International Business Machines Corporation

Jane K Doong

Steven Victor Kauffman

Lara Marie Lewis

William Russell Belknap

Rainer Richter

Chiunn-shyong Yeh

John Ying

William J Baer

Ronald Elliott Parrish

Jung-hsin Eva Hu

A method, system and program product are described for specifying a selection of content segments stored in different formats. The invention involves receiving specification of a plurality of portions of first content stored in a first format, the specification identifying beginning and ending frames for each portion, and building a list comprising a starting mark and ending mark for each selected portion of first content, the list for use in accessing corresponding portions of the same content stored as second content in a second format.

Method and system for specifying a selection of content segments stored in different formats

Systems, methods, and computer products that facilitate transmission of information used for fast and responsive video and audio playback at non-standard, trick mode speeds. An embodiment of the present invention uses low resolution, compressed, and independent frames derived from the encoded digital video or audio information to facilitate the operation of user-requested VTR-like speed change functions associated with digital video and digital audio frames. The present invention greatly simplifies locating specific frames in a video or audio presentation for purposes such as fast forward and fast reverse scanning that is typically used in digital editing.

Systems and computer program products to facilitate efficient transmission and playback of digital information

Methods to facilitate efficient transmission and playback of digital information

An object management system for storing persistent object oriented objects, includes an object vault, a structural type manager and a digital library. The object vault is connected to the structural type manager and the digital library is connected to the structural type manager. An application program is connected to the object vault. Objects to be stored are represented as a Key Value Dictionary (KVD) in which attributes, or metadata, relating to the objects are stored as key-value pairs. Objects are categorized as having different structural types in which certain attributes for objects having the same structural type are cataloged to facilitate indexing and searching for the objects. The structural type manager maintains a mapping between structural types and a subset of keys for the structural types as well as corresponding database references for cataloging the object attributes. Also disclosed is a method of storing objects in the digital library where the corresponding database references for the subset of keys are retrieved from the structural type manager. The values corresponding to the subset of keys are retrieved from the Key Value Dictionary and stored in the library catalog. The Key Value Dictionary is serialized and stored in the digital library, and a signature is returned. The object stored in the digital library is retrieved by locating the objected based on the cataloged key values. Preferably the persistent objects are Java programming language objects.

Object management system for digital libraries

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San Jose, CA, United States of America

Jane K Doong