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91. 发明授权

US5920579A Digital signal reproduction apparatus 失效
公开(公告)号：US5920579A
公开(公告)日：1999-07-06
申请号：US8906
申请日：1998-01-16
申请人： Yutaka Nagai , Shuichi Sagano , Toshifumi Takeuchi , Taku Hoshizawa , Osamu Kawamae
发明人： Yutaka Nagai , Shuichi Sagano , Toshifumi Takeuchi , Taku Hoshizawa , Osamu Kawamae
IPC分类号： H04N5/92 , G11B20/18 , G11C29/00 , H03M13/00 , H04N5/926 , H04N5/945
CPC分类号： G11B20/1813 , H04N5/945 , G11B2020/183 , H04N5/9262
摘要： A quick retry operation is possible by outputting an error flag pertaining to a sector after error correction processing of digital data. When an output of an error detection flag unit for a correction block indicates the existence of an uncorrectable error, the sectors are checked to see if the sectors corresponding to retrieved data include any error or not based on output from a sector error flag register B. When the sectors are judged as error, signals are retrieved again from a storage medium, restored in a memory, and an error correction processing is repeated again. The data such as that of P pictures or B pictures of MPEG which can be reproduced even with errors are output even when the error detection flag unit indicates the existence of the uncorrectable error. It enables identification of the sectors with the errors and simplifies the following operations pertaining to the error at a data receiving side by outputting the error flag along with the data.

92. 发明授权

US5706385A Rotary head type magnetic recording and reproducing apparatus 失效
标题翻译：旋转头式磁记录和再现装置
公开(公告)号：US5706385A
公开(公告)日：1998-01-06
申请号：US351649
申请日：1994-12-07
申请人： Hideaki Suzuki , Susumu Yoshida , Nobutaka Amada , Toshifumi Takeuchi , Takao Arai
发明人： Hideaki Suzuki , Susumu Yoshida , Nobutaka Amada , Toshifumi Takeuchi , Takao Arai
IPC分类号： H04N5/782 , H04N5/7826 , H04N5/783 , H04N5/913 , H04N9/79 , H04N9/797 , H04N9/802 , H04N9/804 , H04N9/83 , H04N9/87 , H04N15/226 , H04N5/11 , H04N9/99
CPC分类号： H04N5/78263 , H04N9/7973 , H04N9/802 , H04N9/8042 , H04N9/83 , H04N2005/91364 , H04N5/78213 , H04N5/783 , H04N5/913 , H04N9/7904 , H04N9/87
摘要： A rotary head type magnetic recording and reproducing apparatus for recording and reproducing an analog wide-band video signal, audio signal and compressed digital signal on the same recording medium. The modulated analog wide-band video signal or the narrow-band-converted compressed digital signal is recorded on two video tracks adjacent to each other on a magnetic tape by magnetic heads on a rotary drum.
摘要翻译：用于在相同记录介质上记录和再现模拟宽带视频信号，音频信号和压缩数字信号的旋转磁头式磁记录和再现装置。经调制的模拟宽带视频信号或窄带转换的压缩数字信号通过旋转磁鼓上的磁头在磁带上彼此相邻的两个视频轨道上记录。

93. 发明授权

US5528574A Disk reproducing apparatus capable of increasing speed of access to disks recorded at constant linear velocity 失效
标题翻译：能够提高以恒定线速度记录的光盘访问速度的磁盘重放装置
公开(公告)号：US5528574A
公开(公告)日：1996-06-18
申请号：US357978
申请日：1994-12-16
申请人： Toshifumi Takeuchi , Shigeki Inoue , Akio Fukushima , Takao Arai , Yutaka Nagai
发明人： Toshifumi Takeuchi , Shigeki Inoue , Akio Fukushima , Takao Arai , Yutaka Nagai
IPC分类号： G11B7/005 , G11B19/02 , G11B19/247 , G11B19/28 , G11B20/10 , G11B7/00
CPC分类号： G11B19/247 , G11B19/02 , G11B19/28 , G11B20/10 , G11B7/005
摘要： An optical disk reproducing apparatus for reproducing at a high access-speed an optical disk on which data has been recorded at a constant linear velocity (CLV) includes a control circuit for controlling reading of the disk recorded at a CLV to be rotated at a constant angular velocity (CAV), and a processor for changing the frequency of a reference clock to determine the processing timing of the reproduced digital signal in accordance with a transmission speed of the digital information signal picked up from the disk. A motor for driving the disk can be rotated at a constant revolution rate upon access to the disk, and thus it is possible to remove one of the factors for determining the access time in the conventional CLV type reproduction system, or the time for controlling the motor to rotate for a constant linear velocity in accordance with the position of the optical pickup.
摘要翻译：一种用于以高速存取速度再现数据以恒定线速度（CLV）记录的光盘的光盘重放装置包括控制电路，该控制电路用于控制在CLV处记录的磁盘的读数以使其以恒定的速度旋转角速度（CAV）和用于改变参考时钟的频率的处理器，以根据从盘拾取的数字信息信号的传输速度确定再现的数字信号的处理定时。用于驱动盘的电动机可以在进入盘时以恒定的转速旋转，因此可以去除用于确定常规CLV类型再现系统中的存取时间的因素之一，或者控制该时间电机根据光学拾取器的位置旋转恒定的线速度。

94. 发明授权

US5414567A Magnetic recording and reproducing device 失效
标题翻译：磁记录和再现装置
公开(公告)号：US5414567A
公开(公告)日：1995-05-09
申请号：US625822
申请日：1990-12-11
申请人： Nobutaka Amada , Toshifumi Takeuchi , Akira Abeta , Takao Arai , Kouei Usuda
发明人： Nobutaka Amada , Toshifumi Takeuchi , Akira Abeta , Takao Arai , Kouei Usuda
IPC分类号： G11B5/02 , G11B20/10 , H04N5/782 , H04N9/802 , H04N9/835 , H04N5/78
CPC分类号： H04N9/835 , G11B20/10 , H04N5/78213 , H04N9/802
摘要： A magnetic recording method and apparatus which performs a quadrature phase shift keying operation on a digital information signal, superimposes a high frequency bias signal on the performed signal, records the resulting signal into a deep portion of a magnetic layer of a magnetic tape with a first rotational head, and records a video signal in a surface portion of the magnetic layer above a track formed by the former recording, with a second rotational head which is different in azimuth angle from the first rotational head, the frequency of the high frequency bias signal being set to a value which is about four times as high as the carrier frequency of the quadrature phase shift keyed digital information signal, thereby eliminating a 5th-order distortion component due to cross modulation of the high frequency bias signal and the carrier frequency.
摘要翻译：对数字信息信号执行正交相移键控操作的磁记录方法和装置，在所执行的信号上叠加高频偏置信号，将所得到的信号记录在磁带的磁性层的深部，第一旋转头，并且利用与第一旋转头的方位角不同的第二旋转头将磁性层的表面部分中的视频信号记录在由前一记录形成的轨道上，高频偏置信号的频率被设置为正交相移键控数字信息信号的载波频率的约四倍的值，从而消除由于高频偏置信号和载波频率的交叉调制引起的5阶失真分量。

95. 发明授权

US08074071B2 Reproducing apparatus, recording apparatus and display apparatus 失效
标题翻译：再现装置，记录装置和显示装置
公开(公告)号：US08074071B2
公开(公告)日：2011-12-06
申请号：US12840726
申请日：2010-07-21
申请人： Osamu Kawamae , Toshifumi Takeuchi , Hiroyuki Kimura , Takao Arai , Hiroshi Yoshiura
发明人： Osamu Kawamae , Toshifumi Takeuchi , Hiroyuki Kimura , Takao Arai , Hiroshi Yoshiura
IPC分类号： H04L9/16
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A system effecting a data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a descrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译：一种影响多个设备的数据再现方法的系统，用于通过彼此认证多个设备来发送和接收数据，所述数据再现方法包括：从多个解扰方法中选择对应于类型的解扰方法的所述数据，通过与所选择的解扰方法相对应的认证方法执行认证，其中从多种认证方法中选择认证方法，并再现所述数据。

96. 发明授权

US07689100B2 Digital signal recording/reproducing apparatus 失效
标题翻译：数字信号记录/再现装置
公开(公告)号：US07689100B2
公开(公告)日：2010-03-30
申请号：US10928242
申请日：2004-08-30
申请人： Manabu Sasamoto , Hiroo Okamoto , Toshifumi Takeuchi , Masaru Takahashi
发明人： Manabu Sasamoto , Hiroo Okamoto , Toshifumi Takeuchi , Masaru Takahashi
IPC分类号： H04N5/91 , H04N7/26
CPC分类号： H04N5/913 , H04L9/0869 , H04L2209/605 , H04N9/7921 , H04N9/8042 , H04N2005/91364
摘要： A digital signal recording apparatus is disclosed, which is capable of protecting the copyright of the analog input information encoded into a first digital signal in a recording medium. A second digital signal encrypted based on the key information and the input analog signal encrypted based on the key information are converted into a second digital signal and encrypted, and the resulting signal is selectively recorded in a recording medium. The digital signal recording apparatus further comprises a circuit for encrypting the digital signal converted from the input analog signal with a key obtained by a predetermined calculation of the key information according to a scheme similar to the second digital signal protection scheme through a digital interface, and a signal recording circuit for recording the key information and the encrypted digital signal in a recording medium.
摘要翻译：公开了一种数字信号记录装置，其能够保护编码到记录介质中的第一数字信号中的模拟输入信息的版权。基于密钥信息加密的第二数字信号和基于密钥信息加密的输入模拟信号被转换成第二数字信号并被加密，并将所得到的信号选择性地记录在记录介质中。数字信号记录装置还包括一个电路，用于通过数字接口根据类似于第二数字信号保护方案的方案，利用通过密钥信息的预定计算获得的密钥来加密从输入的模拟信号转换的数字信号;以及用于将密钥信息和加密的数字信号记录在记录介质中的信号记录电路。

97. 发明授权

US07565061B2 Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium 失效
公开(公告)号：US07565061B2
公开(公告)日：2009-07-21
申请号：US10733319
申请日：2003-12-12
申请人： Masafumi Nakamura , Toshifumi Takeuchi
发明人： Masafumi Nakamura , Toshifumi Takeuchi
IPC分类号： H04N7/26 , H04N7/00 , H04N9/475 , H04N7/12
CPC分类号： H04N21/236 , G11B20/10527 , G11B27/034 , G11B27/105 , G11B27/3063 , G11B2220/2545 , H04N5/85 , H04N9/8042 , H04N9/8205 , H04N9/8216 , H04N21/434
摘要： A method of reproducing data from a recording medium, wherein each of the data includes reference time information indicating a reference time and packet information, includes the steps of rearranging the data on a time axis such that a time interval between adjacent data is equal to a difference between respective reference times indicated by the reference time information of the adjacent data, and outputting the rearranged data at an output rate equal to or greater than a data rate of the data. The packet information includes at least video packet information into which a compressed video signal data stream is divided, and audio packet information into which a compressed audio signal data stream is divided.

98. 发明申请

US20080225652A1 TRANSMITTING AND RECORDING METHOD, REPRODUCING METHOD, AND REPRODUCING APPARATUS OF INFORMATION AND ITS RECORDING MEDIUM 失效
标题翻译：发送和记录方法，再现方法和再现信息及其记录介质的设备
公开(公告)号：US20080225652A1
公开(公告)日：2008-09-18
申请号：US12058911
申请日：2008-03-31
申请人： Masafumi NAKAMURA , Toshifumi Takeuchi
发明人： Masafumi NAKAMURA , Toshifumi Takeuchi
IPC分类号： G11B27/10
CPC分类号： H04N21/236 , G11B20/10527 , G11B27/034 , G11B27/105 , G11B27/3063 , G11B2220/2545 , H04N5/85 , H04N9/8042 , H04N9/8205 , H04N9/8216 , H04N21/434
摘要： A method of reproducing data from a recording medium, each of the data including reference time information indicating a reference time and including packet data, the method including: reproducing the data from the recording medium; obtaining a difference between respective reference times indicated by the reference time information of the reproduced adjacent data; rearranging the data on a time axis such that a time interval between adjacent data is equal to the obtained reference time difference; and outputting the rearranged data.
摘要翻译：一种从记录介质再现数据的方法，每个数据包括指示参考时间并包括分组数据的参考时间信息，该方法包括：从记录介质再现数据; 获得由所再现的相邻数据的参考时间信息指示的各个参考时间之间的差; 在时间轴上重新排列数据，使得相邻数据之间的时间间隔等于获得的参考时间差; 并输出重新排列的数据。

99. 发明授权

US07379547B2 Reproducing apparatus, recording apparatus and display apparatus 有权
标题翻译：再现装置，记录装置和显示装置
公开(公告)号：US07379547B2
公开(公告)日：2008-05-27
申请号：US10677359
申请日：2003-10-03
申请人： Osamu Kawamae , Toshifumi Takeuchi , Hiroyuki Kimura , Takao Arai , Hiroshi Yoshiura
发明人： Osamu Kawamae , Toshifumi Takeuchi , Hiroyuki Kimura , Takao Arai , Hiroshi Yoshiura
IPC分类号： H04L9/16
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A reproducing method and apparatus for receiving and reproducing data and outputting the data into an external device. After reproducing the data, a descrambler corresponding to a type of the reproduced data is selected from a plurality of descramblers and the external device is authenticated by a selected authenticator which is included in a plurality of authenticators for authenticating the external device and corresponds to the selected descrambler, and the data is outputted.
摘要翻译：一种用于接收和再现数据并将数据输出到外部设备的再现方法和装置。在再现数据之后，从多个解扰器中选择对应于再现数据类型的解扰器，并且外部设备由包括在多个认证器中的选择认证器进行认证，用于认证外部设备并对应于所选择的解扰器，并输出数据。

100. 发明授权

US07336786B2 Reproduction apparatus 有权
标题翻译：繁殖装置
公开(公告)号：US07336786B2
公开(公告)日：2008-02-26
申请号：US10959081
申请日：2004-10-07
申请人： Masaru Takahashi , Toshifumi Takeuchi , Osamu Kawamae
发明人： Masaru Takahashi , Toshifumi Takeuchi , Osamu Kawamae
IPC分类号： H04N7/167
CPC分类号： H04N5/913 , H04N5/85 , H04N9/8042 , H04N2005/91335 , H04N2005/91364
摘要： Information or contents cannot be reproduced even from a regular storage medium which is encrypted in accordance with a predetermined encryption system, due to erroneous detection of watermarks. Detection of the watermarks and restriction over reproduction depending thereon is conducted only in a case where the medium is not encrypted. In case of detecting that the data is not encrypted in accordance with a predetermined encryption system by an encryption detection circuit and when the watermarks are detected by a watermark detection circuit, reproduction of the data is stopped by a reproduction restricting circuit. In a case that it is detected to be encrypted in the predetermined encryption system by the encryption detection circuit, the reproduction restricting circuit will not stop the reproduction thereof.
摘要翻译：由于水印的错误检测，信息或内容甚至不能由根据预定加密系统加密的常规存储介质再现。水印的检测和依赖于其的再现的限制仅在介质未加密的情况下进行。在检测到数据未被加密检测电路根据预定加密系统加密的情况下，并且当水印检测电路检测到水印时，由再现限制电路停止数据的再现。在通过加密检测电路检测到在预定加密系统中被加密的情况下，再现限制电路将不会停止其再现。

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