KR950002483A - Mode information and motion vector generator of H.D-Mac decoder - Google Patents

Mode information and motion vector generator of H.D-Mac decoder Download PDF

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Publication number
KR950002483A
KR950002483A KR1019930012104A KR930012104A KR950002483A KR 950002483 A KR950002483 A KR 950002483A KR 1019930012104 A KR1019930012104 A KR 1019930012104A KR 930012104 A KR930012104 A KR 930012104A KR 950002483 A KR950002483 A KR 950002483A
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KR
South Korea
Prior art keywords
motion vector
mode information
code
bit
mode
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KR1019930012104A
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Korean (ko)
Inventor
노기홍
여훈구
김정미
이기순
Original Assignee
김영욱
생산기술연구원
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Priority to KR1019930012104A priority Critical patent/KR950002483A/en
Publication of KR950002483A publication Critical patent/KR950002483A/en

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Abstract

본 발명은 MD-MAC 디코더에서 DATV채널을 통해 전송된 DATV코드로부터 모드정보와 움직임 벡터를 발생시키는 장치에 관한 것이다. 본 발명은 움직임 벡터로 사용하고 남은 움직임 벡터 코드에 모드정보를 포함시켜 사용하여 움직임 정보를 8비트의 움직임 벡터 코드만으로 표현하여 처리한다. 그 결과 모드 정보용 룩업테이블 및 메모리를 사요하지 않음으로써 HD-MAC디코더의 제작 비용 및 부피를 줄일 수 있으며, 정보 전달이 8비트로 이루어지므로 회로 설계가 용이해진다.The present invention relates to an apparatus for generating mode information and a motion vector from a DATV code transmitted through a DATV channel in an MD-MAC decoder. According to the present invention, the motion information is represented by only 8-bit motion vector codes by using mode information in the remaining motion vector codes. As a result, the cost and volume of HD-MAC decoders can be reduced by eliminating the need for a lookup table and memory for mode information. The 8-bit information transfer facilitates circuit design.

Description

에이치 디-맥 디코더의 모드정보 및 움직임 벡터 발생장치Mode information and motion vector generator of H.D-Mac decoder

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

제2도는 본 발명에 따른 HD-MAC 디코더의 모드정보 및 움직임 벡터 발생장치.2 is a mode information and motion vector generator of the HD-MAC decoder according to the present invention.

Claims (4)

다수의 블록으로 이루어진 프레임이 연속적으로 입력되는 HD-MAC 디코더에서, 각각의 블록에 대한 움직임 정보를 나타내는 DATV(Digitally Assisted Television) 코드를 수신하여 영상신호 처리부(180)에서 필요한 각 블록의 모드정보 및 움직임 백터를 얻기 위한 것으로, DATV 코드에 대응하는 모든 발생 가능한 모드정보 및 움직임벡터를 저장하되, 움직임 벡터에 할당된 n비트의 움직임 벡터 코드로 각각의 움직임 벡터를 저장하고 움직임 벡터로 사용하고 남은 움직임 벡터 코드로 모드정보를 사전설정하여 저장하며, 수신된 DATV 코드에 대응하여 n 비트 움직임 벡터 코드를 발생시키는 록업테이블(120)과; 상기 록엽데이클로부터 출력되는 n비트 움직임 벡터 코드를 상기 영상신호처리부(180)로 n비트 단위로 전송하는 전송수단(200)과; 상기 전송수단(200)에서 분기된 n비트 움직임 벡터 코드를 해석하여 m비트 모드정보를 상기 영상신호처리부(180)로 제공하는 모드해석수단(190)을 포함하며, 여기서 m,n은 양의 정수인 HD-MAC 디코더의 모드정보 및 움직임 벡터 발생장치.In the HD-MAC decoder in which a frame composed of a plurality of blocks is continuously input, a DATV (Digitally Assisted Television) code indicating motion information of each block is received, and the mode information of each block required by the image signal processor 180 and To obtain a motion vector, it stores all possible mode information and motion vectors corresponding to the DATV code, and stores each motion vector with n-bit motion vector code assigned to the motion vector and uses the remaining motion vector as a motion vector. A lock-up table 120 for presetting and storing mode information in a vector code and generating an n-bit motion vector code corresponding to the received DATV code; Transmission means (200) for transmitting the n-bit motion vector code output from the lock leaf data to the video signal processor (180) in n bit units; A mode analysis means 190 for analyzing the n-bit motion vector code branched from the transmission means 200 and providing m-bit mode information to the video signal processor 180, where m and n are positive integers. Mode information and motion vector generator of HD-MAC decoder. 제1항에 있어서, 상기 모드정보는 20ms, 40ms,80ms모드를 나타내며, 상기 움직임 벡터는 169개의 움직임 벡터 코드로 표현되는 HD-MAC 디코더의 모드 정보 및 움직임 벡터 발생장치.The apparatus of claim 1, wherein the mode information represents a 20 ms, 40 ms, or 80 ms mode, and the motion vector is represented by 169 motion vector codes. 제2항에 있어서, 상기 모드해석수단(190)은 움직임 벡터 코드가 169개의 움직임 벡터에 속하면 40ms 모드정보를, 20ms로 사전 설정된 움직임 벡터 코드가 입력되면 20ms로 모드정보를, 80ms로 사전 설정된 움직임 벡터 코드가 입력되면 80ms 모드 정보를 발생시키는 HD-MAC디코더의 모드정보 및 움직임 벡터 발생장치.The method of claim 2, wherein the mode analysis unit 190 presets 40ms of mode information when the motion vector code belongs to 169 motion vectors, and sets 20ms of mode information when the motion vector code preset to 20ms is input and 80ms. Mode information and motion vector generator of HD-MAC decoder which generates 80ms mode information when motion vector code is input. 제1항에 있어서, 상기 록업테이블(120)로부터 출력되는 각각의 블록에 대한 n비트 움직임 벡터 코드를 한 프레임 저장하는 메모리(160)와; 상기 룩업테이블과 상기 메모리를 연결하며 n비트 움직임 벡터에 러 코드를 n비트 단위로 전송하는 수단을 더 포함하는 모드정보 및 움직임 벡터 발생장치.The memory device of claim 1, further comprising: a memory (160) for storing one frame of n-bit motion vector codes for each block outputted from the lockup table (120); And a means for connecting the lookup table and the memory and transmitting an error code in n-bit units to an n-bit motion vector. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930012104A 1993-06-30 1993-06-30 Mode information and motion vector generator of H.D-Mac decoder KR950002483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930012104A KR950002483A (en) 1993-06-30 1993-06-30 Mode information and motion vector generator of H.D-Mac decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930012104A KR950002483A (en) 1993-06-30 1993-06-30 Mode information and motion vector generator of H.D-Mac decoder

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