Samsung Electronics Co., Ltd.

Boe Technology Group Co., Ltd.

Beijing Boe Display Technology Co., Ltd.

Beijing Didi Infinity Technology and Development Co., Ltd.

China Institute of Water Resources and Hydropower Research

Yuan Shi

Jaewon Lee

Yongbeom Lee

Tao Li

Shou Li

Liugang Zhou

Jianming Wang

Ji Yeun Kim

Di Xu

Hyoung Gook Kim

Xuan Zhu

Ki Wan Eom

Fuxiang Li

Yinong Li

Meijian Bai

Yonggang Xue

Zhushi Wang

Caili Wu

A driving method of a display panel, a driving circuitry of a display panel and a display device are provided. The display panel includes Y gate lines, the Y gate lines are divided into a plurality of gate line groups based on a scanning sequence of the Y gate lines, and each gate line group includes at least one gate line; the driving method includes: determining an igate line to be scanned; adjusting an original charging duration of a scanning signal corresponding to the igate line to an adjustment charging duration, where the adjustment charging duration of every gate line in each gate line group are identical, and the adjustment charging durations of respective gate line groups gradually increase in a direction away from a source driver; and outputting the scanning signal corresponding to the igate line to the igate line, based on the adjustment charging duration of the igate line.

Driving circuitry and method of display panel and display device

A system and a method are provided for determining a preliminary route. The demand information of one or more transportation services is received from a plurality of passengers, the demand information of each of the plurality of passengers including a start and a destination; determine a plurality of preliminary stop areas based on the plurality of starts and the plurality of destinations; determine at least one preliminary route passing through the plurality of preliminary stop areas.

System and method for determining routes of transportation service

A method for controlling surface irrigation comprising: measuring in real time surface water depths and water stream advancing durations of each of measuring points in a first half of a target farmland block, and substituting them into a surface irrigation model, to obtain initial values of soil infiltration parameters, substituting the initial values into the surface irrigation model, to obtain analog values of surface water depths of each of measuring points having water before a preset measuring point when the water stream in the first half of the target farmland block has advanced to the preset measuring point, by using the objective function that average value of the errors of the measured values that are corresponding to it is minimum, reversely solving and optimizing the soil infiltration parameters, and substituting optimized soil infiltration parameters again into the surface irrigation model, and adjusting an irrigation duration according to the prediction result.

Method for controlling surface irrigation based on surface water depth information

An apparatus, method, and medium for distinguishing a vocal sound. The apparatus includes: a framing unit dividing an input signal into frames, each frame having a predetermined length; a pitch extracting unit determining whether each frame is a voiced frame or an unvoiced frame and extracting a pitch contour from the voiced and unvoiced frames; a zero-cross rate calculator respectively calculating a zero-cross rate for each frame; a parameter calculator calculating parameters including a time length ratio of the voiced frame and the unvoiced frame determined by the pitch extracting unit, statistical information of the pitch contour, and spectral characteristics; and a classifier inputting the zero-cross rates and the parameters output from the parameter calculator and determining whether the input signal is a vocal sound.

Apparatus, method, and medium for distinguishing vocal sound from other sounds

A formant tracking apparatus and a formant tracking method are provided. The formant tracking apparatus includes: a framing unit dividing an input voice signal into a plurality of frames; a linear prediction analyzing unit obtaining linear prediction coefficients for each frame; a segmentation unit segmenting each of the linear prediction coefficients into a plurality of segments; a formant candidate determining unit obtaining formant candidates by using the linear prediction coefficients, and summing the formant candidates for each segment to determine formant candidates for each segment; a formant number determining unit determining a number of tracking formants for each segment among the formant candidates satisfying a predetermined condition; and a tracking unit searching the tracking formants as many as the number of the tracking formants determined in the formant number determining unit among the formant candidates belonging to each segment.

Formant tracking apparatus and formant tracking method

A pitch estimating method and apparatus in which mixture Gaussian distributions based on candidate pitches having high period estimating values are generated, a mixture Gaussian distribution having a high likelihood is selected and dynamic programming is executed so that the pitch of the speech signal can be accurately estimated. The pitch estimating method comprises computing a normalized autocorrelation function of a windowed signal obtained by multiplying a frame of a speech signal by a window signal and determining candidate pitches from a peak value of the normalized autocorrelation function of the windowed signal, interpolating a period of the determined candidate pitches and a period estimating value representing a length of the period, generating Gaussian distributions for the candidate pitches for each frame for which the interpolated period estimating value is greater than a first threshold value, mixing the Gaussian distributions which are located at a distance less than a second threshold value to generate mixture Gaussian distributions and selecting at least one of the mixture Gaussian distributions that a likelihood exceeding a third threshold value, and executing dynamic programming for the frames to estimate the pitch of each frame, based on the candidate pitches of each of the frames and the selected mixture Gaussian distributions.

Method and apparatus for estimating pitch of signal

A method and apparatus for classifying mood of music at high speed. The method includes: extracting a Modified Discrete Cosine Transformation-based timbre feature from a compressed domain of a music file; extracting a Modified Discrete Cosine Transformation-based tempo feature from the compressed domain of the music file; and classifying the mood of the music file based on the extracted timbre feature and the extracted tempo feature.

Method and apparatus for classifying mood of music at high speed

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Beijing, China

Yuan Shi