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1. 发明授权

US07286616B2 Data transmission system 失效
标题翻译：数据传输系统
公开(公告)号：US07286616B2
公开(公告)日：2007-10-23
申请号：US10493499
申请日：2003-05-30
申请人： Yutaka Takahira , Yuji Mizuguchi , Noboru Katta , Nobuhiko Yasui , Takahisa Sakai , Hirotsugu Kawada , Toshitomo Umei
发明人： Yutaka Takahira , Yuji Mizuguchi , Noboru Katta , Nobuhiko Yasui , Takahisa Sakai , Hirotsugu Kawada , Toshitomo Umei
IPC分类号： H04L27/06
CPC分类号： H04L25/085 , H04L7/046 , H04L25/08 , H04L25/4917
摘要： A data transmission system in which normal transmission can be performed irrespectively of the inserting orientation of a connector is provided. A transmitting device transmits to a receiving device a differential transmission signal including polarity decision data for deciding the polarity of the connector. Based on the polarity decision data included in the differential transmission signal transmitted from the transmitting device, the receiving device decides whether the polarity of the connector has been reversed or not. When it is decided that the polarity has not been reversed, the receiving device reads data from the differential transmission signal. When it is decided that the polarity has been reversed, the polarity of the differential transmission signal is reversed for data reading.
摘要翻译：提供了一种数据传输系统，其中可以执行与连接器的插入方向无关的正常传输。发送装置向接收装置发送包含决定连接器的极性的极性决定数据的差分发送信号。基于从发送装置发送的差分发送信号中包含的极性判定数据，接收装置判定连接器的极性是否已被反转。当确定极性未被反转时，接收装置从差分传输信号读取数据。当确定极性已被反转时，差分传输信号的极性反转用于数据读取。

2. 发明授权

US07190728B2 Digital data transmitter, transmission line encoding method, and decoding method 有权
标题翻译：数字数据发射机，传输线编码方法和解码方法
公开(公告)号：US07190728B2
公开(公告)日：2007-03-13
申请号：US10398447
申请日：2001-10-05
申请人： Hirotsugu Kawada , Yuji Mizuguchi , Takahisa Sakai , Noboru Katta , Toshihiko Kurosaki
发明人： Hirotsugu Kawada , Yuji Mizuguchi , Takahisa Sakai , Noboru Katta , Toshihiko Kurosaki
IPC分类号： H04L27/00
CPC分类号： H04L25/062 , H04L25/066 , H04L25/085 , H04L25/4919
摘要： A digital data transmission apparatus includes a transmitting end (100) that includes: a binary/quadrary conversion unit (110) for converting a data stream; a coding unit (120) for mapping the converted data to be coded; a digital filter (130); a D/A conversion unit (140); a low-pass filter (150) for eliminating a high-band signal; a differential driver (160) for inputting an analog signal that has passed through the low-pass filter into a twisted pair cable (300), and a receiving end (200) that includes: a low-pass filter (210) for eliminating noises from both wires of the twisted pair cable; a receiver (220) for receiving the signals that have passed through the low-pass filter; an A/D conversion unit (230); a digital filter (240); an evaluation unit (250) for evaluating a signal level of a received signal; a decoding unit (260) for decoding the signal level into receipt data; and a synchronization unit (270) for generating a clock.
摘要翻译：数字数据传输装置包括：发送端（100），包括：用于转换数据流的二进制/四次转换单元（110）; 编码单元，用于映射所转换的要编码的数据; 数字滤波器（130）; D / A转换单元（140）; 用于消除高频带信号的低通滤波器（150）; 用于将通过所述低通滤波器的模拟信号输入到双绞线电缆（300）中的差分驱动器（160）以及包括：用于消除噪声的低通滤波器（210）的接收端（200）从双绞线的两根电线; 接收器（220），用于接收已经通过低通滤波器的信号; A / D转换单元（230）; 数字滤波器（240）; 评估单元（250），用于评估接收信号的信号电平; 解码单元，用于将信号电平解码为接收数据; 以及用于产生时钟的同步单元（270）。

3. 发明授权

US07120251B1 Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus 有权
公开(公告)号：US07120251B1
公开(公告)日：2006-10-10
申请号：US09640783
申请日：2000-08-18
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.

4. 发明申请

US20060129318A1 Symbol position detection device and symbol position detection method 审中-公开
标题翻译：符号位置检测装置和符号位置检测方法
公开(公告)号：US20060129318A1
公开(公告)日：2006-06-15
申请号：US10540022
申请日：2003-12-26
申请人： Yuji Mizuguchi , Nobuhiko Yasui , Noboru Katta , Takahisa Sakai , Yutaka Takahira , Hirotsugu Kawada , Toshitomo Umei , Takashi Akita , Takefumi Yoshikawa , Shiro Dosho
发明人： Yuji Mizuguchi , Nobuhiko Yasui , Noboru Katta , Takahisa Sakai , Yutaka Takahira , Hirotsugu Kawada , Toshitomo Umei , Takashi Akita , Takefumi Yoshikawa , Shiro Dosho
IPC分类号： G06F19/00
CPC分类号： H04L7/0334 , H04L7/005 , H04L7/027 , H04L7/033
摘要： To a data reception device, a signal having a frequency of 12.5 MHz and including data is transmitted. The data reception device generates a clock B having a frequency of 400 MHz of (1) in FIG. 8, and performs sampling for the above-described 12.5 MHz signal based on the clock B ((2) in FIG. 8). Then, the data reception device detects zero cross points of the sampled data, and generates a 25 MHz frequency clock signal indicating the zero cross points ((3) in FIG. 8). Next, the data reception device generates, by delaying the generated clock signal by the time amount corresponding to eight clocks ((4) in FIG. 8), a 25 MHz signal indicating symbol points. Thus, symbol points can be detected.
摘要翻译：向数据接收装置发送频率为12.5MHz并包括数据的信号。数据接收装置在图1中生成具有400MHz的频率的时钟B（1）。基于时钟B（图8的（2））对上述12.5MHz信号进行采样。然后，数据接收装置检测取样数据的零交叉点，生成表示零交叉点（图8的（3））的25MHz频率时钟信号。接下来，数据接收装置通过将生成的时钟信号延迟与8个时钟（图8的（4））对应的时间量来生成表示符号点的25MHz信号。因此，可以检测符号点。

5. 发明申请

US20050030934A1 Data transmission system 失效
标题翻译：数据传输系统
公开(公告)号：US20050030934A1
公开(公告)日：2005-02-10
申请号：US10493499
申请日：2003-05-30
申请人： Yutaka Takahira , Yuji Mizuguchi , Noboru Katta , Nobuhiko Yasui , Takahisa Sakai , Hirotsugu Kawada , Toshitomo Umei
发明人： Yutaka Takahira , Yuji Mizuguchi , Noboru Katta , Nobuhiko Yasui , Takahisa Sakai , Hirotsugu Kawada , Toshitomo Umei
IPC分类号： H04L7/04 , H04L25/08 , H04L25/49 , H04J3/06
CPC分类号： H04L25/085 , H04L7/046 , H04L25/08 , H04L25/4917
摘要： A data transmission system in which normal transmission can be performed irrespectively of the inserting orientation of a connector is provided. A transmitting device transmits to a receiving device a differential transmission signal including polarity decision data for deciding the polarity of the connector. Based on the polarity decision data included in the differential transmission signal transmitted from the transmitting device, the receiving device decides whether the polarity of the connector has been reversed or not. When it is decided that the polarity has not been reversed, the receiving device reads data from the differential transmission signal. When it is decided that the polarity has been reversed, the polarity of the differential transmission signal is reversed for data reading.
摘要翻译：提供了一种数据传输系统，其中可以执行与连接器的插入方向无关的正常传输。发送装置向接收装置发送包含决定连接器的极性的极性决定数据的差分发送信号。基于从发送装置发送的差分发送信号中包含的极性判定数据，接收装置判定连接器的极性是否已被反转。当确定极性未被反转时，接收装置从差分传输信号读取数据。当确定极性已被反转时，差分传输信号的极性反转用于数据读取。

6. 发明申请

US20060285687A1 Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus 审中-公开
公开(公告)号：US20060285687A1
公开(公告)日：2006-12-21
申请号：US11512382
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.

7. 发明授权

US07012936B2 Initializing method and data transmitter 失效
标题翻译：初始化方法和数据发送器
公开(公告)号：US07012936B2
公开(公告)日：2006-03-14
申请号：US10398452
申请日：2001-10-05
申请人： Hirotsugu Kawada , Yuji Mizuguchi , Takahisa Sakai , Noboru Katta , Toshihiko Kurosaki , Nobuhiko Yasui , Yutaka Takahira
发明人： Hirotsugu Kawada , Yuji Mizuguchi , Takahisa Sakai , Noboru Katta , Toshihiko Kurosaki , Nobuhiko Yasui , Yutaka Takahira
IPC分类号： H04J3/06
CPC分类号： H04L25/085 , H04J3/0638 , H04L7/046 , H04L7/10 , H04L25/062 , H04L25/066 , H04L25/4919
摘要： A first initialization pattern signal is a signal in which a maximum signal level and a minimum signal level appear alternately, and a second initialization pattern signal is a signal in which all signal levels appear in a predetermined arrangement. In a ring-shaped network including plural stages of data transmission apparatuses (100), a transmission unit (110) of each data transmission apparatus outputs the first initialization pattern signal successively to a next-stage data transmission apparatus at turn-on of power or immediately after reset, and a reception unit (120) establishes clock synchronization on the basis of the first initialization pattern signal received. When synchronization is established in all of the data transmission apparatuses, the transmission unit (110) outputs the second initialization pattern signal successively to the next-stage data transmission apparatus, and the reception unit (120) sets evaluation levels for the respective signal levels on the basis of the received second initialization pattern signal, and transmission/reception of data is started when evaluation levels are set in all of the data transmission apparatuses.
摘要翻译：第一初始化模式信号是其中最大信号电平和最小信号电平交替出现的信号，并且第二初始化模式信号是其中所有信号电平以预定布置出现的信号。在包括多级数据传输装置（100）的环形网络中，每个数据传输装置的传输单元（110）将第一初始化模式信号连续地输出到下一级数据传输装置，并且接收单元（120）基于所接收的第一初始化模式信号建立时钟同步。当在所有数据传输装置中建立同步时，发送单元（110）将第二初始化模式信号连续地输出到下一级数据发送装置，并且接收单元（120）将各信号电平的评估电平设置为当在所有数据传输装置中设置评估级别时，开始接收到的第二初始化模式信号的基础和数据的发送/接收。

8. 发明授权

US07245719B2 Recording method and apparatus, optical disk, and computer-readable storage medium 有权
标题翻译：记录方法和装置，光盘和计算机可读存储介质
公开(公告)号：US07245719B2
公开(公告)日：2007-07-17
申请号：US09893504
申请日：2001-06-29
申请人： Hirotsugu Kawada , Noboru Katta , Katsuhiko Miwa , Yoshihiro Mori , Masaaki Takata
发明人： Hirotsugu Kawada , Noboru Katta , Katsuhiko Miwa , Yoshihiro Mori , Masaaki Takata
IPC分类号： H04N7/167 , G06F12/14 , G11B7/24
CPC分类号： G11B20/0021 , G06F21/00 , G11B20/00086 , G11B20/00094 , G11B20/00166 , G11B20/00253 , G11B20/00449 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N9/8205 , H04N2005/91364
摘要： A recording apparatus records movie content onto a DVD. The movie content is encrypted using a different encryption method depending on whether the DVD is intended for consumer use or industrial use. If the DVD is for consumer use, a VIDEO_TS directory is created on the DVD, and the encrypted movie content is recorded in the VIDEO_TS directory. If the DVD is for industrial use, a VIDEO_TS directory and an EWCPS_TS directory are created on the DVD, and the encrypted movie content and message data are recorded respectively in the EWCPS_TS directory and the VIDEO_TS directory. The message data indicates that the movie content cannot be played back by consumer DVD players.
摘要翻译：记录装置将电影内容记录到DVD上。使用不同的加密方式对电影内容进行加密，这取决于DVD是用于消费者还是工业用途。如果DVD用于消费者使用，则在DVD上创建VIDEO_TS目录，并将加密的电影内容记录在VIDEO_TS目录中。如果DVD用于工业用途，则在DVD上创建VIDEO_TS目录和EWCPS_TS目录，并将加密的电影内容和消息数据分别记录在EWCPS_TS目录和VIDEO_TS目录中。消息数据表示消费者DVD播放器不能播放电影内容。

9. 发明授权

US07218678B2 Digital data transmitter 有权
标题翻译：数字数据发射机
公开(公告)号：US07218678B2
公开(公告)日：2007-05-15
申请号：US10398450
申请日：2001-10-05
申请人： Noboru Katta , Yuji Mizuguchi , Takahisa Sakai , Hirotsugu Kawada , Toshihiko Kurosaki
发明人： Noboru Katta , Yuji Mizuguchi , Takahisa Sakai , Hirotsugu Kawada , Toshihiko Kurosaki
IPC分类号： H04L27/00
CPC分类号： H04L25/062 , H04L25/066 , H04L25/085 , H04L25/4919
摘要： A digital data transmission apparatus includes a transmitting end (100) that includes: a binary/quadrary conversion unit (110) for converting a data stream; a coding unit (120) for mapping converted data to be coded; a digital filter (130); a D/A conversion unit (140); a low-pass filter (150) for attenuating noises which are caused by folding distortion; a differential driver (160); low-pass filters (170a) and (170b) for eliminating noises from differentially outputted signals; and a common mode choke coil (180) for eliminating common mode noises and outputting a resultant signal to a twisted pair cable (300), and a receiving end (200) that includes: a low-pass filter (210) for eliminating noises from the twisted pair cable; a receiver (220); an A/D conversion unit (230); a digital filter (240); an evaluation unit (250) for evaluating a signal level of a received signal; a decoding unit (260) for decoding the signal level into received data; and a synchronization unit (270) for generating a clock.
摘要翻译：数字数据传输装置包括：发送端（100），包括：用于转换数据流的二进制/四次转换单元（110）; 编码单元（120），用于映射要编码的转换数据; 数字滤波器（130）; D / A转换单元（140）; 用于衰减由折叠失真引起的噪声的低通滤波器（150）; 差速驱动器（160）; 低通滤波器（170a）和（170b），用于消除差分输出信号的噪声; 以及用于消除共模噪声并将结果信号输出到双绞线电缆（300）的共模扼流线圈（180），以及接收端（200），包括：低通滤波器（210），用于消除噪声双绞线; 接收器（220）; A / D转换单元（230）; 数字滤波器（240）; 评估单元（250），用于评估接收信号的信号电平; 用于将信号电平解码为接收数据的解码单元（260）; 以及用于产生时钟的同步单元（270）。

10. 发明申请

US20060050820A1 Data transmission device and data transmission method 审中-公开
标题翻译：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。

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