摘要:
This invention provides a method of managing the navigation data for a rewritable recording medium which are referred to for control of recording, editing, and reproduction. It enables to access to each information table in the navigation data directly by referring to the start address, which is kept in the first information table in the navigation data. When data are recorded to the rewritable recording medium, the management data which are relevant to the data to be recorded are created and written to the relevant information tables, which are accessed directly based on the start addresses. When data on the recording medium are reproduced, the information tables which contain management data required for reproduction of the requested data are located directly by the start addresses. Then, the data are read out from the rewritable recording medium and reproduced in reference to the management data. Compared to the prior navigation data structure, where the information tables are accessed through calculation of the end addresses, the present invention allows to reduce the access time to each information table, contributing to the real-time operation for writing and reproduction.
摘要:
A method and apparatus for automatically creating a play list of a received digital broadcast stream to be recorded on a recording medium. Specific positions of the received broadcast stream in which the packet identification code contained in the received stream changes are detected and recorded as entry points of programs. A play list can be automatically created based upon the detected entry points, thereby enabling a user to easily locating start positions of recorded programs.
摘要:
The present invention relates to a method of grouping still pictures recorded on a recording medium for the purpose of efficient management. The present method records still pictures onto a recording medium, groups the recorded still pictures based on their attributes and attributes of recorded audio data associated with respective still pictures, creates management information about each still-picture group, and writes the group management information onto the recording medium. Owing to the recorded group management information, a user can easily and rapidly find many still pictures on a recording medium that have been obtained in the same photographing condition.
摘要:
An audio recording apparatus provides a method of managing the video and audio navigation data for a rewritable recording medium, such as DVDs. The recording medium contains video and audio files in either originally recorded or user defined sequence. During recording, the apparatus prepares and updates start addresses for each navigation table containing such data as video and audio files. When reproducing information from the recording medium, the information tables which contain management data required for reproduction of the requested data are located directly by the start addresses. The data are read from the rewritable recording medium and reproduced in reference to the management data.
摘要:
This invention provides a method of creating and recording presentation order management information for a rewritable recording medium, which enables effective control of the amount of the presentation order management information needed when a user edits preferred play lists of recorded data. In the present invention, each time a new play list is made by a user, a user-defined program chain is created, wherein presentation order information units for defining presentation order of user-chosen data are contained. The maximum number of user-defined program chains and the total number of presentation order information units are limited. When editing of a new play list is requested, the number of user-defined program chains created so far and the total number of presentation order information units contained in all the user-defined program chains are checked. The method allows editing of data depending upon the check result, thereby enabling effective control of the size for presentation order management data in the limited maximum size for navigation data.
摘要:
This invention provides a method for creating, updating, and recording information for seamless presentation of moving picture data in a rewritable recording medium. When recording moving picture data on a rewritable recording medium, seamless presentation information, a part of navigation data, is recorded along with the picture data for seamless presentation of the recorded picture data. The method for creating and recording seamless presentation information of the present invention can effectively reduce the amount of created seamless presentation information by omitting some fields of the seamless presentation information when they are unnecessary. If some video objects of recorded picture data are erased, navigation data related to the removed video objects should be erased and seamless presentation information should also needs proper modification. The method for updating and recording seamless presentation information of the present invention enables effective management of seamless presentation information by updating seamless presentation information related to the video object following erased video objects.
摘要:
The image processing apparatus includes an image receiver configured to receive video. The apparatus also include a first channel buffer configured to store first bit rate video data and a second channel buffer configured to y store video data when a network transmission speed corresponds to a preset condition. The apparatus further includes a decoder configured to receive and decode the video data stored in the first or second channel buffer. In addition, the apparatus includes a controller configured to transmit the video data stored in the first channel buffer to the decoder while the data is stored in the second channel buffer, and configured to transmit the video data stored in the second channel buffer to the decoder when a predetermined amount of video data is stored in the second channel buffer.
摘要:
This invention provides a method of managing the navigation data for a rewritable recording medium which are referred to for control of recording, editing, and reproduction. It enables to access to each information table in the navigation data directly by referring to the start address, which is kept in the first information table in the navigation data. When data are recorded to the rewritable recording medium, the management data which are relevant to the data to be recorded are created and written to the relevant information tables, which are accessed directly based on the start addresses. When data on the recording medium are reproduced, the information tables which contain management data required for reproduction of the requested data are located directly by the start addresses. Then, the data are read out from the rewritable recording medium and reproduced in reference to the management data. Compared to the prior navigation data structure, where the information tables are accessed through calculation of the end addresses, the present invention allows to reduce the access time to each information table, contributing to the real-time operation for writing and reproduction.
摘要:
This invention provides a method for creating, updating, and recording information for seamless presentation of moving picture data in a rewritable recording medium. When recording moving picture data on a rewritable recording medium, seamless presentation information, a part of navigation data, is recorded along with the picture data for seamless presentation of the recorded picture data. The method for creating and recording seamless presentation information of the present invention can effectively reduce the amount of created seamless presentation information by omitting some fields of the seamless presentation information when they are unnecessary. If some video objects of recorded picture data are erased, navigation data related to the removed video objects should be erased and seamless presentation information should also needs proper modification. The method for updating and recording seamless presentation information of the present invention enables effective management of seamless presentation information by updating seamless presentation information related to the video object following erased video objects.
摘要:
This invention provides a method of managing the navigation data for a rewritable recording medium which are referred to for control of recording, editing, and reproduction. It enables to access to each information table in the navigation data directly by referring to the start address, which is kept in the first information table in the navigation data. When data are recorded to the rewritable recording medium, the management data which are relevant to the data to be recorded are created and written to the relevant information tables, which are accessed directly based on the start addresses. When data on the recording medium are reproduced, the information tables which contain management data required for reproduction of the requested data are located directly by the start addresses. Then, the data are read out from the rewritable recording medium and reproduced in reference to the management data. Compared to the prior navigation data structure, where the information tables are accessed through calculation of the end addresses, the present invention allows to reduce the access time to each information table, contributing to the real-time operation for writing and reproduction.