Abstract:
A method and apparatus to separate first and second mixture signals received from two sensors and transformed into the frequency domain in two or more source signals. The signal separation method includes: calculating a global signal absence probability for each frame and a local signal absence probability for each frequency band of a corresponding frame for at least one of the first and second mixture signals; estimating a spectrum vector for each frequency band in which a noise signal is eliminated using the global signal absence probability; determining a plurality of frequency bands including at least one of a noise signal and a source signal using the local signal absence probability, and generating a source label vector which consists of a plurality of frequency bands assigned to each source, using an attenuation parameter and a delay parameter generated for each of the determined frequency bands; and multiplying the spectrum vector estimated for each frequency band by the source label vector, and obtaining signals separated according to the source signals.
Abstract:
A button input apparatus with a display function, which generates a switch signal in response to a user's press, and a portable electronic device having the same. The button input apparatus includes: a plurality of lever buttons each having a transparent window in at least a portion thereof, and one fixed edge on one side of the transparent window, so that the buttons are elastically vertically flexible; a switch substrate, which is disposed below the plurality of lever buttons, including openings respectively corresponding to the transparent windows, and generating a switch signal according to a motion of any of the plurality of lever buttons via a plurality of switches disposed to respectively correspond to elastic parts of the lever buttons; and a display panel, which provides an image in an area corresponding to each of the transparent windows, at least a portion of the display panel being disposed below the plurality of lever buttons.
Abstract:
A portable terminal having display buttons for displaying images corresponding to specific functions through keys pressed by a user, and a method of inputting functions of the portable terminal using the display buttons. The portable terminal includes: a controller which receives signals corresponding to a user key pressed from the plurality of input buttons and outputs image data to be displayed on each of the plurality of input buttons using the received signals; and a plurality of buttons for inputting a key from a user and outputting a signal corresponding to the key pressed, and for receiving the image data from the controller and displaying the received image data. Accordingly, by using the display buttons for displaying variable images corresponding to specific functions as well as an essential function of inputting keys from a user when a specific function is input in the portable terminal such as a cell phone, a plurality of functions can be input with only a limited number of buttons, providing speed and convenience to the user for function input.
Abstract:
A method and an apparatus are provided for discriminating between a voice region and a non-voice region in an environment in which diverse types of noises and voices exist. The voice discrimination apparatus includes a domain transform unit for transforming an input sound signal frame into a frame in the frequency domain, a model training/update unit for setting a voice model and a plurality of noise models in the frequency domain and initializing or updating the models, a speech absence probability (SAP) computation unit for obtaining a SAP computation equation for each noise source by using the initialized or updated voice model and noise models and substituting the transformed frame into the equation to compute an SAP for each noise source, a noise source selection unit for selecting the noise source by comparing the SAPs computed for the respective noise sources, and a voice judgment unit for judging whether the input frame corresponds to the voice region in accordance with the SAP level of the selected noise source.
Abstract:
An apparatus, system, and method for controlling a virtual object. The virtual object is controlled by detecting a hand motion of a user and generating an event corresponding to the hand motion. Accordingly, the user may control the virtual object displayed on a 3-dimensional graphic user interface (3D GUI) more intuitively and efficiently.
Abstract:
An organic light emitting diode (OLED) display apparatus having an optical sensing function is provided. The OLED display apparatus may photograph an external object by sensing input light from the external object that passes through an imaging pattern included in a display panel.
Abstract:
A display apparatus that may enable sensing a multi-touch and a proximity object is provided. The display apparatus may display an image generated by the object on an organic light emitting diode (OLED) display panel, and may sense an invisible light that may be reflected by the object and may have entered through a hole.
Abstract:
An apparatus and method for controlling a 3-dimensional (3D) image using a virtual tool are provided. The apparatus may detect a user object that controls the 3D image, and determine a target virtual tool matching movement of the user object. In addition, the apparatus may display the determined target virtual tool along with the 3D image.
Abstract:
In an apparatus and method for controlling an interface, a user interface (UI) may be controlled using information on a hand motion and a gaze of a user without separate tools such as a mouse and a keyboard. That is, the UI control method provides more intuitive, immersive, and united control of the UI. Since a region of interest (ROI) sensing the hand motion of the user is calculated using a UI object that is controlled based on the hand motion within the ROI, the user may control the UI object in the same method and feel regardless of a distance from the user to a sensor. In addition, since positions and directions of view points are adjusted based on a position and direction of the gaze, a binocular 2D/3D image based on motion parallax may be provided.
Abstract:
A method, medium and apparatus browsing images is disclosed. The method browsing images includes sensing acceleration imparted to a portable digital device, and moving an image onto a display area in accordance with a tilt angle of the portable digital device if the sensed acceleration is greater than a first threshold value.