公开(公告)号：US06766105B1

公开(公告)日：2004-07-20

申请号：US09275022

申请日：1999-03-24

申请人： Ayumu Okutani ,  Yukio Sugimura

发明人： Ayumu Okutani ,  Yukio Sugimura

IPC分类号： H04N726

CPC分类号： G11B27/107 ,  G11B27/324 ,  G11B2220/91 ,  H04N5/9261 ,  H04N5/9268

摘要： A digital VTR according to the present invention comprises an image compressing circuit for subjecting input image data to variable length compression, to output variable length coding data and identification data representing the end of one field, recording means for recording on a video tape the variable length coding data outputted from the image compressing circuit, and pseudo CTL signal recording means for recording a pseudo CTL signal on the video tape every time the identification data is outputted from the image compressing circuit.

摘要翻译： 根据本发明的数字VTR包括用于对输入图像数据进行可变长度压缩的图像压缩电路，输出可变长度编码数据和表示一场结束的识别数据，用于在录像带上记录可变长度 从图像压缩电路输出的编码数据，以及每当从图像压缩电路输出识别数据时，在视频磁带上记录伪CTL信号的伪CTL信号记录装置。

公开(公告)号：US06233391B1

公开(公告)日：2001-05-15

申请号：US09149047

申请日：1998-09-08

申请人： Shigekazu Morikawa ,  Ayumu Okutani

发明人： Shigekazu Morikawa ,  Ayumu Okutani

IPC分类号： H04N591

CPC分类号： H04N5/9261 ,  G11B15/1808 ,  G11B15/1875 ,  H04N5/915

摘要： A digital video recorder which intermittently records digital video signals, including a memory capable of storing digital video signals a tape running mechanism and a control circuit for controlling the operations of the memory and the mechanism. The digital video signals are thinned with a constant cycle of intermittent recording, the thinned signals are written to the memory. When the memory has been filled to a predetermined capacity, a magnetic tape is caused to start to run, and the digital video signals are read from the memory and recorded on the tape. When the memory is emptied by signal reading to afford the predetermined capacity, the tape is brought to a stop.

摘要翻译： 一种数字视频记录器，其间歇地记录数字视频信号，包括能够存储数字视频信号的磁带运行机构的存储器和用于控制存储器和机构的操作的控制电路。 数字视频信号以间歇记录的恒定周期进行细化，减薄的信号被写入存储器。 当存储器已经被填充到预定容量时，使磁带开始运行，并且数字视频信号从存储器读取并记录在磁带上。 当通过信号读取清空存储器以提供预定容量时，磁带被停止。

公开(公告)号：US06954582B2

公开(公告)日：2005-10-11

申请号：US09783614

申请日：2001-02-15

申请人： Ayumu Okutani ,  Yoshiki Hirose ,  Akira Yamasaki ,  Tetsuro Yabumoto ,  Kazunori Miyata

发明人： Ayumu Okutani ,  Yoshiki Hirose ,  Akira Yamasaki ,  Tetsuro Yabumoto ,  Kazunori Miyata

IPC分类号： G11B5/008 ,  G11B15/087 ,  G11B15/18 ,  G11B15/467 ,  G11B15/52 ,  G11B20/12 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  H04N5/77 ,  H04N5/783 ,  H04N9/804 ,  H04N9/806 ,  H04N5/91

CPC分类号： G11B5/0086 ,  G11B15/087 ,  G11B15/1875 ,  G11B15/4673 ,  G11B15/52 ,  G11B20/1207 ,  G11B27/005 ,  G11B27/107 ,  G11B27/324 ,  G11B2220/90 ,  G11B2220/91 ,  H04N5/77 ,  H04N5/783 ,  H04N9/8047 ,  H04N9/8063

摘要： Disclosed is a digital VTR comprising means for recording a cue mark in a position, corresponding to a predetermined position in the middle of each recording block, on a control track of a magnetic tape at the time of recording, means for stopping, at the time point where actual data in the recording block are stored in predetermined amounts in a memory, the acceptance of the data in the memory and accelerating a capstan motor at the time of fast-forward play, and means for decelerating the capstan motor when the cue mark is detected.

摘要翻译： 公开了一种数字VTR，包括用于在对应于每个记录块的中间的预定位置的位置上记录提示标记的装置，在记录时在磁带的控制轨道上，在该时刻停止的装置 记录块中的实际数据以预定量存储在存储器中，数据在存储器中的接受以及在快进播放时加速主导轴电动机的点，以及当提示标记 被检测到。

公开(公告)号：US06768862B1

公开(公告)日：2004-07-27

申请号：US09539522

申请日：2000-03-30

申请人： Ayumu Okutani ,  Yoshiaki Maida ,  Kazunori Miyata

发明人： Ayumu Okutani ,  Yoshiaki Maida ,  Kazunori Miyata

IPC分类号： H04N576

CPC分类号： H04N5/76 ,  G11B15/087 ,  G11B15/1875 ,  G11B27/107 ,  G11B27/3027 ,  G11B27/324 ,  G11B27/36 ,  G11B2220/90 ,  G11B2220/91 ,  H04N9/8042 ,  H04N9/8063

摘要： A retrieval method by designation of recording time comprises the first step of specifying, when recording time is designated in order to perform retrieval by designation of the recording time, a block corresponding to the designated recording time on the basis of VASS data, and storing in a second memory data in the block, the second step of retrieving, out of a plurality of fields included in the block stored in the second memory, the field having recording time information corresponding to the designated recording time by binary search, and the third step of reproducing and outputting data corresponding to the retrieved field.

摘要翻译： 通过指定记录时间的检索方法包括：当记录时间被指定以通过指定记录时间进行检索时，指定基于VASS数据对应于指定记录时间的块的第一步骤，并且存储在 在该块中的第二存储器数据，第二步骤，通过二进制搜索从存储在第二存储器中的块中包含的多个字段中检索具有与指定记录时间相对应的记录时间信息的字段，第三步骤 再现和输出对应于检索字段的数据。

公开(公告)号：US4742282A

公开(公告)日：1988-05-03

申请号：US58229

申请日：1987-05-20

申请人： Ayumu Okutani ,  Yukinori Konushi

发明人： Ayumu Okutani ,  Yukinori Konushi

IPC分类号： G11B15/18 ,  G11B15/467 ,  G11B15/48 ,  H02P3/08 ,  H02P3/10

CPC分类号： H02P3/08 ,  G11B15/1875 ,  G11B15/467 ,  G11B15/4673 ,  G11B15/48

摘要： A brake pulse forming circuit determines the rotational direction of a capstan motor in each edge of signals FG1 and FG2, utilizing D type flip-flops (21, 22, 23 and 24) and an NOR gate (25). A brake pulse f having a longer pulse width supplied from an intermittent driving circuit (10) to brake the capstan motor in a reverse direction is terminated by an AND gate (27), simultaneously with reverse detection of the capstan motor, and is applied to a capstan motor driving circuit as a corrected brake pulse j having a proper pulse width. In addition, a motor drive signal g supplied from the intermittent driving circuit (10) is terminated by an OR gate (26), simultaneously with reverse detection of the capstan motor. However, an EX-OR gate (28) prevents the motor driving signal g from being terminated by erroneous determination of the rotational direction at the time of starting the capstan motor.