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1. 发明授权

US09064533B2 Tape friction measurement 有权
标题翻译：胶带摩擦测量
公开(公告)号：US09064533B2
公开(公告)日：2015-06-23
申请号：US14284231
申请日：2014-05-21
申请人： International Business Machines Corporation
发明人： Reed A. Hancock , Randy C. Inch , Eiji Ogura
IPC分类号： G11B15/52 , G11B15/46 , G11B15/62 , G11B5/008 , G11B5/40 , G11B5/60 , G11B15/467
CPC分类号： G11B15/46 , G11B5/00813 , G11B5/0083 , G11B5/40 , G11B5/60 , G11B15/467 , G11B15/52 , G11B15/62
摘要： According to one embodiment, a method includes determining whether a primary velocity is valid and/or in a steady state; averaging a velocity error over a predetermined time period upon determining the primary velocity is valid and/or in a steady state; and calculating a new friction value based on the averaged velocity error.
摘要翻译：根据一个实施例，一种方法包括确定主速度是否有效和/或处于稳定状态; 在确定一次速度有效和/或处于稳定状态时，在预定时间段内平均速度误差; 并基于平均的速度误差计算新的摩擦值。

2. 发明授权

US08340501B2 Input-output circuit, recording apparatus and reproduction apparatus for digital video signal 有权
公开(公告)号：US08340501B2
公开(公告)日：2012-12-25
申请号：US12219250
申请日：2008-07-18
申请人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
发明人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
IPC分类号： H04N9/88
CPC分类号： H04N7/173 , G11B15/087 , G11B15/4731 , G11B15/52 , G11B20/1211 , G11B20/1813 , G11B27/005 , G11B27/032 , G11B27/3027 , G11B27/3036 , G11B27/3063 , G11B2220/90 , G11B2220/91 , H04B7/18523 , H04L12/64 , H04N5/775 , H04N7/106 , H04N7/1675 , H04N9/7921 , H04N9/8042 , H04N9/8233 , H04N9/877 , H04N21/4325 , H04N21/4334 , H04N2005/91321
摘要： A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a packet signal containing the clock reference and a digitally compressed video signal, a time stamp for a packet is generated using a clock signal in phase with the clock reference and added to the particular packet, and the packet signals with the time stamp added thereto are recorded closely to each other in a data storage element such as a magnetic recording medium. At playback, the packet interval is output by being restored to the original length on the basis of the time stamp added to the packet in store.

3. 发明授权

US07403350B2 Multiple servo sensor configuration for magnetic tape timing based servo 失效
标题翻译：多伺服传感器配置，用于基于磁带定时的伺服
公开(公告)号：US07403350B2
公开(公告)日：2008-07-22
申请号：US11535328
申请日：2006-09-26
申请人： Allen Keith Bates , Nhan Xuan Bui , Mark Allan Taylor
发明人： Allen Keith Bates , Nhan Xuan Bui , Mark Allan Taylor
IPC分类号： G11B5/02 , G11B5/09 , G11B21/02 , G11B5/584 , G11B5/55
CPC分类号： G11B5/584 , G11B15/52 , G11B15/60
摘要： Multiple servo sensors are laterally displaced over a distance less than the transverse width of timing based servo track laterally extending transitions. The servo sensors are configured to sense the transitions, and servo detection logic detects the relative timings of the laterally extending transitions sensed by the laterally displaced servo sensors as the magnetic tape is moved in the longitudinal direction. Logic is configured to determine from the relative timings of the sensed transitions for at least one known set of laterally extending transitions having differing slants, the lateral position of a servo sensor by employing the relative timing detected from one servo sensor and the relative timing detected from another servo sensor, or determine the longitudinal velocity of the magnetic tape by determining the difference between the relative timing detected from one servo sensor and the relative timing detected from another servo sensor.
摘要翻译：多个伺服传感器在比基于定时的伺服轨道横向延伸过渡的横向宽度小的距离上横向移位。伺服传感器被配置为感测转换，并且当磁带沿纵向移动时，伺服检测逻辑检测由侧向移位的伺服传感器感测到的横向延伸过渡的相对定时。逻辑被配置为根据对于具有不同倾斜度的至少一个已知的一组横向延伸的转换来确定感测到的转换的相对定时，伺服传感器的横向位置通过采用从一个伺服传感器检测到的相对定时和从或者通过确定从一个伺服传感器检测到的相对定时与从另一个伺服传感器检测到的相对定时之间的差来确定磁带的纵向速度。

4. 发明申请

US20080074779A1 MULTIPLE SERVO SENSOR CONFIGURATION FOR MAGNETIC TAPE TIMING BASED SERVO 失效
标题翻译：用于基于磁带时序的SERVO的多个伺服传感器配置
公开(公告)号：US20080074779A1
公开(公告)日：2008-03-27
申请号：US11535328
申请日：2006-09-26
申请人： Allen Keith Bates , Nhan Xuan Bui , Mark Allan Taylor
发明人： Allen Keith Bates , Nhan Xuan Bui , Mark Allan Taylor
IPC分类号： G11B5/584 , G11B5/55
CPC分类号： G11B5/584 , G11B15/52 , G11B15/60
摘要： Multiple servo sensors are laterally displaced over a distance less than the transverse width of timing based servo track laterally extending transitions. The servo sensors are configured to sense the transitions, and servo detection logic detects the relative timings of the laterally extending transitions sensed by the laterally displaced servo sensors as the magnetic tape is moved in the longitudinal direction. Logic is configured to determine from the relative timings of the sensed transitions for at least one known set of laterally extending transitions having differing slants, the lateral position of a servo sensor by employing the relative timing detected from one servo sensor and the relative timing detected from another servo sensor, or determine the longitudinal velocity of the magnetic tape by determining the difference between the relative timing detected from one servo sensor and the relative timing detected from another servo sensor.
摘要翻译：多个伺服传感器在比基于定时的伺服轨道横向延伸过渡的横向宽度小的距离上横向移位。伺服传感器被配置为感测转换，并且当磁带沿纵向移动时，伺服检测逻辑检测由侧向移位的伺服传感器感测到的横向延伸过渡的相对定时。逻辑被配置为根据对于具有不同倾斜度的至少一个已知的一组横向延伸的转换来确定感测到的转换的相对定时，伺服传感器的横向位置通过采用从一个伺服传感器检测到的相对定时和从或者通过确定从一个伺服传感器检测到的相对定时与从另一个伺服传感器检测到的相对定时之间的差来确定磁带的纵向速度。

5. 发明授权

US07319808B2 Input-output circuit, recording apparatus and reproduction apparatus for digital video signal 有权
公开(公告)号：US07319808B2
公开(公告)日：2008-01-15
申请号：US10367730
申请日：2003-02-19
申请人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
发明人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
IPC分类号： H04N7/26 , H04N5/91
CPC分类号： H04N7/173 , G11B15/087 , G11B15/4731 , G11B15/52 , G11B20/1211 , G11B20/1813 , G11B27/005 , G11B27/032 , G11B27/3027 , G11B27/3036 , G11B27/3063 , G11B2220/90 , G11B2220/91 , H04B7/18523 , H04L12/64 , H04N5/775 , H04N7/106 , H04N7/1675 , H04N9/7921 , H04N9/8042 , H04N9/8233 , H04N9/877 , H04N21/4325 , H04N21/4334 , H04N2005/91321
摘要： A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a packet signal containing the clock reference and a digitally compressed video signal, a time stamp for a packet is generated using a clock signal in phase with the clock reference and added to the particular packet, and the packet signals with the time stamp added thereto are recorded closely to each other in a data storage element such as a magnetic recording medium. At playback, the packet interval is output by being restored to the original length on the basis of the time stamp added to the packet in store.

6. 发明申请

US20070177471A1 RECORDING MEDIUM FOR STORING START POSITION INFORMATION FOR EACH ZONE AND METHOD OF MANAGING DATA USING THE INFORMATION 有权
标题翻译：用于存储每个区域的起始位置信息的记录介质和使用信息管理数据的方法
公开(公告)号：US20070177471A1
公开(公告)日：2007-08-02
申请号：US11695909
申请日：2007-04-03
申请人： Jung-wan Ko
发明人： Jung-wan Ko
IPC分类号： G11B20/10 , G11B15/52
CPC分类号： G11B15/52 , G11B20/1217 , G11B20/1258 , G11B20/1883 , G11B2020/1232 , G11B2020/1244 , G11B2020/1245 , G11B2020/1277 , G11B2020/1893 , G11B2220/20 , G11B2220/2537 , G11B2220/2562 , G11B2220/2575
摘要： A recording medium for storing start position information for each zone and a method of managing data using the information. In a disc having a plurality of zones which form a group, and a spare area which is allocated at the start portion or the end portion of the group for replacing defects, when start logical sector numbers of each zone are changed by slipping replacement during initialization or reinitialization, the information is stored in the defect management area to thereby increase the compatibility of the medium. In particular, by the method of managing data using information stored in a defect management area, generation of errors is prevented in reading or writing due to the change of a physical position of a real-recorded file which are caused by wrong calculation of the start logical sector numbers for each zone.
摘要翻译：一种用于存储每个区域的开始位置信息的记录介质和使用该信息管理数据的方法。在具有形成组的多个区域的盘和在组的起始部分或末端部分分配用于替换缺陷的备用区域，当在初始化期间通过滑动替换来改变每个区域的开始逻辑扇区号或重新初始化，信息被存储在缺陷管理区域中，从而增加介质的兼容性。特别地，通过使用存储在缺陷管理区域中的信息来管理数据的方法，由于错误的开始计算引起的实际记录文件的物理位置的改变，在读取或写入时防止错误的产生每个区域的逻辑扇区号。

7. 发明授权

US07058283B2 Magnetic tape tracking control apparatus and method, magnetic tape format, recording medium and program 失效
公开(公告)号：US07058283B2
公开(公告)日：2006-06-06
申请号：US09864336
申请日：2001-05-25
申请人： Toshitaka Yoshihiro , Fumiyoshi Abe
发明人： Toshitaka Yoshihiro , Fumiyoshi Abe
IPC分类号： H04N5/93
CPC分类号： H04N5/783 , G11B15/1875 , G11B15/4676 , G11B15/52 , G11B27/005 , G11B27/107 , G11B27/3063 , G11B2220/90 , H04N5/78263 , H04N9/8042 , H04N9/8227
摘要： Magnetic tape tracking control apparatus and method, magnetic tape format, recording medium and program for controlling tracking of tracks on a magnetic tape by a rotary head are disclosed. The magnetic tape tracking control apparatus comprises a first generating element for encoding an inputted video signal to generate the video data, a second generating element for generating search video data on the basis of the video data generated by the first generating element and a recording element for recording, on the tracks, the video data generated by the first generating element, the search video data generated by second generating element and positional information associated with a recording position of the search video data.

8. 发明申请

US20050185925A1 Digital VTR 审中-公开
标题翻译：数字录像机
公开(公告)号：US20050185925A1
公开(公告)日：2005-08-25
申请号：US11115129
申请日：2005-04-27
申请人： Masako Asamura , Satoshi Kurahashi , Tomohiro Ueda , Taketoshi Hibi , Tatsuo Yamasaki , Junko Ishimoto , Tohru Inoue , Ken Onishi
发明人： Masako Asamura , Satoshi Kurahashi , Tomohiro Ueda , Taketoshi Hibi , Tatsuo Yamasaki , Junko Ishimoto , Tohru Inoue , Ken Onishi
IPC分类号： G11B15/087 , G11B15/18 , G11B15/467 , G11B15/52 , G11B27/00 , G11B27/30 , H04N5/7826 , H04N5/783 , H04N9/804 , H04N9/82 , H04N9/877 , H04N9/888
CPC分类号： G11B15/087 , G11B15/18 , G11B15/1875 , G11B15/4673 , G11B15/52 , G11B27/005 , G11B27/3027 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N9/8042 , H04N9/8227 , H04N9/877 , H04N9/888
摘要： In a digital VTR having a certain recording bit rate, within a range not higher than a remaining data rate after recording the bit stream, first HP data D1 is recorded in first specific regions, and second HP data D2 is recorded in second specific regions in specific tracks. In middle-speed and high-speed fast replay, the magnetic tape is transported continuously at a middle-speed or high-speed higher than the standard speed for normal replay, and the first HP data D1 is used in common, and at a low-speed fast replay of about twice the normal speed, the speed of the magnetic tape is alternated between a speed near the standard speed for normal replay, and a speed near the low-speed fast, and at the speed near the standard speed, the second HP data disposed in the second specific regions in the specific tracks and the first HP data disposed in the first specific regions in the specific tracks are both replayed.
摘要翻译：在具有一定记录比特率的数字VTR中，在记录比特流之后的不大于剩余数据速率的范围内，将第一HP数据D 1记录在第一特定区域中，并且将第二HP数据D 2记录在第二特定区域特定轨道的区域。在中速和高速快速重播中，磁带以高于正常重放的标准速度的中速或高速连续传送，并且第一HP数据D 1被共同使用，并且在低速正常速度的两倍快速重放，磁带的速度在正常重放标准速度附近的速度和低速快速附近的速度之间交替，并且在接近标准速度的速度下，布置在特定轨道中的第二特定区域中的第二HP数据和布置在特定轨道中的第一特定区域中的第一HP数据都被重放。

9. 发明申请

US20040202452A1 Digital VTR 有权
公开(公告)号：US20040202452A1
公开(公告)日：2004-10-14
申请号：US10839277
申请日：2004-05-06
申请人： Mitsubishi Denki Kabushiki Kaisha
发明人： Masako Asamura , Satoshi Kurahashi , Tomohiro Ueda , Taketoshi Hibi , Tatsuo Yamasaki , Junko Ishimoto , Tohru Inoue , Ken Onishi
IPC分类号： H04N005/783
CPC分类号： G11B15/087 , G11B15/18 , G11B15/1875 , G11B15/4673 , G11B15/52 , G11B27/005 , G11B27/3027 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N9/8042 , H04N9/8227 , H04N9/877 , H04N9/888
摘要： In a digital VTR having a certain recording bit rate, within a range not higher than a remaining data rate after recording the bit stream, first HP data D1 is recorded in first specific regions, and second HP data D2 is recorded in second specific regions in specific tracks. In middle-speed and high-speed fast replay, the magnetic tape is transported continuously at a middle-speed or high-speed higher than the standard speed for normal replay, and the first HP data D1 is used in common, and at a low-speed fast replay of about twice the normal speed, the speed of the magnetic tape is alternated between a speed near the standard speed for normal replay, and a speed near the low-speed fast, and at the speed near the standard speed, the second HP data disposed in the second specific regions in the specific tracks and the first HP data disposed in the first specific regions in the specific tracks are both replayed.

10. 发明申请

US20040141250A1 Servo pattern based tape tension control for tape drives 失效
标题翻译：用于磁带驱动器的基于伺服模式的磁带张力控制
公开(公告)号：US20040141250A1
公开(公告)日：2004-07-22
申请号：US10349307
申请日：2003-01-22
申请人： International Business Machines Corporation
发明人： David H. Harper , Mark A. Taylor
IPC分类号： G11B015/18 , G11B005/584
CPC分类号： G11B5/584 , G11B15/43 , G11B15/52
摘要： A system and method of controlling tape tension during operation of a tape drive by making use of pre-existing timing based servo patterns formatted on the media. Changes in servo pattern timing are read at regular intervals and used to calculate changes in tension, with the torque of the tape reel motors being adjusted accordingly.
摘要翻译：通过利用在介质上格式化的预先存在的基于时序的伺服模式，在磁带驱动器的操作期间控制磁带张力的系统和方法。以规律的间隔读取伺服模式定时的变化，并用于计算张力的变化，同时相应调整磁带机电机的转矩。

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