Abstract: An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a bootstrap generation unit for generating a bootstrap for signaling a system bandwidth field, corresponding to a system bandwidth for a post-bootstrap, and a baseband sampling rate coefficient; a preamble generation unit for generating a preamble located immediately following the bootstrap in a broadcast signal frame; and a payload generation unit for generating one or more subframes located immediately following the preamble in the broadcast signal frame. Here, the preamble may include L1 signaling data, and the L1 signaling data may include a reduced carrier coefficient.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.

Abstract: Provided is a method of operating a terminal. The method includes determining a profile item applicable to the profile view for the account based on an input received by the terminal and a coordinate indicating a position where the profile item is provided on the profile view. The method includes displaying the profile item on a screen of the terminal based on the determined profile item and the determined coordinate. The method includes receiving an input related to the profile item, and displaying a visual effect corresponding to the input on the screen.

Abstract: An apparatus for predicting performance of a wheel in a vehicle: includes a learning device that generates a latent space for a plurality of two-dimensional (2D) wheel images based on a convolutional autoencoder (CAE), extracts a predetermined number of the plurality of 2D wheel images from the latent space, and learns a dataset having the plurality of 2D wheel images and performance values corresponding to the plurality of 2D wheel images; and a controller that predicts performance for the plurality of 2D wheel images based on a performance prediction model obtained by the learning device.

Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.

Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.

Abstract: A safety belt for a vehicle which can be worn in a manner of wearing suspenders to prevent a concentration of pressure to a part of the body of a seat occupant, and to uniformly distribute impact to thereby safely protect the seat occupant even upon the occurrence of an emergency during travel. To accomplish the above-described object, the safety belt for a vehicle according to the present invention comprises a pair of belts spaced apart from each other in a vertical direction on the front surface of a seatback and a connection unit for interconnecting the pair of belts.

Abstract: A safety belt for a vehicle which can be worn in a manner of wearing suspenders to prevent a concentration of pressure to a part of the body of a seat occupant, and to uniformly distribute impact to thereby safely protect the seat occupant even upon the occurrence of an emergency during travel. To accomplish the above-described object, the safety belt for a vehicle according to the present invention comprises a pair of belts spaced apart from each other in a vertical direction on the front surface of a seatback and a connection unit for interconnecting the pair of belts.

Abstract: The present invention provides a sphincter exerciser for strengthening the sphincters of persons in an effort to prevent diseases, such as aconuresis or encopresis caused by weak sphincters. This sphincter exerciser consists of a body (10), which has two depressions (4), two hinge holes (6) and a window (8). Two footholds (20) are hinged to the two hinge holes (6) by means of two hinge shafts (18). A roller (30) is shafted to the roller bracket (14) of each foothold (20), and is laid on the inclined bottom of an associated depression (4). The exerciser also has a momentum adjuster (40), which is installed in the body (10) and allows a user to adjust momentum while exercising. This momentum adjuster (40) has an adjusting block, two guide rollers (38), a wire (46), and a coil spring (48) connected to the hinge shafts (18) by the wire (46).

Abstract: The present invention provides a sphincter exerciser for strengthening the sphincters of persons in an effort to prevent diseases, such as aconuresis or encopresis caused by weak sphincters. This sphincter exerciser consists of a body (10), which has two depressions (4), two hinge holes (6) and a window (8). Two footholds (20) are hinged to the two hinge holes (6) by means of two hinge shafts (18). A roller (30) is shafted to the roller bracket (14) of each foothold (20), and is laid on the inclined bottom of an associated depression (4). The exerciser also has a momentum adjuster (40), which is installed in the body (10) and allows a user to adjust momentum while exercising. This momentum adjuster (40) has an adjusting block, two guide rollers (38), a wire (46), and a coil spring (48) connected to the hinge shafts (18) by the wire (46).