公开(公告)号：US20090067535A1

公开(公告)日：2009-03-12

申请号：US11817400

申请日：2006-04-06

申请人： Toshikazu Koudo ,  Kazuhiro Mihara ,  Masaharu Tsujimura ,  Etsuto Nakatsu

发明人： Toshikazu Koudo ,  Kazuhiro Mihara ,  Masaharu Tsujimura ,  Etsuto Nakatsu

IPC分类号： H04L27/00

CPC分类号： H04N21/4344 ,  H04L12/2803 ,  H04L12/2838 ,  H04L2012/2849 ,  H04N21/23608 ,  H04N21/4305 ,  H04N21/43615 ,  H04N21/43632

摘要： A transfer device for receiving packets that were transmitted by a device in a home network onto a transmission path, and transfers the received packet to another device. The stream to be transferred is classified into three types: (i) a type where each of packets constituting the stream is not attached with a time stamp; (ii) a type where each packet is attached with a valid time stamp; and (iii) a type where each packet is attached with an invalid time stamp. The transfer device determines, from among the three types, the type of the stream to be transferred, based on a transfer source device, transfer destination device, and provider of the stream. The transfer device then selects a transmission method by which to transfer the stream, among the time stamp attachment transmission method and the PCR reference transmission method.

摘要翻译： 一种用于接收由家庭网络中的设备发送到传输路径上的分组的传送设备，并将接收的分组传送到另一设备。 要传输的流被分为三种类型：（i）其中每个构成流的分组不附加时间戳的类型; （ii）每个分组附有有效时间戳的类型; 和（iii）每个分组附有无效时间戳的类型。 传输设备根据传输源设备，传送目的地设备和流的提供者，从三种类型中确定要传送的流的类型。 然后，在时间戳附着发送方法和PCR参考发送方法之间，转移装置选择传输流的传输方法。

公开(公告)号：US5119243A

公开(公告)日：1992-06-02

申请号：US452380

申请日：1989-12-19

申请人： Hiroaki Shimazaki ,  Toyohiko Matsuta ,  Etsuto Nakatsu ,  Masafumi Shimotashiro ,  Masaaki Kobayashi

发明人： Hiroaki Shimazaki ,  Toyohiko Matsuta ,  Etsuto Nakatsu ,  Masafumi Shimotashiro ,  Masaaki Kobayashi

IPC分类号： G11B5/09 ,  G11B20/10 ,  G11B20/14 ,  H03M5/20

CPC分类号： G11B20/10222 ,  G11B20/10009 ,  G11B20/1403 ,  G11B20/1496 ,  G11B5/09 ,  H03M5/20

摘要： A digital signal magnetic recording/reproducing apparatus modulates a digital signal with a carrier and performs recording/reproducing of the modulated signal. The carrier frequency is made equal to the clock frequency multiplied by a factor (N/M), where N and M are integers. The carrier and clock are reproduced using only one phase locked loop. When the carrier-modulated signal is recorded/reproduced using a magnetic recording medium, the phase of the modulated signal is shifted relative to the phase of the carrier. Shifting the clock phase before using the clock for decoding the demodulated signal prevents a degradation of error rate. By periodically inserting a clock phase reference signal in the recording signal, accuracy of adjustment of clock phase is improved.

摘要翻译： 数字信号磁记录/再现装置用载波调制数字信号并执行调制信号的记录/再现。 载波频率等于时钟频率乘以因子（N / M），其中N和M是整数。 载波和时钟仅使用一个锁相环进行复制。 当使用磁记录介质记录/再现载波调制信号时，调制信号的相位相对于载波的相位移位。 在使用时钟解码解调信号之前切换时钟相位可防止错误率的降低。 通过在记录信号中周期性地插入时钟相位参考信号，提高了时钟相位的调整精度。

公开(公告)号：US20080031597A1

公开(公告)日：2008-02-07

申请号：US11628578

申请日：2005-07-11

申请人： Etsuto Nakatsu

发明人： Etsuto Nakatsu

IPC分类号： H04N7/26

CPC分类号： H04N5/765 ,  G11B27/034 ,  G11B27/329 ,  G11B2220/216 ,  G11B2220/2516 ,  G11B2220/2541 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/455 ,  H04N5/781 ,  H04N5/85 ,  H04N9/8042

摘要： The present invention provides a stream recording/reproducing apparatus that records a stream onto a first recording medium without using extra recording capacity of such first recording medium, and then dubs such stream onto a second recording medium at high speed while minimizing the degradation in image quality and sound quality. The stream recording/reproducing apparatus of the present invention includes: an analysis unit (6) that judges whether or not a stream (101) is compliant with the logic specification of a second recording medium (7); a management information recording unit (8) that records a result of the judgment onto a first recording medium (3); a TS recording processing unit (2) that records the stream (101) onto the medium (3); processing units (14) and (15) that convert the stream (101) recorded on the medium (3) into a stream that is compliant with the logic specification of the medium (7) in the case where the stream (101) is not compliant with the logic specification of the medium (7); and a PS recording processing unit (17) that records the converted stream onto the medium (7).

摘要翻译： 本发明提供了一种流记录/再现装置，其将流量记录在第一记录介质上，而不需要使用这种第一记录介质的额外的记录容量，然后将该流高速转录到第二记录介质上，同时最小化图像质量的降低 和音质。 本发明的流记录/再现装置包括：分析单元（6），其判断流（101）是否符合第二记录介质（7）的逻辑规范; 管理信息记录单元，其将所述判断结果记录在第一记录介质上; 将流（101）记录到介质（3）上的TS记录处理单元（2）; 在流（101）不是的情况下，将记录在介质（3）上的流（101）转换为符合介质（7）的逻辑指定的流的处理单元（14）和（15） 符合介质（7）的逻辑规范; 以及将转换的流记录到介质（7）上的PS记录处理单元（17）。

公开(公告)号：US20070031125A1

公开(公告)日：2007-02-08

申请号：US10596283

申请日：2004-12-09

申请人： Etsuto Nakatsu

发明人： Etsuto Nakatsu

IPC分类号： H04N7/26

CPC分类号： G11B27/034 ,  G11B20/10 ,  H04N5/76 ,  H04N5/765 ,  H04N5/775 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N9/7921 ,  H04N9/8042

摘要： To reduce the waste of the storage capacity of a storage medium as much as possible while realizing high-speed dubbing. A data processor can write a data stream on each of storage media of first and second types and includes: a receiving section for receiving a first data stream; a converting section for converting the first data stream into a second data stream; a processing section for writing the first and second data streams on the first type of storage medium; a playback section for playing back a content based on the first data stream; and an instruction receiving section for receiving, from a user, an instruction on whether the content needs to be dubbed or not. If the user has instructed that the content be dubbed, the processing section reads the second data stream from the first type of storage medium, writes the second data stream on the second type of storage medium, and then deletes the second data stream from the first type of storage medium.

摘要翻译： 尽可能地减少存储介质的存储容量的浪费，同时实现高速配音。 数据处理器可以在第一和第二类型的每个存储介质上写入数据流，并且包括：接收部分，用于接收第一数据流; 转换部分，用于将第一数据流转换成第二数据流; 处理部，用于将第一和第二数据流写入第一类型的存储介质; 播放部分，用于基于第一数据流播放内容; 以及指令接收部分，用于从用户接收关于是否需要被转录的内容的指令。 如果用户已经指示内容被复制，则处理部分从第一类型的存储介质读取第二数据流，将第二数据流写入第二类型的存储介质，然后从第一数据流中删除第二数据流 存储介质类型。

公开(公告)号：US5255127A

公开(公告)日：1993-10-19

申请号：US724888

申请日：1991-07-02

申请人： Etsuto Nakatsu ,  Hiroaki Shimazaki ,  Haruo Ohta ,  Masaaki Kobayashi

发明人： Etsuto Nakatsu ,  Hiroaki Shimazaki ,  Haruo Ohta ,  Masaaki Kobayashi

IPC分类号： G11B20/10 ,  H03M13/39 ,  H04L1/00 ,  G11B5/09 ,  G11B20/06

CPC分类号： H04L1/0047 ,  G11B20/10009 ,  H03M13/39 ,  H04L1/0054

摘要： In transmission or recording of a digital signal by means of digital amplitude and phase modulation, particularly recording into and reproducing the same from the a magnetic recording medium, a digital amplitude/phase modulated signal to be demodulated is commonly affected by the non-linear amplitude characteristics and the effects of unwanted jitter and envelope variation. As the result, the error rate of decoded data will be increased. For compensation, the Viterbi decoding technique is employed with the use of a weighted distance value calculated by multiplying an Euclidean distance between the signal point of a reproduction signal and the datum point of each code by a positive weighting factor which is determined smaller when the code datum point is located further from the origin point of a coordinate system. Accordingly, the weighted distance of each reproduction signal point from its corresponding datum point can approximately be uniform thus ensuring less error decoding in general.

公开(公告)号：US07751686B2

公开(公告)日：2010-07-06

申请号：US10088037

申请日：2001-07-09

申请人： Kenji Morimoto ,  Hirofumi Nakagaki ,  Yoshiyasu Kuramoto ,  Atsuo Ochi ,  Etsuto Nakatsu

发明人： Kenji Morimoto ,  Hirofumi Nakagaki ,  Yoshiyasu Kuramoto ,  Atsuo Ochi ,  Etsuto Nakatsu

IPC分类号： H04N5/783

CPC分类号： G11B20/10 ,  G11B2020/10537 ,  G11B2020/10981 ,  H04N5/78263 ,  H04N5/783 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/8227

摘要： In the case where rate information is not transmitted on an input bit stream, it was difficult to efficiently record the input bit stream in accordance with the rate of the input bit stream. Therefore, a data recording apparatus is realized which comprises: signal processing means of coding the input bit stream to a recording signal; a packet counter section that counts the number of packets serving as constituting units of the input bit stream, for a fixed time period; a system controller that controls a recording rate on a tape-like recording medium; and recording means of recording the recording signal on the tape-like recording medium, and which is configured so as to calculate the rate of the input bit stream from an output of the packet counter section to control the recording rate, whereby recording can be efficiently conducted in accordance with the rate of an input signal.

摘要翻译： 在不在输入比特流上传送速率信息的情况下，难以根据输入比特流的速率有效地记录输入比特流。 因此，实现了一种数据记录装置，其包括：将输入比特流编码为记录信号的信号处理装置; 分组计数器部分，用于对固定时间段内用作输入比特流的构成单元的分组数进行计数; 系统控制器，其控制带状记录介质上的记录速率; 以及记录装置，用于将记录信号记录在带状记录介质上，并且被配置为从分组计数器部分的输出计算输入比特流的速率以控制记录速率，由此可以有效地进行记录 根据输入信号的速率进行。

公开(公告)号：US20090092381A1

公开(公告)日：2009-04-09

申请号：US11914771

申请日：2006-05-12

申请人： Etsuto Nakatsu

发明人： Etsuto Nakatsu

IPC分类号： H04N5/00

CPC分类号： G11B23/40 ,  G11B7/0037 ,  G11B7/12 ,  G11B7/24038 ,  G11B27/24

摘要： A recording apparatus according to the present invention includes: a recording section for generating a first recording signal for recording visual information, showing the contents of data to be written on an information storage medium in a visible form, on the information storage medium; and a head section for recording the visual information on the information storage medium based on the first recording signal by using predetermined address information, which is stored on the information storage medium, as a reference for aligning the visual information being recorded such that the visual information is directly visible to a user. The recording section further generates a second recording signal for writing location information, showing where the visual information has been recorded on the information storage medium, on the information storage medium. And the head section writes the location information on the information storage medium based on the second recording signal.

摘要翻译： 根据本发明的记录装置包括：记录部分，用于产生用于记录视觉信息的第一记录信号，以可见的形式显示要写入信息存储介质的数据的内容; 以及头部，其通过使用存储在所述信息存储介质上的预定地址信息，基于所述第一记录信号将所述视觉信息记录在所述信息存储介质上作为用于对准所记录的视觉信息的参考，使得所述视觉信息 是直接对用户可见的。 记录部分还产生第二记录信号，用于将信息存储介质上的视觉信息已经被记录在信息存储介质上的位置信息写入。 并且头部部分基于第二记录信号将位置信息写入信息存储介质。

公开(公告)号：US5062007A

公开(公告)日：1991-10-29

申请号：US450997

申请日：1989-12-15

申请人： Etsuto Nakatsu ,  Hiroaki Shimazaki ,  Toyohiko Matsuta ,  Masafumi Shimotashiro ,  Masaaki Kobayashi

发明人： Etsuto Nakatsu ,  Hiroaki Shimazaki ,  Toyohiko Matsuta ,  Masafumi Shimotashiro ,  Masaaki Kobayashi

IPC分类号： G11B5/09 ,  G11B20/10

CPC分类号： G11B20/10

摘要： A digital signal magnetic recording/reproducing apparatus converts a digital signal into a multi-value digital signal, followed by recording/reproducing the quadrature biphase modulated multi-value quadrature amplitude modulated signal. By using a multi-value quadrature amplitude modulation, a direct current component in the recorded signal can be eliminated, and the utilization efficiency of the recording frequency band of the digital signal magnetic recording/reproducing apparatus can be improved. Also, with respect to the amplitude non-linear characteristic which occurs in the magnetic recording/reproducing process, by providing a compensating circuit during the mapping before recording or after reproducing and demodulating, the deterioration of the S/N ratio of the reproduced and demodulated signal can be reduced to decrease the errors in the decoded data. Furthermore by bias-recording the multi-value quadrature amplitude modulation signal, the non-linearity of the electromagnetic conversion system is alleviated to decrease the deterioration of the S/N ratio due to distortion, thereby making the application of the modulation scheme more reliable.

摘要翻译： 数字信号磁记录/再现装置将数字信号转换为多值数字信号，随后记录/再现正交双相调制多值正交幅度调制信号。 通过使用多值正交幅度调制，可以消除记录信号中的直流分量，并且可以提高数字信号磁记录/再现装置的记录频带的利用效率。 此外，关于在磁记录/再现处理中发生的振幅非线性特性，通过在记录之前或再现和解调之后的映射期间提供补偿电路，再现和解调的S / N比的恶化 可以减少信号以减少解码数据中的误差。 此外，通过对多值正交幅度调制信号进行偏置记录，可以减轻电磁转换系统的非线性，以减少由于失真引起的S / N比的恶化，从而使得调制方案的应用更可靠。

公开(公告)号：US06711345B1

公开(公告)日：2004-03-23

申请号：US09424813

申请日：2000-03-21

申请人： Yasuaki Tohyama ,  Etsuto Nakatsu ,  Atsuo Ochi ,  Naoshi Usuki

发明人： Yasuaki Tohyama ,  Etsuto Nakatsu ,  Atsuo Ochi ,  Naoshi Usuki

IPC分类号： H04N591

CPC分类号： G11B27/3027 ,  G11B5/0086 ,  G11B5/09 ,  G11B7/00 ,  G11B15/087 ,  G11B15/4675 ,  G11B20/10527 ,  G11B20/1208 ,  G11B27/005 ,  G11B27/107 ,  G11B27/323 ,  G11B27/324 ,  G11B2220/90 ,  G11B2220/91 ,  H04N5/783 ,  H04N9/8042

摘要： A data stream is recorded and reproduced and a recording medium for the same are adapted to record in a control track an identification mark for identifying a specific track within a unit of plural tracks by superposing the identification mark upon a control pulse. A magnetic head travels along a predetermined path in the unit of plural tracks during a high-speed playback operation by phase-locking a rotational phase signal of a cylinder with a divided signal of the control pulse having a specific phase according to the reproduced identification mark.

摘要翻译： 记录和再现数据流，并且其记录介质适于在控制轨迹中记录用于通过在识别标记上叠加控制脉冲来识别多个轨道的单位内的特定轨迹的识别标记。 在高速重放操作期间，磁头沿着多个磁道单位的预定路径行进，通过根据再现的识别标记对具有特定相位的控制脉冲的分频信号进行相位锁定， 。

公开(公告)号：US5465158A

公开(公告)日：1995-11-07

申请号：US409964

申请日：1995-03-24

申请人： Yoshihiro Morioka ,  Masaaki Kobayashi ,  Mutsuyuki Okayama ,  Etsuto Nakatsu ,  Kohei Suzuki

发明人： Yoshihiro Morioka ,  Masaaki Kobayashi ,  Mutsuyuki Okayama ,  Etsuto Nakatsu ,  Kohei Suzuki

IPC分类号： G11B5/53 ,  H04N9/797 ,  H04N9/80 ,  H04N9/815 ,  H04N9/82 ,  H04N9/83 ,  H04N9/79

CPC分类号： H04N9/83 ,  H04N9/8205

摘要： In a video tape recorder of the color under recording type, in which a low frequency band converted carrier chrominance signal is recorded together with an FM luminance signal, another FM modulator is provided for modulating a wide band chrominance signal. An additional head records the FM chrominance signal on at least a part of a track on which video signal has been recorded in the color under recording. In reproduction, it is checked whether the FM chrominance signal is reproduced or not for selecting the FM chrominance signal or the color under recorded carrier chrominance signal as a reproduced chrominance signal output.

摘要翻译： 在与FM亮度信号一起记录低频带转换载波色度信号的记录类型的彩色录像机中，提供另一FM调制器用于调制宽带色度信号。 附加的头在记录有颜色的视频信号的轨道的至少一部分上记录FM色度信号。 在再现中，检查FM色度信号是否被再现，用于选择FM色度信号或记录载波色度信号下的颜色作为再现的色度信号输出。