摘要:
A method and apparatus for decoding sub-picture data and MPEG video data in an A/V decoder of a DVD player. The method prevents mismatches between sub-picture data and MPEG video data during a fast replay mode by synchronizing a decoding operation of the MPEG video data with a decoding operation of the sub-picture data. The method includes the steps of updating a system clock reference value with a presentation time stamp value during decoding of video data, extracting a display control sequence from a searched sub-picture unit, comparing a command executing start time in the display control sequence with the system clock reference value, and skipping the current display control sequence if the updated system clock reference value is greater than the command executing start time, otherwise, waiting until the updated system clock reference value is equal to the command executing start time and then executing the display control sequence in the searched sub-picture unit.
摘要:
Real time information, such as a digital video signal, is supplied and simultaneously received, converted into/from blocks of information in channel's signals and read/written from/onto a disc-like record carrier. Read/write-scheduling algorithms are used for reading/writing blocks of information recorded in fixed sized fragment areas on the record carrier. Typically one writing action and a plurality of readings actions are used in one read/write cycle of either a fixed duration or of a variable duration. The invention provides for reading and writing of edited files and re-ordering of read actions in a read/write cycle.
摘要:
A control device to drive and control the CD player or CD writer to operate without any computer available is disclosed. The control device includes a CD player base and a control panel base connected to the base. The control panel base includes a LCD display and a control panel with a plurality of keys. An interface slot and a plurality of terminal ports are located on the front and back of the control panel base, respectively. The control device further includes a CPU, which is connected to audio-in/out ports, video in/out ports, speaker microphone, LCD display, power port, remote control keyboard, CD/RW Driver, and expanded memory/ROM so that the CD player can operate to play the CD without support by the computer when the interface port of the CD player is inserted to the interface slot.
摘要:
A data reproducing apparatus characterized by comprises a data accumulation device consisting of a non-linearly accessible recording medium for accumulating data including video data, a plurality of data reproducing device adapted to storing the data read out from said data accumulation device in respective memories, converting said data stored in the memories to a predetermined data format and outputting the data and a control device for allocating time slots to said data reproducing device with a predetermined cycle period and controlling said data reproducing device so as to cause them to read out said data from said data accumulation device and store them in said respective memories in said respective time slots, each of said memories including at least three banks, each having a capacity for storing data for the time slots of each said predetermined cycle period, said control device assigning to the data reproducing device operating for variable speed replaying the time slots to be allocated to the remaining data reproducing device.
摘要:
Control command processing apparatus has first decoding means which decodes a predetermined set of control commands. When a first end command is processed, the address of the end command is compared with an address information item with regard to the beginning of the next control command sequence and, from the difference between the addresses it is identified whether the end command is additionally followed by further control commands of a second set of control commands. These commands are then processed by further decoding means. Undefined states are thereby prevented.
摘要:
Optical discs formatted to record plural audio streams of different content for reproduction with a single video stream can result in audio output of content unexpected by the user depending upon the audio stream configuration contained in the AV stream reproduced. This can confuse and cause the user to change the audio output after reproduction starts. To prevent this, information indicating the type of audio stream configuration contained in each AV stream on the optical disc is stored with each audio stream. This audio stream type information is presented to the user on the same screen from which an AV program is selected for playback. The user can thus know before playback starts what audio stream channel is preselected for playback, and can change the audio channel as desired before playback starts.
摘要:
A recording medium and a recording/playback unit which use with the recording medium. The recording medium comprises a still image data area capable of storing a plurality of still image data pieces therein and an area storing still image set management information therein for managing a part or the whole of the still image data in the still image data area as one still image set. Each still image set has the corresponding still image set management information.
摘要:
A digital versatile disk device is provided which is capable of reproducing video disks without driving a computer even when the computer is not connected to the versatile disk device. The digital versatile disk device is provided with a computer connection signal line 30 for detecting whether or not the computer is connected, a DVD drive 22 for reading information from a digital versatile disk, and a DVD controller for controlling the DVD drive in response to a result by the computer connection signal line 30. When the digital versatile disk device is not connected with the computer, the DVD controller 14 controls the DVD drive 22 in accordance with an operational instruction input from the control portion 16.
摘要:
This invention relates to a data recording and reproduction apparatus, and a method and a system for sending out data for preparing a log file of material codes and a sending time. The video server comprises a storage means utilizing a randomly accessible storage media, and a server controller for controlling the storage means and multiple input and output ports connected to the storage means. The input port includes a multiplexer for inserting the material code to identify video source onto compressed video signals derived from video signals fed to the input ports. Video signals with their material codes superimposed thereon are recorded as video sources on the storage means. A material code is extracted from any video signal that is reproduced, and a log file of the sending data (sending time and data including material code relating to the sent-out material) is generated.
摘要:
A method and apparatus for displaying DVD and/or application data is accomplished by detecting selection of a user interaction request that is requesting the display of a DVD subpicture or an application subpicture. Once the user interaction request is detected, the system determines the particular type of the request; i.e., whether the request is for a DVD data stream or an application data stream. Note that the DVD data stream includes DVD video data, DVD audio data, and DVD subpicture data. Simliarly, the application data stream includes at least one of application video data, application audio data, and application subpicture data. When the user interaction request relates to the application data stream, the application data stream is displayed only or merged with the DVD data stream.