Abstract: A data stream inputted to the inventive system from the outside is supplied to a PID (packet ID) extracting circuit 1, in which a PID is detected from a transport stream TS regardless of whether the transport stream TS is a full transport stream TS or a partial transport stream TS. The PID extracting circuit 1 transmits the thus extracted PID and data stream to a TS replacing/deleting circuit 2. The TS replacing/deleting circuit 2 has n 188-byte buffers and is able to set replaced TS packets to the buffers. A control circuit 3 such as a CPU (central processing unit) designates m PIDs relative to the respective buffers and designates the respective PIDs as the PID of the packet to be deleted or the PID of the packet to be replaced. Then, the TS replacing/deleting circuit 2 compares the PID received from the PID extracting circuit 1 with the PID designated by the control circuit 3.

Abstract: A method and apparatus for the handling of a recorded data stream and associated linear application is disclosed. Linear real-time playback of the data stream and running of the linear application is commenced from a starting point thereof. On entering a non real-time playback phase, select frames from the data stream are mapped using a mapping scheme to create an interactive trick play stream. Events from the linear application are mapped into the interactive trick play stream using the disclosed mapping scheme.

Abstract: A mobile terrestrial digital broadcast receiver is disclosed. With the arrival at a predetermined time before the starting time of a recording reserved program specified by arbitrary recording reservation information (hereinafter referred to as the intended recording reservation information), the broadcast is started to be received in preparation for the recording, and it is determined whether the area information contained in the received broadcast wave is identical with the area information in the intended recording reservation information. In the case where the area information contained in the received broadcast wave is different from the area information in the intended recording reservation information, a channel list is prepared, while at the same time determining whether a stream ID in the intended recording reservation information exists in the channel list prepared.

Abstract: A method of recording audio and video content on a storage medium includes performing recording operations to record audio and video content on the storage medium; classifying the recording operations into a plurality of priority levels; and reserving space on the storage medium for recording operations being classified at a first priority level.

Abstract: A sequence of intensity measures is determined corresponding to each of a sequence of video frames. Such can be used for selection of videos according to user preferences and for providing highlights from a video sequence. Low level video characteristics are used which may be related to arousal and valence affects conveyed to a viewer while watching the video recording.

Abstract: An edit device performs editing based on image data L_IM, generates an edit decision list L_EDL indicating that content and transmits this to a video recording system. In the edit decision list L_EDL, as an instance number of UMID, “FF FF FF” is stored. The video recording system rewrites the instance number IN_N in UMID of the edit decision list L_EDL from “FF FF FF” to “00 00 00” to generate an edit decision list H_EDL.

Abstract: The mechanism of a sub-picture processing method for displaying multiple subtitles in a video/audio playing apparatus is provided. The purpose for displaying multiple subtitles in different languages simultaneously can be achieved under a user's control. Due to the unique control procedures and the concept of time division multiplexing, the present invention only employs a single sub-picture decoding unit and a single image mixer to display multiple subtitles in different languages at any preferred positions of the main picture.

Abstract: A hierarchical memory scheme capable of improving a hit rate for the segment containing the random access point rather than improving the overall hit rate of the cache, and a data playback scheme capable of automatically detecting positions that are potentially used as playback start indexes by the user and attaching indexes, are disclosed. The hierarchical storage device stores random access point segment information from which a possibility for each segment to contain a point that can potentially be random accessed in future can be estimated, and controls a selection of the selected segments to be stored in the cache storage device according to the random access point segment information.

Abstract: Stream data has a recording data structure formed in units of stream blocks (or stream object units SOBU) which are segmented to have a predetermined data size. Data are recorded (or encoded) and partially erased (or temporarily erased) in units of the stream blocks (SOBUs).

Abstract: A recording apparatus performs processing for recording first data on a recording medium. The recording apparatus includes a baseband-signal output controller controlling an output of a baseband signal. A first buffer buffers the baseband signal to be output under the control of the baseband-signal output controller. A codec performs codec processing based on a system clock, which is different from the baseband signal. A recorder records the first data on the recording medium.

Abstract: An information signal recording apparatus for compression-encoding video data comprising a search picture generating block AND a color signal compensating block. The search picture generating block decreases the bit length of a component of a luminance signal and the bit length of a component of a color signal of an intra-coded data of the compression-encoded video data to generate search picture data, and the color signal level compensating block compensates the signal level of part or all the color signal for one frame so that the signal level increases.

Abstract: A method of creating a playback control file for a recording medium and a method and apparatus for reproducing data using the playback control file are disclosed. The method of creating a playback control file for a recording medium includes creating a virtual stream file designating a group of stream files recorded on the recording medium, and creating a PlayList being able to reproduce the group of stream files, individually or in combination, the PlayList including a PlayItem directly designating the virtual stream file and identification information designating at least one of elementary streams included in the group of stream files.

Abstract: The invention relates to a method and an apparatus for defining entry points for a data stream, in particular a stream of audiovisual information. Entry points in the stream are defined at a predetermined interval. This may be a time interval, a byte interval or any other interval. It is an object of the invention to provide an entry point table having a limited size. This object is achieved by increasing the interval between entry points if the table exceeds a predetermined size. This size may be defined in bytes, in the number of entry points or even in the number of sub-tables. After redefinition of the interval between entry points, entry points are redefined. The invention also relates to an apparatus for defining the entry points and to a record carrier with a data stream incorporating entry points defined by the method according to the invention.

Abstract: Automatic video recording system and method are provided which make it possible that programs to be automatically recorded are selected according to objective criteria from the programs that are scheduled to broadcast in the future. In configuration, an information generator of a program information providing server ranks the broadcast programs on the basis of program rating information, and thus generates program rank prediction information. Terminal units download the program rank prediction information and an electronic program schedule. A recorded-program/digest generator makes broadcast programs of a certain rank or above be automatically recorded by referring to the program rank prediction information.

Abstract: For a large capacity recording medium, a user interface having high flexibility and enriched representation is accomplished. A flag that represents whether a play item has a multiple angle structure of which the play item is reproduced with a plurality of angles is described. In addition, a flag that represents whether the beginning of each decode unit is an angle switchable point is described. In a seamless multiple angle structure, the current angle can be switched without need to increase the number of interleave units. In a nonseamless multiple angle structure, with the flag, in a predetermined region on the rear end side of each angle, the current angle is prohibited from being switched. Thus, when a play item exits from the multiple angle, discontinuity in the reproduction can be prevented. In addition, with a flag that represents whether a sub play item should be reproduced not in synchronization with a main path, the sub play item of only audio data can be used as a BGM.

Abstract: A data processor according to the present invention includes: a receiving section to receive a data stream including data of first primary video to be presented by switching pictures at a first vertical scanning frequency and data of first auxiliary video to be presented synchronously with the first primary video; and a converting section for converting the first primary video data and the first auxiliary video data into data of synthetic video to be presented by switching the pictures at a second vertical scanning frequency, which is different from the first vertical scanning frequency. The data stream includes timing information defining respective times to present the first primary video and the first auxiliary video.

Abstract: A method and a text subtitle decoder for decoding a text subtitle stream recorded on a recording medium are disclosed. A subtitle loading buffer initially loads a text subtitle stream including a dialog style segment defining a group of region styles and a dialog presentation segment having dialog presentation information and dialog text data for a dialog having at least one region. A text subtitle processor parses the dialog presentation segment into composition information, rendering information, and the dialog text data for each region. Next, a text renderer renders the text strings into a bitmap object for each region according to the rendering information, and the rendered bitmap object is composed in a graphics plane.

Abstract: Provided are a data editing apparatus, a data editing method and a data recording/reproducing apparatus which can easily reedit edited data recorded on a nonlinear-accessible recording medium. When a start point (IN point) or an end point (OUT point) of partial data of edited data to be reedited is specified, a controller controls a recorder and reproducer and HDDs so as to reproduce material data containing the partial data to be reedited in synchronization with operation for changing the specified start or end point of the partial data. Moreover, when operation for determining a new start or end point is performed in a state in which the material data is reproduced in synchronization with changing operation, the controller reedits the edited data in accordance with determining operation. During reediting, the controller reedits data on the basis of a temporary file. The controller reedits data while reproducing the same reproducing state as the reproducing state after reediting.

Abstract: The object of the present invention is to provide a high-speed signal search method, device, and a recording medium for the same that can obtain detection results equivalent to precisely moving a window over the entire region of the input signal even when there is not precise movement of a window over the entire signal.

Abstract: The present invention provides a moving picture recording apparatus and method of recording moving picture signals as compression coded moving picture data together with reference moving picture data that references the moving picture data in a storage medium. Time data for designating a representative image of the moving picture data is designated, the representative image (poster frame) is read out and decoded, and a thumbnail image of the moving picture data is generated based on the representative image. The thumbnail image is encoded and written to a thumbnail file, and the representative image and corresponding thumbnail image recorded in the thumbnail file are correlated by a management file.