No assignee for this patent application has been made.
News editors obtained the following quote from the background information supplied by the inventors: "The invention relates to a transport system for transporting magnetic tape, an apparatus, in particular for data storage and/or writing servo patterns, and a method for operating a transport system for transporting magnetic tape.
"In modern tape systems, data is organized in data tracks which are written and read back in a parallel fashion by a read and write head comprising servo read, data read and data write elements, i.e., transducer elements. These data tracks run in the longitudinal direction of the magnetic tape and are much narrower than the excursions the magnetic tape experiences in the lateral direction (also referred to as lateral tape motion, 'LTM') as a result of imperfections in the mechanical entrainment system. Therefore, it is crucial to accurately position the head relative to the magnetic tape in the lateral direction, and to maintain this relative position as the magnetic tape is streamed. To this end, as well as for other purposes, media manufacturers write servo tracks on the magnetic tape parallel to and interleaved with the data tracks. The servo read elements read the servo information stored in the servo tracks, which is then used for aligning the head with the data tracks on the magnetic tape.
"Servo tracks are typically written to the magnetic tape using one servo write element for each servo track. Each servo write element generally comprises a yoke having one or more gaps and a coil for producing a magnetic field at each gap. The write elements are configured to imprint a specific pattern on the magnetic tape via fringing magnetic fields. This pattern contains the information required to determine the instantaneous lateral location of the data read and write elements (or the head as a whole) using a timing-based-servo (TBS) scheme as for example described in EP 0 690 442 A2.
"TBS is a technology that was developed specifically for linear tape drives. It has been adopted by the
"However, due to limited bandwidth and slew rate of the head actuating system, the head cannot follow high frequency or large amplitude LTM. This is why in some known transport systems magnetic tape is transported from a cartridge reel to a take-up reel via a plurality of rollers having flanges on both ends to mechanically constrain LTM."
As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "In one embodiment, a transport system for transporting magnetic tape includes at least one roller configured to guide the magnetic tape, the at least one roller having at least one electrode; and a controller being configured to apply a voltage to the at least one electrode so as to produce a force of attraction between the magnetic tape and the at least one electrode.
"In another embodiment, a method for operating a transport system for transporting magnetic tape is disclosed, wherein a controller applies a voltage to at least one electrode of a roller for guiding the magnetic tape, thereby producing a force attracting the magnetic tape to the at least one electrode.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
"In the following, exemplary embodiments of the present invention are described with reference to the enclosed figures.
"FIG. 1 shows, in a perspective view, an apparatus according to one embodiment;
"FIG. 2 shows, in a perspective view, an apparatus according to a further embodiment;
"FIG. 3 shows, in a perspective view, an apparatus according to a further embodiment;
"FIG. 4 shows, in a perspective view, a roller from FIG. 3;
"FIG. 5 shows, in a perspective view, a roller according to a further embodiment;
"FIG. 6 shows, in a perspective view, a roller according to a further embodiment;
"FIG. 7 shows, in a perspective view, a roller according to a further embodiment;
"FIG. 8 shows, in a perspective view, an apparatus according to a further embodiment;
"FIG. 9 shows, in a perspective view, a roller from FIG. 8;
"FIG. 10 shows, in a perspective view, a roller according to a further embodiment; and
"FIG. 11 shows a flowchart.
"In the Figures, same reference signs refer to the same or functionally equivalent elements unless otherwise indicated."
For additional information on this patent application, see: Engelen,
Keywords for this news article include: Patents.
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC
Most Popular Stories
- Taco Bell Rings Up Breakfast Menu
- California Establishes Center for Coffee Study
- Visa, MasterCard Team Up to Focus on Payment Security
- Sunday Starts Daylight Saving Time
- Samsung Launches Milk Music
- Three Americans on Missing Malaysia Airlines Plane: State Department
- For Obama, a Last Stab at Improving Ties with Capitol Hill
- China Urges Malaysia Flight Emergency Response
- BofA CEO Gets a 77 Percent Pay Bump
- Russia, Crimea Discuss Referendum