TRANSDUCER ARRAY TO WRITE DATA TO TAPE

• US 20160232936A1
• Filed: 07/11/2013
• Published: 08/11/2016
• Est. Priority Date: 07/11/2013
• Status: Abandoned Application

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Hoimberg, Mike Alan, Poorman, Paul W
• Application Number:
  US14/903,592
• Publication Number:
  US 20160232936A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G11B 15/1883 for record carriers inside containers
• CPC Class Codes: G11B 15/444 reversing arrangements G11B15/442 takes precedence
• 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 5/00813 magnetic tapes
• 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 5/2652 with more than one gap simultaneously operative with controlled single gap G11B5/245
• CPC Class Codes: G11B 5/29 Structure or manufacture of unitary devices formed of plural heads for more than one track G11B5/33, G11B5/49 and subgroups take precedence; in thin film structure G11B5/31
• CPC Class Codes: G11B 5/4893 relative to moving tape

Abstract

Tape heads are described herein including (i) a first module including a write transducer array with at least one transducer element to write data to a tape, and (ii) a second module including a write transducer array with at least one transducer element to write data to the tape. In examples herein, a lifting member with a curved portion formed at an inward edge of the module is provided to cause tape lifting the module and to prevent contact between the tape and the module at a trailing position with respect to tape travel direction.

Claims

1. A tape head comprising:

a first module including a write transducer array with at least one transducer element to write data to a tape;

a second module including a write transducer array with at least one transducer element to write data to the tape;

a first lifting member having a first curved portion formed at an inward edge of the first module to cause lifting of a tape portion over the first module and to prevent contact between the tape and the first module while the tape moves in a first direction such that the tape encounters, in the following order, the second module and the first curved portion of the first module; and

a second lifting member having a second curved portion formed at an inward edge of the second module to cause lifting of a tape portion over the second module and to prevent contact between the tape and the second module when the tape moves in a second direction such that the tape encounters, in the following order, the first module and the second curved portion of the second module.

2. The tape head of claim 1 further comprising a read module including a read transducer array with at least one transducer element to read data from a tape, the read module being disposed between the first module and the second module such that, when the tape moves in the first direction, the tape encounters, in the following order, the second module, the read module and the first module.

3. The tape head of claim 1, wherein

the first module includes a read transducer array with at least one transducer element to read data, the write transducer array and the read transducer array of the first module being aligned such that the first module can be operated to perform a read-after-write operation when the tape moves in the second direction;

and

the second module includes a read transducer array with at least one transducer element to read data, the write transducer array and the read transducer array of the second module being aligned such that the second module can be operated to perform a read-after-write operation when the tape moves in the first direction.

4. The tape head of claim 1, wherein the first lifting member is integrally formed in the first module and the second lifting member is integrally formed in the second module.

5. The tape head of claim 1, wherein:

the first lifting member is at the portion of the first transducer module that the tape first encounters when moving in the second direction; and

the second lifting member is at the portion of the second transducer module that the tape first encounters when moving in the first direction.

6. The tape head of claim 1, wherein:

the first curved portion is formed as part of the first module; and

the second curved portion is formed as part of the second module.

7. The tape head of claim 1, wherein at least one of the curved portion of the first module or the curved portion of the second module includes a portion with a curved profile, a beveled profile, a circular profile, blended profile, round profile, or a combination thereof.

8. The tape head of claim 1, further comprising:

a first outrigger disposed in the neighborhood of the first module; and

a second outrigger disposed in the neighborhood of the second module.

9. A tape drive, comprising:

a tape head including

(i) a first module including a write transducer array with at least one transducer element for writing data, and

(ii) a second module including a write transducer array with at least one transducer element for writing data;

a motorised drive for causing a tape to move in

(a) a first direction in which the first module is at a trailing position and the second module is at a leading position, and

(b) a second direction in which the first module is at a leading position and the second module is at a trailing position;

a first lifting member having a first curved portion formed on an inward edge of the first module arranged to cause a lift of a tape portion such that tape contact with the first module is prevented while the tape moves in the first direction;

a second lifting member having a second curved portion formed on an inward edge of the second module arranged to cause lift of a tape portion such that tape contact with the second module is prevented while the tape moves in the second direction; and

a circuit to cause

(i) the write transducer array of the first module to write data to the tape during a write operation in which the tape is moved in the second direction,

(ii) the write transducer array of the second module to write data to the tape during a write operation in which the tape is moved in the first direction.

10. The tape drive of claim 9 further comprising a read module including a read transducer array with at least one transducer element for reading data the read module being disposed between the first module and the second module, the circuit to cause

(i) the read transducer array of the read module to read data from the tape and the write transducer array of the first module to write data to the tape during a read-after-write operation in which the tape is moved in the second direction, and

(ii) the read transducer array of the read module to read data from the tape and the write transducer array of the second module to write data to the tape during a read-after-write operation in which the tape is moved in the first direction.

11. The tape drive of claim 9, wherein

the first curved portion is formed as part of the first lifting member;

the first curved portion is arranged to cause a tape lift preventing contact of the tape with the first module while the tape moves in the first direction;

the second curved portion is formed as part of the second lifting member;

the second curved portion is arranged to cause a tape lift preventing contact of the tape with the second module while the tape moves in the second direction.

12. A method for operating a tape drive, the method including:

moving a tape in a direction such that the tape encounters a module at a leading position and a module at a trailing position, each of the modules including a write transducer array with at least one transducer element for writing data to the tape; and

writing data to the tape using the write transducer array of the module at the leading position with respect to a direction of tape travel;

wherein

moving the tape includes moving the tape over a lifting member with a curved portion formed on an inward edge of the module so as to cause a lift of a tape portion over the module at the trailing position while moving the tape in said direction.

13. The method of claim 12, further comprising reading data includes reading data using a read transducer array of a read module disposed in-between said modules.

14. The method of claim 12, wherein moving the tape includes moving the tape over the curved portion of the module at the trailing position so as to cause the lift of the tape portion.

15. The method of claim 12, wherein the curved portion of the module includes a portion with a curved profile, a beveled profile, a circular profile, blended profile, round profile, or a combination thereof.