公开(公告)号：US20040167916A1

公开(公告)日：2004-08-26

申请号：US10785905

申请日：2004-02-24

Applicant: AT&T Corp.

Inventor： Andrea Basso ,  Alexandros Eleftheriadis ,  Hari Kalva ,  Atul Puri ,  Robert Lewis Schmidt

IPC: G06F017/00

CPC classification number: H04L65/607 ,  G06F17/30017 ,  G11B20/1217 ,  G11B27/105 ,  G11B27/3027 ,  G11B2220/213 ,  G11B2220/2545 ,  H04L29/06027 ,  H04N21/23412 ,  H04N21/44012 ,  Y10S707/99932 ,  Y10S707/99942 ,  Y10S707/99943

Abstract: File formats systems and methods are disclosed that provide a framework that integrates concepts, such as objects based audio-visual representation, meta-data and object oriented programming, to achieve a flexible and generic representation of the audiovisual information and the associated methods to operate on the audiovisual information. A system and method are disclosed for storing data processed from presentation data. The data is stored according to a method comprising coding input presentation data by identifying objects from within the presentation data, coding each object individually and organizing the coded data into access layer data units. The access layer data units are stored throughout a plurality of segments, each segment comprising a segment table in a header portion thereof and those access layer data units that are members of the respective segment, there being one entry in the segment table for each access layer data unit therein. A plurality of extended segments are also stored, each of the extended segments further comprising one or more of the access layer data units that include protocol specific data, the extended segments each represented by a extended segment header. The data of an accessible object is also stored, including an accessible object header and identifiers of the plurality of extended segments, each of the extended segments being a member of the same object.

Abstract translation: 公开了文件格式的系统和方法，其提供集成诸如基于对象的视听表示，元数据和面向对象程序之类的概念的框架，以实现视听信息的灵活和通用表示以及相关的操作方法 视听信息。 公开了一种用于存储从演示数据处理的数据的系统和方法。 根据包括通过从呈现数据内识别对象来编码输入呈现数据的方法来存储数据，分别编码每个对象并将编码数据组织成接入层数据单元。 接入层数据单元被存储在多个段中，每个段包括在其头部分中的段表，作为各个段的成员的那些接入层数据单元，在每个接入层的段表中有一个条目 数据单元。 还存储多个扩展段，每个扩展段还包括包括协议特定数据的接入层数据单元中的一个或多个，扩展段由扩展段标题表示。 还存储可访问对象的数据，包括可访问对象标题和多个扩展段的标识符，每个扩展段是同一对象的成员。

公开(公告)号：US20010051950A1

公开(公告)日：2001-12-13

申请号：US09907683

申请日：2001-07-19

Applicant: AT&T Corp.

Inventor： Andrea Basso ,  Alexandros Eleftheriadis ,  Hari Kalva ,  Atul Puri ,  Robert Lewis Schmidt

IPC: G06F017/30

CPC classification number: H04N19/20 ,  G11B27/034 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  H04N21/234318 ,  H04N21/2381 ,  H04N21/8352 ,  H04N21/8455 ,  H04N21/85406

Abstract: Audiovisual data storage is enhanced using an expanded physical object table utilizing an ordered list of unique identifiers for a particular object for every object instance of an object contained in segments of a data file. Two object instances of the same object in the same segment have different object identifiers. Therefore, different instances of the same object use different identification and the different object instances may be differentiated from one another for access, editing and transmission. The necessary memory required for randomly accessing data contained in files using the expanded physical object table may be reduced by distributing necessary information within a header of a file to simplify the structure of the physical object table. In this way, a given object may be randomly accessed by means of an improved physical object table/segment object table mechanism.