Abstract:
A method for synchronizing an audio track that is being recorded at a first location with a video track that is being recorded at a second location, such as on a flying UAV, is disclosed. First, the audio and video recorders being to record sound and video. Then, a GPS receive is used to pick up the very accurate GPS clock signal. A real-time clock is also used locally to generate a real-time value. At a predetermined time, the GPS time data is interrogated and a time-stamp is generated. A video encoder is then used to embed the time-stamp, either during recording, or shortly thereafter. A networked audio recording device records audio with a time stamp acquired from the network. These respective time-stamps are then used in post-processing to accurately synchronize the audio and video tracks.
Abstract:
A system and method for allowing streaming audio to be transmitted in advance of streaming video in a data stream without syncliiOnization errors, in order to minimize audio discontinuities, even where video transmission may become degraded.
Abstract:
AVClip recorded in BD-ROM is obtained by multiplexing a graphics stream and a video stream. The graphics stream is a PES packet sequence that includes 1)PES packets storing graphics data (ODS) and 2)PES packets storing control information (PCS). In each ODS, values of DTS and PTS indicate a timing of decoding start for corresponding graphics data, and a timing of decoding end for corresponding graphics data, respectively. In each PCS, a value of PTS indicates a display timing of corresponding decoded graphics data combined with the video stream.
Abstract:
An audio/video data recording apparatus capable of describing a recording start time directly in a play list when reproducing a moving picture by specifying a time interval. When recording a moving picture, a recording start time is recorded as a time code of a GOP header which is management data for each of continuous portions (#0, #1) in each moving picture file. When reproducing a moving picture, a moving picture reproduction interval is specified by using the recording start time held in the time code field in the GOP header.
Abstract:
A display and input method and apparatus providing fully synchronized audio/video information for use with computers and for display on computer-compatible monitors is described. The display and input system includes a computer interface, and provides synchronized digital video and audio input, as well as synchronized digital and analog audio/video output. The display and input system provides synchronization of moving images for display on 72 Hz and 75 Hz computer-compatible monitors. The display and input system facilitates 72 Hz and 75 Hz display of synchronized moving images, such as 24 fps tripled on 72 Hz computer-monitor displays, without using frame dropping or tearing techniques. In accordance with one aspect of the present invention, a "triple-repeat" method (of 24 fps and 25 fps video) is used to provide synchronized display onto 72 Hz and 75 Hz displays, respectively. A "double-repeat" method is used to provide synchronized display of 36 fps and 37.5 fps images on 72 Hz and 75 Hz displays, respectively.
Abstract:
A method of storing a substantially real time stream of information signals arranged in separate, consecutive data packets of digital format on a disc like record carrier. A new stream pack (S-PCK) is defined comprising a pack header and a multiple of source packets containing said data packets with corresponding added time stamps related to a time of arrival of said data packets. The pack header comprises data packet retrieval information, such as the number of new source packets in the stream pack and the effect of the start location of the first source packet in the stream pack. Preferably private stream (2) of the MPEG-format is employed for this new stream.
Abstract:
A method of storing a substantially real time stream of information signals arranged in separate, consecutive data packets of digital format on a disc like record carrier. A new stream pack (S-PCK) is defined comprising a pack header and a multiple of source packets containing said data packets with corresponding added time stamps related to a time of arrival of said data packets. The pack header comprises data packet retrieval information, such as the number of new source packets in the stream pack and the effect of the start location of the first source packet in the stream pack. Preferably private stream (2) of the MPEG-format is employed for this new stream.
Abstract:
A method and apparatus for converting picture information. A time code is processed by generating information on whether or not a location is proper to edition when converting picture information of a predetermined system into picture information of another system, and writing the information to time code data accompanied with the picture information of another system. The picture information is converted from a first system to a second. An information reading apparatus reads information about sequential distribution of each frame for generating a field picture in a process of converting picture information of a first system into picture information of a second system whose frame number unit is different from that of the first system by sequentially distributing each frame inside of a predetemined frame number unit of the picture information at plural patterns for generating a field picture. A derived frame removing apparatus removes a derived frame from picture information of a second system. Picture information is transmitted after converting picture information of a first system into picture information of a second system. A procedure for converting picture information of a first system into picture information of a second system is recorded on a recording medium.
Abstract:
A video playback device includes video and audio event detectors (102 and 104) which detect the presence of events in the video signal as it is played. When the viewer commands the device to skip past a portion of a recorded program, a processor (114) monitors the detect events to locate an event corresponding to the beginning of a next program segment. The device then returns to that location and begins normal play. Alternatively, the viewer may manually terminate the skipping process, at which time the device automatically returns to the location of the most recently detected event.