METHOD AND DEVICE FOR TRANSMITTING MEDIA DATA

    公开(公告)号:JP2001197120A

    公开(公告)日:2001-07-19

    申请号:JP2000215937

    申请日:2000-07-17

    Applicant: APPLE COMPUTER

    Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for processing media data transmitted inside a data communication medium. SOLUTION: It is shown how to transmit the sequence of media data with the set of data related to time according to a certain transmitting protocol. This set of data contains the sequence of data, which are related to time, related to the sequence of these media data related to time. A digital processing system utilizes this set of data and can transmit the sequence of media data related to time(by that transmitting protocol and a packet generated according to the set of these data, for example).

    METHOD AND APPARATUS FOR VARIABLE ACCURACY INTER-PICTURE TIMING SPECIFICATION FOR DIGITAL VIDEO ENCODING
    6.
    发明申请
    METHOD AND APPARATUS FOR VARIABLE ACCURACY INTER-PICTURE TIMING SPECIFICATION FOR DIGITAL VIDEO ENCODING 审中-公开
    用于数字视频编码的可变精度互联时序规范的方法和装置

    公开(公告)号:WO2004008654A8

    公开(公告)日:2004-06-24

    申请号:PCT/US0321714

    申请日:2003-07-11

    Applicant: APPLE COMPUTER

    Abstract: A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specificallly the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture (105) and a nearby video picture is determined. The display time difference is then encoded (180) into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.

    Abstract translation: 公开了一种用于数字视频编码的可变精度画面间时序规范的方法和装置。 具体地,本发明公开了一种允许以非常有效的方式编码附近视频图像的相对定时的系统。 在一个实施例中,确定当前视频图像(105)和附近视频图像之间的显示时间差。 显示时间差然后被编码(180)成视频图像的数字表示。 在优选实施例中,附近的视频图像是最近发送的存储图像。 对于编码效率,可以使用可变长度编码系统或算术编码对显示时间差进行编码。 在替代实施例中,显示时间差被编码为2的幂,以减少发送的比特数。

    Method and apparatus for media data transmission

    公开(公告)号:AU2006269848A1

    公开(公告)日:2007-01-25

    申请号:AU2006269848

    申请日:2006-07-19

    Applicant: APPLE COMPUTER

    Abstract: A method for processing scalable content stored in a first set of data which contains samples for presenting a presentation at a plurality of scales of scalable content, the method comprising: receiving one of a plurality of extractor track sets with the one of the plurality of extractor track sets including a second set of data derived from the first set, wherein each of the plurality of extractor track sets corresponds to one of a plurality of operating points within the scalable content, the second set containing references to the first set for use in identifying first operating point data for a first operating point from the first set, the first operating point data being a subset of the first set of data; and accessing, with a digital processing system, the references to transmit, store or present data, referenced by the second set, from the first set without examining each piece of the first set of data and without examining all of the plurality of extractor track sets.

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