公开(公告)号：US10790856B2

公开(公告)日：2020-09-29

申请号：US16240624

申请日：2019-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Chul Soo Lee ,  In Hwan Choi ,  Ho Taek Hong ,  Kook Yeon Kwak ,  Hyoung Gon Lee ,  Jae Hyung Song ,  Jin Pil Kim ,  Won Gyu Song ,  Joon Hui Lee ,  Jin Woo Kim ,  Byoung Gill Kim ,  Jong Yeul Suh ,  Kyu Tae Ahn

IPC: H03M13/00 ,  H03M13/27 ,  H04L1/00 ,  H04L12/18 ,  H04H60/11 ,  H04N19/70 ,  H04N19/61 ,  H04N21/435 ,  H04N21/438 ,  H04N21/4623 ,  H04N21/6433 ,  H04H40/18 ,  H04L29/06 ,  H04H20/65 ,  H03M13/15

Abstract: A method of transmitting a broadcast signal includes encoding mobile data for FEC (Forward Error Correction); encoding signaling information for signaling the mobile data; allocating the encoded mobile data and signaling data into a transmission frame; and transmitting the broadcast signal including the transmission frame, wherein the transmission frame includes a service signaling table having service_type information identifying a type of a service of the mobile data and hidden information indicating whether the service of the mobile data is hidden or not.

公开(公告)号：US10686617B2

公开(公告)日：2020-06-16

申请号：US15854559

申请日：2017-12-26

Applicant: LG ELECTRONICS INC.

Inventor： In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Jong Moon Kim ,  Won Gyu Song

IPC: H04L1/18 ,  H04L12/18 ,  H04N21/2383 ,  H04L1/00 ,  H04H20/71 ,  H03M13/27 ,  H04N21/438

Abstract: A digital broadcasting system and method of processing data are disclosed. Herein, a method of processing data in a transmitting system includes creating a data group including a plurality of mobile service data packets, re-adjusting a relative position of at least one main service data packet of a main service data section, the main service data section including a plurality of main service data packets, and multiplexing the mobile service data of the data group and the main service data of the main service data section in burst units. Herein, a position of an audio data packet among the main service data packets of the main service data section may be re-adjusted. Also, a position of an audio data packet included in the main service data section may be re-adjusted based upon a multiplexing position of the main service data section.

公开(公告)号：US10277255B2

公开(公告)日：2019-04-30

申请号：US14864490

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Byoung Gill Kim ,  In Hwan Choi ,  Kyung Won Kang ,  Kook Yeon Kwak ,  Woo Chan Kim

IPC: H03M13/27 ,  H04L25/02 ,  H04L25/03 ,  H04N19/89 ,  H04N19/895 ,  H03M13/29 ,  H04L1/00 ,  H04L12/18 ,  H04N21/236 ,  H04N21/63 ,  H04N5/38 ,  H04N7/12 ,  H03M13/00 ,  H04N5/40 ,  H04N5/455 ,  H04N5/21

Abstract: A channel equalizer includes a first transformer, an estimator, an average calculator, a second transformer, a coefficient calculator, a compensator, and a third transformer. The first transformer converts normal data into frequency domain data, where a known data sequence is periodically repeated in the normal data. The estimator estimates channel impulse responses (CIR) during known data intervals adjacent to each normal data block. The average calculator calculates an average value of the CIRs. The second transformer converts the average value into frequency domain data. The coefficient calculator calculates equalization coefficients using the average value, and the compensator compensates channel distortion of each normal data block using the coefficients. The third transformer converts the compensated data block into time domain data.

公开(公告)号：US10244274B2

公开(公告)日：2019-03-26

申请号：US16107780

申请日：2018-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Jong Moon Kim ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Won Gyu Song ,  Jin Woo Kim ,  Hyoung Gon Lee

IPC: H04N21/235 ,  H04L27/06 ,  H04L7/04 ,  H04N21/2383 ,  H04L1/00 ,  H04L27/227 ,  H04N21/438 ,  H04L7/027 ,  H04N5/455 ,  H04N5/44

Abstract: A digital television (DTV) receiving system includes an information detector, a resampler, a timing recovery unit, and a carrier recovery unit. The information detector detects a known data sequence which is periodically inserted in a digital television (DTV) signal received from a DTV transmitting system. The resampler resamples the DTV signal at a predetermined resampling rate. The timing recovery unit performs timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence. The carrier recovery unit performs carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence.

公开(公告)号：USRE47183E1

公开(公告)日：2018-12-25

申请号：US14638900

申请日：2015-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Chul Soo Lee ,  In Hwan Choi ,  Kook Yeon Kwak ,  Jin Woo Kim ,  Jae Hyung Song ,  Jin Pil Kim ,  Won Gyu Song ,  Hyoung Gon Lee ,  Byoung Gill Kim ,  Jong Yeul Suh

IPC: H04L27/00 ,  H04B1/00 ,  H04H20/30 ,  H04H60/73 ,  H04H20/57

Abstract: A method of processing a digital broadcast signal in a transmitter includes encoding signaling information including a transmission parameter channel, including transmission parameters and a fast information channel (FIC) including cross layer information for mobile service acquisition, and transmitting the broadcast signal including ensembles including the encoded signaling information. The FIC is divided into FIC segments, each FIC segment including a FIC segment header and a FIC segment payload. The FIC segment header includes type information indicating a type of the FIC segment, the FIC further including a first ensemble identifier identifying a specific ensemble including a service map table (SMT). The SMT includes a header including a second ensemble identifier corresponding to the first ensemble identifier, a payload including service acquisition information of the specific ensemble, and IP access information of a mobile service for acquiring an IP datagram of the mobile service from the specific ensemble.

公开(公告)号：US10097312B2

公开(公告)日：2018-10-09

申请号：US15831259

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyung Song ,  In Hwan Choi ,  Ho Taek Hong ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jong Yeul Suh ,  Jin Pil Kim ,  Won Gyu Song ,  Chul Soo Lee ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Joon Hui Lee

IPC: H04L1/00 ,  H04N21/414 ,  H04N21/426 ,  H04N21/434 ,  H04N21/442 ,  H04L29/12 ,  H04L29/08 ,  H03M13/27 ,  H03M13/29 ,  H04N21/643

Abstract: The present invention is directed to a digital broadcast system and a data processing method. A broadcast signal in which mobile service data and main service data are multiplexed is transmitted and received. Then, in a broadcasting receiver, the program table information including information about a service or a program of an ensemble is parsed according to an identifier of the ensemble in which the mobile service data are multiplexed, in the received broadcast signal. And a mobile service is outputted by using the mobile service data and the parsed program table information.

公开(公告)号：US10075188B2

公开(公告)日：2018-09-11

申请号：US15407711

申请日：2017-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyen O Oh ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Won Gyu Song ,  Jin Woo Kim ,  Hyoung Gon Lee

IPC: H03M13/27 ,  H04N21/434 ,  H04N21/2365 ,  H04N21/438 ,  H04N19/44 ,  H04N19/42 ,  H04N19/89 ,  H04H20/71 ,  H04L1/00 ,  H03M13/29

CPC classification number: H03M13/2792 ,  H03M13/2906 ,  H04H20/71 ,  H04L1/0041 ,  H04L1/0071 ,  H04N19/42 ,  H04N19/44 ,  H04N19/89 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/4382

Abstract: A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.

公开(公告)号：US20180123811A1

公开(公告)日：2018-05-03

申请号：US15854559

申请日：2017-12-26

Applicant: LG ELECTRONICS INC.

Inventor： In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Jong Moon Kim ,  Won Gyu Song

IPC: H04L12/18 ,  H04L1/00 ,  H03M13/27 ,  H04H20/71 ,  H04N21/2383

Abstract: A digital broadcasting system and method of processing data are disclosed. Herein, a method of processing data in a transmitting system includes creating a data group including a plurality of mobile service data packets, re-adjusting a relative position of at least one main service data packet of a main service data section, the main service data section including a plurality of main service data packets, and multiplexing the mobile service data of the data group and the main service data of the main service data section in burst units. Herein, a position of an audio data packet among the main service data packets of the main service data section may be re-adjusted. Also, a position of an audio data packet included in the main service data section may be re-adjusted based upon a multiplexing position of the main service data section.

公开(公告)号：USRE46674E1

公开(公告)日：2018-01-16

申请号：US14549455

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Il Soo Cho ,  Hyeon Cheol Cho ,  Jong Sun Park ,  In Hwan Choi ,  Hyoung Gon Lee ,  Won Gyu Song ,  Seung Man Kim ,  Jong Moon Kim ,  Jin Woo Kim ,  Kook Yeon Kwak ,  Byoung Gill Kim

IPC: H04L27/00 ,  H04H20/57 ,  H04H20/22

CPC classification number: H04H20/57 ,  H03M13/253 ,  H03M13/256 ,  H03M13/2936 ,  H03M13/6538 ,  H04B7/0802 ,  H04H20/22 ,  H04H60/07 ,  H04H2201/60 ,  H04L1/00 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0075 ,  H04L1/06

Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes N number of antenna elements, a demodulator, a transmission parameter detector, and a block decoder. The N number of antenna elements receives each of the broadcast signals. The demodulator demodulates the broadcast signal having greater signal strength among each of the received broadcast signals. The transmission parameter detector detects the transmission parameter. The block decoder symbol-decodes the mobile broadcast service data included in the received broadcast signal in block units, based upon the detected transmission parameter.

公开(公告)号：US09743075B2

公开(公告)日：2017-08-22

申请号：US14873531

申请日：2015-10-02

Applicant: LG ELECTRONICS INC.

Inventor： Kook Yeon Kwak ,  Kwan Suk Kim ,  Jong Yeul Suh

IPC: H04N13/00 ,  H04N13/04 ,  G02B27/22

CPC classification number: H04N13/341 ,  G02B27/2264 ,  H04N13/398 ,  H04N2013/40 ,  H04N2013/403

Abstract: An image display apparatus according to an embodiment of the present invention comprises: an IR emitter controller for recognizing a pair of 3D glasses connected to the image display apparatus; a video multiplexer for receiving a plurality of displayed video data using a plurality of pairs of 3D glasses, setting a frame rate for the plurality of video data to assign a frame period thereto, and multiplexing the plurality video data according to the frame period assigned at the set frame rate, when the plurality of pairs of 3D glasses is connected to the image data apparatus; and a display unit for frame-sequentially displaying the multiplexed video data.