Lg Electronics Inc.

Chungbuk National University Industry-Academic Cooperation Foundation

Yonsei University

Chungbuk National University Industry Academic

Lagyoung Kim

Hyejeong Jeon

Gyuhyeok Jeong

Ingyu Kang

Byungsuk Lee

Younghan Lee

Daehwan Kim

Juwan Lee

Daegeun Seo

Taedong Shin

Jihyun Song

Kibong Hong

Insung Lee

Changheon Lee

Sanghyeon Moon

Zhigang Piao

Jongha Lim

Seunghoon Lee

Yunsik Park

Minki Lee

Honggoo Kang

A touch sensing apparatus includes a first plate configured to receive a touch input, a second plate spaced apart from the first plate, a piezoelectric element disposed between the first and second plates, the piezoelectric element being configured to generate electrical signals corresponding to the touch input received on the first plate, an ultrasonic output unit configured to output ultrasonic signals based on the electrical signals generated from the piezoelectric element, a plurality of microphones configured to receive the ultrasonic signals, and a processor configured to determine a position of the touch input on the first plate based on the ultrasonic signals received by the plurality of microphones.

Touch sensing apparatus based on ultrasonic waves, cooking apparatus and home appliance including the same

A terminal includes a microphone, a display, an audio output module, a communication unit to exchange data with a server or a home appliance, and a controller to control display of a screen including information related to the home appliance and to control output of information corresponding to user voice based on the information related to the home appliance on the screen via the display or the audio output module when the user voice is received via the microphone. Therefore, it is possible to improve user convenience upon utilizing the home appliance.

Terminal and home appliance system including the same

Provided are an acoustic sensor and a home appliance system comprising the same. The acoustic sensor comprises a communication unit, a microphone to collect an acoustic signal, a memory to store a failure acoustic signal of a home appliance, and a processor, wherein in response to the acoustic signal, collected by the microphone, corresponding to the failure acoustic signal of the home appliance, the processor transmits the collected acoustic signal, or data corresponding to the collected acoustic signal, to an external server or a terminal. Accordingly, failure of the home appliance may be easily diagnosed.

Acoustic sensor and home appliance system comprising the same

Provided is a smart home appliance. The smart home appliance includes: a voice input unit collecting a voice; a voice recognition unit recognizing a text corresponding to the voice collected through the voice input unit; a capturing unit collecting an image for detecting a user's visage or face; a memory unit mapping the text recognized by the voice recognition unit and a setting function and storing the mapped information; and a control unit determining whether to perform a voice recognition service on the basis of at least one information of image information collected by the capturing unit and voice information collected by the voice input unit.

Smart home appliances, operating method of thereof, and voice recognition system using the smart home appliances

Disclosed are a home appliance and a mobile terminal. The home appliance includes a drive unit, an acoustic output module configured to output sound, a microphone configured to receive sound from an external source, a memory configured to store information related to the home appliance when the home appliance is being operated, an acoustic communication unit configured to output sound containing the information related to the home appliance to the acoustic output module or to extract prescribed information from the sound received via the microphone based on an acoustic communication mode, and a controller configured to control the drive unit according to the information extracted by the acoustic communication unit. Transmission of information between the home appliance and the mobile terminal is accomplished via acoustic communication.

Home appliance and mobile terminal

Disclosed herein are a robot cleaner and a robot cleaning system having the same. The robot cleaner includes a main body, a traveling unit configured to move the main body, a cleaning unit configured to execute cleaning, a camera configured to capture an image including foreign substances, a communication unit configured to exchange data with a mobile terminal or a server, and a controller configured to control transmission of the image including the foreign substances and image related information to the mobile terminal or the server and to execute cleaning of an area around the foreign substances based on cleaning execution information regarding the foreign substances or to execute no cleaning of the area around the foreign substances based on cleaning avoidance information regarding the foreign substances, transmitted from the mobile terminal or the server. Thereby, the robot cleaner may selectively clean foreign substances.

Robot cleaner, robot cleaning system having the same, and method for operating a robot cleaner

The present invention relates to a method for processing an audio signal, comprising: a step of performing a frequency conversion process on an audio signal to obtain a plurality of frequency transform coefficients; a step of selecting either a general mode or a non-general mode, on the basis of a pulse ratio, for the frequency transform coefficients having a high frequency band from among the plurality of frequency transform coefficients; and a step of performing, if the non-general mode is selected, the following steps: extracting a predetermined number of pulses from the frequency transform coefficients having the high frequency band, and generating pulse information; generating an original noise signal from the frequency transform coefficients having the high frequency band, excluding the pulses; generating a reference noise signal using the frequency transform coefficient having a low frequency band from among the plurality of frequency transform coefficients; and generating noise position information and noise energy information using the original noise signal and the reference noise signal.

Method and apparatus for processing an audio signal

The present invention relates to a method for encoding a voice signal, a method for decoding a voice signal, and an apparatus using the same. The method for encoding the voice signal according to the present invention, includes the steps of: 

Method for encoding voice signal, method for decoding voice signal, and apparatus using same

The present invention relates to a method and apparatus for processing a voice signal, and the voice signal encoding method according to the present invention comprises the steps of: generating transform coefficients of sine wave components forming an input voice signal by transforming the sine wave components; determining transform coefficients to be encoded from the generated transform coefficients; and transmitting indication information indicating the determined transform coefficients, wherein the indication information may include position information, magnitude information, and sign information of the transform coefficients.

Voice signal encoding method, voice signal decoding method, and apparatus using same

The present invention relates to a method and device for quantizing voice signals in a band-selective manner. A voice decoding method may include inversely quantizing voice parameter information produced from a selectively quantized voice band and performing inverse transform on the basis of the inversely quantized voice parameter information. Thus, according to the present invention, coding/decoding efficiency in voice coding/decoding may be increased by selectively coding/decoding important information.

Method and device for quantizing voice signals in a band-selective manner

The present invention relates to a method of managing a jitter buffer and a jitter buffer using same. The method of managing a jitter buffer includes the steps of: receiving audio information frames; and adjusting a jitter buffer on the basis of the received audio information frames, wherein the adjusting step of the jitter buffer includes compensation of an audio signal, and the compensation of the audio signal can be performed for each sub frame of the audio information frames.

Method of managing a jitter buffer, and jitter buffer using same

The present invention provides a method for processing audio signals, and the method comprises the steps of: receiving input audio signals corresponding to a plurality of spectral coefficients; obtaining location information that indicates a location of a particular spectral coefficient among said spectral coefficients, on the basis of energy of said input signals: generating a shape vector by using said location information and said spectral coefficients; determining a codebook index by searching for a codebook corresponding to said shape vector; and transmitting said codebook index and said location information, wherein said shape vector is generated by using a part which is selected from said spectral coefficients, and said selected part is selected on the basis of said location information.

Method for processing audio signals, involves determining codebook index by searching for codebook corresponding to shape vector generated by using location information and spectral coefficients

The present invention relates to a method for processing an audio signal, comprising: determining bandwidth information indicating to which of a plurality of bands the current frame corresponds; determining information on the order corresponding to the present frame on the basis of the bandwidth information; performing a linear predictive analysis of the present frame to generate a first set linear predictive transform coefficient of a first order; performing a vector quantization on the first set linear predictive coefficient to generate a first index; performing a linear predictive analysis of the current frame to generate a second set linear predictive transform coefficient of a second order in accordance with the information on the order; and performing a vector quantization on a second set difference by using the first set index and the second set linear predictive transform coefficient, when the second set linear predictive coefficient is generated.

According to the present invention, a linear prediction filter coefficient of a current frame is acquired from an input signal using linear prediction, a quantized spectrum candidate vector of the current frame, corresponding to the linear prediction filter coefficient of the current frame, is acquired on the basis of first best information, and the quantized spectrum candidate vector of the current frame and the quantized spectrum vector of the previous frame are interpolated. Accordingly, in contrast to conventional phased optimization techniques, optimum parameters which minimize quantization errors, can be obtained.

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Seoul, South Korea

Lagyoung Kim