公开(公告)号：US20050015616A1

公开(公告)日：2005-01-20

申请号：US10892742

申请日：2004-07-16

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: G11B20/00 ,  H04N5/85 ,  H04N5/913 ,  H04L9/00 ,  G06F12/14

CPC classification number: G11B20/00579 ,  G11B20/00086 ,  G11B20/00166 ,  H04N5/85 ,  H04N5/913 ,  H04N2005/91364

Abstract: A system that inhibits unauthorized copying of digital information includes generating a sequence of symbols that has problematic recording or transmission properties and combining the generated sequence of symbols with other symbols. It further includes encoding the combined sequence of symbols into a channel bit sequence by means of a standard encoder, monitoring the digital sum variance of the channel bit sequence, rendering and transmitting a non-problematic channel bit sequence.

Abstract translation: 禁止未经授权复制数字信息的系统包括生成具有有问题的记录或传输属性的符号序列，并将生成的符号序列与其他符号组合。 它还包括通过标准编码器将组合符号序列编码为信道位序列，监视信道位序列的数字和方差，渲染和发送无问题的信道位序列。

公开(公告)号：US06532201B1

公开(公告)日：2003-03-11

申请号：US09542679

申请日：2000-04-03

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: G11B509

CPC classification number: G11B23/281 ,  G11B7/24082 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00449 ,  G11B20/00579 ,  G11B20/00586 ,  G11B20/00927

Abstract: An optical disc has spatial features (notches, bumps, etc.) that intentionally cause read errors if arbitrary data is recorded on the disc in an area where the special features are located. The spatial features are located such that they occur in the center of longer marks or spaces of pre-determined data patterns. This allows pre-determined data patterns to be written and read without a significant number of errors, while arbitrary data patterns will be subject to a significant number of errors, rendering the arbitrary data unreadable. Control Data ECC blocks are partially pre-determined at least in the areas containing decryption keys, while still permitting some arbitrary data to be written in other areas of the Control Data ECC blocks. Therefore, compatibility with existing drives is preserved, without representing a threat of unauthorized copying of stamped discs.

Abstract translation: 如果任意数据被记录在特殊特征位置的区域上，则光盘具有有意引起读取错误的空间特征（凹口，凸起等）。 空间特征被定位成使得它们出现在预定数据模式的更长的标记或间隔的中心。 这允许预先确定的数据模式被写入和读取而没有大量错误，而任意数据模式将遭受大量错误，从而使得任意数据不可读。 控制数据ECC块至少在包含解密密钥的区域中被部分预先确定，同时仍然允许将一些任意数据写入控制数据ECC块的其他区域。 因此，保留与现有驱动器的兼容性，而不会对未经授权的复制冲压的光盘造成威胁。

公开(公告)号：US06310844B1

公开(公告)日：2001-10-30

申请号：US09605949

申请日：2000-06-28

Applicant: Marvin S. Keshner ,  Josh Hogan ,  Richard E. Elder

Inventor： Marvin S. Keshner ,  Josh Hogan ,  Richard E. Elder

IPC: G11B1552

CPC classification number: G11B7/12 ,  G11B7/0045 ,  G11B7/00745 ,  G11B7/013 ,  G11B7/24 ,  G11B20/1258 ,  G11B27/19 ,  G11B27/32

Abstract: An optical disk and compatible optical disk drive enabling erasable (rewritable) optical disks to have the same format and capacity as read-only or (recordable) write-once optical disks. A reference clock track and optional additional prerecorded phase synchronization patters are provided to enable writing of any random sector with frequency and phase matching of a random sector to the preceding and following sectors. The reference clock track and other phase synchronization patterns eliminate the need for preambles and extra space for speed variation. In a first embodiment, a disk has multiple layers, with at least one rewritable data layer and at least one reference layer. A spiral track on a surface of the reference layer has prerecorded patterns to be used for clocking. In a variation of first embodiment, the reference layer is also used for radial tracking control, eliminated the need for predefined tracks in the rewritable data layers. The reference layer is produced using the same technology as for read-only media, and is therefore very precise, low cost, and permanent. An additional laser system may be required to read the reference layer. The rewritable data layers may be unpatterned prior to writing. Alternatively, the rewritable data layers may include embossed sector or block headers to augment clock phase precision. In a second example embodiment, a single circular permanent (non-erasable) clock track is provided on a rewritable medium. The disk is then divided into radial zones, so that within each zone, the angular velocity of the disk is constant. A clock signal from the permanent clock track is then ratioed for each radial zone.

Abstract translation: 光盘和兼容的光盘驱动器，使可擦除（可重写）光盘具有与只读或（可记录）一次写入光盘相同的格式和容量。 提供了参考时钟轨道和可选的附加预记录相位同步模式，以便能够将随机扇区的频率和相位匹配的任何随机扇区写入前一个和后续扇区。 参考时钟轨道和其他相位同步模式消除了前导码的需要和速度变化的额外空间。 在第一实施例中，盘具有多个层，具有至少一个可重写数据层和至少一个参考层。 参考层表面上的螺旋轨迹具有用于计时的预先记录的图案。 在第一实施例的变型中，参考层也用于径向跟踪控制，消除了在可重写数据层中对预定轨迹的需要。 参考层使用与只读介质相同的技术生产，因此非常精确，低成本和永久性。 可能需要额外的激光系统来读取参考层。 可写入数据层可能在写入之前未被图案化。 或者，可重写数据层可以包括压花扇区或块标题，以增加时钟相位精度。 在第二示例实施例中，在可重写介质上提供单个永久（不可擦除）永久（不可擦除）时钟轨道。 然后将磁盘分成径向区域，使得在每个区域内，磁盘的角速度是恒定的。 然后，对于每个径向区域，来自永久时钟轨道的时钟信号成比例。

公开(公告)号：US07339871B2

公开(公告)日：2008-03-04

申请号：US10610933

申请日：2003-06-30

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: B11B7/00

CPC classification number: G11B7/00456

Abstract: An optical disc has spatial features (notches, bumps, etc.) that intentionally distort the analog Read Data signal. For a mark or space that is centered on a spatial feature, the distortion does not affect the resulting binary Read Data signal. If an edge of a mark or space is near the spatial feature, the resulting binary Read Data signal is altered. For calibration, marks or spaces are written adjacent to spatial features, with a range of times for initiating the writes. The result is a range of write times that do not alter the binary Read Data signal. From these known times and spatial locations, it is known when a mark or space must be written to ensure accurate spatial placement.

Abstract translation: 光盘具有故意扭曲模拟读取数据信号的空间特征（凹口，凸起等）。 对于以空间特征为中心的标记或空格，失真不会影响生成的二进制读取数据信号。 如果标记或空格的边缘靠近空间特征，则所得到的二进制读取数据信号被改变。 对于校准，标记或空格与空间特征相邻地写入，具有启动写入的时间范围。 结果是不改变二进制读取数据信号的写入时间范围。 从这些已知时间和空间位置，知道何时必须写入标记或空格以确保准确的空间位置。

公开(公告)号：US20060063985A1

公开(公告)日：2006-03-23

申请号：US11025698

申请日：2004-12-29

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: A61B5/00 ,  G01B9/02

CPC classification number: A61B5/1455 ,  A61B5/0059 ,  A61B5/0066 ,  A61B5/14532

Abstract: A non-invasive imaging and analysis system suitable for measuring concentrations of specific components, such as blood glucose concentration and suitable for non-invasive analysis of defects or malignant aspects of targets such as cancer in skin or human tissue, includes an optical processing system which generates a probe and composite reference beam. The system also includes a means that applies the probe beam to the target to be analyzed and modulates at least some of the components of the composite reference beam such that signals with different frequency content are generated. The system combines a scattered portion of the probe beam and the composite beam interferometrically to simultaneously acquire information from multiple depths within a target. It further includes electronic control and processing systems.

公开(公告)号：US06947364B1

公开(公告)日：2005-09-20

申请号：US09570807

申请日：2000-05-15

Applicant: Josh Hogan ,  Charles Robert Weirauch

Inventor： Josh Hogan ,  Charles Robert Weirauch

IPC: G11B7/24 ,  G11B7/004 ,  G11B7/007 ,  G11B7/09 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B20/00

CPC classification number: G11B27/24 ,  G11B7/007 ,  G11B7/00745 ,  G11B7/0946 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/2562

Abstract: In use of an optical disk such as a Digital Versatile Disk (DVD) it is sometimes desirable to detect if a track jump occurs as quickly as possible after the occurrence. The optical disk format includes a pre-groove track structure which provides the frame work upon which data can be written to and read from the disk. The structure of the pre-groove track is utilized to detect the possible occurrence of an inadvertent track jump as soon as possible and in a time shorter than would be required to detect the track jump using only disk addressing data. The pre-groove track structure may be modified to enhance track jump detection, such as by positional codes in data line Segments of the track, or revolving coding schemes for the addressing data dibits.

Abstract translation: 在使用诸如数字通用盘（DVD）的光盘时，有时期望在发生之后尽可能快地检测轨迹跳跃是否发生。 光盘格式包括预制槽轨道结构，其提供可以将数据写入盘并从盘读取的帧工作。 预制槽轨道的结构被用于尽可能快地检测出无意的轨道跳跃的可能发生，并且在比仅使用盘寻址数据检测轨道跳跃所需的时间更短的时间内。 可以修改预制槽轨道结构以增强轨道跳跃检测，例如通过轨道的数据线段中的位置代码或用于寻址数据双位的旋转编码方案。

公开(公告)号：US20050053109A1

公开(公告)日：2005-03-10

申请号：US10449291

申请日：2003-05-30

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: H01S5/00 ,  H01S5/40

CPC classification number: H01S5/4031 ,  H01S5/0064 ,  H01S5/4012 ,  H01S5/4087

Abstract: An array of multiple laser diodes, each lasing at different wavelengths, the outputs of which laser diodes are combined in an integrated manner, such that all the generated wavelengths are output to a fiber using a single fiber interconnect. The laser diodes are independently modulated by modulating the electrical current of each laser diode. The outputs of the laser diodes are combined by means of waveguides, which may be on the same substrate. The combined multiple wavelength output may be isolated from disruptive optical feedback by means of a single optical isolator.

Abstract translation: 一组多个激光二极管，每个激光不同的波长，激光二极管的输出以集成的方式组合，使得所有产生的波长都使用单个光纤互连输出到光纤。 通过调制每个激光二极管的电流来独立调制激光二极管。 激光二极管的输出通过可能在同一衬底上的波导组合。 组合的多波长输出可以通过单个光隔离器与破坏性光学反馈隔离。

公开(公告)号：US06631108B1

公开(公告)日：2003-10-07

申请号：US09542404

申请日：2000-04-03

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: G11B700

CPC classification number: G11B7/00456

Abstract: An optical disc has spatial features (notches, bumps, etc.) that intentionally distort the analog Read Data signal. For a mark or space that is centered on a spatial feature, the distortion does not affect the resulting binary Read Data signal. If an edge of a mark or space is near the spatial feature, the resulting binary Read Data signal is altered. For calibration, marks or spaces are written adjacent to spatial features, with a range of times for initiating the writes. The result is a range of write times that do not alter the binary Read Data signal. From these known times and spatial locations, it is known when a mark or space must be written to ensure accurate spatial placement.

公开(公告)号：US6064748A

公开(公告)日：2000-05-16

申请号：US8027

申请日：1998-01-16

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: H04N7/08 ,  G06T9/00 ,  H04J3/00 ,  H04N7/081 ,  H04N7/26 ,  G06K9/00

CPC classification number: H04N19/467 ,  H04N19/30

Abstract: A method and apparatus for embedding and retrieving an additional data bitstream in an encoded data stream, such as MPEG. The embedded data is processed and a choice parameter in the header portion of the encoded data stream is varied according to the embedded information bit pattern. Optimization of the encoded data stream is not significantly affected. The embedded information is robust in that the encoded data stream would need to be decoded and re-encoded in order to change a bit of the embedded information. As relevant portions of the header are not scrambled to facilitate searching and navigation through the encoded data stream, the embedded data can generally be retrieved even when the encoded data stream is scrambled.

Abstract translation: 一种用于在诸如MPEG的编码数据流中嵌入和检索附加数据比特流的方法和装置。 处理嵌入数据，并根据嵌入的信息位模式来改变编码数据流的标题部分中的选择参数。 编码数据流的优化没有明显的影响。 嵌入信息是鲁棒的，因为编码数据流将需要被解码和重新编码，以便改变嵌入信息的一部分。 由于标题的相关部分不被加扰以促进通过编码数据流的搜索和导航，所以即使编码数据流被加扰，通常可以检索嵌入数据。

公开(公告)号：US5901157A

公开(公告)日：1999-05-04

申请号：US744717

申请日：1996-10-29

Applicant: Josh Hogan

Inventor： Josh Hogan

IPC: G06F11/10 ,  G11B20/18 ,  H03M13/29 ,  H03M13/00

CPC classification number: G11B20/1833 ,  H03M13/2906

Abstract: Frequently only a portion of the data within an error correction data block is required to be changed or overwritten. For example in optical data storage on DVD type discs, an error correction block contains 32K bytes of user data, however, a computer system typically operates on 2K byte sectors and therefore frequently does not involve the full 32K byte block. In these circumstances the old data block must be read, error corrected, the new data combined with the old and new error correction redundancy bytes calculated. This invention is a method and apparatus of improving access time when only a portion of the data in an error correction data block is modified. The contributions to the redundancy bytes in the codewords, due to the old data to be modified and the new data to be written, are calculated. Required modifications to the old redundancy bytes can be calculated by parity checking (multiple exclusive or-ing), or by matrix operations and implemented by exclusive or-ing the modifications with the old redundancy bytes. This modification process need only involve the portion of the data that is to be modified and can make the new redundancy bytes available rapidly, thereby improving access time.

Abstract translation: 纠错数据块内的数据通常只需要更改或覆盖一部分。 例如在DVD型光盘上的光学数据存储中，纠错块包含32K字节的用户数据，然而，计算机系统通常在2K字节扇区上操作，因此经常不涉及完整的32K字节块。 在这种情况下，旧的数据块必须被读取，纠正错误，新数据结合旧的和新的纠错冗余字节计算。 本发明是一种在纠错数据块中只有一部分数据被修改时改善访问时间的方法和装置。 计算由于要修改的旧数据和要写入的新数据而导致的码字冗余字节的贡献。 可以通过奇偶校验（多重排除）或矩阵运算来计算对旧冗余字节的必要修改，并通过排除旧的冗余字节的修改来实现。 该修改过程仅需要涉及待修改的部分数据，并且可以使新的冗余字节快速可用，从而改善访问时间。