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| Number | Title | Issue Date |
| 8035912 | System and method for controlling traveling of tape A system and method for controlling the traveling of a tape is provided. The system and method include passing data in a buffer to a channel input/output unit for writing the data to a tape. A determining unit determines if second data is to be written to the tape w... | 10/11/2011 |
| 7254672 | Translation device driver for translating between disk device driver and tape device driver commands A translation device driver apparatus and method are disclosed. A first type of request is received from a disk-based file system to access a first type of storage device. The first type of storage device permits direct access reads and writes and implements update-... | 08/07/2007 |
| 7190544 | System and method for tape drive under run control A control system and method for operating a system comprising a host computer, a buffer, a tape drive and a tape is provided. The method includes writing data to the tape while the tape is traveling at a first speed; stopping the tape; determining a minimum distance... | 03/13/2007 |
| 7177108 | Emulation of auxiliary memory A system and method of operating a storage system is provided. The storage system includes a tape drive for reading and writing data to a magnetic tape medium of a tape storage media device, and an auxiliary memory emulator for receiving I/O commands to perform I/O ... | 02/13/2007 |
| 7177106 | Disk storage apparatus A disk storage apparatus including a position detection section for producing position error information corresponding to the current position of a head from servo information which has been previously recorded on a disk and is detected by the head, a position contr... | 02/13/2007 |
| 7167326 | Tape drive that supports update-in-place A method in a data processing system is disclosed for permitting update-in-place in a tape drive. Data in a particular record in a tape that is mounted on the tape drive is modified. The particular record is located in a particular one of multiple different tracks i... | 01/23/2007 |
| 7158338 | Servo track having periodic frames of tone field and embedded synchronization marks Methods and systems for sensing a position of a transducer head with respect to a storage medium. One method includes generating a read signal from a servo track stored on a magnetic storage medium. The servo track includes servo frames of magnetic flux transitions ... | 01/02/2007 |
| 7154695 | System and method for controlling the speed of a tape drive A control system and method for operating a system comprising a host computer, a buffer, a tape drive and a tape is provided. The method includes writing data to the tape while the tape is traveling at a first speed; stopping the tape; determining an optimum second ... | 12/26/2006 |
| 7127576 | Method and system for data duplication According to one embodiment of the invention, a system for duplicating data is provided. The system includes a first recorder having an operating clock speed. An output port of the first recorder is permanently electrically coupled to an input port of a second recor... | 10/24/2006 |
| 7092192 | Videotape recording and playback device, and videotape player The object of the present invention is to reduce the load and specification requirements on the network and the video server. The buffer usage rate is counted and supplied to the tape driving controller 7. In the reproduction mode, the tape driving controller... | 08/15/2006 |
| 7046909 | System and method for identifying inconsistencies in duplicate digital videos A system for checking the consistency between a digital video master and a duplicate video. Both the digital video master and the duplicate digital video have digital data, the digital data composed of a plurality of data segments. A loader module receives the digit... | 05/16/2006 |
| 7039297 | Recording/reproducing method suitable for recording/reproducing AV data on/from disc, recorder and reproducer for the method, information recording disc and information processing system The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of: determining whether or not input data is AV data; detecting a defectiv... | 05/02/2006 |
| 7027250 | Magnetic tape head with thinfilm thermosensors for head-media interface temperature monitoring A thinfilm magnetic head for tape drives that enables onsite, real time temperature monitoring of the head-media interface. The head includes a media interface contacting a data bearing surface of the tape. A thinfilm, read-write element and a thinfilm sensor of a t... | 04/11/2006 |
| 7023651 | Reduction of tape velocity change backhitch time through use of an intermediate back velocity Modern tape drives can adjust their tape drive velocity between two or more read/write data rates to better match the data rate demands of the host. This velocity changing may provide improvements in drive performance and total backhitch counts. The transition from ... | 04/04/2006 |
| 6958878 | Forced backhitch for speed matching in a multi-speed tape drive In a magnetic tape drive having a plurality of stepped operational speeds, data storage logic estimates, from the effective data fill rate for a data buffer and the drive data write rate, the time cost to continue to operate the magnetic tape drive at the current st... | 10/25/2005 |
| 6956709 | Write velocity identification in a PRML system A tape drive and method of identifying write velocity during reading are provided. When a track is being read, a lead-in code of the data signal is processed prior to determining the data stream. The lead-in code identifies the velocity with which the track data wer... | 10/18/2005 |
| 6937416 | Process for controlling the capstan in a video tape recorder (VTR) In a video tape recorder (VTR), the capstan draws the tape from which the video signal is reproduced in a forward direction. The following steps are used to control the capstan, applying a torque to the capstan in a backward direction for a first predetermined perio... | 08/30/2005 |
| 6934108 | Servo pattern based tape tension control for tape drives 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,... | 08/23/2005 |
| 6909838 | Recording/reproducing method suitable for recording/reproducing AV data on/from disc, recorder and reproducer for the method, information recording disc and information processing system The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of: determining whether or not input data is AV data; detecting a defectiv... | 06/21/2005 |
| 6906882 | Recording and reproducing apparatus and method A signal is recorded on and reproduced from a first tape-like storage medium. At least one indexing signal is recorded on the first storage medium. Or, at least one indexing signal already recorded on the first storage medium is detected. The location of the indexin... | 06/14/2005 |
| 6864879 | Rotational operation mechanism and music playback apparatus using the mechanism A rotational operation mechanism for a DJ apparatus enables smooth rotation to be achieved using a simple configuration. A rotational operation mechanism has a base, a display window member fixed onto the base, a ring member positioned on the display window member a... | 03/08/2005 |
| 6728058 | Cassette tape recorder In a cassette tape recorder for recording signals on a magnetic tape wound on a pair of reels of a tape cassette or reproducing signals from the tape, a control circuit for controlling a tape transport mechanism detects the amount of the tape remaining unwound and e... | 04/27/2004 |
| 6697209 | Phase based time domain tracking for helical scan tape drive In a helical scan recording system, magnetic tape (31) is transported by a tape transport (98) proximate a rotating scanner (85). The scanner has a pair of read heads (82) mounted thereon, e.g., a first read head and a second read head, which travel in a ... | 02/24/2004 |
| 6658197 | Audio signal reproduction apparatus and method The audio signal reproduction apparatus and method according to the present invention reproduces a digital audio signal recorded on a recording medium by a predetermined number of samples, at a recording medium travel speed different from the travel speed... | 12/02/2003 |
| 6624961 | Tape drive apparatus and recording medium Formation of a partition is quickly performed. Management information areas such as a device area D1, system areas S1 and S2, an optional device area OD1, and the like are produced by writing necessary data, and with respect to a data area, a running amou... | 09/23/2003 |
| 6459540 | Variable speed recording method and apparatus for a magnetic tape drive A method and apparatus for varying track recording speed to maximize host-to-tape data transfer rates is presented. Variable data transfer rates of host systems and networks are accommodated by continually adjusting the tape speed to match the tape drive ... | 10/01/2002 |
| 6317283 | Methods and apparatus for calibration of a rotating scanner to a track recorded on a tape An apparatus for calibrating a tape drive that includes a rotating scanner for reading the tracks on the tape and a tape drive servo for transporting the tape in response to a control signal. The apparatus includes a signal generator and a controller. The... | 11/13/2001 |
| 6307701 | Variable speed recording method and apparatus for a magnetic tape drive A method and apparatus for varying track recording speed to maximize host-to-tape data transfer rates is presented. Variable data transfer rates of host systems and networks are accommodated by continually adjusting the tape speed to match the tape drive ... | 10/23/2001 |
| 6282048 | Tracking control method and apparatus for controlling capstan motor speed In tracking control method and apparatus thereof for an image recorder/reproducer, there are provided a method and device which can accomplish a high-performance tracking control by using the variable capstan speed instruction which is reflected by the de... | 08/28/2001 |
| 6275348 | Magnetic tape apparatus and method A magnetic tape recording/playback apparatus, and a method of operating the apparatus, which minimises or eliminates the tape damage which is caused by the tape-driving capstan spinning and skidding across the tape at start-up. Initial acceleration of the... | 08/14/2001 |
| 6266204 | Tracking controller for a tape-like recording medium A tracking control apparatus for a tape-shaped recording medium according to this invention is operative, prior to carrying out actual reproduction, to measure times from the time point serving as reference phase position within one period of the rotary d... | 07/24/2001 |
| 6185062 | Tracking controller for a tape-like recording medium A tracking control apparatus for a tape-shaped recording medium is operative, prior to carrying out actual reproduction, to measure times from the time point serving as the reference phase position within one period of the rotary drum to the time points w... | 02/06/2001 |
| 6178286 | Adaptive tape drive control in a video recorder A video recorder capstan drive motor is controlled for slow-motion, freeze-frame and similar operations by setting a rate of acceleration or braking. A speed parameter is measured during an initial acceleration phase and is compared to a predetermined des... | 01/23/2001 |
| 6172835 | Tracking controller for a tape-like recording medium A tracking control apparatus for a tape-shaped recording medium is operative, prior to carrying out actual reproduction, to measure times from the time point serving as the reference phase position within one period of the rotary drum to the time points w... | 01/09/2001 |
| 6172834 | System and method for adjusting the speed of tape A cartridge tape drive for use with a tape cartridge includes a temperature sensor for determining the temperature of the tape cartridge and a control device responsive to the temperature sensor for automatically adjusting the speed of the tape when a tem... | 01/09/2001 |
| 6154336 | Frame synchronizing circuit in a magnetic recording and reproducing apparatus and a frame synchronizing method thereof A reproducing signal read out by a reproducing head is transmitted to a demodulator including a track number detecting circuit through a reproducing amplifier. A microcomputer performs tracking control by controlling the rotation of a capstan based on the... | 11/28/2000 |
| 6137951 | Image processing apparatus having plural modes dependent upon signal quality An image reproducing apparatus evaluating image signal quality includes a reproducing unit for reproducing an image signal, an evaluation unit for evaluating a quality value of the reproduced image signal, and a control unit for controlling the reproducin... | 10/24/2000 |
| 6134073 | Methods and apparatus for controlling motion of recording media During retrieval of data from tape in a helical scan tape drive mechanism with a rotary head drum, movement of tape past the drum by a capstan is controlled to keep the tracks recorded on the tape in alignment with paths followed by the heads. A time inte... | 10/17/2000 |
| 6108148 | Method, device, and medium for recording digital signal A digital signal recording and reproducing method and apparatus that record and reproduce sequentially a normal reproducing digital signal and a multiple kind special reproducing digital signal on and from a tape-like recording medium. The data rate of th... | 08/22/2000 |
| 6104567 | Recording and reproducing apparatus including a tracking apparatus with a steady speed deviation circuit A tracking apparatus for a helical scan magnetic recording/reproducing system includes a rotation speed controller for controlling the rotation speed of a capstan motor which transports a magnetic tape, a speed deviation generator for applying a deviation... | 08/15/2000 |
