IP Library Granted Patent US 7,154,697
Granted Patent B2
US 7,154,697 · App. 10/914,959 · Granted Dec 26, 2006

Vertically-oriented servo track writer and method

Assignee: Seagate Technology LLC
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Quick Facts
Patent No.
US 7,154,697
App. No.
10/914,959
Granted
Dec 26, 2006
Kind
B2
Abstract

A vertically-oriented servo track writer assembly and method for recording servo pattern on a disc surface includes a spindle hub assembly that rotates one or more discs in a substantially vertical plane and an actuator assembly that pivots an E-block about a substantially horizontal axis. The E-block includes one or more actuator arms and associated flexures, with each flexure including a servo recording head. Pivoting motion of the E-block moves each servo recording head in a substantially vertical plane adjacent a surface of an associated disc to record servo pattern information on the disc surface. The method further includes laterally moving the actuator assembly into and out of engagement with the spindle hub assembly to simplify loading and unloading discs from the spindle hub assembly.

Claims (19)

1. A servo track writer comprising:

a motor configured to rotate a data storage medium in a first substantially vertical plane and about a substantially horizontal axis; and

a servo recording head configured to write servo pattern information to the medium.

2. The servo track writer of claim 1 , wherein the servo recording head is supported by an actuator which advances the head adjacent the data storage medium along a second substantially vertical plane parallel to the first substantially vertical plane.

3. The servo track writer of claim 2 , wherein the actuator comprises a flexure which supports the servo recording head.

4. The servo track writer of claim 1 , wherein the servo recording head is held in a substantially stationary position while the data storage medium is advanced adjacent thereto to write the servo pattern information.

5. The servo track writer of claim 1 , further comprising a spindle hub assembly comprising a hub coupled to the motor, the hub configured to support the medium in the first substantially vertical plane.

6. The servo track writer of claim 1 , wherein the motor is further configured to support a plurality of data storage media nominally identical to the data storage medium, and wherein the servo track writer further comprises a corresponding array of servo recording heads configured to write the servo pattern information to said plurality of data storage media.

7. The servo track writer of claim 6 , wherein the number of said plurality of data storage media comprises at least 12.

8. The servo track writer of claim 1 , wherein the data storage medium is characterized as a magnetic recording disc.

9. A method comprising a step of using a servo track writer to rotate a data storage medium in a first substantially vertical plane and about a substantially horizontal axis and to write servo pattern information to the medium with a dedicated servo recording head during said rotation.

10. The method of claim 9 , further comprising positioning the data storage medium on a spindle hub assembly of the servo track writer prior to the using step.

11. The method of claim 9 , wherein the using step comprises moving an actuator of the servo track writer to advance the dedicated recording head of the servo track writer adjacent the medium along a second substantially vertical plane parallel to the first substantially vertical plane.

12. The method of claim 9 , further comprising steps of removing the data storage medium from the servo track writer, and installing the data storage medium in a data storage device.

13. The method of claim 9 , wherein the using step comprises concurrently rotating a plurality of data storage media nominally identical to the data storage medium and writing the servo pattern information to said plurality of data storage media.

14. The method of claim 13 , wherein the number of said plurality of data storage media comprises at least 12.

15. The method of claim 9 , wherein the data storage medium is characterized as a magnetic recording disc.

16. A servo track writer comprising a motor and a servo recording head, wherein the servo track writer writes servo pattern information to a data storage medium by steps comprising using the motor to rotate the medium in a first substantially vertical plane and about a substantially horizontal axis, and using the servo head to write the servo pattern information during said rotation.

17. The servo track writer of claim 16 , further configured to write the servo pattern information to a plurality of concurrently rotated data storage media nominally identical to the data storage medium.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Jul 23, 2025
From: THE BANK OF NOVA SCOTIA
To: SEAGATE TECHNOLOGY PUBLIC LIMITED COMPANY; SEAGATE TECHNOLOGY; SEAGATE TECHNOLOGY HDD HOLDINGS; I365 INC.; SEAGATE TECHNOLOGY LLC; SEAGATE TECHNOLOGY INTERNATIONAL; SEAGATE HDD CAYMAN; SEAGATE TECHNOLOGY (US) HOLDINGS, INC.
Reel/Frame 072193/0001 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS Recorded Jul 19, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE
To: SEAGATE TECHNOLOGY LLC; EVAULT INC. (F/K/A I365 INC.); SEAGATE TECHNOLOGY INTERNATIONAL; SEAGATE TECHNOLOGY US HOLDINGS, INC.
Reel/Frame 030833/0001 →
SECURITY AGREEMENT Recorded Mar 24, 2011
From: SEAGATE TECHNOLOGY LLC
To: THE BANK OF NOVA SCOTIA, AS ADMINISTRATIVE AGENT
Reel/Frame 026010/0350 →
RELEASE Recorded Jan 19, 2011
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: SEAGATE TECHNOLOGY HDD HOLDINGS; MAXTOR CORPORATION; SEAGATE TECHNOLOGY LLC; SEAGATE TECHNOLOGY INTERNATIONAL
Reel/Frame 025662/0001 →
SECURITY AGREEMENT Recorded May 15, 2009
From: MAXTOR CORPORATION; SEAGATE TECHNOLOGY LLC; SEAGATE TECHNOLOGY INTERNATIONAL
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT AND FIRST PRIORITY REPRESENTATIVE; WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE
Reel/Frame 022757/0017 →
Continuity (3)
Continuation 1000345700 · Oct 31, 2001
Provisional Application 6029527500 · Jun 1, 2001
Related Publication 20050007704A1 · Jan 13, 2005