KR950024054A - Bitstream Data Transmission Device - Google Patents

Bitstream Data Transmission Device Download PDF

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Publication number
KR950024054A
KR950024054A KR1019940000766A KR19940000766A KR950024054A KR 950024054 A KR950024054 A KR 950024054A KR 1019940000766 A KR1019940000766 A KR 1019940000766A KR 19940000766 A KR19940000766 A KR 19940000766A KR 950024054 A KR950024054 A KR 950024054A
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KR
South Korea
Prior art keywords
source
empty
bitstream data
level
buffer
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KR1019940000766A
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Korean (ko)
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KR0174910B1 (en
Inventor
김근환
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배순훈
대우전자 주식회사
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Priority to KR1019940000766A priority Critical patent/KR0174910B1/en
Publication of KR950024054A publication Critical patent/KR950024054A/en
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Publication of KR0174910B1 publication Critical patent/KR0174910B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation

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

Abstract

본 비트스트림 데이터 전송장치는 비디오 또는 오디오 디코더와 컴퓨터 장치간의 데이터를 전송하는 전송용 버퍼의 빈 상태(Empty Flag)레벨에 따라 적응적으로 데이터전송률을 조정하기 위한 것이다. 이를 위하여 본 장치는 비트스트림 데이터를 공급하는 소스원;소스원에서 제공되는 비트스트림데이터를 원래의 상태로 복원하기 위한 디코더;다단의 선입선출버퍼를 직렬로 접속하여 소스원에서 출력되는 비트스트림 데이터를 일정한 속도로 디코더로 전송하기 위한 버퍼;다단의 선입선출 버퍼중 빈상태가 되는 선입선출버퍼의 갯수에 따라 버퍼의 빈상테레벨을 검출하여 소스원에서의 비트스트림 데이터의 공급제이가 이루어지도록 하기 위한 인더럽트 요구신호 및 검출된 빈상태레벨값을 소스원으로 발생하는 빈상태레벨검출기를 포함하도록 구성된다.The present bitstream data transmission apparatus is adapted to adaptively adjust the data rate according to the empty flag level of a transmission buffer for transmitting data between a video or audio decoder and a computer device. To this end, the apparatus includes a source source for supplying bitstream data; a decoder for restoring the bitstream data provided from the source source to its original state; the bitstream data output from the source source by connecting multiple first-in first-out buffers in series. A buffer for transmitting a bit stream data from a source source by detecting the empty phase level of the buffer according to the number of first-in first-out buffers that become empty among the first-in first-out buffers. And an empty state level detector for generating an interrupt request signal and a detected empty level value as a source.

Description

비트스트림 데이터 전송장치Bitstream Data Transmission Device

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

제2도는 본 발명에 따른 비트스트림 데이터 전송장치를 구비한 시스템도.2 is a system diagram having a bitstream data transmission apparatus according to the present invention.

제3도는 제2도에 도시된 빈상태(Empty Flag)레벨 검출기에 대한 상세한 회로도.3 is a detailed circuit diagram of the empty flag level detector shown in FIG.

Claims (7)

비트스트림 데이터를 공급하는 소스원;상기 소스원에서 제공되는 상기 비트스트림데이터를 원래의 상태로 복원하기 위한 디코더;다단의 선입선출버퍼를 직렬로 접속하여 상기 소스원에서 출력되는 상기 비트스트림 데이터를 일정한 속도로 상기 디코더로 전송하기 위한 버퍼;상기 다단의 선입선출버퍼중 빈상태가 되는 선입선출버퍼의 갯수에 따라 상기 버퍼의 빈상태레벨을 검출하여 상기 소스원에서의 상기 비트스트림 데이터의 공급제어가 이루어지도록 하기 위한 인터립트 요구신호 및 검출된 빈상태레벨검출기를 포함함을 특징으로 하는 비트스트림 데이터 전송장치.A source source for supplying bitstream data; a decoder for restoring the bitstream data provided from the source source to an original state; a plurality of first-in, first-out buffers connected in series to receive the bitstream data output from the source source A buffer for transmitting to the decoder at a constant speed; controlling the supply of the bitstream data from the source source by detecting a free state level of the buffer according to the number of first-in first-out buffers that become empty among the first-in first-out buffers of the plurality of stages; And an intercept request signal and a detected free state level detector to make the operation. 제1항에 있어서, 상기 빈상태 레벨 검출기는 상기 인터럼트 요구신호를 검출된 상기 빈상테레벨에 따라 우선 순위를 달리하여 발생함을 특징으로 하는 비트스트림 데이터 전송장치.2. The bitstream data transmission apparatus of claim 1, wherein the empty level detector is generated by varying the priority of the interrupt request signal according to the detected empty level. 제2항에 있어서, 상기 소스원은 상기 빈상태 레벨검출기에서 상기 인터럽트 요구 신호가 인가되면, 현재 수행중인 기능과 우선순위를 비교하고 우선 순위가 우위인 기능을 수행함을 특징으로 하는 비트스트림 데이터 전송장치.The bitstream data transmission of claim 2, wherein when the interrupt request signal is applied from the free state level detector, the source source compares a priority with a function currently being performed and performs a function having a higher priority. Device. 제3항에 있어서, 상기 소스원은 상기 빈상태 레벨검출기로 부터 인가된 인터럽트 요구신호에 따른 기능을 수행하게 될 때, 상기 검출된 빈상태 레벨값과 동일한 수의 선입선출버퍼가 채워질 수 있도록 전송되는 데이터량을 조절함을 특징으로 하는 비트스트림 데이터전송장치.4. The method of claim 3, wherein when the source source performs a function according to an interrupt request signal applied from the free state level detector, the source source transmits the same number of first-in first-out buffers as the detected free state level value. Bitstream data transmission device, characterized in that for adjusting the amount of data. 제3항에 있어서, 상기 소스원은 초기에 상기 버퍼의 상기 선입선출버퍼가 모두 채워진 상태인 전상태가 될 때까지 상기 버퍼로 데이터를 전송함을 특징으로 하는 비트스트림 데이터전송장치.4. The bitstream data transmission apparatus of claim 3, wherein the source source initially transmits data to the buffer until the first source of the buffer is in a full state where all of the first-in, first-out buffers are filled. 제4항 또는 제5항에 있어서, 상기 소스원은 컴퓨터장치임을 특징으로 하는 비트스트림 데이터 전송장치.6. The bitstream data transmission device according to claim 4 or 5, wherein the source source is a computer device. 제1항에 있어서, 상기 빈상태 레벨검출기는 버퍼내의 선입선출버퍼가 모두 채워진 경우의 레벨부터 선입선출버퍼가 모두 빈상태의 경우까지 하나의 선입선출버퍼가 빌 때마다 상기 빈상태의 레벨값을 검출하는 복수의 빈상태 레벨 검출수단;상기 빈상태 레벨이 검출되면 검출된 레벨값을 상기 소스원이 인식할 수 있도록 엔코드하는 엔코더;와 상기 검출될 빈상태 레벨을 적어도 2개 이상의 그룹으로 나누어 상기 인터럽트 요구신호를 발생하는 인터럽트 요구신호발생수단을 포함함을 특징으로 하는 비트스트림 데이터전송장치.The empty level detector of claim 1, wherein the empty level detector sets the empty level value whenever the first-in-first-out buffer is empty from the level when all the first-in-first-out buffers in the buffer are filled to the first-in-first-out buffer is empty. A plurality of bin level detection means for detecting; an encoder for encoding the detected level value to be recognized by the source source when the bin level is detected; and dividing the detected bin level into at least two groups And an interrupt request signal generating means for generating said interrupt request signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940000766A 1994-01-18 1994-01-18 Bitstream Data Transmission Device KR0174910B1 (en)

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KR950024054A true KR950024054A (en) 1995-08-21
KR0174910B1 KR0174910B1 (en) 1999-04-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388492B1 (en) * 2000-12-22 2003-06-25 한국전자통신연구원 Method for dynamic frame selection scheme on the video on demand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388492B1 (en) * 2000-12-22 2003-06-25 한국전자통신연구원 Method for dynamic frame selection scheme on the video on demand

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