KR970057729A - Grand Alliance High Definition TV Receiver - Google Patents

Grand Alliance High Definition TV Receiver Download PDF

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Publication number
KR970057729A
KR970057729A KR1019950069145A KR19950069145A KR970057729A KR 970057729 A KR970057729 A KR 970057729A KR 1019950069145 A KR1019950069145 A KR 1019950069145A KR 19950069145 A KR19950069145 A KR 19950069145A KR 970057729 A KR970057729 A KR 970057729A
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KR
South Korea
Prior art keywords
signal
unit
filter unit
data
outputs
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KR1019950069145A
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Korean (ko)
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최영배
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배순훈
대우전자 주식회사
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Priority to KR1019950069145A priority Critical patent/KR970057729A/en
Publication of KR970057729A publication Critical patent/KR970057729A/en

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Abstract

본 발명은 그랜드 얼라이언스 고화질 텔레비전 수신 장치에 관한 것으로서, 본 발명은 튜너부(40)와; 반송파 복원부(42);심볼 타이밍 복구부(44);NTSC 간섭 신호 제거 필터(46);등화부(48);위상 추적부(50);트렐리스 디코더(52);패킷 동기 바이트 검출부(53);데이타 디인터리버(54);리드-솔로몬 디코더(56); 및 데이타 대린더마이저(58)로 구성되어 있으며, 본 발명에 따르면 수신된 데이타 패킷의 동기 바이트가 제대로 검출되는지를 판명하여 그 판정 결과에 따라 등화 상태를 제어함으로써, 수신성능을 향상시킬 수 있다는데 그 이점이 있다.The present invention relates to a Grand Alliance high-definition television receiver, the present invention includes a tuner unit 40; Carrier recovery unit 42; symbol timing recovery unit 44; NTSC interference signal cancellation filter 46; equalizer 48; phase tracking unit 50; trellis decoder 52; packet sync byte detection unit ( 53); data deinterleaver 54; lead-solomon decoder 56; And a data renderer 58. According to the present invention, it is possible to determine whether the sync byte of the received data packet is properly detected and to control the equalization state according to the determination result, thereby improving the reception performance. There is an advantage.

Description

그랜드 얼라이언스 고화질 텔레비전 수신 장치Grand Alliance High Definition Television Receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명에 따른 그랜드 얼라이언스 고화질 텔레비전 수신 장치의 블럭도.4 is a block diagram of a grand alliance high definition television receiver according to the present invention.

Claims (3)

안테나를 통해서 들어오는 고주파 신호를 중간 주파 신호로 낮추어주는 튜너부(40)와;주파수 및 위상동기 루프를 사용하여 신호의 반송파를 복원하는 반송파 복원부 (42); 4 심볼의 세그먼트 동기 신호에 의해 타이밍을 복구하는 심볼 타이밍 복구부(44);동일 채널의 NTSC 신호로부터의 간섭을 제거하는 NTSC 간섭 신호 제거 필터(46);전송 채널의 비이상적인 특성에 영향을 받아 발생된 왜곡을 보상하는 등화부(48); 상기 반송파 복원부(42)에서 완전히 제거하지 못한 위상 오차를 줄이기 위한 위상 추적부(50); 트렐리스 복호화를수행하는 트렐리스 디코더(52); 상기 트렐리스 복호화된 신호를 입력받아 패킷 동기 바이트가 제대로 검출되는지를 판정한 후 그 판정 결과에 따라 제어 신호를 상기 등화부(48)로 출력하는 패킷 동기 바이트 검출부(53);데이타 인터리빙되어 있는 것을 다시 디인터리빙하는 데이타 디인터리버(54);리드-솔로몬 복호화를 수행하는 리드-솔로몬 디코더(56);및 랜덤화되어 있는 데이타를 다시 리랜덤화하는 데이타 디랜더마이저(58)로 구성된 그랜드 얼라이언스 고화질 텔레비전 수신장치.A tuner unit 40 which lowers a high frequency signal received through an antenna to an intermediate frequency signal; a carrier recovery unit 42 which restores a carrier of a signal using a frequency and phase synchronization loop; A symbol timing recovery unit 44 for recovering timing by a four-segment segment synchronization signal; an NTSC interference cancellation filter 46 for removing interference from an NTSC signal of the same channel; affected by a non-ideal characteristic of a transmission channel An equalizer 48 for compensating for the generated distortions; A phase tracking unit 50 for reducing a phase error that is not completely removed by the carrier recovery unit 42; A trellis decoder 52 for performing trellis decoding; A packet sync byte detector 53 which receives the trellis decoded signal and determines whether a packet sync byte is properly detected and outputs a control signal to the equalizer 48 according to the determination result; A grand alliance consisting of a data deinterleaver 54 for reinterleaving the data; a Reed-Solomon decoder 56 for performing lead-solomon decoding; and a data de-randomizer 58 for rerandomizing the randomized data. High Definition Television Receiver. 제1항에 있어서, 상기 등화부(48)가 NTSC간섭 신호 제거 필터(46)으로부터의 입력 신호를 필터링하는 피드포워드 필터부(48-1)와; 판별 신호와 훈련 신호중 선택 신호를 입력받아 필터링하는 피드백 필터부(48-2); 상기 피드포워드 필터부(48-1)로부터의 필터링된 신호와 상기 피드백 필터부(48-2)로부터의 필터링된 신호를 감산하여 감산신호를 출력하는 감산기(48-3);패킷 동기 바이트 검출부(53)로부터의 제어 신호에 따라 상기 감산 신호를 입력받아 판별 신호를 출력하는 신호 판별부 (48-4); 훈련 신호를 발생시키는 훈련 신호 발생부(48-5);상기 판별 신호와 상기 훈련 신호중에서 한 신호를 선택하여 상기 피드백 필터부(54)로 선택된 신호를 출력하는 멀티플랙서(48-6);및 탭계수를 연산하여 상기 피드포워드 필터부(48-1)와 상기 피드백 필터부(48-2)로 연산 결과를 출력하는 탭계수 연산부(48-7)로 구성된 것을 특징으로 하는 그랜드 얼라이언스 고화질 텔레비전 수신장치.2. The apparatus of claim 1, wherein the equalizer (48) comprises: a feed forward filter (48-1) for filtering an input signal from the NTSC interference signal cancellation filter (46); A feedback filter unit 48-2 which receives and filters a selection signal from the discrimination signal and the training signal; A subtractor 48-3 which subtracts the filtered signal from the feedforward filter unit 48-1 and the filtered signal from the feedback filter unit 48-2 and outputs a subtracted signal; A signal discriminating unit 48-4 which receives the subtracted signal in accordance with the control signal from 53) and outputs a discriminating signal; A training signal generator 48-5 for generating a training signal; a multiplexer 48-6 for selecting one signal from the discrimination signal and the training signal and outputting the selected signal to the feedback filter unit 54; And a tap coefficient calculating unit 48-7 which calculates a tap coefficient and outputs a calculation result to the feedforward filter unit 48-1 and the feedback filter unit 48-2. Receiver. 제2항에 있어서, 상기 피드포워드 필터부(48-1)와 상기 피드백 필터부 (48-2)가 유한 충격 응답 필터로 구현된 것을 특징으로 하는 그랜드 얼라이언스 고화질 텔레비전 수신장치.3. The apparatus of claim 2, wherein the feedforward filter unit (48-1) and the feedback filter unit (48-2) are implemented as finite shock response filters. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950069145A 1995-12-30 1995-12-30 Grand Alliance High Definition TV Receiver KR970057729A (en)

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KR1019950069145A KR970057729A (en) 1995-12-30 1995-12-30 Grand Alliance High Definition TV Receiver

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100574605B1 (en) * 1997-04-04 2006-10-19 해리스 코포레이션 Transmission system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100574605B1 (en) * 1997-04-04 2006-10-19 해리스 코포레이션 Transmission system and method

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