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1. 发明申请

US20060280480A1 Data processing device and data recording method 审中-公开
标题翻译：数据处理装置和数据记录方法
公开(公告)号：US20060280480A1
公开(公告)日：2006-12-14
申请号：US11504151
申请日：2006-08-15
申请人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
发明人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
IPC分类号： H04N7/00
CPC分类号： H04N9/8042 , H04N5/781 , H04N5/783 , H04N9/7921 , H04N9/8063
摘要： A data processing device includes a video input/output circuit for inputting an input video signal and outputting an output video signal. A detection circuit detects a first synchronizing signal in the input video signal input. Using a second synchronizing signal different from the first synchronizing signal, the video input/output circuit outputs the output video signal. The data processing device further includes a storage medium, a controller and an audio input circuit for inputting an audio signal using the second synchronizing signal. The controller controls recording of the inputted audio signal through the audio input circuit and recording of the output video signal onto the storage medium, such that the inputted audio signal and the output video signal are synchronized by the second synchronizing signal.
摘要翻译：数据处理装置包括用于输入输入视频信号并输出输出视频信号的视频输入/输出电路。检测电路检测输入视频信号输入中的第一同步信号。使用与第一同步信号不同的第二同步信号，视频输入/输出电路输出输出视频信号。数据处理装置还包括存储介质，控制器和用于使用第二同步信号输入音频信号的音频输入电路。控制器控制通过音频输入电路输入的音频信号的记录，并将输出视频信号记录到存储介质上，使得输入的音频信号和输出视频信号由第二同步信号同步。

2. 发明授权

US07113692B2 Data processing device and data recording method 失效
公开(公告)号：US07113692B2
公开(公告)日：2006-09-26
申请号：US09809941
申请日：2001-03-16
申请人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
发明人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
IPC分类号： H04N5/95
CPC分类号： H04N9/8042 , H04N5/781 , H04N5/783 , H04N9/7921 , H04N9/8063
摘要： A recording/reproducing device has an NTSC decoder which receives a video signal and outputs a video signal, an MPEG audio encoder which receives an audio signal and outputs an audio signal, and a synchronous control circuit which detects a synchronizing signal from the video signal input to the NTSC decoder and uses that signal to generate an output synchronizing signal that is different from the input synchronizing signal. The output synchronizing signal is used to output the video signal from the NTSC decoder. In the recording/reproducing device, the NTSC decoder and the MPEG audio encoder provide a delay to the input video signal and audio signal, respectively, and output the video signal and audio signal in accordance with the output synchronizing signal generated by the synchronous control circuit.

3. 发明授权

US5841938A Data reproducing method and data reproducing apparatus 失效
标题翻译：数据再现方法和数据再现装置
公开(公告)号：US5841938A
公开(公告)日：1998-11-24
申请号：US520838
申请日：1995-08-29
申请人： Hajime Nitta , Kiyoshi Ota
发明人： Hajime Nitta , Kiyoshi Ota
IPC分类号： H04N5/907 , G06F5/06 , G11B20/10 , H04N5/783 , H04N5/85 , H04N5/92 , H04N5/937 , H04N9/804 , H04N9/877 , H04N19/102 , H04N19/162 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/50 , H04N19/51 , H04N19/625 , H04N19/65 , H04N19/70 , H04N19/85 , H04N19/89 , H04N19/91 , H04N5/91 , H04N5/917
CPC分类号： H04N9/877 , H04N5/783 , H04N5/85 , H04N9/8042
摘要： Decoding data in a special mode is provided without frequent access to a disk. The reproduced data, corresponding to encoded video frames, is written to a storage memory during a normal mode. Attribute information is stored for each encoded video frame which includes the type of encoding for each encoded video frame and its position within the storage memory. In a special mode, encoded video frames are read from the storage memory in a special sequence. Encoded video frames needed to decode a respective encoded video frame are selectively read from the storage memory according to the attribute information. It becomes unnecessary in the present invention, therefore, to reproduce the data necessary for decoding during a special mode, thereby shortening access to the disk and smoothing reproduction of the encoded video frames during the special mode.
摘要翻译：提供特殊模式下的数据解码，而不经常访问磁盘。对应于编码视频帧的再现数据在正常模式期间被写入存储存储器。为每个编码的视频帧存储属性信息，其包括每个编码视频帧的编码类型及其在存储存储器内的位置。在特殊模式下，以特殊顺序从存储器读取编码视频帧。根据属性信息从存储存储器中选择性地读取对相应编码视频帧进行解码所需的编码视频帧。因此，在本发明中，为了再现在特殊模式期间解码所需的数据，因此在特殊模式期间缩短对盘的访问和平滑再现编码视频帧，因此变得不必要。

4. 发明授权

US06757484B2 Data recording/reproducing device 失效
标题翻译：数据记录/再现装置
公开(公告)号：US06757484B2
公开(公告)日：2004-06-29
申请号：US09812167
申请日：2001-03-19
申请人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
发明人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
IPC分类号： H04N591
CPC分类号： H04N9/8042 , H04N5/781 , H04N9/7921 , H04N9/8063
摘要： A system for recording an input video signal input to an A/D conversion processing section on a recording medium in accordance with a recording clock generated by a recording system synchronous control section, and for outputting the video signal recorded on the recording medium to outside in accordance with a reproducing system synchronous control section. When switching and outputting a recording video signal input to the A/D conversion processing section and a reproduction video signal recorded on the recording medium and then decoded and output by an MPEG AV decoder, the recording video signal is temporarily stored in a frame synchronizer, and the recording video signal stored in the frame synchronizer and the reproduction video signal decoded by the MPEG AV decoder are switched and output in accordance with a reproduction clock generated by the reproducing system synchronous control section.
摘要翻译：一种用于根据由记录系统同步控制部产生的记录时钟将输入到A / D转换处理部分的输入视频信号记录在记录介质上并将记录在记录介质上的视频信号输出到外部的系统符合再现系统同步控制部分。当切换和输出输入到A / D转换处理部分的记录视频信号和记录在记录介质上的再现视频信号，然后由MPEG AV解码器解码和输出时，记录视频信号被临时存储在帧同步器中，并且存储在帧同步器中的记录视频信号和由MPEG AV解码器解码的再现视频信号根据由再现系统同步控制部分生成的再现时钟被切换和输出。

5. 发明授权

US5920529A Method and apparatus for reproducing data recorded in a recording medium on a sector basis 失效
标题翻译：用于在扇区的基础上再现记录在记录介质中的数据的方法和装置
公开(公告)号：US5920529A
公开(公告)日：1999-07-06
申请号：US940283
申请日：1997-09-30
申请人： Kiyoshi Ota , Hajime Nitta , Toshiyuki Ishii
发明人： Kiyoshi Ota , Hajime Nitta , Toshiyuki Ishii
IPC分类号： H04N5/92 , G11B20/00 , G11B20/10 , G11B27/10 , G11B27/30 , H04N5/781 , H04N5/85 , H04N5/93 , H04N5/937 , H04N9/804 , H04N9/877 , H04N19/00 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/65 , H04N19/70 , H04N19/85 , H04N19/89 , G11B5/09
CPC分类号： G11B27/105 , G11B20/10527 , G11B27/3027 , H04N19/89 , H04N9/877 , G11B20/00007 , G11B2220/2525 , G11B2220/2562 , H04N5/781 , H04N5/85 , H04N9/8042
摘要： A method and apparatus for reproducing data recorded in a sector basis from a recording medium. The data recorded in each sector may include audio and/or video data and the data of each sector may be arranged in one or more packets wherein each packet may include a packet start code and a stream identification code located at the beginning of the respective packet which may indicate whether audio or video data is included in the respective packet and/or the type of data included therein. Sector information associated with the sector is detected from the read data. Writing and reading operations of the data read from the recording medium into and from a memory are controlled based on the detected information. As a result, the time required to recover from the occurrence of an error may be reduced.
摘要翻译：一种用于从记录介质再现以扇区为基础记录的数据的方法和装置。记录在每个扇区中的数据可以包括音频和/或视频数据，并且每个扇区的数据可以被布置成一个或多个分组，其中每个分组可以包括分组起始码和位于相应分组的开头的流识别码其可以指示音频或视频数据是否包括在相应的分组中和/或其中包括的数据的类型。从读取的数据检测与扇区相关联的扇区信息。基于检测到的信息来控制从记录介质读取和从存储器读取的数据的写入和读取操作。结果，可以减少从发生错误中恢复所需的时间。

6. 发明授权

US07496675B2 Data multiplexer, data multiplexing method, and recording medium 失效
标题翻译：数据复用器，数据复用方法和记录介质
公开(公告)号：US07496675B2
公开(公告)日：2009-02-24
申请号：US09824367
申请日：2001-04-02
申请人： Koji Obata , Noriaki Oishi , Tomoyuki Sato , Hajime Nitta , Kiyoshi Ota
发明人： Koji Obata , Noriaki Oishi , Tomoyuki Sato , Hajime Nitta , Kiyoshi Ota
IPC分类号： G06F15/16 , H06J3/24 , H06N7/12
CPC分类号： H04N21/23406 , G11B20/10527 , H04N7/52 , H04N21/44004
摘要： FIG. 3B shows buffer occupancy rate of a transport stream buffer 21 when a TS packet is transferred to the transport stream buffer 21 having a transport rate Rt and a leak rate Rx. A time T1 during which the buffer occupancy rate of the transport stream buffer 21 increases and a time T2 during which the buffer occupancy rate of the transport stream buffer 21 decreases are expressed by (Rt−Rx)×T1=Rx×T2 and T1=(188×8)/Rt. A time T is T=T1+T2=(188×8)/Rx. Therefore, the time T is equal to a time T′ shown in FIG. 3C. Thus, when a TS packet is transferred in a cycle of the time T′, the transport stream buffer 21 will not overflow and the transport stream buffer 21 becomes empty at least once a second, whereby simulation for the transport stream buffer 21 is not required in the simulation for the T-STD model.
摘要翻译：图。图3B示出了当TS分组被传送到具有传输速率Rt和泄漏速率Rx的传输流缓冲器21时的传输流缓冲器21的缓冲器占用率。传输流缓冲器21的缓冲器占用率增加的时间T1和传输流缓冲器21的缓冲器占用率减小的时间T2由（Rt-Rx）xT1 = RxxT2和T1 =（188×8）表示， / Rt。时间T为T = T1 + T2 =（188x8）/ Rx。因此，时间T等于图1所示的时间T'。 3C。因此，当在时间T'的周期中传送TS分组时，传输流缓冲器21将不会溢出，并且传输流缓冲器21至少一秒钟变空，由此不需要传输流缓冲器21的模拟在T-STD模型的模拟中。

7. 发明授权

US6009231A Reproduction of information using a ring buffer with read and write pointers separated from each other by substantially half of the total ring buffer capacity 失效
标题翻译：使用环形缓冲器复制信息，读取和写入指针以总环形缓冲区容量的大约一半相互分开
公开(公告)号：US6009231A
公开(公告)日：1999-12-28
申请号：US954909
申请日：1997-10-21
申请人： Nobuyuki Aoki , Daisuke Hiranaka , Hajime Nitta , Kiyoshi Ota
发明人： Nobuyuki Aoki , Daisuke Hiranaka , Hajime Nitta , Kiyoshi Ota
IPC分类号： G11B20/10 , G11B27/00 , G11B27/10 , H04N5/783 , H04N5/85 , H04N9/804 , H04N9/877
CPC分类号： G11B20/10527 , G11B27/005 , G11B27/105 , H04N9/877 , G11B2020/10666 , G11B2220/2562 , H04N5/783 , H04N5/85 , H04N9/8042
摘要： A data reproducing method and apparatus for providing special reproductions such as a reverse reproduction quickly when it is specified. In the data reproducing apparatus comprising a demodulator for demodulating data read out of a digital video disk by a pickup, a buffer for temporarily storing the demodulated data and a decoder for decoding the data read out of the buffer into original video signals, further included is a control circuit for controlling the buffer so that an unread data area and an already-read data area in the buffer take about half of the total memory capacity, respectively. As a result, the data necessary for reverse reproduction or the like is present in the buffer, allowing the special reproduction to run quickly.
摘要翻译：一种数据再现方法和装置，用于当指定时提供诸如反向再现的特殊复制。在包括用于解调由拾取器从数字视盘读出的数据的解调器的数据再现装置中，还包括用于临时存储解调数据的缓冲器和用于将从缓冲器读出的数据解码为原始视频信号的解码器，用于控制缓冲器的控制电路，使得缓冲器中的未读取数据区域和已读取的数据区域分别占总存储器容量的大约一半。结果，反向再现等所需的数据存在于缓冲器中，允许特殊的再现快速运行。

8. 发明授权

US5771331A Reproduction of information using a ring buffer with read and write pointers separated from each other by substantially half of the total ring buffer capacity 失效
公开(公告)号：US5771331A
公开(公告)日：1998-06-23
申请号：US520837
申请日：1995-08-29
申请人： Nobuyuki Aoki , Daisuke Hiranaka , Hajime Nitta , Kiyoshi Ota
发明人： Nobuyuki Aoki , Daisuke Hiranaka , Hajime Nitta , Kiyoshi Ota
IPC分类号： G11B27/00 , G11B27/10 , H04N5/783 , H04N5/85 , H04N9/804 , H04N9/877
CPC分类号： H04N9/877 , G11B27/005 , G11B27/105 , G11B2220/2562 , H04N5/783 , H04N5/85 , H04N9/8042
摘要： A data reproducing method and apparatus for providing special reproductions such as a reverse reproduction quickly when it is specified. In the data reproducing apparatus comprising a demodulator for demodulating data read out of a digital video disk by a pickup, a buffer for temporarily storing the demodulated data and a decoder for decoding the data read out of the buffer into original video signals, further included is a control circuit for controlling the buffer so that an unread data area and an already-read data area in the buffer take about half of the total memory capacity, respectively. As a result, the data necessary for reverse reproduction or the like is present in the buffer, allowing the special reproduction to run quickly.

9. 发明授权

US5751887A Apparatus and method of decoding data groups of pictures 失效
标题翻译：解码图像数据组的装置和方法
公开(公告)号：US5751887A
公开(公告)日：1998-05-12
申请号：US598727
申请日：1996-02-08
申请人： Hajime Nitta , Kiyoshi Ota
发明人： Hajime Nitta , Kiyoshi Ota
IPC分类号： H04N5/765 , G11B20/10 , H03M7/00 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/92 , H04N5/937 , H04N9/804 , H04N9/877
CPC分类号： H04N9/877 , G11B20/10527 , G11B2020/10666 , H04N5/783 , H04N5/85 , H04N9/8042
摘要： Data decoding decodes data reproduced from a record medium and stored in a memory. Since decoding requires a sufficient amount of data to be stored in memory especially when the data is, for example, predictively encoded, a system controller is provided which inhibits previously read data from being overwritten in memory. Thus, when a reverse reproduction operation is suddenly initiated during a forward reproduction operation, a sufficient amount of data is reserved in the memory for decoding the data in the reverse direction. Similarly, the system controller inhibits the memory from writing over previously read data during a reverse reproduction and a sufficient amount of data is reserved for decoding when forward reproduction is resumed.
摘要翻译：数据解码解码从记录介质再现并存储在存储器中的数据。由于解码需要将足够数量的数据存储在存储器中，特别是当数据例如被预测编码时，提供禁止先前读取的数据被重写在存储器中的系统控制器。因此，当在正向再现操作期间突然启动反向再现操作时，在存储器中保留足够数量的数据以在相反方向上对数据进行解码。类似地，系统控制器在反向再现期间禁止存储器写入先前读取的数据，并且当正向再现被恢复时，保留足够量的数据用于解码。

10. 发明授权

US06363208B1 Digital signal reproduction method and apparatus 失效
公开(公告)号：US06363208B1
公开(公告)日：2002-03-26
申请号：US09037227
申请日：1998-03-10
申请人： Hajime Nitta , Akira Hasegawa
发明人： Hajime Nitta , Akira Hasegawa
IPC分类号： H04N5928
摘要： A system and method for performing high-speed reproduction of compressed video/audio data. High-speed reproduction is controlled such that only a portion of the data contained in each of the smallest possible data reproduction units is reproduced, and such that only the portion of the audio data which is contained in each of the smallest possible data reproduction units is reproduced.

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