公开(公告)号：USRE42679E1

公开(公告)日：2011-09-06

申请号：US12411333

申请日：2009-03-25

申请人： Je Hyung Lee ,  Soo Kyung Kim ,  Sang Joon Woo ,  Tae Seok Yang

发明人： Je Hyung Lee ,  Soo Kyung Kim ,  Sang Joon Woo ,  Tae Seok Yang

IPC分类号： H04N5/91 ,  H04N7/26

CPC分类号： H04N5/783 ,  G11B5/0086 ,  G11B5/09 ,  G11B5/5927 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4673 ,  G11B15/48 ,  G11B15/52 ,  G11B27/005 ,  G11B27/107 ,  G11B27/3027 ,  G11B27/32 ,  G11B27/324 ,  G11B2220/90 ,  G11B2220/91 ,  H04N5/782 ,  H04N5/78206 ,  H04N5/78266 ,  H04N5/9262 ,  H04N9/7973 ,  H04N9/8042 ,  H04N9/8205 ,  H04N19/61

摘要： An apparatus and method for controlling recording and reproduction in a video cassette tape recorder are disclosed apparatus is capable of, in a recording mode, separating specific data for speed-varied reproduction from compressed digital video signals, recording them on designated tracks, recording position information of the designated tracks on a control track by an index head or recording position information of recording position-synchronized blocks at the starting portions of the designated tracks recorded with the specific data, and in a speed-varied reproduction mode, controlling a capstan servo speed so as to maintain the travel of a magnetic tape at a normal speed and periodically or non-periodically accelerate or decelerate it where specific data for varied-speed have been recorded periodically or non-periodically on predetermined portions of tracks, thereby making heads travel repeatedly at the normal speed and the high speed and thereby detect continuously the specific tracks for varied-speed. A repeatability of reproduced video at a varied speed is obtained without any deterioration in picture quality, because of recording of the specific data for speed-varied reproduction and the continuous detection of the specific data in the speed-varied reproduction. Apparatus and method for controlling recording and/or reproduction of digital signals to and/or from a digital storage medium, are discussed. According to an embodiment, the method includes receiving digital data, the digital data including video data compressed as at least one of intra-frame and predictive frame, stuffing data, synchronous signals, and relative position information associated with an I-frame; detecting the synchronous signals for decoding the video data; obtaining the video data from the digital data by removing the stuffing data based on stuffing code information; determining a position associated with the I-frame by using the relative position information; determining whether a speed-varied reproduction mode is selected for reproduction of the video data in a varied speed; and reproducing the video data based on the determined position associated with the I-frame, the synchronous signals, and a result of the step of determining whether the speed-varied reproduction mode is selected.

公开(公告)号：USRE41611E1

公开(公告)日：2010-08-31

申请号：US11798311

申请日：2007-05-11

申请人： Je Hyung Lee ,  Soo Kyung Kim ,  Sang Joon Woo ,  Tae Seok Yang

发明人： Je Hyung Lee ,  Soo Kyung Kim ,  Sang Joon Woo ,  Tae Seok Yang

IPC分类号： H04N5/91 ,  H04N7/26

CPC分类号： H04N5/783 ,  G11B5/0086 ,  G11B5/09 ,  G11B5/5927 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4673 ,  G11B15/48 ,  G11B15/52 ,  G11B27/005 ,  G11B27/107 ,  G11B27/3027 ,  G11B27/32 ,  G11B27/324 ,  G11B2220/90 ,  G11B2220/91 ,  H04N5/782 ,  H04N5/78206 ,  H04N5/78266 ,  H04N5/9262 ,  H04N9/7973 ,  H04N9/8042 ,  H04N9/8205 ,  H04N19/61

摘要： An apparatus and method for controlling recording and reproduction in a video cassette tape recorder are disclosed apparatus is capable of, in a recording mode, separating specific data for speed-varied reproduction from compressed digital video signals, recording them on designated tracks, recording position information of the designated tracks on a control track by an index head or recording position information of recording position-synchronized blocks at the starting portions of the designated tracks recorded with the specific data, and in a speed-varied reproduction mode, controlling a capstan servo speed so as to maintain the travel of a magnetic tape at a normal and periodically or non-periodically accelerate or decelerate it where specific data for varied-speed have been recorded periodically or non-periodically on predetermined portions of tracks, thereby making heads of travel repeatedly at the normal speed and the high speed and thereby detect continuously the specific tracks for varied-speed. A repeatibility of reproduced video at a varied speed is obtained without any deterioration in picture quality, because of recording of the specific data for speed-varied reproduction and the continuous detection of the specific data in the speed-varied reproduction. Apparatus and method for controlling recording and/or reproduction of digital signals to and/or from a digital storage medium are discussed. According to an embodiment, there is provided a method for processing a digital signal stored on a digital storage medium, comprising receiving digital data processed to prevent at least one of buffer underflow and buffer overflow and stuffed by stuffing data capable of being detected and removed, the digital data including video data in a first data format converted from video data in a second data format; determining whether a speed-varied reproduction mode is selected for reproduction of the video data in the first data format in a varied speed, the video data in the first data format compressed as at least one of I-frame and P-frame; and reproducing the video data in the first data format in a varied speed based on speed information when the speed-varied reproduction mode is selected, the speed-varied reproduction mode being associated with the speed information, wherein the video data in the first data format is reproduced in the varied speed by processing the video data in the second data format.

公开(公告)号：US20060163409A1

公开(公告)日：2006-07-27

申请号：US11141041

申请日：2005-06-01

申请人： Jun-young Kim ,  Byeng-bae Park ,  Jae-hoon Sim ,  Seung-woo Lee ,  Hyeong-seok Choi ,  Jeong-hyeob Oh

发明人： Jun-young Kim ,  Byeng-bae Park ,  Jae-hoon Sim ,  Seung-woo Lee ,  Hyeong-seok Choi ,  Jeong-hyeob Oh

IPC分类号： G11B15/32

CPC分类号： G11B15/22 ,  G11B15/43 ,  G11B15/48

摘要： Disclosed are a reel brake device and a magnetic recording and reproducing apparatus having the same. The reel brake device comprises a tension band mounted on an outer circumference of a reel disc to control tension, the reel disc which is rotatably mounted on the main chassis to drive a tape reel of a tape cassette, and a brake unit fixed on the main chassis to help the tension band be in contact with the outer circumference of the reel disc. This can replace a conventional brake unit having a complicated structure, and therefore, the number of component parts can be reduced.

摘要翻译： 公开了一种卷轴制动装置和具有该卷轴制动装置的磁记录和再现装置。 卷轴制动装置包括安装在卷轴盘的外周上以控制张力的张力带，可旋转地安装在主机架上以驱动磁带盒的磁带卷盘的卷盘盘和固定在主机架上的制动单元 底盘以帮助张力带与卷轴盘的外圆周接触。 这可以代替具有复杂结构的常规制动单元，因此可以减少部件数量。

公开(公告)号：US07057840B2

公开(公告)日：2006-06-06

申请号：US10446864

申请日：2003-05-29

申请人： Naohisa Tanabe ,  Masashi Tsuda

发明人： Naohisa Tanabe ,  Masashi Tsuda

IPC分类号： G11B15/48

CPC分类号： G11B15/6656 ,  G11B15/48

摘要： With a magnetic record and playback device that permits rapid switching from fast forward (FF) mode or rewind (REW) mode to playback (FWD) mode, when it is necessary to switch rapidly from fast forward (FF) mode or rewind (REW) mode to playback (FWD) mode, the device is operated in a first take-up mode in which magnetic tape is wound on the rotating head drum, and when it is not necessary to switch rapidly from fast forward (FF) mode or rewind (REW) mode to playback (FWD) mode but is required to increase magnetic tape transport speed, the device is operated in a second take-up mode in which the magnetic tape is not wound on the rotating head drum, whereby it is possible to shorten the fast forward/rewind time by raising the transport speed of the magnetic tape without increasing the load on the magnetic tape or the magnetic head.

公开(公告)号：USRE38868E1

公开(公告)日：2005-11-08

申请号：US09118824

申请日：1998-07-20

申请人： Je Hyung Lee ,  Soo Kyung Kim ,  Sang Joon Woo ,  Tae Seok Yang

发明人： Je Hyung Lee ,  Soo Kyung Kim ,  Sang Joon Woo ,  Tae Seok Yang

IPC分类号： G11B20/10 ,  G11B5/008 ,  G11B5/02 ,  G11B5/09 ,  G11B15/12 ,  G11B15/18 ,  G11B15/467 ,  G11B15/48 ,  G11B15/52 ,  G11B20/12 ,  G11B27/00 ,  G11B27/10 ,  G11B27/30 ,  G11B27/32 ,  H04N5/76 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/91 ,  H04N5/92 ,  H04N5/926 ,  H04N5/93 ,  H04N9/79 ,  H04N9/797 ,  H04N9/804 ,  H04N9/82

CPC分类号： H04N5/783 ,  G11B5/0086 ,  G11B5/09 ,  G11B5/5927 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4673 ,  G11B15/48 ,  G11B15/52 ,  G11B27/005 ,  G11B27/107 ,  G11B27/3027 ,  G11B27/32 ,  G11B27/324 ,  G11B2220/90 ,  G11B2220/91 ,  H04N5/782 ,  H04N5/78206 ,  H04N5/78266 ,  H04N5/9262 ,  H04N9/7973 ,  H04N9/8042 ,  H04N9/8205 ,  H04N19/61

摘要： An apparatus and method for controlling recording and reproduction in a video cassette tape recorder are disclosed. The apparatus is capable of, in a recording mode, separating specific data for speed-varied reproduction from compressed digital video signals, recording them on designated tracks, recording position information of the designated tracks on a control track by an index head or recording position information of recording position-synchronized blocks at the starting portions of the designated tracks recorded with the specific data, and in a speed-varied reproduction mode, controlling a capstan servo speed so as to maintain the travel of a magnetic tape at a normal speed and periodically or non-periodically accelerate or decelerate it where specific data for varied-speed have been recorded periodically or non-periodically on predetermined portions of tracks, thereby making heads travel repeatedly at the normal speed and the high speed and thereby detect continuously the specific tracks for varied-speed. A repeatability of reproduced video at a varied speed is obtained without any deterioration in picture quality, because of recording of the specific data for speed-varied reproduction and the continuous detection of the specific data in the speed-varied reproduction.

摘要翻译： 公开了一种用于控制盒式磁带录像机中的记录和再现的装置和方法。＆lt;？insert-start id =“INS-S-00001”date =“20051108”？>。 <？insert-end id =“INS-S-00001”？>装置能够在记录模式下将压缩数字视频信号中的速度变化再现的特定数据分离，将其记录在指定轨道上，记录位置信息 在通过特定数据记录的指定轨道的起始部分处的索引头或记录位置同步块的记录位置信息在控制轨道上，并且在速度变化再现模式中，控制主导轴伺服速度 以便以正常速度保持磁带的行进，并且在轨道的预定部分上周期性地或非周期性地记录用于变速的特定数据的周期性或非周期性加速或减速，从而使头部重复行进 以正常速度和高速度，从而连续检测特定轨道的变速。 由于记录速度变化再现的特定数据和在速度变化再现中连续检测特定数据，所以可以获得不同速度的再现视频的重复性，而不会降低图像质量。

公开(公告)号：US06771883B2

公开(公告)日：2004-08-03

申请号：US09760755

申请日：2001-01-17

申请人： Masahiro Abe

发明人： Masahiro Abe

IPC分类号： H04N591

CPC分类号： H04N5/782 ,  G11B15/026 ,  G11B15/093 ,  G11B15/103 ,  G11B15/46 ,  G11B15/4673 ,  G11B15/48 ,  G11B15/6656

摘要： The travelling speed of a magnetic tape is controlled without considering a detection error caused by the slackening of a magnetic tape or the like. A microcomputer 10, immediately after starting a fast-feeding operation, starts a running rotation of feeding and winding reels 44, 45 (step S205), calculates an N value based on reel pulses and sets an acceleration target (step S210, S215) and simultaneously reads the N value immediately before the previous stop of the rotation from RAM and compares the read N value with the current N value (step S225, S230), prohibits the acceleration of the feeding and winding reels 44, 45 after confirming that the error does not fall within 25% (step S235) whereby when the videotape is rotated to the leader or the trailer, the videotape is prevented from being applied with an excessive load so that damages on the videotape can be reduced.

摘要翻译： 控制磁带的移动速度而不考虑由磁带等的松弛引起的检测误差。 在开始快速进给操作之后的微型计算机10开始进给和卷绕卷轴44,45的运行旋转（步骤S205），基于卷轴脉冲计算N值并设定加速度目标（步骤S210，S215）和 同时从RAM的前一停止转动之前读取N值，并将读取的N值与当前的N值进行比较（步骤S225，S230），在确认错误之后，禁止馈送和绕组盘44,45的加速。 不在25％以内（步骤S235），当录像带旋转到前导件或拖车时，防止录像带被施加过大的负载，从而可以降低录像带上的损坏。

公开(公告)号：US20040061966A1

公开(公告)日：2004-04-01

申请号：US10629451

申请日：2003-07-29

发明人： Ruediger Friedrich Berger ,  Andreas Dietzel ,  Thomas Frank ,  Volker Heinrich

IPC分类号： G11B015/46 ,  G11B015/48 ,  G11B019/02

CPC分类号： G11B15/48 ,  G11B5/00 ,  G11B15/22 ,  G11B19/22

摘要： An apparatus for exactly positioning a medium mounted on a spindle is provided, whereby the apparatus comprises a device for continuously changing the angular position of said medium with respect to a predefined reference position by rotating said spindle. Additionally, the apparatus comprises a friction element for braking said spindle at a predetermined position, not allowing a swing back.

摘要翻译： 提供一种用于精确地定位安装在心轴上的介质的装置，由此该装置包括用于通过旋转所述心轴来连续地改变所述介质相对于预定参考位置的角位置的装置。 此外，该装置包括用于在预定位置制动所述心轴的摩擦元件，不允许回摆。

公开(公告)号：US20030127551A1

公开(公告)日：2003-07-10

申请号：US09441003

申请日：1999-11-16

发明人： JOHN ABEDOR ,  KURT HALLAMASEK

IPC分类号： G11B015/46 ,  B65H059/38

CPC分类号： G11B15/48 ,  G11B15/46

摘要： A system for measuring a length of tape available for a record operation has both a tape supply reel which rotates as a tape leaves the supply reel during a tape transfer process, and a tape take-up reel which receives tape from the supply reel, and the tape take-up reel also rotates as it receives the tape during the tape transfer process. There are provided an encoder responsive to movement of the tape, a first angular position transducer to measure an angular position of the tape supply reel, a second angular position transducer to measure an angular position of the tape take-up reel, and a third transducer responsive to the encoder. A Kalman filter, responsive to an angular position measurement by the first angular position transducer, the second angular position transducer, and also the third angular position transducer, calculates the length of tape available for a record operation. The Kalman filter also calculates the radius of the tape pack on the supply reel, and the radius of the tape pack on the take-up reel.

摘要翻译： 用于测量可用于记录操作的带的长度的系统具有在带传送过程中带作为带离开供带盘时旋转的带供应卷轴和从供带盘接收带的带卷轴， 磁带收带卷轴在磁带传送过程中接收磁带时也会旋转。 提供了响应于带的移动的编码器，用于测量带供应卷轴的角位置的第一角度位置传感器，用于测量带卷轴的角位置的第二角位置传感器，以及第三传感器 响应编码器。 卡尔曼滤波器响应于第一角度位置传感器，第二角度位置传感器以及第三角度位置传感器的角度位置测量，计算可用于记录操作的带的长度。 卡尔曼滤波器还可以计算供带盘上的磁带包的半径，以及卷带盘上磁带的半径。

公开(公告)号：US20020021888A1

公开(公告)日：2002-02-21

申请号：US09833663

申请日：2001-04-13

发明人： Takehiko Deguchi ,  Fumio Kinoshita

IPC分类号： H04N005/781

CPC分类号： G11B15/54 ,  G11B15/48

摘要： A tape transport apparatus enabling a tape winding to be completed even if a winding load is applied to interrupt the tape running during a fast-forward running mode or rewinding running mode. An output voltage applied to a drive motor driving a supply reel or a take-up reel is set at a high voltage during a fast-forward running mode or rewinding running mode and a load flag is turned ON. When a rotation number of the drive motor is reduced under a predetermined rotation number due to the occurrence of the winding load during the load flag being ON, the output voltage applied to the drive motor is sifted from a high voltage to a low voltage and the drive motor is continuously driven to rewind the tape.

摘要翻译： 即使施加绕组负载来中断在快进运行模式或倒带运行模式下运行的磁带，磁带卷绕也能够完成。 在快进运行模式或倒带运行模式下，施加到驱动供给卷轴或卷取卷轴的驱动马达的输出电压被设定为高电压，并且加载标志被接通。 当在负载标志为ON期间由于卷绕负载的发生而使驱动电动机的转数减少到预定的转数时，施加到驱动电动机的输出电压从高电压被切断为低电压， 驱动电机被连续驱动以倒带。

公开(公告)号：US06305628B1

公开(公告)日：2001-10-23

申请号：US09440552

申请日：1999-11-15

申请人： Mark R. Thompson ,  Kempton W. Redhead

发明人： Mark R. Thompson ,  Kempton W. Redhead

IPC分类号： G11B1546

CPC分类号： G11B15/54 ,  G11B15/48

摘要： A reel-to-reel tape system stops movement of the tape during a power loss situation without overrun by one of the tape reels and without causing undue stress upon the tape itself. If rotational momentum of the supply reel is sensed to be disproportionately larger than the momentum of the take-up reel, supply motor back emf for dynamically braking the supply reel is applied while also driving the take-up reel in the direction of rotation in which it operated when the power source was discontinued. An appropriate amount of tension is maintained on the tape until the tape motion has come to a complete stop. A capacitor large enough to supply the power needed to provide current to the power bridge of the motor drivers is provided. The capacitor is charged upon power up of the drive and is not tapped unless and until the normal supply voltage of the motor drivers is turned off. The take-up reel motor is provided with optimum current to take up the loose tape that otherwise would be produced in the tape path and around the reels, thus preventing a hazardous situation.

摘要翻译： 卷绕到磁带系统在功率损耗状态期间停止磁带的移动，而不会由磁带卷筒之一超载，并且不会对磁带本身造成不适当的应力。 如果供应卷轴的旋转动量被感测到与卷取卷轴的动量不成比例地大，则施加用于动态制动供带盘的供给马达背面电动势，同时也沿着旋转方向驱动卷取卷轴，其中 当电源停止运行时。 在胶带上保持适量的张力，直到胶带运动完全停止。 提供足够大的电容器来提供向电动机驱动器的电力桥提供电流所需的电力。 电容器在驱动器上电时被充电，除非电机驱动器的正常供电电压关闭，否则不会点亮。 卷取卷盘马达具有最佳的电流以吸收否则会在磁带路径和卷轴周围产生的松散磁带，从而防止危险情况。