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    Picture data reproducing apparatus and method
    22.
    发明授权
    Picture data reproducing apparatus and method 失效
    图像数据再现装置和方法

    公开(公告)号：US07321715B2

    公开(公告)日：2008-01-22

    申请号：US10619261

    申请日：2003-07-14

    Applicant: Kenji Yamasaki ,  Yasuhiro Goto ,  Fumiyoshi Abe

    Inventor： Kenji Yamasaki ,  Yasuhiro Goto ,  Fumiyoshi Abe

    IPC: H04N5/91 ,  H04N7/26

    CPC classification number: H04N9/8042 ,  H04N5/783

    Abstract: In a picture data reproducing method of reproducing picture data recorded to a recording medium according the MPEG standard, there is provisionally stored, into a stream buffer, picture data grouped as a GOP which begins with an I picture, the picture data provisionally stored in the stream buffer is read sequentially starting with a previous picture and the read picture data is decoded in the course of a FORWARD reproduction being done, and picture data acquired from the recording medium is additionally supplied to the stream buffer. When the picture data provisionally stored in the stream buffer have been read in the decoding step to before last N frames, a predetermined amount of picture data is additionally supplied, in the data adding step, beginning at the head of a GOP including picture data in the remaining N-th frame in the stream buffer. Thus, a smooth variable-speed reproduction can be done according to the MPEG Standard.

    Abstract translation: 在根据MPEG标准再现记录在记录介质上的图象数据的图象数据再现方法中，临时存储在流缓冲器中，以GOP为开始的图像数据，该GOP以I图象开始，临时存储在 流缓冲器从先前图像开始顺序读取，并且读取的图像数据在进行正向再现的过程中被解码，并且从记录介质获取的图像数据被附加地提供给流缓冲器。 当在解码步骤中临时存储在流缓冲器中的图像数据已被读取到最后N帧之前时，在数据添加步骤中，在包括图像数据的GOP的头部开始附加地提供预定量的图像数据 流缓冲器中剩余的第N帧。 因此，可以根据MPEG标准进行平滑的可变速度再现。

    Picture data reproducing apparatus and method
    23.
    发明授权
    Picture data reproducing apparatus and method 失效
    图像数据再现装置和方法

    公开(公告)号：US07239795B2

    公开(公告)日：2007-07-03

    申请号：US10619271

    申请日：2003-07-14

    Applicant: Kenji Yamasaki ,  Yasuhiro Goto ,  Fumiyoshi Abe ,  Munehiro Shimomura

    Inventor： Kenji Yamasaki ,  Yasuhiro Goto ,  Fumiyoshi Abe ,  Munehiro Shimomura

    IPC: H04N5/91 ,  H04N7/26

    CPC classification number: H04N21/44004 ,  H04N5/783 ,  H04N9/8042 ,  H04N21/440281

    Abstract: In an STC generating step, STCs (STC_d) delayed a time “System_delay” from STC (STC_medium) in compressed picture data read from a recording medium in the normal-speed reproduction mode is sequentially generated. In this STC generating step, there is set at shift from a variable-speed reproduction to normal-speed reproduction an STC initial value on the basis of results of comparison between PTS (PTS_s) in display picture data at the time of reproduction mode shift and {STC_medium at the shift−(delay due to the shift (shift_delay)+System_delay)}. Thus, when shifting the reproduction mode from a variable-speed one to normal-sped one in compliance with the MPEG standard, pictures can smoothly be displayed in the normal-speed reproduction mode without skipping over any displayed pictures.

    Abstract translation: 在STC生成步骤中，STC（STC_d）在从正常速度再现模式中从记录介质读取的压缩图像数据中顺序生成STC（STC_medium）时间“System_delay”。 在该STC生成步骤中，基于再现模式移位时的显示图像数据中的PTS（PTS_s）与再现模式移位时的比较结果与 {STC_medium at shift-（由于shift（shift_delay延迟）+ System_delay）}。 因此，当根据MPEG标准将再现模式从可变速度转换为正常速度时，图像可以平滑地以正常速度再现模式显示，而不跳过任何显示的图像。

    Recording apparatus and method, playback apparatus and method, and recording medium therefor
    24.
    发明授权
    Recording apparatus and method, playback apparatus and method, and recording medium therefor 有权

    公开(公告)号：US07231137B2

    公开(公告)日：2007-06-12

    申请号：US10848449

    申请日：2004-05-18

    Applicant: Takuji Himeno ,  Yoichiro Tauchi ,  Toshinori Kouzai ,  Tsukasa Hashino ,  Hidehiko Teshirogi ,  Fumiyoshi Abe

    Inventor： Takuji Himeno ,  Yoichiro Tauchi ,  Toshinori Kouzai ,  Tsukasa Hashino ,  Hidehiko Teshirogi ,  Fumiyoshi Abe

    IPC: H04N7/26

    CPC classification number: H04N9/7921 ,  H04N9/8042

    Abstract: Audio signals and video signals are recorded as follows. Three video PES packets, each being formed of one video frame, are combined to form a video editing unit. Then, the video editing unit and the associated audio editing unit are alternately disposed on a magnetic tape. The recorded PES packets are output as a TS as follows. A STC is initialized, and then, PSI packets of a PAT and a PMT are output. TS packets specially used for a PCR for storing the STC are then output at certain intervals. Subsequently, video PES packets are converted into TSs, and the output of the video TSs is started while synchronizing a time obtained by subtracting vbv_delay from the first I-picture DTS with the STC. Audio PES packets are converted into TSs, and the output of the audio TSs is started while synchronizing a time obtained by subtracting the start up delay from the first frame with the STC. Data streams are recorded in the following manner. The three MSBs of a sync block (SB) header indicate the type of data to be recorded in the following data area. If the data type is PES-VIDEO or PES-AUDIO, a full/partial flag is recorded in the fourth MSB of the SB header. In the subsequent four LSBs, the continuity count value representing the continuity of the same type of SBs is recorded.

    Magnetic tape recording apparatus and method, magnetic tape format, and recording medium therefor
    26.
    发明授权
    Magnetic tape recording apparatus and method, magnetic tape format, and recording medium therefor 失效
    磁带记录装置和方法，磁带格式及其记录介质

    公开(公告)号：US06996330B2

    公开(公告)日：2006-02-07

    申请号：US09818402

    申请日：2001-03-27

    Applicant: Toshinori Kouzai ,  Fumiyoshi Abe ,  Tomoo Hayakawa ,  Tsukasa Hashino

    Inventor： Toshinori Kouzai ,  Fumiyoshi Abe ,  Tomoo Hayakawa ,  Tsukasa Hashino

    IPC: H04N5/91

    CPC classification number: G11B20/1208

    Abstract: 139 sync blocks, each having 111 bytes, are disposed on each track of a magnetic tape. Among the 139 sync blocks, 121 sync blocks each consist of a two-byte detection pattern for detecting the sync block, three-byte identification information for identifying the sync block, 96-byte main data, and 10-byte inner error correcting code added to the identification information and the main data. In the remaining 18 sync blocks, instead of the main data, 96-byte outer error correcting code is included. The outer error correcting code is provided for each group of the 139 sync blocks. Such a group of 139 sync blocks is obtained by dividing 2224 sync blocks contained in sixteen tracks by sixteen planes, 1668 sync blocks contained in twelve tracks by twelve planes, or 1112 sync blocks contained in eight tracks by eight planes. The sync blocks are arranged on the magnetic tape so that the distance between the sync blocks belonging to the identical plane is constant among the planes.

    Abstract translation: 每个具有111个字节的同步块被布置在磁带的每个轨道上。 在139个同步块中，121个同步块由用于检测同步块的两字节检测模式，用于识别同步块的三字节识别信息，96字节主数据和添加的10字节内部纠错码组成 识别信息和主要数据。 在剩余的18个同步块中，代替主数据，包括96字节的外部纠错码。 为每组139个同步块提供外部纠错码。 通过将包含在十六个磁道中的2224个同步块除以十六个平面，包含在十二个磁道中的十六个平面的1668个同步块，或由八个平面包含在八个磁道中的1112个同步块来获得这样一组139个同步块。 同步块被布置在磁带上，使得属于同一平面的同步块之间的距离在平面之间是恒定的。

    Cassette tape loading apparatus
    30.
    发明授权
    Cassette tape loading apparatus 失效
    盒式磁带装载装置

    公开(公告)号：US4773616A

    公开(公告)日：1988-09-27

    申请号：US62634

    申请日：1987-06-16

    Applicant: Fumiyoshi Abe

    Inventor： Fumiyoshi Abe

    IPC: G11B15/43 ,  G11B15/467 ,  G11B15/665 ,  B65H23/04 ,  H02P5/50

    CPC classification number: G11B15/6656 ,  G11B15/43 ,  G11B15/467

    Abstract: A cassette tape loading apparatus is provided, by which a cassette tape wound around a pair of reels of a tape cassette is drawn from the tape cassette, wrapped around a rotary head drum of a cassette tape recorder and then recorded and/or reproduced, in which revolution speed of a reel motor rotating each of the reels is detected by a revolution speed detector and the detected revolution speed is compared with a reference revolution speed, and then on the basis of the compared results, the revolution speed of the reel motor is controlled to prevent the tape from being supplied from one reel to the other reel upon tape loading or tape unloading, whereby the position at which the tape is wrapped around the rotary head drum can be prevented from being displaced considerably and the tape can be protected from being damaged.

    Abstract translation: 提供了一种盒式磁带装载装置，通过该盒式磁带装载装置，卷绕在盒式磁带的一对卷轴上的盒带被卷绕在盒式磁带上，缠绕在盒式磁带录音机的旋转磁头鼓上，然后记录和/或再现 通过转速检测器检测卷取电动机旋转每个卷盘的转速，将检测出的转速与基准转速进行比较，然后基于比较结果，卷取电动机的转速为 被控制以防止在带装载或带子卸载时将带从一个卷轴供应到另一个卷轴，由此可以防止带缠绕在旋转磁头鼓上的位置被显着地移位，并且可以防止磁带被保护 被损坏

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