Quantizing: Webster's Facts and Phrases

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Icon Group International, Incorporated, Dec 19, 2008 - 31 pages
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Nonfiction Usage Patent UsageAdaptive equalizing filter of reduced electric power consumption for use in communication system: Patented by Hirotaka Yamane on July 4, 1997. Abstract: In an adaptive equalizing transversal filter for quantizing a transmission waveform deformed because of communication line characteristics, a control circuit is provided for inhibiting the updating of mutiplication coefficients when an error signal between an equalized value and a quantized expected value is small, so as to omit the mutiplication operation required for obtaining the mutiplication coefficients, thereby reducing power consumption.Adaptive quantization controller: Patented by Yutaka Yokoyama on August 1, 1997. Abstract: An adder 101 computes the difference between the activity (act) of an objective block and the average value (avg(act)) of activities all over the previous frame. A shifter 102 shifts the difference by a specified bits (n). Finally, an adder 103 adds output of the shifter 102 to a reference quantizing step (Qj) determined by a code quantity control and outputs the added result as a quantizing step Mquant of the objective block.Analog to digital converter circuit: Patented by Soichi Tsumura on November 1, 1995. Abstract: An analog to digital converter circuit uses a reference voltage which increases in proportion to an intensity level of an input analog signal, or a reference signal which decreases in proportion to an intencity level of undesired signal components included in an input analog signal which AGC controlled, and thus maintains an adaptive quantizing level for a varying input signal level or a varynig desired signal level in an input signal without a DA converter.Apparatus and method for quantizing and/or reconstructing multi-dimensional digital image signals: Patented by John A. Weldy on December 1, 1989. Abstract: The method and apparatus of the present invention performs the quantization, sampling, and final digital image signal reconstruction in a way that reduces quantization artifacts such as contouring while retaining desired spatial (temporal) frequency response and resolution. The technique of the present invention features a spatially varying quantization step, a low pass filtering step, a second spatially varying quantization step, and a comparison step to determine the reconstructed signal.Apparatus for controlling quantizing in a video signal compressor: Patented by Daniel J. Reininger and Ajanta Guha on February 2, 1993. Abstract: A rate controlled VBR quantizing system includes a quantizer for quantizing partially compressed video data and further apparatus for monitoring the amount of compressed output data. Dependent upon the amount of compressed output data being lesser or greater than a predetermined value, the quantizer is conditioned to operate in a fixed quantization mode, or a mode wherein only selected blocks of data in respective frames are adaptively quantized, respectively.Apparatus for performing gradation processing on image data: Patented by Hiroshi Tanioka and Yasuhiro Yamada on April 6, 1990. Abstract: Image processing apparatus having an input device for inputting the data of an objective pixel, calculator for obtaining an average density value in a specified region and a quantizer for quantizing the data of the objective pixel based on the average density value. The entire image including its edge being effectively binarized and during serial scanning of the data continuity not being lost at the connection of scans, thereby obtaining an image with excellent gradation and resolution.Automatic Gain Control System: Patented by Jan Van sinderen and Johannes Hubertus Antonius Brekelmans on June 2, 2004. Abstract: An AGC-system for a digitally controlled analog amplifier comprises an analog level detector, a quantizer quantizing the output of the level detector and generating first and second quantizer output signals, a digital filter low pass filtering at least one of the first

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