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7245450 Synchronous servo channel for longitudinal position detection and position error signal generation in tape drive systems  
A fully synchronous longitudinal position (LPOS) detection system is provided for improving the reliability of servo channels in tape systems. The system is based on the interpolation of the servo...
7180694 Recording and/or reproducing apparatus, recording and/or reproducing method, recording medium and program  
A recording apparatus of a tape-shaped magnetic recording medium includes a transfer unit, a recording head, a signal-processing unit and a control unit. The transfer unit transfers a tape-shaped...
7099103 Methods for controlling the use of a cleaning cartridge for tape drives  
In one exemplary aspect of the present invention a method for cleaning a media drive transducer head is provided. The method includes transporting a portion of a cleaning tape over a transducer...
7064913 Enhanced read margining using dither enhanced write marginalization for mass data storage applications  
A recording target error rate is selected for one or more of data storage devices, and for each data storage device, a dither value is determined for each read/write head in the data storage...
6985325 Updateable centralized data position information storage system  
A method of centralized data position information storage comprising the steps of arranging a byte stream of data into partitioned logical data, providing an updateable centralized storage area...
6967802 System and method for reducing latency for serially accessible media  
A technique for reducing the access time in a storage system having serially accessible media. One or more duplicate copies of data are maintained at different offset locations on serial media....
6937413 Tape servo information with superimposed data information providing servo band identification  
In magnetic tape having separate longitudinal servo bands of servo information with superimposed data information, the separate servo bands have selected different superimposed data information, to...
6934109 Apparatus and method to monitor the relative position of a tape medium disposed in a tape drive  
A method to monitor the relative position of a magnetic tape disposed in a tape drive, where that tape drive includes a first tape reel motor and a second tape reel motor. The method provides a...
6791781 Method and apparatus for providing linear position (LPOS) estimations  
A method and apparatus for providing linear position (LPOS) estimations. If valid LPOS data may be detected from the tape, then a first method for LPOS estimation is performed using the Hall effect...
6697206 Tape edge monitoring  
The position of one or both edges of tape, such as magnetic tape, can be determined using a light source, such as a solid-state laser with a collimated beam, and a detector, such as a photodiode....
6624961 Tape drive apparatus and recording medium  
Formation of a partition is quickly performed. Management information areas such as a device area D 1 , system areas S 1 and S 2 , an optional device area OD 1 , and the like are produced by...
6580577 Magnetic tape apparatus with forced magnetic tape cleaning process  
A magnetic tape apparatus prevents dirt from being deposited on a magnetic tape even when the tape is repeatedly moved in a short interval. An operation monitoring unit calculates tape position...
6493167 Magnetic tape unit  
Disclosed herein is a magnetic tape unit having a magnetic head for reading and writing data from and onto a magnetic tape. The magnetic tape is traveled in contact with the magnetic head during a...
6209058 Cache management for data transfer control from target disk areas  
A method of data transfer in a cache system comprising a cache buffer including a plurality of data blocks for storing data, and a cache manager for retrieving data from a disk drive and storing...
6204987 Method for loading data on a tape at a center of the tape, and a tape for implementing the method  
In a method for writing data on a data carrier tape, a central region of the tape is positioned adjacent a data recording head, data are supplied to the data recording head, and data are...
6188536 Method and system for detecting the end of a tape within a magnetic tape drive  
A method and system for detecting the end of a tape within a tape drive system, wherein the tape drive system includes a take-up reel and a supply reel upon which the tape is wound. The tape is...
6160675 Magnetic recording and reproducing apparatus  
A magnetic recording and reproducing apparatus has a supply reel and a take-up reel around which a magnetic tape is to be wound. A first tape guide is provided in the vicinity of a rotary head at...
6057973 Method of seeking to tape segment without the use of inter-segment gap  
A tape drive comprising a processor which determines a position to which to move a recording tape without detecting inter-segment gaps on the tape. The tape drive includes a drive motor which...
5923490 High speed searching of digital cassette  
A searching and block access method on a digitally recorded continuous web media. The method enables a digitally recorded tape to be randomly positioned to access a specific requested data block....
5920676 Apparatus and method for removing noise bar  
A reproduction control apparatus and method in a video cassette recorder (VCR) reduces for reducing noise generated during a high-speed search of a picture in the VCR . In the reproduction control...
5815336 Method for sensing position of magnetic tape during discontinuous travel of the tape  
A method for sensing the position of a magnetic tape during a continuous travel of the magnetic tape in a video cassette recorder. The method is particularly applicable to a VCR which includes a...
5805371 Monitoring tape position in a magnetic recording/reproducing apparatus  
A magnetic recording/reproducing apparatus includes a mechanism body, a control circuit, and a memory circuit. The mechanism body has a loading mechanism, a tape traveling mechanism, and a reel...
5724203 Method and apparatus for determining addresses in time along a recording tape  
Apparatus and methods are provided for measuring an address in time between the beginning of the tape on the reel and the current location along a recording tape wound around a hub of a reel. A...
5710676 Pre-formatting of a storage media having fixed-size partitions  
A storage media for linear, serpentine recording is pre-formatted for data storage operations by recording partition format information in a single pass along the length of the storage media by...
5638229 Method for detecting an information recorded position in an information reproducing apparatus  
A method for setting an information reader to a target information recorded position on an information recording medium in an information reproducing apparatus includes steps of reading a start...
5608585 Magnetic recording and reproducing apparatus with repositioning stop mode  
A tape run control unit in the magnetic recording/reproducing apparatus is provided with a discrimination element and a control element. The discrimination element detects a stand-by time until a...
5581365 Remote control system for controlling tape playback apparatus on the basis of time code data recorded on the recording tape with the information data to be reproduced  
In a remote control system for controlling operation of a tape playback apparatus for reproducing an information signal from a recording tape on which a time code is recorded with said information...
5563747 Method for correcting the counter distortions in VCR  
A method for correcting the counter distortions in a VCR for compensating the distortion due to the difference between winding and unwinding amounts of tape when power is turned off and then turned...
5555141 Apparatus for electrically detecting starting/ending portions of a tape  
An apparatus, for detecting the starting or ending portion of a tape, has a detector for detecting the starting portion or the ending portion of the tape wound on a take-up reel and a supply reel...
5552943 Apparatus and method for accessing a location on a magnetic tape  
Access to a location on a tape along a transportation path thereof is controlled by controlling a revolution velocity of a reel motor based on a distance from a current location of the tape to a...
5475542 Method and apparatus for improving inter-block gap length tolerance and locate accuracy for write appends  
A method and apparatus for accurately locating targeted append points in a tape drive. The effects of interlayer slip (ILS) are eliminated and smaller IBGs are possible thus providing increased...
5448427 Magnetic recording and reproducing apparatus  
A tape run control unit in a magnetic recording and reproducing apparatus is provided with a discriminator and on a controller. The discriminator detects a stand-by time until a signal to be...
5446605 Method and apparatus for moving head from one tape track to another against the risk of damaging the tape  
A bidirectional, multitrack magnetic tape subsystem is disclosed which is for use with a two-reel, belt-driven tape cartridge in which the tape tension increases linearly with tape travel in either...
5400150 Screen encore method by reel-sensing in a video tape recorder system  
A screen encore method capable of displaying again (encore) a block of pictures designated by a user or a last picture with a single key by software control, without adding hardware, so that the...
5394279 Method and apparatus for simultaneoulsy searching two sides of a tape for locations of blanks between recorded signals  
A method of searching for blanks in a digital tape player with reduced search time by performing the operation of searching for blanks on both sides of an analog recorded tape concurrently. In a...
5388016 Magnetic tape data management method and apparatus  
A magnetic tape data management method and apparatus is described that reduces the access time for updating and referring to directory data. At the time of accessing data on a magnetic tape loaded...
5339200 Signal recording apparatus with rerecording facility  
The present invention provides an improvement in the function of automatically rewinding a tape-shaped recording medium to an immediately previous recording start position or to an immediately...
5327249 Apparatus and method for controlling the capstan motor of the video cassette recorder having function of automatic five/slow playback  
An apparatus and a method for controlling automatically a fine-slow in a VCR comprises a servo control device for controlling an operation of a capstan motor, a control head for detecting a control...
5270884 Servo control method in the absence of tape control signals  
A servo control method in the absence control signals is comprised of a compare routine (L1) and a non-signal phase control routine (L2). The compare routine (L1) is carried out in such a manner...
5264972 Method and apparatus for maintaining tape tension in a belt-driven tape cartridge  
In a belt-driven tape cartridge of the type used to store data on a magnetic tape in a high speed data storage and retrieval system, the tape must be maintained at a proper tension within the...
5227928 Magnetic recording/reproducing apparatus which maintains a constant speed relation between a linearly moving tape and a rotationally moving head  
A magnetic recording/reproducing apparatus for recording a signal onto a magnetic tape and reproducing a recorded signal comprises magnetic heads mounted on a rotary cylinder, a tape driving...
5195000 Searching device for a tape reproducing apparatus  
A searching device for a tape reproducing apparatus reproducing signals recorded on a tape wound on first and second reels includes first and second pulse generators respectively generating a shot...
5179479 Method of high speed searching for a desired tape portion in a digital audio tape recorder  
A tape searching method in a digital audio tape recorder by means of TOC (table of contents) and operation frequency sensed from a reel motor. The method for tape searching includes a first stage...
5146495 Circuit and method for maintaining security of video tape using privacy number  
A circuit for maintaining security of a video tape using a privacy number, including a sensing circuit for sensing lead tape portions of the video tape and producing a desired signal in accordance...
5043828 Editing control system for recording and/or reproducing apparatus for video tape and so forth with high efficiency pre-view operation  
An editing system measures the servo-lock period in every pre-view operation. Pre-roll time is updated based on the measured servo-lock period. The magnitude of rewinding of the tape is thus...
5035624 Presentation apparatus  
A presentation apparatus which can automatically adjust the total presentation time and presentation time intervals of a video material according to user's desired total presentation time so that...
5032937 Magnetic tape recording and/or reproducing apparatus having automatic mode changing capabilities  
A magnetic tape player which includes a tape transport speed selector capable of assuming one of first and second modes during which the magnetic recording tape is transported at a first transport...
4996611 Tape position data indicating apparatus for cassette tape player  
A tape position data indicating apparatus for a cassette tape player wherein a tape is wound between a supply reel and a take-up reel. The apparatus includes a reel base for rotating the take-up...
4963999 Tape position detection apparatus having start control and initial tape position recovery  
A tape position detection apparatus is disclosed wherein a tape is first fed in a forward direction from one reel to another for a predetermined period of time, under the control of a tape transit...
4887172 Apparatus and method for cueing a video tape recorder  
To position a cue location on a video tape to a scanner so that the information stored at the cue location can read by a transducer. The video tape is transported so that when the cue location...
Matches 1 - 50 out of 129 1 2 3 >