公开(公告)号：US06631242B1

公开(公告)日：2003-10-07

申请号：US08424156

申请日：1995-04-17

申请人： Yukio Kubota ,  Yoichirou Senshu ,  Akihiro Uetake ,  Shinichi Hasegawa ,  Moriyuki Kawaguchi ,  Hajime Inoue ,  Takahito Seki ,  Keiji Kanota ,  Tetsujiro Kondo ,  Naoki Honda

发明人： Yukio Kubota ,  Yoichirou Senshu ,  Akihiro Uetake ,  Shinichi Hasegawa ,  Moriyuki Kawaguchi ,  Hajime Inoue ,  Takahito Seki ,  Keiji Kanota ,  Tetsujiro Kondo ,  Naoki Honda

IPC分类号： H04N5782

CPC分类号： H04N9/8042 ,  G11B5/0086 ,  G11B5/09 ,  G11B5/85 ,  G11B15/1875 ,  G11B20/00007 ,  G11B20/1833 ,  H04N5/782 ,  H04N5/78263 ,  H04N9/8047 ,  H04N9/8063 ,  H04N19/98

摘要： In an apparatus for recording and reproducing a digital picture signal, the large number of data bits in the digital picture signal to be recorded is reduced by a ratio of approximately 1:9, and the thus compressed data are recorded with a recording density of at least approximately 0.8 bit/&mgr;m2 in relatively narrow successive skewed tracks without guard bands on a metal evaporated magnetic tape having predefined characteristics. The magnetic tape has a width of no more than approximately 8 mm and a thickness of no more than approximately 7 &mgr;m and is wound in a relatively small size cassette.

摘要翻译： 在用于记录和再现数字图像信号的装置中，要记录的数字图像信号中的大量数据比例减少大约1:9的比率，并且将这样压缩的数据以记录密度记录在 在具有预定特征的金属蒸发磁带上，在相对狭窄的连续倾斜轨道中，最小约0.8比特/毫米<2>无保护带。 磁带具有不大于约8mm的宽度和不大于约7μm的厚度并且缠绕在相对较小尺寸的盒中。

公开(公告)号：US5193035A

公开(公告)日：1993-03-09

申请号：US558624

申请日：1990-07-27

申请人： Keiji Kanota ,  Takahito Seki

发明人： Keiji Kanota ,  Takahito Seki

IPC分类号： G11B20/14 ,  H04L7/02 ,  H04L7/033 ,  H04L25/497 ,  H04L27/14 ,  H04N5/93 ,  H04N5/935

CPC分类号： H04N5/935 ,  H04N5/93

摘要： In a playback phase correction apparatus for a video recorder, a signal level of an input signal is compared with predetermined reference levels at times according to a playback clock signal. The apparatus operates to continuously detect whether the phase of the playback clock approaches or recedes from a point in time at which the eye pattern of the input signal is at a maximum value by comparing a count value obtained from the comparison results of the reference level counts from a previous cycle with those of the current cycle. Then, the apparatus controls a playback clock delay circuit on the basis of these count values so than an optimal count value is continuously maintained, thus ensuring that the timing of the playback clock is maintained in synchronization with the maximum eye pattern interval of the input signal.

公开(公告)号：US5434673A

公开(公告)日：1995-07-18

申请号：US5048

申请日：1993-01-15

申请人： Hajime Inoue ,  Takahito Seki ,  Keiji Kanota

发明人： Hajime Inoue ,  Takahito Seki ,  Keiji Kanota

IPC分类号： G11B20/10 ,  G11B20/12 ,  H04N5/92 ,  H04N7/52 ,  H04N7/54 ,  H04N9/804 ,  H04N9/82 ,  H04N19/895 ,  H04N5/76

CPC分类号： H04N9/8047 ,  H04N19/124 ,  H04N19/149 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/60 ,  H04N19/88 ,  H04N19/895 ,  H04N21/236 ,  H04N21/434 ,  H04N7/54 ,  H04N9/8233 ,  H04N19/146

摘要： In a digital information signal transferring apparatus for transferring sequential sync block data composed of encoded synchronous, ID and digital information signals, the digital information signal is encoded and an insertion area is formed therein, whereupon, an ID signal is added in the insertion area and comprises a format identifying signal, a signal for identifying the type of the digital information signal, and a sync block number.

摘要翻译： 在用于传送由编码的同步，ID和数字信息信号组成的顺序同步块数据的数字信息信号传送装置中，对数字信息信号进行编码并在其中形成插入区域，于是在插入区域中添加ID信号， 包括格式识别信号，用于识别数字信息信号的类型的信号和同步块号。

公开(公告)号：US4984099A

公开(公告)日：1991-01-08

申请号：US354031

申请日：1989-05-19

申请人： Keiji Kanota ,  Hajime Inoue ,  Takahito Seki

发明人： Keiji Kanota ,  Hajime Inoue ,  Takahito Seki

IPC分类号： G11B20/14 ,  G11B20/10 ,  H04L25/497 ,  H04N5/926

CPC分类号： H04N5/926 ,  G11B20/10009 ,  H04L25/497

摘要： An apparatus for decoding a transmitted signal has a receiver for receiving the transmitted signal, a filter for limiting the frequency of the output of the receiver below a predetermined frequency, a generator for generating a clock signal having a frequency equal to a transmitting rate of the signal output from the receiver, a converter for sampling the output of the filter at a frequency defined by the clock signal and for converting the filter output into a binary signal, and a processor for decoding the binary signal according to a predetermined system.

公开(公告)号：US4885646A

公开(公告)日：1989-12-05

申请号：US248113

申请日：1988-09-23

申请人： Keiji Kanota ,  Takahito Seki

发明人： Keiji Kanota ,  Takahito Seki

IPC分类号： G11B5/09 ,  G11B20/10

CPC分类号： G11B20/10009 ,  G11B20/10

摘要： A digital recording and reproducing system for ME tape uses a class 4 partial-response encoder in the recording apparatus and a corresponding decoder in the reproducing apparatus. A high signal-to-noise ratio is achieved without the need for a phase equalizer.

摘要翻译： 用于ME磁带的数字记录和再现系统使用记录装置中的4类部分响应编码器和再现装置中的相应解码器。 实现高信噪比而不需要相位均衡器。

公开(公告)号：US5973868A

公开(公告)日：1999-10-26

申请号：US769230

申请日：1996-12-18

申请人： Keiji Kanota ,  Yukio Kubota ,  Takahito Seki

发明人： Keiji Kanota ,  Yukio Kubota ,  Takahito Seki

IPC分类号： G11B15/467 ,  G11B20/12 ,  G11B27/036 ,  G11B27/30 ,  H04N5/92 ,  G11B5/09 ,  G11B5/584 ,  H04N5/95

CPC分类号： H04N5/9208 ,  G11B15/4678 ,  G11B20/1208 ,  G11B27/036 ,  G11B27/3027 ,  G11B27/3063 ,  G11B2220/90

摘要： Rotary head recording and/or reproducing apparatus in which respective oblique tracks on a record medium are scanned, each track having an information signal area in which information data is recorded and a track following area in which a tracking control pilot signal is recorded. The track following area precedes the information signal area; and in the preferred embodiment, an additional track following area follows the information signal area. The pilot signal is recorded in only a portion of the track following area, the remainder of which has timing sync data recorded therein. In an after-recording mode the timing sync data is reproduced, detected and used as a reference to define an after-record area.

公开(公告)号：US5526199A

公开(公告)日：1996-06-11

申请号：US417263

申请日：1995-04-05

申请人： Takahito Seki ,  Yukio Kubota ,  Keiji Kanota ,  Hajime Inoue

发明人： Takahito Seki ,  Yukio Kubota ,  Keiji Kanota ,  Hajime Inoue

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/926 ,  H04N5/945 ,  H04N5/95 ,  H04N9/804 ,  G11B5/09

CPC分类号： H04N9/8047 ,  H04N5/9264 ,  H04N5/945 ,  H04N5/78266 ,  H04N5/783 ,  H04N5/95

摘要： Digital data representing a compressed image is separated into priority data and normal data, and formatted so that the priority data is repeatedly recorded on a magnetic tape. The transmission rate of the digital data is compared with the recording rate on the magnetic tape to control the number of repetitions of the priority data.

摘要翻译： 表示压缩图像的数字数据被分成优先权数据和正常数据，并格式化，使得优先数据被重复记录在磁带上。 将数字数据的传输速率与磁带上的记录速率进行比较，以控制优先级数据的重复次数。

公开(公告)号：US5270876A

公开(公告)日：1993-12-14

申请号：US482302

申请日：1990-02-20

申请人： Hajime Inoue ,  Takahito Seki ,  Keiji Kanota

发明人： Hajime Inoue ,  Takahito Seki ,  Keiji Kanota

IPC分类号： G11B20/10 ,  H04N5/926 ,  H04N5/931 ,  G11B5/09 ,  G11B5/035

CPC分类号： H04N5/931 ,  G11B20/10009 ,  G11B20/10527 ,  H04N5/926

摘要： A magnetic recording and/or reproducing device uses a Viterbi decoding circuit wherein, when data falls within a predetermined range, the level of the reproduced signal is sensed and the level of the reproduced signal is corrected in a manner which reduces bit error caused by noise in the reproduced signal. Alternatively, the value of a previous video signal value is corrected in accordance with the amount of change in an instant signal value.

公开(公告)号：US5255128A

公开(公告)日：1993-10-19

申请号：US680361

申请日：1991-04-04

申请人： Hajime Inoue ,  Takahito Seki ,  Keiji Kanota

发明人： Hajime Inoue ,  Takahito Seki ,  Keiji Kanota

IPC分类号： G11B20/14 ,  G11B20/10 ,  H03M5/06 ,  H03M13/23 ,  H04N5/926 ,  H04N5/931 ,  G11B5/09

CPC分类号： H04N5/926 ,  G11B20/10009 ,  H04N5/931

摘要： In an apparatus for detecting input digital data, for example, as derived by analog-to-digital conversion of a reproduced binary signal in analog form; a distributor circuit distributes the input digital data into at least two channels, a processing circuit in each channel processes the respective digital data in accordance with a predetermined formula, a decoder in each channel decodes an output of the respective processing circuit in accordance with the Viterbi algorithm, and the outputs of the decoders are composed or combined to provide therefrom a single sequence of digital data.

公开(公告)号：US08244114B2

公开(公告)日：2012-08-14

申请号：US11792395

申请日：2005-11-14

申请人： Toshihiro Ishizaka ,  Osamu Date ,  Takuji Shimoda ,  Takahito Seki ,  Keiji Kanota ,  Makoto Yamada

发明人： Toshihiro Ishizaka ,  Osamu Date ,  Takuji Shimoda ,  Takahito Seki ,  Keiji Kanota ,  Makoto Yamada

IPC分类号： H04N5/93

CPC分类号： H04N19/61 ,  G11B27/329 ,  G11B27/34 ,  G11B2020/10537 ,  H04N5/765 ,  H04N5/772 ,  H04N5/775 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/8047 ,  H04N21/4223 ,  H04N21/43615 ,  H04N21/43622 ,  H04N21/44231 ,  H04N21/8451 ,  H04N21/85406

摘要： The present invention relates to a recoding apparatus and a recording method, a playback apparatus and a playback method, a recording/playback apparatus and a recording/playback method, and a program, whereby processing relating to a file can be readily performed. With a video camera wherein with regard to H.264/AVC for example, which is a coding method arranged to encode or decode data, a codec class arranged to classify the performance of a codec configured to encode or decode data, and a codec level serving as a group of said one or more codec classes whose upper compatibility is ensured, are based on stipulated specifications, data is encoded into, for example, coded data of a codec class #2, for example, within a codec level AVC_A by H.264/AVC. The coded data is recorded in a recording medium, for example, as a file “AVCA0001.MP4” whose file name represents the codec level AVC_A of the coded data. The present invention can be applied to, for example, a video camera from which a recording medium can be detachable.

摘要翻译： 本发明涉及记录装置和记录方法，重放装置和重放方法，记录/重放装置和记录/重放方法以及程序，由此可以容易地进行与文件有关的处理。 使用其中关于H.264 / AVC的摄像机，其是被布置为对数据进行编码或解码的编码方法，被配置为对配置为对数据进行编码或解码的编解码器的性能进行分类的编解码器类和编解码器级 作为确保上兼容性的所述一个或多个编解码器类的一组，基于规定的规范，将数据例如编码到编解码器级＃2的编码数据中，例如在编解码器级AVC_A内由H .264 / AVC。 编码数据被记录在记录介质中，例如，其文件名称表示编码数据的编解码级AVC_A的文件“AVCA0001.MP4”。 本发明可以应用于例如记录介质可从其中拆卸的摄像机。