公开(公告)号：US5511095A

公开(公告)日：1996-04-23

申请号：US45426

申请日：1993-04-13

申请人： Takeo Inoue ,  Hideharu Nishida ,  Shozo Sugishita ,  Akira Tsukihashi

发明人： Takeo Inoue ,  Hideharu Nishida ,  Shozo Sugishita ,  Akira Tsukihashi

IPC分类号： H04B14/06

CPC分类号： H04B14/068

摘要： The present invention relates to an audio signal coding and decoding device for coding and decoding an audio signal using an adaptive differential coding system. The audio signal coding and decoding device according to the present invention comprises an adaptive differential pulse code modulation coding device for coding an audio signal, an adaptive differential pulse code modulation decoding device for decoding the audio signal coded, an integrator provided in the preceding stage of the coding device and for decreasing the variation between unit samples of the input audio signal of the coding device, and a differentiator provided in the succeeding stage of the decoding device and for processing the audio signal decoded by the decoding device so that the variation decreased by the integrator is restored to the original one. Since the integrator is provided in the preceding stage of the coding device, the variation between the unit samples of the input audio signal of the coding device is decreased. Therefore, a prediction error signal obtained by the coding device is decreased. As a result, quantizer step-size is decreased, resulting in a reduced quantization error.

摘要翻译： 本发明涉及一种使用自适应差分编码系统对音频信号进行编码和解码的音频信号编码和解码装置。 根据本发明的音频信号编码和解码装置包括用于对音频信号进行编码的自适应差分脉冲编码调制编码装置，用于对编码的音频信号进行解码的自适应差分脉冲编码调制解码装置，在前一级提供的积分器 编码装置，用于减少编码装置的输入音频信号的单元样本与解码装置的后级中提供的微分器之间的变化，并且用于处理由解码装置解码的音频信号，使得变化减小 集成商恢复原来的。 由于在编码装置的前级提供积分器，所以编码装置的输入音频信号的单位样本之间的变化减小。 因此，由编码装置获得的预测误差信号减小。 结果，量化器步长减小，导致量化误差降低。

公开(公告)号：US07796495B2

公开(公告)日：2010-09-14

申请号：US11198113

申请日：2005-08-05

申请人： Akira Tsukihashi ,  Tsuyoshi Yamamoto ,  Satoru Miyoshi ,  Shinichi Nakahashi

发明人： Akira Tsukihashi ,  Tsuyoshi Yamamoto ,  Satoru Miyoshi ,  Shinichi Nakahashi

IPC分类号： G11B3/70 ,  G11B5/84 ,  G11B7/26 ,  G11B7/20 ,  G01D15/14 ,  B41J2/435

CPC分类号： G11B7/0037 ,  G11B7/24038 ,  G11B7/24062 ,  G11B7/24094

摘要： An optical disk comprising two layers including a signal recording layer and an image recording layer further comprises a metal reflective layer formed on a surface of the image recording layer on the incidence side of laser light. The image recording layer is capable of forming a visible image in response to an increase in temperature caused by application of laser light to the metal reflective layer. The visible image is capable of being visually observed from a side opposite to the incidence side.

摘要翻译： 包括信号记录层和图像记录层的两层的光盘还包括在激光的入射侧的图像记录层的表面上形成的金属反射层。 响应于通过对金属反射层施加激光而引起的温度升高，图像记录层能够形成可见图像。 可视图像能够从与入射侧相反的一侧目视观察。

公开(公告)号：US07365296B2

公开(公告)日：2008-04-29

申请号：US11427703

申请日：2006-06-29

申请人： Akira Tsukihashi ,  Shigeru Nakamura ,  Misao Kuramochi ,  Mitsuhiro Hiruma ,  Michiyoshi Sawada ,  Hiromitsu Kondo

发明人： Akira Tsukihashi ,  Shigeru Nakamura ,  Misao Kuramochi ,  Mitsuhiro Hiruma ,  Michiyoshi Sawada ,  Hiromitsu Kondo

IPC分类号： G02B7/04

CPC分类号： H03F3/08

摘要： In the optical pickup unit configured to guide a laser beam emitted from a laser source to an objective lens, to converge the laser beam with the objective lens to be irradiated to a disk, and to guide the laser beam reflected and returned by the disk to the photo detector including a light reception region constituted by a plurality of segments, the photo detector is disposed with each amplifier corresponding to each segment of the light reception region, is disposed with each output terminal that outputs each light reception output corresponding to each segment from the photo detector via each amplifier, and is disposed with an output setting circuit that sets each light reception output from each of the output terminals by changing the gain of each of the amplifiers and/or by attenuating the input or output of each of the amplifiers with an attenuator.

摘要翻译： 在被配置为将从激光源发射的激光束引导到物镜的光学拾取单元中，将具有要照射到盘的物镜的激光束会聚并将由盘反射和返回的激光束引导到 光检测器包括由多个段构成的光接收区域，光检测器设置有与光接收区域的每个段对应的每个放大器，每个输出端子输出与每个段对应的每个光接收输出 经由每个放大器的光电检测器，并且设置有输出设置电路，其通过改变每个放大器的增益来设置每个输出端子的每个光接收输出和/或通过衰减每个放大器的输入或输出 与衰减器。

公开(公告)号：US06430127B1

公开(公告)日：2002-08-06

申请号：US09282336

申请日：1999-03-31

申请人： Akira Tsukihashi

发明人： Akira Tsukihashi

IPC分类号： G11B700

CPC分类号： G11B20/10527 ,  G11B7/0037 ,  G11B27/105 ,  G11B27/11 ,  G11B2020/10768 ,  G11B2220/213 ,  G11B2220/2545 ,  G11B2220/65

摘要： Read data is given reproduction processing, including data correction, in synchronism with a bit clock. A disk with signals recorded thereon according to a constant linear velocity method is able to be rotated under control according to a constant angular velocity method. The rotation controller is set free from the control by the operation suspend controller. With this arrangement, the disk continues to rotate even when data writing to the buffer memory is suspended, and, upon resumption of a signal reading from the desk, signal processing is promptly carried out to a signal read from the disk, irrespective of the radial dimension of the point from which the signal was read on the disk.

摘要翻译： 读取数据被赋予与位时钟同步的再现处理，包括数据校正。 根据恒定线速度方法记录有信号的盘能够根据恒定角速度方法在控制下旋转。 旋转控制器由操作暂停控制器设置不受控制。 通过这种布置，即使当缓冲存储器的数据写入被暂停时，盘继续旋转，并且当从桌面恢复信号时，信号处理被迅速地执行到从盘读取的信号，而不考虑径向 在磁盘上读取信号的点的尺寸。

公开(公告)号：US07184379B2

公开(公告)日：2007-02-27

申请号：US10080994

申请日：2002-02-20

申请人： Akira Tsukihashi ,  Toru Tanaka ,  Yasushi Hanamoto ,  Shinji Seki ,  Toshihiko Hiroshima ,  Yutaka Imamura

发明人： Akira Tsukihashi ,  Toru Tanaka ,  Yasushi Hanamoto ,  Shinji Seki ,  Toshihiko Hiroshima ,  Yutaka Imamura

IPC分类号： G11B7/0045

CPC分类号： G11B20/10527 ,  G11B19/00 ,  G11B2020/10685 ,  G11B2020/10703 ,  G11B2020/10731 ,  G11B2020/1074 ,  G11B2020/10814

摘要： An operation for recording a recording signal onto a disk (1) is interrupted, when an amount of signal data stored in a buffer RAM (11) for temporarily storing the recording signal is less than an interruption setting value during performing of the recording operation. Moreover, when the amount of signal data stored in the buffer RAM (11) increases and indicates a resumption setting value, the signal recorded on the disk (1) before interruption is reproduced, and the recording operation is resumed based on the reproduced signal. Moreover, recording properties are detected by the signal reproduced before resumption of recording.

摘要翻译： 当在执行记录操作期间存储在用于临时存储记录信号的缓冲RAM（11）中的信号数据量小于中断设置值时，用于将记录信号记录在盘（1）上的操作被中断。 此外，当存储在缓冲RAM（11）中的信号数据的量增加并且指示恢复设置值时，再现在中断之前记录在盘（1）上的信号，并且基于再现信号重新开始记录操作。 此外，通过在恢复记录之前再现的信号来检测记录属性。

公开(公告)号：US07149167B2

公开(公告)日：2006-12-12

申请号：US09748400

申请日：2000-12-26

申请人： Koji Hayashi ,  Akira Tsukihashi ,  Yasushi Hanamoto ,  Tohru Tanaka

发明人： Koji Hayashi ,  Akira Tsukihashi ,  Yasushi Hanamoto ,  Tohru Tanaka

IPC分类号： G11B5/09

CPC分类号： G11B27/24 ,  G11B19/04 ,  G11B20/10527 ,  G11B27/3027 ,  G11B27/3063 ,  G11B2020/10814 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2529 ,  G11B2220/2545

摘要： A data recorder for recording data that records data in a continuous manner regardless of interruptions. An encoder encodes data that is to be written to a recording medium. A synchronizing circuit synchronizes the data read from the recording medium with the encoded data when the writing of data to the recording medium is interrupted. A first retry determination circuit determines whether an address of the data read from the recording medium and an address of the data provided to the encoder match. A second retry determination circuit determines whether the timing for reading data from recording medium and the timing for encoding data match. A restart circuit restarts the writing of data to the recording medium based on the determinations of the first and second retry determination circuits.

摘要翻译： 用于记录以连续方式记录数据而不管中断的数据的数据记录器。 编码器对要写入记录介质的数据进行编码。 当将记录介质写入中断时，同步电路将从记录介质读取的数据与编码数据同步。 第一重试确定电路确定从记录介质读取的数据的地址和提供给编码器的数据的地址是否匹配。 第二重试确定电路确定从记录介质读取数据的定时和编码数据的定时是否匹配。 基于第一和第二重试确定电路的确定，重新启动电路重新开始将数据写入记录介质。

公开(公告)号：US07149164B2

公开(公告)日：2006-12-12

申请号：US10376970

申请日：2003-02-27

申请人： Akira Tsukihashi ,  Katsuki Hattori

发明人： Akira Tsukihashi ,  Katsuki Hattori

IPC分类号： G11B7/00

CPC分类号： G11B19/02 ,  G11B7/00745 ,  G11B20/1217 ,  G11B20/1262 ,  G11B27/034 ,  G11B27/24 ,  G11B2020/1275 ,  G11B2020/1292 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/2583

摘要： An optical disc apparatus which realizes high density disc recording using an existing disc and an existing recording signal processor. When recording data on a recordable disc corresponding to an existing first standard, either one of first and second recording signal processors 9 and 10 can be selectively used, so that data recording in the high density recording mode which allows data generated by the second recording signal processor 10 to be recorded on a recordable disc corresponding to the first standard can be performed. As a result, the existing second standard data format can be used with regard to a disc corresponding to the existing first standard, so that recording can be performed at a higher density than when the first standard data format is used for the same disc, thereby increasing recording capacity.

摘要翻译： 实现使用现有盘的高密度盘记录和现有记录信号处理器的光盘装置。 当在与现有的第一标准对应的可记录盘上记录数据时，可以选择性地使用第一和第二记录信号处理器9和10中的任何一个，从而以允许由第二记录信号产生的数据的高密度记录模式的数据记录 可以执行要记录在与第一标准相对应的可记录盘上的处理器10。 结果，现有的第二标准数据格式可以用于与现有的第一标准相对应的盘，使得可以以比同一盘使用第一标准数据格式更高的密度执行记录，从而 增加记录容量。

公开(公告)号：US07102974B2

公开(公告)日：2006-09-05

申请号：US09799400

申请日：2001-03-05

申请人： Akira Tsukihashi ,  Yasushi Hanamoto ,  Katsuki Hattori

发明人： Akira Tsukihashi ,  Yasushi Hanamoto ,  Katsuki Hattori

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/0045

摘要： To provide a method for optimizing the optical output from an optical head when recording data onto an optical disk, each time a suspension of data recording onto the disk is determined, the optical head reads data recorded onto the disk before the suspension, and recording state of this data is judged. Based on the judged recording state, the optical output from the optical head to be emitted when resuming the data recording is controlled. A timing at which to suspend data recording can be desirably set, so that the recording state of the recorded data in the disk can be judged at desirable timing in data recording operation, so that the optical output from the optical head is controlled based on the judged recording state.

摘要翻译： 为了提供一种在将数据记录在光盘上时优化光学头的光学输出的方法，每当确定暂停数据记录到盘上时，光头读取在暂停之前记录在盘上的数据，并记录状态 的数据被判断。 基于所判断的记录状态，控制恢复数据记录时从发出的光头的光输出。 可以期望设置暂停数据记录的定时，使得可以在数据记录操作期间在期望的定时判断盘中记录数据的记录状态，从而基于光头来控制来自光头的光输出 判断记录状态。

公开(公告)号：US07099246B2

公开(公告)日：2006-08-29

申请号：US10066056

申请日：2002-01-31

申请人： Koji Hayashi ,  Akira Tsukihashi

发明人： Koji Hayashi ,  Akira Tsukihashi

IPC分类号： G11B7/0045 ,  G06F3/06

CPC分类号： G11B20/10527 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/0946 ,  G11B19/04 ,  G11B19/06 ,  G11B2020/10814 ,  G11B2020/1269

摘要： A data recording equipment that accurately restarts the writing of data to an optical disc after data recording is interrupted. The equipment interrupts recording when detecting an external shock or when predicting the occurrence of a buffer underrun error. The equipment includes a counter, which counts execution of recording data on the optical disc and generates a count value indicating the amount of data that is recorded, and a control unit, which is connected to the counter to hold the count value of the counter immediately before an interruption when the recording of data is interrupted. The unit re-irradiates a position on the optical disc, on which data prior to the data recorded immediately before the interruption is recorded. The init controls restart of the recording based on the held count value while recognizing the position of the data on the optical disc.

摘要翻译： 在数据记录之后，将数据记录到光盘上的数据记录设备正确地重新开始。 当检测到外部冲击时，或者当预测出现缓冲器欠载错误时，设备将中断记录。 该设备包括计数器，其对光盘上的记录数据的执行进行计数，并产生指示记录的数据量的计数值;以及控制单元，其连接到计数器以立即保持计数器的计数值 在数据记录中断之前中断。 该单元重新照射光盘上的一个位置，在记录紧接在中断之前的数据之前的数据上。 在识别光盘上的数据的位置的同时，初始化基于保持的计数值控制重新开始记录。

公开(公告)号：US20050099929A1

公开(公告)日：2005-05-12

申请号：US10986050

申请日：2004-11-10

申请人： Tsuyoshi Yamamoto ,  Katsuki Hattori ,  Shinji Kobayashi ,  Hiroshi Watanabe ,  Masato Fuma ,  Akira Tsukihashi

发明人： Tsuyoshi Yamamoto ,  Katsuki Hattori ,  Shinji Kobayashi ,  Hiroshi Watanabe ,  Masato Fuma ,  Akira Tsukihashi

IPC分类号： G11B7/0037 ,  G11B7/0045 ,  G11B7/24 ,  G11B23/40 ,  G11B3/74

CPC分类号： G11B23/40 ,  G11B7/0037 ,  G11B7/24038

摘要： An optical disk to which a laser ray irradiated from an optical pickup device equipped in an optical disk recording and replaying apparatus is incident, comprises two signal layers including a first signal layer and a second signal layer formed from a light incident surface side, wherein a visible image can be formed in the second signal layer (1D) by a laser ray irradiated from the light incident surface side.

摘要翻译： 从配备有光盘记录和重放装置的光拾取装置照射的激光束入射的光盘包括两个信号层，包括由光入射表面侧形成的第一信号层和第二信号层，其中， 可以通过从光入射面侧照射的激光，在第二信号层（1D）中形成可见光图像。