专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5636279A Scramble apparatus and descramble apparatus 失效
标题翻译：加扰装置和解扰装置
公开(公告)号：US5636279A
公开(公告)日：1997-06-03
申请号：US310754
申请日：1994-09-23
申请人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura , Toshihide Akiyama , Hiroshi Takeno
发明人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura , Toshihide Akiyama , Hiroshi Takeno
IPC分类号： H04N7/167 , H04N7/26 , H04N7/30 , H04L9/00
CPC分类号： H04N7/1675 , H04N19/60 , H04N19/13 , H04N19/91
摘要： A scramble apparatus for scrambling data including a variable length code and a descramble apparatus is for descrambling a scrambled signal, and a scramble transmission apparatus comprising the scramble apparatus and the descramble apparatus. A specific code of data is converted into a readable code having a length equal to that of an original code.
摘要翻译：用于对包括可变长度码和解密装置的数据进行加扰的加扰装置用于对加扰信号进行解扰，以及加扰传输装置，包括加扰装置和解扰装置。将特定的数据代码转换成长度等于原始码长度的可读代码。

2. 发明授权

US5377266A Scramble apparatus and descramble apparatus 失效
标题翻译：加扰装置和解扰装置
公开(公告)号：US5377266A
公开(公告)日：1994-12-27
申请号：US89522
申请日：1993-07-21
申请人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura , Toshihide Akiyama , Hiroshi Takeno
发明人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura , Toshihide Akiyama , Hiroshi Takeno
IPC分类号： H04N7/167 , H04N7/26 , H04N7/30 , H04L9/00
CPC分类号： H04N7/1675 , H04N19/60 , H04N19/13 , H04N19/91
摘要： A scramble apparatus is for scrambling data including a variable length code and a descramble apparatus for descrambling a scrambled signal, and a scramble transmission apparatus comprising the scramble apparatus and the descramble apparatus. A specific code of data is converted into a readable code having a length equal to that of an original code.
摘要翻译：扰频装置用于对包括可变长度码和解扰装置的数据进行加扰，以对扰频信号进行解扰，以及加密发送装置，包括加扰装置和解扰装置。将特定的数据代码转换成长度等于原始码长度的可读代码。

3. 发明授权

US5706346A Scrambling apparatus and descrambling apparatus 失效
标题翻译：加扰装置和解扰装置
公开(公告)号：US5706346A
公开(公告)日：1998-01-06
申请号：US321757
申请日：1994-10-12
申请人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura
发明人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura
IPC分类号： H04N7/167
CPC分类号： H04N7/1675
摘要： A scrambling apparatus has at least one of the following processing units: a signal inserting processor for inserting a dummy pattern indicating the quantization width in the compressed video data; a conversion processor for scrambling a signal specifying whether field or frame processing is used; a DCT coefficient conversion processor for scrambling a part of the code defining the DCT coefficient; an intra.sub.-- dc.sub.-- precision conversion processor for scrambling the intra.sub.-- dc.sub.-- precision signal; and an alternate.sub.-- scan conversion processor for scrambling the alternate .sub.-- scan signal. A descrambling apparatus reverses the conversion process on the video data scrambled by the scrambling apparatus to restore the video data to the original unscrambled state.
摘要翻译：加扰装置具有以下处理单元中的至少一个：信号插入处理器，用于将指示量化宽度的虚拟图案插入压缩视频数据中; 转换处理器，用于对指定是使用字段还是帧处理的信号进行加扰; DCT系数转换处理器，用于对定义DCT系数的代码的一部分进行加扰; 用于对所述DC内精度信号进行加扰的DC-DC精度转换处理器; 以及用于对交替扫描信号进行加扰的交替扫描转换处理器。解扰装置对由加扰装置加扰的视频数据进行转换处理，将视频数据恢复到原来的未加扰状态。

4. 发明授权

US5546461A Scramble system for use in digital video signal recording and reproducing system or transmission and receiving system, comprising scramble apparatus and descramble apparatus 失效
标题翻译：用于数字视频信号记录和再现系统或发送和接收系统的扰频系统，包括加扰装置和解扰装置
公开(公告)号：US5546461A
公开(公告)日：1996-08-13
申请号：US225330
申请日：1994-04-08
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： H04N5/765 , H04N7/167 , H04N9/804 , H04K1/04
CPC分类号： H04N9/8047 , H04N5/765 , H04N7/1675
摘要： A scramble system of the present invention including a scramble apparatus and a descramble apparatus is applied to a recording and reproducing system or a transmission and receiving system wherein a frame of a digital video signal composed of a plurality of frames is divided into a plurality of predetermined fundamental video blocks corresponding to recording and reproducing processes. Either one of the recording and reproducing system and the transmission and receiving system executes a reconstruction process such as an interpolation process, a high speed playback process or the like. The scramble apparatus executes a scramble process on the inputted digital video signal in the identical processing manner using the fundamental video blocks in the identical position in each of the frames and generates a scrambled video signal, while the descramble apparatus effects reverse conversion of the scramble process executed by the scramble apparatus using the fundamental video blocks on the scrambled video signal generated by the scramble apparatus.
摘要翻译：包括加扰装置和解密装置的本发明的加扰系统被应用于记录和再现系统或发送和接收系统，其中由多个帧组成的数字视频信号的帧被划分为多个预定的对应于记录和再现处理的基本视频块。记录和再现系统以及发送和接收系统中的任一个执行诸如内插处理，高速重放处理等的重建处理。加密装置以相同的处理方式对输入的数字视频信号进行加扰处理，使用每帧中相同位置的基本视频块，并产生加扰视频信号，而解扰装置执行加扰处理的反向转换由加扰装置使用基本视频块对由加扰装置产生的加扰视频信号执行。

5. 发明授权

US5515437A Scramble transmission apparatus and signal processing apparatus 失效
标题翻译：扰频发送装置和信号处理装置
公开(公告)号：US5515437A
公开(公告)日：1996-05-07
申请号：US291420
申请日：1994-08-16
申请人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura
发明人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura
IPC分类号： H04N7/167
CPC分类号： H04N7/1675
摘要： The occurrence of malfunction on the reproduction side is avoided by preventing a scrambled signal from being coincided with a reserved word in the signal when a scramble process is carried out in order to release a transmission signal to specific users. The scramble process includes at least one of methods of (1) bit-inverting specified codes of the transmission signal code by code, (2) limiting bits to be scrambled from a specified position in the transmission signal, and (3) limiting codes to be scrambled to specific codes.
摘要翻译：通过在执行加扰处理时为了向特定用户释放发送信号，通过防止加扰信号与信号中的保留字一致来避免再现侧出现故障。加密处理包括以下方法中的至少一种：（1）通过代码对发送信号码的指定代码进行比特反转，（2）限制要从发送信号中的指定位置加扰的比特，以及（3）限制代码被加扰到具体代码。

6. 发明授权

US5621799A Scrambled transmission system 失效
标题翻译：加扰传输系统
公开(公告)号：US5621799A
公开(公告)日：1997-04-15
申请号：US325057
申请日：1994-10-19
申请人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura
发明人： Noboru Katta , Hiroki Murakami , Susumu Ibaraki , Seiji Nakamura
IPC分类号： H04L9/18 , H04N7/167 , H04N7/50 , H04N21/236 , H04N21/434 , H04L9/00
CPC分类号： H04N7/1675 , H04N19/61 , H04N21/2347 , H04N21/2351 , H04N21/23614 , H04N21/26613 , H04N21/4348 , H04N21/4351 , H04N21/4405
摘要： A scrambled transmission system for transmitting a digital data containing variable length coding conforming to a MPEG standard includes a scramble key generator for generating a scramble key at a timing of each GOP head. A GOP head detector detects each GOP head and causes the scramble key generator to refresh the scramble key. A seed generator generates a scramble seed based on said scramble key at a timing of each slice head. A slice head detector detects each slice head and causes the seed generator to refresh the scramble seed. A random number generator scrambles the digital data based on the scramble seed. A multiplexer embeds the scramble key in the extension.sub.-- and.sub.-- user.sub.-- data of the scrambled data.
摘要翻译：用于发送包含符合MPEG标准的可变长度编码的数字数据的加扰传输系统包括用于在每个GOP头的定时产生加扰密钥的加密密钥发生器。 GOP头检测器检测每个GOP头并使加扰密钥发生器刷新加扰密钥。种子发生器在每个切片头的定时基于所述加扰密钥产生加扰种子。切片头检测器检测每个切片头并使种子发生器刷新加扰种子。随机数发生器基于加扰种子对数字数据进行加扰。多路复用器将加扰密钥嵌入加扰数据的扩展和用户数据。

7. 发明授权

US5668879A Audio scrambling system for scrambling and descrambling audio signals 失效
标题翻译：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。

8. 发明授权

US5617476A Audio scrambling system for scrambling and descrambling audio signals 失效
标题翻译：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。

9. 发明授权

US07577251B2 Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus 有权
标题翻译：数据播放器，数字内容播放器，播放系统，数据嵌入装置和嵌入式数据检测装置
公开(公告)号：US07577251B2
公开(公告)日：2009-08-18
申请号：US11512372
申请日：2006-08-30
申请人： Hirotsugu Kawada , Noboru Katta , Susumu Ibaraki , Makoto Tatebayashi , Shunji Harada
发明人： Hirotsugu Kawada , Noboru Katta , Susumu Ibaraki , Makoto Tatebayashi , Shunji Harada
IPC分类号： H04N7/167
CPC分类号： H04N7/1675 , G11B20/00086 , G11B20/00181 , G11B20/00195 , G11B20/0021 , G11B20/00231 , G11B20/00673 , G11B20/0084 , G11B20/00884 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/2541 , H04N21/4181 , H04N21/42646 , H04N21/4325 , H04N21/4334 , H04N21/4367 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/835 , H04N21/8358 , H04N2005/91335 , H04N2005/91364
摘要： A data player for reading contents encrypted by a decoding key from a digital medium, and playing the encrypted contents by using the decoding key which is stored in a key storage unit, comprises: a key obtaining unit for performing mutual authentication with the key storage unit to obtain the decoding key stored in the key storage unit; a key holding unit for holding the decoding key; a playback state obtaining unit for monitoring the playback state of the digital medium; and a contents decoding unit for decoding the encrypted contents by using the decoding key. The decoding key is obtained by the key obtaining unit and stored in the key holding unit, and the encrypted contents read from the digital medium is decoded with the decoding key by the contents decoding unit to play the contents. The decoding key stored in the key holding unit is discarded according to the playback state of the digital medium which is obtained by the playback state obtaining unit.
摘要翻译：一种数据播放器，用于从数字介质读取通过解码密钥加密的内容，并且通过使用存储在密钥存储单元中的解码密钥播放加密内容，包括：密钥获取单元，用于执行与密钥存储单元的相互认证以获得存储在密钥存储单元中的解码密钥; 用于保持解码密钥的键保持单元; 播放状态获取单元，用于监视数字媒体的播放状态; 以及内容解码单元，用于通过使用解码密钥对加密的内容进行解码。解码密钥由密钥获取单元获得并存储在密钥保存单元中，并且由内容解码单元用解码密钥对从数字介质读取的加密内容进行解码以播放内容。存储在键保持单元中的解码密钥根据由重放状态获取单元获得的数字媒体的重放状态而被丢弃。

10. 发明授权

US06972796B2 Image pickup system and vehicle-mounted-type sensor system 有权
标题翻译：摄像系统和车载式传感器系统
公开(公告)号：US06972796B2
公开(公告)日：2005-12-06
申请号：US09793491
申请日：2001-02-27
申请人： Noboru Katta , Hirotsugu Kawata , Susumu Ibaraki , Takahisa Sakai , Toshiaki Mori , Akihiro Yamamoto , Toshihiko Kurosaki , Yuji Mizuguchi
发明人： Noboru Katta , Hirotsugu Kawata , Susumu Ibaraki , Takahisa Sakai , Toshiaki Mori , Akihiro Yamamoto , Toshihiko Kurosaki , Yuji Mizuguchi
IPC分类号： H04N5/232 , H04N7/18 , H04N5/222
CPC分类号： H04N5/23206 , H04N5/232 , H04N5/23238 , H04N7/181
摘要： A control device determines whether an image generated by merging several concurrently picked-up images has consistent image quality on a display device. If determined No, image quality parameters set in each image pickup device are so controlled as to make the image quality of the merged image consistent. Therefore, the merged image can assuredly have consistent image quality. Further, a signal processing device detects, based on positions of nodes and attributes of cameras, a connection indicating which node is connected to which camera and with what attribute. The signal processing device in advance stores every detectable connection and a plurality of image processing programs corresponding to each connection, and selects and carries out one of the image processing programs corresponding to the detected connection.
摘要翻译：控制装置确定通过合并多个同时拍摄的图像产生的图像在显示装置上是否具有一致的图像质量。如果确定为否，则对每个图像拾取装置中设置的图像质量参数进行如此控制，以使合并图像的图像质量一致。因此，合并的图像可以确保具有一致的图像质量。此外，信号处理装置基于节点的位置和摄像机的属性来检测指示哪个节点连接到哪个摄像机以及什么属性的连接。信号处理装置预先存储与每个连接相对应的每个可检测连接和多个图像处理程序，并且选择并执行与检测到的连接相对应的一个图像处理程序。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式