Disc drive circuitry swap

• US 9,679,602 B2
• Filed: 06/14/2006
• Issued: 06/13/2017
• Est. Priority Date: 06/14/2006
• Status: Active Grant

• Current Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Original Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Inventors: Hartman, David, German, Robert, Brady, Michael
• Primary Examiner(s): Dang, Hung
• Assistant Examiner(s): Wendmagegn, Girumsew
• Application Number:
  US11/453,167
• Publication Number:
  US 20070292114A1
• Time in Patent Office: 4,017 Days
• Field of Search: 386239, 369 31, 369 75, 360 31, 360 69, 360 75
• CPC Class Codes: G11B 20/10018 analog processing for digital recording or reproduction G11B20/10037 - G11B20/10481 take precedence
• CPC Class Codes: G11B 20/10037 A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
• CPC Class Codes: G11B 20/1816 Testing
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 20/1889 with discs
• CPC Class Codes: G11B 2020/183 wherein at least one additional attempt is made to read or write the data when a first attempt is unsuccessful
• CPC Class Codes: G11B 2020/1896 using skip or slip replacement to relocate data from a defective block to the next usable block, e.g. with a primary defect list [PDL]
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/21 characterised in that the disc is of read-only, rewritable, or recordable type
• CPC Class Codes: G11B 5/09 Digital recording
• CPC Class Codes: H05K 7/02 Arrangements of circuit components or wiring on supporting structure

Abstract

A method comprises creating calibration data using a first control circuitry of an apparatus, replacing the first control circuitry with a second control circuitry in the apparatus, and operating the apparatus with the second control circuitry using the calibration data. As an example, the apparatus may be a disc drive. The second control circuitry may be substantially similar to the first control circuitry such that calibration measurements using the first control circuitry are applicable to the second control circuitry. The first control circuitry may be included in a circuit board that is replaced with a second circuit board including the second control circuitry. In an exemplary embodiment, the second circuit board may include different and/or additional components relative to the first circuit board, such as integrated video inputs and/or video control circuitry.

Claims

1. A method comprising:

creating calibration data using a first control circuitry of a disc drive;

replacing the first control circuitry with a second control circuitry with different components relative to the first control circuitry in the disc drive, the second control circuitry configured to provide different functionality as compared to the first control circuitry; and

operating the disc drive with the second control circuitry using the calibration data.

2. The method of claim 1, wherein the disc drive includes a media disc.

3. The method of claim 2, further comprising recording the calibration data to the media disc.

4. The method of claim 2, wherein the calibration data includes data track information for data tracks on the media disc.

5. The method of claim 2, wherein the calibration data includes signal response calibration information for data signals recorded on the media disc.

6. The method of claim 5,

wherein the media disc is encased in a housing of the disc drive,

wherein the signal response calibration information includes calibration information for a first signal path,

wherein the first signal path includes a head and a first channel,

wherein the first channel is part of the first control circuitry and the head is encased within the housing,

wherein operating the disc drive assembly with the second control circuitry includes reading data from the media disc using a second signal path,

wherein the second signal path includes a second channel and the head, and

wherein the second channel is part of the second control circuitry.

7. The method of claim 1,

wherein the first control circuitry is part of a first circuit board,

wherein the second control circuitry is part of a second circuit board.

8. The method of claim 7, wherein the disc drive includes a media disc, and wherein the second circuit board includes a video signal input, further comprising:

receiving a video signal with video signal input; and

recording video data from the video signal to the media disc.

9. The method of claim 7, wherein the second circuit board includes a communication interface that is not included in the first circuit board.

10. The method of claim 9, wherein the first communication interface is selected from a group consisting of:

Integrated Drive Electronics (IDE);

Advance Technology Attachment (ATA);

Fibre Channel (FC);

Small Computer System Interface (SCSI); and

Serial Attached SCSI (SAS).

11. The method of claim 9, wherein the communication interface of the second circuit board includes a video input connection, wherein the video input connection is selected from a group consisting of:

Digital Visual Interface (DVI);

High-Definition Multi-media Interface (HDMI);

component video;

coaxial cable jack;

composite video;

s-video; and

left-right audio.

12. The method of claim 1, wherein the calibration data is stored in the disc drive in a separate location from the first control circuitry.

13. A method comprising:

replacing a first control circuitry within a disc drive, the first control circuitry configured to calibrate the disc drive, with a second control circuitry within the disc drive, the second control circuitry in the disc drive including different components relative to the first control circuitry and with different functionality compared to the first circuitry, and configured to operate the disc drive with calibration data created by the first control circuitry.

14. The method of claim 13, wherein the disc drive includes a media disc.

15. The method of claim 13, further comprising:

recording calibration data within the disc drive.

16. The method of claim 13, wherein a spacer adapts the disc drive to connect with the first control circuitry or the second control circuitry.

17. A data storage apparatus comprising:

a memory storing calibration data created during calibration of the disc drive a first control circuitry; and

a second control circuitry including different components relative to the first control circuitry and with different functionality compared to the first circuitry, and configured to operate the disc drive with the calibration data created by the first control circuitry.

18. The data storage apparatus of claim 17, wherein the disc drive includes a media disc.

19. The data storage apparatus of claim 17, wherein the memory is a media disc.

20. The data storage apparatus of claim 17, wherein a spacer adapts the disc drive to connect with the first control circuitry or the second control circuitry.