Class 708/202 - Median

Subclass of Class 708 - Electrical computers: arithmetic processing and calculating
Definition: Subject matter wherein the particular function provides
No. of patents: 32
Last issue date: 07/22/2008

Number	Title	Issue Date
7403666	Apparatus and method of filtering digital information A filtering apparatus calculates a median of image data that includes nine pixel values arranged in a window of 3*3. First, an input circuit receives as an input the image data, divides the data into groups each having three pixels, and outputs. The pixel values of ...	07/22/2008
7242808	Method and apparatus for analysis of variables Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). It is a method, processes, and apparatus for measurement and analysis of variables of different type and origin. AVATAR offers an...	07/10/2007
7219111	Numeric value search apparatus and numeric value search method The objective is to realize a numeric value search apparatus and numeric value search method capable of rapidly searching for a numeric value of a prescribed rank. The present invention is characterized in that it comprises the following: a storage unit which...	05/15/2007
7152081	Methods for efficient filtering of data An apparatus and method for filtering data that include retrieving a plurality of data samples from memory; computing a locus of the samples; computing a distance between an input value and the locus; comparing the distance between the input value and the locus with...	12/19/2006
7072921	Device for determining the rank of a sample, an apparatus for determining the rank of a plurality of samples, and the ith rank ordered filter A rank-determining device determines the rank of a particular sample value from a set of digital sample values by utilizing two different thresholders that are implemented by comparators. The rank of the sample value is decomposed by thresholding the sample value wi...	07/04/2006
7028066	Vector SIMD processor A data processor whose level of operation parallelism is enhanced by composing floating-point inner product execution units to be compatible with single instruction multiple data (SIMD) and thereby enhancing the operation processing capability is made possible. An o...	04/11/2006
7003535	Median determination apparatus and method The present invention is of a method and apparatus for processing an image comprising a data set of size M (more generally, for determining the median of any data set of size M), comprising receiving each value of the data set as a weighted set of binary digits; add...	02/21/2006
6941332	Implantable medical device fast median filter A method for fast median filtering in an implantable medical device is disclosed that provides rapid filtering using computational mechanisms with following elements. A new sample value is received into a buffer. An oldest sample value location is identified in a MI...	09/06/2005
6931513	Data converter with statistical domain output An integrated circuit having statistical processing capability. The integrated circuit has an input for receiving input data in a first data domain. A data converter is provided for converting received input data from the first domain to a second domain different fr...	08/16/2005
6831453	Determining the magnitude of pulses The magnitude of a pulse in a signal having both positive and negative polarity pulses (for example, a ternary PDH signal) is determined by measuring the magnitude of multiple samples of the signal. A reference level for the signal is determined from a plurality of ...	12/14/2004
6760737	Spatial median filter A spatial median filter determines a median of a plurality of values by dividing the plurality of values into a plurality of groups of values. The values in each of the groups are sorted to determine its median. Then, the medians of the plurality of groups are fully...	07/06/2004
6754684	Method and apparatus for median filter on SIMD architecture digital data processor The invention provides improved methods and systems for rapidly performing a median filter calculation for a value at a predetermined position in a matrix of values representing a neighborhood about the predetermined position. The method includes ordering the values...	06/22/2004
6687413	Signal processing apparatus A system to minimize the number of comparison and rearrangement operations and increase the processing speed with a small circuit scale utilizing a median filter in the form of hardware. A signal processing apparatus for performing, when a region to be su...	02/03/2004
6430319	Data conversion processing circuit A data conversion processing circuit which effects processing for data conversion which projects two-dimensional data on a plurality of straight lines with different inclinations. The data conversion processing circuit includes a circuit unit for storing ...	08/06/2002
6115727	Time-weighted trimmed-mean filtering apparatus and method An apparatus and method of filtering at least one set of data comprises determining a subset of Q data elements of a set of L data elements (12), and determining a filtered value based upon the subset of Q data elements (14). Each of the subset of Q data ...	09/05/2000
6018750	Fast and efficient median search method and filter A fast and efficient median search method and filter searches a dynamically changing time-ordered list of data samples for a data sample representing the arithmetic median of the list. Embodiments include a method to reduce the number of memory access ope...	01/25/2000
5968111	Circular median filter A circular median filter outputs a median value among data expressed as angles as well as magnitudes. If external new data is input to the circular median filter, a plurality of median cells delete the firstly input data among a plurality of prestored dat...	10/19/1999
5900006	Median filtering method and apparatus using a plurality of processing elements An apparatus for median filtering a sequence of input values comprises (N+1) number of processing elements coupled in series for storing (N+1) number of input values included in a values group and providing a median value thereof, N being a positive even ...	05/04/1999
5408675	Programmable rank order filter A hardware implementation of a rank order filter includes inputs for inputting a window parameter or window size signal and a target rank signal, thereby permitting programming of the rank order filter to perform rank order filtering within any specified ...	04/18/1995
5144568	Fast median filter A fast median filter is disclosed for filtering high frequency noise from signals, such as, signals from a radio altimeter. The filter continuously provides the median of a predetermined number of points of the signal, which are received in an array, by s...	09/01/1992
5138567	Median filter In a median filter, signals received at the input are fed to a cascade of delay elements whose number is equal to the degree N of the median filter. The signals at the outputs of the delay elements which preceded the signal received at the input are fed t...	08/11/1992
4951242	Median filters having modules for receiving the current value of an incoming digital signal A median filter includes a number of identical modules each arranged simultaneously to receive the current value of an imcoming digital signal. Each module includes a feedback shift register of special design enabling it to be set to receive its input to ...	08/21/1990
4802108	Circuit for providing a select rank-order number from a plurality of numbers A method and apparatus for performing bit operations on a plurality of sample value numbers arranged in binary format to derive a select rank-order number. The bit operations are performed first on all the most significant bits of the sample value numbers...	01/31/1989
4713786	Digital hardware selection filter A sort selection (e.g. median) filter for selectively sorting any data value within a set of N data values, processes all the data values by bit position, making a determination as to possible candidates for the data value to be sorted from the set on the...	12/15/1987
4672567	Median filter for reducing data error in distance measuring equipment A set containing an odd number N of successive raw range data samples from precision distance measuring equipment is established. The set is arranged in ascending order of sample magnitude. The median member of the ordered set, i.e. the (N-1/2+1 member, i...	06/09/1987
4560974	Real-time ordinal-value filter utilizing reference-function comparison Operating at real-time data rates, the disclosed hardware network generates a signal which closely approximates the Mth-largest of a set of R input data signals. The operational basis of this network is a comparison (121-127) between the input data (101-1...	12/24/1985
4551817	Device for detecting center position of two-dimensionally distributed data A device capable of obtaining, without data scanning by a computer, information of the center position and, if desired the total sum of two-dimensionally distributed data generated as outputs from a matrix of sensors arranged along X- and Y-axes. The devi...	11/05/1985
4513440	Hardware median filter A hardware median filter, particularly useful for processing high resolutions imagery data is coupled to a set of line buffers to which pixel data for an image of interest is applied, to define a segment or window within the overall image. This multibit d...	04/23/1985
4456968	Real-time ordinal-value filter utilizing half-interval ranking A hardware logic network, operating at real-time data rates, generates a signal which matches the Mth-largest signal of an input data set. To accomplish this signal-matching, the network utilizes an iterative series of value adjustments which cause an int...	06/26/1984
4441165	Real-time ordinal-value filters utilizing complete intra-data comparisons Operating at real-time data rates, the disclosed hardware apparatus determine which one of a set of R input data signals is the Mth-largest. Mutual comparisons between the data values themselves provides the basis for the mechanized determination schemes....	04/03/1984
4439840	Real-time ordinal-value filters utilizing partial intra-data comparisons Operating at real-time data rates, hardware logic networks (FIGS. 3-6) receive onto a data-channel array (390 in FIG. 3) a set of unordered input data values and iteratively pair-wise transpose the set members until their positional order on the array coi...	03/27/1984
4135248	Median extractor A system for processing a set of M base-one coded digital data words each having a capacity of N-bit levels for extracting a desired threshold data word therefrom is disclosed. An array of N M-stage shift registers are arranged to sequentially store each ...	01/16/1979

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Class 708/202 - Median