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    • 54. 发明授权
    • Disk-shaped recording medium using segment ID and disk unit using the
disk-shaped recording medium
    • 使用盘状记录媒体使用片段ID和盘片单元的盘形记录介质
    • US6058084A
    • 2000-05-02
    • US945333
    • 1998-01-08
    • Noriyuki YamamotoTakamichi Yamakoshi
    • Noriyuki YamamotoTakamichi Yamakoshi
    • G11B19/04G11B20/10G11B20/12G11B27/19G11B27/24G11B27/30G11B5/09G11B5/596
    • G11B27/3027G11B19/04G11B20/10G11B20/1251G11B27/19G11B27/24G11B2020/1234G11B2020/1265G11B2020/1267G11B2020/1287G11B2220/20G11B2220/2516
    • The present invention relates to a disk unit or the like capable of improving the reliability of a sector ID-less system and performing rapid frame synchronization. A disk 101 has a plurality of segments (frames) extending in the direction of rotation thereof, each of which has servo regions for recording servo information and data regions for recording user data. A segment ID 105 is recorded in an address region in each servo region in the segment proportions of four to one. The segment ID is a code having information about frame numbers (segment numbers) as viewed from the position of origin and recorded with CRC added thereto. Owing to the detection of the segment ID 105 on the disk 101, the disk unit can rapidly establish frame synchronization, e.g., restrain a reduction in transfer rate used when, for example, data is recorded on both surfaces and reproduced therefrom. Even upon writing, the disk unit can detect out-of-frame synchronization, using the segment ID 105 and shift to an urgent write inhibiting process. Further, erroneous writing developed in the sector ID-less system can be avoided promptly.
    • PCT No.PCT / JP97 / 00569 Sec。 371日期1998年1月8日 102(e)日期1998年1月8日PCT提交1997年2月27日PCT公布。 公开号WO97 / 32306 PCT 日期:1997年9月4日本发明涉及能够提高扇区无ID系统的可靠性并进行快速帧同步的盘单元等。 盘101具有沿其旋转方向延伸的多个段(帧),每个段具有用于记录伺服信息的伺服区域和用于记录用户数据的数据区域。 段ID 105被记录在每个伺服区域的地址区域中,以4比1的段比例。 片段ID是具有关于从原点位置观察的关于帧号(段号)的信息的代码并且被添加到其中的CRC记录的代码。 由于检测到盘101上的段ID105,因此盘单元可以快速建立帧同步,例如,当例如数据被记录在两个表面上并从其再现时,例如抑制所使用的传输速率的降低。 即使在写入时,盘单元也可以使用段ID 105检测帧外同步,并转移到紧急写入禁止进程。 此外,可以及时避免在扇区无ID系统中开发的错误写入。
    • 60. 发明授权
    • Information processing apparatus, information processing method, program for implementing information processing method, information processing system, and method for information processing system
    • 信息处理装置,信息处理方法,信息处理方法的实现程序,信息处理系统和信息处理系统的方法
    • US07487151B2
    • 2009-02-03
    • US10987158
    • 2004-11-15
    • Noriyuki Yamamoto
    • Noriyuki Yamamoto
    • G06F17/00G06F17/30G06F7/00G06K9/62
    • G06F17/30017Y10S707/99937
    • An information processing apparatus selects a proper content that well matches preference of a user and recommends it. A matrix calculator acquires M (one or more) feature vectors CCV whose elements are given by weight values assigned to a total of N (two or more) pieces of content meta information and context information. The matrix calculator produces a matrix CCM whose columns are given by the M feature vectors CCV and converts it into an approximate matrix CCM* by modifying the weight values of the respective elements of the M feature vectors CCV such that correlations of elements among the M feature vectors CCV are emphasized. Based on the approximate matrix CCM*, a user preference vector (UPV) generator produces a user preference vector UPV*. A matching unit calculates similarity between the user preference vector UPV* and a feature vector CCV produced from new content meta information or context information.
    • 信息处理装置选择与用户的喜好相匹配的正确内容并推荐它。 矩阵计算器获取M(一个或多个)特征向量CCV,其中元素由分配给总共N(两个或多个)内容元信息和上下文信息的权重值给出。 矩阵计算器产生矩阵CCM,其列由M个特征向量CCV给出,并通过修改M个特征向量CCV的各个元素的权重值将其转换为近似矩阵CCM *,使得M个特征中的元素的相关性 向量CCV被强调。 基于近似矩阵CCM *,用户偏好向量(UPV)生成器生成用户偏好向量UPV *。 匹配单元计算用户偏好向量UPV *与从新内容元信息或上下文信息产生的特征向量CCV之间的相似度。