KR950024196A - De (D) picture decoding device for fast playback level adjustment - Google Patents

De (D) picture decoding device for fast playback level adjustment Download PDF

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Publication number
KR950024196A
KR950024196A KR1019940000769A KR19940000769A KR950024196A KR 950024196 A KR950024196 A KR 950024196A KR 1019940000769 A KR1019940000769 A KR 1019940000769A KR 19940000769 A KR19940000769 A KR 19940000769A KR 950024196 A KR950024196 A KR 950024196A
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KR
South Korea
Prior art keywords
picture
buffer
speed
fast playback
outputting
Prior art date
Application number
KR1019940000769A
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Korean (ko)
Other versions
KR0132021B1 (en
Inventor
송민진
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940000769A priority Critical patent/KR0132021B1/en
Publication of KR950024196A publication Critical patent/KR950024196A/en
Application granted granted Critical
Publication of KR0132021B1 publication Critical patent/KR0132021B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
    • G11B2020/1075—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data
    • G11B2020/10787—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data parameters, e.g. for decoding or encoding

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 고속 재생 배속에 따라 I픽쳐 사이에 D픽쳐를 적절히 사용 함으로써 고속 재생 속도를 조절하도록 한 고속 재생 레벨 조절을 위한 D 픽쳐 디코딩 장치에 관한 것이다.The present invention relates to a D picture decoding apparatus for fast playback level adjustment for adjusting a fast playback speed by appropriately using a D picture between I pictures according to a fast playback speed.

본 발명은 코딩된 비데오 비트 스트림 데이타에서 I, P, B 픽쳐를 출력하는 버퍼와, 상기 버퍼에 연결되어 D 픽쳐 타입으로 코딩한 D 픽쳐를 출력하는 D 픽쳐 버퍼와, 제1입력단은 상기 버퍼에 연결되고 제2입력단은 D 픽쳐 버퍼에 연결되며 출력단은 비데오 디코더에 연결되는 스위칭부와, 유저가 선택하는 고속 재생 배속에 따라 상기 스위칭부의 스위칭을 제어하여 제1, 제2입력단으로 입력되는 I 픽쳐 및 D 픽쳐가 소정의 순서로 상기 비데오 디코더로 출력되게 하는 고속 재생 제어부로 구성되어, 고속 재생시 P나 B 픽쳐대신 D 픽쳐를 사용함으로써 전체 비트 스트림은 커지지 않으면서도 디코딩이쉽고 고속 재생이 가능하며, 또한, 고속 재생 레벨을 다양하게 조절할 수 있다.The present invention provides a buffer for outputting I, P, and B pictures in coded video bit stream data, a D picture buffer connected to the buffer for outputting a D picture coded with a D picture type, and a first input terminal to the buffer. And a second input terminal connected to a D picture buffer, and an output terminal connected to a video decoder, and an I picture input to the first and second input terminals by controlling the switching of the switching unit according to a high speed reproduction speed selected by the user. And a high-speed playback control unit for outputting the D pictures to the video decoder in a predetermined order, and by using a D picture instead of a P or B picture at high speed, the decoding is easy and high-speed playback is possible without increasing the overall bit stream. In addition, the fast playback level can be variously adjusted.

Description

고속 재생 레벨 조절을 위한 디(D) 픽쳐 디코딩 장치De (D) picture decoding device for fast playback level adjustment

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

도면은 본 발명에 따른 고속 재생 레벨 조절을 위한 D 픽쳐 디코딩 장치의 블럭도이다.Figure is a block diagram of a D picture decoding apparatus for fast playback level adjustment according to the present invention.

Claims (2)

코딩된 비데오 비트 스트림 데이타에서 I, P, B 픽쳐를 출력하는 버퍼와, 상기 버퍼에 연결되어 D 픽쳐 타입으로 코딩한 D 픽쳐를 출력하는 D 픽쳐 버퍼와, 제1입력단은 상기 버퍼에 연결되고 제2입력단은 D 픽쳐 버퍼에 연결되며 출력단은 비데오 디코더에 연결되는 스위칭부와, 유저가 선택하는 고속 재생 배속에 따라 상기 스위칭부의 제1 또는 제2입력단으로 입력되는 I 픽쳐 및 D 픽쳐가 소정의 순서로 상기 비데오 디코더로 출력되도록 상기 스위칭부의 스위칭을 제어하는 고속 재생 제어부로 구성되는 고속 재생 레벨 조절을 위한 D 픽쳐 디코딩 장치.A buffer for outputting I, P, and B pictures in coded video bit stream data, a D picture buffer connected to the buffer for outputting a D picture coded with a D picture type, and a first input terminal connected to the buffer and A second input terminal is connected to a D picture buffer and an output terminal is connected to a video decoder, and an I picture and a D picture input to the first or second input terminal of the switching unit according to a high speed reproduction speed selected by a user are in a predetermined order. And a fast playback control section for controlling the switching of the switching unit to be output to the video decoder. 제1항에 있어서, P 픽쳐로 코딩한 동일한 영상을 I 픽쳐로 구성함을 특징으로 하는 고속 재생 레벨 조절을 위한 D 픽쳐 디코딩 장치.The D picture decoding apparatus of claim 1, wherein the same picture coded with the P picture is configured as an I picture. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940000769A 1994-01-18 1994-01-18 Decoding apparatus with improved high-speed reproducing function KR0132021B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940000769A KR0132021B1 (en) 1994-01-18 1994-01-18 Decoding apparatus with improved high-speed reproducing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940000769A KR0132021B1 (en) 1994-01-18 1994-01-18 Decoding apparatus with improved high-speed reproducing function

Publications (2)

Publication Number Publication Date
KR950024196A true KR950024196A (en) 1995-08-21
KR0132021B1 KR0132021B1 (en) 1998-04-18

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ID=19375787

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940000769A KR0132021B1 (en) 1994-01-18 1994-01-18 Decoding apparatus with improved high-speed reproducing function

Country Status (1)

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KR (1) KR0132021B1 (en)

Also Published As

Publication number Publication date
KR0132021B1 (en) 1998-04-18

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