Abstract: An apparatus and method for simplifying 3-Dimensional (3D) mesh data are disclosed. The method includes measuring discrete curvature at each point of received 3D mesh data, calculating an error based on distance-curvature error metrics including the discrete curvature, first sorting a low curvature one of the calculated error values in a heap in ascending order, selecting a minimum error among the calculated errors, determining if the minimum error is less than a threshold, contracting an edge if the selected minimum error is greater than the threshold, and recalculating an error of a surface neighboring to a surface on which the contracted edge belongs and re-sorting the calculated error values.

Abstract: An image display controlling apparatus and method, which can automatically divide an image signal according to the size of a screen in a mobile terminal. The image display controlling method includes generating frames having inner and outer edges based on an image signal; measuring a ratio of the size of each generated frame to the size of a display area; adjusting a number of frames to be displayed on the display area according to the measured ratio; and displaying a frame image corresponding to the adjusted number of frames on the display area.

Abstract: An antistatic thermoplastic resin composition includes a thermoplastic resin, an anionic antistatic agent, and a conductive metal oxide. The antistatic thermoplastic resin composition has enough antistatic properties to form various shapes of product, and it is particularly applicable for the production of housings of electro-electronic products or delivery trays for manufacturing an electro-electronic product.

Abstract: A method and apparatus of dot counting. The apparatus includes a nozzle portion having a length corresponding to a width of a printing medium, a dot counting unit to group head nozzles by position and to count a discharged dot count per line for each group, a control unit to determine whether the group has been used to print using the discharged dot count per line, a counter to count a number of times that the group is used to print based on the determination result, and a memory to store a sum of the counted numbers of times, in which the control unit controls the counter to count the number of times that the group is used to print with respect to each line of image data when the image data is created by a head chip, and a sum of the counted number of times is stored in the memory.

Abstract: A head of an inkjet printer is formed by bonding of a heater substrate and a nozzle plate. In order to bond the heater substrate where a heater thin film and a protecting film are vapor-deposited, and the nozzle plate where a nozzle is formed, an intermediate layer is formed by forming a thin film of glass on the heater substrate by vapor-depositing, and the nozzle plate is installed on the heater substrate. SiO2 is formed at an interface between the nozzle plate and the heater thin film due to heating and application of an electric field, and thus the nozzle plate and the heater substrate are bonded with an electrostatic force of SiO2. The nozzle plate and the heater substrate are bonded by using the intermediate layer made of the thin film of glass instead of a general polymer as the bonding layer, thereby preventing swelling of the polymer and isolation of layers of the head occurring due to ink penetration into interfaces of the layers.

Abstract: A human detection method and apparatus are provided. In the method, a person is detected from an image provided by a digital video camera. The method includes (a) initializing parameters used for a user detection; (b) determining a current mode; (c) when it is determined that the current mode is the face detection mode, performing a face detection on each of a plurality of image frames, and when a face is not detected even after a predetermined number of face detection trials, selecting a motion detection mode and going back to step (b); and (d) when it is determined that the current mode is the motion detection mode, performing a motion detection on a predetermined number of image frames at a time, and when at least a predetermined number of motion detections are performed successfully within a predetermined period of time, going back to step (a).

Abstract: An ink-jet image forming apparatus includes an ink-jet head having a nozzle unit including a first nozzle array having a plurality of nozzles of different sizes and at least one second nozzle array disposed parallel to the first nozzle array and having a plurality of nozzles of different sizes. A method of compensating for the defective nozzle includes: detecting a defective nozzle of the first nozzle array; and compensating for missing dots of the defective nozzle using the second nozzle array.

Abstract: A digital processing device capable of receiving an additional service is disclosed. In one aspect, a digital processing device includes i) an input unit, inputting a signal, ii) a subscriber identity unit, storing an identity code of a communication operator and generating a communication network access request message, iii) an additional service identity unit, storing an identity code of an additional service operator and generating an additional service request message and v) a control unit, generating a control signal allowing one of the subscriber identity unit and the additional service identity unit to be selectively driven. In accordance with at least one inventive embodiment, a user of the digital processing device can receive an additional service without his or her subscription to a specific communication operator and use various additional services in addition to the additional services provided by the subscribed communication operator.

Abstract: A thermal inkjet printhead that includes a substrate, a chamber layer stacked on the substrate, an ink chamber formed in the chamber layer, a heater to heat ink filled in the ink chamber to generate bubbles, and a nozzle layer stacked on the chamber layer, and including a nozzle formed in the nozzle layer, wherein a ratio of the volume of ink ejected through the nozzle with respect to the sum of the volumes of the ink chamber and the nozzle is in the range of approximately 40 to 60%.

Abstract: A DLL circuit can enable a semiconductor integrated circuit to perform a stable data processing operation. The DLL circuit includes a phase splitter that controls the phase of a delay clock, thereby generating a rising clock and a falling clock, an amplifying unit that performs differential amplification on the rising clock and the falling clock in response to first and second duty control signals, thereby generating an amplified rising clock and an amplified falling clock, and a duty cycle control unit that detects the duty rates of the amplified rising clock and the amplified falling clock, thereby generating the first and second duty control signals.

Abstract: A system and method for detecting a face using a pattern classifier learning face images and near face images are provided.

Abstract: A refresh signal generator generates an internal refresh signal to conduct a refresh with an interval controlled based on PVT fluctuations. The refresh signal generator includes a temperature sensing unit for sensing an internal temperature and activating a corresponding signal of a plurality of temperature sensing signals in response to a temperature sense driving signal, a power supply selecting unit for driving a driving voltage supply terminal to one of different voltage levels according to the plurality of temperature sensing signals, and an internal refresh signal generating unit for receiving a driving voltage from the power supply selecting unit and producing internal refresh signals at a constant interval.

Abstract: A human detection method and apparatus are provided. In the method, a person is detected from an image provided by a digital video camera. The method includes (a) initializing parameters used for a user detection; (b) determining a current mode; (c) when it is determined that the current mode is the face detection mode, performing a face detection on each of a plurality of image frames, and when a face is not detected even after a predetermined number of face detection trials, selecting a motion detection mode and going back to step (b); and (d) when it is determined that the current mode is the motion detection mode, performing a motion detection on a predetermined number of image frames at a time, and when at least a predetermined number of motion detections are performed successfully within a predetermined period of time, going back to step (a).

Abstract: An inkjet printer includes an ink cartridge including an ink container storing ink and fixed to a body of a printer, a printhead assembly including a plurality of nozzle plates, each including a plurality of nozzles ejecting ink supplied from the ink container, disposed on the bottom of the ink cartridge, and extending in a direction perpendicular to a paper moving direction, a platen disposed a predetermined distance below the printhead assembly, the platen supporting a sheet of paper moving in the paper moving direction, and having a plurality of slits extending in a direction perpendicular to the paper moving direction such that they correspond to the nozzle plates, and a wiping apparatus within the platen, the wiping apparatus protruding through the slits, moving in the direction perpendicular to the paper moving direction, and wiping the nozzle plates.

Abstract: A semiconductor device having a modified recess channel gate includes active regions defined by a device isolation layer and arranged at regular intervals on a semiconductor substrate, each active region extending in a major axis and a minor axis direction, a trench formed in each active region, the trench including a stepped bottom surface in the minor axis direction of the active region, and a recess gate formed in the trench.

Abstract: A method and apparatus for extracting feature vectors for face recognition and retrieval are provided. An entire Fourier feature vector is generated for an entire face area of a normalized face image using first and second normalized vectors, and a central Fourier feature vector is generated for a central face area of the normalized face image using third and fourth normalized vectors. An entire intensity feature vector is generated for the entire face area, and a local intensity feature vector is generated for a predetermined number of face component-wise areas. An entire composite feature vector is generated by coupling the first and second normalized vectors and the entire intensity feature, and a central composite feature vector is generated by coupling the third and fourth normalized vectors and the local intensity feature vectors.

Abstract: An ink-jet printhead and a manufacturing method thereof include a substrate on which a space portion is formed, a passage plate installed on the substrate in which an ink chamber is formed to store ink, a nozzle plate installed at a top surface of the passage plate in which a nozzle is formed to eject the ink, and a vibration plate disposed between the substrate and the passage plate to generate a pressure for ejecting the ink by changing a volume of the ink chamber.

Abstract: A face detection and tracking system for detecting and tracking a plurality of faces in real time from an input image comprises: a background removing unit which extracts an area having a motion by removing a background image from the input image; a candidate area extracting unit which extracts a candidate area in which a face can be located in the area having a motion by using a skin color probability map generated from a face skin color model and a global probability map a face area determination unit which extracts (ICA) features from a candidate area and determines whether the candidate area is a face area by using a trained SVM classifier; and a face area tracking unit which tracks the face area according to a directional kernel indicating a probability that a face is located in a next frame based on the skin color probability map.

Abstract: An illumination-invariant object tracking method and an image editing system using the same are provided. The illumination-invariant object tracking method involves: designating an initial position of an object of interest to be tracked in an image; constructing a probability map for object tracking in consideration of a color ratio of adjacent pixels in the image; and performing Kalman filtering based on the initial position of the object and the probability map. The image editing system based on the illumination-invariant object tracking method includes: a data input unit which receives an image to be edited; an object tracking unit which tracks a target object in consideration of a color ratio of adjacent pixels in the image; an image editing unit which edits and outputs an edited image in a predetermined region of the image, in response to information on the position, size, and boundary of the tracked target object.

Abstract: An ink-jet printhead and a manufacturing method thereof include a substrate on which a space portion is formed, a passage plate installed on the substrate in which an ink chamber is formed to store ink, a nozzle plate installed at a top surface of the passage plate in which a nozzle is formed to eject the ink, and a vibration plate disposed between the substrate and the passage plate to generate a pressure for ejecting the ink by changing a volume of the ink chamber.