公开(公告)号：US20070286423A1

公开(公告)日：2007-12-13

申请号：US11742038

申请日：2007-04-30

申请人： Atsumu Soda ,  Takayuki Takeda ,  Ichiro Munakata

发明人： Atsumu Soda ,  Takayuki Takeda ,  Ichiro Munakata

IPC分类号： H04N7/167

CPC分类号： H04N7/1675 ,  H04N21/2347 ,  H04N21/26613 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/835

摘要： Disclosed herein is an information processing system including: a first information processing apparatus for transmitting a content including video and audio signals; and a second information processing apparatus for receiving the content. The first apparatus includes: a first key generator configured to generate a first key; a video encryptor configured to encrypt the video signal with the first key; an audio encryptor configured to encrypt the audio signal with the first key; and a transmitter configured to transmit the content including the encrypted video and audio signals. The second apparatus includes: a receiver configured to receive the content; a second key generator configured to generate a second key corresponding to the first key; a video decryptor configured to decrypt the encrypted video signal with the second key; and an audio decryptor configured to decrypt the encrypted audio signal with the second key.

摘要翻译： 这里公开了一种信息处理系统，包括：第一信息处理装置，用于发送包括视频和音频信号的内容; 以及用于接收内容的第二信息处理装置。 第一装置包括：第一密钥生成器，被配置为生成第一密钥; 配置为利用所述第一密钥加密所述视频信号的视频加密器; 音频加密器，被配置为用所述第一密钥加密所述音频信号; 以及发送器，被配置为发送包括加密的视频和音频信号的内容。 第二装置包括：被配置为接收内容的接收器; 第二密钥生成器，被配置为生成与所述第一密钥对应的第二密钥; 视频解密器，被配置为用所述第二密钥解密所述加密的视频信号; 以及音频解码器，被配置为用所述第二密钥解密所述加密音频信号。

公开(公告)号：US07853802B2

公开(公告)日：2010-12-14

申请号：US11742038

申请日：2007-04-30

申请人： Atsumu Soda ,  Takayuki Takeda ,  Ichiro Munakata

发明人： Atsumu Soda ,  Takayuki Takeda ,  Ichiro Munakata

IPC分类号： H04L9/32 ,  H04L9/00 ,  H04N7/167

CPC分类号： H04N7/1675 ,  H04N21/2347 ,  H04N21/26613 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/835

摘要： Disclosed herein is an information processing system including: a first information processing apparatus for transmitting a content including video and audio signals; and a second information processing apparatus for receiving the content. The first apparatus includes: a first key generator configured to generate a first key; a video encryptor configured to encrypt the video signal with the first key; an audio encryptor configured to encrypt the audio signal with the first key; and a transmitter configured to transmit the content including the encrypted video and audio signals. The second apparatus includes: a receiver configured to receive the content; a second key generator configured to generate a second key corresponding to the first key; a video decryptor configured to decrypt the encrypted video signal with the second key; and an audio decryptor configured to decrypt the encrypted audio signal with the second key.

摘要翻译： 这里公开了一种信息处理系统，包括：第一信息处理装置，用于发送包括视频和音频信号的内容; 以及用于接收内容的第二信息处理装置。 第一装置包括：第一密钥生成器，被配置为生成第一密钥; 配置为利用所述第一密钥加密所述视频信号的视频加密器; 音频加密器，被配置为用所述第一密钥加密所述音频信号; 以及发送器，被配置为发送包括加密的视频和音频信号的内容。 第二装置包括：被配置为接收内容的接收器; 第二密钥生成器，被配置为生成与所述第一密钥对应的第二密钥; 视频解密器，被配置为用所述第二密钥解密所述加密的视频信号; 以及音频解码器，被配置为用所述第二密钥解密所述加密音频信号。

公开(公告)号：US20070263867A1

公开(公告)日：2007-11-15

申请号：US11738669

申请日：2007-04-23

申请人： Atsumu Soda ,  Takayuki Takeda ,  Ichiro Munakata

发明人： Atsumu Soda ,  Takayuki Takeda ,  Ichiro Munakata

IPC分类号： H04N7/167

CPC分类号： H04N7/1675 ,  H04N21/233 ,  H04N21/23476 ,  H04N21/2351 ,  H04N21/26613 ,  H04N21/439 ,  H04N21/4405 ,  H04N21/84

摘要： Disclosed herein is an information processing system including: a first information processing apparatus for transmitting an audio signal in accordance with SMPTE 299M using HD-SDI standardized in SMPTE 292M; and a second information processing apparatus for receiving the signal. The first apparatus includes: a first key generator; an audio encryptor configured to perform an encryption process; an encryption On/Off decider configured to decide which part of the signal is to be encrypted and which part is not, and accordingly control the encryption process; and a transmitter configured to transmit the encrypted signal. The second apparatus includes: a receiver configured to receive the encrypted signal; a second key generator; an audio decryptor configured to perform a decryption process; and an encryption On/Off determiner configured to determine which part of the encrypted signal has been encrypted and which part has not, and accordingly control the decryption process.

摘要翻译： 这里公开了一种信息处理系统，包括：第一信息处理装置，用于使用在SMPTE 292M中标准化的HD-SDI，根据SMPTE 299M发送音频信号; 以及用于接收信号的第二信息处理装置。 第一装置包括：第一密钥发生器; 被配置为执行加密处理的音频加密器; 加密开/关判定器，被配置为确定信号的哪个部分被加密，哪个部分不被加密，并且因此控制加密过程; 以及被配置为发送加密信号的发射机。 第二装置包括：被配置为接收加密信号的接收机; 第二个键发生器; 配置为执行解密处理的音频解码器; 以及加密开/关确定器，被配置为确定加密信号的哪个部分已经被加密，哪个部分没有被加密，并因此控制解密过程。

公开(公告)号：US5677858A

公开(公告)日：1997-10-14

申请号：US405157

申请日：1995-03-16

申请人： Takayuki Takeda ,  Atsumu Soda ,  Jeremy Brayley

发明人： Takayuki Takeda ,  Atsumu Soda ,  Jeremy Brayley

IPC分类号： G11B20/10 ,  G06F17/17 ,  G11B20/14

CPC分类号： G06F17/17

摘要： An audio rate converter converts a sampling rate for audio data into a fixed rate. In the audio rate converter, an input audio data DAin at a sampling rate of PFS (48 kHz.+-.x%) are stored in the memory in accordance with a write address WAD which is synchronized with the rate PFS. Audio data are read from the memory in accordance with a read address RAD which is synchronized with a rate FS (48 kHz), and coefficient data determined based on a sampling point in output audio data are read from a ROM table in accordance with a read address Coef.AD which is synchronized with the rate FS. A data arithmetic and logic circuit performs multiplying and adding operations using these data in order to produce the output audio data DAout. If the sampling rate PFS at which the input audio data are provided changes, the audio rate converter can provide the output audio data DAout at the fixed sampling rate FS.

摘要翻译： 音频转换器将音频数据的采样率转换成固定速率。 在音频转换器中，按照与速率PFS同步的写入地址WAD，以PFS（48kHz +/- x％）的采样率的输入音频数据DAin被存储在存储器中。 根据与速率FS（48kHz）同步的读地址RAD从存储器读取音频数据，并且根据读取的从ROM表读取输出音频数据中的采样点确定的系数数据 地址Coef.AD与速率FS同步。 数据运算和逻辑电路使用这些数据进行乘法和加法运算，以产生输出音频数据DAout。 如果提供输入音频数据的采样率PFS改变，则音频速率转换器可以以固定采样率FS提供输出音频数据DAout。

公开(公告)号：US5638124A

公开(公告)日：1997-06-10

申请号：US410895

申请日：1995-03-27

申请人： Atsumu Soda ,  Takayuki Takeda

发明人： Atsumu Soda ,  Takayuki Takeda

IPC分类号： H04N5/93 ,  G11B15/02 ,  G11B15/087 ,  G11B15/18 ,  G11B27/00 ,  H04N5/073 ,  H04N5/14 ,  H04N5/783 ,  H04N5/926 ,  H04N7/01 ,  H04N9/804 ,  H04N9/87 ,  H04N11/04 ,  H04N19/50 ,  H04N7/12 ,  H04N5/76 ,  H04N11/02

CPC分类号： G11B27/005 ,  G11B15/087 ,  H04N5/147 ,  H04N5/783 ,  H04N7/01 ,  H04N9/8047 ,  H04N9/87 ,  G11B15/02 ,  G11B15/1875 ,  G11B2220/90 ,  H04N5/073 ,  H04N5/144 ,  H04N5/9264 ,  H04N5/93

摘要： A video signal processing apparatus includes a discrete cosine transform circuit for generating a DC component and an AC component by processing image data in a discrete cosine transform fashion, a motion detecting circuit for generating a coincidence detection level based on an energy ratio between the DC component and the AC component generated by the discrete cosine transform circuit, comparing a difference between a DC component of a first field or frame and a DC component of a second field or frame continuing the first field or frame of the image data with the coincidence detection level and detecting on the basis of a compared result whether the image data indicates a moving picture or a still picture, and an image inserting and extracting circuit for inserting an image into or extracting an image from image data at field or frame unit based on a detected result of the motion detecting circuit, wherein the image inserting and extracting circuit inserts an image into or extracts an image from image data at the field unit when the motion detecting circuit detects that the image data indicates a moving picture and inserts an image into or extracts an image from image data at the frame unit when the motion detecting circuit detects that the image data indicates a still picture.

摘要翻译： 视频信号处理装置包括：离散余弦变换电路，用于通过以离散余弦变换方式处理图像数据来产生DC分量和AC分量;运动检测电路，用于根据DC分量和DC分量之间的能量比产生一致检测电平; 以及由离散余弦变换电路产生的AC分量，将第一场或帧的直流分量与继续图像数据的第一场或帧的第二场或帧的直流分量之间的差与重合检测电平进行比较 并且基于比较结果来检测图像数据是指示运动图像还是静止图像;以及图像插入和提取电路，用于基于检测到的图像插入和提取图像，或者以场或帧单位从图像数据中提取图像 运动检测电路的结果，其中图像插入和提取电路将图像插入或提取 当运动检测电路检测到图像数据指示运动图像并且当运动检测电路检测到图像数据指示时从帧单元的图像数据插入图像或从图像数据提取图像时，在场单元处的图像数据中， 静止图片

公开(公告)号：US5974225A

公开(公告)日：1999-10-26

申请号：US109773

申请日：1998-07-02

申请人： Tetsuya Iwamoto ,  Akira Sugiyama ,  Hiroshi Inamura ,  Atsumu Soda ,  Junichi Ogikubo

发明人： Tetsuya Iwamoto ,  Akira Sugiyama ,  Hiroshi Inamura ,  Atsumu Soda ,  Junichi Ogikubo

IPC分类号： G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  G11B27/30 ,  H04N5/7826 ,  H04N9/804 ,  H04N9/806 ,  H04N9/877 ,  H04N5/917 ,  H04N7/26

CPC分类号： H04N9/8042 ,  G11B20/1208 ,  G11B27/036 ,  G11B27/3027 ,  G11B2020/10592 ,  G11B2220/90 ,  G11B27/032 ,  H04N5/78266 ,  H04N9/8063 ,  H04N9/877

摘要： A video data recording apparatus which divides video data which has been compressed and encoded in units of groups of pictures (GOPs) comprised of the video data of a predetermined plurality of frames into a plurality of data blocks of a predetermined format, adding a GOP identifying code for identifying a GOP of compressed and encoded video data, recording on a predetermined number of slanted tracks on the tape the plurality of data blocks. Also, a video data reproduction apparatus which reproduces the video data recorded by the video data recording apparatus by simple tracking control.

公开(公告)号：US5764428A

公开(公告)日：1998-06-09

申请号：US758759

申请日：1996-12-03

申请人： Atsumu Soda

发明人： Atsumu Soda

IPC分类号： H04N5/783 ,  G11B5/02 ,  G11B5/027 ,  G11B5/035 ,  G11B15/18 ,  G11B15/54 ,  H04N5/93

CPC分类号： G11B5/02 ,  G11B5/035 ,  G11B15/1875 ,  G11B15/54

摘要： An audio signal reproducing apparatus which can remove, upon variable speed reproduction, only noise such as noise caused by a bias frequency without sacrificing sound is disclosed. An audio signal recorded on a magnetic tape is reproduced by a magnetic head, amplified by an amplifier and supplied to a voltage controlled filter. Meanwhile, the feeding speed of the magnetic tape is detected by a tape speed detector and converted into a corresponding voltage by a tape speed to voltage converter, and the voltage is further converted into a control voltage by a control voltage generation circuit. The control voltage is supplied to the voltage controlled filter so that the cutoff frequency of the filter is varied in accordance with the control voltage. The cutoff frequency decreases as the feeding speed of the magnetic tape decreases. Signals of frequencies of the audio signal inputted to the filter which are lower than the cutoff frequency are maintained while noise components including a signal of a bias frequency are cut by the filter.

摘要翻译： 公开了一种音频信号再现装置，其可以在可变速度再现时除去噪声，例如由偏置频率引起的噪声而不牺牲声音。 记录在磁带上的音频信号由磁头再现，由放大器放大并提供给压控滤波器。 同时，磁带的馈送速度由带速检测器检测，并通过带速转换电压转换成相应的电压，并通过控制电压产生电路将电压进一步转换为控制电压。 控制电压被提供给压控滤波器，使得滤波器的截止频率根据控制电压而变化。 当磁带的进给速度降低时，截止频率降低。 保持输入到滤波器的音频信号的频率低于截止频率的信号，并且包括偏置频率的信号的噪声分量被滤波器切断。

公开(公告)号：US07912340B2

公开(公告)日：2011-03-22

申请号：US10342048

申请日：2003-01-14

申请人： Atsumu Soda

发明人： Atsumu Soda

IPC分类号： H04N5/935 ,  H04N5/931 ,  H04N5/932 ,  H04N5/76 ,  H04N9/80

CPC分类号： H04N5/772 ,  H04N5/783 ,  H04N5/85 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/8047 ,  H04N9/8063 ,  H04N9/8227

摘要： A high speed data processing apparatus which is able to produce smooth reproduced pictures without lowering the quality of the reproduced picture. When the high speed reproduction is selected by a user, a system controller controls a media controller to cause a reproducing driver to read out a plural number of stamp video data from an optical disc to write the data in an associated memory space of the memory on the frame basis. The data processing apparatus reads out stamp video data written on the frame basis in a memory space of the memory portion-wise to display the plural number of frames of the picture information simultaneously on one picture frame in each output frame.

摘要翻译： 一种高速数据处理装置，其能够在不降低再现图像的质量的情况下产生平滑的再现图像。 当用户选择高速再现时，系统控制器控制媒体控制器以使再现驱动器从光盘读出多个印象视频数据，以将数据写入存储器的相关存储器空间 框架基础。 数据处理装置在存储器部分的存储器空间中读出以帧为基础写入的印象图像数据，以在每个输出帧中的一个图像帧上同时显示图像信息的多个帧。

公开(公告)号：US07822203B2

公开(公告)日：2010-10-26

申请号：US11459804

申请日：2006-07-25

申请人： Atsumu Soda

发明人： Atsumu Soda

IPC分类号： H04L9/00

CPC分类号： H04L9/0891

摘要： An information processing apparatus decrypts, using meta data, encrypted data obtained by encrypting stream data including successive frames according to an encryption method in which, when the stream data is sequentially encrypted on a frame-by-frame basis, a key used for encrypting each frame is updated according to a predetermined rule. The meta data includes the plurality of keys used for encrypting the stream data and update information for identifying update timings of the keys. The apparatus includes a decrypter for acquiring the encrypted data and decrypting each frame using the key used for encrypting the frame and a meta data acquirer for acquiring the meta data and delivering one of the keys corresponding to the frame to the decrypter in accordance with the update information. The meta data acquirer includes a corrector for detecting an error in the update information and correcting the update information if an error has occurred.

摘要翻译： 信息处理装置使用元数据解密通过根据加密方法加密包含连续帧的流数据而获得的加密数据，其中当流数据逐帧依次加密时，用于加密每个 帧根据预定规则被更新。 元数据包括用于加密流数据的多个密钥和用于识别密钥的更新定时的更新信息。 该装置包括用于获取加密数据并使用用于加密帧的密钥解密每个帧的解密器，以及用于获取元数据的元数据获取器，并且根据该更新将与帧对应的一个密钥递送给解密器 信息。 元数据获取器包括用于检测更新信息中的错误并且如果发生错误则校正更新信息的校正器。

公开(公告)号：US06611652B1

公开(公告)日：2003-08-26

申请号：US08860537

申请日：1997-10-31

申请人： Tetsuya Iwamoto ,  Yoshinori Suzuki ,  Hiroshi Inamura ,  Atsumu Soda ,  Tatsuji Yamazaki ,  Junichi Ogikubo ,  Soichiro Niho ,  Nirokazu Ito ,  Hiroyuki Fujita ,  Yuichi Kojima

发明人： Tetsuya Iwamoto ,  Yoshinori Suzuki ,  Hiroshi Inamura ,  Atsumu Soda ,  Tatsuji Yamazaki ,  Junichi Ogikubo ,  Soichiro Niho ,  Nirokazu Ito ,  Hiroyuki Fujita ,  Yuichi Kojima

IPC分类号： H04N576

CPC分类号： H04N9/8042 ,  G11B5/0086 ,  G11B15/026 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4671 ,  G11B20/1208 ,  G11B27/005 ,  G11B27/031 ,  G11B27/032 ,  G11B27/10 ,  G11B27/3027 ,  G11B2020/10833 ,  G11B2220/90 ,  H04N5/222 ,  H04N5/765 ,  H04N5/783 ,  H04N5/945 ,  H04N9/797 ,  H04N9/885

摘要： An AV data input/output controlling circuit is connected through a data bus to a synchronous-asynchronous conversion circuit and through a control bus to a recording and reproduction controlling circuit. The AV data input/output controlling circuit inputs and outputs audio and/or video data of a normal data rate. The AV data input/output controlling circuit also inputs and outputs audio and/or video data of a higher data rate than usual. In the data recording and reproducing apparatus, audio and/or video data is transferred through a data bus synchronized with a reference synchronization signal S28 etc., the audio and/or video data input from an external unit is recorded in a storage device, and the audio and/or video data recorded in the storage device is reproduced and supplied to the outside.

摘要翻译： AV数据输入/输出控制电路通过数据总线连接到同步异步转换电路，并通过控制总线连接到记录和再现控制电路。 AV数据输入/输出控制电路输入和输出正常数据速率的音频和/或视频数据。 AV数据输入/输出控制电路还输入和输出比平常更高数据速率的音频和/或视频数据。 在数据记录和再现装置中，通过与参考同步信号S28等同步的数据总线传送音频和/或视频数据，将从外部单元输入的音频和/或视频数据记录在存储装置中， 记录在存储装置中的音频和/或视频数据被再现并提供给外部。