Match Document Document Title
7361422 Leader tape and magnetic tape cartridge using the same  
A leader tape in which an non-magnetic under layer that contains a powder and a binder and a magnetic upper layer are sequentially laminated on at least one side of a support, a center line average...
7295402 Magnetic tape cartridge and recorder/reproducer a magnetic tape cartridge  
A magnetic tape cartridge and A magnetic tape cartridge recording/reproducing apparatus, which can prevent a magnetic tape from being charged to avoid damage of a magnetic head while lowering the...
7291996 Optical disc drive and brake control method thereof  
An optical disc drive 1 includes a spindle motor 11 for rotating the optical disc 2 and a spindle driver for driving the spindle motor 11 equipped with a rotation number counter 232 for...
7280310 Magnetic recording and reproduction apparatus  
A magnetic recording and reproduction apparatus includes a main chassis on which a rotatable head cylinder is mounted; a sub chassis movable relative to the main chassis; a cassette holder for...
7268971 Magnetic head apparatus and drive apparatus including magnetic head apparatus  
A narrow magnetic body 66 in which outward path and inward path recording magnetic head devices 1 WF and 1 WR, capable of recording at least data on a metal evaporated type magnetic tape 51 ...
7260884 Method of manufacturing a drum assembly associated with video tape machine  
A method of manufacturing a drum assembly associated with a digital betacam video tape machine is disclosed. The method includes providing a helical scan drum assembly having a stationary upper...
7256958 Loading gear supporting apparatus of video cassette recorder  
Disclosed is a loading gear supporting apparatus of a video cassette recorder which can assemble a loading gear supporting member which supports a pole base loading gear, a first loading gear, and...
7251093 Tape system with adjustable wrap angles and method for adjusting tape wrap angle  
A method for adjusting a tape wrap angle is described comprising the steps of operating the tape system to generate or regenerate an electrical signal in the head from the tape, either increasing...
7196866 Interconnect structure having multiple layers of traces for electrical connection to a tape head assembly  
An apparatus and method for electrically coupling read elements and write elements of a tape head assembly to another component includes an interconnect structure having plural layers of traces,...
7180699 Method and apparatus for increasing capacity of magnetic media storage  
A method and apparatus for increasing the capacity of magnetic media storage is disclosed. More specifically, an improved two-sided magnetic tape is disclosed. In one implementation, in order to...
7171740 Tape head module assembly method  
A tape head module assembly method is disclosed. A first and second module holder are placed in an initial alignment with module holder ends facing each other, the module ends each holding a tape...
7068464 Double sided magnetic tape  
Magnetic tape onto which information may be recorded on either side exhibits the risk of having information recorded on one side affect the opposite side when the two sides are adjacent, such as...
7054101 System for high density linear serpentine data recording  
A recording system comprises a read-write head with a length that is substantially smaller than the width of the tape, the small mass of the head allows high frequency track following. The head...
6980393 Low power spindle motor with a fluid dynamic thrust bearing having a reduced outer diameter  
A spindle motor for use in a disk drive having a rotor assembly and a stator assembly. The rotor assembly has a hub and a rotating shaft with an outer diameter, the hub being mounted for rotation...
6940686 Magnetic recording and reproducing device  
A porous impregnation material ( 14 ) impregnated with a gaseous-phase lubricant that vaporizes at an atmosphere temperature within an outer case ( 2 ) is disposed in the inside of the outer case (...
6898058 Composite substrate for use in magnetic recording-and-reproducing device  
Disclosed is an improved composite substrate for use in a magnetic recording-and-reproducing device. It comprises an ā€œLā€-shaped main plate and a separate sub-plate. The ā€œLā€-shaped main...
6788492 Wide tape drive for a wide tape holding frame  
A wide tape drive for use with a wide tape holder having a frame with an open top and an open bottom non-permanently closed with a top cover and a bottom cover, releasably held together and...
6779080 Serial data storage system with automatically adjusted data protection to implement worm media with limited overwrite allowing write appending  
In a data storage subsystem, drive-level processing treats data storage media as WORM by automatically advancing a write append limiter as data is written, and preventing changes to data occurring...
6760177 Signal-based tape wrap angle setting for flat contour linear tape recording heads  
In an essentially flat contour linear tape recording head, a nominal tape wrap angle exists at which reading signals from the magnetic tape ceases and/or commences. This nominal tape wrap angle can...
6708237 Method and apparatus for managing data access and storage of data located on multiple storage devices  
An apparatus and method for accessing a data item from a storage system having a plurality of data storage devices are disclosed. I/O operation requests are submitted to multiple data storage...
6700733 Tape system with adjustable wrap angles and method for adjusting tape wrap angle  
A method for adjusting a tape wrap angle is described comprising the steps of operating the tape system to generate or regenerate an electrical signal in the head from the tape, either increasing...
6498699 Tape transport using a carrier ribbon  
A tape transport system for positioning magnetic tape moving over a tape head is provided. The tape system includes a carrier ribbon having a width equal to the tape width. Passages through the...
6330625 System for initiating multiple read operation requests to multiple copies of a data item and identifying a first one of the requests as having the fastest response time  
An apparatus and method for accessing a data item from a storage system having a plurality of data storage devices are disclosed. I/O operation requests are submitted to multiple data storage...
6307274 Power generator for a digital cassette cartridge  
A power generator for a Digital Cassette Cartridge, which is put into a cassette player for playing back the digital audio files stored in the Digital Cassette Cartridge. The cassette player...
6266677 System and method for ensuring the integrity of stored data  
A system and method for determining when data stored in a data storage device is becoming unreliable. A list of trigger events is maintained, either on the media, or on a host processor, and the...
5995319 Electronic apparatus having a main body and a detachable input /or output block  
An electronic apparatus such as a tape recorder includes a main body, an input and/or output block, and an attach/detach mechanism. The main body has a first terminal section. The input and/or...
5896240 Pinch roller and pinch roller apparatus having a self-alignment function  
A pinch roller apparatus is disclosed which fully satisfies the requirements of tape running stability and durability of the bearing. A roller shaft is arranged inclined such that the tip end is...
5874817 Motor driving circuit for a three-phase brushless motor  
A switching signal generator outputs a switching signal which indicates either an accelerating mode or a decelerating mode by comparing a motor control signal and reference voltage. A first...
5786960 Device for displaying the rotating condition of tape or disk in audio or video systems  
A device for displaying the rotating condition of a tape or disk in audio or video systems is disclosed. The display device has a rotary means, which is installed inside a housing of an audio or...
5669568 Brake device for a magnetic recording and reproducing apparatus  
A brake device for magnetic recording and reproducing apparatus, such as a slide loading type camera recorder. The supply reel brake unit includes a supply reel brake having an operating pin, and a...
5663848 Clip for attaching tape drive motor to chassis  
A magnetic tape drive for reading/writing data on magnetic tape in a cartridge of the type in which a driven roller in the cartridge moves tape past a read/write head in the drive has a spring clip...
5528578 Digital information recording by burning conductive spots with electrical pulses in an insulating layer or a recording medium  
A method and apparatus for recording and playing back of a permanent digital information on a recording medium consisting of an insulating and a conductive layers of material, by creating spots of...
5436055 Magnetic recording medium and magnetic tape cassette mounted with the magnetic recording medium  
A magnetic recording medium and a magnetic tape cassette are disclosed, comprising a non-magnetic support having formed on one surface only thereof at least two layers including a lower layer and...
5432653 Loop-shaped pneumatic drive  
A loop-shaped drive and drive system for retrieving and storing information on flexible recording strips. The drive has a loop-shaped conduit having a working surface on its inner periphery. A...
5426355 Power-off motor deceleration control system  
A system (20) for controlling deceleration of a motor (22) during an abrupt power-off condition includes a processor (40), a motor control circuit (50), and a secondary power source (70). During...
5315461 Method and apparatus for eliminating the effect of staggerwrap on tape guidance  
A method and apparatus is disclosed for eliminating the effect of unevenly wound magnetic tape media on the guidance of the media relative to a tape transport read/write head. A first guide is used...
5227934 Device for making independently operable in time, a tape recording device and a device for playing back said tape  
The present invention relates to a tape recorder system with a tape recording device and a playback device independently operable in time. The tape recorder system includes a recording sub-assembly...
5095390 Apparatus for storing and feeding endless tape and recorded tape duplicator system utilizing the same  
An endless tape storage apparatus has a casing defining a chamber for storing the endless tape. The casing defines an inlet through which the tape is introduced and an outlet through which the tape...
5062013 Tape recorder including cam operated mode changing mechanism  
Here is disclosed a tape recorder including a mode changing mechanism which comprises, in turn, a cam gear operatively associated with a head base so that the cam gear is rotated in accordance with...
5029028 Single-motor changing tape player  
A tape player which is reduced in number of parts to permit the space on a head base to be utilized effectively and easy to assemble. The tape player comprises a pinch roller shaft secured to a...
5028829 Compact motor mount for cassette drive  
A compact motor mount for cassette drive systems includes a base plate in the form of a laminate that includes at least one planar layer of ferromagnetic material sandwiched between two printed...
5005094 Mode changeover mechanism with flat cam surface for a tape player  
A mode changeover mechanism for changing over the operating mode of a tape player having a magnetic head for recording signals on a magnetic tape contained in a tape cassette loaded on the tape...
4987503 Method to produce pre-recorded tape cassettes  
A conventional video recorder has a top plate 2 mounting a tape supply spool 22 and tape take-up spool 22a upon a common shaft 19. A recording assembly 6 has a conventional video recording drum and...
4974101 Method of monitoring the loading and unloading of a tape in recording and playback equipment  
A graphics display in the form of special effects recording, displayed on a monitor in real time in synchronism with the sensing and internal control signals utilized for the operation of the...
4974100 Endless tapedrive system  
A tape running device for storing and running an endless magnetic tape for mass-producing copies of the endless magnetic tape. The tape running device comprises a tape storage mechanism for storing...
4964557 Bidirectional web guiding system  
Disclosed is a system for bidirectionally guiding web, such as tape in magnetic tape recording/reproducing apparatus. The system eliminates the necessity for edge guides, reduces stresses in web...
4958247 Magnetic tape recorder having tape buffer vacuum chambers and ante chambers  
A magnetic tape recorder contains two tape buffer vacuum chambers disposed at opposed sides of a supply reel and a take-up reel situated therebelow. The open ends of the buffer chambers are both...
4943878 Ultra-compact recorder  
An ultra compact recorder in which the drive motor is located within the central aperture of a tape reel. The motor shell functions as the axle around which the supply reel rotates. In the single...
4913328 Active tape tracking system with crown guide rollers for magnetic recorder/players  
A magnetic tape tracking system for a magnetic recorder/player having a crown guide roller whose orientation can be controlled to effect lateral movement of the tape. This movement is utilized to...
4873592 Pinch roller drive engagement mechanism for a communications monitor and logger  
The communications monitor and logger preferably uses reel-to-reel tape recorders to continuously record communications over multiple channels such as multiple telephone lines. Each tape recorder...