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 low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 64800 and a code rate of 7/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).

Abstract: Disclosed is an armrest for a seat, which is accommodated at a lateral side of a seat cushion at a standby position and adjusted in height with respect to the seat cushion at an operation position. The armrest includes: a base disposed adjacent to the seat cushion; a first module rotatably connected to the base and configured to rotate about a first rotation axis so that a height of the first module with respect to the seat cushion is adjusted; and a second module rotatably connected to the first module and configured to rotate about a second rotation axis traversing the first rotation axis so that the second module is disposed horizontally or vertically with respect to the seat cushion.

Abstract: Disclosed is an armrest for a seat, which is accommodated at a lateral side of a seat cushion at a standby position and adjusted in height with respect to the seat cushion at an operation position. The armrest includes: a base disposed adjacent to the seat cushion; a first module rotatably connected to the base and configured to rotate about a first rotation axis so that a height of the first module with respect to the seat cushion is adjusted; and a second module rotatably connected to the first module and configured to rotate about a second rotation axis traversing the first rotation axis so that the second module is disposed horizontally or vertically with respect to the seat cushion.

Abstract: An armrest apparatus for a vehicle includes: a lower arm located on a side surface of a seat and configured to rotate with respect to the seat by power of a lower arm motor; and an upper arm extending along a lengthwise direction of the lower arm and configured to rotate with respect to the lower arm by power of an upper arm motor.

Abstract: A method and apparatus for automatically arranging seats of an autonomous vehicle enable seats to be remotely changed between a standard arrangement mode and a final target arrangement mode. The apparatus includes a manipulation device configured to generate a signal corresponding to a target arrangement mode of seats through manipulation by a passenger, seat motors respectively provided in the seats so as to control positions and postures of the seats, seat controllers for controlling operation of the seat motors, and a vehicle controller configured to transmit a signal from the manipulation device to the seat controllers, transmit an abnormal signal indicating jamming of the seats to the manipulation device or control the seat controllers provided in the vehicle. As a result, it is possible to easily change the seats to a desired arrangement mode in an autonomous vehicle without interference with peripheral components during movement of the seats.

Abstract: An armrest apparatus for a vehicle includes: a lower arm located on a side surface of a seat and configured to rotate with respect to the seat by power of a lower arm motor; and an upper arm extending along a lengthwise direction of the lower arm and configured to rotate with respect to the lower arm by power of an upper arm motor.

Abstract: A seat control system facilitating a vehicle may include a plurality of seats that are electrically controlled indoors to avoid interference between the seats or collision between occupants when changing a position of each seat and to adjust a moving speed and a sensitivity of a position-change seat according to the ambient circumstances of the seat so that the collision between occupants or between objects is efficiently prevented, ensuring stability.

Abstract: An auxiliary seat storage apparatus of a seat is disclosed. An auxiliary seat slides in a lower portion of a main seat in a state of being folded to be accommodated in the lower portion of the main seat such that convenience of a user and storability can be improved. Further, when the auxiliary seat is accommodated in the lower portion of the main seat, the auxiliary seat is moved forward so that a foot insertion space is secured to a rear side of the auxiliary seat in a state in which the auxiliary seat is accommodated in the lower portion of the main seat such that ease of access of a passenger sitting on a rear seat can be improved.

Abstract: An auxiliary seat storage apparatus of a seat is disclosed. An auxiliary seat slides in a lower portion of a main seat in a state of being folded to be accommodated in the lower portion of the main seat such that convenience of a user and storability can be improved. Further, when the auxiliary seat is accommodated in the lower portion of the main seat, the auxiliary seat is moved forward so that a foot insertion space is secured to a rear side of the auxiliary seat in a state in which the auxiliary seat is accommodated in the lower portion of the main seat such that ease of access of a passenger sitting on a rear seat can be improved.

Abstract: A relaxing seat for a vehicle may include a fixed rail fixed to a vehicle body; a first moving rail coupled to the fixed rail; a second moving rail coupled to the first moving rail; a back link rotatably coupled to the fixed rail and a seat back frame; a cushion rear-side link including first and second end portions, wherein the first end portion is rotatably coupled to a portion at which a lower end portion of the seat back frame and a rear end portion of a seat cushion frame are rotatably coupled to each other, and the second end portion is rotatably coupled to the first moving rail; and a cushion front-side frame including a first end portion and a second end portion, wherein the first end portion is rotatably coupled to a front end portion of the seat cushion frame, and the second end portion of which is fixedly coupled to the second moving rail.

Abstract: Provided is a structure of a leg-rest which is switchable at a front lower end of a seat between a receiving position where a support panel is folded on the seat and a deploying position where the support panel is drawn out to support the leg of a seated person. The structure of the leg-rest can include a fixing bracket which is fixed to the seat; a rotary arm of which one end is rotatably connected to the fixing bracket; a base slider which is slidably coupled to the rotary arm in a longitudinal direction; an extending slider which is slidably coupled to the base slider in a longitudinal direction and mounted with the support panel; and a rotary assist arm of which one end is separated from the rotary arm to be rotatably connected to the fixing bracket and the other end is rotatably connected to the base slider.

Abstract: Provided is a leg-rest for a vehicle which is switchable at the front lower end of a seat between a receiving position in which the leg-rest is folded on the seat and a deploying position in which the leg-rest is drawn out to support the calves of a passenger, the leg-rest including: a support panel of which the front end is rotatably connected to an extending slider which is folded at the receiving position and unfolded at the deploying position; a tilt link which is spaced apart from a connection point between the support panel and the extending slider so that one end thereof is rotatably connected to the support panel; a slider which is rotatably connected with the other end of the tilt link and tilts up or down the support panel when sliding; and a tilt motor which slides the slider.

Abstract: Provided is a structure of a leg-rest which is switchable at a front lower end of a seat between a receiving position where a support panel is folded on the seat and a deploying position where the support panel is drawn out to support the leg of a seated person. The structure of the leg-rest can include a fixing bracket which is fixed to the seat; a rotary arm of which one end is rotatably connected to the fixing bracket; a base slider which is slidably coupled to the rotary arm in a longitudinal direction; an extending slider which is slidably coupled to the base slider in a longitudinal direction and mounted with the support panel; and a rotary assist arm of which one end is separated from the rotary arm to be rotatably connected to the fixing bracket and the other end is rotatably connected to the base slider.

Abstract: A seat position adjustment apparatus for a vehicle may include fixed rails fixed on a bottom plane; first sliding rails configured to slide in forward and backward directions on the fixed rails respectively, and provided with cushion links rotatably coupled to the cushion frame; second sliding rails configured to move with the first sliding rails and slide on and protrude from the first sliding rails, and formed to support the cushion frame with the cushion links; a driving device mounted to the first sliding rails or the second sliding rails and configured to transmit power to the first sliding rails and the second sliding rails; and a seat back link rotatably mounted on the bottom plane or the fixed rails and rotatably coupled to and supporting a seat back frame.

Abstract: A relaxing seat for a vehicle may include a fixed rail fixed to a vehicle body; a first moving rail coupled to the fixed rail; a second moving rail coupled to the first moving rail; a back link rotatably coupled to the fixed rail and a seat back frame; a cushion rear-side link including first and second end portions, wherein the first end portion is rotatably coupled to a portion at which a lower end portion of the seat back frame and a rear end portion of a seat cushion frame are rotatably coupled to each other, and the second end portion is rotatably coupled to the first moving rail; and a cushion front-side frame including a first end portion and a second end portion, wherein the first end portion is rotatably coupled to a front end portion of the seat cushion frame, and the second end portion of which is fixedly coupled to the second moving rail.

Abstract: A seat position adjustment apparatus for a vehicle may include fixed rails fixed on a bottom plane; first sliding rails configured to slide in forward and backward directions on the fixed rails respectively, and provided with cushion links rotatably coupled to the cushion frame; second sliding rails configured to move with the first sliding rails and slide on and protrude from the first sliding rails, and formed to support the cushion frame with the cushion links; a driving device mounted to the first sliding rails or the second sliding rails and configured to transmit power to the first sliding rails and the second sliding rails; and a seat back link rotatably mounted on the bottom plane or the fixed rails and rotatably coupled to and supporting a seat back frame.

Abstract: Provided is a leg-rest for a vehicle which is switchable at the front lower end of a seat between a receiving position in which the leg-rest is folded on the seat and a deploying position in which the leg-rest is drawn out to support the calves of a passenger, the leg-rest including: a support panel of which the front end is rotatably connected to an extending slider which is folded at the receiving position and unfolded at the deploying position; a tilt link which is spaced apart from a connection point between the support panel and the extending slider so that one end thereof is rotatably connected to the support panel; a slider which is rotatably connected with the other end of the tilt link and tilts up or down the support panel when sliding; and a tilt motor which slides the slider.

Abstract: A seat position adjustment apparatus for a vehicle may include fixed rails fixed on a bottom plane; first sliding rails configured to slide in forward and backward directions on the fixed rails respectively, and provided with cushion links rotatably coupled to the cushion frame; second sliding rails configured to move with the first sliding rails and slide on and protrude from the first sliding rails, and formed to support the cushion frame with the cushion links; a driving device mounted to the first sliding rails or the second sliding rails and configured to transmit power to the first sliding rails and the second sliding rails; and a seat back link rotatably mounted on the bottom plane or the fixed rails and rotatably coupled to and supporting a seat back frame.