Abstract: According to the present invention, a method of performing coordinated multipoint transmission and reception in an overlaid cellular system in which a first base station and a second base station overlay each other, the method comprising performing a handover using a coordinated multi-point transmission and reception scheme based on Channel State Indicator-Reference Signal (CSI-RS) information of user equipment by the first and second base stations.

Abstract: A speech recognition apparatus generates a feature vector series corresponding to a speech signal, and recognizes a phoneme series corresponding to the feature vector series using sounds corresponding to phonemes and a phoneme language model. In addition, the speech recognition apparatus recognizes vocabulary that corresponds to the recognized phoneme series. At this time, the phoneme language model represents connection relationships between the phonemes, and is modeled according to time-variant characteristics of the phonemes.

Abstract: A stub printed antenna (SPDA) and a method of designing the same are provided. The SPDA include: a substrate; dipole arms disposed at both surfaces of the substrate for transmitting/receiving a signal; a parallel metal strip line disposed at both surfaces of the substrate, and each having one end connected to each of the dipole arms; a stub disposed at both surfaces of the substrate, and connected to the other end of the parallel metal strip line; a coaxial probe connected to the junction of the parallel metal strip line and the stub for feeding signals; a hole for inserting an inner conductor of the coaxial probe; and a contact for connecting to an outer conductor of the coaxial probe.

Abstract: A recording layer of a magneto-optical storage medium having a sublayer in accordance with the present invention comprises a recording layer on which information is recorded and stored; and a sublayer formed above or below the recording layer and made up of an alloy containing a transition metal, wherein a magnetic anisotropy energy of the sublayer is exchange-coupled to the recording layer, thereby enhancing a coercive force of the recording layer. The sublayer may be formed in a single-layered structure having one layer, or in a multi-layered structure having a plurality of layers. The sublayer is preferably made up of an alloy containing a transition metal used for the recording layer. According to the present invention, the coercive force of the recording layer can be increased by an exchange coupling effect between the recording layer and its adjacent sublayer, and thus, the stability of the magnetic domain in the recording layer can be improved.