Computer system and process for capture editing and playback of motion video compressed using interframe and intraframe techniques
April 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesVideo/audio transmission systsem and method Media storage and retrieval system Efficient coding/decoding apparatuses for processing digital image signal Moving picture scene detection system Decompression system for compressed video data for providing uninterrupted decompressed video data output Image editing device with special effects using a recording medium in which two-channel reproduction and single-channel recording are simultaneously possible MPEG editor method and apparatus Video editing system with auto channel allocation Media editing system with adjustable source material compression Programmable audio-video synchronization method and apparatus for multimedia systems InventorsAssigneeApplicationNo. 832987 filed on 04/04/1997US Classes:375/240.01, Television or motion video signal386/4, Editing386/111Intraframe or interframeExaminersPrimary: Kelley, ChrisAssistant: Philippe, Gims Attorney, Agent or FirmForeign Patent References
International ClassH04B 001/66AbstractRandom access to arbitrary fields of a video segment compressed using both interframe and intraframe techniques is enhanced by adding state information to the bitstream prior to each intraframe compressed image to allow each intraframe compressed image to be randomly accessed by generating a field index that maps each temporal field to the offset in the compressed bitstream of the data used to decode the field, and by playing back segments using two or more alternatingly used decoders. The cut density may be improved by eliminating from the bitstream applied to each decoder any data corresponding to bidirectionally compressed images that would otherwise be used by the decoder to generate fields prior to the desired field.Other References
Field of SearchMotion vector generationMotion dependent key signal generation or scene change detection Special effects Editing Line, field, or frame skipping Compressing in recording or decompressing in reproducing Line, field, or frame skipping Intraframe or interframe Fast reproducing Editing Having auxiliary dynamic memory means Interframe coding (e.g., difference or motion detection) EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING) Image storage or retrieval BANDWIDTH REDUCTION OR EXPANSION Television or motion video signal | |
