Abstract: A method for processing digital video data intended for normal mode display to obtain corresponding digital video data for trick-mode display includes modifying the normal mode digital video data to achieve a substantially uniform delivery rate to a video client. This results in smoother trick-mode playback. The modified normal mode digital video data is saved as a trick-mode file. When trick-mode playback is requested, a video-server retrieves data from the trick-mode file.

Abstract: A digital media player. The digital media player includes storage to store media content and a user interface to provide information to a user. The information includes at least one task associated with the media content. The media player also includes a control to allow the user to select at least one task and a processor to perform a task selected by the user.

Abstract: The apparatus comprises a first medium, a first recording/reproducing section which can record information on or can reproduce information from the first medium, a second recording/reproducing section which can record information on or can reproduce information from a second medium, and a display signal output section. The apparatus is configured to compose input information, being subjected to recording of the first recording/reproducing processing section, with a reproduction signal, being reproduced by the first recording/reproducing processing section. A result of composition is then output to the display signal output section.

Abstract: A method for managing recording and reproduction of a multi-dubbed audio stream. This method includes the steps of producing virtual play lists, the number of which corresponds to the number of dubbed audio streams desired by a user in association with the clip-unit main A/V stream, for reading and reproduction of the dubbed audio streams, and recording a common play item, for reading and reproduction of the clip-unit main A/V stream, in the virtual play lists, while recording distinct sub play items, for reading and reproduction of the dubbed audio streams associated therewith, in the virtual play lists, respectively. Management information for search and management of play lists for multiple dubbed audio streams is also recorded in the file structure of a rewritable storage medium such as BD-RE (Blu-Ray Disc Rewritable).

Abstract: The CGMS unacceptable recorder accepts transmission frames only when the copyright protection information in a transmission header transmitted to the IEEE1394 serial bus indicates copy free. The CGMS acceptable recorder accepts transmission frames when the copyright protection information in the transmission header indicates copy free. When the copyright protection information in the transmission header indicates compliance with the copyright information contained in the content of the transmission frame, the copyright information in the content is fetched based on the signal format type information of the transmission header. A copy management information changeable apparatus such as a computer cannot accept data other than copy free signals from the digital interface.

Abstract: The erasion level appending range of a file is instructed. According to this instruction, the erasion level is set. When this setting range does not agree with the cell unit of the current cell, the current cell is divided to set a sequence of divided cells. Playback management information of each of the divided cells and current cell is re-created, and erasion level information is appended to playback management information of the divided cell that belongs to the appending range.

Abstract: The erasion level appending range of a file is instructed. According to this instruction, the erasion level is set. When this setting range does not agree with the cell unit of the current cell, the current cell is divided to set a sequence of divided cells. Playback management information of each of the divided cells and current cell is re-created, and erasion level information is appended to playback management information of the divided cell that belongs to the appending range.

Abstract: An image recording and replaying apparatus in which a repeat recording control unit receives specification of a repeat recording time period, and instructs an image data recording unit to record image data; the image data recording unit records the image data into files having capacity corresponding to a predetermined time period; a replay control mode setting unit, under control of the repeat recording control unit, sets an all-replays-available mode for files recorded within the specified repeat recording time period back from the current time, and sets a replay restriction mode for a file that was recorded in the predetermined time period immediately before the repeat recording time period; and a replay control mode judging unit outputs a warning that special replays other than fast forward are not available if it judges that a currently replayed file is set to the replay restriction mode.

Abstract: The erasion level appending range of a file is instructed. According to this instruction, the erasion level is set. When this setting range does not agree with the cell unit of the current cell, the current cell is divided to set a sequence of divided cells. Playback management information of each of the divided cells and current cell is re-created, and erasion level information is appended to playback management information of the divided cell that belongs to the appending range.

Abstract: A phase standard position signal generator generates a phase standard position signal of a predetermined period indicating the phase standard position of an image signal of 24 frames/second format, for recordation into a recording reproducing medium. In reproducing from the recording reproducing medium, a phase standard position sensor senses the phase standard position signal. A counter performs frequency quintuplication of the phase standard position signal and counts the period of the frequency-quintupled signal. A time code reader reads a 24 Hz time code value from the recording reproducing medium. A time code generator calculates a 30 Hz time code with the use of the counted value given by the counter and the 24 Hz time code value. Thus, the time code of 24 Hz period is converted into the 30 Hz time code with high precision even in variable-speed reproduction.

Abstract: The erasion level appending range of a file is instructed. According to this instruction, the erasion level is set. When this setting range does not agree with the cell unit of the current cell, the current cell is divided to set a sequence of divided cells. Playback management information of each of the divided cells and current cell is re-created, and erasion level information is appended to playback management information of the divided cell that belongs to the appending range.

Abstract: The erasion level appending range of a file is instructed. According to this instruction, the erasion level is set. When this setting range does not agree with the cell unit of the current cell, the current cell is divided to set a sequence of divided cells. Playback management information of each of the divided cells and current cell is re-created, and erasion level information is appended to playback management information of the divided cell that belongs to the appending range.

Abstract: An electronic program guide processing device is connectable to a set-top box configured to receive electronic program guide information. The set-top box includes at least one auxiliary interface that supports communication between the electronic program guide processing device and the set-top box. The electronic program guide processing device includes at least one device interface connectable to the auxiliary interface. The electronic program guide processing device further includes an electronic program guide subsystem connected to the device interface to receive and process the electronic program guide information from the set-top box. In one aspect, a digital video recorder is connectable to a set-top box configured to receive electronic program guide information and broadcast audiovisual data. The set-top box includes at least one auxiliary interface that supports communication between the digital video recorder and the set-top box.

Abstract: In recording, reproducing, and recording/reproducing apparatuses and methods thereof, while endlessly-recording first data, desired second data can be easily stored. The apparatuses include a recording mechanism for endlessly-recording the first data in a recording medium, an input for inputting a start and end point of the second data out of the first data, and a controller, when the start point and end point are designated, for controlling the recording mechanism so as to endlessly-record the first data while avoiding a recording region for the second data. Thereby, the second data can be stored without replacing the recording medium even if the second data is endlessly-recorded. In addition, when the start point and end point of the desired second data out of the first data are designated, the start point and end point are recorded, and then the first data is endlessly-recorded based on the recorded start point and end point while avoiding the recording region for the second data.

Abstract: In order to search for an image recorded on an optical disk 10, a registration trigger is generated automatically or in response to an instruction of the user from a microcomputer block 30, a pointer indicating the recording position of a main image which is used as an index image in a preset area of the optical disk 10 via a data processor 36 and disk drive 32, index image data which becomes the index image is created in an encoder section 50 and data is recorded from an index image buffer memory 59 into a user menu file on the optical disk 10 via a formatter 56, data processor 36 and disk drive 32.

Abstract: In order to search for an image recorded on an optical disk 10, a registration trigger is generated automatically or in response to an instruction of the user from a microcomputer block 30, a pointer indicating the recording position of a main image which is used as an index image in a preset area of the optical disk 10 via a data processor 36 and disk drive 32, index image data which becomes the index image is created in an encoder section 50 and data is recorded from an index image buffer memory 59 into a user menu file on the optical disk 10 via a formatter 56, data processor 36 and disk drive 32.

Abstract: A recording medium for storing virtual deletion information, and recording and/or reproducing method and apparatus therefor are provided. The recording medium includes a first region having a plurality of still pictures, and a second region having first virtual deletion information for the still pictures, and still picture group information for separating the still pictures in the first region into a predetermined maximum number of groups in order to manage the still pictures at a group level, wherein the first virtual deletion information is within the still picture group information, and if the first virtual deletion information is set to a virtual delete state, the corresponding still picture is not to be reproduced. Accordingly, file extent information can be prevented from excessively increasing by maximally preventing a recording area from being scattered, when some of a data file are deleted by a user's request.

Abstract: An information record medium is provided with: substantial information including video information and audio information which are related to each other; first reproduction control information to simultaneously reproduce the video information and the audio information out of the substantial information; and second reproduction control information to reproduce only the audio information out of the substantial information.

Abstract: A signal recording apparatus includes a quantizer for quantizing a signal employing a quantization step. The apparatus further includes a quantization information creator for creating plural pieces of quantization information to specify the quantization step, an encoder for generating an encoded signal from the quantized signal, and a recorder for recording a compressed signal having data containing the plural pieces of quantization information and the encoded signal.

Abstract: In some embodiments, the invention includes a method of processing a video stream. The method involves detecting a request to playback a particular frame. It is determined whether a decoded version of the particular frame is in a decoded frame cache. If it is not, the method includes(i) determining a frame dependency for the particular frame; (ii) determining which of the frames in the frame dependency are in the decoded frame cache; (iii) decoding any frame in the frame dependency that is not in the decoded frame cache and placing it in the decoded frame cache; and (iv) using at least some of the decoded frames in the frame dependency to decode the particular frame to create a decoded version of the particular frame. In some embodiments, the request to playback a particular frame is part of a request to perform frame-by-frame backward playback and the method is performed for successively earlier frames with respect to the particular frame as part of the frame-by-frame backward playback.