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    • 2. 发明申请
    • SPLICING SYSTEM
    • 分离系统
    • WO2005122688A2
    • 2005-12-29
    • PCT/IL2005000608
    • 2005-06-08
    • NDS LTDWHITE DAVIDMURRAY KEVIN ADARSHAN EZRASHLISSEL MOSHEWHITTAKER DAVIDGEYZEL ZEEVWACHTFOGEL REUVEN
    • WHITE DAVIDMURRAY KEVIN ADARSHAN EZRASHLISSEL MOSHEWHITTAKER DAVIDGEYZEL ZEEVWACHTFOGEL REUVEN
    • H04N5/00H04N7/24
    • G11B27/105G11B27/322H04N21/4325H04N21/44016
    • A method for switching from playing a first compressed data segment to playing a second compressed recorded data segment, the method including playing an uncompressed copy of a start of the second compressed recorded data segment upon switching from playing the first compressed data segment, decoding the second compressed recorded data segment from a preceding random access point, the preceding random access point preceding, in the second compressed recorded data segment, a point at which playing is to be switched to the second compressed recorded data segment, stopping the decoding of the second compressed recorded data segment when reaching a point beyond a point currently being played in the uncompressed copy, and switching to playing the second compressed recorded data segment when playing the uncompressed copy of a start of the second compressed recorded data segment reaches the point at which the decoding of the second compressed recorded data segment was stopped. Related apparatus and methods are also provided.
    • 一种用于从播放第一压缩数据段到播放第二压缩记录数据段的切换的方法,所述方法包括:播放所述第二压缩记录数据段的开始的未压缩副本,从播放所述第一压缩数据段切换,解码所述第二压缩数据段 从前一个随机接入点的前一随机接入点的压缩记录数据段,在第二压缩记录数据段中的前一个随机接入点,播放要切换到第二压缩记录数据段的点,停止对第二压缩记录数据段的解码 当到达超过当前在未压缩副本中播放的点的点时记录数据段,并且当播放第二压缩记录数据段的开始的未压缩副本时切换到播放第二压缩记录数据段到达解码的点 的第二压缩记录数据段被停止。 还提供了相关的装置和方法。
    • 7. 发明专利
    • SYSTEM FOR DATA STREAM PROCESSING
    • IL132859A
    • 2008-07-08
    • IL13285999
    • 1999-11-10
    • NDS LTDSHLISSEL MOSHEWACHTFOGEL REUVENDARSHAN EZRA
    • SHLISSEL MOSHEWACHTFOGEL REUVENDARSHAN EZRA
    • B26F1/26B28D1/14G11B27/10H04N5/783H04N5/913H04N7/167H04N7/24H04N9/804H05B6/80
    • Apparatus for processing a data stream (110) comprises a data stream receiver (150) operative to receive a transport stream (TS), TS storage apparatus (170) operative to store at least a portion of the TS having a beginning and comprising a plurality of TS packets. The apparatus comprises candidate determining apparatus (190) operative to determine, from among the plurality of TS packets, at least one TS packet comprising a candidate access point, candidate offset storage apparatus (170) operative to store in an index store a byte offset of the candidate access point, and arrival time storage apparatus (170) operative to store in the index store a plurality of indications of byte offset, each byte offset being associated with an arrival time of a received TS packet. The TS comprises a partially scrambled TS having a scrambled data portion (130) and an unscrambled data portion (140), and the data stream receiver (150) also comprises analyzing apparatus (160). The analyzing apparatus is operative to distinguish between the scrambled data portion (130) and the unscrambled data portion (140) and to provide the unscrambled data portion (140) for analysis by the candidate determining apparatus (190). The candidate determining apparatus (190) is operative to determine said at least one TS packet comprising a candidate access point based on examination of at least part of the unscrambled data portion (140) provided by the analyzing apparatus (160).
    • 8. 发明申请
    • NOVEL TRICK MODE SYSTEM
    • 新的TRICK模式系统
    • WO2006106498A3
    • 2007-11-01
    • PCT/IL2006000071
    • 2006-01-18
    • NDS LTDMIRSKY YAIRWACHTFOGEL REUVEN
    • MIRSKY YAIRWACHTFOGEL REUVEN
    • H04N5/91
    • H04N7/1675G11B20/00086G11B20/0021G11B20/00507G11B27/005H04N5/783H04N9/8042H04N21/4147H04N21/4325H04N21/4405H04N21/4623H04N21/8453H04N2005/91364
    • A method is described for trick mode playback (10), the method including selecting a key- frame in recording (20) substantially in the vicinity of a trick mode playback starting position (30), preparing a decryption key associated with a key period including the selected key-frame, sending the prepared decryption key to a descrambler (70), thereby enabling decryption of video beginning at the selected key-frame, sending a first number P seconds of decrypted video frames, starting a the selected key-frame, at a predetermined speed for a predetermined number of seconds, to a video decoder, in parallel to the sending P seconds of video frames, choosing at least a second video section (50) to stream to the video decoder, sending a decryption key associated with the chosen second video section to the descrambler (70), and repeating the steps of selecting, preparing, sending the prepared decryption key, and sending a first number P seconds of decrypted video frames.
    • 一种用于特技模式播放(10)的方法,该方法包括基本上在特技模式重放开始位置(30)附近选择记录(20)中的关键帧,准备与密钥周期相关联的解密密钥,包括 所选择的关键帧,将准备的解密密钥发送到解扰器(70),从而使得能够以所选择的关键帧开始的视频解密,发送第一个数字P秒的解密的视频帧,开始所选择的关键帧, 以预定速度预定的秒数向视频解码器并行发送P秒的视频帧,选择至少第二视频部分(50)流向视频解码器,发送与视频解码器相关联的解密密钥 所选择的第二视频部分到解扰器(70),并且重复选择,准备发送准备的解密密钥以及发送第一个数字P秒的解密视频帧的步骤。