Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same. The positive electrode active material according to the present invention reduces the specific surface area and grain boundary of a secondary particle in which a side reaction with an electrolyte solution occurs to improve the high-temperature stability of the positive electrode active material and reduce gas generation caused by the positive electrode active material.

Abstract: The present invention relates to a positive electrode active material, in which primary particles included in a secondary particle exhibit an aspect ratio gradient which gradually increases from the center of the secondary particle to the surface thereof, and a lithium secondary battery which uses a positive electrode containing the positive electrode active material.

Abstract: A data receiving apparatus and control method are provided. The apparatus includes a determining part determining whether a clock signal and a data signal are respectively in a high state and/or in a low state based on a predetermined value of a standard level, when the clock signal and the data signal are received from an external apparatus; and a controller determining a data communicating state corresponding to the high state and/or the low state of the clock signal and the data signal determined in the determining part.

Abstract: A data receiving apparatus and control method are provided. The apparatus includes a determining part determining whether a clock signal and a data signal are respectively in a high state and/or in a low state based on a predetermined value of a standard level, when the clock signal and the data signal are received from an external apparatus; and a controller determining a data communicating state corresponding to the high state and/or the low state of the clock signal and the data signal determined in the determining part.

Abstract: A memory management apparatus and method for protecting an image tearing in the video system. The memory management apparatus includes a scaler that converts the format of input image data into a suitable format to fit the resolution of a display, a first memory, in which the format-converted image data is written, or from which the format-converted image data is read, and a second memory which is substituted for the first memory, so that addresses for reading or writing do not overlap addresses for writing or reading, respectively, due to a difference between a data reading rate and a data writing rate.

Abstract: A memory management apparatus and method for protecting an image tearing in the video system. The memory management apparatus includes a scaler that converts the format of input image data into a suitable format to fit the resolution of a display, a first memory, in which the format-converted image data is written, or from which the format-converted image data is read, and a second memory which is substituted for the first memory, so that addresses for reading or writing do not overlap addresses for writing or reading, respectively, due to a difference between a data reading rate and a data writing rate.