| Patent application number | Description | Published |
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| 20080235013 | METHOD AND APPARATUS FOR ESTIMATING NOISE BY USING HARMONICS OF VOICE SIGNAL - Disclosed is a method and an apparatus for estimating noise included in a sound signal during sound signal processing. The method includes estimating harmonics components in a frame of an input sound signal; using the estimated harmonics components, computing a Voice Presence Probability (VPP) on the frame of the input sound signal; determining a weight of an equation necessary to estimate a noise spectrum, depending on the computed VPP; and using the determined weight and the equation necessary to estimate a noise spectrum, estimating the noise spectrum, and updating the noise spectrum. | 09-25-2008 |
| 20080249774 | METHOD AND APPARATUS FOR SPEECH SPEAKER RECOGNITION - Disclosed is a method for speech speaker recognition of a speech speaker recognition apparatus, the method including detecting effective speech data from input speech; extracting an acoustic feature from the speech data; generating an acoustic feature transformation matrix from the speech data according to each of Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA), mixing each of the acoustic feature transformation matrixes to construct a hybrid acoustic feature transformation matrix, and multiplying the matrix representing the acoustic feature with the hybrid acoustic feature transformation matrix to generate a final feature vector; and generating a speaker model from the final feature vector, comparing a pre-stored universal speaker model with the generated speaker model to identify the speaker, and verifying the identified speaker. | 10-09-2008 |
| 20080268964 | TORQUE LIMITER - A torque limiter includes a driving bushing, a clutch spring wound around an outer circumference of the driving bushing, and a housing receiving a driving force via the clutch spring. The housing includes a first catch portion engaged with a first end portion of the clutch spring, and a second catch portion engaged with a second end portion of the clutch spring. The second catch portion is movable with respect to the first catch portion to change an angle between the first and second end portions of the clutch spring. | 10-30-2008 |
| 20080273766 | FACE RECOGNITION SYSTEM AND METHOD BASED ON ADAPTIVE LEARNING - A face recognition system based on adaptive learning includes a specific person detection and tracking unit for detecting and tracking a specific person from a moving image. A facial feature extraction unit extracts a plurality of facial feature vectors from the detected and tracked specific person. A face recognition unit searches for a given registration model by comparing the extracted facial feature vectors with facial feature vectors of the registration models previously stored in a user registration model database. A learning target selection unit selects a facial feature vector to be added to a record of the given registration model from among the extracted facial feature vectors. A registration model learning unit adds and updates the selected facial feature vector to the record of the given registration model. | 11-06-2008 |
| 20080279426 | SYSTEM AND METHOD FOR VERIFYING FACE OF USER USING LIGHT MASK - A system and method for verifying the face of a user using a light mask are provided. The system includes a facial feature extraction unit for extracting a facial feature vector from a facial image received from a camera. A non-user Gaussian Mixture Model (GMM) configuration unit generates a non-user GMM from a facial image stored in a non-user database (DB). A user GMM configuration unit generates a user GMM by applying light masks to a facial image stored in a user DB. A log-likelihood value calculation unit inputs the facial feature vector both to the non-user GMM and to the user GMM, thus calculating log-likelihood values. A user verification unit compares the calculated log-likelihood values with a predetermined threshold, thus verifying whether the received facial image is a facial image of the user. | 11-13-2008 |
| 20080298599 | SYSTEM AND METHOD FOR EVALUATING PERFORMANCE OF MICROPHONE FOR LONG-DISTANCE SPEECH RECOGNITION IN ROBOT - A system and method for evaluating performance of a microphone for long-distance speech recognition, which enables a robot to receive and respond to voices. A robot, which includes a network robot, must correctly recognize speech in order to recognize the user and to perceive its surroundings, objective evaluation criteria are required for choosing a microphone to be used in the robot. The methods include measuring a degree of attenuation of the voice, measuring a degree of distortion of the voice, and simultaneously measuring the degree of attenuation of the voice and the degree of distortion of the voice. A standard for the choice of a microphone, which can be digitalized, for a speech recognition function of a robot, permits choice of a microphone which has good sensitivity and can pick up voices without distortion when used at a large distance. | 12-04-2008 |
| 20080312918 | VOICE PERFORMANCE EVALUATION SYSTEM AND METHOD FOR LONG-DISTANCE VOICE RECOGNITION - A system and a method are provided for evaluating a voice performance in order to recognize a long-distance voice. The system implements a voice performance evaluation function for long-distance voice input in a robot. Particularly, in robots including a network robot, it is required to normally perform voice recognition so that a speaking subject and a surrounding situation can be recognized by a robot. Accordingly, in order to obtain the most optimal voice quality, it is important to find a noise removal algorithm through an optimal hardware configuration and an optimal combination of the optimal hardware configuration and software. Therefore, a method for finding a noise removal algorithm appropriate for each of cases, including one case where a distance from a speaking subject is fixed and another case where a distance from a speaking subject changes. As a result, the most optimal voice quality can be obtained regardless of a noise environment even when the speaking subject is a long distance away from the robot. | 12-18-2008 |
| 20090043422 | PHOTOGRAPHING APPARATUS AND METHOD IN A ROBOT - A method and apparatus for taking a picture are provided, in which a mobile apparatus detects a current position of a mobile apparatus, moves from the current position to a predetermined position to take a picture, information about an ambient image around the mobile apparatus through the image sensor, after the movement, analyzes characteristics of the received image information, compares the analyzed characteristics with a predetermined picture-taking condition, controls the mobile apparatus for the characteristics of the image information to satisfy the predetermined picture-taking condition, if the characteristics of the image information do not satisfy the predetermined picture-taking condition, and takes a picture, if the characteristics of the image information satisfy the predetermined picture-taking condition. | 02-12-2009 |
| 20090051787 | APPARATUS AND METHOD FOR PHOTOGRAPHING IMAGE USING DIGITAL CAMERA CAPABLE OF PROVIDING PREVIEW IMAGES - Disclosed is an apparatus for photographing an image using a digital camera capable of providing a preview image, including: an image sensor for capturing an image of a subject; a first image signal processor for processing at least one captured image as a sequent image in order to display the captured image as a preview image on a display window and detecting a face area from the captured image; a buffer for storing the image including at least one detected face area; a capture button for capturing a still image during outputting the sequent image as the preview image on the display window; a second image signal processor for processing the captured still image using the capture button; a controller for controlling to store the captured still image and information related on the face area detected from the first image signal processor prior to the input of the capture button; and a memory for storing the processed still image together with the information related on the detected face area. | 02-26-2009 |
| 20090110225 | METHOD AND APPARATUS FOR SOUND SOURCE LOCALIZATION USING MICROPHONES - A method and apparatus for sound source localization using microphones are disclosed. The method includes: receiving signals coming from a sound source through microphones covering all directions; distinguishing the received signals into those signals directly input to the microphones from the sound source (direct signals) and those signals indirectly input to the microphones (indirect signals); identifying a candidate region at which the sound source is present using locations of the microphones receiving direct signals; selecting a point in the candidate region as a candidate location; drawing one or more virtual tangent lines, contacting with the circumference of the apparatus, from the candidate location; placing locations of the microphones receiving indirect signals on the virtual tangent lines; and localizing the sound source on the basis of signals passing through the microphones receiving direct signals and through the virtual locations of the microphones receiving indirect signals. | 04-30-2009 |
| 20090181484 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - Provided are a semiconductor light emitting device having a nano pattern and a method of manufacturing the semiconductor light emitting device. The semiconductor light emitting device includes: a semiconductor layer comprising a plurality of nano patterns, wherein the plurality of nano patterns are formed inside the semiconductor layer; and an active layer formed on the semiconductor layer. The optical output efficiency is increased and inner defects of the semiconductor light emitting device are reduced. | 07-16-2009 |
| 20090205483 | MUSIC RECOGNITION METHOD BASED ON HARMONIC FEATURES AND MOBILE ROBOT MOTION GENERATION METHOD USING THE SAME - A music recognition method based on harmonic features and a motion generation method for a mobile robot. The music recognition method preferably includes: extracting harmonic peaks from an audio signal of an input song; computing a harmonic feature related to the average of distances between extracted harmonic peaks; and recognizing the input song by harmonic component analysis based on the computed harmonic feature. The motion generation method for a mobile robot includes: extracting a musical feature from an audio signal of an input song; generating an initial musical score after identifying the input song on the basis of the extracted musical feature; generating a final musical score by synchronizing the initial musical score and musical feature together; and generating robot motions or a motion script file by matching a motion pattern of the mobile robot with the final musical score. | 08-20-2009 |
| 20090210223 | APPARATUS AND METHOD FOR SOUND RECOGNITION IN PORTABLE DEVICE - Provided are an apparatus and a method capable of recognizing a sound through a reduced burden of computations and a noise-tolerant technique. The sound recognition apparatus in a portable device includes a memory unit that stores at least one base sound and a sound input unit that receives a sound input. The sound recognition apparatus also includes a control unit that receives the sound input from the sound input unit, extracts peak values of the sound input, calculates statistical data by using the peak values, and determines whether the sound input is equal to a base sound by using the statistical data. | 08-20-2009 |
| 20090279714 | APPARATUS AND METHOD FOR LOCALIZING SOUND SOURCE IN ROBOT - An apparatus and method for localizing a sound source in a robot are provided. The apparatus includes a microphone unit implemented by one or more microphones, which picks up a sound from a three-dimensional space. The apparatus also includes a sound source localizer for determining a position of the sound source in accordance with Time-Difference of Arrivals (TDOAs) and a highest power of the sound picked up by the microphone unit. Thus, the robot can rapidly and accurately localize the sound source in the three-dimensional space with minimum dead space, using a minimum number of microphones. | 11-12-2009 |
| 20090303877 | COMMUNICATION METHOD BASED ON TRANSMISSION CONTROL PROTOCOL AND MOBILE COMMUNICATION TERMINAL TO PERFORM THE METHOD - A telecommunication method based on transmission control protocol (TCP) includes setting an initial value of a congestion window according to a communication situation of a communication network to more efficiently use uncongested bandwidth of the communication network. An IP network access unit in a telecommunication network determines a congestion window value based on a predetermined reference, and transmits the determined congestion window value to the mobile telecommunication terminal. The mobile communication terminal receives the congestion window value, and performs a TCP access for data telecommunication using the initial congestion window value in a slow start algorithm of TCP in a mobile telecommunication environment. The bandwidth of telecommunication network may be more efficiently used by setting an initial value of the congestion window according to the telecommunication situation or available bandwidth. | 12-10-2009 |
| 20090304200 | Adaptive mode control apparatus and method for adaptive beamforming based on detection of user direction sound - An adaptive mode control apparatus and method for adaptive beamforming based on detection of a user direction sound are provided. The adaptive mode control apparatus includes a signal intensity detector that searches for signal intensity of each designated direction to detect signal intensity having a maximum value when a voice signal of each direction is input through at least one microphone; and an adaptive mode controller that compares the signal intensity having the maximum value detected through the signal intensity detector with a threshold value and determines whether to perform an adaptive mode of a Generalized Sidelobe Canceller (GSC) according to the comparison results. Therefore, a lack of control of adaptation of an adaptive filter of the conventional art is solved. That is, as one condition for guaranteeing performance of adaptive beamforming, adaptation of an adaptive filter is not performed when noise of a sound with a high autocorrelation is cancelled. | 12-10-2009 |
| 20090316999 | METHOD AND APPARATUS FOR RECOGNIZING CHARACTERS - Disclosed is a method and an apparatus for recognizing characters using an image. A camera is activated according to a character recognition request and a preview mode is set for displaying an image photographed through the camera in real time. An auto focus of the camera is controlled and an image having a predetermined level of clarity is obtained for character recognition from the images obtained in the preview mode. The image for character recognition is character-recognition-processed so as to extract recognition result data. A final recognition character row is drawn that excludes non-character data from the recognition result data. A first word is combined including at least one character of the final recognition character row and a predetermined maximum number of characters. A dictionary database that stores dictionary information on various languages using the first word is searched, so as to provide the user with the corresponding word. | 12-24-2009 |
| 20100008582 | METHOD FOR RECOGNIZING AND TRANSLATING CHARACTERS IN CAMERA-BASED IMAGE - A method for recognizing an image photographed by a camera and translating characters in connection with an electronic dictionary is provided. The method includes directly selecting an area to be recognized from the photographed character image and performing character recognition, translating and recognizing characters of a user's selected word in connection with dictionary data, and displaying translation result information of user's selected character or word in connection with dictionary data on a screen device. The recognition includes providing information on location of the selected character image area and location of the recognized character string words to the user, and then translating a character string or word in a location area selected by the user. The electronic dictionary-connected search and translation is for searching the character or word selected in connection with the electronic dictionary database, and providing translation result to the user. | 01-14-2010 |
| 20100017206 | Sound source separation method and system using beamforming technique - A system and method for sound source separation. The system and method use a beamforming technique. The sound source separation system includes a windowing processor; a DFT transformer; a transfer function estimator; and a noise estimator. The system also includes a voice signal extractor that cancels individual voice signals, except an individual voice signal that is desired to be extracted among individual voice signals, from the integrated voice signals. The system further includes a voice signal detector that cancels a noise part provided through the noise estimator from a transfer function of an individual voice signal which is desired to be detected and extracts a noise-canceled individual voice signal. Even when two or more sound sources are simultaneously input, the sound sources can be separated from each other and separately stored and managed, or an initial sound source can be stored and managed. | 01-21-2010 |
| 20100082341 | Speaker recognition device and method using voice signal analysis - A device includes a speaker recognition device operable to perform a method that identifies a speaker using voice signal analysis. The speaker recognition device and method identifies the speaker by analyzing a voice signal and comparing the signal with voice signal characteristics of speakers, which are statistically classified. The device and method is applicable to a case where a voice signal is a voiced sound or a voiceless sound or to a case where no information on a voice signal is present. Since voice/non-voice determination is performed, the speaker can be reliably identified from the voice signal. The device and method is adaptable to applications that require a real-time process due to a small amount of data to be calculated and fast processing. Furthermore, the device and method can be variously applied to portable devices due to low power consumption. | 04-01-2010 |
| 20100141758 | APPARATUS AND METHOD FOR AUTOMATICALLY ADJUSTING SIZE OF CHARACTERS USING CAMERA - A method is provided for automatically adjusting a size of characters using a camera. The method includes receiving an image with characters; adjusting a focus of the image with characters and detecting a region and a size of characters in the image; determining whether the size of the characters in the image falls within a preset range; recognizing the characters in the image and displaying the recognition results, if the size of characters falls within the preset range; and automatically adjusting a zoom ratio of the image and recognizing the characters in the resized image, if the size of the characters does not fall within the preset range. | 06-10-2010 |
| 20100141788 | APPARATUS AND METHOD FOR RECOGNIZING CHARACTERS USING A CAMERA - An apparatus and method for recognizing characters of an image captured using a camera in a mobile terminal are provided, wherein an image of a signboard is captured, a text area is extracted from the captured image of the signboard, characters are recognized from the extracted text area, similar characters up to a predetermined priority level are generated for each recognized character of the extracted text area, location information of an area within a predetermined range from a current position of a user is acquired, store names are extracted from the location information, text is generated by combining the similar characters according to weights, the text are compared with the extracted store names, and a comparison result is output. | 06-10-2010 |
| 20100208999 | METHOD OF COMPENSATING FOR DISTORTION IN TEXT RECOGNITION - A method of compensating for distortion in text recognition is provided, which includes extracting a text region from an image; estimating the form of an upper end of the extracted text region; estimating the form of a lower end of the extracted text region; estimating the form of left and right sides of the extracted text region; estimating a diagram constituted in the form of the estimated upper end, lower end, left and right sides, and including a minimum area of the text region; and transforming the text region constituting the estimated diagram into a rectangular diagram using an affine transform. | 08-19-2010 |
| 20100239174 | METHOD FOR CREATING PANORAMA - A method is provided for creating a panorama. The method includes photographing a plurality of images having same backgrounds and different forms of a subject, determining a size and a position of a reference region for creating a panorama using the images, extracting a target region within the reference region from each of the images, detecting same portions in adjacent target regions, and creating a panorama by combining the adjacent target regions on the basis of the same portions. | 09-23-2010 |
| 20100279448 | Method of manufacturing vertical light emitting device - Provided is a method of manufacturing a vertical light emitting device. The method of manufacturing the vertical light emitting device may include forming an emissive layer including a n-type semiconductor layer, an active layer, and a p-type semiconductor layer on a substrate, forming a first trench dividing the emissive layer into light emitting device units in which the emissive layer remains on the lower part of the first trench to a desired, or alternatively, a predetermined thickness, forming a passivation layer on the emissive layer, forming a p-type electrode on the p-type semiconductor layer of the emissive layer, forming a metal supporting layer on the passivation layer and the p-type electrode, removing the substrate, removing a remaining portion of the emissive layer when the surface of the emissive layer is exposed by removing the substrate, forming a n-type electrode on the n-type semiconductor layer of the emissive layer, and cutting the metal supporting layer to divide the emissive layer into the light emitting device units. | 11-04-2010 |
| 20110013807 | APPARATUS AND METHOD FOR RECOGNIZING SUBJECT MOTION USING A CAMERA - A method for recognizing a subject motion using a camera is provided, in which each of the previous and current image frames received from the camera is split into multiple image blocks, motion blocks are detected among the image blocks based on a difference between previous and current pixel values for each of the image frames, a motion center is detected based on positions of the motion blocks for each image frame, and the subject motion appearing in the previous and current image frames is recognized based on the motion centers of the previous and current image frames. | 01-20-2011 |
| 20110121509 | MEDIUM SUPPLY UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - A medium supply unit of an image forming apparatus, the medium supply unit may include: a main body housing; a tray connected to the main body housing and loading a printing-target medium therein; an activating shaft connected to the main body housing and being rotated in a predetermined direction by an activating force of an activating source; an intermediate member supported by one end of the activating shaft to deliver a rotating force of the activating shaft; a first elastic member having one end connected to the intermediate member and the other end supported by the activating shaft; and elastically biasing the intermediate member in a direction facing the printing-target medium according to a rotation of the activating shaft; and a roller unit having a roller unit housing that is attachable to the intermediate member and at least one roller that is supported by the roller unit housing and picks up and supplies printing-target media loaded in the tray; and configured to deliver to the roller(s) an elastic force of the first elastic member and a rotating force of the activating shaft when the activating shaft is rotated. | 05-26-2011 |
