公开(公告)号：US06211800B1

公开(公告)日：2001-04-03

申请号：US08933734

申请日：1997-09-23

申请人： Naofumi Yanagihara ,  Mari Horiguchi

发明人： Naofumi Yanagihara ,  Mari Horiguchi

IPC分类号： H03M700

CPC分类号： H04L12/40058 ,  G11B27/105 ,  G11B27/3027 ,  G11B2220/2562 ,  H04L12/40117 ,  H04N5/04 ,  H04N5/4401 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8205 ,  H04N21/4147 ,  H04N21/4341 ,  H04N21/43632 ,  H04N21/4402 ,  H04N21/4856

摘要： Data that is an MPEG program stream (PS) read out from a disc is supplied to a PS/TS converter via a variable rate control section. The PS/TS converter converts the PS MPEG data into a transport stream (TS) and transmits it to a presentation device via a 1394 transmission/reception section. Data received by a 1394 transmission/reception section of the presentation device is classified by a DEMUX section. An audio decoder and a video decoder decode the TS MPEG data. D/A converters convert resulting digital data into analog signals and output the analog signals.

摘要翻译： 作为从盘读出的MPEG程序流（PS）的数据通过可变速率控制部分提供给PS / TS转换器。 PS / TS转换器将PS MPEG数据转换成传输流（TS），并通过1394发送/接收部分将其发送到呈现设备。 由显示装置的1394发送/接收部分接收的数据由DEMUX部分分类。 音频解码器和视频解码器解码TS MPEG数据。 D / A转换器将最终的数字数据转换成模拟信号并输出​​模拟信号。

公开(公告)号：US06173114B2

公开(公告)日：2001-01-09

申请号：US08926165

申请日：1997-09-09

申请人： Naofumi Yanagihara ,  Mari Horiguchi

发明人： Naofumi Yanagihara ,  Mari Horiguchi

IPC分类号： H04N5917

CPC分类号： H04N5/775 ,  H04N5/85

摘要： A reproducing apparatus is provided which can reproduce data for decoding without overflowing or underflowing the decoder. Time information contained in the reproduced data is extracted, compared to a reference time and, depending upon such comparison, the reproduction and temporary holding of such data is controlled. Timing of the writing and reading of a temporary storage device (e.g. a FIFO buffer) and timing of the decoder are resettable simultaneously if discontinuous data are reproduced.

摘要翻译： 提供一种再现装置，其可以再现用于解码的数据，而不会使解码器溢出或下溢。 与参考时间相比，提取包含在再现数据中的时间信息，并且根据这样的比较，控制这些数据的再现和临时保持。 临时存储装置（例如FIFO缓冲器）的写入和读取的定时以及解码器的定时可以在不连续数据被再现时同时被重置。

公开(公告)号：US06172989B2

公开(公告)日：2001-01-09

申请号：US08954757

申请日：1997-10-20

申请人： Naofumi Yanagihara ,  Mari Horiguchi ,  Makoto Sato ,  Ichiro Hamada ,  Takehiko Nakano

发明人： Naofumi Yanagihara ,  Mari Horiguchi ,  Makoto Sato ,  Ichiro Hamada ,  Takehiko Nakano

IPC分类号： H04J324

CPC分类号： H04L12/40058 ,  H04L12/40071 ,  H04L12/40117 ,  H04N21/4135 ,  H04N21/4302 ,  H04N21/4325 ,  H04N21/43632

摘要： A transmitting apparatus and method, and a receiving apparatus and method for communicating a pack of 2,048 bytes using the digital interface in accordance with the IEEE 1394 standard. A 4-byte time stamp is added to a 2,048-byte pack of MPEG (Moving Picture Experts Group)-PS (program stream) data. Also, 124 bytes of padding data is added to this pack in order that the overall byte length of data be a multiple of 16. Then the data is divided into a number of fractions which is a multiple of 2 (e.g., 32), thereby being converted into a number of data blocks equal to the number of fractions. Each data block has a byte length of a multiple of 4 (e.g., 68 bytes). A CIP header and the like are added to a predetermined number of the data blocks to form a packet.

摘要翻译： 一种发送装置和方法，以及用于使用根据IEEE 1394标准的数字接口来传送2048字节的数据包的接收装置和方法。 将4字节的时间戳添加到MPEG（运动图像专家组）-PS（节目流）数据的2,048字节的包中。 此外，将124字节的填充数据添加到该包中，以使数据的总字节长度为16的倍数。然后将数据划分为2的倍数（例如32）的数量级，从而 被转换成等于分数的数量的数据块。 每个数据块具有4的倍数的字节长度（例如，68字节）。 将CIP标题等添加到预定数量的数据块中以形成分组。

公开(公告)号：US06370322B2

公开(公告)日：2002-04-09

申请号：US08926416

申请日：1997-09-09

申请人： Mari Horiguchi ,  Harumi Kawamura ,  Naofumi Yanagihara ,  Makoto Sato ,  Ichiro Hamada ,  Takehiko Nakano

发明人： Mari Horiguchi ,  Harumi Kawamura ,  Naofumi Yanagihara ,  Makoto Sato ,  Ichiro Hamada ,  Takehiko Nakano

IPC分类号： H04N591

CPC分类号： H04L12/40058 ,  H04L12/40071 ,  H04L12/40117 ,  H04N5/775 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/888

摘要： The encoded data outputted from a DVD player 1 are outputted to and decoded in the decoders 4-1 to 4-3 of digital television receivers 3-1 to 3-3 through an AV bus 5 comprising the IEEE 1394. When a command for changing a system parameter is inputted to any one of the decoders 4-1 to 4-3, the command corresponding to the change is supplied to the DVD player 1 through the AV bus 5. The DVD player 1 changes the system parameter in response to the command and outputs the system parameter to the respective decoders 4-1 to 4-3 through the AV bus 5. Thereby, the system parameter is changed not only in the DVD player but also in other components.

摘要翻译： 从DVD播放器1输出的编码数据通过包括IEEE 1394的AV总线5输出到数字电视接收机3-1至3-3的解码器4-1至4-3中并被解码。当改变命令 系统参数被输入到解码器4-1至4-3中的任何一个，通过AV总线5将对应于该改变的命令提供给DVD播放器1. DVD播放器1响应于 命令，并通过AV总线5将系统参数输出到相应的解码器4-1至4-3。因此，系统参数不仅在DVD播放器中而且在其他组件中改变。

公开(公告)号：US6137949A

公开(公告)日：2000-10-24

申请号：US918699

申请日：1997-08-21

申请人： Mari Horiguchi ,  Naofumi Yanagihara

发明人： Mari Horiguchi ,  Naofumi Yanagihara

IPC分类号： G11B20/10 ,  G11B20/00 ,  H04L12/40 ,  H04L12/70 ,  H04L25/02 ,  H04N5/91 ,  H04N7/24 ,  H04N7/52

CPC分类号： H04N21/43632 ,  H04N21/42646

摘要： DVD reproducing apparatus which transmits variable-bit rate data on a digital serial bus having a predetermined transmission rate. The apparatus employs a reproducing device to reproduce data from a record medium in accordance with a control signal to produce variable rate data. The control signal is generated on the basis of at least two buffer storage state indicators corresponding to respective data buffers, one of which is incorporated into the reproducing device. The peak data rate of the variable rate data is detected, a rate of transmission of the variable rate data is established in accordance with the detected peak data rate, and the variable rate data is transmitted in accordance with the established transmission rate.

摘要翻译： DVD再现装置，其在具有预定传输速率的数字串行总线上传送可变比特率数据。 该装置采用再现装置根据控制信号从记录介质再现数据，以产生可变速率数据。 基于对应于各个数据缓冲器的至少两个缓冲存储状态指示符产生控制信号，其中一个缓冲存储状态指示符被并入再现设备。 检测可变速率数据的峰值数据速率，根据检测到的峰值数据速率建立可变速率数据的传输速率，并且根据建立的传输速率发送可变速率数据。

公开(公告)号：US06763037B1

公开(公告)日：2004-07-13

申请号：US09461248

申请日：1999-12-15

申请人： Naofumi Yanagihara ,  Mari Horiguchi ,  Makoto Sato ,  Ichiro Hamada ,  Takehiko Nakano

发明人： Naofumi Yanagihara ,  Mari Horiguchi ,  Makoto Sato ,  Ichiro Hamada ,  Takehiko Nakano

IPC分类号： H04J324

CPC分类号： H04L12/40058 ,  H04L12/40071 ,  H04L12/40117 ,  H04N21/23602 ,  H04N21/4342 ,  H04N21/43615 ,  H04N21/43632

摘要： A transmitting apparatus and method, and a receiving apparatus and method for communicating a pack of 2,048 bytes using the digital interface in accordance with the IEEE 1394 standard. A 4-byte time stamp is added to a 2,048-byte pack of MPEG (Moving Picture Experts Group)—PS (program stream) data. Also, 124 bytes of padding data is added to this pack in order that the overall byte length of data be a multiple of 16. Then the data is divided into a number of fractions which is a multiple of 2 (e.g., 32), thereby being converted into a number of data blocks equal to the number of fractions. Each data block has a byte length of a multiple of 4 (e.g., 68 bytes). A CIP header and the like are added to a predetermined number of the data blocks to form a packet.

摘要翻译： 一种发送装置和方法，以及用于使用根据IEEE 1394标准的数字接口来传送2048字节的数据包的接收装置和方法。 将4字节的时间戳添加到MPEG（运动图像专家组）-PS（节目流）数据的2,048字节的包中。 此外，将124字节的填充数据添加到该包中，以使数据的总字节长度为16的倍数。然后将数据划分为2的倍数（例如32）的数量级，从而 被转换成等于分数的数量的数据块。 每个数据块具有4的倍数的字节长度（例如，68字节）。 将CIP标题等添加到预定数量的数据块中以形成分组。

公开(公告)号：US06442208B1

公开(公告)日：2002-08-27

申请号：US08909391

申请日：1997-08-11

申请人： Mari Horiguchi ,  Naofumi Yanagihara

发明人： Mari Horiguchi ,  Naofumi Yanagihara

IPC分类号： H04B300

CPC分类号： H04N21/43632 ,  G11B20/10 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N21/4325 ,  H04N21/4341 ,  H04N21/44227

摘要： DVD reproducing apparatus which transmits variable-bit rate data on a digital serial bus having a predetermined transmission rate. The DVD reproducing apparatus reproduces data from a record medium in accordance with a control signal to produce variable rate data. The data rate of the variable rate data is detected at predetermined intervals of time, a rate of transmission of the variable rate data is established in accordance with the detected data rate, and the variable rate data is transmitted in accordance with the established transmission rate. The DVD reproducing apparatus includes an MPEG decoder which MPEG decodes the reproduced data and which generates the control signal in accordance with amounts of data stored within various buffers, such control signal being utilized to control the reproduction of the data from the record medium. A receiver, e.g., a digital television, having an MPEG decoder therein receives the transmitted data and MPEG decodes the data, but such MPEG decoder does not generate a control signal similar to the previously generated control signal in order to prevent underflow/overflow of the memories therein. In another embodiment, the DVD reproducing apparatus does not include therein an MPEG decoder, but the receiving device's MPEG decoder, unlike the first mentioned embodiment, generates a control signal that is transmitted back to the DVD reproducing apparatus in order to prevent underflow/overflow of the memories within the receiving device's MPEG decoder.

摘要翻译： DVD再现装置，其在具有预定传输速率的数字串行总线上传送可变比特率数据。 DVD再现装置根据控制信号从记录介质再现数据，以产生可变速率数据。 以预定的时间间隔检测可变速率数据的数据速率，根据检测到的数据速率建立可变速率数据的传输速率，并且根据建立的传输速率发送可变速率数据。 DVD再现装置包括MPEG解码器，MPEG解码再现数据，并且根据存储在各种缓冲器内的数据量生成控制信号，该控制信号用于控制从记录介质再现数据。 具有MPEG解码器的接收机，例如数字电视接收所发送的数据，并对数据进行MPEG解码，但是这样的MPEG解码器不产生类似于先前产生的控制信号的控制信号，以便防止下溢/溢出 其中的记忆 在另一个实施例中，DVD再现设备在其中不包括MPEG解码器，但是与第一个提到的实施例不同，接收设备的MPEG解码器生成被发送回DVD再现设备的控制信号，以防止下溢/溢出 在接收设备的MPEG解码器内的存储器。

公开(公告)号：US06233393B1

公开(公告)日：2001-05-15

申请号：US08932129

申请日：1997-09-18

申请人： Naofumi Yanagihara ,  Mari Horiguchi

发明人： Naofumi Yanagihara ,  Mari Horiguchi

IPC分类号： H04N5781

CPC分类号： H04L12/40058 ,  H04L12/40117 ,  H04N5/765 ,  H04N5/775 ,  H04N5/85 ,  H04N21/42646 ,  H04N21/4307 ,  H04N21/4325

摘要： In a system having a digital video disc (DVD) player and a number of presentation devices (such as a television receiver, video cassette recorder/reproducer, and so forth), the DVD player may transmit presentation data and a portion of control or navigation data obtained from a digital video disc (DVD) to a desired one of the presentation devices in an isochronous communication manner so as to enable the respective presentation device to process or decode the presentation data in accordance with the transmitted portion of the navigation data without substantial time delays (or in real time). The remaining portion of the navigation data (which is not utilized in such real time processing) may be transmitted from the DVD player to the respective presentation device in an asynchronous communication manner. Such arrangement of isochronous and asynchronous communication enables processing to be performed by the respective presentation device so as to reduce the amount of processing which may otherwise have to be performed by the DVD player.

摘要翻译： 在具有数字视频盘（DVD）播放器和多个呈现装置（诸如电视接收机，录像机/再现器等）的系统中，DVD播放器可以发送呈现数据和一部分控制或导航 从数字视频盘（DVD）获得的数据以等时通信方式从所述显示设备中的所需一个获得，以使得相应的显示设备能够根据导航数据的发送部分来处理或解码显示数据， 时间延迟（或实时）。 导航数据的剩余部分（在这种实时处理中未被使用）可以以异步通信的方式从DVD播放器发送到相应的呈现设备。 这种同步和异步通信的布置使得能够由相应的呈现设备执行处理，以便减少否则DVD播放器可能执行的处理量。

公开(公告)号：US06687296B1

公开(公告)日：2004-02-03

申请号：US09708255

申请日：2000-11-07

申请人： Kazushi Sato ,  Yu Liu ,  Naofumi Yanagihara

发明人： Kazushi Sato ,  Yu Liu ,  Naofumi Yanagihara

IPC分类号： H04N726

CPC分类号： H04N19/40 ,  H04N19/132 ,  H04N19/149 ,  H04N19/152 ,  H04N19/177 ,  H04N19/186 ,  H04N19/523 ,  H04N19/61

摘要： An apparatus and a method for transforming picture information can significantly reduce the bit rate. A picture information transform apparatus for receiving as input the compressed picture information obtained by coding the picture information of a plurality of picture type images by ways of orthogonal transform and motion compensation includes a variable length decoder 4 for performing a variable length decoding operation on the input compressed picture information, an inverse quantizer 5 for inversely quantizing the decoded information, a band limiter 7 for limiting the bandwidth, a quantizer 8 and a bit rate controller 9 for computationally determining the target bits for the coded images of each picture type by adaptively using a plurality of parameters operating as coefficients for the contents of the coded images of the picture type on the bais of the contents of the coded images of the picture type.

摘要翻译： 用于变换图像信息的装置和方法可以显着地降低比特率。 一种图像信息变换装置，用于作为输入接收通过正交变换和运动补偿的方式对多个图像类型图像的图像信息进行编码而获得的压缩图像信息，包括：可变长度解码器4，用于对输入进行可变长度解码操作 压缩图像信息，用于对解码信息进行逆量化的逆量化器5，用于限制带宽的频带限制器7，量化器8和比特率控制器9，用于通过自适应地使用每个图像类型的编码图像计算确定目标比特 作为图像类型的编码图像的内容的bais上的图像类型的编码图像的内容的系数的多个参数。

公开(公告)号：US06532309B1

公开(公告)日：2003-03-11

申请号：US09450614

申请日：1999-11-30

申请人： Kazushi Sato ,  Naofumi Yanagihara

发明人： Kazushi Sato ,  Naofumi Yanagihara

IPC分类号： G06K936

CPC分类号： H04N19/112 ,  G06T3/4084 ,  H04N19/45 ,  H04N19/60

摘要： In a pixel decoding method and apparatus, pixel dephasing caused for the field DCT mode and the frame DCT mode is to be eliminated to curtail the processing volume without detracting from the properties inherent in a picture produced on interlaced scanning. To this end, if the DCT mode is the field mode, a decimating DCT device for field mode 14 performs 4×4 decimating IDCT. If the DCT mode is the frame mode, the decimating DCT device for frame mode 15 performs IDCT on the totality of coefficients of the DCT block, separates the coefficients into two pixel blocks associated with the interlaced scanning and performs DCT separately for the separated two pixel blocks. The low frequency components of these two pixel blocks are IDCT and the two pixel are synthesized.

摘要翻译： 在像素解码方法和装置中，消除对于场DCT模式和帧DCT模式引起的像素去相位，以减少处理量，而不会降低隔行扫描中产生的图像中固有的属性。 为此，如果DCT模式是场模式，则场模式14的抽取DCT装置执行4×4抽取IDCT。 如果DCT模式是帧模式，则用于帧模式15的抽取DCT设备对DCT块的系数的总和执行IDCT，将系数分离成与隔行扫描相关联的两个像素块，并分离对分离的两个像素进行DCT 块。 这两个像素块的低频分量是IDCT，并且两个像素被合成。