 7702709 | System and method for optimizing approximation functions Systems and methods that optimize approximation functions are provided. In one example, a method that approximates a particular expression over a sample space of input values is provided. The method may include the steps of splitting the sample space of the input va... | 04/20/2010 |
| 7443219 | Phase interpolation apparatus, systems, and methods A phase interpolator circuit may comprise a multiplexer circuit (MUX) coupled to a plurality of clock signals at MUX inputs and may provide a first clock signal and a second clock signal at MUX outputs that are out of phase with each other, a digital to analog conve... | 10/28/2008 |
| 7414550 | Methods and systems for sample rate conversion and sample clock synchronization The architecture for a combined universal sample rate converter and a sample clock synchronizer is presented. The universal sample rate converter can be applied, for example, to audio samples created or mixed using any of the standard audio frequencies in the set H=... | 08/19/2008 |
| 7412477 | Interpolation of signals from a delay line Method and apparatus for interpolation of signals from a delay line is described. An input signal is obtained from which progressively delayed input signals are generated from the input signal. Two of the progressively delayed input signals are accessed and interpol... | 08/12/2008 |
| 7411531 | Methods and apparatus for asynchronous sampling of a received signal at a downsampled rate Methods and apparatus are provided for decimated interpolated clock/data recovery (ICDR) to perform asynchronous sampling of a received signal. A received signal is converted to a plurality of digital samples at a downsampled rate that is lower than a rate of the re... | 08/12/2008 |
| 7403963 | Re-sampling with an arbitrary scaling ratio A simple to implement sample rate conversion system consisting of an input/output data flow controller, interpolation coefficient generation, and output data flow control to generate the converted data stream. Sample rate conversion may be done at real time video ra... | 07/22/2008 |
| 7391933 | Method and apparatus for image interpolation based on adaptive polyphase filters An interpolation system interpolates image positions in an original image to produce an interpolated output image, wherein the original image is represented by digital input pixel data. A first filter with a sharp interpolation characteristic, that interpolates a se... | 06/24/2008 |
| 7378996 | Sampling rate conversion calculating apparatus There provided is a low-cost, high performance sampling rate conversion calculating apparatus which achieves both a low delay characteristic required for conversational voice data and high quality required for audio data in a concurrent manner. A first digital signa... | 05/27/2008 |
| 7373013 | Directional video filters for locally adaptive spatial noise reduction Spatial noise is reduced in an image having a plurality of pixels by detecting object boundaries and unstructured areas in the image and applying 3-tap high pass filters to each pixel in the image in at least four, but less than eight directions to determine the bes... | 05/13/2008 |
| 7366745 | High-speed function approximation Methods and apparatuses are presented for determining coefficients for a polynomial-based approximation of a function, by iteratively estimating a first coefficient, reducing the first coefficient to a lower precision to obtain a first limited-precision coefficient,... | 04/29/2008 |
| 7359469 | Signal delaying device and method for dynamic delaying of a digitally sampled signal A signal delaying device (1) for the dynamic delaying of a digitally sampled input signal comprises a memory element (2) and a series-connected interpolation element (3). According to the invention, a register (30), which can be connected... | 04/15/2008 |
| 7349936 | Interpolation method, apparatus for carrying out the method, and control program for implementing the method There is provided an interpolation method for the Volume-of-Fluid (VOF) applied to a two-phase incompressible fluid, in particular, which makes it possible to cause time evolution of a shape-describing function based on the Volume-of-Fluid (VOF) method while preserv... | 03/25/2008 |
| 7340024 | Parallel fractional interpolator with data-rate clock synchronization A circuit for single or parallel digital fractional interpolation of data samples has a fractional interpolator filter, an oscillator for outputting timing signals to the fractional interpolator filter, and a detector loop with a strobe feedback from the oscillator ... | 03/04/2008 |
| 7339503 | Adaptive asynchronous sample rate conversion A system including a buffer, a feedback loop configured to generate a fractional delay from a ratio of a first number of samples written into the buffer to a second number of samples read from the buffer, and a variable fractional delay filter configured to generate... | 03/04/2008 |
| 7332668 | Wavetable audio synthesis system The present invention relates to an audio synthesis system for performing wavetable audio synthesis. The system comprises an instrument database, an analysis module, a memory, a judgment module, and a synthesis module. The instrument database is used for storing dat... | 02/19/2008 |
| 7324598 | Apparatus and method to reduce quantization error An apparatus includes a quantizer to generate a quantized signal from an input signal and a function unit may be included to generate an output signal by applying a predetermined function to the quantized signal. The apparatus further may include a correction unit t... | 01/29/2008 |
| 7318034 | Speech signal interpolation device, speech signal interpolation method, and program A voice signal interpolation apparatus is provided which can restore original human voices from human voices in a compressed state while maintaining a high sound quality. When a voice signal representative of a voice to be interpolated is acquired by a voice data in... | 01/08/2008 |
| 7302676 | Method for debugging flowchart programs for industrial controllers A method for debugging flowchart based computer programs for industrial controllers, in particular motion controllers, wherein suspend commands are assigned to the graphical elements. Through the use of a task control mechanism in the run time system, the user may d... | 11/27/2007 |
| 7276655 | Music synthesis system The invention relates to a music synthesis system for synthesizing a corresponding digital music output according to commands from a music data file. The music data file comprises a plurality of music data units. Each music data unit records related information of t... | 10/02/2007 |
| 7272265 | Methods for performing DAF data filtering and padding A method for padding, filtering, denoising, image enhancing and increased time-frequency acquisition is described for digitized data of a data set is described where unknown data is estimated using real data by adding unknown data points in a manner that the padding... | 09/18/2007 |
| 7265870 | Colour separation method Separation of a color into values for colorants in colorant space can be done easily when color correction and color separation are done in separate steps, where the color is defined as a set of values in a trajectory space, and trajectories include points for which... | 09/04/2007 |
| 7262716 | Asynchronous sample rate converter and method An asynchronous sample rate converter interpolates and filters a digital audio input signal to produce a filtered, up-sampled first signal. A FIFO memory receives the first signal and stores samples thereof at locations determined by a write address and presents sto... | 08/28/2007 |
| 7262722 | Hardware-based CABAC decoder with parallel binary arithmetic decoding A binary arithmetic decoding apparatus includes first, second and third pairs of look-up tables and first, second and third multiplexers. The first multiplexer selects between the respective outputs of the two look-up tables of the first pair of look-up tables. The ... | 08/28/2007 |
| 7263218 | Dynamic generation of color look-up tables Creating a look-up table which converts color image data from a device-independent color space to a device-dependent color space, by determining a range of lightness values corresponding to a lightness value of a target data point in device-independent color space, ... | 08/28/2007 |
| 7224294 | Compressing device and method, decompressing device and method, compressing/decompressing system, program, record medium A compressing device comprises plural stages of delay circuits (1−1 to 4−1) and multiplying/adding circuits (5−1 to 10−1) that performs weighted addition of output data from the delay ci... | 05/29/2007 |
| 7219114 | Fast approximation to the spherical linear interpolation function A method for an accurate approximation to Slerp function that is much faster to compute on current processors. Specifically, the present invention provides a method for obtaining an interpolated quaternion comprising forming a first product of a first quaternion and... | 05/15/2007 |
| 7215440 | Fast interpolation of large color lookup tables A method for converting a specified color value from a first color space to a second color space identifies the specified color value in the first color space. A converted color space value is received from a final lookup table. The converted color space value is pr... | 05/08/2007 |
| 7203716 | Method and apparatus for fast interpolation of multi-dimensional functions with non-rectangular data sets Interpolation techniques are described for use with data that may not be uniform and may be characterized as scattered. Such data may be obtained in instances where data acquisition may not be easily controlled such as in obtaining experimental data for use with mod... | 04/10/2007 |
| 7203627 | Method for processing missing values in measured data A method for processing missing values in measured data is provided. The method includes assigning weights to measured objects or measured items, according to a priority of the measured objects or measured items; selecting a set of the measured objects and measured ... | 04/10/2007 |
| 7199837 | System for improved ratiometric expansion and method thereof A system and method are described for providing an improved ratiometric expansion of video images. Source video images are set to a lower resolution than the full resolution of a pixelated display device. The source video images are up-scaled to match the display re... | 04/03/2007 |
| 7190366 | Method and system for a general instruction raster stage that generates programmable pixel packets A method and system for a general instruction capable raster stage that generates flexible pixel packets is disclosed. In one embodiment, the rasterizing of a geometric primitive comprising a plurality of vertices wherein each vertex comprises a respective color val... | 03/13/2007 |
| 7187727 | Clock and data recovery circuit and clock control method To provide a clock and data recovery circuit which facilitates alteration of the frequency range and adjustment of characteristics. The clock and data recovery circuit includes a phase shift circuit 101 having a switch receiving as inputs multi-phase clocks f... | 03/06/2007 |
| 7185036 | Look up table based upsampling and digital filtering A system and method are disclosed for processing a signal that includes receiving encoded data including a plurality of input symbols; generating an input symbol set from the plurality of input symbols; looking up a plurality of output samples for the input symbol s... | 02/27/2007 |
| 7177889 | Methods and systems for efficient filtering of digital signals A method in a signal processor for filtering samples in a digital signal is provided. An approximate filtered sample is generated as a function of less than four samples of the digital signal. A correction is generated as a function of the less than four samples, an... | 02/13/2007 |
| 7162098 | System and method for increasing temporal and spatial capacity of systems that amplitude quantize data prior to processing A system and method for collecting relatively high resolution amplitude data with a conventional sensing device from a signal source that is sampled at a relatively low characteristic scan resolution, and then generating relatively high scan resolution, relatively l... | 01/09/2007 |
