公开(公告)号：US06574274B2

公开(公告)日：2003-06-03

申请号：US09256753

申请日：1999-02-24

申请人： Koji Obata ,  Nobuhiro Igi ,  Motoki Kato

发明人： Koji Obata ,  Nobuhiro Igi ,  Motoki Kato

IPC分类号： H04B166

CPC分类号： H04N19/577 ,  H04N19/114 ,  H04N19/15 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/40 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61

摘要： A picture signal processing system is disclosed, that comprises a decoder for generating the number of encoded bits and/or an average quantizing scale as representative value(s) of encoding parameters of an input encoded picture signal, decoding the input encoded picture signal, generating the decoded picture signal, and outputting the encoding parameters along with the generated decoded picture signal, and an encoder for encoding the decoded picture signal with the encoding parameters.

摘要翻译： 公开了一种图像信号处理系统，其包括用于产生编码比特数和/或平均量化比例作为编码输入编码图像信号编码参数的代表值的解码器，对输入编码图像信号进行解码，产生 解码图像信号，并且输出编码参数以及所生成的解码图像信号，以及编码器，用编码参数对解码的图像信号进行编码。

公开(公告)号：US06414999B1

公开(公告)日：2002-07-02

申请号：US09315668

申请日：1999-05-20

申请人： Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

发明人： Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

IPC分类号： H04B166

CPC分类号： G11B27/036 ,  G06T9/007 ,  G11B27/034 ,  G11B2220/20

摘要： An edit point of an earlier GOP1 is placed after an I picture I22. In addition, the edit point is not placed immediately after an I or P picture. Thus, the GOP1 is decoded. A stream placed after the edit point (a P picture and later pictures) is discarded. B pictures B26 and B27 placed after a P picture P25 are re-encoded with a forward moving vector Fw. The remaining pictures other than B pictures B26 and B27 are re-encoded with encoding information used in a decoding process. Since an edit point of a later GOP2 is not placed before the I picture I2, the GOP2 is decoded. A stream placed before the edit point (pictures B0 to P5) is discarded. The first P picture P8 is changed to an I picture. Thereafter, the re-encoding process is performed. The P picture P8 changed from the I picture is used as a predictive reference picture. With the P picture P8, a backward moving vector Bk is obtained. With only the moving vector Bk, the B pictures B6 and B7 placed before the P picture P8 are re-encoded.

摘要翻译： 较早GOP1的编辑点放置在I图片I22之后。 另外，编辑点不会立即放置在I或P图像之后。 因此，GOP1被解码。 放置在编辑点之后的流（P图片和更晚的图片）被丢弃。 放置在P图像P25之后的B图像B26和B27用前向移动矢量Fw重新编码。 除了B图像B26和B27之外的其余图像被用解码处理中使用的编码信息重新编码。 由于稍后GOP2的编辑点未放置在I图像I2之前，因此对GOP2进行解码。 放置在编辑点之前的流（图B0至P5）被丢弃。 第一个P图像P8被更改为I图像。 此后，执行重新编码处理。 从I图像改变的P图像P8用作预测参考图像。 利用P图像P8，获得向后移动矢量Bk。 只有移动矢量Bk，放置在P图像P8之前的B图像B6和B7被重新编码。

公开(公告)号：US06825886B2

公开(公告)日：2004-11-30

申请号：US10106290

申请日：2002-03-25

申请人： Hiroshi Kobayashi ,  Minoru Morio ,  Motoki Kato ,  Nobuhiro Igi ,  Koji Obata

发明人： Hiroshi Kobayashi ,  Minoru Morio ,  Motoki Kato ,  Nobuhiro Igi ,  Koji Obata

IPC分类号： H04N718

CPC分类号： H04N9/8042 ,  H04N5/85 ,  H04N19/527 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

摘要： A picture signal processing method and apparatus in which the block distortion as well as the mosquito noise produced on encoding/decoding a picture is to be suppressed. The picture signal processing apparatus includes a filter for filtering a picture, an encoder 5 for block-encoding the picture, a decoder 13 for decoding an encoded picture from the encoder 5 and a noise reducing unit 14 for reducing at least the block distortion of a picture decoded by the decoding unit 13 to reduce the noise otherwise produced on encoding/decoding the picture.

摘要翻译： 抑制图像编码/解码时产生的块失真以及产生的蚊式噪声的图像信号处理方法和装置。 图像信号处理装置包括用于对图像进行滤波的滤波器，用于对图像进行块编码的编码器5，用于从编码器5解码编码图像的解码器13和用于至少减少图像信号的块失真的噪声降低单元14 由解码单元13解码的图像，以减少在编码/解码图像时产生的噪声。

公开(公告)号：US06434275B1

公开(公告)日：2002-08-13

申请号：US09230465

申请日：1999-06-07

申请人： Kyoko Fukuda ,  Hiroshi Kobayashi ,  Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

发明人： Kyoko Fukuda ,  Hiroshi Kobayashi ,  Nobuhiro Igi ,  Koji Obata ,  Motoki Kato

IPC分类号： G06K936

CPC分类号： H04N19/40 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86

摘要： An apparatus incorporates encoding-degree-of-difficulty detecting means 3 for detecting a parameter indicating an encoding degree of difficulty from supplied image data; parameter calculating means 4 for calculating a parameter required to determine block distortion from supplied image data; block distortion determining means 6 for determining block distortion in accordance with a result of detection of the parameter indicating the encoding degree of difficulty and a result of the calculation for obtaining the parameter; correction-value calculating means 7 for calculating a correction value for reducing block distortion; and means for subjecting supplied image data to a correction using a correction value corresponding to a result of the determination of block distortion so as to produce an output.

摘要翻译： 一种装置包括难以编码的检测装置3，用于从提供的图像数据中检测指示编码难度的参数; 参数计算装置4，用于从提供的图像数据计算确定块失真所需的参数; 块失真确定装置6，用于根据指示编码难易度的参数的检测结果和用于获得参数的计算结果来确定块失真; 校正值计算装置7，用于计算减小块失真的校正值; 以及用于使用与块失真的确定结果对应的校正值对所提供的图像数据进行校正以产生输出的装置。

公开(公告)号：US07394851B2

公开(公告)日：2008-07-01

申请号：US10861748

申请日：2004-06-04

申请人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Yoshikazu Takashima

发明人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Yoshikazu Takashima

IPC分类号： H04N7/12 ,  G06K9/36

CPC分类号： H04N21/44016 ,  G11B27/034 ,  G11B27/036 ,  G11B2220/20 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N19/115 ,  H04N19/124 ,  H04N19/152 ,  H04N19/172 ,  H04N19/177 ,  H04N19/196 ,  H04N19/197 ,  H04N19/40 ,  H04N19/61 ,  H04N21/23406 ,  H04N21/23424 ,  H04N21/23655 ,  H04N21/44004

摘要： An encoder to encode video streams representing a moving picture is provided whose video encoder calculates a bit storage quantity an STD video buffer should have when input of a stream ending with a first picture to the STD video buffer ends, calculates an initial bit storage quantity of a second picture of a stream concatenated to the end of the first picture and starting with the second picture, in a VBV buffer, based on the calculated bit storage quantity of the STD buffer, and encodes the stream based on the bit storage quantity. The video encoder further calculates a bit storage quantity of the STD video buffer, for decoding a picture of the stream in the STD video buffer, calculates, based on the calculated bit storage quantity, a bit storage quantity the VBV buffer should have for ending decoding of a fourth picture of a second stream concatenated to the beginning of a third picture and ending with the fourth picture, and encodes the stream based on the calculated bit storage quantity. With such encoding, a part of video streams can be re-coded without referencing to information indicative of an initial status of a video buffer when editing the video streams.

摘要翻译： 提供一种用于对表示运动图像的视频流进行编码的编码器，其视频编码器计算STD视频缓冲器在以STD视频缓冲器结束的流的输入结束时应当具有的位存储量，计算出初始位存储量 基于所计算的STD缓冲器的比特存储量，在VBV缓冲器中连接到第一图像的结尾并以第二图像开始的流的第二图像，并且基于比特存储量对流进行编码。 视频编码器进一步计算STD视频缓冲器的比特存储量，用于对STD视频缓冲器中的流的图像进行解码，基于计算的比特存储量计算VBV缓冲器应该具有的用于结束解码的比特存储量 连接到第三图像的开始并以第四图像结束的第二流的第四图像，并且基于所计算的比特存储量对流进行编码。 通过这样的编码，当编辑视频流时，可以对视频流的一部分进行重新编码而不参考指示视频缓冲器的初始状态的信息。

公开(公告)号：US06795499B1

公开(公告)日：2004-09-21

申请号：US09583422

申请日：2000-05-31

申请人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Yoshikazu Takashima

发明人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Yoshikazu Takashima

IPC分类号： H04N712

CPC分类号： H04N21/44016 ,  G11B27/034 ,  G11B27/036 ,  G11B2220/20 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N19/115 ,  H04N19/124 ,  H04N19/152 ,  H04N19/172 ,  H04N19/177 ,  H04N19/196 ,  H04N19/197 ,  H04N19/40 ,  H04N19/61 ,  H04N21/23406 ,  H04N21/23424 ,  H04N21/23655 ,  H04N21/44004

摘要： An encoder to encode video streams representing a moving picture is provided whose video encoder calculates a bit storage quantity an STD video buffer should have when input of a stream ending with a first picture to the STD video buffer ends, calculates an initial bit storage quantity of a second picture of a stream concatenated to the end of the first picture and starting with the second picture, in a VBV buffer, based on the calculated bit storage quantity of the STD buffer, and encodes the stream based on the bit storage quantity. The video encoder further calculates a bit storage quantity of the STD video buffer, for decoding a picture of the stream in the STD video buffer, calculates, based on the calculated bit storage quantity, a bit storage quantity the VBV buffer should have for ending decoding of a fourth picture of a second stream concatenated to the beginning of a third picture and ending with the fourth picture, and encodes the stream based on the calculated bit storage quantity. With such encoding, a part of video streams can be re-coded without referencing to information indicative of an initial status of a video buffer when editing the video streams.

公开(公告)号：US06795498B1

公开(公告)日：2004-09-21

申请号：US09576594

申请日：2000-05-22

申请人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Hideyuki Narita

发明人： Motoki Kato ,  Koji Obata ,  Nobuhiro Igi ,  Hideyuki Narita

IPC分类号： H04B760

CPC分类号： H04N19/40 ,  H04N19/61

摘要： An image processing system comprising a decoder 10 and an encoder 30. The decoder 10 comprises a section 12 for decoding a bit stream to generate image data, generating coding parameters for each layer and generating an error flag indicating whether the coding parameters can be effectively used. The encoder 30 comprises a control section 41, an MB-parameter calculating section 36, an encoding section 38 and a variable-length encoding section 39. The section 41 determines, from the error flag, whether or not the coding parameters can be effectively used or not. The section 36 calculates coding parameters when the coding parameters generated by the section 12 are invalid. The sections 38 and 39 encodes the image data by using the coding parameters generated by the section 12 when these parameters are valid, and by using the coding parameters calculated by the section 36 when the coding parameters generated by the section 12 are invalid.

摘要翻译： 包括解码器10和编码器30的图像处理系统。解码器10包括用于对比特流进行解码以产生图像数据的部分12，为每个层生成编码参数并生成指示编码参数是否可以被有效地使用的错误标志 。 编码器30包括控制部分41，MB参数计算部分36，编码部分38和可变长度编码部分39.部分41根据误差标志确定是否可以有效地使用编码参数 或不。 当部分12产生的编码参数无效时，部分36计算编码参数。 部分38和39通过使用当这些参数有效时由部分12产生的编码参数，并且当由部分12产生的编码参数无效时，使用由部分36计算的编码参数来编码图像数据。

公开(公告)号：US06466625B1

公开(公告)日：2002-10-15

申请号：US09220746

申请日：1998-12-23

申请人： Hiroshi Kobayashi ,  Minoru Morio ,  Motoki Kato ,  Nobuhiro Igi ,  Koji Obata

发明人： Hiroshi Kobayashi ,  Minoru Morio ,  Motoki Kato ,  Nobuhiro Igi ,  Koji Obata

IPC分类号： H04N718

CPC分类号： H04N9/8042 ,  H04N5/85 ,  H04N19/527 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

摘要： A picture signal processing method and apparatus in which the block distortion as well as the mosquito noise produced on encoding/decoding a picture is to be suppressed. The picture signal processing apparatus includes a filter for filtering a picture, an encoder 5 for block-encoding the picture, a decoder 13 for decoding an encoded picture from the encoder 5 and a noise reducing unit 14 for reducing at least the block distortion of a picture decoded by the decoding unit 13 to reduce the noise otherwise produced on encoding/decoding the picture.

摘要翻译： 抑制图像编码/解码时产生的块失真以及产生的蚊式噪声的图像信号处理方法和装置。 图像信号处理装置包括用于对图像进行滤波的滤波器，用于对图像进行块编码的编码器5，用于从编码器5解码编码图像的解码器13和用于至少减少图像信号的块失真的噪声降低单元14 由解码单元13解码的图像，以减少在编码/解码图像时产生的噪声。

公开(公告)号：US09097768B2

公开(公告)日：2015-08-04

申请号：US13618147

申请日：2012-09-14

申请人： Koji Obata ,  Yutaka Higashimura ,  Keiji Suzuki

发明人： Koji Obata ,  Yutaka Higashimura ,  Keiji Suzuki

IPC分类号： G01R31/34 ,  G01R31/12

CPC分类号： G01R31/343 ,  G01R31/1227

摘要： With a rotating electric machine testing method for applying a test voltage to an armature winding of the rotating electric machine to thereby test insulation performance of the armature winding, in the case where a rated voltage of the armature winding of the rotating electric machine is E, and an insulation test voltage of an armature winding of a sine wave voltage drive rotating electric machine at the rated voltage E is E/√{square root over (3)} or E, a test voltage Vtest applied to an armature winding of the inverter drive rotating electric machine is set to Vtest=α·E/√{square root over (3)} or Vtest′=α·E, respectively, provided that α(=tinv/tsin), if the insulation thicknesses of the sine wave drive rotating electric machine is tsin and of the inverter drive rotating electric machine is tinv, thereby conducting a test on any of the AC voltage-current characteristic, AC tan δ, and AC partial-discharge characteristics.

摘要翻译： 利用用于向旋转电机的电枢绕组施加测试电压从而测试电枢绕组的绝缘性能的旋转电机测试方法，在旋转电机的电枢绕组的额定电压为E的情况下， 并且在额定电压E下的正弦波电压驱动旋转电机的电枢绕组的绝缘测试电压为E /√{平方根超过（3）}或E，施加到逆变器的电枢绕组的测试电压V test 驱动旋转电机分别设置为V test =α·E /√{平方根超过（3）}或Vtest'=α·E，条件是α（= tinv / tsin），如果正弦波的绝缘厚度 驱动旋转电机是tsin，变频器驱动旋转电机是tinv，从而对任何交流电压 - 电流特性，ACtanδ和AC局部放电特性进行测试。

公开(公告)号：US20130033214A1

公开(公告)日：2013-02-07

申请号：US13516100

申请日：2010-08-23

申请人： Koji Obata ,  Yutaka Matsunobu

发明人： Koji Obata ,  Yutaka Matsunobu

IPC分类号： H02P27/06 ,  G01R31/34

CPC分类号： G01R31/1227 ,  B60L3/0069 ,  B60L2200/26 ,  G01R31/343 ,  G01R31/346 ,  H02K11/20 ,  Y02T10/641

摘要： A rotating electric machine for an electric vehicle, installed in a vehicle and driven by an inverter power source, includes: a partial discharge measuring device that measures partial discharges occurring in insulated areas between windings, between phases and between the rotating electric machine and a ground.

摘要翻译： 一种用于电动车辆的旋转电机，安装在车辆中并由逆变器电源驱动，包括：局部放电测量装置，其测量在绕组之间，相之间以及旋转电机与地之间的绝缘区域中发生的局部放电 。