Title:
SERVO SIGNAL VERIFICATION DEVICE, SERVO WRITER, METHOD FOR MANUFACTURING MAGNETIC RECORDING TAPE, AND SERVO SIGNAL READING HEAD
Document Type and Number:
WIPO Patent Application WO/2020/195150
Kind Code:
A1
Abstract:
Provided is a servo signal verification device for verifying a servo signal in a magnetic recording tape having a high recording density. The present invention provides a servo signal verification device provided with: at least one servo signal reading head that reads a servo signal written in a servo band of a magnetic recording tape; a first amplifier that amplifies the servo signal read by the servo signal reading head; and a second amplifier that includes a low-pass filter having a cutoff frequency of 35 MHz or less and that amplifies the signal amplified by the first amplifier. The present invention also provides a servo writer that includes the servo signal verification device, and a method for manufacturing a magnetic recording tape, which uses the servo signal verification device. The present invention further provides a servo signal reading head included in the servo signal verification device.
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Inventors:
MORITA HIROSHI (JP)
Application Number:
PCT/JP2020/003577
Publication Date:
October 01, 2020
Filing Date:
January 31, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G11B5/09; G11B5/23; G11B5/29; G11B5/584; G11B5/706; G11B21/10
Foreign References:
| JP2000011347A | 2000-01-14 | |||
| JP2009032325A | 2009-02-12 | |||
| JP2010040099A | 2010-02-18 | |||
| JP2011192356A | 2011-09-29 | |||
| JP2001006103A | 2001-01-12 | |||
| JP2005285312A | 2005-10-13 | |||
| JP2002334401A | 2002-11-22 |
Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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