TAPE HEAD AND SYSTEM HAVING ASYMMETRICAL CONSTRUCTION

• US 20190341070A1
• Filed: 07/18/2019
• Published: 11/07/2019
• Est. Priority Date: 10/31/2016
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Biskeborn, Robert G.
• Granted Patent: US 10,832,708 B2
• Time in Patent Office: Days
• CPC Class Codes: G11B 15/60 Guiding record carrier guiding devices structurally associated with magazines or cassettes G11B23/04
• CPC Class Codes: G11B 15/62 Maintaining desired spacing between record carrier and head
• CPC Class Codes: G11B 15/64 by fluid-dynamic spacing
• CPC Class Codes: G11B 5/00813 magnetic tapes
• CPC Class Codes: G11B 5/00821 using stationary heads
• CPC Class Codes: G11B 5/00826 comprising a plurality of single poles or gaps or groups thereof operative at the same time
• CPC Class Codes: G11B 5/187 Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features G11B5/265, G11B5/29 , G11B5/31 take precedence
• CPC Class Codes: G11B 5/4893 relative to moving tape

Abstract

According to one embodiment, a computer-implemented method includes receiving a measurement of a first distance from a first edge to a sensor, receiving a predefined height of tenting of a magnetic recording tape above the sensor, and calculating a wrap angle to create the predefined height of tenting when the magnetic recording tape passes over the first edge in a direction of tape travel.

Claims

1. A computer-implemented method, comprising:

receiving a measurement of a first distance from a first edge to a sensor;

receiving a predefined height of tenting of a magnetic recording tape above the sensor; and

calculating a wrap angle to create the predefined height of tenting when the magnetic recording tape passes over the first edge in a direction of tape travel.

2. The method recited in claim 1, wherein the first distance is a stored value, wherein the stored value is retrieved.

3. The method recited in claim 1, wherein the first distance is detected.

4. The method recited in claim 1, wherein the first distance is measured mechanically.

5. The method recited in claim 1, wherein the first distance is measured optically.

6. The method recited in claim 1, comprising:

determining a second distance from a second edge to the sensor; and

selecting a second wrap angle based on the determined second distance for affecting or not affecting the tenting of the moving magnetic recording tape in a region above the sensor.

7. The method recited in claim 6, wherein the second distance is a stored value, wherein the stored value is retrieved.

8. The method recited in claim 6, wherein the second distance is detected.

9. The method recited in claim 6, wherein the second distance is measured mechanically.

10. The method recited in claim 6, wherein the second distance is measured optically.

11. The method recited in claim 1, wherein calculating the wrap angle includes considering a length of a tent formed at the calculated wrap angle.