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    Data transmission device and data transmission method
    51.
    发明申请
    Data transmission device and data transmission method 审中-公开
    数据传输设备和数据传输方式

    公开(公告)号：US20060050820A1

    公开(公告)日：2006-03-09

    申请号：US10539235

    申请日：2004-02-10

    申请人： Hirotsugu Kawada ,  Yoshiyuki Saito ,  Osamu Shibata ,  Hiroshi Suenaga ,  Takahisa Sakai ,  Toshitomo Umei ,  Takashi Akita ,  Yuji Mizuguchi ,  Noboru Katta

    发明人： Hirotsugu Kawada ,  Yoshiyuki Saito ,  Osamu Shibata ,  Hiroshi Suenaga ,  Takahisa Sakai ,  Toshitomo Umei ,  Takashi Akita ,  Yuji Mizuguchi ,  Noboru Katta

    IPC分类号： H04L7/00

    CPC分类号： H04L7/00 ,  H04L7/0334

    摘要： A signal receiver (11) receives an analog signal via a twisted pair cable (31). An A/D converter (12) converts the analog signal to a digital signal. A phase detection unit (14) detects the phase of the digital signal, and generates a reception timing signal. A transmission timing generation unit (15) controls, based on the reception timing signal, timing for a transmission processing unit (16) to output the digital signal such that the reception signal (point A) and a transmission signal (point D) are different in phase by a predetermined degree. The transmission processing unit (16) outputs, in accordance with the timing, a digital signal obtained by performing mapping on data inputted from a connection device (20). A D/A converter (17) converts the digital signal to an analog signal. A signal transmitter (18) transmits the analog signal via a twisted pair cable (32).

    摘要翻译： 信号接收器（11）经由双绞线电缆（31）接收模拟信号。 A / D转换器（12）将模拟信号转换成数字信号。 相位检测单元（14）检测数字信号的相位，并产生接收定时信号。 发送定时生成单元（15）基于接收定时信号，控制发送处理单元（16）输出数字信号的定时，使得接收信号（点A）和发送信号（点D）不同 同时预定的程度。 发送处理单元（16）根据定时输出通过对从连接装置（20）输入的数据进行映射而获得的数字信号。 D / A转换器（17）将数字信号转换成模拟信号。 信号发送器（18）经由双绞线电缆（32）发送模拟信号。

    Data transmission device, data transmission system, and method
    53.
    发明申请
    Data transmission device, data transmission system, and method 审中-公开
    数据传输设备，数据传输系统和方法

    公开(公告)号：US20050265262A1

    公开(公告)日：2005-12-01

    申请号：US10529251

    申请日：2003-12-24

    申请人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

    发明人： Yuji Mizuguchi ,  Nobuhiko Yasui ,  Noboru Katta ,  Takahisa Sakai ,  Yutaka Takahira ,  Hirotsugu Kawada ,  Toshitomo Umei ,  Takashi Akita

    IPC分类号： H04L12/42 ,  H04L12/28

    CPC分类号： H04L12/10 ,  H04L12/40039 ,  H04L12/42 ,  H04L2012/40273

    摘要： A data transmission device (1) includes a controller (2), a reception section (5), a transmission section (6), and an MPU (3). The reception section (5) receives an electric signal sent from a preceding device, and outputs its data to the controller (2). The transmission section (6) converts a result of a process by the controller (2) into an electric signal and transmits it to a successive device. The MPU (3) controls operation of the controller (2), the reception section (5), and the transmission section (6) in accordance with the operation mode of the device. The reception section (5) detects cessation of the electric signal sent from the preceding device and, in response to the detection, stops operating. In response to the detection, the transmission section (6) stops operating and stops sending the electric signal to the successive device.

    摘要翻译： 数据传输装置（1）包括控制器（2），接收部分（5），传输部分（6）和MPU（3）。 接收部（5）接收从前一装置发送的电信号，并将其数据输出到控制器（2）。 发送部（6）将控制器（2）的处理结果转换成电信号，并将其发送到连续的装置。 MPU（3）根据设备的操作模式控制控制器（2），接收部分（5）和传输部分（6）的操作。 接收部（5）检测从前一装置发送的电信号的停止，并且响应于该检测停止操作。 响应于检测，发送部分（6）停止操作并停止向连续的设备发送电信号。

    Communication device
    54.
    发明授权
    Communication device 失效
    通讯设备

    公开(公告)号：US06839006B1

    公开(公告)日：2005-01-04

    申请号：US10771062

    申请日：2004-02-04

    申请人： Takahisa Sakai ,  Yuji Mizuguchi ,  Toshitomo Umei ,  Noboru Katta

    发明人： Takahisa Sakai ,  Yuji Mizuguchi ,  Toshitomo Umei ,  Noboru Katta

    IPC分类号： H04L25/32 ,  H03M5/12 ,  H03M5/20 ,  H03M7/12 ,  H04L25/49

    CPC分类号： H03M5/12 ,  H03M5/20 ,  H04L25/4904

    摘要： An S/P converter 120 converts input data from serial to parallel for every two bits in different timings, thereby outputting two types of parallel data. Based on the input data, a timing detector 130 detects a timing which corresponds to boundaries between bits of a data portion before biphase encoding. Based on the detection result of the timing detector, a selector 140 selects either one of the two types of parallel data output from the S/P converter 120.

    摘要翻译： S / P转换器120在不同的定时将输入数据从串行转换为每两比特并行，从而输出两种并行数据。 基于输入数据，定时检测器130检测对应于双相编码之前的数据部分的位之间的边界的定时。 基于定时检测器的检测结果，选择器140选择从S / P转换器120输出的两种并行数据中的一种。

    Apparatus and method for coding moving picture
    55.
    发明授权
    Apparatus and method for coding moving picture 失效
    用于编码运动图像的装置和方法

    公开(公告)号：US06408027B2

    公开(公告)日：2002-06-18

    申请号：US09733950

    申请日：2000-12-12

    申请人： Toshiaki Mori ,  Susumu Ibaraki ,  Noboru Katta

    发明人： Toshiaki Mori ,  Susumu Ibaraki ,  Noboru Katta

    IPC分类号： H04N712

    CPC分类号： H04N19/174 ,  H04N19/115 ,  H04N19/12 ,  H04N19/126 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61 ,  H04N19/91

    摘要： The present invention provides an apparatus and method for coding moving pictures, which reduces a delay time generated by buffering of a decoding apparatus in compressive coding of the moving pictures. In this invention, the target number of bits of one picture P as a target value of the number of generated bits per one picture is set as well as the upper limit number of bits uCg as an upper limit value of the number of generated bits of the picture is set. Then, when the cumulative number of generated bits Cg generated from the first macroblock to a macroblock which is being coded in the picture exceeds the upper limit number of bits uCg in the middle of the picture which is being coded, the coding of a macroblock is skipped to avoid underflow. When the cumulative number of generated bits Cg does not reach the target number of bits of one picture P after the picture has been coded to the end, the stuffing is performed so that the cumulative number of generated bits of one picture Cg reaches the target number of bits of one picture P.

    摘要翻译： 本发明提供了一种用于编码运动图像的装置和方法，其减少了在运动图像的压缩编码中解码装置的缓冲产生的延迟时间。 在本发明中，将作为每个图像的生成位数的目标值的一个图像P的目标位数设定为位数uCg的上限值，作为生成位数的上限值 图片设置。 然后，当从第一宏块生成的生成比特数Cg到在图像中被编码的宏块的累积数量超过正被编码的图片中间的上限位数uCg时，宏块的编码是 跳过以避免下溢。 当生成位Cg的累积数量在图像编码结束之后未达到一个图像P的目标位数时，执行填充，使得一个图像Cg的生成位的累积数达到目标数 的一个图片的位

    Audio scrambling system for scrambling and descrambling audio signals
    58.
    发明授权
    Audio scrambling system for scrambling and descrambling audio signals 失效
    用于加扰和解扰音频信号的音频加扰系统

    公开(公告)号：US5668879A

    公开(公告)日：1997-09-16

    申请号：US619236

    申请日：1996-03-21

    申请人： Susumu Ibaraki ,  Noboru Katta ,  Seiji Nakamura ,  Hiroki Murakami

    发明人： Susumu Ibaraki ,  Noboru Katta ,  Seiji Nakamura ,  Hiroki Murakami

    IPC分类号： H04K1/02 ,  H04K1/00 ,  H04M1/68

    CPC分类号： H04K1/02

    摘要： A scrambling system includes a scrambling apparatus and a descrambling apparatus for scrambling and descrambling digital audio codes having plural sub-band units. Each sub-band unit includes at least a scale factor and a quantized sample data which is quantized after scaling with the scale factor. In the scrambling apparatus, a sample period during which the quantized sample data is present is detected, and only the quantized sample data is scrambled at the sample period. In particular, the quantized sample data and data other than the quantized sample data are separated, and the separated quantized sample data is applied to a scrambler, and the other data is applied to a delay circuit. The separated and scrambled quantized sample data and the delayed data are synthesized. The descrambling apparatus also detects a sample period during which the quantized sample data is present, and descrambles only the scrambled quantized sample data at the sample period.

    摘要翻译： 加扰系统包括加扰装置和用于对具有多个子带单元的数字音频码进行加扰和解扰的解扰装置。 每个子带单元至少包括比例因子和量化后的样本数据，该样本数据在缩放比例因子后进行量化。 在加扰装置中，检测存在量化采样数据的采样周期，并且仅在采样周期对量化的采样数据进行加扰。 特别地，量化的采样数据和除了量化的采样数据之外的数据被分离，并且将分离的量化采样数据应用于扰频器，并且将另一数据应用于延迟电路。 分离和加扰量化的样本数据和延迟数据被合成。 解扰装置还检测存在量化样本数据的采样周期，并且在采样周期仅解扰加扰的量化样本数据。

    Audio scrambling system for scrambling and descrambling audio signals
    59.
    发明授权
    Audio scrambling system for scrambling and descrambling audio signals 失效
    用于加扰和解扰音频信号的音频加扰系统

    公开(公告)号：US5617476A

    公开(公告)日：1997-04-01

    申请号：US321766

    申请日：1994-10-12

    申请人： Susumu Ibaraki ,  Noboru Katta ,  Seiji Nakamura ,  Hiroki Murakami

    发明人： Susumu Ibaraki ,  Noboru Katta ,  Seiji Nakamura ,  Hiroki Murakami

    IPC分类号： H04K1/02 ,  H04L9/00 ,  H04N7/117

    CPC分类号： H04K1/02

    摘要： A scrambling system has a scrambling apparatus and a descrambling apparatus for scrambling and descrambling a digital audio signal having a plurality of 16-bit long sample data units. The scrambling apparatus has a detector for detecting, in each sample data unit, a meaningless portion which is a portion including the MSB and a meaningful portion which is a portion including the LSB, and applying scrambling only to the meaningful portion. Since the meaningless portion is not scrambled, no error data will appear in the meaningless portion. Thus, an unexpected abrupt change in sound caused by a bit error in the meaningless portion which has bits with greater weighted value can be avoided.

    摘要翻译： 加扰系统具有用于对具有多个16位长采样数据单元的数字音频信号进行加扰和解扰的加扰装置和解扰装置。 加扰装置具有检测器，用于在每个采样数据单元中检测作为包括MSB的部分的无意义部分和作为包括LSB的部分的有意义部分，并将加扰应用于有意义的部分。 由于无意义部分不加扰，所以在无意义部分中不会出现错误数据。 因此，可以避免由具有较大加权值的位的无意义部分中的位错误引起的声音的意外突然变化。