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1. 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。

2. 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。

3. 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。

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

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。

7. 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。

8. 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。

9. 发明授权

US06577813B1 Transmitting system and transmitting apparatus 失效
标题翻译：发射系统和发射装置
公开(公告)号：US06577813B1
公开(公告)日：2003-06-10
申请号：US09235491
申请日：1999-01-22
申请人： Susumu Ibaraki , Toshikazu Hattori , Hiroki Murakami
发明人： Susumu Ibaraki , Toshikazu Hattori , Hiroki Murakami
IPC分类号： H04N576
CPC分类号： H04L69/04 , H04N21/23614 , H04N21/2389 , H04N21/4305 , H04N21/4325 , H04N21/4334 , H04N21/4348 , H04N21/4385 , H04N21/6332
摘要： A transmitting system which comprises a transmission line, a transmitting apparatus connected to the transmission line, and a receiving apparatus connected to the transmission line, and transmits data between the transmitting apparatus and the receiving apparatus, wherein the transmitting apparatus comprises packet compressing means which receives input data comprising plural packets having identifiers as an input, identifies packets to be discarded and effective packets according to the identifiers, and outputs compression information indicating the number of continuously discarded packets and the effective packets to the transmission line, and the receiving apparatus comprises packet restoring means which receives the compression information and the effective packets which have been output from the transmitting apparatus, generates ineffective, packets which are as many as the discarded packets, and outputs the ineffective packets and the effective packets.
摘要翻译：一种发送系统，包括传输线，连接到传输线的发送装置和连接到传输线的接收装置，并且在发送装置和接收装置之间发送数据，其中发送装置包括分组压缩装置，其接收输入数据包括具有标识符作为输入的多个分组，根据标识符识别要丢弃的分组和有效分组，并且将表示连续丢弃分组的数量和有效分组的压缩信息输出到传输线，并且接收装置包括分组接收从发送装置输出的压缩信息和有效分组的恢复装置产生无效的与丢弃分组一样多的分组，并输出无效分组和有效分组。

10. 发明授权

US09112488B2 Semiconductor memory device with a clock circuit for reducing power consumption in a standby state 有权
标题翻译：具有用于在待机状态下降低功耗的时钟电路的半导体存储器件
公开(公告)号：US09112488B2
公开(公告)日：2015-08-18
申请号：US13303153
申请日：2011-11-23
申请人： Hiroki Murakami
发明人： Hiroki Murakami
IPC分类号： G11C7/10 , G11C7/22 , G11C5/14 , H03K19/00 , G11C16/20 , G11C16/30
CPC分类号： H03K19/0016 , G11C5/147 , G11C5/148 , G11C7/1057 , G11C7/1084 , G11C7/225 , G11C16/20 , G11C16/30 , G11C2207/2227
摘要： A semiconductor device including a logic circuit capable of decreasing a leakage current occurred during a standby state is provided. The semiconductor device includes a power supply portion for supplying a first operation voltage or a second operation voltage smaller than the first operation voltage; a P-type low-threshold transistor Tp for receiving the first or the second operation voltage from the power supply portion; and a N-type transistor Tn connected between the transistor Tp and a base potential. The transistors Tp, Tn construct a logic circuit. The power supply portion supplies the first operation voltage to the source of the transistor Tp in the enable state, and supplies the second operation voltage in a standby state. The second operation voltage is set so that voltage amplitude between gate and source of each transistor Tp, Tn is larger than the threshold value of the transistors Tp, Tn.
摘要翻译：提供一种包括能够减少在待机状态期间发生的漏电流的逻辑电路的半导体器件。半导体器件包括用于提供第一操作电压的电源部分或小于第一操作电压的第二操作电压; 用于从电源部分接收第一或第二操作电压的P型低阈值晶体管Tp; 以及连接在晶体管Tp和基极之间的N型晶体管Tn。晶体管Tp，Tn构成逻辑电路。电源部在使能状态下将第一工作电压提供给晶体管Tp的源极，将第二工作电压供给到待机状态。第二操作电压被设置为使得每个晶体管Tp，Tn的栅极和源极之间的电压幅度大于晶体管Tp，Tn的阈值。

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