KR19980020634A - 화상전화기의 오디오코덱 비트레이트 자동조절장치 - Google Patents
화상전화기의 오디오코덱 비트레이트 자동조절장치 Download PDFInfo
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- KR19980020634A KR19980020634A KR1019960039153A KR19960039153A KR19980020634A KR 19980020634 A KR19980020634 A KR 19980020634A KR 1019960039153 A KR1019960039153 A KR 1019960039153A KR 19960039153 A KR19960039153 A KR 19960039153A KR 19980020634 A KR19980020634 A KR 19980020634A
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- South Korea
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- video
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- bit rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
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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
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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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (5)
- 화상전화기에 있어서,입력되는 비디오데이타를 전송가능한 형태로 압축 부호화하기 위한 비디오코덱;상기 비디오코덱으로부터 압축 부호화된 비디오데이타를 입력받아 프레임단위로 그 부호량을 체크하여 부호량이 많은 경우 오디오데이타의 비트레이트를 낮추고, 부호량이 적을 경우 오디오데이타의 비트레이트를 높일 수 있도록 조절하는 부호량체크부;복수개의 비트레이트중 상기 부호량체크부에 의해 비트레이트가 자동 조절되고, 조절된 비트레이트에 맞추어 입력되는 오디오데이타를 전송가능한 형태로 압축 부호화하는 오디오코덱;각 구성의 상호 접속을 제어하는 제어부;상기 제어부의 제어신호와 상기 압축 부호화된 비디오데이타 및 오디오데이타를 다중화하는 다중/분리부; 및상기 다중/분리부에서 다중화된 데이타를 접속된 상대방에게 전송하는 모뎀을 포함하는 화상전화기의 오디오코덱 비트레이트 자동조절장치.
- 제 1항에 있어서, 상기 화상전화기는 일반 전화망을 이용하는 H.324권고의 시스템으로 구현됨을 특징으로 하는 화상전화기의 오디오코덱 비트레이트 자동조절장치.
- 제 1항에 있어서, 상기 오디오코덱은 5.3kbps와 6.3kbps의 복수개 비트레이트를 선택적으로 사용할 수 있는 것을 특징으로 하는 화상전화기의 오디오코덱 비트레이트 자동조절장치.
- 제 3항에 있어서, 상기 부호량체크부는 상기 비디오코덱에서 부호화된 프레임단위의 비디오데이타량과 기정의된 디폴트값을 비교하여 그 비교결과에 따라 상기 오디오코덱의 복수개 비트레이트중 하나를 선택하는 것을 특징으로 하는 화상전화기의 오디오코덱 비트레이트 자동조절장치.
- 제 4항에 있어서, 상기 부호량체크부는 프레임단위의 비디오데이타량이 기정의된 디폴트값보다 작으면 상기 오디오코덱에서 오디오데이타량을 많이 발생하도록 비트레이트를 6.3kbps로 조절하며, 프레임단위의 비디오데이타량이 기정의된 디폴트값보다 크면 상기 오디오코덱에서 오디오데이타량을 적게 발생하도록 비트레이트를 5.3kbps로 조절하는 것을 특징으로 하는 화상전화기의 오디오코덱 비트레이트 자동조절장치.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960039153A KR100203271B1 (ko) | 1996-09-10 | 1996-09-10 | 화상전화기의 오디오코덱 비트레이트 자동조절장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960039153A KR100203271B1 (ko) | 1996-09-10 | 1996-09-10 | 화상전화기의 오디오코덱 비트레이트 자동조절장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980020634A true KR19980020634A (ko) | 1998-06-25 |
| KR100203271B1 KR100203271B1 (ko) | 1999-06-15 |
Family
ID=19473265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960039153A Expired - Fee Related KR100203271B1 (ko) | 1996-09-10 | 1996-09-10 | 화상전화기의 오디오코덱 비트레이트 자동조절장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100203271B1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450808A (zh) * | 2021-06-28 | 2021-09-28 | 杭州朗和科技有限公司 | 音频码率确定方法、装置、存储介质及电子设备 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010107298A (ko) * | 2000-05-26 | 2001-12-07 | 이활건 | 인터넷을 사용한 화상 통신방법 |
-
1996
- 1996-09-10 KR KR1019960039153A patent/KR100203271B1/ko not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450808A (zh) * | 2021-06-28 | 2021-09-28 | 杭州朗和科技有限公司 | 音频码率确定方法、装置、存储介质及电子设备 |
| CN113450808B (zh) * | 2021-06-28 | 2024-03-15 | 杭州网易智企科技有限公司 | 音频码率确定方法、装置、存储介质及电子设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100203271B1 (ko) | 1999-06-15 |
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