公开(公告)号：CA2482815C

公开(公告)日：2008-07-08

申请号：CA2482815

申请日：2003-04-17

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM DAE-JIN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  KIM SUNG-HOON ,  SIM YONG-HUN

IPC: H04N7/015 ,  H04L25/03 ,  H04N5/21 ,  H04N5/44 ,  H04N7/12

Abstract: In a channel equalizer applicable to a digital television receiver, a forward filter and a backward filter perform filtering to an input signal and a predetermined signal. A Viterbi decoder corrects errors during a transmission procedure in a blind mode. A training symbol storing block stores training symbols. An output signal of the Viterbi decoder and symbols are provided to the backward filter in accordance with a blind mode or a training mode. A Kalman gain is calculated in a Kalman gain calculating block and an error signal is calculated by comparing an equalized signal, symbols, and the output signal of the Viterbi decoder with one another. A tap coefficient is updated by using the calculated error signal and the Kalman gain.

公开(公告)号：CA2512670C

公开(公告)日：2012-03-20

申请号：CA2512670

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM SUNG-HOON ,  JI KUM-RAN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  SHIM YONG-HOON ,  KIM DAE-JIN ,  OH YOUNG-HO

IPC: H04N7/015 ,  H04N7/173 ,  C07C67/52 ,  C07C67/54 ,  C07C69/82 ,  G01S1/02 ,  G01S5/02 ,  G01S5/06 ,  G01S5/12 ,  G01S19/27 ,  G02B26/10 ,  G03B5/00 ,  G03B7/093 ,  G03B11/00 ,  G03B17/02 ,  G04G7/02 ,  G06F1/16 ,  G06F3/00 ,  G06F9/46 ,  G06F11/00 ,  G06F11/10 ,  G06F12/10 ,  G06F13/00 ,  G06F13/12 ,  G06F13/36 ,  G06F13/362 ,  G06F15/00 ,  G06F15/16 ,  G06F15/173 ,  G06F21/24 ,  G06K9/00 ,  G06K9/62 ,  G06K17/00 ,  G06K19/00 ,  G06T9/00 ,  G08C19/16 ,  G09C1/00 ,  G09G3/02 ,  G10L19/00 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  G11B20/22 ,  H01L27/00 ,  H01L27/146 ,  H01Q1/24 ,  H01Q21/24 ,  H03L7/091 ,  H03M13/03 ,  H03M13/13 ,  H03M13/23 ,  H03M13/27 ,  H03M13/29 ,  H04B1/16 ,  H04B1/707 ,  H04B7/005 ,  H04B7/185 ,  H04B7/24 ,  H04B7/26 ,  H04B14/00 ,  H04B17/00 ,  H04H60/72 ,  H04J3/06 ,  H04J13/00 ,  H04J13/16 ,  H04L1/00 ,  H04L1/18 ,  H04L7/00 ,  H04L9/08 ,  H04L9/10 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32 ,  H04L12/08 ,  H04L12/16 ,  H04L12/28 ,  H04L12/417 ,  H04L12/46 ,  H04L12/54 ,  H04L25/02 ,  H04L25/03 ,  H04L25/49 ,  H04L25/497 ,  H04L27/02 ,  H04L27/10 ,  H04L27/156 ,  H04L27/18 ,  H04L27/34 ,  H04L47/2416 ,  H04L69/40 ,  H04M1/00 ,  H04M1/66 ,  H04M1/715 ,  H04M1/73 ,  H04M3/00 ,  H04M3/16 ,  H04M3/22 ,  H04M3/42 ,  H04M11/00 ,  H04M11/06 ,  H04N1/028 ,  H04N1/031 ,  H04N1/191 ,  H04N5/04 ,  H04N5/073 ,  H04N5/12 ,  H04N5/225 ,  H04N5/232 ,  H04N5/38 ,  H04N5/44 ,  H04N5/46 ,  H04N5/60 ,  H04N5/64 ,  H04N5/66 ,  H04N5/74 ,  H04N5/76 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N5/907 ,  H04N5/91 ,  H04N5/92 ,  H04N7/01 ,  H04N7/08 ,  H04N7/16 ,  H04N7/24 ,  H04N7/26 ,  H04N7/36 ,  H04N7/52 ,  H04N9/31 ,  H04N9/64 ,  H04N9/79 ,  H04N9/804 ,  H04N17/00 ,  H04N21/41 ,  H04N21/414 ,  H04N101/00 ,  H04Q3/00 ,  H04R3/12 ,  H04W4/06 ,  H04W4/10 ,  H04W4/12 ,  H04W4/14 ,  H04W4/16 ,  H04W8/02 ,  H04W8/06 ,  H04W8/08 ,  H04W8/16 ,  H04W8/20 ,  H04W8/24 ,  H04W8/26 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W24/00 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/04 ,  H04W28/08 ,  H04W28/16 ,  H04W28/22 ,  H04W36/02 ,  H04W36/04 ,  H04W36/18 ,  H04W36/30 ,  H04W40/22 ,  H04W48/06 ,  H04W48/08 ,  H04W48/14 ,  H04W48/16 ,  H04W52/02 ,  H04W52/24 ,  H04W56/00 ,  H04W60/00 ,  H04W64/00 ,  H04W68/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08 ,  H04W76/02 ,  H04W76/04 ,  H04W76/06 ,  H04W80/06 ,  H04W84/04 ,  H04W84/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/12 ,  H04W88/18 ,  H04W92/12

Abstract: The present invention relates to a Vestigial Side Band (VSB) Digital Television (DTV) in agreement with the DTV standards (A/53) of the Advanced Television System Committee (ATSC), and to a method thereof. More particularly, it provides 4-VSB DTV transceiver that improves reception performance of a receiver by transmitting and receiving dual streams formed of normal data and robust data without increasing average power, regardless of a mixing rate of the normal and robust data. The 4-VSB DTV transceiver of the present research includes an encoding unit for encoding the robust data to be mapped to one of two groups having 4 levels {-5, -3, 1, 7} and {-7, -1, 3, 5}.

公开(公告)号：BR0317951A

公开(公告)日：2005-11-29

申请号：BR0317951

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM SUNG-HOON ,  JI KUM-RAN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  SHIM YONG-HOON ,  KIM DAE-JIN ,  OH YOUNG-HO

IPC: H04N7/173 ,  C07C67/52 ,  C07C67/54 ,  C07C69/82 ,  G01S1/02 ,  G01S5/02 ,  G01S5/06 ,  G01S5/12 ,  G01S19/27 ,  G02B26/10 ,  G03B5/00 ,  G03B7/093 ,  G03B11/00 ,  G03B17/02 ,  G04G7/02 ,  G06F1/16 ,  G06F3/00 ,  G06F9/46 ,  G06F11/00 ,  G06F11/10 ,  G06F12/10 ,  G06F13/00 ,  G06F13/12 ,  G06F13/36 ,  G06F13/362 ,  G06F15/00 ,  G06F15/16 ,  G06F15/173 ,  G06F21/24 ,  G06K9/00 ,  G06K9/62 ,  G06K17/00 ,  G06K19/00 ,  G06T9/00 ,  G08C19/16 ,  G09C1/00 ,  G09G3/02 ,  G10L19/00 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  G11B20/22 ,  H01L27/00 ,  H01L27/146 ,  H01Q1/24 ,  H01Q21/24 ,  H03L7/091 ,  H03M13/03 ,  H03M13/13 ,  H03M13/23 ,  H03M13/27 ,  H03M13/29 ,  H04B1/16 ,  H04B1/707 ,  H04B7/005 ,  H04B7/185 ,  H04B7/24 ,  H04B7/26 ,  H04B14/00 ,  H04B17/00 ,  H04H60/72 ,  H04J3/06 ,  H04J13/00 ,  H04J13/16 ,  H04L1/00 ,  H04L1/18 ,  H04L7/00 ,  H04L9/08 ,  H04L9/10 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32 ,  H04L12/08 ,  H04L12/16 ,  H04L12/28 ,  H04L12/417 ,  H04L12/46 ,  H04L12/54 ,  H04L25/02 ,  H04L25/03 ,  H04L25/49 ,  H04L25/497 ,  H04L27/02 ,  H04L27/10 ,  H04L27/156 ,  H04L27/18 ,  H04L27/34 ,  H04L47/2416 ,  H04L69/40 ,  H04M1/00 ,  H04M1/66 ,  H04M1/715 ,  H04M1/73 ,  H04M3/00 ,  H04M3/16 ,  H04M3/22 ,  H04M3/42 ,  H04M11/00 ,  H04M11/06 ,  H04N1/028 ,  H04N1/031 ,  H04N1/191 ,  H04N5/04 ,  H04N5/073 ,  H04N5/12 ,  H04N5/225 ,  H04N5/232 ,  H04N5/38 ,  H04N5/44 ,  H04N5/46 ,  H04N5/60 ,  H04N5/64 ,  H04N5/66 ,  H04N5/74 ,  H04N5/76 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N5/907 ,  H04N5/91 ,  H04N5/92 ,  H04N7/01 ,  H04N7/015 ,  H04N7/08 ,  H04N7/16 ,  H04N7/24 ,  H04N7/26 ,  H04N7/36 ,  H04N7/52 ,  H04N9/31 ,  H04N9/64 ,  H04N9/79 ,  H04N9/804 ,  H04N17/00 ,  H04N21/41 ,  H04N21/414 ,  H04N101/00 ,  H04Q3/00 ,  H04R3/12 ,  H04W4/06 ,  H04W4/10 ,  H04W4/12 ,  H04W4/14 ,  H04W4/16 ,  H04W8/02 ,  H04W8/06 ,  H04W8/08 ,  H04W8/16 ,  H04W8/20 ,  H04W8/24 ,  H04W8/26 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W24/00 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/04 ,  H04W28/08 ,  H04W28/16 ,  H04W28/22 ,  H04W36/02 ,  H04W36/04 ,  H04W36/18 ,  H04W36/30 ,  H04W40/22 ,  H04W48/06 ,  H04W48/08 ,  H04W48/14 ,  H04W48/16 ,  H04W52/02 ,  H04W52/24 ,  H04W56/00 ,  H04W60/00 ,  H04W64/00 ,  H04W68/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08 ,  H04W76/02 ,  H04W76/04 ,  H04W76/06 ,  H04W80/06 ,  H04W84/04 ,  H04W84/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/12 ,  H04W88/18 ,  H04W92/12

Abstract: The present invention relates to a Vestigial Side Band (VSB) Digital Television (DTV) in agreement with the DTV standards (A/53) of the Advanced Television System Committee (ATSC), and to a method thereof. More particularly, it provides 4-VSB DTV transceiver that improves reception performance of a receiver by transmitting and receiving dual streams formed of normal data and robust data without increasing average power, regardless of a mixing ratio of the normal and robust data. The 4-VSB DTV transceiver of the present research includes an encoding unit for encoding the robust data to be mapped to one of two groups having 4 levels {-5, -3, 1, 7} and {-7, -1, 3, 5}.

公开(公告)号：CA2482815A1

公开(公告)日：2003-10-30

申请号：CA2482815

申请日：2003-04-17

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SIM YONG-HUN ,  KIM SUNG-HOON ,  KIM DAE-JIN ,  KIM SEUNG-WON ,  AHN CHIETEUK

IPC: H04N7/015 ,  H04L25/03 ,  H04N5/21 ,  H04N5/44 ,  H04N7/12

Abstract: In a channel equalizer applicable to a digital television receiver, a forwar d filter and a backward filter perform filtering to an input signal and a predetermined signal. A Viterbi decoder corrects errors during a transmissio n procedure in a blind mode. A training symbol storing block stores training symbols. An output signal of the Viterbi decoder and symbols are provided to the backward filter in accordance with a blind mode or a training mode. A Kalman gain is calculated in a Kalman gain calculating block and an error signal is calculated by comparing an equalized signal, symbols, and the outp ut signal of the Viterbi decoder with one another. A tap coefficient is updated by using the calculated error signal and the Kalman gain.

公开(公告)号：AU2003288781A1

公开(公告)日：2004-07-29

申请号：AU2003288781

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM SUNG-HOON ,  JI KUM-RAN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  SHIM YONG-HOON ,  KIM DAE-JIN ,  OH YOUNG-HO

IPC: C07C67/52 ,  C07C67/54 ,  C07C69/82 ,  G01S5/06 ,  G01S5/12 ,  G01S19/27 ,  G02B26/10 ,  G03B5/00 ,  G03B7/093 ,  G03B11/00 ,  G03B17/02 ,  G04G7/02 ,  G06F1/16 ,  G06F3/00 ,  G06F9/46 ,  G06F11/00 ,  G06F11/10 ,  G06F12/10 ,  G06F13/00 ,  G06F13/12 ,  G06F13/36 ,  G06F13/362 ,  G06F15/00 ,  G06F15/16 ,  G06F15/173 ,  G06F21/24 ,  G06K9/00 ,  G06K9/62 ,  G06K17/00 ,  G06K19/00 ,  G06T9/00 ,  G08C19/16 ,  G09C1/00 ,  G09G3/02 ,  G10L19/00 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  G11B20/22 ,  H01L27/00 ,  H01L27/146 ,  H01Q1/24 ,  H01Q21/24 ,  H03L7/091 ,  H03M13/03 ,  H03M13/13 ,  H03M13/23 ,  H03M13/27 ,  H03M13/29 ,  H04B1/16 ,  H04B7/005 ,  H04B7/185 ,  H04B7/24 ,  H04B7/26 ,  H04B14/00 ,  H04B17/00 ,  H04H60/72 ,  H04J3/06 ,  H04J13/16 ,  H04L1/00 ,  H04L1/18 ,  H04L7/00 ,  H04L9/08 ,  H04L9/10 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32 ,  H04L12/08 ,  H04L12/16 ,  H04L12/28 ,  H04L12/417 ,  H04L12/46 ,  H04L12/54 ,  H04L25/02 ,  H04L25/03 ,  H04L25/49 ,  H04L25/497 ,  H04L27/02 ,  H04L27/10 ,  H04L27/156 ,  H04L27/18 ,  H04L27/34 ,  H04M1/00 ,  H04M1/66 ,  H04M1/715 ,  H04M1/73 ,  H04M3/00 ,  H04M3/16 ,  H04M3/22 ,  H04M3/42 ,  H04M11/00 ,  H04M11/06 ,  H04N1/028 ,  H04N1/031 ,  H04N1/191 ,  H04N5/04 ,  H04N5/073 ,  H04N5/12 ,  H04N5/225 ,  H04N5/232 ,  H04N5/38 ,  H04N5/46 ,  H04N5/60 ,  H04N5/64 ,  H04N5/66 ,  H04N5/74 ,  H04N5/76 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N5/907 ,  H04N5/91 ,  H04N5/92 ,  H04N7/01 ,  H04N7/015 ,  H04N7/08 ,  H04N7/26 ,  H04N7/36 ,  H04N7/52 ,  H04N9/31 ,  H04N9/64 ,  H04N9/79 ,  H04N9/804 ,  H04N17/00 ,  H04N21/41 ,  H04N21/414 ,  H04N101/00 ,  H04Q3/00 ,  H04R3/12 ,  H04W4/06 ,  H04W4/10 ,  H04W4/12 ,  H04W4/14 ,  H04W4/16 ,  H04W8/02 ,  H04W8/06 ,  H04W8/08 ,  H04W8/16 ,  H04W8/20 ,  H04W8/24 ,  H04W8/26 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W24/00 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/04 ,  H04W28/08 ,  H04W28/16 ,  H04W28/22 ,  H04W36/02 ,  H04W36/04 ,  H04W36/18 ,  H04W36/30 ,  H04W40/22 ,  H04W48/06 ,  H04W48/08 ,  H04W48/14 ,  H04W48/16 ,  H04W52/02 ,  H04W52/24 ,  H04W56/00 ,  H04W60/00 ,  H04W64/00 ,  H04W68/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08 ,  H04W76/02 ,  H04W76/04 ,  H04W76/06 ,  H04W80/06 ,  H04W84/04 ,  H04W84/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/12 ,  H04W88/18 ,  H04W92/12

Abstract: The present invention relates to a Vestigial Side Band (VSB) Digital Television (DTV) in agreement with the DTV standards (A/53) of the Advanced Television System Committee (ATSC), and to a method thereof. More particularly, it provides 4-VSB DTV transceiver that improves reception performance of a receiver by transmitting and receiving dual streams formed of normal data and robust data without increasing average power, regardless of a mixing ratio of the normal and robust data. The 4-VSB DTV transceiver of the present research includes an encoding unit for encoding the robust data to be mapped to one of two groups having 4 levels {-5, -3, 1, 7} and {-7, -1, 3, 5}.

公开(公告)号：AU2003225385A1

公开(公告)日：2003-11-03

申请号：AU2003225385

申请日：2003-04-17

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SIM YONG-HUN ,  KIM SEUNG-WON ,  AHN CHIETEUK ,  KIM DAE-JIN ,  KIM SUNG-HOON

IPC: H04N7/015 ,  H04L25/03 ,  H04N5/21 ,  H04N5/44 ,  H04N7/12

Abstract: In a channel equalizer applicable to a digital television receiver, a forward filter and a backward filter perform filtering to an input signal and a predetermined signal. A Viterbi decoder corrects errors during a transmission procedure in a blind mode. A training symbol storing block stores training symbols. An output signal of the Viterbi decoder and symbols are provided to the backward filter in accordance with a blind mode or a training mode. A Kalman gain is calculated in a Kalman gain calculating block and an error signal is calculated by comparing an equalized signal, symbols, and the output signal of the Viterbi decoder with one another. A tap coefficient is updated by using the calculated error signal and the Kalman gain.

公开(公告)号：CA2512670A1

公开(公告)日：2004-07-22

申请号：CA2512670

申请日：2003-12-30

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SHIM YONG-HOON ,  JI KUM-RAN ,  KIM SUNG-HOON ,  OH YOUNG-HO ,  KIM DAE-JIN ,  KIM SEUNG-WON ,  AHN CHIETEUK

IPC: C07C67/52 ,  C07C67/54 ,  C07C69/82 ,  G01S5/06 ,  G01S5/12 ,  G01S19/27 ,  G02B26/10 ,  G03B5/00 ,  G03B7/093 ,  G03B11/00 ,  G03B17/02 ,  G04G7/02 ,  G06F1/16 ,  G06F3/00 ,  G06F9/46 ,  G06F11/00 ,  G06F11/10 ,  G06F12/10 ,  G06F13/00 ,  G06F13/12 ,  G06F13/36 ,  G06F13/362 ,  G06F15/00 ,  G06F15/16 ,  G06F15/173 ,  G06F21/24 ,  G06K9/00 ,  G06K9/62 ,  G06K17/00 ,  G06K19/00 ,  G06T9/00 ,  G08C19/16 ,  G09C1/00 ,  G09G3/02 ,  G10L19/00 ,  G11B20/10 ,  G11B20/14 ,  G11B20/18 ,  G11B20/22 ,  H01L27/00 ,  H01L27/146 ,  H01Q1/24 ,  H01Q21/24 ,  H03L7/091 ,  H03M13/03 ,  H03M13/13 ,  H03M13/23 ,  H03M13/27 ,  H03M13/29 ,  H04B1/16 ,  H04B7/005 ,  H04B7/185 ,  H04B7/24 ,  H04B7/26 ,  H04B14/00 ,  H04B17/00 ,  H04H60/72 ,  H04J3/06 ,  H04J13/16 ,  H04L1/00 ,  H04L1/18 ,  H04L7/00 ,  H04L9/08 ,  H04L9/10 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32 ,  H04L12/08 ,  H04L12/16 ,  H04L12/28 ,  H04L12/417 ,  H04L12/46 ,  H04L12/54 ,  H04L25/02 ,  H04L25/03 ,  H04L25/49 ,  H04L25/497 ,  H04L27/02 ,  H04L27/10 ,  H04L27/156 ,  H04L27/18 ,  H04L27/34 ,  H04M1/00 ,  H04M1/66 ,  H04M1/715 ,  H04M1/73 ,  H04M3/00 ,  H04M3/16 ,  H04M3/22 ,  H04M3/42 ,  H04M11/00 ,  H04M11/06 ,  H04N1/028 ,  H04N1/031 ,  H04N1/191 ,  H04N5/04 ,  H04N5/073 ,  H04N5/12 ,  H04N5/225 ,  H04N5/232 ,  H04N5/38 ,  H04N5/46 ,  H04N5/60 ,  H04N5/64 ,  H04N5/66 ,  H04N5/74 ,  H04N5/76 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N5/907 ,  H04N5/91 ,  H04N5/92 ,  H04N7/01 ,  H04N7/015 ,  H04N7/08 ,  H04N7/26 ,  H04N7/36 ,  H04N7/52 ,  H04N9/31 ,  H04N9/64 ,  H04N9/79 ,  H04N9/804 ,  H04N17/00 ,  H04N21/41 ,  H04N21/414 ,  H04N101/00 ,  H04Q3/00 ,  H04R3/12 ,  H04W4/06 ,  H04W4/10 ,  H04W4/12 ,  H04W4/14 ,  H04W4/16 ,  H04W8/02 ,  H04W8/06 ,  H04W8/08 ,  H04W8/16 ,  H04W8/20 ,  H04W8/24 ,  H04W8/26 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W24/00 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/04 ,  H04W28/08 ,  H04W28/16 ,  H04W28/22 ,  H04W36/02 ,  H04W36/04 ,  H04W36/18 ,  H04W36/30 ,  H04W40/22 ,  H04W48/06 ,  H04W48/08 ,  H04W48/14 ,  H04W48/16 ,  H04W52/02 ,  H04W52/24 ,  H04W56/00 ,  H04W60/00 ,  H04W64/00 ,  H04W68/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08 ,  H04W76/02 ,  H04W76/04 ,  H04W76/06 ,  H04W80/06 ,  H04W84/04 ,  H04W84/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/12 ,  H04W88/18 ,  H04W92/12

Abstract: The present invention relates to a Vestigial Side Band (VSB) Digital Television (DTV) in agreement with the DTV standards (A/53) of the Advanced Television System Committee (ATSC), and to a method thereof. More particularly, it provides 4-VSB DTV transceiver that improves reception performance of a receiver by transmitting and receiving dual streams formed of normal data and robust data without increasing average power, regardless of a mixing rate of the normal and robust data. The 4-VSB DTV transceiver of the present research includes an encoding unit for encoding the robust data to b e mapped to one of two groups having 4 levels {-5, -3, 1, 7} and {-7, -1, 3, 5 }.