Abstract: The present invention relates to a transmission device and method using space-frequency transmission diversity in a communications system. The transmission device and method using space-frequency transmission diversity according to the present invention is characterized in that data or signals are grouped into 2 or more groups which are then transmitted through different transmission antennae by using different sub-carriers.

Abstract: The present invention relates to a pilot tone generating method and apparatus of an orthogonal frequency division multiple access system and method, and a channel estimation method and apparatus using the same. The channel estimation apparatus includes a pilot tone extracting unit for extracting a pilot tone, which is inserted within a frame with data tone, masked with an orthogonal code; a pilot tone unmasking unit for unmasking of the pilot tone extracted from the pilot tone extracting unit by using an orthogonal code information; and a channel estimation operating unit for estimating a channel by calculating an average of the pilot tones which is unmasked in the unmasking unit.

Abstract: The present invention relates to a method for uplink power control in an OFDMA TDD system. The method for uplink power control according to the present invention comprises: calculating an RSSI average by using RSSI measured from a downlink signal; and carrying out an uplink power control based on the RSSI average, with the RSSI average being calculated by using a weight that is determined depending on a channel variation rate and link symmetry.

Abstract: The present invention relates to a pilot tone generating method and apparatus of an orthogonal frequency division multiple access system and method, and a channel estimation method and apparatus using the same. The channel estimation apparatus includes a pilot tone extracting unit for extracting a pilot tone, which is inserted within a frame with data tone, masked with an orthogonal code; a pilot tone unmasking unit for unmasking of the pilot tone extracted from the pilot tone extracting unit by using an orthogonal code information; and a channel estimation operating unit for estimating a channel by calculating an average of the pilot tones which is unmasked in the unmasking unit.

Abstract: The present invention relates to a pilot tone generating method and apparatus of an orthogonal frequency division multiple access system and method, and a channel estimation method and apparatus using the same. The channel estimation apparatus includes a pilot tone extracting unit for extracting a pilot tone, which is inserted within a frame with data tone, masked with an orthogonal code; a pilot tone unmasking unit for unmasking of the pilot tone extracted from the pilot tone extracting unit by using an orthogonal code information; and a channel estimation operating unit for estimating a channel by calculating an average of the pilot tones which is unmasked in the unmasking unit.

Abstract: The present invention relates to a shuttle type magnetic refrigerator wherein a cold-side heat exchanger 160 is thermally coupled between a far-side inlet/outlet of a first AMR bed and a far-side inlet/outlet of a second AMR bed.

Abstract: The present invention relates to a transmission device and method using space-frequency transmission diversity in a communications system. The transmission device and method using space-frequency transmission diversity according to the present invention is characterised in that data or signals are grouped into 2 or more groups which are then transmitted through different transmission antennae by using different sub-carriers.

Abstract: The present invention relates to a method for uplink power control in an OFDMA TDD system. The method for uplink power control according to the present invention comprises: calculating an RSSI average by using RSSI measured from a downlink signal; and carrying out an uplink power control based on the RSSI average, with the RSSI average being calculated by using a weight that is determined depending on a channel variation rate and link symmetry.

Abstract: A broadcasting receiver, broadcasting transmitter, broadcasting system and a control method are provided. The broadcasting receiver includes a broadcasting reception unit which receives caption data including information on an edge shape of a caption window and caption text to be displayed in the caption window, and a caption processor which processes the received caption data, determines the edge shape of the caption window corresponding to the caption data, and generates the caption window and the caption text according to the edge shape and the caption text. Accordingly, the edge shapes of the caption windows in which the caption text is displayed can be expressed in various forms.

Abstract: The present invention relates to a pilot tone generating method and apparatus of an orthogonal frequency division multiple access system and method, and a channel estimation method and apparatus using the same. The channel estimation apparatus includes a pilot tone extracting unit for extracting a pilot tone, which is inserted within a frame with data tone, masked with an orthogonal code; a pilot tone unmasking unit for unmasking of the pilot tone extracted from the pilot tone extracting unit by using an orthogonal code information; and a channel estimation operating unit for estimating a channel by calculating an average of the pilot tones which is unmasked in the unmasking unit.

Abstract: The present invention relates to a magnetic refrigerator comprising separated hot and cold heat exchange units wherein a heat transfer fluid that exchanges a heat with a magnetic heat exchange unit having the magnetocaloric material pieces arranged to have a gap therebetween separately circulates through a solenoid valve.

Abstract: The present invention relates to a shuttle type magnetic refrigerator wherein a cold-side heat exchanger 160 is thermally coupled between a far-side inlet/outlet of a first AMR bed and a far-side inlet/outlet of a second AMR bed.

Abstract: The present invention relates to a regenerator using a rotation type magnet member and an active magnetic regenerator, and a magnetic refrigerator using the same.

Abstract: A magnetic refrigerator includes independent hot heat exchange unit and cold heat exchange unit wherein separate heat transfer fluids are circulated.

Abstract: The present invention relates to a magnetic refrigerator comprising separated hot and cold heat exchange units wherein a heat transfer fluid that exchanges a heat with a magnetic heat exchange unit having the magnetocaloric material pieces arranged to have a gap therebetween separately circulates through a solenoid valve.

Abstract: An active magnetic refrigerator includes separated hot and cold heat exchange units wherein a heat transfer fluid that exchanges a heat with a magnetic heat exchange unit having the magnetocaloric material pieces arranged to have a gap therebetween separately circulates through a solenoid valve.

Abstract: A magnetic refrigerator includes a magnetic heat exchange unit including a magnet.

Abstract: A magnetic refrigerator includes independent hot heat exchange unit and cold heat exchange unit wherein separate heat transfer fluids are circulated.

Abstract: A display apparatus, including: a receiving part which receives a video signal which comprises a supplementary information; a video processing part which performs a video process with respect to the received video signal; a display part which displays a video based on the processed video signal, and a control part which controls the video processing part to extract and display a channel list information having plurality of channels and information relates to whether a data signal corresponding to the channel list information is included from the received supplementary information to the display part.

Abstract: A broadcasting receiver, broadcasting transmitter, broadcasting system and a control method are provided. The broadcasting receiver includes a broadcasting reception unit which receives caption data including information on an edge shape of a caption window and caption text to be displayed in the caption window, and a caption processor which processes the received caption data, determines the edge shape of the caption window corresponding to the caption data, and generates the caption window and the caption text according to the edge shape and the caption text. Accordingly, the edge shapes of the caption windows in which the caption text is displayed can be expressed in various forms.